Preparation method of paratonere 22 for gel printing water-based color paste

A water-based color paste, pigment red technology, applied in dyeing methods, pigment pastes, chemical instruments and methods, etc., can solve the problems of poor water resistance, poor soaping fastness, easy migration of pigment particles, etc. The effect of good washing fastness, bright color and high color strength

Inactive Publication Date: 2016-12-21
SHANDONG SUNSHINE PIGMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The pigment red 22 water-based color paste prepared by the prior art is applied in the mastic printing, and the soaping fastness will be poor. Strong, pigment particles are prone to migration in water, resulting in poor water resistance of glue printing

Method used

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Examples

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Embodiment Construction

[0016] The technical solutions of the present invention will be further described below in conjunction with the examples.

[0017] A kind of preparation method of Pigment Red 22 for mastic printing water-based color paste according to the present invention is characterized in that it is realized by the following steps:

[0018] 1. Synthesis of Strong Red 22:

[0019] a. Preparation of diazonium liquid: 0.1mol of red base G, add 0.22mol of HCL, add 14mol of deionized water, after beating for half an hour, cool down to below 0°C, add 0.1mol of sodium nitrite, diazotization, continue Stir for 1h;

[0020] b. Preparation of coupling solution: prepare a solution of naphthol AS with nonionic surfactant and sodium hydroxide, wherein the HLB value of the nonionic surfactant needs to be between 12-13.5, specifically, use 15moL of Dissolve non-ionic surfactant in ionized water, add 0.22mol of sodium hydroxide, heat up to 100°C, add 0.1mol naphthol AS, dissolve and cool down to 30-50°C...

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Abstract

A preparation method of paratonere 22 for gel printing water-based color paste is implemented by the following steps: preparing a diazonium salt solution by the use of Scarlet Base G, preparing a Naphthol AS solution by the use of a nonionic surfactant and sodium hydroxide, preparing a pigment by a positive coupling method, and heating for pigment transformation. HLB vale of the nonionic surfactant is required to be within 12-13.5. The prepared pigment has high coloration and bright color. According to the preparation method of the paratonere 22 for gel printing water-based color paste, the nonionic surfactant with low hydrophilicity is used for preparation of a coupling liquid. The coupled pigment has large particles, and the prepared pigment has high coloration and bright color. In addition, hydrophilicity of the pigment is not strong. When the prepared water-based color paste is used for gel printing, there is no bleeding phenomenon, and washing fastness is good.

Description

technical field [0001] The invention relates to a method for preparing organic pigments, in particular to a method for preparing Pigment Red 22 for water-based color paste for mastic printing. Background technique [0002] The pigment red 22 water-based color paste prepared by the prior art is applied in the mastic printing, and the soaping fastness will be poor. Strong, pigment particles are prone to migration in water, resulting in poor water resistance of glue printing. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a method for preparing Pigment Red 22 for mastic printing water-based color paste. The coupling solution is prepared by using a non-ionic surface active agent with weak hydrophilicity. Afterwards, the particles of the pigment are relatively large, and the prepared pigment has high color strength and bright colors, and the pigment is not very hydrophilic. After preparing th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B29/20C09B67/20C09D17/00D06P1/04D06P3/60
CPCC09B29/20C09B67/0015C09B67/0022C09B67/0065C09D17/003D06P1/04D06P3/60
Inventor 张开瑞杨双灵高冬云
Owner SHANDONG SUNSHINE PIGMENT CO LTD
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