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Method for suppressing and eliminating fluorescence of textile product by fluorescence quenching agent

A technology of fluorescence eliminating agent and textile products, which is applied in the direction of textiles and papermaking, fiber treatment, plant fiber, etc. It can solve the problems of limited removal effect and inability to completely remove fluorescent substances, and achieve the effect of strong damage with little damage

Inactive Publication Date: 2008-05-28
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The aforementioned chlorine dioxide, peracetic acid and fluorescence inhibitors have a certain effect on eliminating or inhibiting fluorescence, but for textiles with strong fluorescence, their removal effect is limited, and fluorescent substances cannot be completely removed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1 Loose fiber impregnation treatment

[0023] The loose fibrous cotton or regenerated cellulose fiber mixed with fluorescent whitening agent is firstly scoured and bleached, and then the fluorescent eliminating agent prepared by the chlorine dioxide method is diluted with water to prepare a chlorine dioxide content of 3.5 % (o.w.f.), use HCl or HAc to adjust the pH value of the solution to 3.5-4.5, soak the loose fiber to be treated in the solution prepared above, the ratio of fiber weight to solution weight is 1:25, and heat up the solution Lightly stained fluorescence can be suppressed or eliminated by incubating at 95°C for 60 minutes.

Embodiment 2

[0024] Embodiment 2 Dye Jigger Treatment

[0025] Cotton fabric containing fluorescent whitening agent (scouring and bleaching treatment) is wound on the atmospheric pressure jigger, and fluorescent elimination treatment is carried out under the following conditions:

[0026] Add the fluorescence eliminating agent prepared by the chlorine dioxide / sodium chlorite method into the jigger, the amount added is 3.0% (o.w.f.), adjust the pH value of the solution to 4.0 with HAc, treat it at 95°C for 6 times, and wash it with water for 2 Then, in an aqueous solution containing 1-2g / L sodium thiosulfate and 1-2g / L soda ash, treat 2 times at 60°C, and then wash 3 times with water to eliminate the fluorescence on the fabric.

Embodiment 3

[0027] Example 3 Dipping treatment of wool fabric

[0028] Immerse the fluorescent wool textile to be treated in the solution prepared by the peracetic acid method, the ratio of fabric weight to solution weight is 1:30, raise the temperature of the solution to 70°C and keep it warm for 90 minutes. Lightly stained fluorescence can be suppressed or eliminated.

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PUM

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Abstract

The invention relates to a method to repress and eliminate the fluorescence of fabric, which comprises chlorine dioxide fluorescence elimination method, chlorine dioxide or sodium chlorite fluorescence elimination method and peroxy-acetic acid fluorescence elimination method, wherein these methods can effectively repress or eliminate the fluorescence on the fabric made of fibrin fiber or protein fiber, the processed fabric has little damage under strong force, the method can eliminate the fluorescence on the fabrics and also can be used in the colorful fabric color-stripping process.

Description

technical field [0001] The invention belongs to the field of fluorescence elimination methods, in particular to a method for suppressing and eliminating fluorescence produced by fluorescent whitening agents on textile products. Background technique [0002] In textile products, there is fluorescence due to the mixing of fluorescent substances in the raw materials, or the adhesion of fluorescent whitening agents during processing, or the improper addition of fluorescent whitening agents, or the presence of fluorescent substances due to application restrictions (such as baby products in some countries) etc.), often need to be removed. At present, the reports on the elimination methods of fluorescent substances are mostly found in paper recycling treatment, and there is no public report on the elimination methods of fluorescent whitening agents on textiles. [0003] There are two types of conventional fluorescence elimination methods. One is to use oxidant treatment to destroy...

Claims

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Application Information

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IPC IPC(8): D06M11/30D06M13/196D06M11/56D06M11/76D06M101/06D06M101/12
Inventor 王建庆李戎
Owner DONGHUA UNIV
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