Non-woven-fabrics

It was apparently helpful to add Hg" to the dil HNO3 used to roughen the surface of the animal hair employed in the making of felt which is a non-woven fabric of randomly oriented hairs. 

Glass-fiber tissue or non-woven fabrics are used for decorative purposes on many insulants. They also give improved strength to foam plastics and enhanced sound-absorption characteristics to mineral wools. 

We use the spinning process to make polymer fibers and filaments that can be converted into fabrics and cordage. During fiber spinning, molten polymer is pumped through holes in a plate to form a multiplicity of strands that are rapidly stretched and cooled. The finished product comprising oriented fibers is either wound up on spools or converted directly into a non-woven fabric. 

Non-woven fabrics can be produced very economically, which suits them for many singleuse health and hygiene applications, such as the outer cover and body contacting layers of... 

Polymer scientists and engineers have developed a wide variety of processes by which to convert polypropylene into useable articles. These processes include fiber-spinning, production of melt blown and spun bond non-woven fabrics, film production, blow molding, and injection molding. The following sections describe these processes and the resulting properties of the product as a function of the process. 

Melt-Blown and Spun-Bond Non-Woven Fabrics... 

Another widespread use of polyurethane elastic fibers is in disposable diapers and adult incontinence garments. Elastic strands are incorporated into waistbands and side panels made of non-woven fabrics where they improve fit and reduce leakage. 

Various other disposable products have been developed from poly(HASCL). Using common techniques, fibers and non-woven fabrics have been manufactured. These materials would be very suitable for use in sanitary napkins and diapers [21, 115, 116]. Other typical single-use products include disposable razors and cutlery and were produced from molded poly(HASCL). 

There are several reports on the coating of bone-like hydroxyapatite onto natural polymer substrates. Kawashita et at. [57] reported that carboxymethylated chitin and gellan gum gels, which have carboxyl groups, can form hydroxyapatite on their surfaces in SBF if they are treated with a saturated Ca(OH)2 solution in advance, while curdlan gel, which has no carboxyl group, does not form hydroxyapatite in SBF, even if it is treated with Ca(OH)2 solution. These results support the hypothesis that carboxyl groups induce hydroxyapatite nucleation. Kokubo et at. [58,59] reported that non-woven fabrics of carboxymethylated chitin and alginate fibers also form hydroxyapatite on their surfaces in SBF if they are treated with Ca(OH)2 solution. 

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. 

A textile term denoting a width of cloth as woven in the loom. The meaning has been broadened in the mbber industry to include almost any sheeting such as might be positioned by a web guide, or the mat of fibres later impregnated with latex in the manufacture of non-woven fabrics. See Rubber Webbing. 

PAD ABDOMINAL WHITE 16X12" COVERED W/GAUZE/NON WOVEN FABRIC 144S 6510012717671 PG 57.46 ... 

Naphthyl)ethyl isocyanate, chiral derivatizing reagent, 6 76t 1-Naphthyl-Al-methylcarbamate, 17 84 Napierian absorbance, 23 126 Naples yellow, 14 792 Napping, of staple-fiber non woven fabrics, 17 515... 

Poling kettle, in tin refining, 24 788 Polioencephalomalacia, 10 867 Poliomyelitis vaccine, 5 345t 25 488 Polio virus, 22 10, 11 Polished metals, and object mode perceptions, 7 306t Pohshes, colloids, 7 273t Pohshing, of staple-fiber non woven fabrics, 27 515... 

Spinning systems, wet ring, 11 615-616 Spinning/web formation, for spunbonded non woven fabrics, 17 469-474 Spinodal curves, 20 320-321 Spinodal decomposition, in polymer blends, 20 321, 322... 

Naruse et al. proposed another bioreactor design [22,23], in which porcine hepatocyte spheroids are immobilized on non-woven polyester fabric. This device allows more direct contact between hepatocytes and perfused medium and improves, therefore, the mass transfer capacity. The non-woven fabric module expressed better metabohc and synthetic functions at 24 hours than a hollow fiber module containing spheroids in suspension culture. Longer term results are not yet available and the immunoexclusion properties of this fabric have not been addressed. 

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