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Preparation method of pigment preparations containing superfine phthalocyanine pigment particles

A technology of pigment preparation and phthalocyanine pigment, applied in the direction of organic dyes, etc., can solve the problems of large particle size, poor adsorption, wide distribution, etc., and achieve the effects of simple and easy preparation method, avoiding large particle size and simple use method

Active Publication Date: 2012-07-04
SUZHOU SUNMUN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As far as phthalocyanine pigments are concerned, due to the low polarity of the surface of phthalocyanine pigments, it is difficult to carry out surface treatment on the pigments. Large particle pigment preparations often have large particle size and wide distribution of pigment particles, agglomeration of pigment particles, pigment sedimentation and flocculation during use, etc.

Method used

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  • Preparation method of pigment preparations containing superfine phthalocyanine pigment particles
  • Preparation method of pigment preparations containing superfine phthalocyanine pigment particles
  • Preparation method of pigment preparations containing superfine phthalocyanine pigment particles

Examples

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Comparison scheme
Effect test

Embodiment 1

[0048] Pigment preparations were prepared as follows:

[0049] a). Take 1000 grams of 98.0wt.% concentrated sulfuric acid, put in 200 grams of phthalocyanine blue (P.B.15:1) pigment at 35°C and a stirring speed of 300r / min for dispersion, and dissolve the pigment completely to form a homogeneous solution Finally, filter the pigment solution with a glass filter element filter bucket to obtain a homogeneous pigment solution, wherein the phthalocyanine blue comes from Jiangsu Shuangle Chemical Pigment Co., Ltd.;

[0050] b). The homogeneous pigment solution obtained in step a) and 0.4 gram of phthalocyanine derivative A are added to 1000 gram of dispersant aqueous solution (this dispersant aqueous solution contains 50 gram of dispersant DS-A, and the balance is deionized water), Disperse at a stirring speed of 70°C and 300r / min for 20 minutes until the dispersion is uniform, then lower it to 45°C, keep the temperature and let stand for 3 hours to facilitate the precipitation of the...

Embodiment 2

[0055] Pigment preparations were prepared as follows:

[0056] a). Take 1000 grams of 90wt.% concentrated sulfuric acid, at 70 ° C and a stirring speed of 1000r / min, drop into 400 grams of phthalocyanine green (P.G.7) pigments to disperse, after the pigments are completely dissolved to form a homogeneous solution, use Filter the pigment solution with a glass filter hopper to obtain a homogeneous pigment solution, in which the phthalocyanine blue comes from Jiangsu Shuangle Chemical Pigment Co., Ltd.;

[0057] b). The homogeneous pigment solution obtained in step a) and 4 grams of phthalocyanine derivatives B are added to 2000 grams of dispersant aqueous solution (the dispersant aqueous solution contains 100 grams of dispersant DS-B, and the balance is deionized water), Disperse at a stirring speed of 95°C and 300r / min for 20 minutes until the dispersion is uniform, then lower it to 55°C, keep the temperature and let stand for 8 hours to facilitate the precipitation of the prod...

Embodiment 3

[0062] Pigment preparations were prepared as follows:

[0063] a). Take 1000 grams of 95.0wt.% concentrated sulfuric acid, put in 300 grams of phthalocyanine blue (P.B.15:3) pigment at 55°C and a stirring speed of 300r / min for dispersion, and dissolve the pigment completely to form a homogeneous solution Finally, filter the pigment solution with a glass filter element filter bucket to obtain a homogeneous pigment solution, wherein the phthalocyanine blue comes from Shanghai Jiehong Pigment Chemical Group Co., Ltd.;

[0064] b). The homogeneous pigment solution obtained in step a) and 6 grams of phthalocyanine derivative C are added to 2000 grams of dispersant aqueous solution (the dispersant aqueous solution contains 50 grams of dispersant DS-B, and the balance is deionized water), Disperse at 80°C and a stirring speed of 300r / min for 20 minutes until the dispersion is uniform, then lower to 50°C, keep the temperature and let stand for 3 hours to facilitate product precipitati...

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Abstract

The invention discloses a preparation method of pigment preparations containing superfine phthalocyanine pigment particles. According to the preparation method, auxiliary agents such as phthalocyanine pigments, phthalocyanine derivatives and dispersing agents are used as raw materials to be prepared into the pigment preparations containing the superfine phthalocyanine pigment particles through multiple-time dissolution, precipitation and filtering processes and then through tablet making and drying. The pigment preparations can be stably dispersed through simple stirring in a waterborne system, in addition, the problems that the particle size of the pigment particles is great, and the phenomena such as pigment precipitation and flocculation are generated in the use process can be avoided,and the pigment preparations can be used as coloring agents applied to various industries such as paint and ink.

Description

technical field [0001] The invention relates to a method for deep processing phthalocyanine pigments, in particular to a pigment preparation containing ultrafine phthalocyanine pigment particles and a preparation method thereof. Background technique [0002] Phthalocyanine pigments are an important organic pigment. The blue and green pigments made of phthalocyanine, especially copper phthalocyanine, are very bright in color and have high tinting power. Because phthalocyanine pigments have bright color, good tinting power, strong acid resistance, It has the advantages of excellent alkali, solvent and weather resistance, and the industrial production process is simple, so it is widely used in printing ink, coating, plastic, rubber, leather, textile, paper, electronic ink and other manufacturing industries. [0003] The primary particle size of phthalocyanine pigments is generally less than 100 nanometers. During the synthesis of phthalocyanine pigments, due to the formation of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/02
Inventor 吕仕铭伍金平杜长森梅成国周华虞群胜
Owner SUZHOU SUNMUN TECH CO LTD
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