Process for making producer-colored fibers, yarns, films and rel

Details Process for making producer-colored fibers, yarns, films and rel Process for making producer-colored fibers, yarns, films and rel

1975-10-01

1977-08-30

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Random variegated coloring during molding

By extrusion

260 37NP, 260 37P, 260 37R, 264171, 264211, D01F 102, B01D 4700

Patent

active

040455297

ABSTRACT:
Process for making producer-colored fibers, yarns, films and related products by extruding from a source, such as from an extruder, a flow of polymer to a spinneret placing in the path of flow between the polymer flow and the spinneret a dye solid or pigment solid having a predetermined shaped surface area, and flowing the polymer into contact against the exposed surface of the dye solid or pigment solid and by such contact dissolving at a predetermined rate a predetermined portion of the dye solid or pigment solid into the polymer flow and coloring the polymer flow for subsequent extrusion from the spinneret as colored filaments.

REFERENCES:
patent: T903029 (1972-10-01), Phillips
patent: 2063180 (1936-12-01), Meyer et al.
patent: 3752874 (1973-08-01), Coates
patent: 3817675 (1974-06-01), Maiocco
patent: 3905937 (1975-09-01), Khanna
patent: 3969053 (1976-07-01), Baconnier et al.

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