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Specially prepared polish oil for silk-screen printing and preparation process of polish oil

A technology of dimming and screen printing, applied in ink, household appliances, applications, etc., can solve the problems of insufficient adhesion, inability to use in large quantities, easy to drop ink, etc., and achieve the effect of meeting environmental protection requirements.

Inactive Publication Date: 2014-07-30
浙江华丽达包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Although the existing screen printing varnish can meet the quality requirements in terms of screen printing performance, when offset printing UV ink is used as the printing substrate, its adhesion is obviously not enough, the ink is easy to fall off, there is a quality risk, and it cannot be used in large quantities.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] This embodiment provides a special varnish for silk screen printing, its mass percentage ratio is: 10.5% of acrylic resin, 31.6% of chlorinated ether resin, 15% of ketone solvent, 36.5% of ester solvent, 5% of benzene solvent, auxiliary Agent 0.8%, wax 0.6%.

[0021] Among them, ketone solvents, ester solvents, benzene solvents and additives are the same as those used in existing screen printing varnishes. For example, cyclohexanone CYC can be used for ketone solvents, CAC can be used for ester solvents, and CAC can be used for benzene solvents. Trimethylbenzene S-100 is used, and defoamer and leveling agent can be used as additives.

[0022] The preparation process of the above-mentioned screen printing special varnish is as follows:

[0023] The first step, after weighing the ketone solvent, ester solvent and benzene solvent according to the above ratio, add it into the reaction pot and stir evenly at a low speed, the speed is about 500 rpm;

[0024] The second step...

Embodiment 2

[0028] The difference between this example and Example 1 is that the mass percentage ratio of silk screen printing special varnish is: 8% of acrylic resin, 33% of chloroether resin, 13% of ketone solvent, 38.6% of ester solvent, 6% of benzene solvent %, additives 0.4%, wax 1%. Its preparation process is with embodiment 1.

[0029] Example 2

[0030] The difference between this example and Example 1 is that the mass percentage ratio of the screen printing special varnish is: 12% of acrylic resin, 28% of chloroether resin, 17% of ketone solvent, 37.8% of ester solvent, 3% of benzene solvent %, additives 1.2%, wax 1%. Its preparation process is with embodiment 1.

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PUM

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Abstract

The invention provides specially prepared polish oil for sink-screen printing. The polish oil is characterized by comprising, by mass, 8-12% of acrylic resin, 28-33% of chloric ether resin, 13-17% of ketones solvent, 34-39% of esters solvent, 3-6% of benzenes solvent, 0.4-1.2% of additives and 0.6-1% of wax. In another technical scheme, the invention provides a preparation process of the specially prepared polish oil for silk-screen printing. With the specially prepared polish oil for silk-screen printing, printing can be implemented on substrates utilizing offset printing UV (ultraviolet) ink as a printing stock. The specially prepared polish oil for silk-screen printing is environment-friendly and meets environmental protection requirements better since use of the benzenes solvent can be controlled to some degree.

Description

technical field [0001] The invention relates to a screen printing varnish and a preparation process of the screen printing varnish. Background technique [0002] The mass percentage ratio of traditional screen printing varnish is: 31.6% acrylic resin, 10.5% vinyl acetate resin, 5.7% ketone solvent, 31.4% ester solvent, 20% benzene solvent and 0.8% additive. [0003] The preparation process of above-mentioned silk screen varnish is: [0004] The first step is to weigh the ketone solvent, ester solvent and benzene solvent according to the above ratio, and then add it to the reaction pot and stir evenly at a low speed. The speed is generally controlled at about 500 rpm; [0005] The second step is to add acrylic resin and vinyl chloride resin into the reaction pot according to the above ratio, and stir while adding to prevent agglomeration; [0006] The third step is to stir at a high speed after the feeding is completed. The stirring speed is generally controlled at about 15...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/106C09D11/033C09D11/03C09D11/102C09D11/107
Inventor 符元付
Owner 浙江华丽达包装有限公司