Teijin Limited

Shigenobu Kobayashi

Yoshiyuki Sasaki

Norihiro Minemura

Tetsuo Okamoto

Togi Suzuki

Katsuyuki Kasaoka

Shinji Ohwaki

Setsuo Yamada

Fumiki Takabayashi

Kaoru Asada

Ichiro Okamoto

Tomio Matsubara

Hiroya Murase

Tsuguo Fujiwara

Hollow fiber fabric and process for producing the same

A high heat-resistant synthetic fiber material containing, for example, aramid, PEEK, or PEN fibers, that can be dyed uniformly at a high color density, with a dye dissolved or dispersed in a liquid medium, for example, water, and having a molecular weight of 330 to 400, at a dyeing temperature of 150.degree. C. or more within a closed system.

Method of dyeing a high heat-resistant synthetic fiber material

A synthetic fibers having a melting or softening temperature of 160.degree. C. or more, for example, polyester fibers, are dyed with an organic coloring material having a molecular weight of 370 or more, for example, disperse dye, vat dye and phthalocyanine pigment, at a temperature of 150.degree. C. or more, at a high color depth, and the resultant dyed product exhibits a high color fastness to washing or light.

Method of dyeing a synthetic fiber-material and dyed synthetic fiber

Deeply dyed polyester fabric

A polyester fiber having a superior stainproof property comprises at least one fiber-forming polyester copolymer comprising a backbone polyester polymer and at least one type of terminal substituent which blocks at least some of the terminals of the molecules of the backbone polyester polymer and which substituent consists of a polyoxyalkyleneglycol monoether group of the formula (I):

Stainproof polyester fiber

An antistatic polyester fabric having a water repellency, which comprises a woven or knitted fabric comprising a fiber of a modified polyester composed mainly of a polyester and blended with an antistatic agent, at least the surface of which is covered with a fluorine type water and oil-repellency agent.

Antistatic polyester fabric having water repellency

A cut pile fabric such as a velvet composed of a synthetic fiber pile having deep color shade and smooth touch on its pile surface, the piles thereof having non-mushroom shaped cut ends at their tip portions, defined by the equation d.sub.1 /d.sub.2 .ltoreq.1.3, where d.sub.1 is the maximum diameter of the tip portion and d.sub.2 is a diameter of the remaining portion of the piles. The pile fabric is obtained by utilizing, as a pile yarn, a synthetic yarn having a breakage strength of less than 2.8 g/De, a primary yielding strength of more than 1.2 g/De, a breakage elongation of less than 50%, and a primary yielding elongation of less than 10%. Such synthetic yarn can advantageously be prepared by a crystallization drawing process.

Pile fabric with non-mushroom shaped cut ends

A process for the preparation of a woven fabric of low air permeability which comprises preparing a woven fabric by use of a composite fiber of a splitting and severing type, which consists of polyester and polyamide and produces extremely fine fibers of 0.001 to 0.8 denier size, as a warp and/or a weft; treating thus obtained woven fabric by use of an aqueous emulsion of a swelling agent for polyester and nylon under the conditions where nylon is mainly allowed to swell and then shrink; scouring and dyeing the woven fabric; and after calendering the woven fabric with the use of heated rollers rotated under pressure.

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Toyonaka, Japan

Shigenobu Kobayashi