High-temperature-sintered texturing ink as well as preparation method and application thereof

Abstract

The invention discloses a high-temperature-sintered graining ink as well as a preparation method and application of the high-temperature-sintered graining ink. The invention discloses high-temperature sintered pattern making ink. The ink comprises a component 1, a component 2 and a component 3, wherein the component 1 is prepared from the following raw materials in parts by mass: 30 to 50 parts of waterborne polyurethane resin, 1 to 5 parts of alcohol, 3 to 8 parts of nonionic polyurethane associated thickener, 1 to 5 parts of hand feeling agent, 0.5 to 1 part of wetting agent, 0.5 to 1 part of defoaming agent, 10 to 20 parts of waterborne nano color paste and the balance of deionized water; the component 2 is prepared from the following raw materials in parts by mass: 70 to 80 parts of hydrophilic isocyanate and 20 to 30 parts of propylene glycol methyl ether acetate; and the component 3 is polycarbodiimide. According to the water-based ink, carbodiimide and hydrophilic isocyanate are innovatively matched for use, use of a toxic curing agent aziridine is avoided, and the water-based ink does not contain toxic substances, is small in harm to human bodies and the environment, and meanwhile is high in adhesive force and better in stain resistance and wear resistance.

Description

Technical Field

[0001] The invention relates to the technical field of gravure inks, in particular to a high-temperature sintered graining ink and a preparation method and application thereof. Background Art

[0002] The printing methods in the prior art are mainly transfer printing, silk screen printing and the like. The disadvantages of transfer printing are that the ink is not easy to dry, the ink is unevenly distributed, the ink is easy to penetrate after embossing, the embossed texture is fuzzy and unclear, and the printing speed is very slow and the printing precision is low. The disadvantage of silk screen printing is that the resolution of silk screen texture is low, generally between 150-200 PPI. Although there is also ink printing using thermal transfer ink in the prior art, due to the short curing time of thermal transfer ink and the dilution of ink, the printing equipment needs to strictly control the ink output to compensate. Since the ink output is controlled, the printing speed needs to be slow. During the printing process, it is easy to cause printing problems such as ink shedding due to unstable feeding, and affect the texture clarity. In the prior art, UV curing is used for embossing ink printing, but the solid content of UV curing ink is generally high, so the ink is sticky, and the ink head needs to be cleaned frequently during printing. In addition, when the ink is UV-cured, the UV light penetration is weak and the ink is thick, which easily leads to unclear texture. Generally, UV curing ink can be printed at a lower PPI embossing requirement, but the printing speed is slow. It is difficult to match the embossing requirement of PPI above 300, so there are many limitations in terms of printing speed, ink solid content, and texture clarity. In the prior art, there is also a method of printing with ordinary UV curing ink by adding inorganic pigments to the ink to change the light reflection method to achieve the wear resistance of the texture ink. In this method, because the refractive index of inorganic pigments is higher than that of organic substances, it is difficult to achieve flat glass embossing when the ordinary UV ink itself is thick. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention provides a high-temperature sintered graining ink and a preparation method and application thereof.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] In a first aspect, a high-temperature sintered graining ink is provided, wherein the ink is composed of the following raw materials in parts by weight:

[0006] Can sinter transparent UV oil 5-10 parts

[0007] HEMA monomer 10-15 parts

[0008] Glass frit 60-65 parts

[0009] 3-5 parts of photoinitiator

[0010] Dispersant 1-2 parts

[0011] 1-2 parts of fumed silica

[0012] Defoaming agent 0.1-1 part;

[0013] The sinterable transparent UV oil is composed of the following raw materials in parts by weight:

[0014] 40-60 parts of HEMA monomer

[0015] PHEA monomer 20-30 parts

[0016] 20-30 parts of solid acrylic resin.

[0017] Furthermore, the TG point of the solid acrylic resin is 40-50°C.

[0018] Furthermore, the molecular weight of the solid acrylic resin is 60,000-150,000.

[0019] Furthermore, the glass frit is a high-temperature glass powder having a melting temperature of 500-700°C.

[0020] Furthermore, the photoinitiator is photoinitiator 819.

[0021] In a second aspect, a method for preparing a high-temperature sintered graining ink as described in the first aspect comprises the following steps:

[0022] Mix HEMA monomer, PHEA monomer and solid acrylic resin and disperse them in a disperser to fully dissolve and cool them to obtain sinterable transparent UV oil;

[0023] The HEMA monomer, photoinitiator, dispersant, fumed silica and defoamer are put into the disperser for dispersion, and then the frit is added and ground on a three-roll mill for 2 to 3 times to obtain a finished product.

[0024] In the third aspect, an application of a high-temperature sintered texturing ink as described in the first aspect, the application method is as follows: select a 200-300 mesh printing screen, print the ink on a substrate to obtain an ink layer, press a PET texture film on the ink layer, perform vacuum light curing, and finally obtain a finished product after sintering at 685-700°C.

[0025] Furthermore, the ink layer has a thickness of 10 to 25 μm.

[0026] Furthermore, the vacuum light curing is performed under vacuum using an LED lamp with a wavelength of 395 μm and an energy of 1000-2000 mJ or more for irradiation curing.

[0027] Furthermore, the irradiation distance is 2-3 cm.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The present invention rationally selects the photoinitiator and the monomer prepolymer transparent varnish, which can be burned through at high temperature without any residue. Then, by adding the high-temperature frit, the ink and the frit are sintered together on the surface of the substrate. After the high-temperature sintering, the UV material has been burned out, leaving the frit and the formed texture, thereby obtaining more diversified effects and enhancing the surface's scratch resistance, adhesion, and acid and alkali resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the finished product prepared in Example 1 of the present invention;

[0031] Figure 2 This is a schematic diagram of the finished product prepared in Example 2 of the present invention;

[0032] Figure 3 This is a schematic diagram of the finished product prepared in Example 3 of the present invention;

[0033] Figure 4 This is a schematic diagram of a coating prepared in Comparative Example 1 of the present invention;

[0034] Figure 5 This is a schematic diagram of a coating prepared in Comparative Example 2 of the present invention;

[0035] Figure 6 This is a schematic diagram of the coating prepared in Comparative Example 3 of the present invention. DETAILED DESCRIPTION

[0036] For ease of understanding of the application, the application will be described more fully below. The application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the application more thorough and comprehensive.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In the description of the present application, the meaning of "several" is at least one, such as one, two, etc., unless otherwise clearly and specifically defined.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present application belongs. The terms used herein in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0039] In the present application, the technical features described in an open manner include closed technical solutions composed of the listed features, and also include open technical solutions containing the listed features.

[0040] In this application, when it comes to numerical ranges, unless otherwise specified, the above numerical ranges are deemed to be continuous and include the minimum and maximum values ​​of the range, as well as each value between such minimum and maximum values. Further, when a range refers to an integer, each integer between the minimum and maximum values ​​of the range is included. In addition, when multiple ranges are provided to describe features or characteristics, the ranges can be merged. In other words, unless otherwise specified, all ranges disclosed herein should be understood to include any and all subranges included therein.

[0041] The percentage contents involved in this application, unless otherwise specified, refer to mass percentage for solid-liquid mixing and solid-solid mixing, and refer to volume percentage for liquid-liquid mixing.

[0042] The percentage concentrations mentioned in this application, unless otherwise specified, refer to the final concentration, which refers to the percentage of the added component in the system after the addition of the component.

[0043] The temperature parameters in this application, unless otherwise specified, allow for both constant temperature treatment and treatment within a certain temperature range. The constant temperature treatment allows the temperature to fluctuate within the accuracy range of instrument control.

[0044] The "particles" mentioned in this application, or materials with a defined particle size distribution, are not necessarily spherical in shape, but may be irregular, primary particles or secondary particles. The particle size of irregular particles is the average of their maximum diameter and minimum diameter.

[0045] Example 1

[0046] A high-temperature sintered graining ink, the ink is composed of raw materials in parts by weight:

[0047] Can sinter transparent UV oil 5 parts

[0048] HEMA monomer 15 parts

[0049] Glass frit 60 parts

[0050] Photoinitiator 819 3 parts

[0051] Dispersant 1 part

[0052] 2 parts of fumed silica

[0053] Defoaming agent 0.1 part;

[0054] The sinterable transparent UV oil is composed of the following raw materials in parts by weight:

[0055] HEMA monomer 40 parts

[0056] PHEA monomer 30 parts

[0057] 30 parts of solid acrylic resin.

[0058] Wherein, the TG point of the solid acrylic resin is 40-50°C.

[0059] Wherein, the molecular weight of the solid acrylic resin is 60,000-150,000.

[0060] Furthermore, the glass frit is a high-temperature glass powder having a melting temperature of 500-700°C.

[0061] The method for preparing the above-mentioned high-temperature sintered graining ink comprises the following steps:

[0062] Mix HEMA monomer, PHEA monomer and solid acrylic resin and disperse them in a disperser to fully dissolve and cool them to obtain sinterable transparent UV oil;

[0063] The HEMA monomer, photoinitiator, dispersant, fumed silica and defoamer are put into the disperser for dispersion, and then the frit is added and ground on a three-roll mill for 2 to 3 times to obtain a finished product.

[0064] The application of the above-mentioned high-temperature sintered texture ink is as follows: select a 200-300 mesh printing screen, print the ink on the glass surface to obtain an ink layer with a thickness of 10 μm, press a PET texture film on the ink layer, and perform vacuum light curing, specifically, use an LED lamp with a wavelength of 395 μm and an energy of 1000 mJ for irradiation curing under vacuum, and the irradiation distance is 2-3 cm; finally, the finished product is obtained after sintering at 685-700°C.

[0065] Example 2

[0066] A high-temperature sintered graining ink, the ink is composed of raw materials in parts by weight:

[0067] Can sinter transparent UV oil 7 parts

[0068] HEMA monomer 10 parts

[0069] Glass frit 62 parts

[0070] Photoinitiator 819 5 parts

[0071] Dispersant 1.5 parts

[0072] 1 part of fumed silica

[0073] 1 part of defoaming agent;

[0074] The sinterable transparent UV oil is composed of the following raw materials in parts by weight:

[0075] 45 parts of HEMA monomer

[0076] PHEA monomer 25 parts

[0077] 30 parts of solid acrylic resin.

[0078] Wherein, the TG point of the solid acrylic resin is 40-50°C.

[0079] Wherein, the molecular weight of the solid acrylic resin is 60,000-150,000.

[0080] Furthermore, the glass frit is a high-temperature glass powder having a melting temperature of 500-700°C.

[0081] The method for preparing the above-mentioned high-temperature sintered graining ink comprises the following steps:

[0082] Mix HEMA monomer, PHEA monomer and solid acrylic resin and disperse them in a disperser to fully dissolve and cool them to obtain sinterable transparent UV oil;

[0083] The HEMA monomer, photoinitiator, dispersant, fumed silica and defoamer are put into the disperser for dispersion, and then the frit is added and ground on a three-roll mill for 2 to 3 times to obtain a finished product.

[0084] The application of the above-mentioned high-temperature sintered texture ink is as follows: select a 200-300 mesh printing screen, print the ink on the glass surface to obtain an ink layer with a thickness of 15 μm, press a PET texture film on the ink layer, and perform vacuum light curing, specifically, use an LED lamp with a wavelength of 395 μm and an energy of 1500 millijoules for irradiation curing under vacuum, and the irradiation distance is 2-3 cm; finally, the finished product is obtained after sintering at 685-700°C.

[0085] Example 3

[0086] A high-temperature sintered graining ink, the ink is composed of raw materials in parts by weight:

[0087] Can sinter transparent UV oil 8 parts

[0088] HEMA monomer 12 parts

[0089] Glass frit 65 parts

[0090] Photoinitiator 819 4 parts

[0091] Dispersant 2 parts

[0092] 1.5 parts of fumed silica

[0093] 0.5 parts of defoaming agent;

[0094] The sinterable transparent UV oil is composed of the following raw materials in parts by weight:

[0095] HEMA monomer 50 parts

[0096] PHEA monomer 25 parts

[0097] 25 parts of solid acrylic resin.

[0098] Wherein, the TG point of the solid acrylic resin is 40-50°C.

[0099] Wherein, the molecular weight of the solid acrylic resin is 60,000-150,000.

[0100] Furthermore, the glass frit is a high-temperature glass powder having a melting temperature of 500-700°C.

[0101] The method for preparing the above-mentioned high-temperature sintered graining ink comprises the following steps:

[0102] Mix HEMA monomer, PHEA monomer and solid acrylic resin and disperse them in a disperser to fully dissolve and cool them to obtain sinterable transparent UV oil;

[0103] The HEMA monomer, photoinitiator, dispersant, fumed silica and defoamer are put into the disperser for dispersion, and then the frit is added and ground on a three-roll mill for 2 to 3 times to obtain a finished product.

[0104] The application of the above-mentioned high-temperature sintered texture ink is as follows: select a 200-300 mesh printing screen, print the ink on the glass surface to obtain an ink layer with a thickness of 20 μm, press a PET texture film on the ink layer, and perform vacuum light curing, specifically, use an LED lamp with a wavelength of 395 μm and an energy of 2000 mJ for irradiation curing under vacuum, and the irradiation distance is 2-3 cm; finally, the finished product is obtained after sintering at 685-700°C.

[0105] Example 4

[0106] A high-temperature sintered graining ink, the ink is composed of raw materials in parts by weight:

[0107] Sinterable transparent UV oil 10 parts

[0108] HEMA monomer 10 parts

[0109] Glass frit 60 parts

[0110] Photoinitiator 819 3 parts

[0111] Dispersant 1 part

[0112] 1 part of fumed silica

[0113] 1 part of defoaming agent;

[0114] The sinterable transparent UV oil is composed of the following raw materials in parts by weight:

[0115] HEMA monomer 60 parts

[0116] PHEA monomer 20 parts

[0117] 20 parts of solid acrylic resin.

[0118] Wherein, the TG point of the solid acrylic resin is 40-50°C.

[0119] Wherein, the molecular weight of the solid acrylic resin is 60,000-150,000.

[0120] Furthermore, the glass frit is a high-temperature glass powder having a melting temperature of 500-700°C.

[0121] The method for preparing the above-mentioned high-temperature sintered graining ink comprises the following steps:

[0122] Mix HEMA monomer, PHEA monomer and solid acrylic resin and disperse them in a disperser to fully dissolve and cool them to obtain sinterable transparent UV oil;

[0123] The HEMA monomer, photoinitiator, dispersant, fumed silica and defoamer are put into the disperser for dispersion, and then the frit is added and ground on a three-roll mill for 2 to 3 times to obtain a finished product.

[0124] The application of the above-mentioned high-temperature sintered texture ink is as follows: select a 200-300 mesh printing screen, print the ink on the glass surface to obtain an ink layer with a thickness of 25 μm, press a PET texture film on the ink layer, and perform vacuum light curing, specifically, use an LED lamp with a wavelength of 395 μm and an energy of 2000 mJ for irradiation curing under vacuum, and the irradiation distance is 2-3 cm; finally, the finished product is obtained after sintering at 685-700°C.

[0125] Comparative Example 1

[0126] Comparative Example 1 is different from Example 1 in that the solid acrylic resin selected has a TG point of 60° C. and a molecular weight of 200000. When this ink is used, too much residue remains after sintering, and the paint film is black.

[0127] Comparative Example 2

[0128] The difference between Comparative Example 2 and Example 1 is that high-temperature glass powder with a melting temperature of 800° C. is selected.

[0129] Comparative Example 3

[0130] Compared with Example 1, Comparative Example 3 is different in that high-temperature glass powder with a melting temperature of 400° C. is used.

[0131] When the inks of Comparative Examples 2 and 3 are used, the frit has a high melting point and is not easy to burn through during sintering, and the paint film becomes dull if it is not burned through; if the frit temperature is too low, it is not conducive to the volatilization of the organic resin, and the paint film will become black if there is too much residual organic resin.

[0132] The glass graining effects obtained in the above Examples 1-4 and Comparative Examples 1-3 were subjected to adhesion tests and paint film water resistance tests, as follows:

[0133]

[0134] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0135] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A high temperature sintered texture ink, characterized in that: The ink is composed of the following raw materials by weight: Can sinter transparent UV oil 5-10 parts HEMA monomer 10-15 parts Glass frit 60-65 parts 3-5 parts of photoinitiator Dispersant 1-2 parts 1-2 parts of fumed silica Defoaming agent 0.1-1 part; The sinterable transparent UV oil is composed of the following raw materials in parts by weight: 40-60 parts of HEMA monomer PHEA monomer 20-30 parts 20-30 parts of solid acrylic resin.

2. The high temperature sintered graining ink according to claim 1, characterized in that: The TG point of the solid acrylic resin is 40 to 50°C.

3. The high temperature sintered texturing ink according to claim 2, characterized in that: The molecular weight of the solid acrylic resin is 60,000-150,000.

4. The high temperature sintered texturing ink according to claim 3, characterized in that: The glass frit is high-temperature glass powder with a melting temperature of 500-700°C.

5. The high temperature sintered texturing ink according to claim 4, characterized in that: The photoinitiator is photoinitiator 819.

6. A method for preparing a high temperature sintered graining ink as claimed in claim 1, characterized in that: It includes the following steps: Mix HEMA monomer, PHEA monomer and solid acrylic resin and disperse them in a disperser to fully dissolve and cool them to obtain sinterable transparent UV oil; The HEMA monomer, photoinitiator, dispersant, fumed silica and defoamer are put into the disperser for dispersion, and then the frit is added and ground on a three-roll mill for 2 to 3 times to obtain a finished product.

7. An application of the high temperature sintered graining ink as claimed in claim 1, characterized in that: The application method is as follows: select a 200-300 mesh printing screen, print the ink on a substrate to obtain an ink layer, press a PET texture film on the ink layer, perform vacuum light curing, and finally sinter at 685-700° C. to obtain a finished product.

8. The use of the high temperature sintered graining ink according to claim 7, characterized in that: The thickness of the ink layer is 10 to 25 μm.

9. The use of the high temperature sintered graining ink according to claim 8, characterized in that: The vacuum light curing is performed under vacuum using an LED lamp with a wavelength of 395 μm and an energy of 1000-2000 mJ or more for irradiation curing.

10. The use of the high temperature sintered graining ink according to claim 9, characterized in that: The irradiation distance is 2-3cm.

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