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Acidic gray dye mixture

A dye mixture, gray technology, used in organic dyes, dyeing methods, textiles and papermaking, etc., can solve the problems of easy dyeing or printing color spots, poor dyeing levelness, easy to appear color spots, etc., to improve solubility, The effect of improving dyeing performance and wide practicability

Active Publication Date: 2011-10-05
浙江大井化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Practice has proved that acid gray JS has poor wet fastness when dyed to a medium depth, only grade 1-2, severe discoloration after heat setting, low solubility in water, solubility is 20g / L (90°C), and color spots are prone to appear when dyeing or printing ; The same neutral gray 2BL dye has low solubility in water, the solubility is only 30g / L (90°C), and the dyeing levelness is also poor, and dyeing or printing color spots are prone to appear

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] 1. Preparation of dye mixture:

[0051] According to the raw material proportioning of Table 1, the metal complex dye C.I. acid black 172 of formula (I-1), the metal complex dye C.I. acid blue 193 of formula (I-2), the metal complex dye of formula (II-1) Combine dyestuff C.I. acid blue 317 and the anthraquinone type dyestuff C.I. acid green 27 of formula (III-4). Mix color, check dye shade, add 28.2% water-soluble starch and 20ml acetone, adjust the pH value to 7, adjust the dye strength to 150 and the solid content of the mixture to 93%, mix the mixture evenly, and wait for the process parameters of the spray drying tower Stable, the feed to the drying tower is dry, and the output is the finished dye. The finished dyed nylon fabric is gray in color.

[0052] Table 1

[0053]

[0054] Note: The content of dye components and water-soluble starch is the mass percentage of the dry product of each component based on the total amount of the dye mixture.

[0055] 2. Pe...

Embodiment 2

[0062] 1. Preparation of dye mixture:

[0063] According to the raw material ratio of Table 3, the metal complex dye C.I. acid black 172 of formula (I-1), the metal complex dye C.I. acid blue 193 of formula (I-2), the metal complex dye of formula (II-1) Combined dyestuff C.I. acid blue 317 and the former dyestuff filter cake conversion dry product quality of the anthraquinone type dyestuff C.I. acid green 28 containing formula (III-5) with the ratio of 40%, 25%, 7% and 8% and the water of 200g Beat the color, check the color of the dye, add 20% of water-soluble starch and sodium sulfate and 20ml of acetone, adjust the pH to 8, adjust the dye strength to 150 and the solid content of the mixture to 93%, mix the mixture evenly, wait The process parameters of the spray drying tower are stable, the feed to the drying tower is dry, and the output is finished dyes. The finished dyed nylon fabric is gray in color.

[0064] table 3

[0065]

[0066] Note: The content of dye compo...

Embodiment 3

[0075] 1. Preparation of dye mixture:

[0076] According to the raw material ratio of Table 5, the metal complex dye C.I. acid black 194 of formula (I-1), the metal complex dye C.I. acid blue 193 of formula (I-2), the metal complex dye of formula (II-1) Combined dyestuff C.I. acid blue 317 and the former dyestuff filter cake conversion dry product quality of the anthraquinone type dyestuff C.I. acid green 27 containing formula (III-4) with the ratio of 38%, 22%, 5% and 12% and the water of 200g Beat the color, check the color of the dye, add 23% of sodium sulfate, adjust the pH to 8, adjust the strength of the dye to 150 and the solid content of the mixture to 92%, mix the material evenly, wait for the process parameters of the spray drying tower to be stable, and dry The tower feed material is dried, and the output material is finished dye, and the color of the finished dye dyed nylon fabric is gray.

[0077] table 5

[0078]

[0079] Note: The content of dye components ...

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Abstract

The invention discloses an acidic gray dye mixture. The mixture comprises the following raw materials in percentage by weight: 30 to 90 percent of component A, 3 to 25 percent of component B, 5 to 20 percent of component C and the balance of auxiliary agent, wherein the component A is one or more of compounds shown as the formula (I); the component B is one or more of compounds shown as the formula (II); and the component C is one or more of compounds shown as the formula (III). When the dye mixture is used for dyeing a nylon fabric, dyed color fastness to light, fastness to hot pressing (ironing), and fastness to humidity such as fastness to staining, fastness to discoloration and the like can be obviously improved; and the dye mixture has high solubility in water.

Description

technical field [0001] The invention relates to an acid dye, in particular to an acid gray dye mixture suitable for dyeing and printing nylon fibers and fabrics. Background technique [0002] As we all know, the application performance of dyes directly affects the dyeing quality of nylon fabrics. The gray dyes often used in nylon fabrics are acid gray JS and neutral gray 2BL dyes. Practice has proved that acid gray JS has poor wet fastness when dyed to a medium depth, only grade 1-2, severe discoloration after heat setting, low solubility in water, solubility is 20g / L (90°C), and color spots are prone to appear when dyeing or printing ; The same neutral gray 2BL dye has a low solubility in water, the solubility is only 30g / L (90°C), the dyeing levelness is also poor, and dyeing or printing color points are prone to occur. Therefore, seeking a kind of acid gray dye with excellent fastness and good solubility is an urgent problem to be solved in the printing and dyeing indus...

Claims

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Application Information

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IPC IPC(8): C09B67/22C09B67/24C09B67/06D06P1/39D06P3/24
Inventor 吴显旺周忠平王晶沈兰兰
Owner 浙江大井化工有限公司
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