Title:
PRODUCTION OF POLYVINYL ALCOHOL FIBER HAVING HIGH STRENGTH AND HIGH HOT-WATER RESISTANCE
Document Type and Number:
Japanese Patent JP3450912
Kind Code:
B2
Abstract:
PURPOSE: To provide a process for producing a PVA fiber having high strength and high hot-water resistance and free from fray when cut in the direction of the fiber axis of a rubber conjugate material-obtained by using the PVA fiber as reinforcing material.
CONSTITUTION: A spinning stock solution is prepared by dissolving PVA in an organic solvent. A coagulated fiber yarn is obtained by spinning the stock solution into a coagulation bath by wet and dry-type spinning. The coagulated fiber yarn is provided with a spinning oil mainly containing a composition consisting of the two components of A and B shown below and being mixed with dehydration reaction-stimulating catalysts, and further provided with a finishing oil shown below after heat drawing. The spinning oil consists of (A) 5-40wt.% of an ester of an aliphatic alcohol with an aliphatic carboxylic acid and (B) 95-60wt.% of an ethylene oxide and/or propylene oxide adduct to an aliphatic alcohol. The finishing oil consists of an oil containing ≥40wt.% of an ethylene oxide and/or a propylene oxide adduct to an aliphatic amine compound.
Inventors:
Shiro Murakami
Takeshi Kitahara
Takeshi Kitahara
Application Number:
JP26034094A
Publication Date:
September 29, 2003
Filing Date:
October 25, 1994
Export Citation:
Assignee:
Unitika Ltd.
International Classes:
D01F6/14; D01F11/06; D06M11/70; D06M13/02; D06M13/144; D06M13/17; D06M13/224; D06M13/322; D06M13/368; D06M13/372; D06M15/53; D06M101/00; D06M101/16; D06M101/18; D06M101/24; (IPC1-7): D01F11/06; D01F6/14; D06M11/70; D06M13/17; D06M13/224; D06M13/368; D06M15/53
Domestic Patent References:
| JP797716A | ||||
| JP4126829A | ||||
| JP4163311A | ||||
| JP4126830A | ||||
| JP382815A | ||||
| JP5148767A | ||||
| JP475238B1 |