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Solvent pigment 5B green and preparation method thereof

A pigment and solvent technology, applied in the field of solvent pigment 5B green and its preparation, can solve the problems of poor heat resistance and achieve stable properties and high purity

Inactive Publication Date: 2020-01-21
湖北彩德新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of solvent pigment 5B green and preparation method thereof, aim to solve the technical problem of poor heat resistance of solvent pigment 5B green in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The solvent pigment 5B green in the present embodiment comprises the following raw materials: 35 parts by weight of 1,4-dihydroxyanthraquinone; 24 parts by weight of p-toluidine; 1 part by weight of boric acid; 1 part by weight of hydrochloric acid; 110 parts by weight butanol; 190 parts by weight of methanol solution; 90 parts by weight of the first washing liquid and 70 parts by weight of the second washing liquid.

[0033] Wherein, the mass fraction of the hydrochloric acid is 27%. The mass fraction of said butanol is 27%. The mass fraction of the methanol solution is 30. Both the first washing liquid and the second washing liquid are hot water at a temperature of 75°C.

[0034] The preparation method of this solvent pigment 5B green, the steps are as follows:

[0035] 1) First add 1100kg of butanol, 350kg of 1,4-dihydroxyanthraquinone and 240kg of p-toluidine into the reactor, then add 10kg of hydrochloric acid and 10kg of boric acid into the reactor, and heat to...

Embodiment 2

[0042] The solvent pigment 5B green in the present embodiment comprises the following raw materials: 40 parts by weight of 1,4-dihydroxyanthraquinone; 28 parts by weight of p-toluidine; 2 parts by weight of boric acid; 2 parts by weight of hydrochloric acid; 120 parts by weight butanol; 200 parts by weight of methanol solution; 97 parts by weight of the first washing liquid and 81 parts by weight of the second washing liquid.

[0043] Wherein, the mass fraction of the hydrochloric acid is 31%. The mass fraction of said butanol is 31%. The mass fraction of the methanol solution is 36%. Both the first washing liquid and the second washing liquid are hot water at a temperature of 80°C.

[0044] The preparation method of this solvent pigment 5B green, the steps are as follows:

[0045] 1) First add 1200kg of butanol, 400kg of 1,4-dihydroxyanthraquinone and 280kg of p-toluidine into the reactor, then add 20kg of hydrochloric acid and 20kg of boric acid into the reactor, and heat...

Embodiment 3

[0052] The solvent pigment 5B green in the present embodiment comprises the following raw materials: 48 parts by weight of 1,4-dihydroxyanthraquinone; 32 parts by weight of p-toluidine; 3 parts by weight of boric acid; 3 parts by weight of hydrochloric acid; 128 parts by weight butanol; 210 parts by weight of methanol solution; 105 parts by weight of the first washing solution and 92 parts by weight of the second washing solution.

[0053] Wherein, the mass fraction of the hydrochloric acid is 35%. The mass fraction of said butanol is 35%. The mass fraction of the methanol solution is 42%. Both the first washing liquid and the second washing liquid are hot water at a temperature of 85°C.

[0054] The preparation method of this solvent pigment 5B green, the steps are as follows:

[0055] 1) First add 1280kg of butanol, 480kg of 1,4-dihydroxyanthraquinone and 320kg of p-toluidine into the reactor, then add 30kg of hydrochloric acid and 30kg of boric acid into the reactor, hea...

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PUM

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Abstract

The invention belongs to the technical field of solvent pigment 5B green, and particularly relates to solvent pigment 5B green and a preparation method thereof. The solvent pigment 5B green is prepared from the following raw materials in parts by weight: 35 to 48 parts of 1,4-dihydroxy anthraquinone; 24 to 32 parts of p-toluidine; 1-3 parts of boric acid; and 1-3 parts of hydrochloric acid, wherein the mass fraction of the hydrochloric acid is 27%-35%. The preparation method of the solvent pigment 5B green comprises the following steps: firstly, carrying out a condensation reaction on the 1,4-dihydroxy anthraquinone and the p-toluidine to prepare the solvent pigment 5B green, and carrying out primary filter pressing, refining, secondary filter pressing and drying on the solvent pigment 5Bgreen to prepare the solvent pigment 5B green. The solvent pigment 5B green has the advantages of good heat resistance, good light-resistant stability, good migration resistance and good coloring performance; tests show that the heat resistance of the solvent pigment 5B green in PS reaches 310 DEG C, the light fastness of the solvent pigment 5B green in PS can reach the 7-8 level, the migration resistance reaches the 4-5 level, and the tinting strength is larger than or equal to 99.8%.

Description

technical field [0001] The invention belongs to the technical field of solvent pigment 5B green, and in particular relates to a solvent pigment 5B green and a preparation method thereof. Background technique [0002] Solvent pigment 5B green is a blue-black powder, insoluble in water, soluble in organic solvents, and will produce a blue-green precipitate after being diluted with water. It is used for coloring various resins, and is also used for coloring polyester fiber raw pulp, as well as petroleum products, coatings, etc. coloring. [0003] The solvent pigment 5B green on the market has poor heat resistance, which limits its application. Contents of the invention [0004] The object of the present invention is to provide a solvent pigment 5B green and a preparation method thereof, aiming at solving the technical problem of poor heat resistance of the solvent pigment 5B green in the prior art. [0005] In order to achieve the above purpose, a solvent pigment 5B green p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B1/32
CPCC09B1/325
Inventor 季德虎罗子木赵晓彬
Owner 湖北彩德新材料科技有限公司
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