Resin gold paste suitable for the process of printed transfer and its application on decorated porcelain

Abstract

The application discloses a resin gold paste suitable for a printing transfer process, wherein the resin gold paste is composed of the following components in mass fraction: 20-50% of vulcanized benzoin gold, 0.5-3% of bismuth cyclopentanate, 0.1-1% of copper isooctanoate, 0.1-1% of rhodium isooctanoate, 5-30% of a high polymer resin, 0.3-4% of an additive and the rest of a solvent; the additive is composed of an additive A and an additive B, the additive A is one or more of polyethylene wax paste, polyamide wax paste, bentonite and hydrogenated castor oil, the additive B is one or more of a silicone lubricant, stearic acid amide and oleamide, and the mass ratio of the additive A to the additive B is 1:0.3-0.4. The resin gold paste is particularly suitable for the printing transfer process, has good printing performances such as rheological properties and screen passing properties, effectively reduces the phenomena of plate sticking, screen blocking and broken lines during continuous printing, and has high printing resolution, and is particularly suitable for being used as the resin gold paste for the printing transfer process.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of thin film electronic paste, in particular, to a novel resin gold paste suitable for printing transfer process and its application on decorative porcelain. BACKGROUND

[0002] Gold paste and gold water are still one of the important materials for the decoration of porcelain, fine pottery and glass products. The adopted process includes hand drawing and printing transfer process. The traditional gold paste and gold water have poor rheological properties, and have over screen difference in printing transfer process. When continuously printing, the paste often appears to be stuck to the plate, broken line and other adverse phenomena. The defective patterns are transferred to the porcelain, and after sintering, the patterns have defects, which seriously affect the decoration effect of the porcelain.

[0003] The resin gold paste prepared by the prior art widely has poor rheological properties, poor over screen property, is easy to stick to the plate and to be broken and blocked when continuously printing, and is not easy to be transferred in the printing transfer process, which causes pattern defects and affects the decoration effect of the porcelain. SUMMARY

[0004] The purpose of the present application is to provide a resin gold paste, which is particularly suitable for printing transfer process, has good printing performance such as rheological properties and over screen property, effectively reduces the phenomena of sticking to the plate, blocking and broken line when continuously printing, and has high printing resolution.

[0005] In order to achieve the above purpose, in one aspect, the present application provides a resin gold paste suitable for printing transfer process, wherein the resin gold paste is composed of the following components with mass fraction: 20-50% of vulcanized balsam gold, 0.5-3% of bismuth cyclopentanate, 0.1-1% of copper isooctanoate, 0.1-1% of rhodium isooctanoate, 5-30% of high molecular resin, 0.3-4% of auxiliary agent and the balance of solvent; the auxiliary agent is composed of auxiliary agent A and auxiliary agent B, auxiliary agent A is one or more of polyethylene wax paste, polyamide wax paste, bentonite and hydrogenated castor oil, auxiliary agent B is one or more of silicone lubricant, stearic acid amide and oleamide, and the mass ratio of auxiliary agent A to auxiliary agent B is 1:0.3-0.4.

[0006] In the present application, preferably, the resin gold paste is composed of the following components with mass fraction: 25-50% of vulcanized balsam gold, 1-3% of bismuth cyclopentanate, 0.1-1% of copper isooctanoate, 0.1-1% of rhodium isooctanoate, 19-30% of high molecular resin, 2.5-4% of auxiliary agent and the balance of solvent; the auxiliary agent is composed of auxiliary agent A and auxiliary agent B, auxiliary agent A is one or more of polyethylene wax paste, polyamide wax paste, bentonite and hydrogenated castor oil, auxiliary agent B is one or more of silicone lubricant, stearic acid amide and oleamide, and the mass ratio of auxiliary agent A to auxiliary agent B is 1:0.3-0.4.

[0007] The inventors of the present application found in research that by using a combination of additives with a specific composition, the thixotropic index of the slurry can be adjusted to 3-5, and under this condition, the slurry can maintain good performance and has good printing performance. The resin gold paste has significantly improved printing over the screen when printing on the printing paper, and the printing resolution is significantly improved, effectively reducing the phenomenon of plate sticking, screen blocking and broken lines during continuous printing.

[0008] In the present application, preferably, the preparation of the sulfurized benzoin gold comprises: (1) contacting terpineol and sulfur powder; (2) mixing the above-mentioned sulfurized benzoin and chloroauric acid to obtain sulfurized benzoin gold. The mass fraction of sulfur powder in the total reactants in the contacting reaction can be 10-15%. The contacting reaction conditions can include: reaction temperature 140-150℃, reaction time 4-5 hours.

[0009] In the present application, the mixing reaction conditions include: reaction temperature 40-60℃, reaction time 2-6 hours. Further preferably, in the mixing reaction, chloroauric acid is first dissolved in isopropyl alcohol and then mixed with sulfurized benzoin; the gold content in the sulfurized benzoin gold obtained by the second contacting reaction is 30-50%.

[0010] On the other hand, the present application also provides the use of the resin gold paste prepared by the above-mentioned preparation method in the decoration of porcelain. The resin gold paste is used for silk screen printing to print fine patterns on the printing paper, dried, and then transferred to porcelain, the paper is removed, and the sintered gold yellow mirror surface decoration porcelain is obtained. The sintered gold layer has high density, no broken lines, no burrs on the edges of the lines, excellent mirror effect, and greatly improved porcelain decoration effect.

[0011] By the above technical solution, the sulfurized benzoin and chloroauric acid are mixed to prepare sulfurized benzoin gold, which is matched with resin bismuth acid, resin copper acid, resin rhodium acid, and other resin acid salt systems, high molecular resins, organic solvents, and then combined with additives to prepare resin gold paste. The rheological properties of the resin gold paste can be significantly improved, the thixotropic index is 3-5, the printing resolution is significantly improved in the printing transfer process, the printing over the screen is significantly improved when printing on the printing paper, effectively reducing the phenomenon of plate sticking, screen blocking and broken lines during continuous printing; the sintered gold yellow mirror surface decoration porcelain has high density of the sintered gold layer, no broken lines, no burrs on the edges of the lines, excellent mirror effect, and greatly improved porcelain decoration effect, which has great application value.

[0012] Other features and advantages of the present application will be described in detail in the following specific embodiments. DETAILED DESCRIPTION

[0013] The specific embodiments of the present application are described in detail below. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application.

[0014] The application will be described in detail by examples. In the following examples, the gold content test method is as follows: 0.3 g of black paste sulfidized balm gold is placed in a ceramic crucible, which is placed in a sintering furnace, the heating rate is 80℃ / min, the peak temperature is 850℃, and the holding time is 10 min. Then the total mass of the crucible and gold is weighed, the mass of the crucible is cut off, and the mass of the sulfidized balm gold is divided by the total mass of the crucible and gold to obtain the gold content.

[0015] Example 1

[0016] A resin gold paste suitable for the printing transfer process, which is composed of the following mass fractions of components: 26.67% sulfidized balm gold, 1% bismuth cyclopentanate, 0.1% copper isooctanoate, 0.1% rhodium isooctanoate, 30% high molecular resin, 4% auxiliary agent, and the balance solvent; the auxiliary agent is composed of auxiliary agent A and auxiliary agent B, auxiliary agent A is polyamide wax paste, auxiliary agent B is organic silicon lubricant, and the mass ratio of auxiliary agent A to auxiliary agent B is 1:0.333. After removing the loss, 18 g of uniform resin gold paste, black viscous liquid, is obtained, the viscosity is 23 pa.s, the thixotropic index is 3.5, and the gold content is 8%.

[0017] The preparation of the sulfidized balm gold includes: (1) 85 g of pine oil alcohol and 15 g of sulfur powder are added to a three-necked flask, and refluxed at 150℃ for 4 hours, and 100 g of sulfidized balm with a sulfur content of 15% is obtained after cooling; (2) 3.4 g of chloroauric acid is dissolved in 20 mL of isopropyl alcohol, and 4.6 g of the above sulfidized balm is added dropwise, and reacted at 50℃ for 6 h at 600 rpm, filtered, and washed with ethanol to remove chloride ions, to obtain 5 g of brown-black paste sulfidized balm gold with a gold content of 30%.

[0018] Example 2

[0019] A resin gold paste suitable for the printing transfer process, which is composed of the following mass fractions of components: 26.67% sulfidized balm gold, 1% bismuth cyclopentanate, 0.1% copper isooctanoate, 0.1% rhodium isooctanoate, 30% high molecular resin, 4% auxiliary agent, and the balance solvent; the auxiliary agent is composed of auxiliary agent A and auxiliary agent B, auxiliary agent A is polyamide wax paste, auxiliary agent B is organic silicon lubricant, and the mass ratio of auxiliary agent A to auxiliary agent B is 1:0.333. After removing the loss, 18 g of uniform resin gold paste, black viscous liquid, is obtained, the viscosity is 23 pa.s, the thixotropic index is 3.5, and the gold content is 8%.

[0020] The preparation of the sulfurized balsam gold comprises: (1) adding 85 g of terpineol and 15 g of sulfur powder into a three-necked flask, refluxing at 150 °C for 4 hours, and obtaining 100 g of sulfurized balsam with a sulfur content of 15% after cooling; (2) dissolving 3.4 g of chloroauric acid into 20 mL of isopropyl alcohol, adding 4.6 g of the above-mentioned sulfurized balsam dropwise, reacting at 50 °C under 600 rpm for 6 h, filtering, and washing with ethanol to remove chloride ions, and obtaining 5 g of brownish black paste-like sulfurized balsam gold with a gold content of 30%.

[0021] Example 3

[0022] A resin gold paste suitable for the printing transfer process, which is composed of the following mass fractions of ingredients: 50% of sulfurized balsam gold, 3% of bismuth cyclopentanate, 1% of copper isooctanoate, 1% of rhodium isooctanoate, 19.5% of high molecular resin, 2.8% of auxiliary agent, and the balance of solvent; the auxiliary agent is composed of auxiliary agent A and auxiliary agent B, auxiliary agent A is polyethylene wax paste, auxiliary agent B is oleamide, and the mass ratio of auxiliary agent A to auxiliary agent B is 1:0.4. After removing the loss, 19 g of uniform resin gold paste is obtained, which is a black viscous liquid, the viscosity is 60 pa.s, the thixotropic index is 4.8, and the gold content is 15%.

[0023] The preparation of the sulfurized balsam gold comprises: (1) adding 85 g of terpineol and 15 g of sulfur powder into a three-necked flask, refluxing at 150 °C for 4 hours, and obtaining 100 g of sulfurized balsam with a sulfur content of 15% after cooling; (2) dissolving 3.4 g of chloroauric acid into 20 mL of isopropyl alcohol, adding 4.6 g of the above-mentioned sulfurized balsam dropwise, reacting at 50 °C under 600 rpm for 6 h, filtering, and washing with ethanol to remove chloride ions, and obtaining 5 g of brownish black paste-like sulfurized balsam gold with a gold content of 30%.

[0024] Comparative Example 1

[0025] The resin gold paste is as in Example 1, except that no auxiliary agent is added. 18 g of uniform resin gold paste is obtained, which is a black viscous liquid, the viscosity is 14 pa.s, the thixotropic index is 1.5, and the gold content is 8%.

[0026] Comparative Example 2

[0027] The resin gold paste is as in Example 1, except that the amount of hydrogenated castor oil added is 1.2 g and the amount of stearic acid amide added is 0.6 g. 29 g of uniform resin gold paste is obtained, which is a black viscous liquid, the viscosity is 65 pa.s, the thixotropic index is 6, and the gold content is 10%.

[0028] Test Example

[0029] The resin gold paste of Examples 1-3 and Comparative Examples 1-2 is printed on a printing paper using a 300-mesh screen to form a 0.1-mm wide and 10-cm long line, dried at 120°C for 10 min, and then transferred to the surface of a porcelain, stripped, and placed in a sintering furnace at 850°C for 10 min, with a heating rate of 80°C / min, to obtain a sintered line, and the line is observed under a microscope for broken lines, edge burrs, and mirror effect; wherein the detection equipment is a Brookfield HB-DV2T viscometer, a WSD-J1202 screen printing machine, and an optical microscope. The test results are shown in Table 1.

[0030] Table 1

[0031]

[0032] In summary, the present application provides a resin gold paste suitable for printing transfer process, which is prepared by mixing vulcanized mastic and chloroauric acid to prepare vulcanized mastic gold, and then adding resin bismuth, resin copper, resin rhodium, and other resin acid salt systems, high molecular resins, organic solvents, and combined additives. The resin gold paste can significantly increase the rheological properties and thixotropic index to 3-5, and the printing resolution is significantly improved in the printing transfer process. The printing on the printing paper has significantly improved printing over the net, effectively reducing the phenomenon of continuous printing, such as plate sticking, screen blocking, and broken lines. The sintered gold yellow mirror decorative porcelain has high gold layer density, no broken lines, no burrs on the edge of the line, and excellent mirror effect, greatly improving the decorative effect of the porcelain, and having great application value.

[0033] The above describes the preferred embodiments of the present application in detail, but the present application is not limited to the specific details in the above embodiments, and various simple modifications can be made to the technical solutions of the present application within the technical concept of the present application, and these simple modifications all belong to the protection scope of the present application.

Claims

1. A resin gold paste suitable for a stamping transfer printing process, characterized in that, The resin gold paste is composed of the following components in mass fraction: 25-50% of sulfided balsam gold, 1-3% of bismuth cyclopentanate, 0.1-1% of copper isooctanoate, 0.1-1% of rhodium isooctanoate, 19-30% of high molecular resin, 2.5-4% of auxiliary agent and the balance of solvent; the auxiliary agent is composed of auxiliary agent A and auxiliary agent B, the auxiliary agent A is one or more of polyethylene wax paste, polyamide wax paste, bentonite and hydrogenated castor oil, the auxiliary agent B is one or more of silicone lubricant, stearic acid amide and oleamide, the mass ratio of the auxiliary agent A to the auxiliary agent B is 1:0.3-0.4; the thixotropy index of the resin gold paste is 3-5; The preparation of the sulfided balsam gold comprises: (1) performing contact reaction on terpineol and sulfur powder to obtain sulfided balsam; (2) performing mixing reaction on the sulfided balsam and chloroauric acid to obtain sulfided balsam gold; the mass fraction of the sulfur powder in the total reactants in the contact reaction is 10-15%; the contact reaction conditions comprise: the reaction temperature is 140-150 ℃, and the reaction time is 4-5 hours; the mixing reaction conditions comprise: the reaction temperature is 40-60 ℃, and the reaction time is 2-6 hours; in the mixing reaction, the chloroauric acid is first dissolved in isopropyl alcohol and then mixed with the sulfided balsam; the gold content in the sulfided balsam gold obtained by the mixing reaction is 30-50%.

2. Application of the resin gold paste suitable for the printing transfer process of claim 1 on decorated porcelain.

Images