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Antibacterial fabric finishing agent and its preparation method

A technology of antibacterial fabric and slurry, which is applied in fiber treatment, textiles and papermaking, etc. It can solve the problems that light-colored and pure white fabrics cannot be processed, antibacterial agents cannot be fixed stably, and antibacterial treatment cannot be directly used to achieve Good market prospect, overcoming the effect of poor fungal killing effect and low cost

Inactive Publication Date: 2008-06-11
NORTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with organic antibacterial agents, inorganic antibacterial agents have advantages in terms of safety, durability, heat resistance, etc., but most of the inorganic antibacterial agents on the market currently use silver ions as antibacterial components. It is easy to change from white to dark brown in the air. Most of the prior art can only deal with dark-colored fabrics, so that the discoloration of silver is not obvious, and it cannot deal with light-colored, pure white fabrics, which requires both antibacterial and beautiful appearance. The application of the fabric is limited
Secondly, the antibacterial effect on fungi is poor, and the antibacterial agent cannot be stably fixed on the textile, and the washability is poor, so it cannot well meet the requirements of practical applications.
[0005] Although Chinese patent application (patent application number 2005100041626.8) provides a kind of preparation method of ultrafine composite inorganic antibacterial agent, the ultrafine composite inorganic antibacterial agent obtained by this method has Nasicon type crystal structure or layered crystal with good ion exchange performance structure, has a strong ion exchange capacity, and it has a long-lasting antibacterial effect by slowly releasing antibacterial components or generating active oxygen, but it cannot be directly used for antibacterial treatment of fabrics

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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  • Antibacterial fabric finishing agent and its preparation method
  • Antibacterial fabric finishing agent and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] The preparation method of antibacterial agent refers to the preparation method disclosed in Chinese patent application 2005100041626.8, for example:

[0062] Weigh the materials respectively according to the ratio of metatitanic acid: 98% sulfuric acid (wt)=1: 2.0~3.0, first dilute 98% sulfuric acid with deionized water to 70~90%, and place it in the reactor. Finely ground, sieved through a 325-400 mesh sieve, and then added to sulfuric acid; start the mixer to carry out acidolysis reaction. The reaction temperature is controlled between 70 and 130°C, and the reaction time is controlled between 10 and 40 minutes; deionized water is measured according to the ratio of metatitanic acid: deionized water (wt) = 1:3 to 5, and added to the reactor for leaching Acid hydrolysis product, the temperature is controlled between 40 ~ 70 ℃; after filtering out the insoluble matter, the titanium solution is obtained, and its concentration is 80 ~ 210g / L (using TiO 2 meter, the same be...

Embodiment 2

[0066] Take by weighing the prepared 2g antibacterial agent of embodiment 1 and join in 81ml water, then weigh respectively the dispersant of 0.1g (sodium hexametaphosphate: AEO-9=1: 1) and 0.12g discoloration inhibitor (benzimidazole: Add o-toluidine=1:0.3), stir and ultrasonically disperse for 30min; then add 15g of binder T-815, stir and ultrasonically disperse for 30min; then add 2.5g of thickener KT-501 and stir for 30min to obtain finishing Slurry; the prepared finishing slurry is immediately evenly coated on the prepared pure cotton cloth through the gauze (the coating amount is 4.8g / m 2 ); pre-bake at 100°C for 5 minutes, bake at 120°C for 3 minutes, take out, and cool naturally to obtain the finished product. Its antibacterial rate against Candida albicans, Escherichia coli, Staphylococcus aureus, etc. in 2 hours all reached above 99.5%. After 50 times of washing, its antibacterial rate still remains above 98.0%. The antibacterial fabric does not change color after ...

Embodiment 3

[0068] Take by weighing respectively the 2.5g antibacterial agent prepared in Example 1, the dispersant (sodium aluminate: AEO-9=1.5: 1) and 0.16g discoloration inhibitor (benzotriazole: ethoxymethylaniline) of 0.13g =1:0.4) into 77ml of water, stirred and ultrasonically dispersed for 30min; then added 18g of binder T-818 and stirred and ultrasonically dispersed for 30min; then added 2.3g of thickener KT-502 and stirred for 30min to obtain the finishing slurry ; The prepared finishing slurry is immediately evenly coated on the prepared polyester cotton cloth through the gauze (the coating amount is 5.0g / m 2 ); pre-bake at 100°C for 5 minutes, bake at 110°C for 3 minutes, take out, and cool naturally to obtain the finished product. Its antibacterial rate against Candida albicans, Escherichia coli, Staphylococcus aureus, etc. in 2 hours all reached above 99.0%. After 50 times of washing, its antibacterial rate still remains above 97.5%. The antibacterial fabric does not change...

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 present invention discloses one kind of antiseptic fabric finishing size and its preparation process. The antiseptic fabric finishing size consists of antiseptic agent 1-3 wt%, dispersant 0.05-0.15 wt%, adhesive 10-20 wt%, thickener 2-2.5 wt%, and color change inhibitor 0.08-0.2 wt%, except water. The antiseptic fabric finishing size has broad-spectrum antiseptic effect and the fabric finished with the antiseptic fabric finishing size has lasting antiseptic effect and has 97.5 % of the antiseptic effect maintained after washing for 50 times. The added color change inhibitor can prevent the color change of fabric effectively while raising the antiseptic effect.

Description

technical field [0001] The invention relates to an antibacterial fabric finishing slurry and a preparation method thereof. Background technique [0002] With the development of science and technology and the improvement of living standards, people pay more and more attention to a healthy and safe lifestyle. Studies have shown that there are 50 to 5,000 microorganisms per square meter on the skin of the upper body of the human body alone. They obtain nutrients from sweat and other secretions for growth, reproduction, and death metabolism. There are a large number of pathogenic bacteria in these microorganisms, which can directly cause the human body to fall ill, fall on clothes, shoes and hats, bedding and other daily textiles, and then transfer to the human body parts suitable for reproduction can also cause diseases. Therefore, endowing textiles with certain antibacterial properties is undoubtedly an important way to eliminate the spread of fungi. [0003] Fungi also hav...

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 Patents(China)
IPC IPC(8): D06M15/263
Inventor 黄岳元王亚平郭人民谢建榕米钰仪建华王玉琪
Owner NORTHWEST UNIV
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