The latest application of non-woven fabrics in the field of non-durable clothing materials

The application of non-woven fabrics in non-durable clothing has been very popular, such as spunlace medical protective clothing, PP disposable spunbond protective clothing and SMS medical protective clothing. At present, the development of new products in this field includes two aspects: one is the new expansion of existing materials in the field of clothing applications; the other is the development of new non-woven fabrics. Non-durable non-woven garment fabric SMS non-woven fabric is a composite product of spunbond and meltblown. It has the advantages of high strength, good filtration performance, no adhesive, and non-toxicity. It has been used in the field of medical and industrial filtration materials. It plays an important role. The recent application is the use of SMS for ventilation, no fiber dust, and prevention of particle exchange between the human body and the outside world. It is used in pharmaceutical, bioengineering, optoelectronic processing, electrical components and chips and other highly clean production environments. in. Spunbond non-woven fabrics are composed of high-strength continuous filaments and occupy a large proportion in the disposable protective clothing market. The latest development is the addition of special additives or post-finishing in the production process of spunbond non-woven fabrics to make The product has the functions of flame retardant, antistatic, anti-radiation, hydrophobic and moisture conductive, antibacterial, and warmth. In terms of new fiber development, water-soluble non-woven fabric is an environmentally friendly product, and its application range is gradually expanding. Using polyvinyl alcohol water-soluble fiber to produce spunlace non-woven fabric is a good material for making anti-radiation and anti-pollution clothing. In order to increase the protective effect, it can also be compounded with water-soluble film to increase the barrier performance of protective clothing. In addition, in the use of new fibers, foreign countries have also developed the technology of adding super absorbent fibers (SAF) in the production of non-woven fabrics. This kind of non-woven fabric containing SAF has particularly good soft hand feeling and water absorption performance. It can quickly absorb human sweat when worn as an underwear, and increase the micro-environment comfort between clothing and human body. In the development of new composite nonwoven materials, the United States has developed a new type of cotton fiber composite nonwoven fabric, the surface layer is a thermally bonded nonwoven fabric of cotton and polypropylene fiber, and the spunbonded fabric constitutes a two-layer or three-layer composite material The product feel is similar to pure cotton knitted fabric, with good strength and elongation, water absorption and water retention, fast wicking speed, and low pilling performance. After finishing, the instant elastic recovery when the elongation is 50% The rate can reach 83% to 93%, suitable for making medical isolation clothing and disposable underwear. In addition, the new generation of biochemical protective clothing developed by the US military makes full use of the advantages of woven, knitted and non-woven fabrics. The outer layer of the protective clothing is tear-resistant nylon/cotton poplin, which has been treated with water repellency; the lining is tape Non-woven fabric with activated carbon; the innermost layer is tricot fabric. Compared with the existing protective clothing, this clothing not only provides special chemical protection for soldiers, but also increases the lightness of the clothing and reduces the cost. It can withstand at least three washings. Durable non-woven fabrics are used in apparel fabrics due to the gap between the requirements of non-woven fabrics in terms of drape, elasticity, strength, opacity and pilling, and lack of artistic sense in appearance. The field of durable clothing is quite difficult. However, non-woven fabrics are not easy to loose edges and slip off, can directly participate in the design of the fabric edges, and do not need to iron and seam the seams of the clothing. This is different from woven fabrics and knitted fabrics. It is precisely because of the simple advantages of non-woven garment sewing technology that many scientific researchers and enterprises have the courage to face risks and carry out product development. In recent years, the focus of research has focused on how to improve the drape, abrasion resistance, elasticity, and elastic recovery capabilities of non-woven fabrics to make them suitable for the requirements of durable clothing fabrics. The joint venture of BBAFiberweb and DowChemical has developed a new spunbond elastic non-woven fabric. The fiber is a sheath-core bicomponent fiber, the core layer is an elastomer, and the skin layer is a polymer with good extensibility. The different ratios of the two components make the spunbond non-woven fabrics have very good elasticity, low elastic modulus, high strength and dimensional stability, which makes the spunbond non-woven fabrics durable clothing Provides possibilities. Japan’s Kuraray and domestic companies are jointly researching and developing superfine fiber spunbond non-woven fabrics, using Ex-cevaltm soluble resin and PP, PE, PA, etc. for composite spinning, one component is PP (or PE, PA), and the other One combination is Excevaltm. Exce鄄valtm is soluble in water below 90℃, biodegradable, and can absorb water, and is hydrophilic. After being compounded with PP (or PE, PA), it has thermal adhesion and is very easy to form a network. Processing. This kind of spunbond non-woven fabric has much better water absorption performance than ordinary spunbond fabrics. Although its surface density is lower, its strength is still comparable to traditional spunbond fabrics. It is a good choice for durable clothing. Spunlace non-woven fabric has the characteristics of soft hand feeling, bulky, high moisture absorption, and wide use of fiber raw materials. It is the most suitable non-woven fabric for clothing. Therefore, its application in durable clothing has been studied the most. The US patent reports a durable spunlace non-woven fabric with good abrasion resistance and drapability, not easy to pilling, and good color fastness. When the elongation in the vertical machine direction is 50%, the recovery rate can reach 90 %, and can be washed at least 25 times. The non-woven fabric has good elasticity and is suitable for making shirts and outerwear for daily wear. It has both close-fitting comfort, good mechanical strength and aesthetics. It is an ideal clothing material.