Method for preparing high-transparency high-strength pigment yellow 155 for water-based ink and water-based paint

A technology of pigment yellow and transparency, applied in the field of pigments, can solve the problems of insufficient strength, low tinting strength, unsuitable for application in water-based systems, etc., and achieve the effects of good rheological properties, good transparency and high strength
CN103275518AActive Publication Date: 2013-09-04ANSHAN HIFICHEM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ANSHAN HIFICHEM CO LTD
Publication Date
2013-09-04

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Abstract

The invention relates to a method for preparing high-transparency high-strength C.I. pigment yellow 155 (3GW) for water-based ink and water-based paint. According to the method, a diazo salt is obtained through diazotizing 2-amino dimethyl terephthalate in the presence of a transparent regulating substance and is coupled with a coupling component, namely diacetyl-acetyl-p-phenylenediamine, under appropriate conditions so as to obtain a crude pigment, and the crude pigment is subjected to pigmentation and surface treatment so as to obtain a yellow organic pigment with high transparency and high coloration strength. The pigment yellow is applied to water-based ink and water-based paint and has the advantages of good transparency, high strength and good rheological properties.
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Description

technical field

[0001] The invention relates to a pigment, in particular to C.I. Pigment Yellow 155 (3GW), a yellow organic pigment with high transparency and high strength for water-based ink and water-based paint, and a preparation method thereof. Background technique

[0002] C.I. Pigment Yellow 155 is a bright green yellow organic pigment with high tinting strength, good solvent resistance, acid and alkali resistance, and is a cost-effective variety. It does not contain prohibited aromatic amines and has no potential for human body harm. Different brand names in the past can be applied to oil-based paints, plastic coloring, and can also be used for water-based inks and water-based paints. The chemical structure of C.I. Pigment Yellow 155 belongs to the azo condensation pigment, and its chemical structural formula is as follows:

[0003]

[0004] The conventional preparation method of C.I. Pigment Yellow 155 is: at 22°C, mix 120 parts (volume) of 31% hydrochloric aci...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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