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 fluores

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1 Loose fiber impregnation treatment

[0023] The loose-fibrous cotton or regenerated cellulose fiber contaminated with fluorescent whitening agent is first scoured and bleached, and then the fluorescent eliminator prepared by the chlorine dioxide method is taken and diluted with water to prepare a chlorine dioxide content of 3.5 %(Owf), adjust the pH of the solution to 3.5-4.5 with HCl or HAc, immerse the loose fibers to be treated in the above-prepared solution, the fiber weight to the weight of the solution is 1:25, the solution is heated Heat up to 95°C for 60 minutes to suppress or eliminate lightly contaminated fluorescence.

Example Embodiment

[0024] Example 2 Jigger treatment

[0025] The cotton fabric (which has been scoured and bleached) containing the fluorescent whitening agent is wound on the atmospheric jigger, and the fluorescent elimination treatment is carried out under the following conditions:

[0026] Add the fluorescence eliminator prepared according to the chlorine dioxide / sodium chlorite method into the jig dyeing machine, add the amount of 3.0% (owf), adjust the pH value of the solution to 4.0 with HAc, treat it at 95℃ for 6 passes, and wash 2 Then, in an aqueous solution containing 1~2g / L of sodium thiosulfate and 1~2g / L of soda ash, treat it for 2 courses at 60°C, and then wash it with water for 3 courses to eliminate the fluorescence on the fabric.

Example Embodiment

[0027] Example 3 Dipping treatment of wool fabric

[0028] The fluorescent wool textile to be treated is immersed in the solution prepared according to the peracetic acid method, and the ratio of the weight of the fabric to the weight of the solution is 1:30, and the solution is heated to 70° C. and heat-preserved for 90 minutes. Can suppress or eliminate lightly contaminated fluorescence.

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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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