Nonwoven-fabric structure and manufacturing method therefor
AssigneeToyobo Co., Ltd.
InventorsShigeki Tanaka, Yukinari Okuyama, Hideo Yoshida
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Abstract
A nonwoven fabric structure according to the present invention is a nonwoven fabric structure comprising a long-fiber nonwoven fabric as a main constituent, wherein the nonwoven fabric structure has a basis weight of 250 to 2000 g/m2, a Frazier permeability of 0 to 20 cc/cm2·s, and an apparent density of 0.5 to 1.3 g/cm3, and therefore has excellent shaping properties and excellent mechanical strength properties.
Claims6
A nonwoven fabric structure comprising a long-fiber nonwoven fabric as a main constituent, the nonwoven fabric structure having a basis weight of 250 to 2000 g/m2, a Frazier permeability of 0 to 20 cc/cm2·s, and an apparent density of 0.5 to 1.3 g/cm3.
A method of producing a nonwoven fabric structure, characterized by comprising stacking at least two or more long-fiber nonwoven fabrics having a basis weight of 200 g/cm2 or more, performing mechanical entanglement, and subsequently performing press processing under conditions involving a heating temperature of 140 to 255° C. and a pressing pressure of 0.1 to 5 MPa.
Dependencies are inferred from the claim text.