Woolen systems

Wool-acrylic blends Wool combing Wool-cotton blends Wool dyes Woolen 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. 

Staple is used directly in the manufacturing of nonwoven fabrics (qv) (127) and spun into yam through the cotton, worsted, and woolen systems in 100% form or in blends with other synthetic or natural fibers (128,129). 

The efficiency of the vegetable matter (burr and seeds) removal mechanism depends on the carefiil maintenance of settings and speeds and the level of drying of the scouted wool (86). The butt wastes contain wool fiber. Butt, together with fiber which has dropped beneath the card, may be carbonized and used in the woolen system. 

Processes 8 and 9 again employ giUs. The purpose is to shuffle the fibers in the combed sUvet to produce a random positional distribution, and thus the most even sUvet possible. The second finisher gilling wiU also incorporate either a baU winding head, or a press that condenses top that has been deUveted into a can. This latter product is caUed bump top. Both baU and bump facUities ate usuaUy necessary to satisfy customers differing needs. Bumps or baUs wUl then be further pressed into bales for shipment. Combed wool destined for processing on the woolen system may be sucked in short lengths from the comb to form broken top. 

Excellent lubricant for fibers spun on woolen system, low fiber to fiber lubrication with moderate scroop high cohe-sion--anionic. 

Uses Wax for sizing operations cohesive agent for short staple fiber in woolen systems... 

The early nineteenth century saw the beginning of factory production systems, particularly in the cotton mills of Lancashire and woolen mills in Yorkshire. Accidents arising from the use or misuse of steam plant, particularly boilers, became common and led not only to damage and destruction to property but also to death and bodily injury to persons in or about the scene of the explosions. 

Staple sta-p9l [ME, fr. ME estaple, fr. MD stapel emporium] (14c) n. Natural fibers or cut lengths from filaments. The staple length of natural fibers varies from less than 1 in. as with some cotton fibers to several feet for some hard fibers. Manufactured staple fibers are cut to a definite length, from 8 in. down to about 1-0.5 in. (occasionally down to 1 in.), so that they can be processed on cotton, woolen, or worsted yarn spinning systems. The term staple (fiber) is used in the textile industry to distinguish natural or cut length manufactured fibers from filament. 

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). 

In liquid systems, equations exist that enable the calculation of diffusion coefficients via the knowledge of the course of dynamic viscosity. As an example. Me Manamay and Woolen stated for the diffiisivity of CO2 in some organic liquids [48] ... 

Friction spurning is a variation of the open-end spinning system and often referred to as the DREF system. In this system, one or more slivers are fed onto a rapidly rotating card drum which opens the si iver to form single fibers. The separated single fibers are blown from the card dram by a stream of air onto the junction of two parallel perforated drams turning in the same direction. The rotating perforated drams under suction cause the fibers to be compressed and twist around aie another to form a uniform yam which is continuously removed onto a spool. The resultant yarns are bulky and have properties similar to woolen yarns. 

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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