Ink occlusion material for writing utensils

Details Ink occlusion material for writing utensils Ink occlusion material for writing utensils

1989-07-07

1990-11-20

Hail, III, Joseph J.

Textiles: spinning, twisting, and twining

Strand structure

Staple fiber blends

57255, 401199, D02G 304, D02G 340

Patent

active

049708546

ABSTRACT:
The ink occlusion material for writing utensils according to the present invention comprises a fiber bundle of a mixture of an acrylic synthetic fiber and at least one hydrophobic fiber selected from the group consisting of polyester fibers and polypropylene fibers in a weight ratio of 20 to 70: 80 to 30. The two fibers are drawn so as to show a sea-island form in the cross section of said fiber bundle and spot-adhered by the partial melt-adhesion of the acrylic synthetic fiber and the fiber bundle is twisted at a rate of 1 to 30 T/M.

REFERENCES:
patent: 3558392 (1971-01-01), Goodenow
patent: 4402178 (1983-09-01), Negishi et al.
patent: 4517715 (1985-05-01), Yoshida et al.
patent: 4523428 (1985-06-01), Negishi et al.
patent: 4729215 (1988-03-01), Sato et al.

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