Pigment dispersant and pigment composition, pigment dispersion and printing ink using the same

A pigment dispersant and pigment composition technology, applied in the field of pigment dispersants, can solve the problems of no effect, no effect, no sufficient effect, etc., and achieve the effect of good color tone and excellent fluidity

Inactive Publication Date: 2007-03-14
TOYO INK SC HOLD CO LTD
7 Cites 2 Cited by

AI-Extracted Technical Summary

Problems solved by technology

However, although these compounds are effective when used with binders having acidic functional groups such as acrylic resins and alkyd resins, sufficient effects cannot be exhibited when naphthol pigments and azo condensation pigments are included in the pigments.
In addition, wh...
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Abstract

The present invention provides one kind of pigment dispersant. The pigment dispersant is used in printing ink and paint, and can reach excellent flowability, high dispersion stability, capacity of forming bright coating, etc. The pigment dispersant has the structure as shown.

Application Domain

InksCoatings +1

Technology Topic

Pigment compositionChemistry +4

Image

  • Pigment dispersant and pigment composition, pigment dispersion and printing ink using the same
  • Pigment dispersant and pigment composition, pigment dispersion and printing ink using the same
  • Pigment dispersant and pigment composition, pigment dispersion and printing ink using the same

Examples

  • Experimental program(7)

Example Embodiment

[0058] Manufacturing example 1
[0059] Add 15 parts of Pigment Red 166 to 300 parts of 99% sulfuric acid, and react at 25°C for 3 hours. The reaction liquid was poured into 3000 parts of ice water, stirred, filtered, and washed with a 2% aqueous hydrochloric acid solution. After making the obtained filter cake into a slurry with 700 parts of water, the pH was adjusted to 9 with sodium hydroxide. Then, it heated to 60°C, added 58 parts of 10% aluminum sulfate aqueous solution, stirred at 60°C for 1 hour, filtered, washed with water, and dried to obtain 18 parts of pigment dispersant (a). The average number of substituents for sulfonic acid groups is 1.8.

Example Embodiment

[0060] Manufacturing example 2
[0061] Change Pigment Red 166 to Pigment Red 214, at the same time, change the reaction temperature from 25°C to 30°C, and change 58 parts of 10% aluminum sulfate aqueous solution to 29 parts of 10% calcium chloride aqueous solution. 1 The same operation was performed to obtain 17 parts of pigment dispersant (b). The average number of substituents of the sulfonic acid group is 1.5.

Example Embodiment

[0062] Manufacturing example 3
[0063] Change Pigment Red 166 to Pigment Red 144, at the same time, change the reaction temperature from 25°C to 20°C, and change 58 parts of 10% aluminum sulfate aqueous solution to 33 parts of 10% ferrous sulfate aqueous solution. 1 The same operation was performed to obtain 18 parts of pigment dispersant (c). The average number of substituents of sulfonic acid groups is 1.2.

PUM

no PUM

Description & Claims & Application Information

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