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Method for improving light-perspiration color fastness of reactive brilliant red dyed fabric

A reactive bright red, color fastness technology, used in plant fibers, textiles and papermaking, fiber processing and other directions, can solve the problems of low fastness to ultraviolet absorbers, affecting the feel and appearance of textiles, and poor fastness to sunlight. , to permanently improve light fastness, good light fastness to perspiration and sunlight, and easy operation.

Inactive Publication Date: 2013-05-08
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Most of the traditional UV absorbers are fixed on textile fibers by means of physical adsorption, bonding, crosslinking, doping, etc., which makes the fastness of UV absorbers on textiles not high, poor wear resistance, and Also affects the feel and appearance of the textile
[0006] In order to overcome the problem of poor light fastness of reactive dye dyed fabrics, the present invention provides a method for improving the perspiration and light fastness of reactive dye dyed fabrics

Method used

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  • Method for improving light-perspiration color fastness of reactive brilliant red dyed fabric
  • Method for improving light-perspiration color fastness of reactive brilliant red dyed fabric
  • Method for improving light-perspiration color fastness of reactive brilliant red dyed fabric

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Example 1: Dyeing of Cotton Fabrics and Measurement of Color Fastness to Light and Perspiration

[0031] (1) Dyeing: cotton fabric is put into the aqueous solution containing 1% (owf), 2% (owf), 3% (owf) of reactive brilliant red 3BSN respectively, bath ratio 1: 20, after being heated up to 40 ℃, Add 20g / L Yuanming powder and 5g / L sodium carbonate, react for 30min, then raise the temperature to 80°C, then add 5g / L Na 2 CO 3 , continue to react for 60 minutes, take out the fabric, wash it with water, and dry it.

[0032] (2) The above-mentioned cotton fabric dyed with reactive brilliant red 3BSN was treated in acidic sweat solution for 30 minutes to evenly soak into the solution, and then the fabric was irradiated with German ATLAS-150S light fastness meter for 100 hours. Use the Macbeth Color-eye 7000A color measuring instrument to evaluate the degree of fading of the fabric as 2-4 grades (1% owf), 3-4 grades (2% owf) and 4 grades (3% owf); use the gray scale to evalu...

Embodiment 2

[0034] Example 2: Determination of Dyeing and Light / Sweat Color Fastness of Cotton Fabrics after UV Absorber Finishing

[0035] (1) Soak the cotton fabric at 40°C in a pH=9 sodium carbonate solution with a bath ratio of 1:30 for 30 minutes, then soak it twice and roll it twice (the excess rate is 90%), dry it at 50°C, and dry it at 60°C Cotton fabric is soaked in the N,N-dimethylformamide finishing solution that is that the bath ratio is 1:30 containing 2% (owf) ultraviolet absorber UV-DTHM to the fabric again after 30min, two dipping two rolling (rolling) The remaining rate is 85%), steamed at 100°C for 60min. The cotton fabric after finishing is put into respectively in the aqueous solution containing the reactive brilliant red 3BSN of 1% (owf), 2% (owf), 3% (owf), after warming up to 40 ℃, add 20g / L Yuanming powder and 5g / L sodium carbonate, react for 30min, then raise the temperature to 80°C, add 5g / L Na 2 CO 3 , continue to react for 60 minutes, take out the fabric, w...

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Abstract

The invention discloses a method for improving light-perspiration color fastness of reactive brilliant red dyed fabric, and belongs to the technical field of fabric after-finishing. The method comprises the following steps of: arranging synthetic reactive ultraviolet absorbent 4-(4,6-dichloro-1,3,5-triazine-2-oxo)-2-hydroxybenzoic benzophenone (UV-DTHM) on a cotton fabric; then dyeing reactive brilliant red 3BSN on the cotton fabric after finishing with the reactive dye dyeing method; and irradiating the fabric for 100h by using German ATLAS-150S light fastness tester after the dyed fabric is respectively treated in acid perspiration and alkaline perspiration. The light-perspiration color fastness of the dyed fabric after being arranged by the ultraviolet absorbent is superior to that of fabric to which ultraviolet absorbent is not added.

Description

technical field [0001] The invention relates to an agent for improving the light fastness to perspiration, in particular to a method capable of improving the light fastness to perspiration of reactive brilliant red dyed fabrics. Background technique [0002] In the hot summer, outdoor clothing is particularly prone to fading and discoloration after exposure to human sweat, because most dyes are unstable to light due to the inherent instability of their chromophores under sunlight. It is highly prone to photooxidative reaction, leading to fading of dyed fabrics. In the presence of acid or alkaline perspiration, there will also be a reduction effect, which greatly accelerates the light fading of the dye. Therefore, light fastness to perspiration has become an important index for assessing the quality of textiles. [0003] There are several ways to improve the light fastness of fabrics: the design and synthesis of dyes with high light fastness, the selection of appropriate dy...

Claims

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Application Information

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IPC IPC(8): D06M13/372D06P3/66D06M101/06
Inventor 黄丹沈云刘臻
Owner JIANGNAN UNIV
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