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Preparation technology of self-cleaning wool fabric

A preparation process and self-cleaning technology, applied in the field of fabric weaving, can solve problems such as fabric color difference, and achieve the effect of improving adsorption

Inactive Publication Date: 2019-03-01
JIANGSU EAST CHINA TEXTILE PROD TESTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, butane tetracarboxylic acid or citric acid is used as a cross-linking agent, which can increase the adhesion of nano-titanium dioxide on the fiber surface, but the color of the fabric pretreated by polycarboxylic acid changes, which directly leads to the existence of fabrics before and after self-cleaning treatment. chromatic aberration

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The preparation technology of embodiment 1 self-cleaning wool fabric comprises the following steps:

[0017] S1: Wash the wool fabric with deionized water, then pretreat the wool fabric by immersing it in an aqueous solution of polyolefinic acid for 60 minutes, take it out and dry it, and then wash and dry it;

[0018] S2: Soak the wool fabric obtained in S1 with titanium dioxide-silica sol for 30 minutes, squeeze out the liquid until the liquid retention rate is 80%, pre-bake at 90°C for 4 minutes, bake at 130°C for 2 minutes, and place the obtained fabric in a boiling water bath in wastewater for 30 minutes , Squeeze the liquid until the liquid-carrying rate is 80%, bake again at 130°C for 2 minutes, and finally dry at 60°C to obtain the finished self-cleaning wool fabric.

[0019] The polyalkenoic acid is hexadienedioic acid.

[0020] The concentration of polybasic acid in polybasic acid aqueous solution is 80g / L.

[0021] The molar ratio of titanium dioxide to sil...

Embodiment 2

[0024] The difference between embodiment 2 and embodiment 1 is:

[0025] S1: Pretreat the wool fabric by immersing it in the aqueous polyacrylic acid solution for 90 minutes;

[0026] S2: Soak the wool fabric obtained in S1 with titanium dioxide-silica sol for 20 minutes, squeeze the liquid until the liquid retention rate is 100%, pre-bake at 80°C for 5 minutes, bake at 120°C for 3 minutes, and place the obtained fabric in a boiling water bath in wastewater for 20 minutes , Squeeze the liquid until the liquid-carrying rate is 100%, bake again at 120°C for 3 minutes, and finally dry at 50°C.

[0027] The polyolefinic acid is maleic acid.

[0028] The concentration of polyolefinic acid in the aqueous solution of polyolefinic acid is 60g / L.

[0029] The molar ratio of titanium dioxide to silicon dioxide in the titanium dioxide-silica sol is 1.1:1.

[0030] The polybasic acid aqueous solution also contains an additive, the additive is sodium hypophosphite, and the weight percen...

Embodiment 3

[0032] The difference between embodiment 3 and embodiment 2 is that

[0033] S1: Pretreat the wool fabric by immersing it in the aqueous polyacrylic acid solution for 80 minutes;

[0034] S2: Dip the wool fabric obtained in S1 into titanium dioxide-silica sol for 25 minutes, squeeze the liquid to a liquid retention rate of 90%, pre-bake at 85°C for 4.5 minutes, bake at 125°C for 2.5 minutes, and place the obtained fabric in boiling water in waste water Bath for 25 minutes, squeeze out the liquid until the liquid-carrying rate is 90%, bake again at 125°C for 2.5 minutes, and finally dry at 55°C.

[0035] The polybasic acid is glutaconic acid.

[0036] The concentration of polyolefinic acid in the aqueous solution of polyolefinic acid is 70g / L.

[0037] The molar ratio of titanium dioxide to silicon dioxide in the titanium dioxide-silica sol is 1.05:1.

[0038] The polybasic acid aqueous solution also contains an additive, which is formed by mixing sodium hypophosphite and ur...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a preparation technology of a self-cleaning wool fabric. The preparation technology comprises two steps of pre-treating a wool fabric and carrying out sol treatment. The preparation technology of the self-cleaning wool fabric takes polyenoic acid as a pre-treatment agent; furthermore, the acidity of preferable binary enoic acid is weaker than that of citric acid; the colorchange of the fabric is small before and after pre-treatment; the polyenoic acid can be subjected to esterification crosslinking with wool fibers to generate new ester group and peptide bond; the adsorption of the fabric on nano titanium dioxide and silicon dioxide particles is improved and the fabric has self-cleaning performance.

Description

technical field [0001] The invention relates to the technical field of fabric weaving, in particular to a preparation process of self-cleaning wool fabric. Background technique [0002] Pure wool fabric has natural and soft color and good warmth retention effect. It is the first choice fabric for making high-end suits and coats. The fabric of winter coats is fluffy and soft, and it is cumbersome to clean after stains are attached. High-end coats are mostly dry-cleaned. If the modification of fabric self-cleaning in the prior art is TiO 2 The sols and their dopants were applied to ordinary wool fabrics without preshrunk finishing for self-cleaning finishing research. The ordinary wool fabric after self-cleaning finishing has self-cleaning ability, and the organic stains attached to the surface of the fabric can be decomposed and disappeared under sunlight or ultraviolet light irradiation for a certain period of time. The stain cleaning process can be completed without manp...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/203D06M11/46D06M11/79D06M11/70D06M13/432D06M101/12
CPCD06M11/46D06M11/70D06M11/79D06M13/203D06M13/432D06M2101/12
Inventor 查神爱李红侯莉敏丁巧英
Owner JIANGSU EAST CHINA TEXTILE PROD TESTING CO LTD
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