• 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:
    Further improvements of the ink introduced in the main patent p201431444 relative to an ink with non-slip and/or metallic effect for digital ceramic printing on glass and method of use. The composition of the effect ink (20) contains solvent, metalizing and/or anti-skid particles of between 20 μm and 100 μm and a reagent. Said solvent in a percentage of between 50% and 70% by weight, said solvent comprising between 70% and 90% by weight of a mixture of glycol ethers and between 3% and 30% by weight of a mixture of binders said particles with anti-skid and/or metalizing effect in a percentage of between 10% and 20% by weight, said particles comprising a particle size of between 20 and 100 microns, and said particles consisting of ground mineral and/or metallizing pigments. Said reagent in a percentage between 10% and 20% by weight with the same frit as the inkjet printing ink and particle size lower than that of the particles with anti-slip and/or metallizing effect. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2626073A1
    申请号:ES201630067
    申请日:2016-01-21
    公开日:2017-07-21
    发明作者:Juan Javier FERNANDEZ VAZQUEZ；Manuel RAMOS QUIROGA
    申请人:Tecglass SL；
    IPC主号:
    专利说明:

    ADDITIONAL IMPROVEMENTS OF THE INK INTRODUCED IN THE MAIN PATENT P201431444 CONCERNING AN INK WITH ANTI-SLIDING AND / OR METALLIZED EFFECT FOR CERAMIC DIGITAL PRINTING ON GLASS AND USE PROCEDURE 5

    OBJECT OF THE INVENTION

    The object of the present invention is an improvement of the ink object of the main patent 10 P201431444.

    The object of the present invention is in the state of the art of digital printing with ceramic inkjet ink on glass. The ink object of the present invention is applied, according to a method, on a glass or glass sheet in such a way as to provide anti-slip and / or metallized effects.

    BACKGROUND OF THE INVENTION 20

    The inks currently used for digital ceramic printing on glass contain very fine ground pigments (1 μm) and refractory ceramics to withstand the high tempering temperatures of glass 25 ranging from 650 ° C to 700 ° C. The ceramic pigment is a calcined mixture of coloring oxides (iron, copper, chromium, manganese, cobalt, nickel, tin, titanium, etc.). These pigments are stable at high temperatures and do not melt in the glass. This ink 30 deposited on the glass needs a very fine ground glass frit to encapsulate and protect the pigment after cooking during the tempering process (it is a kind of, simplifying, ground glass to a very fine size of about one μm). This glass frit when subjected to high temperature melts and encapsulates the pigment leaving it protected in this way.

    At present, in order to apply digitally on the stained glass with anti-slip property and metallic effect, the ink incorporates in its own formulation 10 as a component particles that offer said property and effect. For example, to achieve a non-slip effect, a percentage of ground quartz is applied in the ink formula so that when the frit melts, the quartz remains highly refractory in nature (it does not melt at those temperatures) providing a rough effect. This procedure has a drawback for use in digital printing, since said quartz particles must be smaller than 5 μm in order to be injected 20 with injection heads that offer the required resolution.

    Therefore, from an operational point of view, it follows that the use of inks with these particles (for example quartz) that provide specific effects has two main drawbacks:

    - Since the particle size is limited, the power of the desired effect is limited to a great extent, since as an example for a class 3 non-slip finish according to UNE-ENV 12633: 2003 Annex A, particles of at minus 20 μm, and this size may be difficult or impossible to inject.

    - When using the same machine for standard prints and for prints with effect, a change of the ink in the nozzles of the machine is required when moving from a normal printing operation to an effective printing operation. This is because the normal printing ink does not contain the particles with effect and when you want to go to a production with effect another ink has to be put into machine with the component. This forced change of ink in the machine entails a great expense of time and waste of material. In addition, each time the ink is changed, the injection head 15 must be washed with solvent and the new ink placed. An alternative would be to add an extra head or nozzles, some with normal ink and others with ink with effect, but this increases the cost of the machine and if the ink with effect 20 is not frequently used, maintenance costs can be increased.

    The main patent P201431444, to which the present invention is additional, overcomes the traditional disadvantages, described above, with an effect ink containing particles of up to 100 µm to provide the desired properties and effects, and a method for its application.

    Said ink with effect has in its composition a solvent, metallizing and / or non-slip particles that provide the desired effect / properties, and a reagent. Ideally, the composition by weight is between 50% and 70% solvent, between 10% and 20% metallizing and / or non-slip particles, and between 10% and 20% reagent.

    As for the procedure for its application, first of all, this ink is applied with effect on the glass to be decorated by any of the traditional methods of printing known (hand-painted gun, roller or screen printing). That is to say, this ink with effect is applied to all (preferably) the surface 10 of the glass so that there is no need for any template or special equipment.

    Then, the glass with the ink with applied effect is passed through the digital printer that will print, 15 on the face of the glass where the ink with effect has been applied, a motif or drawing with a standard inkjet ceramic printing ink that is already found in the machine as usual. Therefore, the desired pattern or pattern is printed on the ink layer with a previously applied effect on the entire surface of the glass.

    Subsequently, the glass is taken to the tempering or baking oven to melt and fix the printing ink in the same way as in the current state of the art process. The printing ink is vitrified and with non-slip property and metallic effect provided by the effect ink.
     30
    In the end, the glass is washed with any traditional method of glass washing, preferably with water, and as a consequence, in the spaces of the glass surface where the digital printer did not print, the ink with effect that was initially applied is detached from the glass leaving those spaces completely clean (except in the area where the printing ink was applied). 5

    Thus, the ink with effect is fixed on the part of the glass that was printed with the printing ink and will remain providing a non-slip or metallic effect, and with an intensity much higher than that obtained by applying a digital ink.

    The reagent / additive of the ink with effect is fused with the ceramic printing ink. Thus, an anchor is produced in the digitally printed ceramic print ink 15 deposited on the ink with effect. However, as explained, where there is no ceramic printing ink deposited on top of the effective ink, the latter can be washed without the washing affecting the deposited ceramic printing ink or the glass structure or its appearance.

    The solvent of the ink with effect allows to apply the ink with any of the traditional methods of application, that is, it acts as a vehicle. 25

    DESCRIPTION OF THE INVENTION

    The ink object of the present invention overcomes the disadvantages of the prior art described above, and constitutes an improvement over the ink and method of use object of the main patent P201431444.

    Further research and development work by the applicant for the main patent P201431444
    (after the application of the main patent P201431444) they allow to optimize the composition of the ink to maximize the advantages pursued by the main patent.

    In particular, the composition of the ink with optimized effect object of the present invention is the following in terms of its solvent, particles with effect and reagent:

    - Solvent, or medium, in a percentage of between 50% and 70% by weight in the ink with optimized effect composed of:

    o Between 70% and 90% by weight of a mixture of glycol ethers.
     twenty
    o Between 3% and 30% by weight of a mixture of binders.

    - Particles with a non-slip or metallic effect of between 10% and 20% by weight in the ink with optimized effect:

    o In case of looking for a non-slip effect: ground particles with a particle size between 20 μm and 100 μm and with characteristics similar to those of quartz or corundum.

    o In the case of looking for a metallic effect: metallic pigments with a particle size between 20 μm and 100 μm are used.

    - Reagent between 10% and 20% by weight with essentially the same frit that is used in ceramic digital printing inkjet ink but with a particle size between 10 μm and 100 μm; in such a way that, with this small percentage of reagent (and therefore of frit) and its large size of 10 particles, the optimized ink alone does not fix to the glass since the percentage of frit as well as its size or encapsulate The non-slip and / or metallizing particles do not even melt during the tempering process. However, when this percentage of frit in the optimized ink reagent is mixed with the frit provided by the inkjet ink, which is in a percentage of between 25-35% and a particle size between 0.1 and 3 microns , it melts completely (when the 20 fusion properties of both frits are added) and encapsulates the non-slip and / or metallizing particles so that where the printer prints the inkjet ink on the optimized ink that is fixed to the glass in the cooking process; and where the printer does not provide inkjet ink, the optimized ink with effect is washed (removed) perfectly.

    The object of the main patent P201431444 30 executed with the optimized ink object of the present invention is also object of the present invention.



    BRIEF DESCRIPTION OF THE DRAWINGS

    The following figures are included in order to facilitate the understanding of the invention:

    - Figures 1-A and 1-B: state of the art prior to the main patent P201431444 of ceramic printing with specific properties with a graph of the 10 proportions of the components to be deposited during ceramic printing in Figure 1-B; and, side view of a detail of a sheet of glass treated according to the state of the art in Figure 1-A. fifteen

    - Figures 2-A, 2-B, 2-C and 2-D: top views of a glass sheet to be treated with the optimized effect ink object of the present invention and in each of the stages of the patent procedure Main 20 P201431444. Figure 2-A before being treated; Figure 2-B after application of the optimized ink object of the present invention on the sheet of Figure 2-A; Figure 2-C after applying motifs with inkjet ink applied 25 by digital ceramic printing on the sheet of Figure 2-B; and, Figure 2-D after washing the sheet of Figure 2-C with water.

    - Figure 3: bottom view of the glass sheet of Figure 2-D.





    PREFERRED EMBODIMENT OF THE INVENTION 5

    A preferred embodiment of the present invention is detailed below.

    First, the state of the art of ceramic printing on glass is described with the obtaining with specific effects and / or properties prior to the main patent P201431444: a graph showing the proportion of components used in Figure 1-B is shown An embodiment of the current state of the art of a process for obtaining on a glass sheet (1), such as that of Figure 1-A, of a motif with anti-slip properties and metallic effect by printing with ceramic ink with pigments (2) mixed, and added a frit (3) 20 on said glass sheet (1). Figure 1-A shows a detail of the side view of the screen-printed glass (1) with the pigments (2) and the encapsulator frit (3).
     25
    Figure 2-A shows a glass sheet (1) to which an optimized ink with effect (20) is applied on its entire surface as described below, thus obtaining the glass sheet of Figure 2- B. Figure 2-B shows the glass sheet (1) and 30 with its entire surface covered with said ink optimized with effect (20). The glass sheet (1), in Figure 2-B, is passed through a digital printer to print a motif with inkjet ink (30) or ceramic inkjet printing, on the ink layer with effect (20), thus obtaining the glass sheet of Figure 2-C. The glass sheet (1) of Figure 2-C is taken to a tempering furnace and subsequently washed with water to obtain the sheet of Figure 2-D in which the motif screen printed with inkjet ink (30) is observed. ) vitrified and with non-slip property and metallic effect, and without ink with visible effect. However, from the bottom of the glass sheet (1), as seen in Figure 3, the ink with effect (20) that is covered by the printing ink is observed.

    The components of a preferred embodiment of the ink with optimized effect object of the present invention are detailed below:

    - Solvent, or medium, in a percentage of between 50% and 70% by weight in the ink with optimized effect composed in turn of:
     twenty
    o Between 70% and 90% by weight of a mixture of glycol ethers: dipropylene glycol methyl ether (DPM) and triripropylene glycol methyl ether (TPM).
     25
    o Between 3% and 30% by weight of a mixture of binders: hydroethylcellulose (HEC), hydropropylcellulose (HPC) and acrylic resins.

    - Particles with a non-slip or metallic effect of 30 between 10% and 20% by weight in the ink with optimized effect:

    o In case of looking for a non-slip effect: quartz particles, or alternatively corundum, ground to a particle size between 20 μm and 100 μm.
     5
    o In the case of looking for a metallic effect: gold, silver or copper metallizing pigments, all of them commercial and with a particle size between 20 μm and 100 μm.
     10
    - Reagent between 10% and 20% by weight with essentially the same frit used in printing inkjet ink but with a particle size between 10 μm and 100 μm.
    fifteen
    权利要求:
    Claims (4)
    [1]

    1. Ink with effect (20) at least non-slip and / or metallized for ceramic digital printing on 5 glass (1) of inkjet ink, of the type comprising a solvent, particles with metallizing and / or non-slip effect of up to 100 μm and a reagent, characterized by comprising:
     10
    - between 50% and 70% of said solvent by weight, said solvent comprising between 70% and 90% by weight of a mixture of glycol ethers and between 3% and 30% by weight of a mixture of binders ,
     fifteen
    - between 10% and 20% by weight of said particles with metallizing and / or anti-slip effect, said particles comprising a particle size between 20 μm and 100 μm, and said particles consisting of ground ore 20 and / or metallizing pigments , Y
    - between 10% and 20% of said reagent by weight, said reagent comprising a frit as used in said inkjet ink and with a particle size between 10 μm and 100 μm.

    [2]
    2. Effect ink (20) according to the preceding claim, characterized in that said ground mineral consists of quartz or corundum, and said binders 30 consist of hydroethylcellulose and hydropropylcellulose.

    [3]
    3. Procedure for ceramic digital printing on glass (1), of the type comprising at least the following stages:
     5
    - apply on said glass (1) an ink with effect (20),
    - print inkjet printing ink (30) creating a pattern on said glass (1) on the side where said ink has been applied with effect,
    - temper or cook the glass (1) in an oven, and
    - wash the glass sheet (1), 15
    characterized in that said effect ink (20) is the ink of any one of claims 1 to 2.
     twenty
    [4]
    4. Digital ceramic printing process on glass (1), according to the preceding claim, characterized in that said step of washing the glass sheet (1) is performed with water.
     25

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    同族专利:
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    引用文献:
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    US20050051051A1|2001-01-16|2005-03-10|Boaz Nitzan|Pretreatment liquid for water-based ink printing applications|
    WO2003006394A1|2001-07-13|2003-01-23|Lesepidado Srl|Method to decorate glassy surfaces with an ink-jet printer|
    WO2014001315A1|2012-06-28|2014-01-03|Colorobbia España, S.A.|Method for obtaining optical interference effects by means of digital ink-jet technique|
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