A method for improving light fastness of thpc flame retardant fabric

Abstract

The invention discloses a method for improving illumination fastness of a THPC flame-retardant fabric. The method comprises the following specific technological processes: turning and sewing of gray cloth; desizing, boiling-off and mercerizing; stentering; flame-retarding; oxygen low-temperature plasma treatment; dyeing; washing and drying; stentering; preshrinking; and checking and packing. The desizing, boiling-off and mercerizing process is implemented fully until pH of eluant of the grey cloth is smaller than or equal to 7, a flame-retarding process successively comprises padding of THPC flame retardant working liquid, ammonia fuming, oxidation washing and drying and stentering, the concentration of THPC flame retardant in the THPC flame retardant working liquid is higher than a normal value by 8-10%, in an ammonia fuming process, the flow velocity of ammonia is 500-700 mL / s, and ammonia fuming time is not less than 5 seconds. The wicking capability of the treated THPC flame-retardant fabric is improved by 5-6 times, surface polar groups (-OOH, -OH, and -C=O) are remarkably increased, the dyeing percentage of dyestuff is multiplied, and demands of customers to the color are met well.

Description

technical field [0001] The invention belongs to the technical field of light-resistant THPC flame-retardant fabrics, and in particular relates to a method for improving the light fastness of THPC flame-retardant fabrics. Background technique [0002] Some pure cotton fabrics with high brightness (such as bright red, orange red, fluorescent yellow) are dyed with reactive dyes. If the cotton fabric of this color needs to be THPC flame retardant, and THPC flame retardant has very strong reduction , it is easy to destroy the molecular structure of reactive dyes, resulting in bright red, orange, fluorescent yellow and other cotton flame-retardant fabrics, light fastness is only 1-2, wearing such fabrics in some strong light conditions, such as offshore drilling Platforms, oil field exploration, and Southeast Asia and other regions, it may only take a few days or ten days for the color of such clothes to fade seriously, which is very unsightly. It has troubled the textile printin...

AI Technical Summary

Problems solved by technology

[0002] Some pure cotton fabrics with high brightness (such as bright red, orange red, fluorescent yellow) are dyed with reactive dyes. If the cotton fabric of this color needs to be THPC flame retardant, and THPC flame retardant has very strong reduction , it is easy to destroy the molecular structure of reactive dyes, resulting in bright red, orange, fluorescent yellow and other cotton flame-retardant fabrics, light fastness is only 1-2, wearing such fabrics in some strong light conditions, such as offshore drilling Platforms, oil field exploration, and Southeast Asia and other regions, it may only take a few days or ten days for the color of such clothes to fade seriously, which is very unsightly

It has troubled the textile printing and dyeing industry for many years. As we all know, high-brightness flame-retardant protective clothing has been favored by many industries. The poor light fastness often embarrasses the wearer, and the back and front chest often have different colors. In some cases, new clothes have to be replaced, resulting in a great waste