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Preparation method of long-acting, anti-bacterial and mould-proof cotton fabric

An antibacterial and mildew-proof technology for cotton fabrics, which is applied to plant fibers, textiles, papermaking, fiber treatment, etc., can solve the problems of loss of antibacterial and anti-mildew properties of cotton fabrics, poor anti-mold and mildew properties, etc., achieve excellent anti-bacterial activity, improve Combination fastness, improve the effect of binding force

Inactive Publication Date: 2017-11-17
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a preparation method for long-acting antibacterial and mildew-proof cotton fabrics, which solves the problem that cotton fabrics have poor antibacterial and mildew-proof properties, and the cotton fabrics lose their anti-bacterial and mildew-proof properties rapidly as the number of washings increases.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] A preparation method for long-acting antibacterial and mildew-proof textiles, characterized in that:

[0029] The concrete steps of described step one are as follows:

[0030] (1) Dissolve 0.5-3 g of nano-zinc oxide in 50 g of deionized water, and ultrasonically disperse for 0.5 h at a power of 200-400 W to obtain a nano-zinc oxide aqueous dispersion;

[0031] (2) Add the nano-zinc oxide aqueous dispersion obtained in the step 1 (1) to the three-necked flask, dissolve 0.01-0.1 g of silane coupling agent KH-550 in 10 g of deionized water, and add it to the In the three-necked flask mentioned above, chemical surface modification was carried out, and the reaction was carried out at 80 ° C for 0.5 h;

[0032] (3) Dissolve 0.025-0.05 g of silver nitrate in 30 g of deionized water, add it to the reaction system obtained in step 1 (2), and react for 0.5 h;

[0033] (4) Dissolve 0.035-0.0875 g of sodium citrate in 30 g of deionized water, add dropwise to the reaction system o...

Embodiment 1

[0043] A preparation method for long-acting antibacterial and mildew-proof cotton fabric, comprising the steps of:

[0044] Step 1: Preparation of Ag / ZnO nanocomposite antibacterial agent by chemical reduction method:

[0045] Dissolve 2.0 g of nano-zinc oxide in 50 g of deionized water, and ultrasonically disperse for 0.5 h at a power of 200 W to obtain a nano-zinc oxide aqueous dispersion;

[0046] Dissolve 0.06 g of silane coupling agent KH-550 in 30 g of deionized water to obtain an aqueous solution of silane coupling agent KH-550;

[0047] 0.02 g of silver nitrate was dissolved in 30 g of deionized water to obtain an aqueous solution of silver nitrate;

[0048] 0.035 g of trisodium citrate was dissolved in 30 g of deionized water to obtain an aqueous solution of trisodium citrate;

[0049] Raise the temperature of the water bath to 80 °C, add the nano-zinc oxide aqueous dispersion and the silane coupling agent KH-550 aqueous solution into the three-necked flask, and kee...

Embodiment 2

[0055] A preparation method of long-acting antibacterial and mildewproof cotton fabric, comprising the following steps:

[0056] Step 1: Preparation of Ag / ZnO nanocomposite antibacterial agent by chemical reduction method:

[0057] Dissolve 2.0 g of nano-zinc oxide in 50 g of deionized water, and ultrasonically disperse it for 0.5 h at a power of 300 W to obtain an aqueous nano-zinc oxide dispersion;

[0058] Dissolve 0.06 g of silane coupling agent KH-550 in 30 g of deionized water to obtain an aqueous solution of silane coupling agent KH-550;

[0059] Dissolve 0.04 g of silver nitrate in 30 g of deionized water to obtain an aqueous silver nitrate solution;

[0060] Dissolve 0.07 g of trisodium citrate in 30 g of deionized water to obtain an aqueous solution of trisodium citrate;

[0061] The water bath was heated to 80 °C, the nano-zinc oxide aqueous dispersion and the silane coupling agent KH-550 aqueous solution were added to the three-necked flask, and the reaction was ...

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Abstract

The invention relates to a preparation method of long-acting, anti-bacterial and mould-proof cotton fabric. The preparation method is implemented through steps as follows: firstly, aminated modified nano-ZnO is prepared from nano-ZnO and a silane coupling agent KH-550 as raw materials with a chemical modification method, a silver nitrate and trisodium citrate aqueous solution is added to the system, and an Ag / ZnO nano-composite antibacterial agent is prepared with a chemical reduction method; cotton fabric is subjected to epoxidation pretreatment with alkali liquor with concentration being 5%-8% and epichlorohydrin; finally, the Ag / ZnO nano-composite antibacterial agent is applied to anti-bacterial and mould-proof finish of the cotton fabric. Under the synergistic effect of Zn ion dissolution of ZnO, photocatalytic activity and broad-spectrum antibacterial activity of nano-Ag, broad-spectrum efficiency of the antibacterial agent is improved, certain mould-proof performance on aspergillus niger is realized, and long-lasting action of anti-bacterial and mould-proof performance of the cotton fabric is improved through covalent bonding between amino groups on the surface of the nano-composite antibacterial agent and epoxy groups on the surface of the pretreated cotton fabric. The preparation method of the long-acting, anti-bacterial and mould-proof textiles is simple and environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of antibacterial and mildew-proof textiles, and in particular relates to a preparation method of long-acting antibacterial and mildew-proof cotton fabrics. Background technique [0002] Textiles are the pillar industry of my country's national economy, and are widely used for their excellent sweat-wicking and moisture-absorbing clothing properties and good hand feeling. However, the cellulose rich in textiles, the adherent human sweat, and the unique porous structure provide a favorable living environment for the proliferation of bacteria and molds. Excessive bacteria and molds growing on textiles will not only cause mildew and corruption of textiles, There is even a risk of cross-infection through transmission. Therefore, textile antibacterial finishing technology is very necessary. [0003] Antibacterial finishing agents for textiles can be mainly divided into natural antibacterial agents, organic antiba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/44D06M11/83D06M101/06
CPCD06M11/44D06M11/83D06M2101/06
Inventor 高党鸽李亚娟刘静静吕斌马建中
Owner SHAANXI UNIV OF SCI & TECH
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