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    • 专利摘要:
    methods for producing liquid detergent products. the present invention provides methods for producing liquid detergent products using a vessel comprising an inlet, an outlet, a stirring device and an additive mixing zone arranged between the inlet and the outlet. the method comprises the introduction of an unstructured liquid detergent precursor at the entrance of the vessel; mixing an additive and the unstructured liquid detergent precursor in an additive mixing zone to form a combined additive detergent; the addition of a structuring agent to the combined additive detergent downstream of the additive mixing zone to form a liquid detergent product. liquid detergent products can be used in a small water-soluble wrapper, for example, a small multi-compartment water-soluble wrapper.
    公开号:BR112014020850B1
    申请号:R112014020850-6
    申请日:2013-04-23
    公开日:2021-04-27
    发明作者:Francesc Corominas；Laurens Beelen；Mohamed Akalay
    申请人:The Procter & Gamble Company；
    IPC主号:
    专利说明:

    TECHNICAL FIELD
    [001] This description generally refers to methods for producing liquid detergent products that have improved product performance and aesthetics. BACKGROUND
    [002] The aesthetics of the detergent composition for washing clothes is important for consumers. For example, it has been found that consumers tend to associate a white, opaque detergent composition with cleaning. In addition, having a good aroma associated with the detergent composition is important for consumers. However, these aesthetic additives are not always stable once they are added to a detergent composition. During processing, opacifiers, for example, when added to a basic detergent composition that comprises less than about 15% water can form white particles. Perfume microcapsules added to the basic detergent composition can agglomerate or self-associate, thus limiting their performance in releasing fragrance to fabrics. In addition, structuring or polymers for suspending dirt, when added to the detergent base, can form gel particles and gel spheres (from the agglomeration of gel particles). During processing, white and gel particles, as well as clusters of perfume microcapsules, can accumulate in the system and clog pipes. In addition, these white particles may be visible in the final product.
    [003] Consequently, there is a need to develop a process for producing a liquid detergent composition that comprises an opacifier without the formation of white particles. There is also a need to develop a process for producing a liquid detergent composition that comprises perfume microcapsules without the formation of large perfume microcapsule aggregates. There is an additional need to develop a process for producing a liquid detergent composition comprising a polymer for suspending dirt and / or a structurant without the formation of gel particles or gel spheres. SUMMARY
    Consequently, methods for producing liquid detergent products are presented with the use of a vessel comprising an inlet, an outlet, a stirring device and a microcapsule mixing zone arranged between the inlet and the outlet. The method comprises: a) introduction of an unstructured liquid detergent precursor at the entrance of the vessel, said unstructured liquid detergent precursor comprising from about 10% to 90%, by weight of the precursor, of a surfactant and of about 0% to about 15%, by weight of the precursor, of water; b) mixing an aqueous slurry comprising perfume microcapsules and the precursor of unstructured liquid detergent in the microcapsule mixing zone to form a combined microcapsule detergent; and c) adding a structuring agent to the combined microcapsule detergent downstream of the microcapsule mixing zone to form a liquid detergent product.
    [005] Additional modalities are directed to methods for forming a liquid detergent product with the use of a vessel comprising an inlet, an outlet and an opacifier mixing zone arranged between the inlet and the outlet. The method comprises: a) introduction of an unstructured liquid detergent precursor at the entrance of the vessel, said precursor comprising from about 10% to 90%, by weight of the precursor, of a surfactant and from about 0% to about 15%, by weight of the precursor, of water; b) adding an opacifier to the precursor of unstructured liquid detergent upstream of the opacifier mixing zone; c) mixing the opacifier and the unstructured liquid detergent precursor in the opacifier mixing zone to form an opaque detergent; and d) adding a structuring agent to the opaque detergent downstream of the opacifying mixing zone to form the liquid detergent product. BRIEF DESCRIPTION OF THE DRAWINGS
    [006] Figure 1 represents a flowchart of an exemplary production method of a liquid detergent product according to one or more modalities shown and described here.
    [007] Figure 2 represents a flowchart of an exemplary production method of a liquid detergent product according to one or more modalities shown and described here.
    [008] Figure 3 represents a micrograph of perfume microcapsules incorporated into a liquid detergent product under low mixing energy.
    [009] Figure 4 represents a micrograph of perfume microcapsules incorporated into a liquid detergent product under suitable mixing energy. DETAILED DESCRIPTION
    [0010] Features and benefits of various modalities of the present invention will become apparent with the following description, which includes examples of specific modalities designed to render a broad representation of the invention. Various modifications will be evident to those skilled in the art from this description and from the practice of the invention. It is not intended to limit the scope to particular forms presented and the invention encompasses all modifications, equivalents and alternatives that are within the spirit and scope of the invention, as defined by the claims.
    [0011] Here are presented methods for producing liquid detergent products. The term 'liquid' is intended to include liquid, paste, waxy or gel compositions. Liquid detergent products can be used in a small water-soluble wrapper, for example, a small, multi-compartment water-soluble wrapper. The small wrapper can comprise a water-soluble film and at least one first, and, optionally, a second compartment. In some examples, the first compartment comprises a liquid detergent product comprising perfume capsules. In other examples, the first compartment comprises a liquid detergent product which comprises an opacifier. The optional second compartment comprises a second detergent product. The small wrapper may additionally comprise an optional third compartment which comprises a third detergent product. The second and third optional detergent products can be visibly different from each other and the first detergent product. Process
    [0012] The examples described here include methods for producing a liquid detergent product using a vessel comprising an inlet, an outlet, a stirring device and an additive mixing zone arranged between the inlet and the outlet. As described in greater detail below, the method comprises the introduction of an unstructured liquid detergent precursor at the entrance of the vessel, and said unstructured liquid detergent precursor comprises from about 10% to 90%, by weight of the precursor, a surfactant and from about 0% to about 15%, by weight of the precursor, of water; mixing an additive and the unstructured liquid detergent precursor in an additive mixing zone to form a combined additive detergent; addition of a structuring agent to the combined additive detergent downstream of the additive mixing zone to form a liquid detergent product. In some examples, the additive may comprise perfume microcapsules, opacifiers and mixtures thereof.
    [0013] With reference to Figure 1, a method for producing a liquid detergent product is shown. The method comprises introducing an unstructured liquid detergent precursor (105) at the entrance to a vessel (100), said unstructured liquid detergent precursor (105) comprising from about 10% to 90%, by weight of the precursor, a surfactant and from about 0% to about 15%, by weight of the precursor, of water; mixing an aqueous slurry comprising perfume microcapsules (110) and the unstructured liquid detergent precursor (105) in the microcapsule mixing zone (115) to form a combined microcapsule detergent; adding a structurant (120) to the combined microcapsule detergent downstream of the microcapsule mixing zone (115) to form a liquid detergent product (125).
    [0014] With reference to Figure 2, the method comprises introducing an unstructured liquid detergent precursor (205) at the entrance of a vessel (100), said precursor comprising from about 10% to 90%, by weight of the precursor, of a surfactant and from about 0% to about 15%, by weight of the precursor, of water; adding an opacifier (210) to the precursor of unstructured liquid detergent (205) upstream of the opacifier mixing zone (215); mixing the opacifier (210) and the unstructured liquid detergent precursor (205) in the opacifier mixing zone (215) to form an opaque detergent; adding a structuring agent (220) to the opaque detergent downstream of the opacifying mixing zone (215) to form a liquid detergent product (225). Optional process steps
    [0015] With reference to Figure 1, the method may also comprise addition of one or more enzymes (130) to the precursor of unstructured liquid detergent (105) upstream of the microcapsule mixing zone (115) and before the addition of the aqueous paste microcapsules (110) to the precursor (105). After adding the enzymes, the one or more enzymes (130) and the unstructured liquid detergent precursor (105) are mixed in an enzyme mixing zone (135), which is arranged upstream of the microcapsule mixing zone ( 115). Downstream of the enzyme mixing zone (135), one or more auxiliary ingredients can be added. In some examples, one or more auxiliary ingredients are added before (140) the addition of the aqueous microcapsule paste (110). In some examples, one or more auxiliary ingredients are added after (145) the addition of the aqueous microcapsule paste (110), but before the microcapsule mixing zone (115). In additional examples, one or more auxiliary ingredients can be added both before (140) and after (145) the addition of the aqueous microcapsule paste (110). While only two optional injection points 140, 145 are represented in Figure 1, those skilled in the art will appreciate that additional optional injection points can be used and / or optional injection points 140, 145 may be located at other points in the process . The structuring agent (120) is added upstream of a structuring mixing zone (150). After adding the structuring agent (120), the process may comprise mixing the structuring agent (120) with the microcapsule detergent combined in the structuring mixing zone (150) to form the detergent product (125).
    [0016] Similarly, with reference to Figure 2, the method may comprise addition of one or more enzymes (230) to the precursor of unstructured liquid detergent (205) upstream of the opacifier mixing zone (215) and before the addition from the opacifier (210) to the precursor (205). After adding the enzyme, the one or more enzymes (230) and the unstructured liquid detergent precursor (205) are mixed in an enzyme mixing zone (235), which is arranged upstream of the opacifier mixing zone ( 215). Downstream of the enzyme mixing zone (235), one or more auxiliary ingredients can be added. In some examples, one or more auxiliary ingredients are added before (240) the addition of the opacifier (210). In some examples, one or more auxiliary ingredients are added after (245) the addition of the opacifier (210), but before the opacifier mixing zone (215). In additional examples, one or more auxiliary ingredients can be added both before (240) and after (245) the addition of the opacifier (210). While only two optional injection points 240, 245 are represented in Figure 2, those skilled in the art will appreciate that additional optional injection points can be used and / or optional injection points 240, 245 may be located at other points in the process . The structuring agent (220) is added upstream of a structuring mixing zone (250). After adding the structuring agent (220), the process may comprise mixing the structuring agent (220) with the opaque detergent in the structuring mixing zone (250) to form the detergent product (225). Vase
    [0017] The liquid detergent products present are produced by simple mixing methods with the use of a vessel comprising an inlet, an outlet, a stirring device and a mixing zone arranged between the inlet and the outlet. In some examples, the stirring device comprises a mixer. Examples of mixers include, but are not limited to, static mixers and in-line mixers. The stirring device releases an energy input from about 50 J / kg to about 500 J / kg. In some instances, the stirring device releases an energy input from about 100 J / kg to about 400 J / kg. In additional examples, the stirring device releases an energy input from about 50 J / kg to about 300 J / kg. Without sticking to the theory, it is believed that the applicants' energy input range provides enough energy to properly disperse the ingredients.
    [0018] As shown in Figure 3, an inadequate or no mixing energy input in the microcapsule mixing zone can lead to the aggregation of perfume microcapsules after adding perfume microcapsules to the detergent precursor. Without sticking to the theory, it is believed that if the average microcapsule aggregate size is greater than about 100 microns (for example, as shown in Figure 3), the aggregates can become visible to the naked eye in the liquid detergent product ; the liquid detergent product may become less stable, resulting in separation, decantation or foaming over extended periods of time, the number of microcapsules dragged into the tissue can be reduced or distributed unevenly; and aggregated microcapsules can clog pipes and mixers during processing. Figure 4 represents the perfume microcapsules where adequate mixing energy was achieved in the microcapsule mixing zone to completely disperse the microcapsules without fracturing them. As shown, aggregate sizes smaller than about 100 microns have been surprisingly achieved, in some cases smaller than about 50 microns, and in additional instances even zero aggregates (ie, microcapsules found alone, without aggregation) have been achieved. The microcapsules in Figure 4 avoid several of the problems noted above that can arise when microcapsule aggregates become as shown in Figure 3. Consequently, sufficient energy input from the stirring device into the microcapsule mixing zone can be in the range of about 100 J / kg to about 400 J / kg.
    [0019] Similarly, without sticking to the theory, it is believed that insufficient or zero mixing of the opacifier in the mixing zone of the opacifier can lead to the aggregation of the opacifier, which can be seen as white particles that do not disperse completely. It can also create a problem of settling of white particles in the liquid detergent product. In some examples, without sticking to the theory, it is further believed that where a polymer for dirt suspension is added before the opacifier mixing zone, improper mixing in the opacifying mixing zone can lead to the formation of gel particles . White particles and gel particles can aggregate together to form white gel spheres that can end up in the liquid detergent product. In addition, gel spheres can also clog pipes and mixers during processing. Consequently, sufficient energy input from the stirring device into the opacifier mixing zone can be in the range of about 50 J / kg to about 300 J / kg.
    [0020] It is also believed that insufficient or no mixing of the structuring agent in the structuring mixing zone can lead to the formation of gel particles. These gel particles can also aggregate with white particles to form white gel spheres that can be seen in the liquid detergent product, and can clog pipes and mixers during processing. Consequently, sufficient energy input from the stirring device into the structuring mixing zone can be in the range of about 100 J / kg to about 400 J / kg.
    [0021] During its steady state, the average residence time between the addition of the detergent ingredients and the detergent ingredients entering the mixing regions is in the range of about 0.001 to 20 seconds. In some examples, the average residence time between the addition of the detergent ingredients and the detergent ingredients entering the mixing regions is in the range of about 0.001 to 10 seconds. In other examples, when the process is not in the steady state, the average residence time between the addition of the detergent ingredients and the detergent ingredients entering the mixing regions is less than about 60 seconds. Applicants have found that when the average residence time is greater than 60 seconds, white particles, gel particles & gel beads, and agglomeration of microcapsules can become a problem.
    [0022] As shown in Figures 1 & 2, an unstructured liquid detergent precursor (105) is introduced into a vessel (100). The unstructured liquid detergent precursor may comprise from about 0% to about 15%, by weight of the precursor, of water. In some examples, the unstructured liquid detergent precursor may comprise from about 0% to about 7%, by weight of the precursor, of water.
    [0023] The precursor of unstructured liquid detergent can comprise from about 1% to 80%, by weight of the precursor, of a surfactant. In some instances, the unstructured liquid detergent precursor may comprise from about 5% to 65%, by weight of the precursor, of surfactant. In other examples, the unstructured liquid detergent may comprise from about 10% to 50%, by weight of the precursor, of surfactant.
    [0024] The detersive surfactants used can be of anionic, non-ionic, zwiterionic, ampholytic or cationic type, or can include compatible mixtures of these types. In some examples, surfactants are selected from the group consisting of anionic, nonionic and cationic surfactants, as well as mixtures thereof. In other examples, surfactants are selected from the group consisting of anionic and non-ionic surfactants, and mixtures thereof. In additional examples, detergent products are substantially free of betaine-based surfactants. Surfactant detergents used herein are described in US Patents No. 3,664,961, Norris, issued May 23, 1972, No. 3,919,678, Laughlin et al., Issued December 30, 1975, No. 4,222,905, Cockrell, issued September 16, 1980, and No. 4,239,659, Murphy, issued December 16, 1980. Anionic surfactants
    [0025] In some examples, the detergent precursor (105, 205) can comprise from about 1% to about 90%, by weight of the precursor, of one or more anionic surfactants. In other examples, the detergent precursor (105, 205) can comprise up to about 55%, by weight of the precursor, of one or more anionic surfactants. In additional examples, the detergent precursor (105, 205) can comprise from about 15% to about 60%, by weight of the precursor, of one or more anionic surfactants. In still further examples, the detergent precursor (105, 205) can comprise up to about 40%, by weight of the precursor, of one or more anionic surfactants. The liquid detergent product (125, 225) can comprise up to about 45%, by weight of the detergent product, of one or more anionic surfactants. In some examples, the liquid detergent product (125, 225) may comprise up to about 30%, by weight of the detergent product, of one or more anionic surfactants.
    [0026] Some specific examples, non-limiting suitable anionic surfactants include any conventional anionic surfactant typically used in detergent products. This can include a sulfate detersive surfactant, for example, alkoxylated and / or non-alkoxylated alkyl sulfate materials, and / or sulfonic detersive surfactants, for example, alkylbenzenesulfonates.
    [0027] Alkoxylated alkyl sulfate materials comprise surfactants based on ethoxylated alkyl sulphate, also known as alkyl ether sulphates or alkyl polyethoxylate sulphates. Examples of ethoxylated alkyl sulfates include water-soluble salts, particularly the alkali metal, ammonium and alkyl ammonium salts, of organic sulfuric reaction products that have an alkyl group in their molecular structure containing from about 8 to about 30 atoms carbon, and a sulfonic acid and its salts. The term "alkyl" encompasses the alkyl portion of the acyl groups. In some examples, the alkyl group contains from about 15 carbon atoms to about 30 carbon atoms. In other examples, the alkyl ether sulfate surfactant may be a mixture of alkyl ether sulfates, said mixture having an average carbon chain length (arithmetic mean) within the range of about 12 to 30 carbon atoms, and in some examples an average carbon chain length of about 25 carbon atoms, and an average degree of ethoxylation (arithmetic mean) of about 1 mol to 4 moles of ethylene oxide, and in some examples an average degree of ethoxylation (arithmetic mean) ) of 1.8 moles of ethylene oxide. In additional examples, the alkyl ether sulfate surfactant can have a carbon chain length between about 10 carbon atoms and about 18 carbon atoms, and an ethoxylation degree of about 1 to about moles of ethylene oxide.
    [0028] Non-ethoxylated alkyl sulfates can also be added to the detergent precursor compositions presented and used as an anionic surfactant component. Examples of non-alkoxylates, for example, surfactants based on non-ethoxylated alkyl sulfate include those produced by the sulfation of higher C8 to C20 fatty alcohols. In some examples, surfactants based on primary alkyl sulfate have the general formula: ROSO3-M +, where R is typically a linear C8 to C20 hydrocarbyl group, which may be straight or branched, and M is a cation of solubilization in water. In some examples, R is a C10 to C15 alkyl, and M is an alkali metal. In other examples, R is C12 to C14 alkyl and M is sodium.
    [0029] Other useful anionic surfactants may include the alkali metal salts of alkylbenzenesulfonates, in which the alkyl group contains from about 9 to about 15 carbon atoms, in a linear (linear) or branched chain configuration, for example, those of the type described in US Patent Nos. 2,220,099 and 2,477,383. In some examples, the alkyl group is linear. Such linear alkyl benzene sulfonates are known as "LAS". In other examples, linear alkyl benzene sulfonate can have an average number of carbon atoms in the alkyl group of about 11 to 14. In a specific example, straight chain alkyl benzene sulfonates can have an average number of carbon atoms in the group alkyl of about 11.8 carbon atoms, which can be abbreviated as LAS C11.8. These surfactants and their preparation are described, for example, in US patents No. 2,220,099 and 2,477,383.
    [0030] Other anionic surfactants usable here are water-soluble paraffin sulfonates and secondary alkane sulfonates containing from about 8 to about 24 (and in some examples from about 12 to 18) carbon atoms; alkyl glyceryl ether sulfonates, specifically those C8 to C18 alcohol ethers (for example, those derived from tallow and coconut oil). Mixtures of alkylbenzene sulfonates with the paraffin sulfonates described above, secondary alkane sulfonates and alkyl glyceryl ether sulfonates may also be useful. In addition, suitable anionic surfactants usable here can be found in US Patent No. 4,285,841, Barrat et al., Issued on August 25, 1981, and in US Patent No. 3,919,678, Laughlin, et al., Issued on 30 December 1975, both of which are incorporated herein by way of reference. Nonionic surfactants
    [0031] In addition to the anionic surfactant component, the detergent precursor may additionally comprise a non-ionic surfactant. In some examples, the detergent precursor (105, 205) may comprise from about 0.01% to about 30%, by weight of the precursor, of one or more non-ionic surfactants. In additional examples, the liquid detergent precursor (105, 205) may comprise from about 0.1% to about 20%, by weight of the precursor, of one or more non-ionic surfactants. The liquid detergent product (125, 225) can comprise from about 0.01% to about 35%, by weight of the detergent product, of one or more non-ionic surfactants. In some examples, the liquid detergent product (125, 225) may comprise from about 0.01% to about 25%, by weight of the detergent product, of one or more non-ionic surfactants.
    [0032] Suitable non-ionic surfactants usable here can comprise any conventional non-ionic surfactant typically used in liquid and / or solid detergent products. These can include, for example, alkoxylated fatty alcohols and amine oxide surfactants. Preferred for use in the liquid detergent products presented here are the non-ionic surfactants that are normally liquid.
    [0033] In some examples, the detergent precursor may comprise from about 0.01% to about 5%, or from about 0.01% to about 4%, by weight of the surfactant, of an ethoxylated non-ionic surfactant . These materials are described in US Patent No. 4,285,841, Barrat et al, issued on August 25, 1981. The nonionic surfactant can be selected from ethoxylated alcohols and ethoxylated alkyl phenols with the following formula R (OC2H4) nOH , where R is selected from the group consisting of aliphatic hydrocarbon radicals containing from about 8 to about 15 carbon atoms and alkyl phenyl radicals where the alkyl groups contain from about 8 to about 12 carbon atoms, and the average value of n is about 5 to about 15. These surfactants are more fully described in US Patent No. 4,284,532, issued to Leikhim et al, on August 18, 1981. In one example, the surfactant does not ionic is selected from among ethoxylated alcohols that have an average of about 24 carbon atoms in the alcohol and an average degree of ethoxylation of about 9 moles of ethylene oxide per mole of alcohol.
    [0034] Other non-limiting examples of nonionic surfactants used here include: C12-C18 alkyl ethoxylates, such as NEODOL® nonionic surfactants, available from Shell; C6-C12 alkyl phenol alkoxylates, wherein the alkoxylate units are a mixture of oxyethylene and oxypropylene units; C12-C18 alcohol and C6-C12 alkyl phenol condensates with ethylene oxide / oxide block polymers such as Pluronic® from BASF; branched medium chain alcohols C14-C22, BA, as discussed in US 6,150,322; C14C22 alkyl alkoxylates with medium branched chain, BAEx, where x is 1 to 30, as discussed in US 6,153,577, US 6,020,303 and US 6,093,856; alkyl polysaccharides as discussed in US Patent 4,565,647 to Llenado, issued January 26, 1986; specifically alkyl polyglycosides, as discussed in US 4,483,780 and US 4,483,779; polyhydroxy fatty acid amides, as discussed in US 5,332,528, WO 92/06162, WO 93/19146, WO 93/19038, and WO 94/09099; and ether-terminated poly (oxyalkylated) alcohol surfactants, as discussed in US 6,482,994 and WO 01/42408. Combinations of anionic / non-ionic surfactants
    [0035] The detergent precursor may comprise combinations of anionic and non-ionic surfactant materials. When this is the case, in some instances, the ratio of the weight of the anionic surfactant to the weight of the non-ionic surfactant can be at least about 2: 1. In other examples, the ratio of the weight of the anionic surfactant to the weight of the non-ionic surfactant can be at least about 5: 1. In additional examples, the ratio of the weight of the anionic surfactant to the weight of the non-ionic surfactant can be at least about 10: 1. Cationic surfactant
    [0036] The detergent precursor is, in some instances, substantially free of cationic surfactants and surfactants that become cationic below a pH of 7, alternatively below a pH of 6. In other examples, the detergent precursor may comprise surfactants cationic. The cationic surfactant can be present in amounts from about 0.01% to about 5%, or from about 0.01% to about 4%, by weight of the surfactant. Without sticking to the theory, it is believed that cationic surfactants can be used here to provide tissue softening and / or antistatic benefits.
    [0037] Cationic surfactants are well known in the art and examples of these include quaternary ammonium surfactants, which can have up to 26 carbon atoms. Additional examples include a) quaternary ammonium alkoxylate (AQA) surfactants, as discussed in US Patent No. 6,136,769; b) dimethyl hydroxy ethyl quaternary ammonium, as discussed in US Patent No. 6,004,922, c) polyamine cationic surfactants, as discussed in WO 98/35002, WO 98/35003, WO 98/35004, WO 98/35005, and WO 98/35006, which are incorporated herein by way of reference; d) cationic ester surfactants, as discussed in US Patent Nos. 4,228,042, 4,239,660, 4,260,529 and in US Patent 6,022,844, which are incorporated herein by way of reference; and e) amine surfactants, as discussed in US Patent No. 6,221,825 and WO 00/47708, which are incorporated herein by reference, and specifically dimethyl starch propylamine (APA). Useful cationic surfactants also include those described in US Patent No. 4,222,905, Cockrell, issued September 16, 1980, and in US Patent No. 4,239,659, Murphy, granted December 16, 1980, both of which also are incorporated herein by way of reference. Amphoteric surfactant
    [0038] Examples of amphoteric surfactants include: aliphatic derivatives of secondary or tertiary amines, or aliphatic derivatives of secondary or tertiary heterocyclic amines, where the aliphatic radical can be straight or branched. One of the aliphatic substituents contains at least about 8 carbon atoms, typically from about 8 to about 18 carbon atoms, and at least one contains an anionic water solubilizing group, for example carboxy, sulfonate or sulfate. Examples of compounds that fit this definition are sodium 3- (dodecylamino) propionate, sodium 3- (dodecylamino) propane-1-sulfonate, 2- sodium (dodecylamino) ethyl sulfate, 2- (dimethylamino) sodium octadecanoate, 3 - (N-carboxy methyl dodecylamino) propane 1-sodium sulfonate, disodium octadecyl-imminodiacetate, sodium 1-carboxymethyl-2-undecylimidazole, and N, N-bis (2-hydroxy ethyl) -2-sulfate-3-dodecoxy sodium propylamine. See US patent No. 3,929,678, issued to Laughlin et al., On December 30, 1975, in column 19, lines 18 to 35, for examples of amphoteric surfactants. Zwitterionic surfactants
    [0039] Examples of zwitterionic surfactants include: derivatives of secondary and tertiary amines, derivatives of secondary and tertiary heterocyclic amines, or derivatives of quaternary ammonium, quaternary phosphonium or tertiary sulfonium compounds. See US patent No. 3,929,678 issued to Laughlin et al., On December 30, 1975, from column 19, line 38 to column 22, line 48, for examples of zwitterionic surfactants; betaine, including alkyl dimethyl betaine and cocodimethyl starch propyl betaine, C8-C18 (and in some examples C12-C18) amine and sulfo oxides and hydroxy betaines, such as N-alkyl-N, N-dimethyl amino-1-propane sulfonate where the alkyl group may be C8-C18, and in some examples, C10-C14.Other detergent precursor ingredients
    [0040] The detergent precursor described here can also comprise additional ingredients. The exact nature of these additional components and the levels of incorporation of them will depend on the physical form of the composition and the exact nature of the cleaning operation for which it will be used.
    [0041] Additional ingredients can be selected from the group consisting of reinforcing, structuring or thickening agents, clay dirt removal / anti-reposition agents, dirt suspension polymers, polymer dispersing agents, polymeric grease cleaning agents fats, enzymes, enzyme stabilizing systems, bleaching compounds, bleaching agents, bleach activators, bleaching catalysts, brighteners, dyes, tinting agents for fabrics, dye transfer inhibiting agents, chelating agents, foam suppressants, fabric softeners, perfumes, soaps, solvents, antioxidants and pH modifiers.
    [0042] This listing of such ingredients is illustrative only, without limiting the types of ingredients that can be used with the surfactant systems of the present invention. A detailed description of additional components can be found in US Patent No. 6,020,303. Perfume microcapsules
    [0043] As shown in Figure 1, perfume microcapsules (110) can be incorporated into the precursor of unstructured detergent (105). By "perfume microcapsule" is meant, in the present invention, a perfume that is encapsulated in a microcapsule. The perfume microcapsule comprises a core material, which contains at least one perfume, and a wall material, the wrap, which at least partially surrounds the core material.
    [0044] The microcapsule wrap can be characterized by its average particle size, particle size distribution, and thickness of the particle wrap. In some instances, the perfume microcapsule may have an average particle size of 1 micron to 80 microns, from 5 microns to 60 microns, from 10 microns to 50 microns, or even from 15 microns to 25 microns. The particle size distribution can be narrow, wide or multimodal. A certain degree of particle aggregation can occur when microcapsules are introduced into the detergent precursor as shown above in Figures 3 & 4. In some examples, the average particle size of the microcapsule aggregate will be in the range of about 1 μm to about 100 μm , from 5 μm to about 100 μm, or even from about 15 μm to about 100 μm. In other examples, the average particle size of the microcapsule array will be in the range of about 10 μm to about 75 μm. In additional examples, the average particle size of the microcapsule array will be less than about 50 μm. As noted above, the average size of the microcapsule aggregate should be less than about 100 microns, so that the aggregates are not visible to the naked eye in the liquid detergent product; the microcapsules are deposited better and more evenly in the tissue; the liquid detergent product is more stable for extended periods of time, thus avoiding problems with product separation, decanting or foaming; and the microcapsule aggregate does not clog pipes and mixers during processing.
    [0045] The wrap of the microcapsule may have a thickening. In some examples, at least 75%, 85% or even 90% of said microcapsules have a wrap thickness from 60 nm to 250 nm, from 80 nm to 180 nm, or even from 100 nm to 160 nm.
    [0046] The wrapping material can be a resin produced by the reaction product of an aldehyde and an amine. In some examples, aldehydes may include formaldehyde; and amines can include melamine, urea, benzoguanamine, glycoluryl, and mixtures thereof. Exemplary melamines may include methylol melamine, methylated methylol melamine, imino melamine and mixtures thereof. Exemplary ureas may include dimethylol urea, methylated dimethylol urea, urea-resorcinol, and mixtures thereof. These materials can be obtained from one or more of the following companies Solutia Inc. (from St Louis, MO, USA), Cytec Industries (from West Paterson, NJ, USA), Sigma-Aldrich (from St Louis, MO, USA) . In some examples, the microcapsule wrap is produced from the condensation of melamine and formaldehyde.
    [0047] The perfume microcapsule core comprises one or more perfume materials. In some examples, the perfume microcapsule comprises, based on the total particle weight, from 20% to 95%, from 50% to 90%, from 70% to 85%, or even from 80% to 85%, by weight , of a perfume material. The selection of the type or quantity of perfume material is based mainly on aesthetic considerations.
    [0048] Exemplary perfume materials for use in the present invention include materials that provide an olfactory aesthetic benefit and / or help cover any "chemical" odor that the product may have. Consequently, by perfume or perfume material, it is understood that any substance that has the desired olfactory property, which includes all fragrances or perfumes that are commonly used in perfumery or detergent compositions for washing clothes or cleaning products. Such a perfume material can have a natural, semi-synthetic or synthetic original. Perfume materials can be selected from the class of substances comprising hydrocarbons, aldehydes or esters. Perfume materials may also include natural extracts and / or essences, which may comprise complex mixtures of constituents, such as orange oil, lemon oil, rose extract, lavender, musk, patchouli, balm essence, sandalwood oil, oil pine, and cedar oil.
    [0049] The microcapsule core may comprise only perfume material as the only hydrophobic material or, alternatively, the microcapsule core may, in addition to the perfume material, include an additional hydrophobic material in which the perfume material is dissolved or dispersed. Hydrophobic materials, which can be used as a core material in addition to the perfume material, include all types of oils, such as vegetable oils, animal oils, mineral oils, paraffins, chloroparaffins, fluorocarbons, and other synthetic oils.
    [0050] Such material may be selected from the group consisting of vegetable oil, including pure and / or mixed vegetable oils including castor oil, coconut oil, cottonseed oil, grape oil, rapeseed, soybean oil, corn, babassu oil, linseed oil, safflower oil, olive oil, peanut oil, coconut oil, palm kernel oil, castor oil, lemon oil and mixtures thereof; esters of vegetable oils, esters, including dibutyl adipate, dibutyl phthalate, butyl benzyl adipate, octyl benzyl adipate, tricresil phosphate, trioctyl phosphate and mixtures thereof; straight or branched chain hydrocarbons, including those straight or branched chain hydrocarbons that have a boiling point greater than 80 ° C .; partially hydrogenated terphenyls, dialkyl phthalates, biphenyl alkyl, including monoisopropylbiphenyl, alkylated naphthalene, including dipropylnaphthalene, petroleum ethers, including kerosene, mineral oil and mixtures thereof; aromatic solvents, including benzene, toluene and mixtures thereof; silicone oils; and mixtures of these items.
    [0051] Other suitable perfume compounds and compositions can be found in the art including US Patent No. 4,145,184, Brain and Cummins, issued March 20, 1979; US Patent No. 4,209,417, Whyte, issued June 24, 1980; US Patent No. 4,515,705, Moeddel, issued May 7, 1985; and in US Patent No. 4,152,272, Young, issued May 1, 1979.
    [0052] Perfume microcapsules are present in an aqueous fluid paste. The microcapsule slurry may comprise less than about 75% water, alternatively less than 50% water, alternatively less than 42% water, by weight of the microcapsule slurry. The microcapsule slurry can have a viscosity of at least about 300 mPa @ s at 25 ° C. Opacifying
    [0053] As shown in Figure 2, an opacifier (210) can be incorporated into the precursor of unstructured detergent (205). An opacifier is an inert solid compound that does not dissolve in the composition and reflects, spreads or absorbs most wavelengths of light.
    [0054] The opacifier can be selected from the group consisting of styrene / acrylate latex, titanium dioxide, tin dioxide, any forms of modified TiO2, for example, TiO2 modified by carbon or doped metal (for example, metallic doped TiO2 ( for example, platinum, rhodium) or stanic oxide, bismuth oxychloride or TiO2 / mica coated with bismuth oxychloride, TiO2 coated with silica or coated with metal oxide and mixtures thereof. Rohm & Haas Company and sold under the trademark Acusol are used.Lattices can be characterized by a pH of about 2 to about 3, which has approximately 40% solids in water, with a particle size of about 0 , 1 to about 0.5 microns In other examples, Acusol® polymers can be used and included in the Acusol® OP301 (styrene / acrylate) polymer, Acusol® OP302, (styrene / acrylate / divinyl benzene copolymer), Acusol ® OP303 (styrene / acrylamide copolymer), Acusol® OP305 (styrene copolymer / PEG-10 maleate / nonoxynol-10 maleate / acrylate) and (styrene / acrylate / PEG-10 dimaleate copolymer) and mixtures thereof. Polymers can have a molecular weight of 1,000 to 1,000,000, in some examples from 2,000 to 500,000, and in additional examples from 5,000 to 20,000.
    [0055] The opacifier may be present in an amount sufficient to leave the liquid detergent product, to which it is incorporated, white. In cases where the opacifier is an inorganic opacifier (for example, TiO2, or modifications thereof), the opacifier may be present at a level of 0.001% to 1%, in some examples from 0.01% to 0.5% , and in additional examples from 0.05% to 0.15%, by weight of the liquid detergent product. Where the opacifier is an organic opacifier (for example, styrene / acrylate latex), the opacifier can be present at a level of 0.001% to 2.5%, in some examples from 1% to 2.2%, and in examples from 1.4% to 1.8%, by weight of the liquid detergent product. Enzymes
    [0056] As shown in Figures 1 & 2, one or more detersive enzymes (130, 230) that provide benefits of cleaning and / or tissue treatment performance can be incorporated into the precursor of unstructured detergent (105, 205). Examples of suitable enzymes include, but are not limited to, hemicellulases, peroxidases, proteases, cellulases, xylanases, lipases, phospholipases, esterases, cutinases, pectinases, keratanases, reductases, oxidases, phenoloxidases, lipoxygenases, ligninases, pululanases, tannases, tannases , malanases, β-glycanases, arabinosidases, hyaluronidase, chondroitinase, laccase, and known amylases, or combinations thereof. In some examples, an enzyme combination comprising a cocktail of conventional detersive enzymes such as protease, lipase, cutinase and / or cellulase together with amylases is used. Detersive enzymes are described in more detail in US Patent No. 6,579,839.
    [0057] If used, the enzymes will normally be incorporated into the liquid detergent products of the present invention at levels sufficient to provide up to 3 mg, by weight, in some examples, from about 0.0001 mg to about 2.5 mg, of active enzyme per gram of detergent product. In other words, the liquid detergent products of the present invention can typically comprise from 0.001% to 5%, in some examples from 0.005% to 3%, by weight, of a commercial enzyme preparation. The activity of the commercially available enzyme preparation is typically in the range of 10 to 50 mg of active enzyme protein per gram of raw material. Structuring
    [0058] As shown in Figures 1 & 2, a structuring agent (120, 220) is incorporated into the precursor of unstructured detergent (105, 205). Structured liquids can be internally structured, through which the structure is formed by the primary ingredients (for example, surfactant material) and / or externally structured by providing a three-dimensional matrix structure that uses the secondary ingredients (for example, polymers, clay and / or silicate material). The liquid detergent product may comprise from about 0.01% to about 5%, by weight of the detergent product, of a structurant, and in some examples, from about 0.1% to about 2.0%, in terms of weight of the detergent product, of a structuring agent. The structuring agent can be selected from the group consisting of diglycerides and triglycerides, ethylene glycol distearate, microcrystalline cellulose, cellulose-based materials, microfiber cellulose, biopolymers, xanthan gum, gellan gum, and mixtures thereof. In some examples, a suitable structuring agent includes hydrogenated castor / castor oil, and non-ethoxylated derivatives thereof. Other suitable structuring agents are disclosed in US Patent No. 6,855,680. Such structurantes have a filamentary structuring system that has a range of aspect ratios. Additional suitable structures and the processes for their production are described in WO 2010/034736.
    [0059] As shown in Figures 1 & 2, one or more auxiliary ingredients can be added to the detergent precursor (105, 205) at injection points 140, 145, 240, and / or 245. The one or more auxiliary compounds can be selected from the group consisting of: dirt suspension polymers, antioxidants, rheology modifiers, beneficial agents for tissue treatment, deposition aids, reinforcing agents, bleaching systems, optical brighteners, pearlizing agents, perfumes, stabilizing systems enzymes; removing agents, including fixing agents for anionic dyes, complexing agents for anionic surfactants, and mixtures thereof; optical or fluorescent bleaches; polymers for releasing dirt; dispersants; foam suppressors; dyes; colorants; hydrotropes, such as toluenesulfonates, cumenesulfonates and naphthalenesulfonates; splashes of color; colored capsules, spheres or extruded; clay-based softening agents and mixtures thereof. Polymers for dirt suspension
    [0060] The cleaning compositions described herein may also optionally contain water-soluble ethoxylated amines that have dirt-suspending and anti-reposition properties. The composition can contain from about 0.01% to about 8%, by weight of the composition, of a polymer for suspending dirt.
    [0061] An example of a dirt suspension polymer is ethoxylated otetraethylene pentamine. Ethoxylated amines are further described in US Patent No. 4,597,898, issued July 1, 1986. Other polymers for dirt suspension may include the cationic compounds presented in European patent application 111,965, published on June 27, 1984, polymers of ethoxylated amine as presented in European patent application 111,984, published on June 27, 1984; zwitterionic polymers as presented in European patent application 112,592, published on July 4, 1984; and amine oxides, as disclosed in US Patent No. 4,548,744, issued October 22, 1985. Other examples of a dirt suspension polymer may include carboxymethylcellulose (CMC) or propyl methyl cellulose hydroxy (HPMC) materials. Naturally, other suitable dirt suspension polymers that can be used in detergent compositions will be apparent to those skilled in the art in view of the teachings of the present invention. Antioxidant
    [0062] The liquid detergent precursor may contain an antioxidant. In addition, the antioxidant can be added at injection points 140, 145, 240, and / or 245 to the detergent precursor. In some instances, the antioxidant may be present only in the precursor. In other examples, the antioxidant can be added only to the precursor, which is antioxidant-free, through injection points 140, 145, 240, and / or 245. In preferred examples, the antioxidant can be present at the same time in the precursor of detergent and can subsequently be added to the precursor at injection points 140, 145, 240, and / or 245. Although it is not desirable to stick to the theory, Applicants believe that the presence of antioxidant has reduced or, preferably, interrupted the reaction of reactive compounds in the Formula, for example, perfumes, which tend to be oxidized over time and at a higher temperature and which can lead to yellowing.
    [0063] An antioxidant is a molecule capable of slowing or preventing the oxidation of other molecules. Oxidation reactions can produce free radicals, which, in turn, can start degradation chain reactions. Antioxidants interrupt these chain reactions by removing free radical intermediates and inhibiting other oxidation reactions by being oxidized themselves. As a result, antioxidants are often reducing agents. The antioxidant can be selected from the group consisting of butylated hydroxytoluene (BHT), butylated hydroxyanisol (BHA), trimethoxy-benzoic acid (TMBA), α, β, À and δ tocophenol (vitamin E acetate), 6-hydroxy acid 2,5,7,8-tetramethylchroman-2-carboxylic (trolox), 1,2, benzisothiazoline-3-one (GLX proxel), tannic acid, gallic acid, Tinoguard AO-6, Tinoguard TS, ascorbic acid, alkylated phenol , ethoxyquin 2,2,4 trimethyl, 1-2-dihydro quinoline, 2,6 di or tert or butyl hydroquinone, tert, butyl, hydroxyanisole, lignosulfonic acid as well as salts of these substances, benzofuran, benzopyran, tocopherol sorbate, butylated hydroxy benzoic acid as well as salts thereof, gallic acid and the alkyl esters thereof, uric acid, salts thereof and alkyl esters, ascorbic acid as well as salts thereof, dihydroxy fumaric acid as well as salts thereof, and mixtures thereof. In some examples, antioxidants are those selected from the group consisting of alkali sulfites and hydrosulfites and alkaline earth metal, and in additional examples, antioxidants are selected from sodium sulfite, bisulfite or potassium hydrosulfite.
    [0064] The antioxidant may be present at a level of 0.01% to 2%, in some examples from 0.1% to 1%, and in additional examples from 0.3% to 0.5%, by weight of the product liquid detergent. Beneficial agents for tissue treatment
    [0065] Liquid detergent products may comprise an amount of benefit for the treatment of fabrics. For use in the present invention, the term "tissue treatment benefit agent" refers to any material that can provide tissue treatment benefits such as fabric softening, color protection, reduced ball / pile formation, anti-abrasion, anti-wrinkle and similar to garments and fabrics, particularly garments and fabrics made of cotton or with a high proportion of cotton, when an adequate amount of material is present in the garment or fabric. Some non-limiting examples of beneficial agents for tissue treatment include cationic surfactants, silicones, polyolefin waxes, latex, oily sugar derivatives, cationic polysaccharides, polyurethanes, fatty acids and mixtures thereof. Beneficial agents for tissue treatment, when present in the liquid detergent product, are suitably at levels of up to 30%, by weight of the liquid detergent product, in some examples from 1% to 20%, and in additional examples from 2% to 10%. Deposition assistant
    [0066] For use in the present invention, the term "deposition aid" refers to any cationic polymer, or combination of cationic polymers, that significantly accentuates the deposition of a beneficial agent for treatment on the fabric during the washing process with clothes. In some instances, the deposition aid is a cationic or amphoteric polymer. Amphoteric polymers can also have a net cationic charge, that is, the total cationic charges on these polymers will exceed the total anionic charge. Some non-limiting examples of deposition-enhancing agents are cationic polysaccharides, chitosan and their derivatives, and cationic synthetic polymers. Cationic polysaccharides may include cationic cellulose derivatives, cationic guar gum derivatives, chitosan and its derivatives, and cationic starches. Reinforcing agent
    [0067] The liquid detergent precursor can optionally comprise a reinforcing agent. Suitable reinforcing agents include polycarboxylate reinforcing agents include cyclic compounds, particularly alicyclic compounds, such as those described in U.S. patents 3,923,679; 3,835,163; 4,158,635; 4,120,874 and 4,102,903. In some examples, citrate-reinforcing agents, for example, citric acid and soluble salts thereof (particularly sodium salt). In other examples, the reinforcing agents may include ethylenediamine disuccinic acid as well as salts of these substances (ethylenediamine disuccinates, EDDS), ethylenediamine tetraacetic acid as well as salts of these substances (ethylenediamine tetraacetates, EDTA), and diethyl acid triamine penta acetic as well as salts of these substances (diethylene triamine penta acetates, DTPA), aluminosilicates such as zeolite A, B or MAP. Targeting system
    [0068] Bleaching agents suitable for use in the present invention may include chlorine and oxygen bleaching agents, specifically inorganic perhydrate salts such as sodium perborate and sodium percarbonate optionally coated tetrahydrates to provide a controlled release rate (see , for example, GB-A-1466799 in sulphate / carbonate coatings), preformed organic peroxyacids and mixtures thereof, with organic peroxyacid bleach precursors and / or bleach catalysts containing transition metal (specifically manganese or cobalt) . Inorganic perhydrate salts are typically incorporated at levels ranging from 1% to 40% by weight, in some examples from 2% to 30% by weight, and in additional examples from 5% to 25% by weight of the detergent product liquid. Peroxyacid bleach precursors for use in the present invention can include precursors of perbenzoic acid and substituted perbenzoic acid; cationic peroxyacid precursors; precursors of peracetic acid, such as TAED, sodium acetoxy benzene sulfonate and penta acetyl glucose; precursors of pernonanoic acid, such as sodium 3,5,5-trimethyl hexanoyloxybenzene sulfonate (iso-NOBS) and sodium nonanoyloxybenzene sulfonate (NOBS); amide-substituted alkyl peroxyacid precursors (EP-A-0170386); and benzoxazine peroxyacid precursors (EP-A-0332294 and EP-A-0482807). Bleach precursors can be incorporated in levels in the range of 0.5% to 25%, and in some examples from 1% to 10%, by weight of the liquid detergent product, while the preformed organic peroxyacids themselves are typically incorporated in levels in the range of 0.5% to 25%, by weight, and in some examples from 1% to 10%, by weight of the liquid detergent product. Targeting catalysts that can be used in the present invention include manganese triazacyclononane and related complexes (US-A-4246612, US-A-5227084); Co, Cu, Mn and Fe bispyridylamine and related complexes (US-A-5114611); and pentamine (III) cobalt acetate and related complexes (US-A-4810410). Optical Bleaches
    [0069] The liquid detergent precursor may contain an optical bleach. In addition, optical bleaches can be added at injection points 140, 145, 240, and / or 245 to the detergent precursor. In some instances, the optical bleach may be present only in the precursor. In other examples, the optical bleach can be added only to the precursor, which is free from optical bleach, through injection points 140, 145, 240, and / or 245. In preferred examples, the optical bleach can be present at the same time in the detergent precursor and can subsequently be added to the precursor at the injection points 140, 145, 240, and / or 245. These dyes have been found to exhibit good toning efficiency during a wash cycle, without exhibiting excessive accumulation and undesirable during the laundry process. The optical bleach may be included in the total laundry detergent product in an amount sufficient to provide a toning effect to the fabric washed in a solution containing the detergent. In one example, the liquid detergent product comprises, by weight of the liquid detergent product, from 0.0001% to 1%, in some examples from 0.0001% to 0.5%, by weight of the liquid detergent product, and in examples additional 0.0001% to 0.3%, by weight of the liquid detergent product, of an optical bleach.
    [0070] Suitable optical bleaches, which can be used here, can be classified into subgroups, which include, but are not necessarily limited to, stilbene derivatives, pyrazoline, coumarin, carboxylic acid, methinocyanine, dibenzotifene-5.5-dioxide, azoles , heterocycles with 5- and 6-element rings, and other varied agents. Examples of such bleaches are presented in "The Production and Application of Fluorescent Brightening Agents", M. Zahradnik, John Wiley & Sons, New York, USA (1982). Specific non-limiting examples of optical bleaches that are useful in current detergent products are those identified in US Patent No. 4,790,856 and in US Patent No. 3,646,015. Pearlizing agent
    [0071] The liquid detergent product may comprise a pearlescent amount. The pearling agent can be organic or inorganic, but is preferably inorganic. In some examples, the pearlizing agent is selected from mica, mica coated with TiO2, bismuth oxychloride or mixtures thereof. perfume
    [0072] Perfumes can be incorporated into the liquid detergent product in addition to the perfume microcapsules. Perfumes can be prepared as a liquid premix, and can be bonded by a carrier material, such as cyclodextrin. Other auxiliary compounds
    [0073] Examples of other suitable cleaning aid materials include, but are not limited to; enzyme stabilizing systems; removing agents, including fixing agents for anionic dyes, complexing agents for anionic surfactants, and mixtures thereof; optical or fluorescent bleaches; polymers for releasing dirt; dispersants; foam suppressors; dyes; colorants; hydrotropes, such as toluenesulfonates, cumenesulfonates and naphthalenesulfonates; splashes of color; colored capsules, spheres or extruded; clay-based softening agents and mixtures thereof. Liquid detergent product
    [0074] The liquid detergent product (125, 225) resulting from the processes presented here can comprise a final water content of about 5% to about 15%, by weight of the product. In some examples, the final water content can be from about 5% to about 10%. Small wrapper / small wrapper material
    [0075] The liquid detergent products presented can be incorporated into a small water-soluble wrapper. In some instances, liquid detergent products may be incorporated into a small, water-soluble, multi-compartment wrapper.
    [0076] Small wrappers can be produced from a skin material that is soluble or dispersible in water, and has a solubility in water of at least 50%, in some examples at least 75%, or in additional examples of the same minus 95%. Water solubility is measured by the method determined here after using a glass filter with a maximum pore size of 20 microns: 50 grams ± 0.1 gram of the small wrapping material is added to a pre-weighed 400 ml beaker and 245 ml ± 1 ml of distilled water is added. This is shaken vigorously on a magnetic stirrer set at 600 rpm for 30 minutes. The mixture is then filtered through a qualitative folded sintered glass filter, with pore size as defined above (max. 20 microns). The water is dried from the collected filtrate by any conventional method, and the weight of the remaining material (which is the dissolved or dispersed fraction) is determined. The percentage solubility or dispersibility can then be calculated.
    [0077] Suitable small wrap materials may include, but are not limited to, polymeric materials. In some examples, polymers are formed into a film or foil. Small shell material, for example, can be obtained by casting, blow molding, extrusion or blow extrusion of the polymeric material, as known in the art.
    [0078] Other polymers, copolymers or derivatives of these substances suitable for use as small shell material can be selected from polyvinyl alcohols, polyvinylpyrrolidone, polyalkylene oxides, acrylamide, acrylic acid, cellulose, cellulose ethers, cellulose esters, cellulose amides, polyvinyl acetates, polycarboxylic acids and salts, polyamino acids or peptides, polyamides, polyacrylamide, maleic / acrylic acid copolymers, polysaccharides including starch and gelatin, natural gums such as xanthan and carrageenan. In some instances, polymers are selected from water-soluble polyacrylates and acrylate copolymers, methylcellulose, sodium methyl cellulose carboxy, dextrin, ethylcellulose, ethyl cellulose hydroxypropyl methylcellulose, maltodextrin, polymethacrylates, and, with the utmost preference, and among the most preferred, polyvinyls, copolymers of polyvinyl alcohol and hydroxy propyl methyl cellulose (HPMC), and combinations thereof. The level of polymers in the small shell material, for example, a PVA polymer, can be at least 60%. The polymer can have any average molecular weight of 1,000 to 1,000,000, in some examples 10,000 to 300,000, and in additional examples 20,000 to 150,000.
    [0079] Mixtures of polymers can also be used as the small shell material. This can be advantageous for controlling the mechanical and / or dissolving properties of the compartments or the small enclosure, depending on their application and the needs to be met. Suitable mixtures include, for example, mixtures in which one polymer has a higher water solubility than that of the other polymer, and / or one polymer has a higher mechanical strength than that of another polymer. Mixtures of polymers having different average weight molecular weights are also suitable, for example, a mixture of PVA or a copolymer of the same having an average molecular weight of 10,000 to 40,000, in some examples an average molecular weight of about 20,000, and PVA or a copolymer thereof, with an average molecular weight of 100,000 to 300,000, in some examples an average molecular weight of about 150,000. Also suitable for use in the present invention are polymeric blend compositions, which comprise, for example, hydrolytically degradable and water-soluble polymeric blends such as polylactide and polyvinyl alcohol, obtained by mixing polylactide and polyvinyl alcohol, typically comprising from 1-35 % by weight of polylactide and 65% to 99% by weight of polyvinyl alcohol. In some examples, polymers for use in the present invention are 60% to 98% hydrolyzed, and in additional examples from 80% to 90% hydrolyzed, to optimize the dissolution characteristics of the material.
    [0080] It will be obvious according to the person skilled in the art, bearing in mind the teachings of the present invention, that different film materials and / or films of different thickness can be employed in the production of compartments of the present invention. A benefit of selecting different films is such that the resulting compartments can exhibit different characteristics of solubility or release.
    [0081] The small wrap material of the present invention may comprise one or more additional ingredients. For example, it may be beneficial to add plasticizers, for example, glycerol, ethylene glycol, diethylene glycol, propylene glycol, sorbitol and mixtures of these substances. Other additives include functional detergent additives to be applied to the wash water, for example, organic polymeric dispersants, etc.
    [0082] For reasons of deformability, small enclosures or small enclosure compartments containing a component that is liquid will preferably contain an air bubble that has a volume of up to 50%, alternatively up to 40%, alternatively up to 30%, alternatively up to 20%, alternatively up to 10% of the volume space of said compartment. Process for the production of the small water-soluble casing
    [0083] The process for producing the small water-soluble wrapper can be done using any suitable equipment and method. Small single compartment shells can be produced using the vertical or horizontal filling techniques of common knowledge in the state of the art.
    [0084] The process for the manufacture of a small water-soluble casing has already been described in documents EP1504994 (Procter & Gamble Company) and WO 02/40351 (Procter & Gamble Company). The process for the manufacture of a small water-soluble multi-compartment casing has already been described in copending patent application 09161692.0, filed in June 2009 (Procter & Gamble Company).
    [0085] The dimensions and values presented in the present invention should not be understood as being strictly limited to the exact numerical values mentioned. Instead, unless otherwise specified, each of these dimensions is intended to mean both the mentioned value and a range of functionally equivalent values around that value. For example, a dimension displayed as "40 mm" is intended to mean "about 40 mm".
    [0086] All documents cited in the Detailed Description are, in the relevant part, incorporated herein, by way of reference, the citation of any document should not be interpreted as admitting that it represents prior art with respect to the present invention. If any meaning or definition of a term in this document conflicts with any meaning or definition of the same term in an incorporated document, as a reference, the meaning or definition of that term in this document will take precedence.
    [0087] Although specific embodiments of the present invention have been illustrated and described, it should be obvious to those skilled in the art that various other changes and modifications can be made without departing from the character and scope of the invention. Therefore, it is intended to cover in the appended claims all such changes and modifications that fall within the scope of the present invention.
    权利要求:
    Claims (13)
    [0001]
    1. Method for producing a liquid detergent product using a vessel comprising an inlet, an outlet, a stirring device, and a microcapsule mixing zone arranged between the inlet and outlet, in which the stirring device is in the microcapsule mixing zone, characterized by the fact that it comprises: a) introduction of an unstructured liquid detergent precursor at the entrance of the vessel, and said unstructured liquid detergent precursor comprises from 10% to 90%, in weight of the precursor, of a surfactant and from 0% to 15%, by weight of the precursor, of water; b) mixing with the stirring device an aqueous slurry comprising perfume microcapsules and the unstructured liquid detergent precursor in the microcapsule mixing zone to form a combined microcapsule detergent, where the microcapsule slurry has a viscosity of at least 300 mPa ^ s at 25 ° C, and where the stirring device is a mixer static; c) adding a structuring agent comprising hydrogenated castor / castor oil to the microcapsule detergent combined downstream of the microcapsule mixing zone to form a liquid detergent product; and where the liquid detergent product has an average microcapsule aggregate particle size of less than 75μm.
    [0002]
    2. Method according to claim 1, characterized in that the aqueous slurry is released to the precursor of unstructured liquid detergent to a location in the vessel upstream of the microcapsule mixing zone.
    [0003]
    Method according to claim 1, characterized by the fact that the structuring agent is added to the combined microcapsule detergent upstream of a structuring mixing zone.
    [0004]
    4. Method according to claim 3, characterized by the fact that the structuring agent and the combined microcapsule detergent are mixed in the structuring mixing zone.
    [0005]
    5. Method according to claim 1, characterized by the fact that it additionally comprises before step b) addition of an enzyme to the precursor of unstructured liquid detergent upstream of the microcapsule mixing zone.
    [0006]
    6. Method according to claim 5, characterized by the fact that the enzyme and the unstructured liquid detergent precursor are mixed in an enzyme mixing zone arranged upstream of the microcapsule mixing zone.
    [0007]
    7. Method according to claim 1, characterized by the fact that the static mixer that releases an energy input from 50 J / kg to 500 J / kg.
    [0008]
    8. Method, according to claim 1, characterized by the fact that the microcapsules have an average particle size from 15μm to 25μm.
    [0009]
    9. Method according to claim 1, characterized by the fact that the liquid detergent product has an average microcapsule aggregate particle size of less than 50μm.
    [0010]
    10. Method, according to claim 1, characterized by the fact that the method further comprises adding one or more adjuvants upstream of the microcapsule mixing zone, in which the one or more adjuvants are selected from the group consisting of: suspension dirt, antioxidants, rheology modifiers, beneficial agents for tissue treatment, deposition aids, reinforcing agents, bleaching systems, optical brighteners, pearlizing agents, perfumes, enzymes, enzyme stabilizing systems; removing agents, complexing agents for anionic surfactants, fluorescents; polymers for releasing dirt; dispersants; foam suppressors; dyes; colorants; hydrotropes, such as toluenesulfonates, cumenesulfonates and naphthalenesulfonates; splashes of color; colored capsules, spheres or extruded; clay-based softening agents and mixtures thereof.
    [0011]
    11. Method according to claim 1, characterized by the fact that the unstructured liquid detergent precursor further comprises reinforcing, structuring or thickening agents, clay dirt removal / anti-reposition agents, dirt suspension polymers, polymer dispersing agents , polymeric grease cleaning agents fats, enzymes, enzyme stabilizing systems, bleaching compounds, bleaching agents, bleach activators, bleaching catalysts, brighteners, dyes, fabric tinting agents, dye transfer inhibitors, agents chelators, foam suppressants, fabric softeners, perfumes and mixtures thereof.
    [0012]
    12. Method according to claim 1, characterized by the fact that the structuring agent also comprises diglycerides, triglycerides other than hydrogenated castor oil, ethylene glycol distearate, microcrystalline cellulose, cellulose-based materials, microfiber cellulose, biopolymers , xanthan gum, gellan gum, or mixtures thereof.
    [0013]
    13. Method, according to claim 1, characterized by the fact that the opacifier is incorporated into the precursor of unstructured detergent, in which the opacifier is selected from the group consisting of: styrene / acrylate latex, titanium dioxide, dioxide tin, modified TiO2, stanic oxide, bismuth oxychloride or TiO2 / mica coated with bismuth oxychloride, TiO2 coated with silica or metal, and mixtures thereof.
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    同族专利:
    公开号 | 公开日
    CA2864196A1|2013-09-06|
    EP2820114A2|2015-01-07|
    ZA201404858B|2016-08-31|
    WO2013128431A3|2014-03-13|
    ES2609129T3|2017-04-18|
    AU2013205431B2|2015-05-28|
    US20140371127A1|2014-12-18|
    PL2820114T3|2017-04-28|
    CN104245911A|2014-12-24|
    RU2559316C2|2015-08-10|
    MX2014010079A|2017-07-10|
    CA2864196C|2017-01-24|
    HUE032974T2|2017-12-28|
    AR090154A1|2014-10-22|
    MY164936A|2018-02-15|
    JP5964462B2|2016-08-03|
    IN2014DN06096A|2015-08-14|
    AU2013205431A1|2013-09-12|
    US8853142B2|2014-10-07|
    US9856444B2|2018-01-02|
    US20130225468A1|2013-08-29|
    RU2013120144A|2014-11-10|
    CN104245911B|2017-06-30|
    WO2013128431A2|2013-09-06|
    EP2820114B1|2016-10-19|
    JP2015513581A|2015-05-14|
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    法律状态:
    2018-03-06| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-09-10| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-03-23| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-04-27| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 23/04/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US13/405,694|US8853142B2|2012-02-27|2012-02-27|Methods for producing liquid detergent products|
    US13/405,694|2012-02-27|
    PCT/IB2013/053214|WO2013128431A2|2012-02-27|2013-04-23|Methods for producing liquid detergent products|
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