Preparing method of novel acidic dye-fixing agent for seamless underwear and prepared dye-fixing agent

An acidic color-fixing agent and seamless underwear technology, applied in dyeing, textiles and papermaking, etc., can solve the problems of reduced stretchability, non-conformity, rough hand feeling, etc., easy to control process conditions, strong alkali and high temperature resistance , Excellent color fixing effect

Active Publication Date: 2017-03-29
江西德盛精细化学品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally used reactive dye fixing agents basically contain formaldehyde, but aldehyde-containing color fixing agents are likely to cause discoloration of the dyed matter, rough handle, and reduce its elasticity (that is, poor elasticity of underwear), etc., especially the high content of formaldehyde , affecting the health and comfort of human body wearing, it does not meet the international textile requirements

Method used

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  • Preparing method of novel acidic dye-fixing agent for seamless underwear and prepared dye-fixing agent

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Embodiment 1

[0019] In the embodiment of the present invention, a method for preparing a novel acidic color-fixing agent for seamless underwear consists of the following steps:

[0020] 1) Mix alkanolamide with 30% ethanol whose mass is 5.2 times to prepare an alkanolamide solution; mix citric acid with deionized water to prepare a citric acid solution with a mass concentration of 42%; Vinyl ether was mixed with deionized water to prepare a solution of isomerized decanol polyoxyethylene ether with a mass concentration of 18%.

[0021] 2) Mix bisphenol S, dibutyltin oxide and alkanolamide solution, raise the temperature to 118°C, and stir at this temperature for 18min, then add hexamethyldisilazane, drop to 78°C and The temperature was stirred for 35 minutes, wherein the mass ratio of bisphenol S, dibutyltin oxide and hexamethyldisilazane was 28:1:5, and the volume ratio of hexamethyldisilazane and alkanolamide solution 1:6; then add citric acid solution, stir at 62°C for 53 minutes, where...

Embodiment 2

[0023] In the embodiment of the present invention, a method for preparing a novel acidic color-fixing agent for seamless underwear consists of the following steps:

[0024] 1) Mix alkanolamide with 30% ethanol whose mass is 5.2 times to prepare an alkanolamide solution; mix citric acid with deionized water to prepare a citric acid solution with a mass concentration of 42%; Vinyl ether was mixed with deionized water to prepare a solution of isomerized decanol polyoxyethylene ether with a mass concentration of 18%.

[0025] 2) Mix bisphenol S, dibutyltin oxide and alkanolamide solution, raise the temperature to 118°C, and stir at this temperature for 18min, then add hexamethyldisilazane, drop to 78°C and The temperature was stirred for 35 minutes, wherein the mass ratio of bisphenol S, dibutyltin oxide and hexamethyldisilazane was 36:5:13, and the volume ratio of hexamethyldisilazane and alkanolamide solution 1:8; then add citric acid solution, stir at 62°C for 53 minutes, wher...

Embodiment 3

[0027] In the embodiment of the present invention, a method for preparing a novel acidic color-fixing agent for seamless underwear consists of the following steps:

[0028] 1) Mix alkanolamide with 30% ethanol whose mass is 5.2 times to prepare an alkanolamide solution; mix citric acid with deionized water to prepare a citric acid solution with a mass concentration of 42%; Vinyl ether was mixed with deionized water to prepare a solution of isomerized decanol polyoxyethylene ether with a mass concentration of 18%.

[0029] 2) Mix bisphenol S, dibutyltin oxide and alkanolamide solution, raise the temperature to 118°C, and stir at this temperature for 18min, then add hexamethyldisilazane, drop to 78°C and The temperature was stirred for 35 minutes, wherein the mass ratio of bisphenol S, dibutyltin oxide and hexamethyldisilazane was 30:2:7, and the volume ratio of hexamethyldisilazane and alkanolamide solution 1:7; then add citric acid solution, stir at 62°C for 53 minutes, where...

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Abstract

The invention discloses a preparing method of a novel acidic dye-fixing agent for seamless underwear and the prepared dye-fixing agent. The preparing method comprises the steps of mixing bisphenol S, dibutyltin oxide and an alkanolamide solution, conducting heating and stirring processing on the mixture, then adding hexamethyldisilazane into the mixture, and conducting cooling and stirring processing on the mixture, wherein the mass ratio of bisphenol S to dibutylin oxide to hexamethyldisilazane is (28-36):(1-5):(5-13) and the volume ratio of hexamethyldisilazane to the alkanolamide solution is 1:(6-8); adding a citric acid solution into the mixture, and stirring the mixture at the temperature of 62 DEG C, wherein the volume ratio of hexamethyldisilazane to the citric acid solution is 1:(15-17); dropwise adding an isomeric alcohol ethoxylate solution into the mixture, conducting stirring processing on the mixture at the temperature of 55 DEG C, and lowering the temperature to a normal temperature so as to obtain the novel acidic dye-fixing agent. According to the preparing method of the novel acidic dye-fixing agent for seamless underwear and the prepared dye-fixing agent, the dye-fixing agent is free of formaldehyde, excellent in color fixation effect, and very strong in alkali resistance and high temperature resistance; the dye-fixing agent has no influence on bright hues of reactive dyes; the dye-fixing agent is free of color change, has no influence on chlorine fastness, light fastness and perspiration fastness of dye materials, is green and environmentally friendly, and is suitable for industrialized production.

Description

technical field [0001] The invention relates to the technical field of dye auxiliaries, in particular to a method for preparing a novel acidic color-fixing agent for seamless underwear and the prepared color-fixing agent. Background technique [0002] With the improvement of living standards and the requirements of work, social interaction and etiquette, people pay more and more attention to the appearance of external image and body shape. The seamless underwear fabric came into being due to the trend of the times, and the seamless underwear adopts novel special equipment to produce one-shot underwear. Seamless underwear uses high-tech technology for producing high-elastic knitted outerwear, underwear and high-elastic sportswear, so that the neck, waist, hips and other parts do not need seams. Seamless underwear completely integrates comfort, fashion and change. There are more and more requirements for its color. Since seamless underwear is a close-fitting object, its dye...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/613D06P1/642D06P1/649D06P1/651D06P1/653
CPCD06P1/6133D06P1/642D06P1/6495D06P1/65106D06P1/65193D06P1/6533
Inventor 刘海平刘汉茂吕学海
Owner 江西德盛精细化学品有限公司
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