Deodorant And Flame Retardant Hair Fibers Give Birth To New Products.

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< p > under the condition of high temperature, sweating, and tight storage of supermarket, people often wear peculiar smell, such as perspiration, body odor and foot odor, when they wear textiles.

The peculiar smell of human body is mainly due to the organic volatile gas caused by bacteria decomposing human skin secretions. The 3 typical odor molecules of sweat are ammonia, acetic acid and isovalerate. By giving antibacterial function to textiles, it can prevent the generation of some peculiar smell of human body, especially to prevent the fine smell caused by the decomposition of human dandruff or secretion caused by fine bacteria on the fabric. This is the concept of deodorization.

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< p > < strong > trace back to the source of a href= "http://www.91se91.com/news/index_c.asp" > fiber properties < /a > /strong > /p >

< p > due to the following reasons, the odour effect is limited, and the human body odor is still heavy. On the one hand, because of the safety and the prevention of the destruction of human skin flora, the national standard stipulates that the use of non dissolving antibacterial products, that is, the use of antibacterial products which can not migrate to the skin surface of the human body, will result in the limited effective distance of antibacterial textiles, with only a few tens of microns.

Therefore, the antibacterial fabric is basically effective only for the bacteria on the surface, but not for all the bacteria on the skin surface.

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< p > on the other hand, the bacteria on the surface of the skin that do not reach the surface of the textile will still produce peculiar smell, such as between the toes and toes.

For this part of the body which has already been produced, the peculiar smell of human body should be eliminated by physical or chemical means, that is, deodorization.

Deodorizing performance refers to the elimination of existing odor molecules by physical adsorption or chemical reaction.

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< p > in fact, wool fiber itself has excellent deodorizing properties. Wool fiber needs odor suppression rather than deodorization, but few specific quantitative data are reported in the literature.

More and more product development shows that it is a good way to solve the flame retardant problem of wool fabrics through blending way, such as commonly used wool / flame retardant viscose 50/50 products.

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< p > we tested and analyzed the deodorizing properties of several fibers and compared them with actual wear tests, and further tested the flame retardancy of wool blended yarns. Through practical examples, it was pointed out that wool fibers had excellent application prospects in developing multi-functional underwear with high quality, such as antibacterial, deodorant, flame retardant and so on.

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< p > experiments were conducted on 6 kinds of socks, namely cotton, hemp, viscose, wool, polyester and deodorant acrylic fiber.

Among them, wool socks are woven by 138dtex * 2 wool yarn, cotton socks are knitted by 145dtex knitted cotton yarn, hemp socks are knitted by 167dtex x 2 big hemp yarn, polyester socks are woven by 83dtex/72f filament, and the smell removing acrylic fiber socks are woven by 167dtex short fiber blended yarn, and the raw materials of the above samples are not processed.

The above fibers are blended or spun into knitting yarn, and simple socks are made as socks for trial wear. Socks are placed in water solution containing detergent powder (2g/L) and sodium carbonate (2g/L) before use, and 30min is heated at 80 degrees to remove the oil in the process of stocking.

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< p > deodorization rate test can be used to evaluate the elimination ability of sample to target gas.

The deodorizing rate of acrylic fiber was 95%, wool was 94%, cotton was 88%, viscose was 77%, hemp was 46% and polyester fiber was 17%, and there was a great difference between fibers. Besides functional fiber deodorant acrylic fiber, natural fiber wool had the best deodorization rate for ammonia, followed by cotton, while polyester had poor adsorption capacity for ammonia. For acetic acid and isovalerate, except for polyester, other fibers had extremely high deodorizing rate for two kinds of acid gases.

The modified deodorizing acrylic fiber has excellent odor elimination rate for ammonia and two kinds of acid gas.

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< p > < strong > 6 kinds of fiber deodorizing each other, /strong > < /p >

< p > > a href= "http://www.91se91.com/news/index_c.asp" > wool fiber < /a > is made up of flaky cortex cells wrapped by planar overlapping scaly epidermal cells, and its morphological structure is divided into 3 parts: scale, cortex and medullary layer. The main component is keratin. According to the structure and properties of wool fiber, its deodorizing rate for ammonia, acetic acid and isovalerate is high, and it can achieve good deodorizing purposes.

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< p > the deodorizing rate of cellulose fiber, cotton fiber and viscose fiber to ammonia is much higher than that of hemp fiber. This may be due to the low cellulose content and high crystallinity and orientation degree of hemp fiber.

In terms of morphology and structure, polyester fiber has smooth surface and no pores. From the chemical structure, there are no active groups in the main chain and side chain, so it is difficult to remove these odorant molecules by physical adsorption or chemical adsorption.

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The deodorizing effect of < p > polyester fiber is far lower than that of cotton, wool and deodorant acrylic fiber.

Sensory test results showed that the odor of cotton, hemp, wool and deodorant acrylic fabric was better than that of viscose, and obviously the odor intensity of polyester socks was the most significant.

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The flame retardant properties of < p > a href= "http://www.91se91.com/news/index_c.asp" > wool blended yarn < /a > indicate that the wool / flame retardant viscose 50/50 is a classic high-grade flame retardant fabric, such as underwear fabric, which is adopted by the US Army.

According to the previous deodorizing performance test, the combination has the function of eliminating peculiar smell at the same time.

With the increase of flame retardant viscose content, the flame retardant properties of blended yarns are getting better and better. But when the wool content reaches 60%, there will be burning through phenomenon and the duration of continuous combustion will increase.

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< p > according to the understanding of the basic properties of various fibers, and using the characteristics of natural oxygen index and deodorizing properties of wool fibers, we have developed a kind of high-grade underwear with wool fibers, which is essentially flame retardant, antibacterial, deodorant and deodorant by using multi fiber blending and synergistic flame retarding effect and finishing technology.

It uses nitrile fiber / cotton / wool / silver fiber 45/34/20/1 blended yarn, and the density of the billet is 200g/m2, which belongs to the cotton wool structure.

The multifunctional fabric has good antibacterial, flame retardant and deodorizing properties, and also has good basic properties such as color fastness, bursting strength and dimensional stability.

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