Textiles: spinning – twisting – and twining – Apparatus and processes – Elements
Patent
1974-07-05
1976-03-30
Watkins, Donald E.
Textiles: spinning, twisting, and twining
Apparatus and processes
Elements
19 64, 57 34HS, 57 2, 57157TS, 57157F, D02G 102, D02G 322, D02G 334
Patent
active
039465489
ABSTRACT:
A multifilament yarn of improved bulkiness is provided. The yarn is composed of two portions, i.e., a relatively dense portion and a blooming, relatively sparse portion, alternately occurring along the length of the yarn. The relatively dense portion is in a partially twisted state and individual filaments in this portion are irregularly entangled and cohere to a greater extent than in the relatively sparse portion. The relatively dense portion has protruding filament ends on the yarn surface in a larger number than the relative sparse portion.
The yarn is prepared by first passing a multifilament yarn through a high velocity fluid jet nozzle and then subjecting it to a combination of the steps of false twisting and frictional contact.
REFERENCES:
patent: 2077441 (1937-04-01), Taylor et al.
patent: 3001358 (1961-09-01), Mayner
patent: 3043088 (1962-07-01), Breen
patent: 3158982 (1964-12-01), Marshall
patent: 3158983 (1964-12-01), Tlamicha
patent: 3732684 (1973-05-01), Csok et al.
patent: 3831360 (1974-08-01), Horvath
patent: 3857233 (1974-12-01), Cardinal et al.
Fujisawa Yukimasa
Hino Hajime
Sasaki Yoshiyuki
Teijin Limited
Watkins Donald E.
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