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A kind of reactive black dye composition suitable for polyamide fiber dyeing

A technology of black dyes and compositions, applied in dyeing methods, organic dyes, textiles and papermaking, etc., can solve the problems of poor wet fastness, heavy metal content, good levelness, etc., and achieve excellent fastness performance and little chemical damage. , the effect of high blackness

Active Publication Date: 2017-12-15
TIANJIN DEK CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using the dye composition to dye polyamide fibers according to the preferred dyeing process, the dyeing rate is high and the level dyeing property is good, and the dyed materials are post-treated with liquid ammonia or sodium bicarbonate, and the fastness properties are excellent; and the The dyes meet the requirements of environmental protection, and overcome the problems of poor wet fastness after dyeing polyamide materials by traditional acid dyes, metal complex dyes and mordant dyes or heavy metals in the dye structure or heavy metals added in the dyeing process.

Method used

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  • A kind of reactive black dye composition suitable for polyamide fiber dyeing
  • A kind of reactive black dye composition suitable for polyamide fiber dyeing
  • A kind of reactive black dye composition suitable for polyamide fiber dyeing

Examples

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Embodiment 1

[0020] A method for preparing a reactive black dye composition, comprising the following steps: 67.2g of Brilliant Fast Orange 4R, 252.4kg of Delongsu Navy Blue N-R, and 12.4kg of Brilliant Fast Blue 3G 12.4kg are fully pulverized, and then 500kg of them are sequentially added and blended. In the tank, add sodium sulfate 8kg again, fully stir, take a sample inspection, pack after confirming to stir, can obtain the active black dye composition of about 340kg.

Embodiment 2

[0022] A preparation method for a reactive black dye composition, comprising the steps of: fully pulverizing three kinds of dyes, 4R50kg of Brilliant Fast Orange, 850kg of Delongsu Navy Blue N-R, and 10kg of Brilliant Fast Blue 3G, adding them to a 2000kg mixing tank in turn, and then adding sulfuric acid Sodium 10kg, fully stirred evenly, sampling inspection, pack after confirming to stir evenly, can obtain the reactive black dye composition of about 920kg.

Embodiment 3

[0024] A preparation method for a reactive black dye composition, comprising the steps of: adding 20kg of Brilliant Orange 4R20kg, Delongsu Navy N-R700kg, and Brilliant Fast Blue 3G4kg into a 2000kg mixing tank in sequence after being fully pulverized, and then adding sulfuric acid Sodium 10kg, fully stir evenly, take a sample inspection, pack after confirming to stir evenly, can obtain the reactive black dye composition of about 740kg.

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Abstract

The invention relates to a reactive black dye composition suitable for dyeing polyamide fibers. The composition comprises Delong Su navy blue N-R, Brilliant Orange 4R and Brilliant Blue 3G reactive dyes, which are prepared by reasonable mixing, wherein Delong The structural formula of plain navy blue N-R is as follows: the reactive black dye composition of the present invention can be dyed polyamide fibers in a weakly acidic dye bath, does not require the participation of heavy metals and thus has very little chemical damage to the fibers, and has a high blackness and is easy to dye. After feel and gloss will not change.

Description

technical field [0001] The invention belongs to the field of dye mixtures, in particular to a reactive black dye composition suitable for dyeing polyamide fibers (nylon). Background technique [0002] Polyamide fiber is a fiber with good strength, wear resistance and high elasticity. It is widely used in knitting, clothing fabrics, travel bags, carpets, swimming suits, etc., especially in my country. It has formed a large scale of production. It is currently the third largest synthetic fiber in synthetic fibers. There are many varieties of nylon at present, and the most widely used varieties are nylon 6 and nylon 66. [0003] In the dyeing of polyamide fibers and related products, black is the main color, and acid dyes, metal complex dyes or mordant dyes are generally used for dyeing. [0004] Although acid dyes have a complete black color spectrum and simple dyeing process, the blackness and wet fastness of dyeing are very poor because acid dye molecules and polyamide mate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B67/22C09B67/24D06P3/24
Inventor 张兴华周顺茹
Owner TIANJIN DEK CHEM