Toray Industries, Inc.

Shiro Imai

Masahiro Kimura

Masao Umezawa

Kenkichi Yagi

Teruo Nakamura

Masato Shimada

Junnosuke Nagashima

Toshio Tsubota

Yuriko Yoshida

Toshio Nishikawa

Miyoshi Okamoto

Kenji Tsunashima

Hideyuki Yamauchi

Hiroyoshi Asada

Yasumasa Yamamoto

A method of thermally laminating a substrate with a polyester film characterized in that said film has a melting point of 150-250.degree. C., contains 0.01-1% by weight of diethylene glycol component and not more than 0.8% by weight of cyclic trimers, and has an intrinsic viscosity �.eta.! of not less than 0.7. The film has good formability and physical properties such as impact resistance, which are hitherto not attained, and the film is excellent in adhesiveness and taste characteristics, so that the film is suited as a wrapping material and as an inner liner of containers.

Polyester film for thermal lamination

Dry process for preparing information-bearing fibrous sheets by heat

Optically readable mark recorded cloth and a production process thereof

A polyester film for thermal lamination, comprising:

Polyphenylene sulfone fibers mainly consisting of a structural unit represented by a general formula ##STR1## (x is 0 or 1 or 2) wherein x, the average value of x, is 1.0 to 2.0, and a method for production thereof. These fibers are prepared by modifying polyphenylene sulfide fibers, whose specific surface area and degree of orientation are more than 0.4 m.sup.2 /g and more than 70%, respectively, to polyphenylene sulfone fibers represented by a main constituting unit with organic peroxides. These fibers have excellent heat and chemical resistance.

Method for production of polyphenylene sulfone fibers

Polyphenylene sulfone fibers mainly consisting of a structural unit represented by a general formula ##STR1## (x is 0 or 1 or 2) wherein x, the average value of x, is 1.0 to 2.0, and a method for production thereof. These fibers are prepared by modifying polyphenylene sulfide fibers, whose specific surface area and degree of orientation arr more than 0.4 m.sup.2 /g and more than 70%, respectively, to polyphenylene sulfone fibers represented by a main constituting unit ##STR2## with organic peroxides. These fibers have excellent heat and chemical resistance.

Polyphenylene sulfone fibers and a method for production thereof

Artificial leather and a dyeing method therefor; the leather includes ultrafine polyamide fibers and is particularly a grained artificial leather having bright, deep color, good color fastness to dry cleaning with charged soap, a delicate touch free from any undesirable rubber-like feeling, as well as high durability. A super-entangled fiber base is provided comprising ultrafine polyamide fibers and/or bundles thereof; polyurethane including polyoxyethylene of molecular weight of 500-5,000 is applied. The polyamide ultrafine fibers are dyed with a metal-dye complex and a fixing agent.

Grained artificial leather having good color fastness of ultrafine

Grained artificial leather having good color fastness and dyeing method

Growing community of inventors

Kyoto, Japan

Shiro Imai