Process and apparatus for producing coated single twist glass ya

Details Process and apparatus for producing coated single twist glass ya Process and apparatus for producing coated single twist glass ya

1987-12-02

1989-08-01

Lindsay, Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

57249, 57250, 57286, 65 343, 65 111, C03B 3710, C03C 2502

Patent

active

048530212

ABSTRACT:
A process for producing coated, single twist glass yarns which comprises drawing a plurality of fibers formed from fibers of molten glass, applying to the fibers a sizing comprising a thermoplastic, thermosetting or photosetting composition, gathering the coated fibers into a yarn, imparting a continuous rotative twisting movement to the coated yarn and curing the coated yarn so as to polymerize and/or crosslink the sizing coating. An apparatus for performing this process comprises a spinneret having a plurality of nozzles or orifices from which fibers of molten glass are discharged; means for drawing a plurality of glass fibers from the spinneret; at least one coating applicator for applying the sizing coating to the glass fibers; guide means for gathering the coated fibers into a yarn; means for imparting a single twist to the coated yarn, such as a strap spindle device and means for curing the sizing coating wherein the coating is crosslinked and/or polymerized.

REFERENCES:
patent: 3425208 (1969-02-01), Shippee et al.
patent: 3496717 (1970-02-01), Costello et al.
patent: 3918947 (1975-11-01), Maaghul et al.
patent: 4339915 (1982-08-01), Dammann et al.
patent: 4370853 (1983-02-01), Bauer et al.
patent: 4377932 (1983-03-01), Dammann et al.
patent: 4414803 (1983-11-01), Dammann et al.
patent: 4424664 (1984-01-01), Bauer et al.

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