Rules for polyester filament yarns.
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Rules for polyester filament yarns.

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Published by International Bureau for the Standardisation of Man-Made Fibres in [Basle, Switzerland] .
Written in English

Book details:

LC ClassificationsMLCS 84/00174 (T)
The Physical Object
Pagination53 p. : ill. ; 21 cm.
Number of Pages53
ID Numbers
Open LibraryOL2909156M
LC Control Number84139462

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Filament yarns are either flat or textured. In flat-filament yarns, each filament is almost perfectly straight, so that it lies flat and smooth in the yarn. They tend to be the most compact and smooth of all types of yarns (Fig. ).Such yarns will be preferred in making high-strength high-modulus surgical sutures, hernia repair meshes and other products in which strength and dimensional. Polyester yarns used for membrane fabrics are not pigmented and, therefore, are sensitive to UV radiation and light. In some cases where polyester fabrics are not well protected against water by a coating, wicking may occur. The humidity itself does not attack the yarn, but it transports risky substances into the material. Filament Yarns Filament yarns are manufactured from PET polyester strands grouped together with the form monofilament – made from untwisted strand or multifilament – made from group of twisted polyester strands. The twists and direction of depends on end use. There are many different types of filament yarns. A false twist textured yarn is a continuous filament yarn that has been processed to introduce crimps, coils, loops and other fine distortions along the yarn's length. These distortions give synthetic yarns such as nylon, polyester and polypropylene improved properties such as stretch, bulk, improved thermal insulation and an appearance similar.

  Filament yarns are created by taking the one polyester filaments, grouping them along then twisting or air-entangling them to create them possible. A monofilament yarn has only one, single polyester. Types of filament yarn The types of filament yarns is as numerous as that of staple yarns. POLYESTER FILAMENT YARNS. Polyester is a category of Polymers that mainly comprises of Polyethylene Terephthalate (PET). Polyester is a synthetic polymer made from PTA and MEG. Polyester yarn is made by direct spinning of PTA & MEG. It also made by spinning PET Chips which is also a bi product made from PTA & MEG. Textile - Textile - Conversion to yarn: Because filaments, such as silk and the synthetic fibres, have extreme length, they can be made into yarn without the spinning operation necessary for the shorter staple fibres. When grouped together in a loose, continuous rope without twist, synthetic filaments are called tow. Filaments may be loosely twisted together to form yarns of a specified thickness.   CEOα™ – it is a highly water absorptive polyester filament yarn and textile; Eastman Chemical Company. Eastman Chemical Company is one of the largest advanced materials and specialty additives producer in the US as well as the world. The company is headquartered in Kingsport, Tennessee, U.S. in , the company recorded a revenue of USD 9.

Synthetic filamentary yarn comprised of polyethylene terephthalate filaments which are first treated with a liquid composition consisting essentially of refined coconut oil, about 10 to 20 weight percent of said composition of a stearic acid ester of a branched chain alcohol having carbon atoms, ethoxylated tallow amine, ethoxylated lauryl alcohol, sodium salt of alkylarylsulfonate. Taught is a method of sizing polyester yarn for weaving comprising the steps of applying thereto a latex having an acid pH and of a free radical initiated vinyl polymer having a weight average molecular weight of from about , to about 2,,, said polymer in dried film form being hydrophobic and not redispersible in a solution at a pH of from about 2 to 7 but redispersible by an. The key use for polyester staple fibre and filament yarns is in textiles where PSF is spun into yarn then woven into fabric for apparel. Common lengths are 38 mm or 40 mm. It can also be used as stuffing for toys and pillows and as insulation and wadding for bedding and furniture. This grade is called hollow conjugate fibre, or fibre-fill.   New labour rules to hit textile EOUs. The government is considering a ban on inter-unit job work facility for export-oriented units using polyester filament yarn as .