CN107299437A - Anti-bacterial fibre yarn - Google Patents

Abstract

The invention discloses an antibacterial yarn, which belongs to the technical field of textiles. The yarn is made of two or more of the quaternary ammonium type, quaternary phosphonium salt type, and silver-loaded cotton fiber type antibacterial fibers synthesized by patents CN101879466B, CN102720057B, CN103266473B, and CN103835124B, and cotton, viscose, tencel, polyester, nylon, One or several kinds of modal and soybean fiber blended fibers are prepared with bamboo charcoal fibers through the processes of opening and cleaning, wool blending, carding, drawing, roving, and spun yarn. The fabric made of the antibacterial yarn has good antibacterial and antibacterial properties against Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa, and the antibacterial property can be maintained and regenerated after fifty times of washing. The antibacterial fabric not only has good antibacterial performance, but also has good spinnability, light texture, and excellent mechanical strength. It can be developed into a series of products such as antibacterial socks and antibacterial underwear to improve skin affinity, hygroscopicity, and comfort.

Description

Antibacterial Fiber Yarn

technical field

The invention belongs to the technical field of textiles, in particular to a chemically grafted antibacterial fiber yarn.

Background technique

In my country, with the improvement of people's living standards and hygiene awareness, the demand for antibacterial fabrics is increasing. Antibacterial fabrics can block the contact of various harmful bacteria with the human body and kill bacteria. At present, antibacterial fibers are mainly prepared by blending spinning method, composite blending method, post-finishing method, and graft modification method. Usually, it is difficult to use antibacterial fiber alone to prepare civil and medical fabrics with spinnability, hygroscopicity, air permeability, antistatic property, anti-pilling property, skin-friendly property, etc., so that the benefit of antibacterial fiber fabrics to the people and the society is limited. . At present, there are the following reports about antibacterial yarn and fiber:

① Chinese patent CN1303281C reports a method of antibacterial processing of yarns. Antibacterial processing is carried out on yarns through post-finishing method. After the antibacterial agent is fused with wax, the yarn is waxed, and then treated with water vapor to allow the antibacterial agent to penetrate into the yarn. Inside, the antibacterial agent is chitosan, carboxymethyl chitosan, 2,4,4-trichloro-2-hydroxyl-diphenyl ether, etc.; ② Chinese patent CN100537867C reports a dissolution-type anti-ultraviolet, antibacterial Blended yarns that conduct moisture and dry quickly, eluting antibacterial fibers (adding Triclosan antibacterial agent or nano-silver to the spinning solution) 30%: 30% anti-ultraviolet fibers: 40% moisture-conducting fibers; ③Chinese patent CN103806151B reported a Apocynum fiber blended antibacterial cool and comfortable yarn and preparation method thereof, aloe viscose fiber 35-50%: apocynum fiber 15-30%: milk fiber 35-45%; ④ Chinese patent CN103911708B reported an antibacterial blended yarn Manufacturing process, the blending ratio is 40-50% of black bamboo charcoal: 10-15% of modal: 15-20% of long-staple cotton: 20-25% of apocynum fiber; Reported a method for preparing antibacterial fabrics with dyed melt-spun yarn fabrics after finishing with quaternary ammonium salts; Thread quaternization makes it antibacterial; ⑦ Chinese patent CN206244974U a kind of antibacterial warm yarn has reported a kind of composite spinning antibacterial yarn, the core layer is titanium dioxide catalyst fiber and bamboo charcoal blended fiber and thermal fiber cross-twisting, the surface layer is Antibacterial coating, thermal insulation coating, thermal insulation coating; 8. Chinese patent CN106012551A a kind of preparation method of hemp cotton plus antibacterial fiber blended yarn reports a kind of antibacterial blended yarn, wherein hemp: cotton=2-6:1, The antibacterial fiber consists of 10-30 parts of nano-zinc oxide polyurethane microcapsules, 10-20 parts of silver nitrate composite particles, 10-20 parts of nano-silver oxide composite particles, 10-20 parts of silk yarn, 10-15 parts of sisal yarn, etc.; ⑨The document "Synthesis and Application of Quaternary Phosphate Antibacterial Finishing Agent (Master's Thesis of Donghua University in 2013)" reported the synthesis and post-finishing of pure cotton antibacterial fabrics.

It can be seen from the above literature reports that antibacterial yarns are mainly silver-based yarns, such as patent ②⑧; blended spinning method, composite spinning method antibacterial fiber yarn, such as patent ②⑦; natural antibacterial fiber yarn, such as patent ③④; After-finishing antibacterial fiber yarn, such as patent ①⑤⑥⑧ and literature ⑨.

Compared with the dissolution-type antibacterial fiber, the chemically grafted non-elution antibacterial fiber has the characteristics of strong antibacterial performance and long-lasting antibacterial property. However, since the mechanical strength of the fiber itself is reduced after being processed by various chemical methods, it is difficult to weave it into yarn, the fiber is hard, and the skin affinity is poor. Therefore, there is an urgent need to develop chemically grafted antibacterial yarns to meet market demand.

Contents of the invention

The object of the present invention is to provide a chemically grafted antibacterial fiber yarn with good antibacterial performance and good mechanical performance.

Based on market demand and the purpose of the present invention, the applicant, on the basis of previous patents CN101879466B, CN102720057B, CN103266473B, and CN103835124B, developed and applied the excellent antibacterial properties of the synthesized quaternary ammonium type, quaternary phosphonium salt, and silver-loaded cotton antibacterial fibers, overcoming Using antibacterial fibers alone to process antibacterial fabrics has disadvantages such as poor spinnability and skin affinity, which is conducive to market promotion and application.

The technical scheme of the present invention is as follows: two or more of the quaternary ammonium type, quaternary phosphonium salt, and silver-loaded cotton antibacterial fibers synthesized by patents CN101879466B, CN102720057B, CN103266473B, and CN103835124B are combined with cotton, viscose, tencel, polyester, nylon, One or several kinds of blended fibers in modal and soybean fibers are blended with bamboo charcoal fibers. Antibacterial fibers, blended fibers, and bamboo charcoal fibers are blended according to (30-70): (5-50): (5-70) blending ratio. Antibacterial fiber yarns are prepared through processes such as cleaning, closing, carding, drawing, roving, and spun yarn.

Preferably: the blending ratio of antibacterial fiber, blended fiber and bamboo charcoal fiber: (50-60): (20-30): (20-30).

Preferably: two kinds of quaternary ammonium type, quaternary phosphonium salt, and silver-loaded cotton antibacterial fibers synthesized by patents CN101879466B, CN102720057B, CN102720057B, CN103266473B, and CN103835124B, and one of cotton, viscose, Tencel, polyester, nylon, modal, soybean fibers, and bamboo charcoal fibers are blended,

The beneficial effects of the present invention are as follows: 1. Blend chemically grafted quaternary ammonium groups, quaternary phosphonium salts, and silver-loaded cotton antibacterial fibers to make antibacterial yarns, improve the spinnability and skin-friendly properties of antibacterial fibers through blending, and make the fabrics woven from the yarns On the premise of ensuring the antibacterial performance, it has sufficient mechanical properties, the yarn breaking strength reaches 12-20cN/tex, and has excellent skin-friendly and deodorizing properties, which can meet the consumption needs of consumers and increase the popularity of antibacterial fabrics. 2. The antibacterial fabric made has good antibacterial and antibacterial properties against Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa, and the antibacterial rate against Staphylococcus aureus, Escherichia coli and Candida albicans is ≥ 99%, after fifty times of washing, it is antibacterial The rate reaches the AAA grade requirements of FZ/T 73023‐2006 antibacterial knitwear, with long-lasting antibacterial properties and excellent antibacterial properties. 3. The developed socks, insoles, clothing and other fabrics have achieved the unity of antibacterial properties, spinnability, skin-friendly properties, hygroscopicity, and deodorization properties, which is conducive to the later realization of the industrialization and marketization of the antibacterial fabrics.

detailed description

The present invention is further described below in conjunction with embodiment.

Example 1

The blending ratio of the antibacterial yarn, antibacterial fiber: cotton or nylon: bamboo charcoal fiber = 45:45:10, is made into 40 ^s yarn through the processes of opening and cleaning, blending, carding, drawing, roving, and spun yarn.

The antibacterial fiber is selected from CN102720057B and CN103266473B synthetic antibacterial fiber.

Based on the Candidate List of Substances of Very High Concern (according to EU REACH Regulation No. 1907/2006) published by the European Chemicals Agency as of December 17, 2014, screening tests were performed on 161 substances of very high concern (SVHC). Analyzed by ICP‐OES, UV‐VIS, GC‐MS, HPLC‐DAD/MS and colorimetric methods. The results are shown in Table 1:

Table 1

concentration% SVHCs in the Candidate List for all tests ND

The 161 substances of very high concern include 4,4-diaminodiphenylmethane, anthracene, cobalt dichloride, diarsenic trioxide, sodium dichromate, lead chromate, formamide, 1-bromopropane, 4-aminobiphenyl, Le phenol and so on.

The raw material antibacterial fiber strength is shown in Table 2:

Table 2

Breaking force cN Quaternary ammonium antibacterial fiber 6.12 Quaternary phosphonium salt antibacterial fiber 3.9‐4.4

The intensity of the antibacterial blended yarn of the present invention is shown in Table 3:

table 3

The antibacterial performance test of the antibacterial blended yarn of the present invention adopts FZ/T 73023-2006 antibacterial knitwear and the oscillation method, and the results are shown in Table 4:

Table 4

Example 2

The blending ratio of the antibacterial yarn is antibacterial fiber: viscose fiber: bamboo charcoal fiber 60:20:20, and the 40 ^s yarn is made through the processes of opening and cleaning, wool blending, carding, drawing, roving, and spun yarn. Antibacterial cloth is woven from antibacterial yarn.

The antibacterial fiber is selected from the antibacterial fiber synthesized by CN103266473B and CN103835124B.

The antibacterial performance test of antibacterial knitted fabrics adopts FZ/T 73023‐2006 antibacterial knitted fabrics, shock method, and the results are shown in Table 5:

table 5

Antibacterial knitted fabric multiple integrity skin irritation test, "Disinfection Technical Specifications" Ministry of Health (2002 edition) 2.3.3.3.3, the results are shown in Table 6:

Table 6

According to GB/T8629 washing 10, 30, 50 times, the antibacterial performance of antibacterial cloth is shown in Table 7:

Table 7

Antibacterial knitwear FZ/T 73023‐2006 standard is shown in Table 8:

Table 8

Example 3

Described antibacterial yarn blending ratio, antibacterial fiber: blended fiber (cotton, dacron, modal): bamboo charcoal fiber=50: (10:10:10): 20, through opening and cleaning, wool, carding, drawing, The roving, spun yarn and other processes are made into ^40s yarn, and the antibacterial yarn is processed into antibacterial socks.

The antibacterial fiber is selected from the antibacterial fiber synthesized by CN101879466B and CN102720057B.

Antibacterial socks antibacterial test, using GB/T20944.2-2007 Evaluation of antibacterial properties of textiles Part II: Absorption method, the results are shown in Table 9:

Table 9

Example 4

Described antibacterial yarn blending ratio, antibacterial fiber: (cotton, viscose, tencel, soybean fiber): (bamboo charcoal fiber)=55: (5: 5: 5: 5): 25, through opening and cleaning cotton, combining wool , carding, drawing, roving, spun yarn and other processes to make 40 ^s yarn, and antibacterial towels are processed through antibacterial yarn processing.

The antibacterial fiber is selected from the antibacterial fiber synthesized by CN102720057B and CN103835124B.

Antibacterial towel antibacterial test, using GB/T20944.2-2007 Evaluation of antibacterial performance of textiles Part II: Absorption method, the results are shown in Table 10:

Table 10

Claims (3)

1. Antibacterial fiber yarn, characterized in that two or more of the quaternary ammonium type, quaternary phosphonium salt type, and silver-loaded cotton fiber type antibacterial fibers synthesized with patents CN101879466B, CN102720057B, CN103266473B, and CN103835124B are combined with cotton and viscose , Tencel, polyester, nylon, modal, soybean fiber or one or more blended fibers are blended with bamboo charcoal fiber, and antibacterial yarn is prepared through the processes of opening and cleaning, wool blending, carding, drawing, roving, and spun yarn; antibacterial yarn Fiber and blended fiber and bamboo charcoal fiber blended ratio: (30-70): (5-50): (5-70). 2. The antibacterial fiber yarn according to claim 1, characterized in that the ratio of antibacterial fiber to blended fiber to bamboo charcoal fiber is preferably (50-60): (20-30): (20-30). 3. according to the described antibacterial fiber yarn of claim 1 or 2, it is characterized in that, two kinds of quaternary ammonium type, quaternary phosphonium salt, silver-loaded cotton antibacterial fiber and cotton, viscose One of rubber, tencel, polyester, nylon, modal, soybean fiber is blended with bamboo charcoal fiber.