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Preparation method of special phthalocyamine blue 15:4 pigment for methylbenzene ink

A technology of phthalocyanine blue and toluene, which is applied in the field of preparation of phthalocyanine blue 15:4 pigment specially used for toluene ink, can solve the problems of serious COD emission, large power consumption, and large raw material consumption, so as to reduce production cost and improve solvent resistance performance, excellent color effect

Active Publication Date: 2013-06-12
SHUANGLE CHEM PIGMENT YANGZHOU CITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] It can be seen from the brief description of the above method that the traditional phthalocyanine blue 15:4 production process has a long process and consumes a large amount of raw materials (see the table above: vertical ball milling requires a large amount of anhydrous calcium chloride, xylene and sulfuric acid; Kneading also requires a large amount of sodium chloride, solvent and hydrochloric acid), the power consumption is also quite large, and a large amount of pollutants that have an important impact on the environment are produced, and the COD emission is quite serious, which forms a certain conflict with the national environmental protection policy

Method used

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  • Preparation method of special phthalocyamine blue 15:4 pigment for methylbenzene ink
  • Preparation method of special phthalocyamine blue 15:4 pigment for methylbenzene ink
  • Preparation method of special phthalocyamine blue 15:4 pigment for methylbenzene ink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Add 1000kg of crude copper phthalocyanine with purity ≥ 98.5% and free copper content ≤ 1000ppm to a 10000L horizontal ball mill, and add 30kg of copper phthalocyanine derivative shown in formula (II), turn on the ball mill for ball milling, and adjust Cooling water controls the temperature of the material in the machine at 140±2°C, and ball mills for 12 hours to obtain a ball milled product containing 30% of the α crystal form. The ball-milled product is passed through a magnetic filter to remove iron produced during ball-milling, and the product is collected to obtain an intermediate product of phthalocyanine blue 15:4, and the average particle size of the pigment is less than 1 μm. Then mix the intermediate product of phthalocyanine blue 15:4 with toluene ink, knead with a kneader and grind with a three-roller machine to obtain a special phthalocyanine blue 15:4 pigment for toluene ink.

Embodiment 2

[0051] Add 1000kg of crude copper phthalocyanine with purity ≥ 98.5% and free copper content ≤ 1000ppm to a 10000L horizontal ball mill, and add 30kg of copper phthalocyanine derivative shown in formula (II), turn on the ball mill for ball milling, and adjust Cooling water controls the temperature of the material in the machine at 145±2°C, and ball mills for 12 hours to obtain a ball milled product containing 33% of the α crystal form. The ball-milled product is passed through a magnetic filter to remove iron produced during ball-milling, and the product is collected to obtain an intermediate product of phthalocyanine blue 15:4, and the average particle size of the pigment is less than 1 μm. Then mix the intermediate product of phthalocyanine blue 15:4 with toluene ink, knead with a kneader and grind with a three-roller machine to obtain a special phthalocyanine blue 15:4 pigment for toluene ink.

Embodiment 3

[0053] Add 1000kg of crude copper phthalocyanine with purity ≥ 98.5% and free copper content ≤ 1000ppm to a 10000L horizontal ball mill, and add 30kg of copper phthalocyanine derivative shown in formula (II), turn on the ball mill for ball milling, and adjust Cooling water controls the temperature of the material in the machine at 130±2°C, and ball mills for 16 hours to obtain a ball milled product containing 35% of the α crystal form. The ball-milled product is passed through a magnetic filter to remove iron produced during ball-milling, and the product is collected to obtain an intermediate product of phthalocyanine blue 15:4, and the average particle size of the pigment is less than 1 μm. Then mix the intermediate product of phthalocyanine blue 15:4 with toluene ink, knead with a kneader and grind with a three-roller machine to obtain a special phthalocyanine blue 15:4 pigment for toluene ink.

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Abstract

The invention discloses a preparation method of special phthalocyanine blue 15:4 pigment for methylbenzene ink. The preparation method comprises the steps of: mixing the crude copper phthalocyanine and copper phthalocyanine derivatives according to certain proportion, and performing ball-grinding and deironing to be directly used for methylbenzene ink. The preparation method is short in production flow process, the crystal form transformation can be realized through the physical action of a ball grinder, the preactivated phthalocyanine blue prepared can be directly applied to the methylbenzene ink without the following pigmentation process, high-content nonpolar solvent methylbenzene in the methylbenzene ink can be promoted, even and fine pigment particles can be obtained in cooperation with physical ball grinding, the special phthalocyanine blue 15:4 pigment for methylbenzene ink is anti-crystallized and anti-flocculated, and the storage stability of the ink can be enhanced.

Description

technical field [0001] The invention belongs to the technical field of preparation of phthalocyanine blue pigments, in particular to a preparation method of phthalocyanine blue 15:4 pigment specially used for toluene ink. Background technique [0002] Phthalocyanine blue is a functional pigment, mainly including several series of P.B15, P.B15:1, P.B15:3, P.B15:4, P.B15:6 and aluminum phthalocyanine, with pure , bright strong red hue, anti-crystallization, anti-flocculation, heat-resistant and stable properties, mainly used in coatings, plastics, inks, textile masterbatches, printing pastes and other industries. The pigment is an allomorphic compound, based on the difference in lattice structure, it has a variety of crystal forms, such as α-crystal form (phthalocyanine blue 15, 15:1, 15:2), β-crystal form (phthalocyanine blue 15:3, 15:4); γ crystal form; ε crystal form (phthalocyanine blue 15:6); δ crystal form five crystal forms of phthalocyanine blue. They each exhibit di...

Claims

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Application Information

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IPC IPC(8): C09D11/02C09B67/50C09B67/04C09D11/037
Inventor 毛顺明朱建军刘小军陈军
Owner SHUANGLE CHEM PIGMENT YANGZHOU CITY
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