Fabrics having salt-and-pepper patterns and crimped filament yar

Details Fabrics having salt-and-pepper patterns and crimped filament yar Fabrics having salt-and-pepper patterns and crimped filament yar

1980-03-18

1982-10-26

Watkins, Donald

Textiles: spinning, twisting, and twining

Strand structure

Alternately twisted

57208, 57284, 57286, 139426TW, D02G 326, D02G 334, D02G 340

Patent

active

043554997

ABSTRACT:
A yarn having a number of filaments is passed through between intercrossing work surfaces of two intercrossing endless belts which run in pressing engagement with each other. By suitably selecting the intercrossing angle of the belts, tension acting on the yarn and heater temperature, a crimped filament yarn is prepared having S-twist and Z-twist portions distributed in alternation along the length of the filament yarn. The filaments are tightly engaged with each other in the S-twist (or Z-twist) portions while being separated from one another in the Z-twist (or S-twist) portions. A fabic using such crimped yarn is dyed to cause the tightly bound portions to appear in a dark shade of color and the loosely bound portions in a light shade, thereby producing a salt-and-pepper pattern.

REFERENCES:
patent: 3978647 (1976-09-01), Kosaka et al.
patent: 4033103 (1977-07-01), Vukoje
patent: 4084622 (1978-04-01), Nakagawa et al.
patent: 4103481 (1978-08-01), Vukoje

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