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Black liquid dispersing dye with characteristics of high color fastness and low brightness, and preparation method thereof

A liquid disperse dye, high color fastness technology, applied in the field of textile printing and dyeing, to achieve the effect of less waste water treatment, improved soaping color fastness and wet rubbing fastness, and less dye floating color

Active Publication Date: 2017-09-15
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the deficiencies of existing black disperse dyes, to provide a black liquid disperse dye with high dye utilization rate, high color depth, low waste water discharge, high color fastness and low lightness and its preparation method

Method used

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  • Black liquid dispersing dye with characteristics of high color fastness and low brightness, and preparation method thereof
  • Black liquid dispersing dye with characteristics of high color fastness and low brightness, and preparation method thereof
  • Black liquid dispersing dye with characteristics of high color fastness and low brightness, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] 1) Add 8.0g of acrylic acid, 4.0g of acrylonitrile, 2.0g of ethyl acrylate, 16.0g of vinylpyridine, an appropriate amount of emulsifier (1.0g of fatty alcohol (C12-18) polyoxyethylene ether (15) sodium sulfonate, 0.5g Emulsifier SP-80) mixed with 68.5g of water, and fully stirred into emulsion A;

[0053] 2) Take 1 / 3 of the mass of emulsion A, add 0.9g of ammonium persulfate, slowly raise the temperature to 80°C, react at this temperature for 10 minutes, then slowly add the remaining 2 / 3 of emulsion A within 60 minutes, drop After the addition is completed, react at a constant temperature of 85°C for 1 hour to obtain prepolymer A;

[0054] 3) Add an appropriate amount of hydrogen peroxide and ferrous sulfate to the above prepolymer at a constant temperature of 85°C, and continue the reaction for 2 hours to obtain polyacrylic acid copolymer A.

Embodiment 2

[0056] 1) Mix 6.0g of acrylic acid, 5.0g of acrylonitrile, 3.0g of ethyl acrylate, 19.0g of vinylpyridine, an appropriate amount of emulsifier (1.0g of sodium dodecylsulfonate, 0.5g of emulsifier SP-80) and 65.5 g of water Mix and stir well into Emulsion B;

[0057] 2) Take 1 / 3 of the mass of emulsion A, add 1.0g of ammonium persulfate, slowly raise the temperature to 80°C, react at this temperature for 1 min, then slowly add the remaining 2 / 3 of emulsion A within 60 min, drop After the addition is completed, react at a constant temperature of 85°C for 1 hour to obtain prepolymer B;

[0058] 3) Add an appropriate amount of hydrogen peroxide and ferrous sulfate to the above prepolymer at a constant temperature of 85°C, and continue the reaction for 2 hours to obtain polyacrylic acid copolymer B.

Embodiment 3

[0060] With the red dye of 0.77g structural formula A1, the orange dye of 11.46g structural formula A2, the blue dye of 6.18g structural formula A3, the blue dye of 6.65g structural formula A4, the formaldehyde condensate of 2.0g sodium methyl naphthalenesulfonate, 0.5g Aliphatic amine polyoxyethylene ether (EO=15), 5.0g of polyacrylic acid copolymer A, 0.5g of amino silicone oil, 0.02g of benzisothiazolinone and 66.92g of water were mixed and ground on a zirconia sand mill for 2.5 hours, Prepared liquid disperse dye AA-1.

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Abstract

The invention discloses a black liquid dispersing dye with characteristics of high color fastness and low brightness, and a preparation method thereof, wherein the raw dye of a black dye compound, an anionic surfactant, a nonionic surfactant, a polyacrylate copolymer, amino silicone oil, benzisothiazolinone and water are mixed, and the obtained mixture is grinded to prepare the black liquid dispersing dye. According to the present invention, the prepared black liquid dispersing dye can improve the dyeing depth of the printed fabric, reduce the loose color of the dye, improve the color fastness of the dyed product, save the effective use amount of the dye when the dyeing product having the same brightness is achieved, significantly reduce the reduction washing and water washing tasks after the printing, save the water resource and the energy consumption, and reduce the wastewater treatment cost.

Description

technical field [0001] The invention relates to the technical field of textile printing and dyeing, in particular to a black liquid disperse dye with high color fastness and low lightness and a preparation method thereof, which is used for improving the color yield of the black disperse dye and reducing the discharge of printing and dyeing wastewater. Background technique [0002] Polyester fiber is the synthetic fiber with the largest output, and disperse dyes are mostly used in the dyeing and printing of its textiles, among which blue-black disperse dyes are used in the largest amount. [0003] Blue-black disperse dyes are mostly mixtures based on the dye components of the three primary colors, mainly related to improving the utilization rate of dyes, improving the color fastness of dyed fabrics, and expanding the adaptability of dye applications. However, in the preparation process of the existing disclosed dyes, the mixture of dye components based on the three primary co...

Claims

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Application Information

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IPC IPC(8): C09B67/22C09B67/40D06P1/18D06P1/52D06P1/607
CPCC09B67/0051C09B67/0082D06P1/18D06P1/5257D06P1/5292D06P1/6076D06P3/54
Inventor 孙茜艾丽朱亚伟
Owner SUZHOU UNIV
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