Multilobal polyester yarn

Details Multilobal polyester yarn Multilobal polyester yarn

1975-11-11

1977-08-16

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Elements

57157TS, 260 75R, 428397, D02G 302, D02G 102

Patent

active

040416895

ABSTRACT:
Draw-false-twist texturable polyester yarns are provided which have filaments having 6-10 essentially symmetric lobes of equal length equispaced around the central axis of the filament, a modification ratio of from 1.17 to 1.85 and a denier per filament between 3.8 R.sub.o and a maximum value which is a function of the modification ratio, the number of lobes and the factor R.sub.o which is a nominal draw ratio. Less than 12% of the draw-false-twist textured filaments have flattened cross-sectional peripheries greater than 10 microns in length.

REFERENCES:
patent: 2939201 (1960-06-01), Holland
patent: 2959839 (1960-11-01), Craig
patent: 3156607 (1964-11-01), Strachan
patent: 3216186 (1965-11-01), Opfell
patent: 3287888 (1966-11-01), Chidgey
patent: 3425893 (1969-02-01), Sims
patent: 3508390 (1970-04-01), Bagnall et al.
patent: 3691749 (1972-09-01), McKay

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