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Plastic drawing, sometimes referred to as cold drawing, is the same process as used on metal bars, applied to plastics. [8] Plastic drawing is primarily used in manufacturing plastic fibers. The process was discovered by Julian W. Hill in 1930 while trying to make fibers from an early polyester. [9]
Spinning is a twisting technique to form yarn from fibers.The fiber intended is drawn out, twisted, and wound onto a bobbin.A few popular fibers that are spun into yarn other than cotton, which is the most popular, are viscose (the most common form of rayon), animal fibers such as wool, and synthetic polyester. [1]
In textile production, carding is a mechanical process that disentangles, cleans and intermixes fibres to produce a continuous web or sliver suitable for subsequent processing. [1] This is achieved by passing the fibres between differentially moving surfaces covered with "card clothing", a firm flexible material embedded with metal pins.
The direct spinning process avoids the stage of solid polymer pellets. The polymer melt is produced from the raw materials, and then from the polymer finisher directly pumped to the spinning mill. Direct spinning is mainly applied during production of polyester fibers and filaments and is dedicated to high production capacity (>100 ton/day).
The process here is similar to that found in one of Arkwrights Water frames, though the size of the ring, spindle and traveller are predictably larger. Alternatively a 'twiner' is used: this is a modified spinning mule and is mainly consigned to the doubling of warp thread. [ 10 ]
Spinning mills in Ancoats, Manchester, England – representation of a mill-dominated townscape. A cotton mill is a building that houses spinning or weaving machinery for the production of yarn or cloth from cotton, [1] an important product during the Industrial Revolution in the development of the factory system.
Cotton-spinning machinery is machines which process (or spin) prepared cotton roving into workable yarn or thread. [1] Such machinery can be dated back centuries. During the 18th and 19th centuries, as part of the Industrial Revolution cotton-spinning machinery was developed to bring mass production to the cotton industry.
The frame utilised the draw rollers invented by Lewis Paul to stretch, or attenuate, the yarn. The roller spinning process starts with a thick 'string' of loose fibres called a roving, which is passed between three pairs of rollers, each pair rotating slightly faster than the previous one. In this way it is reduced in thickness and increased in ...