Asahi Kasei Kabushiki Kaisha

Mitsuyuki Yamamoto

Hiroshi Yamazaki

Tadashi Koyanagi

Teruhiko Matsuo

Takao Abe

Kunihiko Fukumori

Hideo Ikenaga

Kazuto Oue

Hiroyuki Mizuki

A stretchable high density woven fabric showing a cover factor of from 1,800 to 2,540 and stretchability in terms of a stretch ratio of from 5 to 20% in the warp or weft direction and having a poly(trimethylene terephthalate) fiber at least in the direction in which the woven fabric shows stretchability. The high density woven fabric shows good stretchability and water resistance (water pressure resistance), produces less rustling when contacted with woven fabrics, and provides an excellent soft and comfortable feeling, and it is therefore appropriate for sportswear, outerwear, and the like.

Stretchable high-density woven fabric

The invention provides dyed yarn characterized by comprising dyed polytrimethylene terephthalate fiber, having an elastic recovery of 60% or greater under 10% elongation, and having a boiling water shrinkage of no greater than 4%. The dyed yarn of the invention has excellent stretchability and dimensional stability as well as a soft feel, and is therefore suitable for use in fabrics.

Dyed yarn

Beam for weaving and sizing method

The invention provides false twisted yarn of a polyester composite fiber characterized in that the fiber is composed of single-filaments which are laminated with two types of polyester components in a side-by-side or eccentrical core/sheath fashion, at least one of the two polyester components is poly(trimethylene terephthalate), the difference in intrinsic viscosity between the two polyester components is 0.05-0.9 (dl/g), and the false twisted yarn has latent crimpability and has at least 50% stretching elongation of developed crimps prior to boiling water treatment.

False twisted yarn of polyester composite fiber and method for production thereof

Growing community of inventors

Kanazawa, Japan

Mitsuyuki Yamamoto