Spinnerette for producing hollow trilobal cross-section filament

Details Spinnerette for producing hollow trilobal cross-section filament Spinnerette for producing hollow trilobal cross-section filament

1985-05-13

1987-03-10

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Means providing a shaping orifice

Single inlet, plural shaping orifices

2641771, 425465, D01D 524

Patent

active

046488308

ABSTRACT:
This invention is a trilobal, synthetic fiber, intended for use in carpets, having an axially extending hole in each lobe, the total cross-sectional area of the fiber being about 5 to 12 percent void, said fiber cross-section having a modification ratio of between about 2 to 3, and an arm angle of about 15.degree. to 45.degree., so that a fiber having improved bulk, soil hiding and resiliency is apparent in a carpet having face fiber of said fiber.

REFERENCES:
patent: 3109220 (1963-11-01), McKinney et al.
patent: 3121040 (1964-02-01), Shaw et al.
patent: 3745061 (1973-07-01), Champaneria et al.
patent: 3981948 (1976-09-01), Phillips
patent: 4279053 (1981-07-01), Payne et al.
patent: 4316924 (1982-02-01), Minemura et al.

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