Fabrics woven fabrics

Wound dressings Woundhealing Woven fabrics Woven geotextile... 

Standard Test Methods for Tire Yarns, Cords, and Woven Fabrics. ASTM standard D885M-94 includes test methods for characterizing tire cord twist, break strength, elongation at break, modulus, tenacity, work-to-break, toughness, stiffness, growth, and dip pickup for industrial filament yams made from organic base fibers, cords twisted from such yams, and fabrics woven from these cords that are produced specifically for use in the manufacture of pneumatic tires. These test methods apply to nylon, polyester, rayon, and aramid yams, tire cords, and woven fabrics. 

Poly(vinyl acetate) emulsions are used to prime-coat fabrics to improve the adhesion of subsequent coatings or to make them adhere better to plastic film. Plasticized emulsions are appHed, generally by roUer-coating, to the backs of finished mgs and carpets to bind the tufts in place and to impart stiffness and hand. For upholstery fabrics woven from colored yams, PVAc emulsions may be used to bind the tufts of pile fabrics or to prevent sHppage of synthetic yams. 

Filter-medium selection embraces many types of construction fabrics of woven fibers, felts, and nonwoven fibers, porous or sintered solids, polymer membranes, or particulate solids in the form of a permeable bed. Media of all types are available in a wide choice of materials. 

Fabrics of Woven Fibers For cake filtratiou these fabrics are the most common type of medium. A wide variety of materials are available some popular examples are listed in Table 18-10, with ratings for chemical and temperature resistance. In addition to the mate-ri of the fibers, a number of construction characteristics describe the filter cloth (1) weave, (2) style number, (3) weight, (4) count, (5) ply, and (6) yarn number. Of the many types of weaves available, only four are extensively used as filter media plain (square) weave, twill, chain weave, and satin. 

Industrial filtration systems may be of many types. The most common type is the baghouse shown in Fig. 29-3. The filter bags are fabricated from woven material, with the material and weave selected to fit the specific application. Cotton and synthetic fabrics are used for relatively low temperatures, and glass cloth fabrics can be used for elevated temperatures, up to 290 C. 

Fabric Any woven, knitted, felted, bonded, knotted, etc., textile material. There are woven and nonwoven fabrics. 

A fabric made by uniting a mass of staple fibres into a continuous sheet by using the adhesive properties of a bonding agent, usually rubber latex, either natural or synthetic. In textile technology the term is applied to fabrics which are not woven, such as felted fabrics. Non-woven fabrics are now being termed bonded fabrics. 

Twintex T PP is a fabric woven with commingled E-glass and polypropylene rovings. It is suitable for pressure moulding. Consolidation is accomplished by heating (180-230°C) under pressure. 

A variety of organic monomers may be polymerized in a plasma and deposited onto substrates 41,42. This process was investigated for a variety of flurocarbon monomers and substrates including polymer films and fabrics of woven wool fibers. Spectra were obtained using a Varian IEE-15 spectrometer. Typical electron line widths encountered from these... 

Cellulose acetate forms strong, transparent films and has enjoyed many applications such as photographic film, transparent tape, and blister packaging. It can also be spun into satin fibers. Satin not only means a somewhat shiny fabric woven from cellulose acetate fiber, but also refers to something with a soft texture, which the acetate fiber has. 

Woven Fabrics Fabrics that are created by weaving or knitting. In some cases this requires converting basic fibers into yam prior to weaving. 

Internal Structure of Silk and Linen. Triangular-shaped silk filaments (called brins and composed of the protein fibroin) are embedded in a second protein (sericin) to form the bave unit. Microscopic examination of fabrics woven with the silk bave unit and subsequently cleaned of sericin reveals paired brin filaments. Fibroin contains 16 amino acids, and more than 80 of the polymer is composed of glycine, alanine, and serine only (6). Their small side groups allow chains of these amino acids to pack together closely to form the crystalline portions of the fiber. The bulkier amino acids, such as tyrosine, disrupt crystal order and produce the amorphous areas of the internal structure of the fiber. 

Nature of textile Textile construction yarn (staple or filament), fabric (knit, woven or nonwoven)... 

ASTM D 3107 Standard Test Methods for Stretch Properties of Fabrics Woven from Stretch Yarns... 

These materials are generally used as replacements for lower cost antimony trioxide in latex compounds used for textile fabrics, non-wovens, adhesives, and various other applications. Unlike antimony trioxide, Nyacol materials will not settle out, will not clog spray guns, will more easily impregnate fabrics and paper and will contribute no whitening effect. Handling of dusty powders is eliminated. In many instances the aqueous colloidal antimony pentoxide is about twice as effective as trioxide. 

Fluorochemical products are expensive and have a tendency to provide a harsh hand on the treated fabric whether woven or nonwoven. NORANE 110 repellent reduces the amount of fluorochemical needed while at the same time softening the substrate, improving drape and sewability of the fabric. NORANE 110 repellent provides spray and impact penetration resistance. NORANE 110 repellent does not contribute odors to Co-60 sterilized medical fabrics. 

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. 

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