Akira Kaneko, Yoshinori Kobayashi, Katsuya Hata: Soft nonwoven fabric of filaments. Mitsui Petrochemical, Sherman and Shalloway, April 28, 1992: US05108820 (375 worldwide citation)

Nonwoven fabrics formed, in spun-bonding process, of crimped bi-component composite filaments composed of (A) a first component composed of (a) 3 to 40% by weight of a propylene/ethylene random copolymer having a melting point, determined from DSC main peaks of 110.degree. to 150.degree. C. and a me ...

Keiji Kobayashi, Akira Kaneko, Katsuya Hata, Yoshinori Kobayashi: Air gun for the production of non-woven fabric and non-woven fabric producing apparatus. Mitsui Petrochemical, Sherman and Shalloway, August 9, 1994: US05336071 (3 worldwide citation)

An air gun apparatus which permits stable, fine spinning and is capable of discharging fine filaments at a certain degree of dispersion and affording a non-woven fabric of uniform shape is provided. The air gun includes an air nozzle and an accelerator tube. The air nozzle has a filament inlet and o ...

Hiroshi Ishii, Katsuya Hata, Yoshinori Kobayashi: Filaments dispersing device. Mitsui Petrochemical, Sherman and Shalloway, June 6, 1995: US05421064

An object of the present invention is to provide a dispersing device which can disperse filaments uniformly and widely on a moving collector surface by suppressing the turbulence of an air flow as a carrier medium for the filaments to thereby reduce the disturbance of the filaments.

Hiroshi Ishii, Katsuya Hata: Method and apparatus for producing nonwoven fabric. Mitsui Petrochemical, ZHANG SHEGAO, December 6, 1995: CN95105161

To stably produce a nonwoven fabric having a fineness in a broad range by gradually cooling a continuous filament discharged from a spinneret and independently optimizing forced cooling air and drawing air. Many polypropylene filaments 8 discharged from a spinneret 1 are gradually cooled in a throat ...