Apparatus for producing coated single twist glass yarns

Details Apparatus for producing coated single twist glass yarns Apparatus for producing coated single twist glass yarns

1989-04-05

1990-05-22

Lindsay, Robert L.

Glass manufacturing

Processes

With shaping of particulate material and subsequent fusing...

65 2, 65 343, 65 344, 57332, 57336, 57338, C03C 2502, D10H 124, C03B 3702

Patent

active

049274457

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; a device such as a rotating spindle for drawing a plurality of glass fibers from the spinneret; at least one coating applicator for applying the sizing coating to the glass fibers; a guide for gathering the coated fibers into a yarn; a device for imparting a single twist to the coated yarn, such as a strap spindle device and an irradiation apparatus for curing the sizing coating wherein the coating is crosslinked and/or polymerized.

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