Worsted systems

The multiplicity of nylon blends, processing systems, and uses requires a large variety of staple types. Tex per filament may be 0.1—2 (1—20 den), the cross section may be round or modified, the luster may be bright or dull, crimp may be present or absent, and the fiber may be heat-set or not, depending on its use. The staple length is about 4 cm for cotton system processing, 5—7 cm for the woolen system, 8—10 cm for the worsted system, and about 18—20 cm for carpet staple. 

ASTM D 2645 95—Yarns spun on (he cotton or worsted systems. 

The conversion of raw wool into a textile fabric or garment involves a long series of separate processes. There are two main processing systems, worsted and woolen. A significant volume of wool is also processed on the semiworsted system, for carpet use. Some wool is processed on the short-staple (cotton) system. Details of the principal stages in the woolen and worsted systems and discussion of more recent developments can be found elsewhere (69,70). 

Chem. Descrip. Fatty esters and polyalkylene derivs. in mineral oil Uses Lubricant for woolen and worsted systems Features High performance oil/syn. lubricant Properties Liq. 100% act. 

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