• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Laminate for forming a ribbon or a loop web, in particular the comfort web of a diaper, comprises: - at least one nonwoven layer, having a lower face and an upper face, opposite to the lower face, - the at least one ink layer applied to the upper face of the at least one nonwoven layer; and at least one outer textile layer from which, on the outer side, loops intended to cooperate with hooks of a hook-and-loop self-gripping device come into being, the at least one textile layer being fixed on the upper face of the at least one nonwoven layer, characterized in that the nonwoven and / or the ink are chosen so that the ink penetrates at least part of the nonwoven layer.
    公开号:FR3019492A1
    申请号:FR1400849
    申请日:2014-04-08
    公开日:2015-10-09
    发明作者:Nathalie Moinard；Thierry Jacques Marche
    申请人:Aplix SA；
    IPC主号:
    专利说明:

    [0001] TECHNICAL FIELD The present invention relates to a laminate-shaped sheet or loop to form the loops part of a hook-and-loop hook-and-loop fastener, in particular for diaper layers and in particular to form a strip arranged in the front part of the diaper, at the waist in the central position, a band conventionally called "landing zone", to allow the closure of the waistband of the diaper by hooking hooks from legs arranged in parts of lateral ends of the rear part of the diaper. The present invention also relates to an element comprising at least one nonwoven layer on an outer face of which at least one layer of ink has been applied, a textile layer with loops being intended to be fixed on said outer face of the at least one nonwoven layer. BACKGROUND OF THE INVENTION Laminated webs or ribbons of this type are already known in the prior art, comprising a textile layer made of nonwoven forming a support on an outer face of which is deposited in succession a layer of ink for forming patterns, for example decorative, and then an outer textile layer in the form of a knit having loops for cooperating with hooks, the knit-shaped outer layer being attached to the backing layer and / or to the ink layer via a layer of glue.
    [0002] Since the knit fabric is of low density, it shows from the outside the patterns formed by the ink layer between the knit and the nonwoven backing layer. These laminates of the prior art have several disadvantages. On the one hand, they are complicated to manufacture, which limits the possibility of manufacturing them on a large scale and at low cost, characteristics particularly sought after in the field of disposable diapers 10 where the production rates can exceed 1000 layers / min. . In particular, the ink has a tendency to contaminate the conveyor rolls of the ribbons, resulting in their rapid clogging and the need to have them cleaned with a high frequency, which clearly limits the production speed of the product. In addition, the bonding of the knit is made difficult by the presence of the ink layer. On the other hand, these laminates of the prior art have an unfortunate tendency to delaminate during use, especially when repeatedly opening and closing a diaper. OBJECT AND SUMMARY OF THE INVENTION The present invention aims to overcome the drawbacks of the prior art, by providing a laminate forming a web or loop tape of a self-gripping system with hooks and loops, in particular for a diaper, which while ensuring good visibility of the printed patterns or patterns of the laminate, can be manufactured at high speed and resists delamination in use, especially during repeated cycles of openings and closures of a diaper. According to the invention, a laminate for forming a ribbon or loop web, in particular the comfort web of a diaper, comprises: at least one nonwoven layer, having a lower face and an upper face, opposite to the lower face, at least one layer of ink applied to the upper face of the at least one nonwoven layer; and at least one outer textile layer from which, on the outer side, loops intended to cooperate with hooks of a hook-and-loop self-gripping device come into being, the at least one textile layer being fixed on the upper face of the at least one non-woven layer is characterized in that the nonwoven and / or the ink are chosen so that the ink penetrates at least partly into the nonwoven layer, the amount of ink at the outside the at least one layer of nonwoven being less than the amount of ink inside the at least one layer of nonwoven, including the amount of ink outside the above at least a nonwoven layer being substantially zero and substantially all of the ink being within the at least one nonwoven layer. By thus providing for selecting the nonwoven and / or the ink so that the ink forming the printing layer of the decorative patterns is at least partly received within the nonwoven layer. preferably there is substantially completely received, significantly improves the manufacturing speed of the laminate and its resistance to delamination. Indeed, the ink is now, for the most part, preferably all, received inside the nonwoven support, it no longer interferes with the process of fixing the upper textile element, for example with gluing. This also results in the new possibility of using during this fixing process a welding step, even though in the prior art, this type of process was impossible because of the presence of the ink layer. Fixing is thus simplified because it is no longer necessary to provide complex adhesives to be adapted for attachment to an ink layer. In addition, the ink is no longer liable to contaminate the conveyor rolls, thus sparing the downtime necessary for cleaning them. In addition, the attachment of the upper textile element is improved, in particular by the now existing possibility of using the weld, especially calendering, so that the laminate is less likely to delaminate, especially as a "landing zone" (or "comfort band") for a diaper. Preferably, the entire ink layer is received in the at least one nonwoven layer and is flush with the top surface of the at least one nonwoven layer. According to a preferred embodiment of the invention, the attachment of the at least one textile outer layer 30 loops to the at least one layer of nonwoven forming a support is made by welding.
    [0003] Preferably, this welding is performed without adding material, in particular by thermal and / or mechanical calendering or ultrasonic welding. According to one embodiment of the invention, the at least one outer loop fabric layer is a knit. According to another particularly favorable embodiment, the at least one outer looped textile layer is a nonwoven, especially a consolidated carded nonwoven, more particularly a calendered and / or hydrolized carded nonwoven or the like. According to yet another favorable embodiment, the looped textile layer consists of a cluster of unconsolidated fibers or filaments in a non-woven layer. According to one embodiment, a major portion of the ink is received in the at least one but not all but one support nonwoven layer, and the remaining minor portion of the ink is received in the nonwoven 20 or cluster of fibers or filaments forming the at least one looped textile layer, so that there is no ink present between the looped nonwoven and the support nonwoven, particularly in a fastening zone from the nonwoven layer to the outer loop fabric layer. According to an advantageous improvement, there are provided means for blocking the migration of the ink in the at least one nonwoven layer to maintain it in the upper part of the nonwoven, in particular flush with the outer face of the nonwoven, and thus ensure good visibility of the ink from the outside, or from above.
    [0004] In particular, according to an advantageous embodiment, the at least one nonwoven layer comprises at least two layers stacked one on the other, an upper layer, on the outer side, favoring migration therein. ink decorative patterns of the printing layer to thereby receive the ink, and a lower layer, on the inner side, less favorable to the migration of this ink and in particular a layer blocking the migration of the ink to form the means of blocking the migration of the ink.
    [0005] According to a particularly favorable embodiment, the at least one nonwoven layer consists of a Spunbond upper layer and a Meltblown lower blocking layer, thereby forming a nonwoven SM (Spunbond-Meltblown). the thickness of the Spunbond layer being sufficient to allow the migration of substantially all of the ink layer within it before it is stopped by the Meltblown-type layer, the nonwoven being in particular an SMS, an SMMS , SSMMS and the like.
    [0006] According to a preferred embodiment, the laminate is devoid of or substantially free of ink on its outer and inner faces when the test of the adhesive tape (defined below) is performed on these two sides.
    [0007] The present invention also relates to a nonwoven element comprising at least one nonwoven layer on an upper face of which has been applied at least one ink layer in the form of patterns to be seen from above, at least one layer outer textile, from which, on the outer side, protruding buckles intended to cooperate with hooks of a hook-and-loop self-gripping device are intended to be fixed on the upper face of the at least one layer of nonwoven for thus forming a sheet or ribbon in the form of a laminate, in particular to form the "comfort zone" or "landing zone" of a diaper, characterized in that the at least one nonwoven layer and / or the ink are chosen so that the ink penetrates at least part of the non-woven layer, the amount of ink outside the top of the at least one non-woven layer being less than the amount of ink within the at least one layer of nonwoven material, in particular the amount of ink on the outside above the at least one nonwoven layer being substantially zero and substantially all of the ink at inside the at least one nonwoven layer.
    [0008] According to a preferred embodiment, the nonwoven element has no or substantially no ink on its outer and inner faces when the test of the adhesive tape (defined below) is performed on these two faces.
    [0009] Preferably, the layer of nonwoven support (SMS for example) has, especially before calendering with the external textile layer with loops (calendered carded for example), an air permeability greater than 1000 1 / m2 / s, preferably higher than The present invention also relates to a panty layer incorporating a laminate according to the invention, especially in the central part of the front part, at the waist to form the "landing zone" or "strip". comfort ". BRIEF DESCRIPTION OF THE DRAWINGS By way of example, preferred embodiments of the invention will now be described with reference to the drawings, in which: FIG. 1 is a diagrammatic sectional view of a first embodiment of FIG. a laminate according to the invention comprising, as a looped textile element, a knit, the bond being made by calendering; FIG. 2 is a diagrammatic sectional view of a second embodiment of the invention in which the looped textile element is a nonwoven, in particular consolidated carded, the connection being made by calendering; FIG. 3 is a sectional view of yet another embodiment of the invention made with a knit-shaped textile element, the connection being made by a layer of glue; Figure 4 is a schematic sectional view of yet another embodiment comprising, as a textile element a nonwoven, including calendered carded, the connection being made by a layer of glue; FIG. 5 diagrammatically shows in perspective a diaper incorporating in its front part, at the central level of the belt, a laminate for forming the landing zone, this laminate possibly being any of those described in the present application as being invention; Figure 6 is a schematic side view of an installation for the manufacture of a laminate according to the invention, in particular for the manufacture of a laminate according to Figure 2; FIG. 7A is the top view of a sample of a printed SMS nonwoven used, according to one embodiment of the invention, as the nonwoven layer forming a support, before the application of the web adhesive for the so-called adhesive tape test; Figure 7B is the top view of the sample of Figure 7A after application and removal of the adhesive tape; Fig. 7C is the top view of the adhesive strip after it has been applied to and removed from the sample; FIG. 8A is the top view (that is to say the side of the loops, or the consolidated card) of a sample of a laminate comprising the printed SMS nonwoven of FIG. 7A and a calendered carded nonwoven on the SMS, Figure 8B is the top view of the SMS alone of the sample of Figure 8A, after delamination of the calendered card; and Figure 8C is the top view of the carded alone after it has been removed by delaminating the SMS from the sample. DETAILED DESCRIPTION OF EMBODIMENTS To close a diaper C temporarily, a hook and loop device is used. In general, the loops are disposed on the front part of the waistband of the diaper, while side tabs with hooks protrude from the back part of the waistband to hook into the loops of the front part. However, one could predict the opposite, by arranging loops in the lateral parts and hooks in the front part.
    [0010] To achieve the loop part, and in particular in the front part called comfort band, using a ribbon-shaped laminate comprising at least a support layer of a nonwoven and a loop element. The nonwoven layer has an inner face intended to be on the inner side, that is to say on the wearer's side of the diaper, in particular by being fixed thereto, while the outer layer is on the opposite side, that is to say on the outside with respect to the wearer of the diaper. This outer face is intended to be covered by a textile element having loops. Generally speaking, in the present application, the term "upper" means the outer side of an element and the lower the inner side of an element. The outer side is the side where the loops are and by which the hooks are hooked to the loops. The fixing of the two layers (namely the nonwoven support and the looped textile element) of the laminate is carried out for example by gluing. However, it can instead provide a weld, including mechanical calendering and / or thermal or ultrasound. However, prior to sizing or welding, there is applied to the outer face of the nonwoven a layer of printing ink for forming patterns or patterns. In Figure 1, there is shown a first embodiment of the invention. The non-woven support layer 1 (which may in itself form a portion of the diaper) has an upper region 2, which is on the outer side of the support layer 1. This layer 2 is made of a material in which the ink of a printing layer 3 applied to the support layer 1 has migrated to be incorporated substantially completely, flush with the upper or outer surface of the nonwoven 1. Thus, the ink layer 3 no longer interferes with the process of fixing a textile element carrying the loops.
    [0011] In Figure 1, this looped textile element consists of a loop knit 4. The looped knit 4 is calendared to the outside of the nonwoven 1. Since the ink has fully migrated into the nonwoven 1, it does not interfere with the calendering process, which can thus be easily implemented. In addition, it is no longer necessary to provide either inks or complex glues and expensive, or both, allowing gluing despite the presence of ink. In order to prevent the layer 3 of ink from penetrating to the bottom of the non-woven fabric 1, it is intended to produce the nonwoven in the form of several superimposed layers, in particular with an intermediate anti-migration layer in which the The ink has no faculty or has only low migration abilities with respect to the upper or outer layer in which it has significant migration abilities. Thus, as shown in FIG. 1, the ink layer is stopped by the intermediate layer which is of structure and / or of material different from the upper layer 2. In particular, the ability of a non-woven ink-layer couple to integrate the ink into the nonwoven layer can be defined by the following test of the adhesive tape: 1. A sample consisting of less a nonwoven layer on which ink has been applied. In particular, the sample may be in the form of a strip 10 cm long and 3 cm wide; 2. It is placed on a flat support under normal conditions of temperature and pressure (25 ° C and 1 atm); 3. A Scotch® adhesive tape is deposited without pressure on one side of the sample, for example a Scotch (trade mark) of the 3M company referenced 313, preferably manufactured for less than three months, leaving free a gripping area; 4. Then apply, at constant speed (about 20cm / s), over the entire width of the adhesive tape of the sample and in one go a pressure with a roller applicator 2kg and a width of 49mm so as to press the adhesive tape onto the sample 5. The adhesive tape is then pulled to separate it from the sample (approximately 40 cm / s, with a pulling angle of approximately 50 °). This step is validated if the loops or, in general, the sample do not show any tearing or rupture in the thickness, or even of defibrillation. The area of the adhesive that has been in contact with the printed areas is then visually checked. of the sample to evaluate the amount of ink that has been transferred from the sample to the adhesive tape in particular to note the absence or presence of ink on the adhesive tape. 7. Next, the apparent surface of the ink pattern (s) S appearing on the surface of the sample to which the adhesive tape has been applied and the apparent surface S 'of the pattern (s) formed by the ink on the adhesive tape and the ratio S '/ S is calculated as a percentage giving a measure of integration of the ink to the nonwoven, a large percentage corresponding to a low integration and a small percentage corresponding to a good integration . This test can be performed both on the outside of the nonwoven or the laminate and on its opposite inner side of the nonwoven or laminate. For example, according to the invention, the expression "the laminate or the nonwoven element is devoid of or substantially free of ink" is understood to mean a laminate or a nonwoven element for which there is obtained in the present test a ratio lower than 10%, preferably less than 5%, even more preferably less than 1%, for example less than 0.5%. In order to calculate the apparent surfaces S and S ', the following can be done in particular: 1. The adhesive strip comprising ink patterns is positioned on a sheet of paper, for example a sheet of white paper, because the color of the nonwoven support, 21x29,7mm and 80g / m2, so that the ink is trapped between the sheet of paper and the adhesive tape. 2. The sample is positioned on the sheet of paper at a position close to the adhesive tape with ink, so that the patterns are oriented away from the sheet of paper. 3. A new adhesive tape is applied to the sample so that it is attached to the sheet and the patterns are completely covered with the new adhesive tape. 4. Two zones (of identical shapes and dimensions) are drawn on the sheet so that they are respectively centered on the one or more of the patterns of the adhesive strip comprising ink and on the other hand the one or more sample patterns 5. digitize (in black and white or color) high definition eg 600x600PPP (number of dots per inch or DPI for dots per inch in English), the sheet of paper so that the sample and adhesive tape can be processed numerically. 6. the apparent surfaces of the area comprising the adhesive with the ink are calculated and the area comprises the sample covered with the second adhesive strip by digital processing using specialized software, for example "ImageJ". 7. transforming the digitized image (ie the area comprising the adhesive tape with the ink and the area comprising the sample) so that it has only two types of pixels, a black pixel or a pixel White. 8. The number of black pixels is counted to determine the apparent surfaces S and S '. In the case where the user observes an absence of ink to the naked eye on the adhesive tape, it is considered that the surface S 'is zero and that all of the ink has migrated into the nonwoven. For the acquisition and processing of the image, one could also use a Cognex brand digital vision system, model "insight vision system 7000" and the dedicated processing software "Easybuilder" (registered trademark). upper layer 2 having a good integration of the ink (above ratio equal to a small percentage), and an intermediate layer having a low integration (ratio above equal to a high percentage). As seen in Figure 1, the ink 3 has ceased to migrate to the bottom of the nonwoven because of the intermediate blocking layer 5, we always see from the outside the patterns. At the same time, the ink layer does not interfere with the attachment of the knit. In addition, calendering being without material input, it does not participate in the opacity of the laminate, and in particular does not participate in reducing the visibility of patterns printed through the knit 4. This gives a particularly fast laminate system to manufacture, which is resistant to delamination and has good visibility of printed patterns.
    [0012] In Figure 2, there is shown another embodiment, wherein the looped textile element is a nonwoven 4 ', preferably calendered carded. The nonwoven 1 support is identical to that of the embodiment shown in Figure 1. The ink layer 3 has not fully migrated within the nonwoven 1 support. Although a major part, especially greater than 70%, especially greater than 90%, preferably greater than or equal to 95% of the ink layer is within the nonwoven 1 support, a part of the layer of ink did not migrate into the non woven backing. On the other hand, this remaining part of the ink layer has migrated into the nonwoven 4 ', so that between the nonwoven 4' with loops and the nonwoven 1 support, there is no ink or substantially no ink present may interfere with the process of mutual attachment of the two nonwoven. This process can thus be carried out by calendering, without the addition of material, which favors a good visibility of the patterns defined by the layer of ink through the nonwoven 4 'carded calendered. In FIG. 8A, there is shown a sample of a laminate corresponding to the embodiment of FIG. 2, the printed support nonwoven consisting of an SMS, while the loop nonwoven is a calendered carded nonwoven. More particularly, the layer of nonwoven support (SMS for example) has, before calendering with the external textile layer with loops (calendered carded) an air permeability greater than 1000 l / m 2 / s, preferably greater than 1700 l / l. m2 / s measured according to the European standard and the French standard NF EN ISO 9237 Textiles "determination of the air permeability of fabrics" with a pressure indicator or manometer of 200Pa. More particularly, the laminate has an air permeability greater than 500 l / m 2 / s, preferably greater than 2400 l / m 2 / s measured according to the European standard and the French standard NF EN ISO 9237 Textiles "determination of permeability air cloths with a pressure gauge or gauge of 200Pa.
    [0013] A hand separation (delamination) was performed and on the one hand obtained the SMS nonwoven shown in Figure 8B in top view and the calendered nonwoven card shown in Figure 8C. As can be seen in FIG. 8C, ink is present on the delaminated calendered card, mainly in the former soldering zones of the SMS non-woven card. Figures 3 and 4, there is shown embodiments respectively identical to those of Figures 1 and 2, wherein the attachment of the two elements respectively support and loop is performed by a layer 6 of glue, instead of calendering. In the present application, the term "nonwoven" means a product obtained at the end of the formation of a sheet of fibers and / or filaments which have been consolidated. The consolidation may be mechanical, chemical or thermal and results in the presence of bond between the fibers and / or the filaments. This consolidation can be direct, that is to say made directly between the fibers and / or filaments by welding, or it can be indirect, that is to say via an intermediate layer between the fibers. and / or the filaments, for example an adhesive layer or a binder layer. The term nonwoven refers to a ribbon-like structure or web of fibers and / or filaments that are intertwined in a non-uniform, irregular or random manner. A nonwoven may have a single layer structure or a multilayer structure. A nonwoven may also be joined to another material to form a laminate. A nonwoven can be made from different synthetic and / or natural materials. Exemplary natural materials are cellulose fibers, such as cotton, jute or paper pulp, flax and the like, and may also include re-treated cellulose fibers, such as rayon or viscose. Natural fibers for a nonwoven material can be prepared using various methods such as carding. Exemplary synthetic materials include, but are not limited to, synthetic thermoplastic polymers, which are known to form fibers which include, but are not limited to, polyolefins, for example, polyethylene, polypropylene, polybutylene, and the like. similar ; polyamide, for example polyamide 6, polyamide 6.6, polyamide 10, polyamide 12 and the like; polyesters, for example polyethylenes teraphthalates, polybutylene terephthalates, polylactic acids and the like, polycarbonates, polystyrenes, thermoplastic elastomers, polymeric vinyls, polyurethanes and mixtures and co-polymers thereof. To achieve the welding, between the textile element and the nonwoven support, one can achieve the following connection patterns of all shapes, for example continuous, discontinuous, shaped wave, etc. This binding pattern can be achieved using heat, pressure, ultrasound, or combinations thereof. For example, and preferentially, a nonwoven may be bonded by passing the nonwoven web through a gap formed by a heated calendering roll having a bonding etch and another roll, so that islands of engraving form bonding areas on the nonwoven ribbon. This description and definition of the nonwoven apply both to the nonwoven forming a support, and nonwoven for the loop material. To deposit the ink layer, any conventional method may be used, including flexography, ink jet printing, rotogravure, screen printing, photogravure, and the like. The print can be single color or multiple colors. Preferably the ink is a non-adhesive ink, i.e., an ink which is not capable of providing sufficient bonding between the looped textile element and the support nonwoven. An ink consists of a mixture of three components: a coloring material, in particular a pigment or a dye; a vehicle forming the fluid phase of the ink, for example a mixture of polymers, diluents and / or solvent or water; and additives, such as dispersing agents, antifoam etc. to optimize the characteristics of the ink.
    [0014] As a mixture of polymers, mixtures of up to 50% of various acetates, such as ethyl acetate, N-propyl acetate, iso-propyl acetate, N-butyl acetate, and mixtures thereof can be used, for example up to 50%. at 10% alcohol. Organic or inorganic pigments, for example, disazo dyes, anthraquinone, xanthene, azine and the like dyes, titanium dioxide, carbon black, iron oxides, chromium oxide and the like can be used. FIGS. 7A and 7B show top views respectively of a sample of a non-woven layer consisting of a printed SMS, respectively before application of the strip of adhesive to perform the test of the adhesive strip and after application and removal of the adhesive tape. In Figure 7C, there is shown the top view of the adhesive strip applied and removed from the sample of Figure 7A. As can be seen in particular in FIGS. 7A to 7C, only a small percentage of the ink has not been integrated into the SMS nonwoven and appears on the inside of the adhesive strip. The ratio of the printing surface on the adhesive tape to that of the nonwoven is of the order of 1.5% according to the method described above. Hereinafter, an illustration of the invention is given, by way of nonlimiting illustration, of an example of pairs of non-woven support-ink or trinomial non-woven support - non-woven loop ink according to the invention. EXAMPLE As a non-woven support, an SMS with a weight per unit area equal to 13 g / m 2, whose filaments of the Spunbond layers have a mean diameter equal to 15 micrometers and the filaments of the Meltblown layer have an average diameter of 6 micrometers, while the ink consists of a mixture of a nitrocellulose resin (1%), polyacetate (12%), ethanol (47%) and pigments (5%). The test of the adhesive tape is then applied and a printed surface ratio of 1.54% is found. In FIG. 6 there is shown a block diagram of an installation for the manufacture of a laminate according to FIG. This installation represents online both the printing of the SMS and calendering of the calendered card on the printed SMS. As an alternative embodiment, it could be envisaged to separate the two manufacturing steps. According to the example shown in FIG. 6, the roll R1 is arranged so as to unroll the unprinted SMS so that it is printed by the rollers RB, the rollers RA serving to impart tension in the SMS . The printed SMS ink is then dried, in particular at least a portion of the vehicle forming the fluid phase of the ink is evaporated by suitable means not shown. The roller R2 is arranged so that the calendered card is unrolled so that the calendered card and the printed SMS are linked by thermal calendering by the rollers R3 (one of which comprises an etching) to form the laminate according to the invention. . The roller R4 is arranged to wind the laminate obtained. According to the present invention, the term "loop" refers to a filament and / or a fiber which comprises two ends each integral with the support at a respective point of the support or at a same point of the support. A loop may also be formed of several filaments or fibers secured together and at least two of which are secured to the support, at a point or at two respective distinct points. Loop nonwoven means a nonwoven making loops after bonding to the support. In general, the fibers and filaments differ mainly in their length and in their manufacturing process. Filaments are understood to mean the unitary elements, of very great length with respect to the diameter in which their section is inscribed, continuously extruded to form directly a nonwoven web which can then be consolidated by thermo-bonding or any other way to achieve desired performance and / or transportation. Preferably, the filaments have a length greater than 120mm. Fiber is understood to mean the generic term for a textile material or a textile material element of reduced length, less than the length of the filaments, and capable of being spun and / or used in the production of nonwovens. There are two types of fibers, short fibers made of discontinuous material of short length less than 70 mm (preferably 25 mm to 60 mm) and long fibers discontinuously formed of greater length than 70 mm (preferably 80 mm to 80 mm). 120 mm). Unlike filaments which are consolidated directly after being extruded, the fibers are oriented and organized into webs during a carding step well known to those skilled in the art. This sheet can then be consolidated by thermo-bonding or any other means to achieve the desired performance and / or transport. 20
    权利要求:
    Claims (15)
    [0001]
    REVENDICATIONS1. A laminate for forming a ribbon or loop web, particularly the comfort web of a panty layer, comprises: at least one layer of nonwoven, having a lower face and an upper face, opposite to the face lower, at least one layer of ink applied to the upper face of the at least one nonwoven layer; and - at least one outer textile layer (4) from which, on the outer side, hooks intended to cooperate with hooks of a self-gripping device with hooks and loops project, the at least one textile layer being fixed on the upper face of the at least one nonwoven layer, characterized in that the nonwoven (1) and / or the ink (3) 20 are chosen so that the ink penetrates at least partly into the non-woven layer. woven, the amount of ink on the outside over the at least one layer of nonwoven being less than the amount of ink within the at least one layer of nonwoven, including the amount of ink outside on top of the at least one nonwoven layer being substantially zero and substantially all of the ink within the at least one nonwoven layer.
    [0002]
    2. Laminate according to claim 1, characterized in that the entire layer (3) of ink is received in the at least one nonwoven layer and is flush with the upper surface of the at least one layer (1) of nonwoven.
    [0003]
    3. Laminate according to claim 1 or 2, characterized in that the fixing of the at least one layer (4) external textile loops to the at least one layer (1) of nonwoven forming a support is made by welding.
    [0004]
    4. Laminate according to claim 3, characterized in that this welding is carried out without adding material, in particular by thermal and / or mechanical calendering or ultrasonic welding.
    [0005]
    5. Laminate according to one of claims 1 to 4, characterized in that the at least one outer loop fabric layer is a knit.
    [0006]
    6. Laminate according to one of claims 1 to 4, characterized in that the at least one outer textile layer with loops is a nonwoven, in particular a consolidated carded nonwoven, especially a calendered nonwoven carded.
    [0007]
    7. Laminate according to one of claims 1 to 4, characterized in that the at least one looped textile layer consists of a cluster of non-consolidated fibers or filaments 25.
    [0008]
    8. Laminate according to one of claims 6 or 7, characterized in that a major part of the ink is in the at least one layer of nonwoven forming support, but not all, and the remaining minor portion of the ink is received in the nonwoven or pile of fibers or filaments forming the at least one looped textile layer, so that there is no ink present between the looped nonwoven and the nonwoven forming a support.
    [0009]
    9. Laminate according to one of claims 1 to 8, characterized in that there is provided means (5) for blocking the migration of the ink in the at least one layer of nonwoven to maintain it in the upper part nonwoven, especially flush with the outer face of the nonwoven, and thus ensure good visibility of the ink from the outer side, or from above.
    [0010]
    10. Laminate according to one of claims 1 to 9, characterized in that the at least one layer of nonwoven comprises at least two layers stacked one on the other, an upper layer on the outer side, promoting the migration therein of the ink of the decorative patterns of the printing layer to thereby receive the ink, and a lower layer, on the inner side, less favorable to the migration of this ink and in particular a layer blocking the migration of the ink. ink for forming the means for blocking the migration of the ink.
    [0011]
    11. Laminate according to claim 10, characterized in that the at least one nonwoven layer consists of a Spunbond upper layer and a lower Meltblown type blocking layer, thereby forming a nonwoven SM ( Spunbond-Meltblown) the thickness of the Spunbond layer being sufficient to allow the migration of substantially all of the ink layer within it before it is stopped by the Meltblown type layer, the nonwoven being in particular an SMS , SMMS, SSMMS and the like.
    [0012]
    12. Non-woven element comprising at least one layer of non-woven material on an upper face of which at least one layer of ink in the form of patterns intended to be seen from above has been applied, at least one outer textile layer, of which protruding, on the outer side, loops intended to cooperate with hooks of a hook-and-loop self-gripping device, being intended to be fixed on the upper face of the at least one non-woven layer so as to form a sheet or a laminated ribbon, in particular for forming the "comfort zone" or "landing zone" of a diaper, characterized in that the at least one nonwoven layer and / or the ink are chosen so that the ink penetrates at least partially into the nonwoven layer, the amount of ink on the outside over the at least one layer of nonwoven being less than the amount of ink within the at least one layer of no woven fabric, especially the amount of ink on the outside above the at least one nonwoven layer being substantially zero and substantially all of the ink within the at least one nonwoven layer .
    [0013]
    13. Element according to claim 12, characterized in that the nonwoven element is free or substantially free of ink on its outer and inner faces when the test of the adhesive tape is carried out on these two sides.
    [0014]
    14. Element according to claim 12 or 13, characterized in that the layer of nonwoven support 5 has a permeability to air greater than 1000 1 / m2 / s, preferably greater than 1700 1 / m2 / s.
    [0015]
    15. A panty layer comprising a laminate according to one of the preceding claims.
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    同族专利:
    公开号 | 公开日
    WO2015155152A1|2015-10-15|
    CN106132373A|2016-11-16|
    KR20160142832A|2016-12-13|
    RU2016143337A|2018-05-08|
    US20170112690A1|2017-04-27|
    JP2017512923A|2017-05-25|
    US10813801B2|2020-10-27|
    MX2016013061A|2017-02-15|
    JP6730192B2|2020-07-29|
    FR3019492B1|2016-04-01|
    RU2016143337A3|2018-09-28|
    EP3128982A1|2017-02-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20080102725A1|2006-11-01|2008-05-01|Martin Patrick Lacey|Multi-layer nonwoven having a printed layer and products made therefrom|
    US8092895B2|2007-06-01|2012-01-10|Nordenia Deutschland Gronau Gmbh|Loop tape for hook/eye fastener|
    JP2013121428A|2011-12-09|2013-06-20|Unicharm Corp|Absorbent article|
    US7805818B2|2001-09-05|2010-10-05|The Procter & Gamble Company|Nonwoven loop member for a mechanical fastener|
    KR100709966B1|2004-07-24|2007-04-25|주식회사 한진피앤씨|Nonwoven loop sheet and the manufacture method|
    CN101631905A|2007-03-12|2010-01-20|纳幕尔杜邦公司|Nonwoven printing medium|
    US8895111B2|2007-03-14|2014-11-25|Kimberly-Clark Worldwide, Inc.|Substrates having improved ink adhesion and oil crockfastness|
    US7790264B2|2007-04-17|2010-09-07|Aplix, Inc.|Loop material for loop and hook type fastener used in a disposable article or garment|
    EP2145555B1|2008-07-17|2010-08-25|Nordenia Technologies GmbH|Compound material element for a hook-and-loop fastener, in particular for a nappy closure|
    DE102008059512A1|2008-11-28|2010-06-10|Nordenia Deutschland Gronau Gmbh|Composite element for a Velcro closure|CN106436025B|2016-07-15|2019-03-15|厦门和洁无纺布制品有限公司|A kind of non-woven fabric coiled material with printed patterns|
    JP6564356B2|2016-11-25|2019-08-21|大王製紙株式会社|Tape type disposable diaper|
    CN108189508A|2018-02-28|2018-06-22|潍坊迅纺新材料科技有限公司|Paper diaper material and preparation method thereof|
    CN112223761A|2020-08-28|2021-01-15|余新军|Preparation process of hot-pressed woven tape|
    法律状态:
    2015-02-20| PLFP| Fee payment|Year of fee payment: 2 |
    2015-10-09| EXTE| Extension to a french territory|Extension state: PF |
    2016-02-05| PLFP| Fee payment|Year of fee payment: 3 |
    2017-04-25| PLFP| Fee payment|Year of fee payment: 4 |
    2018-04-23| PLFP| Fee payment|Year of fee payment: 5 |
    2019-04-23| PLFP| Fee payment|Year of fee payment: 6 |
    2020-04-20| PLFP| Fee payment|Year of fee payment: 7 |
    2021-04-21| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1400849A|FR3019492B1|2014-04-08|2014-04-08|LAMINATE-SHAPED BAND OR RIBBON HAVING PRINTED PATTERNS|FR1400849A| FR3019492B1|2014-04-08|2014-04-08|LAMINATE-SHAPED BAND OR RIBBON HAVING PRINTED PATTERNS|
    MX2016013061A| MX2016013061A|2014-04-08|2015-04-07|Strip or lap comprising loops, in the form of a laminate with printed patterns.|
    KR1020167027536A| KR20160142832A|2014-04-08|2015-04-07|Strip or lap comprising loops, in the form of a laminate with printed patterns|
    JP2016561640A| JP6730192B2|2014-04-08|2015-04-07|Strips or wraps with loops in the form of laminates with printed patterns|
    EP15713773.8A| EP3128982A1|2014-04-08|2015-04-07|Strip or lap comprising loops, in the form of a laminate with printed patterns|
    CN201580016052.0A| CN106132373A|2014-04-08|2015-04-07|Form is the band including looped pile or the lamination of the layered product of band printed patterns|
    RU2016143337A| RU2016143337A3|2014-04-08|2015-04-07|
    PCT/EP2015/057443| WO2015155152A1|2014-04-08|2015-04-07|Strip or lap comprising loops, in the form of a laminate with printed patterns|
    US15/129,073| US10813801B2|2014-04-08|2015-04-07|Strip or lap comprising loops, in the form of a laminate with printed patterns|
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