Reinforcing composite yarn and production therefor

Details Reinforcing composite yarn and production therefor Reinforcing composite yarn and production therefor

2008-07-08

2008-07-08

Hurley, Shaun R. (Department: 3765)

Textiles: spinning, twisting, and twining

Strand structure

Covered or wrapped

C057S236000

Reexamination Certificate

active

07395654

ABSTRACT:
A composite yarn having a high reinforcing effect on a matrix material to be reinforced is a paralleled yarn of at least one substantially non-twisted multifilament yarn having a tensile strength of 13 cN/dtex or more and an initial modulus of 300 cN/dtex or more with at least one substantially non-twisted staple fiber yarn having a staple fiber fraction (1) having a fiber length of 1.5 times or more the average fiber length of the staple fibers and another fraction (2) having a fiber length of 0.5 time or less the average fiber length, in which a portion of the staple fibers in the staple fiber yarn winds around the periphery of the paralleled composite yarn to thereby bind the multifilament yarn and the staple fiber yarn substantially into a composite yarn without twisting the composite yarn.

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Kathryn L. Hatch, Textile Science, 1993 West Publishing Company, 1st edition, pp. 252-260, 302.

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