Nonwoven fabrics fabric durability

Media made from woven or nonwoven fabrics coated with a polymeric film, such as Primapor, made by SCAPA Filtration, and Gore-Tex, made by W. L. Gore and Associates, combine the high retentivity charac teristics of a membrane with the strength and durability of a thick filter cloth. These media are used on both continuous and batch filters where excellent filtrate clarity is required. 

In the case of nonwoven fabrics, a reduction in pore size is achieved by compressing the fibres into a more dense structure (loads up to 300decaNm" may be necessary) and, by selection of the appropriate conditions, a more durable (Fig. 3.31) surface can also be obtained through partial fusion of the surface fibres. With woven fabrics, on the other hand, some deformation of the yams may be necessary to achieve the optimum filtration properties. This is particularly graphic in the case of fabrics woven from monofilament yams, as shown in Fig. 3.32 and Fig. 3.33. 

Garments are made by joining several patterned substrates together. These substrates can be various types of woven or nonwoven fabric that are joined together or to accessories that could include linings, buttons, zippers, tapes, and decorative pieces. The quality of the joint or seam in terms of strength, durability, permeability, flexibility, and comfort can have a significant effect on the value of the final product. 

Interlinings, also called interfacing, are generally nonwoven fabrics that add more structure and body to garment components like collars, button plackets, waistbands, and cuffs. Interlinings may be fusible or sew-on. Interlining durability is important... 

Spunbonded Markets Durable Applications. A summary of late 1990s markets for nonwoven fabrics in the United States and western Europe is shown in Figures 11, 12, and 13. Approximately 37% of total global nonwoven production for 2001 was estimated as being spunbonded (1). In North America this represents 550,000 t of spunbonded production with volume growth of 8.5% per year for the period 1996-2001 (1). The principal durable applications center around construction and automotive applications although there are other smaller areas. 

INDA. New Nonwoven Material Made Entirely from Plant-based Materials Wins 2015 INDA Rise Durable Product Award. United States Association of the Nonwoven Fabrics Industry 2015. 

Clothing products, which include articles worn by both nursing staff and patients, have no specific requirements other than comfort and durability. In isolation wards and intensive care units, disposable protective clothing is worn to minimize cross infection. A wide range of designs in various types of nonwoven fabric is available as head coverings for male and female staff. These articles are made from composite fabrics that consist of tissue reinforced with a polyester or PP spunlaid web. SMS and wet-laid are the major nonwoven types used in sterilization wrap, laboratory coats, jackets and coveralls. 

Ex. 4. American Cyanamid supplies 10 Cyanabond textile adhesives which are described as nontoxic, water-based, 30 or 40% solids, prereacted, polyurethane emulsions that provide highly durable bonds when applied to woven, knitted, or nonwoven fabrics. They have an acetic acid-type odor. They may be used on a wide variety of cellulosic and synthetic textile substrates. When applied by established processing techniques they form bonds of cloth-to-cloth and foam-to-fabric that... 

Anantharaniaiah,N., Verenich, S.,andPourdeyhimi,B / Durable Nonwoven Fabrics via Fracturing Bicomponent Islands-in-the-Sea Filaments , Journal of Engineered Fibers and Fabrics, 3, 1-9, 2008. 

Other Durable Applications. Other durable appHcations such as interlinings and coating/laminating substrates do not appear to offer much near-term opportunity for growth for spunbonded fabrics. In interlinings, however, spunlaced nonwovens have received wide acceptance because of the outstanding drape and softness previously unavailable from any other fabric. 

Ruorocarbon treatment generally improves the penetration resistance of porous fabrics, both woven and nonwoven, to liquids and particles. The fluorocarbon reduces die differences between the resistances of 100% cotton and various cotton/polyester blends. Durable press finishes reduce penetration resistance to liquids. Studies of soil releasing treatments are inconclusive. Laundering reduces the effectiveness of finishes diey must be renewed periodically. 

Nonwoven spun These fabrics include spun-bonded, flash-spun, melt-blown, and mechanical nonwoven swirl. They are used in durable and disposable products that include interlining-interfacing (apparel), carpet backing, geotextile, roofing, industrial filtration media, surgical apparel, medical dressing, and diaper. 

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