Mitsubishi Rayon Company, Limited

Takashi Goto

Kenzo Kosaka

Kunio Shibata

Eizi Takahashi

Shin Morioka

Hiroshi Kitagawa

Kiyoshi Adachi

Tsutomu Okaya

Toshiyuki Nanbu

Kasumi Sato

Goro Ozawa

Akio Ishikawa

A filamentary strand of a thermoplastic nature is ejected from an ejection nozzle being entrained on a heated medium flow into a stuffing chamber structured on a circulating endless surface moving at a speed slower than the ejection speed and the stuffed filamentary strand is transported, being carried by the endless surface, towards a downstream outlet of the stuffing room in such a way that the yarn mass is gradually compressed during displacement toward the downstream outlet of said stuffing room. During the transportation either a free or a positive cooling is employed. The resultant filamentary strand is provided with random, bulky and round three-dimensional crimps.

Crimping apparatus

A synthetic multifilament textured yarn provided with randomly formed compact portions and bulky portions formed between two adjacent compact portions. The compact portions are provided with a certain twist and the bulky portions consist of a plurality of individual filaments, each having random crimps. Each of said individual filaments are separated from each other, and the twist direction of each of said bulky portions is opposite from that of two adjacent compact portions. This textured yarn can be produced by a conventional false-twist operation under a processing temperature between a softening point and a melting point of the material yarn.

Textured synthetic multifilament yarn having alternate grouped S and Z

A method for manufacturing a textured synthetic multifilament yarn having alternately grouped S and Z twists. The textured yarn is produced by a conventional false-twist operation under a processing temperature between a softening point and a melting point of the material yarn in a first step and then the above-mentioned yarn is subjected to a process for separating individual filaments in each of the compact portions under tension.

Method for manufacturing a textured synthetic multifilament yarn having

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Nagoya, Japan

Takashi Goto