A glass ink of a film-like color and a method for preparing the same

Abstract

The application discloses a kind of glass ink of film-like glass color and preparation method thereof, including the following weight parts raw materials: 20~30 parts of glass powder, 40~50 parts of ink powder and 20~30 parts of diluent;The glass powder includes the following weight parts components: 72‑73 parts of silicon dioxide, 3‑5 parts of magnesium oxide, 7‑14 parts of calcium oxide and 13‑14 parts of sodium oxide;The ink powder includes the following weight parts components: 17‑18 parts of bismuth oxide, 23.5‑24 parts of zinc oxide, 23.5‑24 parts of silicon dioxide, 5.8‑6.2 parts of titanium dioxide, 5.8‑6.2 parts of copper oxide, 7‑7.5 parts of lithium carbonate, 3.5‑4 parts of soda ash, 5.8‑6.2 parts of black pigment, 5.8‑6.2 parts of titanium white;The glass ink is by optimizing the formula of glass ink, ordinary glass powder can also be added to the ink to prepare into the film-like glass color high-temperature glass ink that meets the requirements, so as to need special preparation glass powder of glass ink, can significantly reduce the production cost of glass ink, be conducive to large-scale popularization and application of glass ink.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of glass ink, in particular to a kind of glass ink of imitation film glass color and preparation method thereof. BACKGROUND

[0002] Glass ink refers to the ink that can be printed on glass and can be firmly attached, the glass ink used in the market at present is divided into low temperature, medium temperature and high temperature three types according to processing temperature range. Among them, medium temperature glass ink is also called glass baking ink, the sintering temperature is about 500 DEG C, and it is widely used in glass, ceramic, sports equipment and other industries;High temperature glass ink is also called tempered glass ink, which is strengthened by high temperature instant baking and instant cooling of 680-720 DEG C, so that the ink and glass are firmly fused together, and it is widely used in building curtain wall, automobile glass, oven panel and the like. High temperature ink is applied on the substrate by silk printing or roller printing, etc. In the heating process, water or solvent is first volatilized, organic solids such as resin begin to decompose at more than 300 DEG C, and then glass powder begins to melt into film at more than 400 DEG C, so that the glass pigment and glass body are fused into one, realizing the adhesion and durability of color, the glass with good color and strengthening has rich color, high strength of glass structure, safety, and certain resistance to atmospheric corrosion, good corrosion resistance and hiding power. But because high temperature glass ink mostly uses high lead content glass powder as the main film forming material to realize the adhesion, durability and fullness of color, but in today's society, people's environmental protection consciousness is gradually enhanced, which makes the lead-containing material must be eliminated, and some glass inks contain toxic organic solvents such as benzene, ketone and the like. In the production process of ink, if the solvent is not handled properly, it is easy to cause harm to the body of glass ink production workers;In the printing process of ink, the evaporation of toxic solvents contained in the ink will also cause certain harm to the body of the printing workers;In the use process of printed products, due to the large amount of toxic solvents contained in the ink, a certain amount of solvents will also be left on the printed products, which will also produce odor and affect the health of the users of printed products.

[0003] Meanwhile, as an important component of the high-temperature glass ink, the performance and raw material source of the glass powder directly affect the performance and production cost of the glass ink. For example, the patent with the publication number CN109867449A discloses a lead-free low-melting point glass powder for automobile glass ink and a preparation method thereof, the patent with the publication number CN106560456A discloses a lead-free glass powder for automobile tempered glass shielding silver paste glass ink, and the patent with the publication number CN107523117A discloses an automobile tempered glass ink and a preparation method thereof. The above patents all disclose a glass ink and a glass powder used for the glass ink. However, the glass powder used in the above patents is specially prepared, that is, the applicant adjusts the glass formula to prepare a glass block or a glass sheet and then grinds the glass block or the glass sheet to obtain the glass powder. The glass powder needs to undergo multiple processes. Although the obtained glass ink has excellent performance, the production cost is high, which is not conducive to the large-scale popularization and application of the glass ink.

[0004] Therefore, in view of the above, the existing high-temperature glass ink has the problems of toxic and harmful solvent, special preparation of glass powder raw material, and high cost. It is necessary to provide an environmentally friendly, low-cost, and resource-saving and environment-friendly high-temperature glass ink to overcome the deficiencies of the prior art, which has a positive effect on the large-scale application and popularization of the high-temperature glass ink. SUMMARY

[0005] The present application aims to overcome the problems of special preparation of glass powder raw material and high cost of the existing high-temperature glass ink, and provides a glass ink with film-like glass color and a preparation method thereof. By optimizing the formula of the glass ink, ordinary glass powder can also be added to the ink to prepare a high-temperature glass ink with film-like glass color that meets the requirements, so that the glass powder required for the special preparation of the glass ink can be significantly reduced, the production cost of the glass ink can be reduced, and the large-scale popularization and application of the glass ink can be facilitated.

[0006] In order to achieve the above-mentioned application purposes, the present application provides a glass ink with film-like glass color, which comprises the following raw materials by weight: 20-30 parts of glass powder, 40-50 parts of ink powder, and 20-30 parts of diluent; the glass powder comprises the following components by weight: 72-73 parts of silicon dioxide, 3-5 parts of magnesium oxide, 7-14 parts of calcium oxide, and 13-14 parts of sodium oxide; the ink powder comprises the following components by weight: 17-18 parts of bismuth oxide, 23.5-24 parts of zinc oxide, 23.5-24 parts of silicon dioxide, 5.8-6.2 parts of titanium dioxide, 5.8-6.2 parts of copper oxide, 7-7.5 parts of lithium carbonate, 3.5-4 parts of soda ash, 5.8-6.2 parts of black pigment, and 5.8-6.2 parts of titanium white.

[0007] The glass ink of the film-imitating glass color can be directly prepared by using the existing ordinary glass powder and ink powder, and the performance of the prepared glass ink meets the requirements, that is, the ordinary glass powder can also be added to the glass ink to prepare the film-imitating glass color high-temperature glass ink meeting the requirements, so that the glass powder required for the special preparation of the glass ink can be avoided, the production cost of the glass ink can be significantly reduced, and the large-scale popularization and application of the glass ink are facilitated.

[0008] Preferably, the diluent comprises one or more of a water-based resin, an organic solvent, water, a leveling agent and a defoaming agent; more preferably, the diluent comprises the following raw materials by weight: 24-26 parts of a water-based resin, 48-52 parts of a solvent, 12-13 parts of deionized water, 6-7 parts of a water-based leveling agent and 1-1.5 parts of a water-based defoaming agent; the ink slurry has better performance and is convenient for printing use.

[0009] Preferably, the water-based resin is a water-based polyurethane; the solvent is one or more of ethylene glycol, n-butanol, n-pentanol or n-octanol; the underwater leveling agent is polyacrylic acid or carboxymethyl cellulose; and the water-based defoaming agent is a mixture of dimethyl silicone oil, white carbon black and Tween at a mass ratio of 1:1:1; the glass ink does not contain toxic and harmful solvents, and the ink slurry has better performance and is convenient for printing use.

[0010] Preferably, the curing temperature of the glass ink is 670-720℃, and the curing time is 180-800s; the adhesion and durability of the formed film layer of the glass ink are better.

[0011] To achieve the above-mentioned purposes, the application further provides a preparation method of the film-imitating glass color glass ink.

[0012] (1) Glass powder preparation: washing and drying the required glass coarse powder, ball milling, and then sieving through a 200-mesh screen to obtain the glass powder;

[0013] (2) Preparation of the glass ink: mixing, stirring and then grinding the glass powder, ink powder and diluent according to the glass ink formula to obtain the glass ink.

[0014] Preferably, in step (1), the ball milling speed is 20-25 r / min, and the time is 110-130 min; the glass powder obtained under the preferred ball milling conditions has good uniformity and flowability, and is more suitable as a raw material of the glass ink.

[0015] Preferably, in step (2), the grinding is performed by a three-roll grinder, the grinding speeds of the three rolls of the three-roll grinder are 40-60 r / min, 80-100 r / min and 30-35 r / min respectively, and the grinding time is 50-70 s; preferably, the grinding effect is the best and the quality of the glass ink obtained is the best.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] 1. The glass ink of the present application can be prepared by adding ordinary glass powder into the ink to meet the requirements of the film-like glass color high-temperature glass ink, thereby avoiding the need for special preparation of glass powder required for the glass ink, and significantly reducing the production cost of the glass ink.

[0018] 2. The diluent added in the glass ink of the present application does not contain toxic and harmful components, and is safer and more environmentally friendly.

[0019] 3. The preparation method of the glass ink of the present application is simple, reliable and suitable for large-scale production of the glass ink. DETAILED DESCRIPTION

[0020] The present application will be described in detail below.

[0021] In order to make the purpose, technical scheme and advantages of the present application clearer and more apparent, the present application will be further described in detail below with reference to examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0022] Example 1

[0023] A film-like glass color ink, raw materials:

[0024] Glass powder (tempered glass edge waste), comprising the following components by weight: 72.28 parts of silicon dioxide, 4.06 parts of magnesium oxide, 8.95 parts of calcium oxide and 13.68 parts of sodium oxide, 0.2 parts of potassium oxide;

[0025] Ink powder: composed of the following components by weight: 17.5 parts of bismuth oxide, 23.5 parts of zinc oxide, 24 parts of silicon dioxide, 6.0 parts of titanium dioxide, 6.0 parts of copper oxide, 7.2 parts of lithium carbonate, 3.8 parts of soda ash, 6.0 parts of black pigment, 6.0 parts of titanium white;

[0026] Diluent: composed of the following raw materials by weight: 25 parts of water-based polyurethane, 50 parts of ethylene glycol, 12.5 parts of deionized water, 6.5 parts of polyacrylic acid and 1.2 parts of dimethyl silicone oil, white carbon black and Tween with a mass ratio of 1:1:1;

[0027] Specific preparation method:

[0028] (1) Glass powder preparation: the required glass powder was washed and dried, and then ball milled (ball milling speed was 23 r / min, time was 120 min), and then sieved through a 200 mesh sieve to obtain the glass powder;

[0029] (2) Preparation of glass ink: 25 parts of glass powder, 45 parts of ink powder and 30 parts of diluent were mixed and stirred, and then ground (the grinding speeds of the three rollers on the three-roll grinder were 50 r / min, 90 r / min and 32 r / min, respectively; the grinding time was 60 s) to obtain the glass ink.

[0030] Example 2

[0031] A kind of glass ink of imitation film glass color, raw material:

[0032] Glass powder (conventional waste tempered glass): including the following components by weight: 72.5 parts of silicon dioxide, 3.98 parts of magnesium oxide, 7.8 parts of calcium oxide and 13.28 parts of sodium oxide; 0.1 parts of potassium oxide;

[0033] Ink powder: composed of the following components by weight: 17 parts of bismuth oxide, 24 parts of zinc oxide, 23.5 parts of silicon dioxide, 6.2 parts of titanium dioxide, 6.2 parts of copper oxide, 7 parts of lithium carbonate, 4 parts of soda ash, 6.2 parts of black pigment, 5.8 parts of titanium white;

[0034] Diluent: composed of the following raw materials by weight: 26 parts of water-based polyurethane, 48 parts of n-butanol, 13 parts of deionized water, 6 parts of carboxymethyl cellulose and 1 part of dimethyl silicone oil, white carbon black and Tween with a mass ratio of 1:1:1;

[0035] Specific preparation method:

[0036] (1) Glass powder preparation: the required glass powder was washed and dried, and then ball milled (ball milling speed was 23 r / min, time was 120 min), and then sieved through a 200 mesh sieve to obtain the glass powder;

[0037] (2) Preparation of glass ink: 25 parts of glass powder, 45 parts of ink powder and 30 parts of diluent were mixed and stirred, and then ground (the grinding speeds of the three rollers on the three-roll grinder were 50 r / min, 90 r / min and 32 r / min, respectively; the grinding time was 60 s) to obtain the glass ink.

[0038] Example 3

[0039] A kind of glass ink of film-like color, raw material:

[0040] Glass powder (waste produced by tempered glass edge grinding, cutting, etc.): comprising the following components by weight: 73 parts of silicon dioxide, 3.1 parts of magnesium oxide, 13.48 parts of calcium oxide and 14 parts of sodium oxide, 0.15 parts of potassium oxide;

[0041] Ink powder: composed of the following components by weight: 18 parts of bismuth oxide, 24 parts of zinc oxide, 23.5 parts of silicon dioxide, 6.2 parts of titanium dioxide, 6.2 parts of copper oxide, 7 parts of lithium carbonate, 4 parts of soda ash, 6.2 parts of black pigment, 5.8 parts of titanium white;

[0042] Diluent: composed of the following raw materials by weight: 24 parts of water-based polyurethane, 52 parts of n-pentanol, 12 parts of deionized water, 7 parts of polyacrylic acid and 1.5 parts of dimethyl silicone oil, white carbon black and Tween with a mass ratio of 1:1:1;

[0043] Specific preparation method:

[0044] (1) Glass powder preparation: After washing and drying the required glass coarse powder, ball milling is carried out (ball milling speed is 20 r / min, time is 110 min), and after ball milling, it is passed through a 200 mesh sieve to obtain glass powder;

[0045] (2) Preparation of glass ink: 30 parts of glass powder, 50 parts of ink powder and 20 parts of diluent are mixed, stirred and then ground (the grinding speeds of the three rollers on the three-roll grinding machine are 40 r / min, 80 r / min and 30 r / min respectively; the grinding time is 50 s) to obtain the glass ink.

[0046] Comparative Example 1

[0047] A kind of glass ink, compared with Example 1, the difference is that the composition of the ink powder used is different; the ink powder used in Comparative Example 1 is composed of the following components by weight: 20 parts of bismuth oxide, 23.5 parts of zinc oxide, 24 parts of silicon dioxide, 6.0 parts of titanium dioxide, 6.0 parts of copper oxide, 7.2 parts of lithium carbonate, 3.8 parts of soda ash, 6.0 parts of black pigment, 6.0 parts of titanium white.

[0048] Comparative Example 2

[0049] A kind of glass ink, compared with Example 1, the difference is that the composition of the ink powder added is different;

[0050] The toner used in Comparative Example 2 is composed of the following components in parts by weight (without copper oxide): 17.5 parts of bismuth oxide, 23.5 parts of zinc oxide, 24 parts of silicon dioxide, 6.0 parts of titanium dioxide, 7.2 parts of lithium carbonate, 3.8 parts of soda ash, 6.0 parts of black pigment, and 6.0 parts of titanium white.

[0051] Comparative Example 3

[0052] A glass ink, compared with Example 1, differs in that the toner composition added is different.

[0053] The toner used in Comparative Example 2 is composed of the following components in parts by weight: 10 parts of bismuth oxide, 23.5 parts of zinc oxide, 24 parts of silicon dioxide, 6.0 parts of titanium dioxide, 6.0 parts of copper oxide, 7.2 parts of lithium carbonate, 3.8 parts of soda ash, 6.0 parts of black pigment, and 6.0 parts of titanium white.

[0054] Comparative Example 4

[0055] A glass ink, compared with Example 1, differs in that the toner composition used is different; the toner used in Comparative Example 1 is composed of the following components in parts by weight: 20 parts of bismuth oxide, 23.5 parts of zinc oxide, 24 parts of silicon dioxide, 6.0 parts of titanium dioxide, 6.0 parts of copper oxide, 7.2 parts of lithium carbonate, 3.8 parts of soda ash, 6.0 parts of cobalt black, and 6.0 parts of titanium white.

[0056] Comparative Example 5

[0057] The glass ink prepared in Example 1 of Patent Publication No. CN107523117A.

[0058] Experimental Example:

[0059] No. Test Condition Acid Resistance Immersion in 3% hydrochloric acid solution for 72 h Alkali Resistance Immersion in 5% sodium hydroxide solution for 72 h Water Immersion Immersion in water at 25°C for 7 d Adhesion Crosshatch Test Method Glossiness Glossiness Tester

[0060] No. Acid Resistance Alkali Resistance Water Immersion Adhesion Glossiness Cost (yuan / kg) Example 1 No change in surface of Grade 1 No change in surface of Grade 1 No discoloration or color loss ISO Grade: superior to Grade 1 High 40 Example 2 No change in surface of Grade 1 No change in surface of Grade 1 No discoloration or color loss ISO Grade: superior to Grade 1 High 45 Example 3 No change in surface of Grade 1 No change in surface of Grade 1 No discoloration or color loss ISO Grade: superior to Grade 1 High 43 Comparative Example 1 Grade 2 Grade 2 Color loss Grade 2 High 41 Comparative Example 2 Grade 2 Grade 2 Color loss Grade 2 High 41 Comparative Example 3 Grade 2 Grade 2 Color loss Grade 2 High 40 Comparative Example 4 Grade 2 Grade 2 Color loss Grade 2 High 41 Comparative Example 5 Grade 1 Grade 1 No discoloration or color loss Superior to Grade 1 High 106

[0061] Conclusion: Through the above experimental tests, it can be known that although the glass ink prepared in Examples 1-3 of the present application cannot be significantly better than the existing glass ink, it can significantly reduce the cost of the glass ink because it can directly use the existing tempered glass waste as a glass powder raw material to prepare the glass ink. However, after adjusting the ratio or composition of the toner in any of Comparative Examples 1-4, and using the same glass powder to prepare the glass ink, the performance of the obtained glass ink is significantly reduced. It can be seen that the formula of the glass ink of the present application is obtained by targeted adjustment according to the conventional tempered glass composition, which can significantly reduce the cost of the glass ink without affecting the performance of the glass ink, and is more suitable for large-scale promotion and application of the glass ink.

[0062] The above merely describes preferred embodiments of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A glass ink with a simulated glass film color, comprising the following raw materials in parts by weight: 20-30 parts glass powder, 40-50 parts toner, and 20-30 parts diluent; wherein the glass powder comprises the following components in parts by weight: 72-73 parts silicon dioxide, 3-5 parts magnesium oxide, 7-14 parts calcium oxide, and 13-14 parts sodium oxide; wherein the toner comprises the following components in parts by weight: 17-18 parts bismuth oxide, 23.5-24 parts zinc oxide, 23.5-24 parts silicon dioxide, 5.8-6.2 parts titanium dioxide, 5.8-6.2 parts copper oxide, 7-7.5 parts lithium carbonate, 3.5-4 parts soda ash, 5.8-6.2 parts melanin, and 5.8-6.2 parts titanium dioxide.

2. The glass ink according to claim 1, characterized in that, The diluent includes one or more of the following: water-based resin, organic solvent, water, leveling agent, and defoamer.

3. The glass ink according to claim 2, characterized in that, The diluent comprises the following raw materials in parts by weight: 24-26 parts of waterborne resin, 48-52 parts of solvent, 12-13 parts of deionized water, 6-7 parts of waterborne leveling agent, and 1-1.5 parts of waterborne defoamer.

4. The glass ink according to claim 3, characterized in that, The waterborne resin is waterborne polyurethane.

5. The glass ink according to claim 3, characterized in that, The solvent is one or more of ethylene glycol, n-butanol, n-pentanol, or n-octanol.

6. The glass ink according to claim 3, characterized in that, The aqueous defoamer is a mixture of dimethyl silicone oil, silica, and Tween in a mass ratio of 1:1:

1.

7. The glass ink according to any one of claims 1-6, characterized in that, The curing temperature of the glass ink is 670-720℃; the curing time is 180-800s.

8. A method for preparing glass ink according to any one of claims 1-7, characterized in that, (1) Glass powder preparation: After cleaning and drying the qualified coarse glass powder, it is ball-milled and then passed through a 200-mesh sieve to obtain glass powder; (2) Preparation of glass ink: According to the glass ink formula, glass powder, ink powder and diluent are mixed and stirred, and then ground to obtain glass ink.

9. The method for preparing glass ink according to claim 8, characterized in that, In step (1), the ball milling speed is 20-25 r / min and the time is 110-130 min.

10. The method for preparing glass ink according to claim 8, in step (2), the grinding is carried out by a three-roll mill, and the grinding speeds of the three rollers on the three-roll mill are 40-60 r / min, 80-100 r / min and 30-35 r / min respectively; the grinding time is 50-70 s.