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Coated pigment composition and production method thereof

A technology for a pigment composition and a manufacturing method, applied in the directions of organic dyes, inks, household appliances, etc., can solve the problems of reduced color concentration and insufficient resolubility, and achieve the effects of high color concentration and high resolubility

Inactive Publication Date: 2017-04-19
DIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pigments or pigment compositions proposed in these cited documents do not have sufficient resolubility, and when alkalis and polymers other than pigments are added, the color density decreases.

Method used

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  • Coated pigment composition and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] 9.0 parts of coated pigment 1 obtained in Production Example 3, 14.0 parts of toluene-free polyurethane resin (Sanprene IB-501, manufactured by Sanyo Chemical Industry Co., Ltd.), 1.5 parts of vinyl chloride- Chlorovinyl acetate resin of vinyl acetate copolymer, 3 parts of methyl ethyl ketone, 3 parts of ethyl acetate, 14 parts of propyl acetate, 2 parts of isopropanol, 180 parts of 3mmφ steel balls, with a paint conditioner (Toyo Seiki Co., Ltd.) was dispersed for 60 minutes to obtain a pigment dispersion liquid. Further, 16 parts of toluene-free polyurethane resin (Sanprene IB-501, manufactured by Sanyo Chemical Industry Co., Ltd.), 33 parts of propyl acetate, and 4.5 parts of isopropanol were added to the pigment dispersion, and dispersed for 5 minutes with a paint conditioner. , to obtain gravure ink 1.

Embodiment 2

[0090] In the operation of Example 1, except that the coated pigment 1 was changed to the coated pigment 2, the same operation as in Example 1 was carried out, and the gravure ink 2 was obtained.

Embodiment 3

[0092] In the operation of Example 1, except that the coated pigment 1 was changed to the coated pigment 3, the same operation as in Example 1 was carried out, and the gravure ink 3 was obtained.

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Abstract

The present invention provides a coated pigment composition and a production method thereof, wherein the coated pigment composition is used as a red coloring material for gravure ink so as to provide the high coloring concentration and achieve sufficient re-solubility. According to the present invention, the coated pigment composition contains a C.I. pigment red 146 and a C.I. pigment red 57:1, wherein the C.I. pigment red 146 covers the C.I. pigment red 57:1; and with the application of the C.I. pigment red 57:1 coated with the C.I. pigment red 146 as the red coloring agent of the gravure ink for packaging, the coloring concentration is high and the re-solubility is high so as to inhibit the blocking during continuous printing so as to complete the technical scheme.

Description

technical field [0001] The present invention relates to a coated pigment composition of C.I. Pigment Red 57:1 coated with C.I. Pigment Red 146 having high resolubility when using gravure ink for packaging, and a method for producing the coated pigment composition. Background technique [0002] In general, C.I. Pigment Red 57:1 color tone is preferable as a red pigment used in gravure inks, but because of its poor resolvability, boiling resistance, and retort resistance due to its structure, expensive C.I. pigments are used Red 146. However, in recent years, for the purpose of cost reduction, the use of inexpensive C.I. Pigment Red 57:1 has been strongly desired in the use of gravure inks for snack packaging applications that do not require boiling resistance or retort resistance. [0003] However, the conventional C.I. Pigment Red 57:1 has low resolubility, so it cannot be used even for applications such as gravure inks for snack packaging that do not require boiling resist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/08C09B67/20C09D11/037
CPCC09B67/0008C09B67/0079C09B68/463C09D11/037
Inventor 工藤新吉淑梅
Owner DIC CORP
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