Sheath-core yarn for severe thermal protecting fabrics and metho

Details Sheath-core yarn for severe thermal protecting fabrics and metho Sheath-core yarn for severe thermal protecting fabrics and metho

1980-06-19

1983-05-03

Petrakes, John

Textiles: spinning, twisting, and twining

Strand structure

Covered or wrapped

57210, 57904, 87 6, D02G 318, D02G 336, D02G 344

Patent

active

043816398

ABSTRACT:
A sheath-core yarn and methods of preparing it are disclosed. A sheath of aramid fibers surrounds a continuous filament core composed of an amorphous silica product containing at least 96% silica and having the thermal performance of a refractory material. The yarn is useful in woven or knitted safety garments which must provide protection under such severe conditions as splattering molten steel.

REFERENCES:
patent: 3572397 (1971-03-01), Austin
patent: 3729920 (1973-05-01), Sayers et al.
patent: 3844195 (1974-10-01), Rhodes et al.
patent: 3913309 (1975-10-01), Chiarotto
patent: 3952496 (1976-04-01), Nagel et al.
patent: 4015038 (1977-03-01), Romanski et al.
patent: 4074512 (1978-02-01), Matt
patent: 4159618 (1979-07-01), Sokaris
patent: 4202382 (1980-05-01), Westhead

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