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Method for modifying and dying polyamide (PA) fabric by use of titanium sulfate and urea as well as reactive dye

A technology of titanium sulfate and nylon, which is applied in the modification and dyeing of nylon fabrics, and in the field of nylon fabric modification and dyeing. It can solve the problem that nano-titanium dioxide loading and dyeing cannot be realized simultaneously, and nylon fabrics have low anti-ultraviolet and antibacterial properties, fabric feel and breathability. Poor performance and other problems, to achieve the effect of excellent color fastness to sunlight, saving raw materials, and high dyeing percentage

Inactive Publication Date: 2014-01-08
HOSA IND FUJIAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for modifying and dyeing nylon fabrics by using titanium sulfate, urea and reactive dyes, which solves the problem that the nylon fabrics obtained by existing modification methods have low anti-ultraviolet and antibacterial properties, and are not durable in washing resistance. Nano-titanium dioxide loading and dyeing cannot be realized simultaneously, the dyed fabric has poor level dyeing property, fabric hand feeling and air permeability are poor

Method used

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  • Method for modifying and dying polyamide (PA) fabric by use of titanium sulfate and urea as well as reactive dye
  • Method for modifying and dying polyamide (PA) fabric by use of titanium sulfate and urea as well as reactive dye
  • Method for modifying and dying polyamide (PA) fabric by use of titanium sulfate and urea as well as reactive dye

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Weigh 5g of nylon fabric and 15g of titanium sulfate, weigh urea according to the molar ratio of titanium sulfate to urea of ​​0.1:1, and weigh reactive brilliant blue KN-R dye according to 0.3% of the mass of nylon fabric. Nylon fabrics were washed with a mixed solution of deionized water and absolute ethanol with a volume ratio of 1:1 at a temperature of 80 ° C for 30 min under ultrasonic vibration at 50 KHz and a power of 100 W, and dried at 60 ° C. Dissolve the weighed titanium sulfate, urea and dye in 50ml deionized water, then immerse the nylon fabric in the mixed solution of titanium sulfate, urea and dye for 10min, then add the titanium sulfate, urea and dye solution impregnated with nylon fabric into a high-temperature and high-pressure reactor, and filled with deionized water to 60% of the volume of the reactor, and the sealed reactor was subjected to constant temperature treatment at 120°C for 3 hours. After the reaction, take out the nylon fabric, use 2g / L s...

Embodiment 2

[0031] Weigh 5g of nylon fabric and 30g of titanium sulfate, weigh urea according to the molar ratio of titanium sulfate to urea of ​​0.5:1, and weigh reactive brilliant blue KN-R dye according to 2% of the mass of nylon fabric. Nylon fabrics were washed with a mixed solution of deionized water and absolute ethanol with a volume ratio of 1:1 at a temperature of 80 ° C for 30 min under ultrasonic vibration at 50 KHz and a power of 100 W, and dried at 60 ° C. Dissolve the weighed titanium sulfate, urea and dye in 50ml deionized water, then immerse the nylon fabric in the mixed solution of titanium sulfate, urea and dye for 30min, then add the titanium sulfate, urea and dye solution impregnated with nylon fabric into a high-temperature and high-pressure reactor, and filled with deionized water to 80% of the volume of the reactor, and the sealed reactor was treated at a constant temperature of 160°C for 1 hour. After the reaction, take out the nylon fabric, use 2g / L soap flakes, 2...

Embodiment 3

[0034] Weigh 5g of nylon fabric and 20g of titanium sulfate, weigh urea according to the molar ratio of titanium sulfate to urea of ​​0.3:1, and weigh reactive brilliant blue KN-R dye according to 1% of the mass of nylon fabric. Nylon fabrics were washed with a mixed solution of deionized water and absolute ethanol with a volume ratio of 1:1 at a temperature of 80 ° C for 30 min under ultrasonic vibration at 50 KHz and a power of 100 W, and dried at 60 ° C. Dissolve the weighed titanium sulfate, urea and dye in 50ml deionized water, then immerse the nylon fabric in the mixed solution of titanium sulfate, urea and dye for 20min, then add the titanium sulfate, urea and dye solution impregnated with nylon fabric into a high-temperature and high-pressure reactor, and filled with deionized water to 70% of the volume of the reactor, and the sealed reactor was treated at a constant temperature of 140°C for 1.5h. After the reaction, take out the nylon fabric, use 2g / L soap flakes, 2g / ...

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Abstract

The invention discloses a method for modifying and dying polyamide (PA) fabric by use of titanium sulfate and urea as well as reactive dye in a hydrothermal manner. The method comprises the following steps: firstly, ultrasonically oscillating and washing the PA fabric repeatedly by use of de-ionized water and 95wt% absolute ethyl alcohol respectively at the temperature of 60-90 DEG C, and then drying; then treating the PA fabric by use of titanium sulfate and urea as well as the reactive dye; and finally washing the PA fabric by use of a washing liquid based on the bath ratio of 1:(30-50) at the temperature of 95 DEG C for 10-30 minutes, repeatedly washing with hot and cold water, and drying or naturally airing to obtain the modified and dyed PA fabric. By adopting the method disclosed by the invention, raw materials can be saved and good washing fastness of the PA fabric can be obtained; the method is simple and convenient in operation; and the modified and dyed PA fabric has the advantages of excellent color fastness to dry and wet rubbing, excellent color fastness to brushing, excellent color fastness to sunlight, higher dyeing percentage and uniform dyeing property as well as strong mold resistance after being washed 30 times.

Description

technical field [0001] The invention belongs to the technical field of functional textile materials, and relates to a method for modifying and dyeing nylon fabric, in particular to a method for modifying and dyeing nylon fabric by using titanium sulfate, urea and reactive dyes. Background technique [0002] The ability, photocatalytic activity and color effect make it very popular once it comes out, and it has broad application prospects in sun protection, sterilization, wastewater treatment, environmental protection and automobile industry. Fabrics with multiple functions can be prepared by utilizing the characteristics of nano-titanium dioxide such as high temperature resistance, refractory decomposition, non-toxicity, long-lasting function, and good compatibility with polymers. The preparation methods of nano titanium dioxide mainly include gas phase method, liquid phase method and solid phase method. In contrast, the liquid-phase method has the advantages of low synthes...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P3/24D06P1/38D06M11/46D06M101/34
Inventor 张辉朱虹
Owner HOSA IND FUJIAN
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