Nonwoven fabric composed of ultra-fine continuous fibers,...

Details Nonwoven fabric composed of ultra-fine continuous fibers,... Nonwoven fabric composed of ultra-fine continuous fibers,...

2011-01-18

2011-01-18

Ortiz, Angela (Department: 1782)

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Nonwoven fabric

Including strand or fiber material which is a monofilament...

C442S363000, C264S103000, C264S172130, C264S172160

Reexamination Certificate

active

07871946

ABSTRACT:
A nonwoven fabric composed of ultra-fine continuous fibers having a mean fineness of not more than 0.5 dtex is prepared. The nonwoven fabric comprises a water-soluble thermoplastic resin in a proportion of not more than 5% by weight relative to the nonwoven fabric, has an absorbing height of not less than 30 mm as determined at 20° C. after 10 minutes based on Byreck method when the nonwoven fabric immersion-treated for 60 minutes in a water of 80° C. is used, and satisfies the following formula: (B)/(A)≧0.25, wherein the symbol (B) represents a tensile strength [N/5 cm] in the longitudinal direction and the lateral direction of the nonwoven fabric and the symbol (A) represents a fabric weight [g/m] of the nonwoven fabric. In the nonwoven fabric, not less than 30% of the surface may be coated with the water-soluble thermoplastic resin. The water-soluble thermoplastic resin may be a water-soluble thermoplastic polyvinyl alcohol, e.g., a modified polyvinyl alcohol containing an ethylene unit in a proportion of 3 to 20 mol %.The present invention provides a nonwoven fabric composed of ultra-fine continuous fibers, having a high flexibility or softness, and having a high mechanical strength even when the fiber diameter is small, and having an excellent water absorbency, as well as a production process and an application thereof.

REFERENCES:
patent: 3399521 (1968-09-01), Thoma et al.
patent: 3619316 (1971-11-01), Ishida et al.
patent: 4147574 (1979-04-01), Setsuie et al.
patent: 4476186 (1984-10-01), Kato et al.
patent: 5041252 (1991-08-01), Fujii et al.
patent: 5366832 (1994-11-01), Hayashi et al.
patent: 6624100 (2003-09-01), Pike
patent: 2003/0124938 (2003-07-01), Zafiroglu et al.
patent: 2003/0166370 (2003-09-01), Harris et al.
patent: 1 046 747 (2000-10-01), None
patent: 48-31955 (1973-10-01), None
patent: 7-102463 (1995-04-01), None
patent: 7-258964 (1995-10-01), None
patent: 2000-248431 (2000-09-01), None
patent: 2001-262456 (2001-09-01), None
patent: 2001-265456 (2001-09-01), None
patent: 2003-073970 (2003-12-01), None
patent: 330947 (1998-05-01), None
patent: 477836 (2002-03-01), None
patent: WO 2004/058374 (2004-07-01), None
U.S. Appl. No. 12/442,124, filed Mar. 20, 2009, Tsujimoto, et al.

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