General purpose color paste for solvent ink

A color paste and solvent technology, applied in the field of printing solvent ink, can solve the problems of low dispersion efficiency, large color difference, long production cycle, etc., and achieve the effect of reducing the amount of color paste in stock, high color concentration and gloss, and simplifying the production process

Inactive Publication Date: 2007-12-12
上海彩生色料化学股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this method are: the color matching is not accurate; the batch color of the ink fluctuates greatly, and the color difference between each batch of products is large, which brings great difficulty to the color matching work; various pigments cannot be fully dispersed, and cannot Give full play to the best performance of various pigments; low dispersion efficiency and small production capacity; heavy equipment cleaning workload and waste when turning colors; large inventory and large capital occupa

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1: Solvent ink universal color paste black

[0036] Rolled carbon black P.BK.7 35%;

[0037] Cyclohexanone-formaldehyde condensation resin 26%;

[0038] Ethyl acetate 32%;

[0039] Dispersant A 7%.

Embodiment 2

[0040] Embodiment 2: Solvent ink universal color paste white

[0041] Rutile titanium dioxide 80%;

[0042] Cyclohexanone-formaldehyde condensation resin 8%;

[0043] Ethyl acetate 11%;

[0044] Dispersant B 1%.

example 3

[0045] Example 3: Solvent Ink Universal Colorant Medium Yellow

[0046] Benzidine Yellow P.Y.14 40%

[0047] Cyclohexanone-formaldehyde condensation resin 25%

[0048] Ethyl acetate 32%

[0049] Dispersant B 3%.

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PUM

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Abstract

The invention relates to a generally used color for printing ink. It is characterized in that comprised material and their weight proportion are as follows: pigment 25- 80%, keto-aldehyde resin 5- 32%, ester solvent 10- 40%, dispersing agent A 1- 9% or dispersing agent B 1- 6%, surface processing agent 0- 5%. Said keto-aldehyde resin is characterized by high softening point, outstanding pigment wetting property and soluble property, and good compatiablility with various resins, solvents and adjuvants, and it includes nadone- polyacetal, fat acetal resin, acetyl benzene- acetal resin and etc. The invention is characterized by good color compatability, metering injection way, suitability for factory or shop color mixing, strict control for color phase, color strength and flow index, and high color concentration.

Description

technical field [0001] The invention relates to a solvent ink for printing, in particular to a color paste used in the solvent ink. Background technique [0002] Solvent inks are mostly used for plastic film printing. They can be used for gravure surface printing, gravure back printing, letterpress and other printing methods through volatilization and drying. They are suitable for printing on various processed polypropylene (PP) / polyethylene (PE) / Polyester (PET) / polyvinyl chloride (PVC) / polystyrene (PS) plastic film and aluminum foil, paper, woven bag, etc. According to the resin system, solvent ink can be divided into: PA polyamide system, NC nitrocellulose system, chlorinated vinegar system, PU polyurethane system, PVB polyvinyl butyral system, CPP chlorinated polypropylene system, etc.; Divided into: benzene-soluble type, ketone-ester-soluble type, and alcohol-soluble type. The color of solvent ink should be able to meet the requirements of color printing of various pa...

Claims

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Application Information

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IPC IPC(8): C09D17/00C09D11/00
Inventor 余祥辉虞幸芝徐惠仙郑学钢张银方陈娟
Owner 上海彩生色料化学股份有限公司
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