Frosted glass ink composition as well as preparation method and application thereof

Abstract

The invention provides a glass ink composition which is characterized by comprising frit ink, quartz ink and alumina ink, and the mass ratio of the frit ink to the quartz ink to the alumina ink is (60-90): (5-30): (5-10); the solid content of the frit ink is 35%-48%, the frit ink is composed of low-temperature frit powder and an ink solvent, the maximum particle size of the low-temperature frit powder is smaller than 1 micrometer, and D50 is 0.3-0.5 micrometer; the solid content of the quartz ink is 35%-48%, the quartz ink is composed of quartz powder and the ink solvent, the maximum particle size of the quartz powder is smaller than 1 micrometer, and D50 is 0.3-0.5 micrometer; the solid content of the aluminum oxide ink is 35%-48%, the aluminum oxide ink is composed of calcined aluminum oxide powder and the ink solvent, the maximum particle size of the calcined aluminum oxide powder is smaller than 1 micrometer, and D50 is 0.3-0.5 micrometer. Glass subjected to ink-jet printing through the glass ink composition is calcined and cooled to obtain decorative glass with the frosting effect, and the defect that traditional production is not environmentally friendly is overcome.

Description

Technical Field

[0001] The invention belongs to the technical field of decorative glass, and in particular relates to a frosted glass ink composition and a preparation method and application thereof. Background Art

[0002] With the development and growth of the decoration industry, art glass has become popular with people for its good light transmission, visibility, heat insulation, sound insulation, environmental protection and other decorative effects that cannot be replaced by other materials, adding vitality to space decoration. Gradient frosted glass is a new type of frosted glass that is continuously innovated and developed based on the traditional frosting process of flat glass. As the distribution of frosting particles changes, the frosting depth changes from thick to thin, thus presenting a visual effect from hazy to clear on the same piece of glass.

[0003] At present, the frosting effect of glass is mainly achieved by etching with hydrofluoric acid and hydrochloric acid. Acidic wastewater and fluorine-containing waste gas will inevitably be produced during the production process, which is not environmentally friendly and poses a great safety hazard. As one of the important development directions of glass surface decoration, the main research direction of glass inkjet printing technology is currently focused on the preparation and application of 6 color inks, but there is little research on using inkjet printing to achieve the frosting effect on the glass surface. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the above-mentioned prior art. To this end, the present invention proposes a frosted glass ink composition and a preparation method and application thereof. After calcining and cooling, the glass printed with the glass ink composition can obtain decorative glass with a frosted effect, which changes the disadvantage of traditional production that is not environmentally friendly.

[0005] According to a first aspect of the present invention, a glass ink composition is provided, comprising frit ink, quartz ink and alumina ink, wherein the mass ratio of the frit ink, quartz ink and alumina ink is (60-90): (5-30): (5-10); The solid content of the frit ink is 35% to 48%, and the ink is composed of low-temperature frit powder and ink solvent. The maximum particle size of the low-temperature frit powder is less than 1 μm, and D50 is 0.3 to 0.5 μm. The quartz ink has a solid content of 35% to 48%, and is composed of quartz powder and the ink solvent. The maximum particle size of the quartz powder is less than 1 μm, and D50 is 0.3 to 0.5 μm. The aluminum oxide ink has a solid content of 35% to 48%, and is composed of calcined aluminum oxide powder and the ink solvent. The maximum particle size of the calcined aluminum oxide powder is less than 1 μm, and D50 is 0.3 to 0.5 μm.

[0006] In some embodiments, the frit ink is obtained by mixing, grinding and filtering low-temperature frit powder and an ink solvent; and / or, the quartz ink is obtained by mixing, grinding and filtering quartz powder and the ink solvent; and / or, the alumina ink is obtained by mixing, grinding and filtering calcined alumina powder and the ink solvent.

[0007] In some embodiments, the ink solvent consists of an organic solvent, a dispersant, a resin, and a leveling agent; The organic solvent is at least one of diethylene glycol diethyl ether, diethylene glycol dimethyl ether, dipropylene glycol methyl ether, propylene glycol methyl ether acetate, diethylene glycol butyl ether acetate, ethylene glycol butyl ether, dipropylene glycol methyl ether, cyclohexanone or tetraethylene glycol dimethyl ether; and / or, the dispersant is a high molecular weight dispersant containing pigment-philic groups; And / or, the resin is at least one of polyethylene terephthalate, polyurethane, and polymethyl methacrylate; And / or, the leveling agent is at least one of polyacrylate or polyether-modified siloxane.

[0008] In the present invention, the pigment-philic group refers to a carboxyl group and / or an amino group, and the dispersant may preferably be HP2630 and / or BYK dispersant BYKJET-9131 from Huihong New Materials Chemical Co., Ltd.

[0009] In some embodiments, in the ink solvent, the ratio of the organic solvent, dispersant, resin and leveling agent is (85~90): (5~12): (2-5): (0.01~0.2).

[0010] In some embodiments, the raw materials for preparing the low temperature frit powder include the following components by mass percentage: Bi 2 O 3 40%~50%, SiO 2 25%~40%, Al 2 O 3 1%~3%, Li 2 O 1%~3%, Na 2 O 1%~2%, K 2 O 1%~5%, B 2 O 3 3%~8%, TiO 2 1%~4%, F 1%~3%, SnO 2 1%~4%. In the present invention, F refers to a fluorine-containing raw material, preferably NaF, AlF 3 or BaF 2 At least one of .

[0011] In some preferred embodiments, the low-temperature frit powder is obtained by mixing the raw materials according to a ratio, heating the mixture at 1100-1300° C. for 2-4 hours, then quenching with water, ball-milling, sieving, and drying.

[0012] In some more preferred embodiments, the sieve used for screening is 325 mesh.

[0013] In some embodiments, the viscosity of the frit ink, the quartz ink, and the alumina ink at 40° C. is independently 15 to 20 cps.

[0014] According to a second aspect of the present invention, a method for preparing the glass ink composition as described in the first aspect of the present invention is provided, comprising the following steps: mixing frit ink, quartz ink and alumina ink in proportion to obtain.

[0015] According to a third aspect of the present invention, a method for preparing decorative glass is provided, comprising the following steps: (1) printing glass ink onto a glass substrate, wherein the glass ink is selected from the glass ink composition described in the first aspect of the present invention; (2) The printed glass substrate is tempered to obtain decorative glass with a frosted effect.

[0016] In the present invention, the inorganic powder (quartz powder, calcined alumina powder) plays a role in adjusting the light transmittance, while the low-temperature frit powder plays a role as a connector. The composition ratio of quartz powder, calcined alumina powder and glass frit in the glass ink composition is different, and the light transmittance of the decorative glass obtained after printing and firing on the glass substrate is different, thereby producing different frosting effects.

[0017] In some embodiments, in step (1), the glass ink is printed onto the glass substrate using a glass inkjet printer equipped with a piezoelectric nozzle, wherein the piezoelectric nozzle is one of the Starlight 1024, Xaar 2001 or Seiko 1536 nozzles.

[0018] In some embodiments, in step (2), the temperature of the tempering treatment is 670-700° C., and the time of the tempering treatment is 1-3 min.

[0019] In some embodiments, the glass substrate is a flat glass substrate.

[0020] According to a fourth aspect of the present invention, a decorative glass is provided, which is prepared by the preparation method described in the third aspect of the present invention, and the light transmittance of the decorative glass is 5% to 30%.

[0021] In some embodiments, the light transmittance of the decorative glass is 5% to 20%. When the light transmittance of frosted glass is between 5% and 20%, the frosting effect is better.

[0022] According to one embodiment of the present invention, there are at least the following beneficial effects: (1) The present invention provides a glass ink composition for glass inkjet printing. The decorative glass obtained by using the glass ink composition has a frosted effect, does not need to adopt the traditional etching production process, and the production process is environmentally friendly and safe. At the same time, because the decorative glass is produced by glass inkjet printing, the production process is simplified and the production efficiency is also improved.

[0023] (2) The present invention adopts glass inkjet printing to prepare frosted glass, using inorganic powders such as quartz, alumina and special low-temperature glass frits, mixing ink solvents in a certain proportion, grinding and filtering to obtain glass ink; adjusting the different compositions of glass ink in the glass ink composition, the printed glass can produce different frosting effects after firing. Furthermore, the light transmission effect can be adjusted by adjusting the amount of inkjet or the proportion of inorganic powder, thereby obtaining decorative glass with a gradient frosting effect. At the same time, the inorganic powder used in the present invention is an inkjet printing material with very stable physical and chemical properties, so that ink with stable performance can be prepared and the stability of printing can be ensured. DETAILED DESCRIPTION The concept and technical effects of the present invention will be clearly and completely described below in conjunction with embodiments to fully understand the purpose, features and effects of the present invention.

[0024] Unless otherwise specified, the raw materials, reagents or devices used in the following examples can be obtained from conventional commercial sources or by existing known methods.

[0025] The frit ink used in Example 1-4 and Comparative Example 1-2 is prepared by the following method: mixing and grinding low-temperature frit powder with ink solvent, and filtering with a micron filter element. The maximum particle size of the particles in the frit ink is less than 1 μm, D50=0.3~0.5 μm, the solid content is 40%, and the viscosity (40°C) is 17 cps.

[0026] The raw materials (wt%) of the low temperature frit powder are: Bi 2 O 3 45%, SiO 2 30%, Al 2 O 3 3%, Li 2 O 3%, Na 2 O 2%, K 2 O4%, B 2 O 36%, TiO 2 3%, NaF 1%, SnO 2 3%; the above ingredients were melted at 1300°C for 3h, water quenched, ball milled, sieved through a 325-mesh sieve and dried to obtain low-temperature frit powder.

[0027] The quartz ink used in Examples 1-4 and Comparative Examples 1-2 was prepared by the following method: high-purity quartz powder (SiO 2 The maximum particle size of the particles in the quartz ink is less than 1μm, D50=0.3~0.5μm, the solid content is 42%, and the viscosity (40℃) is 17.8cps.

[0028] The alumina ink used in Examples 1-4 and Comparative Examples 1-2 is prepared by the following method: calcined alumina (industrial grade) is mixed and ground with an ink solvent, and filtered using a micron filter element. The maximum particle size of the particles in the alumina ink is less than 1 μm, D50 = 0.3-0.5 μm, the solid content is 40%, and the viscosity (40°C) is 17.4 cps.

[0029] The composition of the above-mentioned ink solvent is as follows: organic solvent accounts for 89.9wt% (including 50wt% of diethylene glycol diethyl ether, 15wt% of propylene glycol methyl ether acetate, and 24.9wt% of cyclohexanone), the dispersant is BYKJET-9131, accounting for 8wt%, the resin is Mitsubishi acrylic resin BR106, accounting for 2wt%, and the leveling agent is BYK-306, accounting for 0.1wt%.

[0030] Example 1 The present embodiment provides a frosted glass ink composition, which is obtained by mixing frit ink, quartz ink and alumina ink, wherein the mass ratio of the frit ink, quartz ink and alumina ink is 60:30:10.

[0031] The ink composition was inkjet printed on a flat glass substrate, and the printed glass substrate was placed in a common tempered glass furnace and tempered at 680° C. for 2 minutes to obtain a decorative glass with a frosted effect. The obtained decorative glass had a good frosted effect and a light transmittance of 5%.

[0032] Example 2 The present embodiment provides a frosted glass ink composition, which is obtained by mixing frit ink, quartz ink and alumina ink, wherein the mass ratio of the frit ink, quartz ink and alumina ink is 70:20:10.

[0033] The ink composition was inkjet printed on a flat glass substrate, and the printed glass substrate was placed in a common tempered glass furnace and tempered at 680° C. for 2 minutes to obtain a decorative glass with a frosted effect. The obtained decorative glass had a good frosted effect and a light transmittance of 10%.

[0034] Example 3 The present embodiment provides a frosted glass ink composition, which is obtained by mixing frit ink, quartz ink and alumina ink, wherein the mass ratio of the frit ink, the quartz ink and the alumina ink is 80:10:10.

[0035] The ink composition was inkjet printed on a flat glass substrate, and the printed glass substrate was placed in a common tempered glass furnace and tempered at 680° C. for 2 minutes to obtain a decorative glass with a frosted effect. The obtained decorative glass had a good frosted effect and a light transmittance of 15%.

[0036] Example 4 The present embodiment provides a frosted glass ink composition, which is obtained by mixing frit ink, quartz ink and alumina ink, wherein the mass ratio of the frit ink, quartz ink and alumina ink is 90:5:5.

[0037] The ink composition was inkjet printed on a flat glass substrate, and the printed glass substrate was placed in a common tempered glass furnace and tempered at 680° C. for 2 minutes to obtain a decorative glass with a frosted effect. The obtained decorative glass had a certain frosted effect and a high light transmittance of 20%.

[0038] Comparative Example 1 The frit ink is inkjet printed on a flat glass substrate, and the printed glass substrate is placed in a common tempered glass furnace and tempered at 680°C for 2 minutes to obtain decorative glass. The obtained decorative glass is light-transmissive and has no frosting effect.

[0039] Comparative Example 2 This comparative example provides a glass ink composition, which is obtained by mixing frit ink, quartz ink and alumina ink, wherein the mass ratio of the frit ink, quartz ink and alumina ink is 50:30:20.

[0040] The ink composition is inkjet printed on a flat glass substrate, and the printed glass substrate is placed in a common tempered glass furnace and tempered at 680° C. for 2 minutes to obtain decorative glass. The obtained decorative glass is opaque and has no frosting effect.

[0041] Comparative Example 3 This comparative example provides a screen printing ink, which is obtained by mixing frit ink (325 mesh), quartz ink (325 mesh) and alumina ink (325 mesh), wherein the mass ratio of the frit ink, the quartz ink and the alumina ink is 50:25:25.

[0042] The screen printing ink is printed on a flat glass substrate, and the printed glass substrate is placed in a common tempered glass furnace and tempered at 680° C. for 2 minutes to obtain decorative glass. The obtained decorative glass has low light transmittance and no frosting effect.

[0043] It can be seen from Examples 1-4 that as the proportion of frit ink in the glass ink composition increases, the light transmittance of the decorative glass increases and the frosting effect weakens. In Comparative Example 2, due to the low proportion of frit ink and the high proportion of inorganic powder ink, the decorative glass is opaque and has no frosting effect. It can be seen from Comparative Examples 2 and 3 that under the condition of a certain proportion of frit ink, adjusting the ratio of quartz ink to alumina ink can make the decorative glass have a certain light transmittance, but due to the large particle size of the powder in the frit ink, quartz ink and alumina ink, the decorative glass does not have a frosting effect.

[0044] The above is a detailed description of the embodiments of the present invention, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. A glass ink composition, characterized in that: It comprises frit ink, quartz ink and alumina ink, wherein the mass ratio of the frit ink, quartz ink and alumina ink is (60-90): (5-30): (5-10); The solid content of the frit ink is 35% to 48%, and the ink is composed of low-temperature frit powder and ink solvent. The maximum particle size of the low-temperature frit powder is less than 1 μm, and D50 is 0.3 to 0.5 μm. The quartz ink has a solid content of 35% to 48%, and is composed of quartz powder and the ink solvent. The maximum particle size of the quartz powder is less than 1 μm, and D50 is 0.3 to 0.5 μm. The aluminum oxide ink has a solid content of 35% to 48%, and is composed of calcined aluminum oxide powder and the ink solvent. The maximum particle size of the calcined aluminum oxide powder is less than 1 μm, and D50 is 0.3 to 0.5 μm.

2. The glass ink composition according to claim 1, characterized in that: The ink solvent is composed of an organic solvent, a dispersant, a resin and a leveling agent; The organic solvent is at least one of diethylene glycol diethyl ether, diethylene glycol dimethyl ether, dipropylene glycol methyl ether, propylene glycol methyl ether acetate, diethylene glycol butyl ether acetate, ethylene glycol butyl ether, dipropylene glycol methyl ether, cyclohexanone or tetraethylene glycol dimethyl ether; and / or, the dispersant is a high molecular weight dispersant containing pigment-philic groups; And / or, the resin is at least one of polyethylene terephthalate, polyurethane, and polymethyl methacrylate; And / or, the leveling agent is at least one of polyacrylate or polyether-modified siloxane.

3. The glass ink composition according to claim 2, characterized in that: In the ink solvent, the ratio of the organic solvent, dispersant, resin and leveling agent is (85-90): (5-12): (2-5): (0.01-0.2).

4. The glass ink composition according to claim 1, characterized in that: The raw materials for preparing the low-temperature frit powder include the following components by mass percentage: Bi2O3 40%~50%, SiO2 25%~40%, Al2O3 1%~3%, Li2O 1%~3%, Na2O 1%~2%, K2O 1%~5%, B2O3 3%~8%, TiO2 1%~4%, F 1%~3%, and SnO2 1%~4%.

5. The glass ink composition according to claim 4, characterized in that: The low-temperature frit powder is obtained by the following method: raw materials are mixed according to a proportion, the mixture is heated at 1100-1300° C. for 2-4 hours, and then the mixture is quenched with water, ball-milled, sieved, and dried.

6. The glass ink composition according to claim 1, characterized in that: The viscosity of the frit ink, the quartz ink and the alumina ink at 40° C. is independently 15 to 20 cps.

7. A method for preparing the glass ink composition according to any one of claims 1 to 6, characterized in that: The method comprises the following steps: mixing frit ink, quartz ink and alumina ink in proportion to obtain the product.

8. A method for preparing decorative glass, characterized in that: The following steps are involved: (1) printing glass ink onto a glass substrate, wherein the glass ink is selected from the glass ink composition according to any one of claims 1 to 6; (2) The printed glass substrate is tempered to obtain decorative glass with a frosted effect.

9. The preparation method according to claim 8, characterized in that: In step (2), the temperature of the tempering treatment is 670-700° C., and the time of the tempering treatment is 1-3 minutes.

10. A decorative glass, prepared by the preparation method according to any one of claims 8 to 9, characterized in that: The light transmittance of the decorative glass is 5% to 30%.