Process for reinforced yarn with glass fiber core

Details Process for reinforced yarn with glass fiber core Process for reinforced yarn with glass fiber core

1983-08-26

1985-09-17

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Covering or wrapping

57 14, 57229, 57240, 57315, D02G 316, D02G 328

Patent

active

045412316

ABSTRACT:
A unique process for producing torque-free or balanced yarns of staple fibers with glass filament cores is disclosed. Staple fiber roving is fed through a drafting system. Glass filament is fed into the center of the staple fiber just prior to entering the front rolls of the drafting system. Sufficient twist is applied to the fiber around the glass filament using the ring spinning process and two or more of these yarns are ply twisted in the opposite direction of the spinning direction to firmly lock the staple fiber to the glass filament. The twist multiplier range for spinning is between 3.0 to 3.5 and for plying is betwen 3.5 and 4.5. Cotton fiber is the principle fiber used with a glass filament core. The resulting yarn can be tied by knotting onto existing loom beam ends when breaks occur during weaving without shearing of the yarns.

REFERENCES:
patent: 2859583 (1958-11-01), Parker
patent: 3029953 (1963-06-01), Blackstock
patent: 3375655 (1968-04-01), Swales
patent: 3729920 (1973-05-01), Sayers et al.
patent: 3739566 (1973-06-01), Smith

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