Toray Industries, Inc.

Masato Shimada

Teruo Nakamura

Kenkichi Yagi

Shiro Imai

Junnosuke Nagashima

Yuriko Yoshida

Toshio Nishikawa

Shunroku Tohyama

Jiro Amano

Kazuya Hayashi

Kouzou Takano

Yoshihiro Fujii

A waterproof fabric having a high moisture permeability and having an ultra-microporous continuous polymer coating having an average pore diameter in the range of between 50 .ANG. and 0.2.mu., said polymer having a monomer unit containing at least one acid radical selected from carboxyl group, sulfonic acid group, and alkali metal salts thereof.

Waterproof fabric having high moisture permeability and method of making

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

A process for treating a fibrous structure is provided. The fibrous structure comprises at least two components at least one of which is a polyester containing an SO.sub.3 M group wherein M represents hydrogen or an alkali metal. The process is characterized in that the fibrous structure is treated with an agent which deteriorates the polyester prior to the alkali treatment for the removal of the polyester component.

Process for treating fibrous structure

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Otsu, Japan

Masato Shimada