Teijin Limited

Teijin Seiki Co., Ltd.

Masaaki Yanagihara

Shunzo Naito

Fumio Tanae

Katsutoshi Taniguchi

Hiroyuki Nagai

Kenji Kawakami

Akira Miyamoto

Masakazu Fujita

Hiroyuki Osaka

Yoshiki Shirakawa

Muneaki Awata

A polyester false-twist textured yarn, useful as a yarn for woven or knitted fabrics having excellent water-absorbing and quick drying properties, satisfies all of the requirements (1) to (3) shown below:

Polyester false-twist yarn and method of manufacturing the yarn

A method for rethreading a yarn during false twist texturing of the yarn includes setting the temperature of a heater body outside a range having upper and lower limits so that if melted yarn adheres to the heater, the yarn vaporizes quickly if the temperature is above the upper limit or is easily removed by rethreading the yarn if the temperature is below the lower limit. The heater body has a total length between 0.8 and 1.2 m, the heater body and heating member divided into two pieces from upstream side to downstream side of the heat treating apparatus in ratio of length between 1:3 and 1: 1:5. The divided upstream heating member (12) is able to heat the upstream heater body (11) at a temperature higher than 370.degree. C., and the downstream heating member (22) is to heat the downstream heater body (21) at a temperature of between 200.degree. and 320.degree. C. or higher than 370.degree. C. The upstream heater body has yarn guides (15) disposed at a longitudinal pitch of at most 30 mm, and the downstream heater body has yarn guides ( 24) disposed at a longitudinal pitch between 80 and 120 mm.

Method for heat treating a synthetic yarn during false-twist texturing

A heater body has a total length between 0.8 and 1.2 m, the heater body and heating member are divided into two pieces from upstream side to downstream side of the heat treating apparatus in ratio of length between 1:3 and 1:1.5, the divided upstream heating member (12) is able to heat the upstream heater body (11) at a temperature higher than 370.degree. C., and the downstream heating member (22) is to heat the downstream heater body (21) at a temperature of between 200.degree. and 320.degree. C. or higher than 370.degree. C., the upstream heater body has yarn guides (15) disposed at a longitudinal pitch of at most 30 mm, and the downstream heater body has yarn guides (24) disposed at a longitudinal pitch between 80 and 120 mm.

Apparatus for heat treating a synthetic yarn during false-twist texturing

Level-dyeable mix-spun false-twisted yarn

Worsted yarn-like false-twisted yarn

Growing community of inventors

Matsuyama, Japan

Masaaki Yanagihara