• 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:
    Ink with effect (20) at least non-slip and/or metallic for ceramic digital printing on glass (1) and procedure of use. The ink with effect (20) is applied on the surface of a glass sheet (1), then a pattern is printed on a digital printing machine with ceramic ink (30) inkjet on the face in which it has been printed. Applied the ink with effect, then the sheet is vitrified in an oven, and finally subjected to a wash to eliminate the ink with effect (20) on which no printing ink was deposited (30). The ink with effect (20) has in its solvent composition, metalizing and/or anti-skid particles of up to 100 μm and a reagent. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2565520A1
    申请号:ES201431444
    申请日:2014-10-01
    公开日:2016-04-05
    发明作者:Juan Javier FERNÁNDEZ VÁZQUEZ；Manuel RAMOS QUIROGA
    申请人:Tecglass SL；
    IPC主号:
    专利说明:


    INK WITH ANTI-SLIP AND / OR METALIZED EFFECT FOR CERAMIC DIGITAL PRINTING ON GLASS AND USE PROCEDURE
     5

    OBJECT OF THE INVENTION

    The object of the present invention is in the state of the art of digital printing with inkjet ceramic ink 10 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 that it provides anti-slip and / or metallized effects.
     fifteen

    BACKGROUND OF THE INVENTION

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

    At present, to apply digitally on the 5 red glasses with non-slip property and metallic effect, the ink incorporates in its own formulation 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 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 with injection heads that offer the required resolution.
     twenty
    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:
     25
    - Since the particle size is limited, the power of the effect to be obtained is limited to a great extent since, by way of example, for a class 3 non-slip finish according to UNE-ENV 12633: 2003 Annex A, particles of at least 20 μm, and 30 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 effect printing operation. This is due to the fact that the normal printing ink does not contain the effect particles and when you want to switch to an effective production, another ink must be placed in the machine with the component. This forced change of ink in the machine entails a great expense of time 10 and waste of material. In addition, every time you change ink you have to wash the injection head with solvent and place the new ink. 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 is not used frequently, maintenance costs can be increased.

     twenty
    DESCRIPTION OF THE INVENTION

    In order to overcome the drawbacks of the current state of the art, an effect ink (object of the present printing) containing particles up to 25 100 μm is developed to provide the desired properties and effects, and a procedure for its application.

    Said ink with effect has in its composition a solvent, metallizing and / or non-slip particles 30 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, this ink is applied with effect on the glass to be decorated by any of the traditional methods of printing known (hand-painted, roller or screen-printed gun). That is, this ink with effect is applied to the entire (preferably) surface 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, on the face of the glass where the ink 15 has been applied with effect, 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 cooked oven to melt and fix the printing ink in the same way as in the process of the current state of the art. The printing ink is vitrified and with non-slip property and metallic effect provided by the effect ink.

    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 released of the glass leaving those spaces completely clean (except in the area where the printing ink was applied).
     5
    Thus, the effect ink 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 a much higher intensity than that obtained by applying a digital ink. 10

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

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

    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: current state of the art of ceramic printing with specific properties with a graph of the proportions of the components to be deposited during ceramic printing in Figure 1-B; and, side view of a detail of a sheet of 5 glass treated according to the state of the art in Figure 1-A.

    - Figures 2-A, 2-B, 2-C and 2-D: top views of a glass sheet to be treated with the effect ink 10 object of the present invention and in each of the steps of the process of the present invention. Figure 2-A before being treated; Figure 2-B after application of the effect ink object of the present invention on the sheet of Figure 2-A; 15 Figure 2-C after applying motifs with ceramic inkjet ink applied by digital printing on the sheet of Figure 2-B; and, Figure 2-D after washing the sheet of Figure 2-C.
     twenty
    -Figure 3: bottom view of the glass sheet of Figure 2-D.


     25
    PREFERRED EMBODIMENT OF THE INVENTION

    A preferred embodiment of the present invention and its operation, which is to be understood in a broad and non-limiting sense, is detailed below. In the first place, the current state of the ceramic printing technique on glass is also described with the obtaining of specific effects and / or properties.

    Figure 1-B shows a graph with the proportion of components used in 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 mixed pigments (2), and adding a frit (3) on said glass sheet (1). Figure 1-A shows a detail of the side view of the screen-printed glass 10 (1) with the pigments (2) and the encapsulation frit (3).

    Figure 2-A shows a glass sheet (1) to which an effect ink (20) is applied on its entire surface that has a weight composition of between 50% and 70% of a solvent, between 10% and 20% of metallizing and non-slip particles, and between 10% and 20% of reagent, thus obtaining the glass sheet of Figure 2-B. Figure 2-B shows the glass sheet (1) already with its entire surface covered with said ink with effect (20).

    The glass sheet (1) in Figure 2-B is passed through a digital printer to print a motif with 25 inkjet printing ink (30) on the effect ink layer (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 the printing ink ( 30) vitrified and with non-slip property and metallic effect, and without visible effect ink. However, from the bottom of the glass sheet (1), as seen in Figure 3, the effect ink (20) that is covered by the printing ink is observed.



     10




     fifteen

    权利要求:
    Claims (5)
    [1]

    1. Ink with effect (20) at least non-slip and / or metallized for ceramic digital printing on 5 glass (1), characterized by comprising a solvent, metallizing and / or non-slip particles
    up to 100 μm and a reagent.

    [2]
    2. Effect ink (20) according to claim 10, characterized in that it comprises between 50% and 70% of said solvent, between 10% and 20% of said metallizing and / or non-slip particles, and between 10% and 20% of said reagent.
     fifteen
    [3]
    3. Procedure of ceramic digital printing on glass (1), characterized by comprising at least the following stages:
    - applying an ink with effect on said glass (1),
    - print ceramic digital printing ink (30) creating a motif on said glass (1) on the side where said ink has been applied with effect, 25
    - temper or cook the glass (1) in an oven, and
    - wash the glass sheet (1).
     30
    [4]
    4. Digital ceramic printing process on glass (1), according to the preceding claim, characterized in that said washing is carried out with water

    [5]
    5. Digital ceramic printing process on glass (1), according to any of claims 5 to 4, characterized in that said ink with effect (20) is claimed in any of claims 1 to 2.
     10
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    同族专利:
    公开号 | 公开日
    ES2565520B1|2017-01-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    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|WO2019117697A1|2017-12-13|2019-06-20|Guzman Diaz Covarrubias Leonardo|Decorated glass for home appliances and white goods|
    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201431444A|ES2565520B1|2014-10-01|2014-10-01|Ink with non-slip and / or metallized effect for ceramic digital printing on glass and use procedure|ES201431444A| ES2565520B1|2014-10-01|2014-10-01|Ink with non-slip and / or metallized effect for ceramic digital printing on glass and use procedure|
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