Non-woven fabrics in non-durable clothing applications

Applications of non-woven fabrics in non-durable garments such as spunlace medical protective clothing, PP disposable spunbond protective clothing and SMS medical protective clothing have become widespread. At present, the development of new products in this area includes two aspects: one is the new development of existing materials in the field of apparel applications; the other is the development of new non-woven fabrics. Non-durable non-woven fabric SMS non-woven fabrics are spunbond and meltblown composite products, with high strength, good filter performance, non-binding agents, non-toxic, etc., has been in the field of medical and industrial filtration materials An important role, the recent application is the use of SMS breathable, does not produce fiber dust to prevent the body with the characteristics of particle exchange with the outside world, its use for pharmaceutical, bio-engineering, optoelectronics processing, electrical components and chips need to be highly clean production environment in. Spunbond nonwovens are made of high strength continuous filaments, occupying a large proportion of the disposable protective clothing market, the latest development is the addition of special additives or finishing in the spunbond nonwoven production process, so that Products are flame retardant, anti-static, radiation protection, hydrophobic moisture, antibacterial, thermal and other functions. In the new fiber development, water-soluble non-woven is an environmentally friendly products, its application is gradually expanding. Water-soluble polyvinyl alcohol fiber production spunlace non-woven fabric, is the production of radiation protection, anti-pollution clothing, a good material. In order to increase the protective effect, but also with the water-soluble film compound to increase the protective clothing barrier performance. In addition, in the use of new fibers, foreign countries have also developed in the non-woven fabric production process by adding superabsorbent fiber (SAF) technology. This SAF-containing non-woven fabric has a particularly good soft feel and water absorption, when used as a lingerie to quickly absorb the body's sweat, increase the clothing and the human body between the micro-environment comfort. In the development of new composite non-woven materials, the United States developed a new type of cotton fiber composite non-woven fabrics, cotton and polypropylene surface layer of heat-bonded non-woven fabrics, and spunbond fabric composed of two or three layers of composite materials , The product feels similar to cotton knitwear, has good strength and elongation, water absorption and water retention, wicking speed, the advantages of small pilling performance, after finishing, elongation of 50% of the instantaneous elastic recovery The rate can reach 83% ~ 93%, suitable for making medical isolation clothes and disposable underwear. In addition, the new generation of biochemical protective clothing developed by the U.S. military takes full advantage of the advantages of three types of woven, knitted and non-woven fabrics. The outer layer of the protective clothing is anti-tearing nylon / cotton fiber poplin, which is water-repellent; Activated carbon non-woven fabric; the innermost tricot fabric. Compared with the existing protective clothing, this clothing to provide military special chemical protection at the same time, but also increased the clothing lightweight, and reduce the cost, can withstand at least 3 times washing. Durable non-woven fabric due to non-woven fabric drape, flexibility, strong stretch, opacity and pilling and other aspects of the difference with the fabric requirements, and the lack of a certain sense of artistic appearance, which applies to Durable clothing areas have considerable difficulty. However, the non-woven fabric is not easy to edge and slip, can be directly involved in the design of fabric, sewing the edge of the garment does not require ironing and lock the edge of the characteristics, which is different from the woven and knitted fabrics. It is optimistic about the advantages of simple non-woven garment sewing technology, many researchers and enterprises have the courage to face the risks of product development. In recent years, the research focuses on how to improve the non-woven fabric drape, abrasion resistance, elasticity and resilience and other properties, making it suitable for durable fabric requirements. BBAFiberweb and DowChemical joint venture developed a new type of spunbond elastic non-woven fabrics, fiber core-sheath bicomponent fibers, the core is an elastomer, the cortex is a very extensible polymer, by adjusting the skin core The different proportions of the two components give the resulting spunbond nonwovens very good elasticity, low modulus of elasticity and high strength and dimensional stability, which makes durable fabrics for spunbond nonwovens Provided the possibility. Japan's Kuraray and domestic enterprises are jointly developed microfiber spunbond non-woven fabrics, the use of Ex-cevaltm soluble resin and PP or PE, PA, such as composite spinning, a component of PP (or PE, PA), and the other A combination is Excevaltm. Excevaltm is soluble in water below 90 ° C and is biodegradable and absorbs moisture. It is hydrophilic and thermally bonded with PP (or PE, PA) and is very easy to process into webs. This spunbond nonwoven has much better water absorption properties than conventional spunbond, despite its low areal density and comparable strength to traditional spunbond fabrics, making it a good candidate for durable apparel. Spunlace nonwovens have the characteristics of soft feeling, bulkiness, high hygroscopicity, wide use of fiber raw materials, etc., and are the most suitable non-woven fabrics for garments. Therefore, their applications in durable garments are the most studied. US patent reported a durable spunlace non-woven, with good wear resistance and drape, easy to pilling, good color fastness, when the vertical direction of machine elongation of 50%, the recovery rate can reach 90 %, And can be washed at least 25 times. The non-woven fabric has good elasticity, suitable for daily wear of shirts and outerwear, both personal comfort, good mechanical strength and aesthetics in one, is the ideal garment clothing materials.