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Method for modifying and dyeing polyester fiber by use of silver-doped nano titanium dioxide disperse dye

A nano-titanium dioxide and polyester fiber technology, which is applied in fiber treatment, textiles and papermaking, etc., can solve the problems of polyester fiber's poor hand feeling and air permeability, low photocatalytic activity of polyester fiber, and unsustainable washing resistance, etc., and shorten the production process process, high photocatalytic activity and antimicrobial properties, and low production cost

Active Publication Date: 2015-04-01
XI'AN POLYTECHNIC UNIVERSITY
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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 provide a method for modifying and dyeing polyester fibers with silver-doped nano-titanium dioxide disperse dyes, which solves the problem that the polyester fibers obtained by existing modification methods have low photocatalytic activity under visible light, poor self-cleaning function, and unsustainable washing resistance. , the problem of poor hand feeling and air permeability of modified polyester fibers or fabrics

Method used

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  • Method for modifying and dyeing polyester fiber by use of silver-doped nano titanium dioxide disperse dye
  • Method for modifying and dyeing polyester fiber by use of silver-doped nano titanium dioxide disperse dye
  • Method for modifying and dyeing polyester fiber by use of silver-doped nano titanium dioxide disperse dye

Examples

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Effect test

Embodiment 1

[0063]Prepare a sodium hydroxide solution with a mass concentration of 80g / L, weigh 10g of polyester fiber, soak the polyester fiber in 500mL of sodium hydroxide solution at a bath ratio of 1:50, and treat it at 80°C for 30 minutes. The finished polyester fibers were cleaned with absolute ethanol and deionized water respectively, and dried at 80°C for 20 minutes to dry the pretreated polyester fibers; according to the mass ratio of the etched polyester fibers to tetrabutyl titanate 1 : 1, weigh 10g of tetrabutyl titanate, weigh 1g of silver nitrate according to the mass ratio of the etched polyester fiber to silver nitrate 1:0.1, weigh 0.3% of the mass of the etched polyester fiber, weigh Take 0.03g of disperse blue SE-2R dye, measure the ethanol solution with a mass concentration of 95% according to the volume ratio of the weighed tetrabutyl titanate and the ethanol solution as 1:3, and use the titanate prepared in the previous step The volume ratio of tetrabutyl ester soluti...

Embodiment 2

[0066] Prepare a sodium hydroxide solution with a mass concentration of 120g / L, weigh 10g of polyester fiber, soak the polyester fiber in 800mL of sodium hydroxide solution at a bath ratio of 1:80, and treat it at 100°C for 50 minutes. The finished polyester fibers were washed with absolute ethanol and deionized water respectively, and dried at 100°C for 40 minutes to dry the pretreated polyester fibers; according to the mass ratio of the etched polyester fibers to tetrabutyl titanate 1 : 3, weigh 30g of tetrabutyl titanate, weigh 5g of silver nitrate according to the mass ratio of polyester fiber after etching to silver nitrate 1:0.5, and weigh 2% of the mass of polyester fiber after etching. Take 0.2g of disperse blue BBLS dye, measure the ethanol solution with a mass concentration of 95% according to the volume ratio of the weighed tetrabutyl titanate and ethanol solution as 1:10, and measure the ethanol solution with a mass concentration of 95% according to the tetrabutyl t...

Embodiment 3

[0069] Prepare a sodium hydroxide solution with a mass concentration of 100g / L, weigh 10g of polyester fiber, soak the polyester fiber in 600mL of sodium hydroxide solution at a bath ratio of 1:60, and treat it at 90°C for 40 minutes. The finished polyester fibers were cleaned with absolute ethanol and deionized water respectively, and dried at 90°C for 30 minutes to dry the pretreated polyester fibers; according to the mass ratio of the etched polyester fibers to tetrabutyl titanate 1 : 2, weigh 20g of tetrabutyl titanate, weigh 2g of silver nitrate according to the mass ratio of the etched polyester fiber to silver nitrate 1:0.2, and weigh 1% of the mass of the etched polyester fiber. Take 0.1g of disperse turquoise blue S-GL dye, measure the ethanol solution with a mass concentration of 95% according to the volume ratio of the weighed tetrabutyl titanate and ethanol solution as 1:6, and measure the ethanol solution according to the titanium prepared in the previous step The...

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Abstract

The invention discloses a method for modifying and dyeing polyester fiber by use of silver-doped nano titanium dioxide disperse dye. The method comprises the following steps of: soaking the polyester fiber in a sodium hydroxide solution for etching; cleaning and drying the etched polyester fiber; preparing a modification and dyeing mixed solution; performing modification and dyeing composition finishing on the polyester fiber after the etching treatment in the first step by use of the modification and dyeing solution; and finally, cleaning and drying the modified polyester fiber. The method disclosed by the invention solves the problems that the polyester fiber prepared by an existing modification method has low photocatalytic activity under visible light, a poor self-cleaning function and non-lasting washing resistance and that the modified polyester fiber or fabric has poor handfeel and air permeability.

Description

technical field [0001] The invention belongs to the technical field of functional textile materials, and relates to a method for modifying and dyeing composite finishing of polyester fibers, in particular to a method for modifying and dyeing polyester fibers with silver-doped nano-titanium dioxide disperse dyes. Background technique [0002] As a wide bandgap inorganic semiconductor material, titanium dioxide has stable chemical properties, non-toxicity, low price, strong ability to shield ultraviolet rays, and high photocatalytic activity. Wide range of applications. In recent years, titanium dioxide has been widely used in the modification of textile materials to obtain antibacterial, UV protection and self-cleaning functions due to its good photocatalytic activity. However, due to the large band gap of titanium dioxide (3.0-3.2eV), its absorption spectrum is in the near-ultraviolet region (λ<387nm), and in the sunlight reaching the ground, the near-ultraviolet spectru...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M11/83D06M11/46D06M11/38D06P3/54D06M101/32
Inventor 张辉李芳毛宁涛
Owner XI'AN POLYTECHNIC UNIVERSITY
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