Spinnerette

Details Spinnerette Spinnerette

1979-09-05

1981-02-03

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Means providing a shaping orifice

Single inlet, plural shaping orifices

264176F, 425 72S, A01J 2100

Patent

active

042485819

ABSTRACT:
A spinnerette (60, 70, 80) is provided for use in a process in which one or more ends of individual filaments are extruded from a plurality of orifices (61, 71, 81) of the spinnerette (60, 70, 80). The orifices of each end are arranged in a pattern which bounds a predetermined area of the spinnerette. The pattern consists of at least 5 substantially parallel rows, the orifices being equispaced within a given row for substantially all of the rows. The perpendicular distance between rows going from one side of the pattern to the other on an average progressively increases per row by a percentage, preferably about 1 to 10 percent, of the orifice spacing on the row closest to a line parallel to the rows and bisecting the pattern.

REFERENCES:
patent: 2273105 (1942-02-01), Heckert
patent: 3100675 (1963-08-01), Westerhuis et al.
patent: 3113012 (1964-01-01), Kilian
patent: 3135811 (1964-06-01), Barnett et al.
patent: 3280424 (1966-10-01), Heijnis
patent: 3293696 (1966-12-01), Bruni
patent: 3335210 (1967-08-01), Vinicki
patent: 3487142 (1969-12-01), Johnson et al.
patent: 3508390 (1970-04-01), Bagnall et al.
patent: 3936253 (1976-02-01), Fisher et al.
patent: 4153409 (1979-05-01), Capps et al.
"Man-Made Fibers"-Manufacture, Encycl. of Polymer Sci. & Tech., vol. 8, p. 376, (1968).

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