Textiles: fiber preparation – Working – Drafting
Patent
1996-01-11
1997-06-17
Calvert, John J.
Textiles: fiber preparation
Working
Drafting
19236, 19261, D01H 586
Patent
active
056385803
ABSTRACT:
Worsted grade all-wool of fair quality can be spun on cotton spinning system. Wool top is processed at first passage of cotton drawing frame instead of gill, with cutting and drafting with suitable distance between front and third rollers. Second and back top rollers are removed so that wool sliver which is more uniform and which has a shorter staple length distribution can be processed with roller drafting only. The second to last passage is processed with the same distance between the front and third roller as the first passage and also has the second and back top rollers removed. The sliver is fed through three (3) pairs of the rollers and one pair of aprons of a cotton roving frame, the draft is the same distance as the first passage of drawing process between front and back rollers and uses an engraved middle top roller. Yarn is spun on a cotton ring frame by drafting the fed roving through three pairs of rollers and one pair of aprons. The same draft distance as the first passage of the drawing frame between the front and back rollers is set on the spinning frame. An engraved middle top roller is again used. Worsted grade all wool yarn can be produced utilizing commercially running cotton system with minimum modification.
REFERENCES:
patent: 207626 (1878-09-01), Sargent
patent: 2037836 (1936-04-01), Truslow
patent: 3105998 (1963-10-01), Raboisson
patent: 3609836 (1971-10-01), Morrison et al.
Bloom Leonard
Calvert John J.
Hanol Spinning Co., Ltd.
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