Textiles: fiber preparation – Stapilizing – Tension breaking
Patent
1977-11-23
1980-03-11
Rimrodt, Louis
Textiles: fiber preparation
Stapilizing
Tension breaking
19244, D01G 108, D01H 586
Patent
active
041920414
ABSTRACT:
A method for converting a multifilament bundle of a synthetic material into a sliver and an apparatus for effecting the method. The apparatus comprises: a feed roller device for feeding the bundle; a draft roller device consisting of a pair of draft rollers, the peripheral speed of which draft roller device is higher than that of the feed roller device, for stretch breaking the filaments in the bundle between the feed roller device and the draft roller device; and an apron belt, belted between one roller of the draft roller device and the intermediate portion of the feed roller device and the draft roller device, which is wound around the other draft roller. The broken filaments are smoothed between the apron belt and the other draft roller so that the evenness of the sliver thickness is improved and the uniformity in quality of the spun yarn obtained from the sliver is also improved. Accordingly, the method and apparatus has advantages when a multifilament bundle of a synthetic material is converted into a sliver at a high speed of not less than 200 m/min.
REFERENCES:
patent: 2641804 (1953-06-01), Klein
patent: 2672654 (1954-03-01), Hare
patent: 2797444 (1957-07-01), Takagi et al.
patent: 3060669 (1962-10-01), Kingsbury
patent: 3789461 (1974-02-01), Nakano et al.
Harada Kiyoshi
Sasaki Yoshiyuki
Rimrodt Louis
Teijin Limited
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