Method of making a slubby strand

Details Method of making a slubby strand Method of making a slubby strand

1975-01-31

1976-05-11

Lindsay, Jr., Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

28 7211, 57140G, 57162, 65 4A, 65 11W, 156158, 156431, 427174, C03B 3702

Patent

active

039559521

ABSTRACT:
A method of forming a slubby glass fiber strand is disclosed which involves passing a plurality of glass fibers as they are drawn from a bushing in parallel over a working surface at a first velocity and directing a second plurality of glass fibers drawn from the same bushing or an adjacent bushing at a second velocity higher than the first into the first plurality of glass fibers while they are passing over the working surface. Both of the groups of glass fibers are wet at the point of contact with each other and the subsequent entanglement of the fibers causes a substantial bulking of the yarn. Further, binder may be added as the bulked yarn is gathered into a single strand. The resulting strand is passed through a gathering shoe to allow strip back at the surface of the bulked yarn so that a plurality of slubs are produced on the surface of the yarn.

REFERENCES:
patent: 2939761 (1960-06-01), Stein
patent: 3410077 (1968-11-01), Marzocchi et al.
patent: 3495393 (1970-02-01), Wada et al.
patent: 3685268 (1972-08-01), Seguin

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