Teijin Fibers Limited

Murata Manufacturing Co., Ltd.

Tsuyoshi Soeda

Kenichiro Takumi

Masayuki Tsuji

Ryosuke Ebina

Shuji Minato

Tadayuki Fukuro

Norimitsu Kamiyama

A knitted fabric structure that includes a piezoelectric yarn having a piezoelectric material that produces a surface potential by input of an external force from an outside of the piezoelectric yarn; and an elastic yarn having stretchability knitted together with the piezoelectric yarn, wherein the piezoelectric yarn has a mixing ratio of 5% or more based on a whole of the knitted fabric structure.

Knitted fabric structure, socks, arm cover, leggings, and shirt

An undergarment is provided that favorably adheres to the skin and has superior shape retention. The undergarment according to the present invention is an undergarment that is comprised of a fabric having a woven structure, a knitted structure or a non-woven fabric structure, wherein the fabric contains a filament yarn A having a filament diameter of 10 to 1000 nm and a filament yarn B having a filament diameter greater than 1000 nm, and the filament yarn A is exposed on the side that contacts the skin.

Undergarment

A knitted/woven fabric of polyester fibers is produced from a polyester polymer obtained by condensation-polymerizing an aromatic dicarboxylate in the presence of a catalyst which comprises a mixture of a titanium compound ingredient (A) comprising a titanium alkoxide and at least one product of the reaction of the titanium alkoxide with a specific carboxylic acid or anhydride thereof and a specific phosphorus compound ingredient (B) and/or comprises a product of the reaction of a titanium compound ingredient (C) with a specific phosphorus compound ingredient (D). The knitted/woven fabric obtained has a satisfactory color tone (low value of b*) and is excellent in suitability for knitting/weaving and dyeability.

Knitted/woven fabric of polyester fiber

A flat multifilament yarn knitted fabric having excellent bulkiness, drape, and water&#x2022;sweat-absorbability is a knitted fabric comprising multifilament yarns each comprising a plurality of flat cross section shape-having filaments comprising a fiber-forming thermoplastic polymer as a main component. In the above-described flat cross section, three or more expanded portions expanded toward the outside of the longitudinal central line of the flat cross section per half side of the flat cross section, and two or more constricted portions formed between the expanded portions per half side are approximately symmetrically formed on both the sides of the longitudinal central line with respect to the above-described longitudinal central line. Cross section flatness represented by the ratio (B/C) of the length (B) of the above-described modified cross section in the direction of the longitudinal central line to the maximum width (C) in the direction orthogonal to the direction of the longitudinal central line is in a range of 2 to 6. The above-described multifilament yarns are comprised in the knitted fabric in an amount of 50 to 100 percent by weight based on the total weight of the knitted fabric.

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Osaka, Japan

Tsuyoshi Soeda