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Preparation method of bright black ink for screen printing

A screen printing, bright black technology, applied in the field of printing ink, can solve the problem of ink usage restrictions, and achieve the effect of reducing surface tension, reducing dispersion time, and good adhesion

Active Publication Date: 2014-07-16
SUZHOU ANJIE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of these inks is increasingly restricted due to environmental, health and safety concerns

Method used

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  • Preparation method of bright black ink for screen printing
  • Preparation method of bright black ink for screen printing
  • Preparation method of bright black ink for screen printing

Examples

Experimental program
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Effect test

preparation example Construction

[0032] The bright black ink for screen printing of the present invention contains 20-25 parts by weight of Seiko 1000-800 varnish, 74-76 parts by weight of black pigment, 1.8-2.2 parts of transparent red pigment, and 13.5-14.5 parts by weight transparent blue pigment, 32.0-40.0 parts by weight of acrylic resin, 35.0-42.0 parts by weight of butyl glycidyl ether, 8.0-10.0 parts by weight of epoxy soybean oil, and 75-80 parts by weight of mixed solvent. Wherein, the mixed solvent is composed of n-butanol, n-butyl acetate and acetone; and the n-butanol is 35-40 parts by weight, the n-butyl acetate is 15-20 parts by weight, and the acetone is 15-20 parts by weight . And, the bright black ink is prepared by the following method, and the preparation method comprises the following steps:

[0033] (1) 35.0-42.0 parts by weight of butyl glycidyl ether and 30-35 parts by weight of mixed solvent are fully mixed and dissolved by stirring to prepare a dispersion solution;

[0034] (2) Wit...

Embodiment 1

[0039] The bright black ink for screen printing described in the present embodiment contains the following components in parts by weight:

[0040]

[0041] The viscosity of the ink is about 50,000 to 80,000 centipoise; when the color of the plasticized ink is expressed in Lab color mode, the range of L value is 25.95, the range of a value is -0.21, and the range of b value is - 0.22.

Embodiment 2

[0043] The bright black ink for screen printing described in the present embodiment contains the following components in parts by weight:

[0044]

[0045]

[0046] The viscosity of the ink is about 40,000 to 80,000 centipoise; when the color of the plasticized ink is expressed in Lab color mode, the range of L value is 25.95, the range of a value is -0.21, and the range of b value is - 0.22.

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Abstract

The invention relates to a preparation method of bright black ink for screen printing. The preparation method comprises the following steps: (1) fully mixing a diluent with part of mixed solvent in a stirring manner, and dissolving the diluent to prepare a disperse solution; (2) fully mixing pigments with the disperse solution in a stirring manner, and wetting the pigments to prepare first mixed liquor; (3) fully mixing a hardening agent with the remaining mixed solvent in a stirring manner, and dissolving the hardening agent to prepare second mixed liquor; (4) fully mixing the first mixed liquor, the second mixed liquor, gloss oil, plasticizers and optional additives in a stirring manner to obtain mixed feed liquor; (5) milling the mixed feed liquor by adopting a sand mill to obtain the ink with fineness less than 5mu m. By adopting the preparation method, the surface tension between the pigments and resin can be reduced, the wettability of the pigments and resin can be improved, the ink milling effect can be reinforced, the dispersion time can be reduced, and the ink has good brightening effect and proper viscosity.

Description

technical field [0001] The invention belongs to the technical field of printing ink, more specifically, the invention relates to a preparation method of bright black ink for screen printing. Background technique [0002] Ink is an important material for printing packaging materials. It expresses patterns and characters on the substrate through printing. The ink includes main components and auxiliary components. They are evenly mixed and rolled repeatedly to form a viscous colloidal fluid. Printing ink is a paste-like colloid formed by uniformly dispersing and mixing materials such as colorants, linking materials, additives, and solvents. The binder of solvent-based ink is composed of solid resin and a large amount of volatile organic solvent. After the solid resin is dissolved in the solvent, the coloring material is evenly dispersed in the binder, and after the ink is printed on the printing medium, the solvent quickly evaporates and dries the conjunctiva. [0003] For in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/107C09D11/03
Inventor 王春生
Owner SUZHOU ANJIE TECH
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