PRODUCTION OF THERMALLY FUSIBLE LOW-SHRINKAGE CONJUGATE SPUN YARN

Title:

PRODUCTION OF THERMALLY FUSIBLE LOW-SHRINKAGE CONJUGATE SPUN YARN

Document Type and Number:

Japanese Patent JPS584820

Kind Code:

A

Abstract:

PURPOSE: A specific ethylene-vinyl alcohol copolymer and polyester are subjected to conjugate spinning, drawn in a moist heat bath and shrinked by heat treatment under relay to produce heat-fusible conjugate fiber with low shrinkage.

CONSTITUTION: An ethylene-vinyl alcohol copolymer that has the vinyl acetate segment of more than 98mol% saponification degree and an ethylene molar content of 30W70%, and a polyethylene terephthalate polyester are extruded at 170W220°C and 270W310°C respectively into the nozzle pack for conjugate spinning heated at 280W300°C to form conjugate fiber so that the ethylene-vinyl alcohol copolymer covers at least a part of the fiber surface. Then, the resultant fiber is drawn in a moist heat bath of lower than 80°C and heat treated under relax in a moist heat bath whose temperature is higher than the former moist heat bath, ranging from 80W95°C.

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Inventors:

ASANO MASAJI
OKADA HIROMASA
NOGUCHI YOSHISHIGE

Application Number:

JP10082981A

Publication Date:

January 12, 1983

Filing Date:

June 26, 1981

Export Citation:

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Assignee:

KURARAY CO

International Classes:

D01F8/10; D01F8/14; (IPC1-7): D01F8/10; D01F8/14

Domestic Patent References:

JPS5626008A

1981-03-13

Attorney, Agent or Firm:

Honda Ken

Next Patent: PRODUCTION OF CALCIUM PHOSPHATE FIBER