Title:
不織布シートおよびその製造方法
Document Type and Number:
Japanese Patent JP5538977
Kind Code:
B2
Abstract:
Provided is a sheet of nonwoven fabric which has surface irregularities and is for use as the surface sheet or absorbent of, for example, a paper diaper, the shape of the surface irregularities being less apt to be changed by external pressure, etc. The sheet of nonwoven fabric has a machine direction (MD), a cross direction (CD), a thickness direction (TD) which are perpendicular to one another, and has an upper surface (A) and a lower surface (B) in the thickness direction. The upper surface has a plurality of protrusions (2) continuously extending, in parallel, in the cross direction and further has a plurality of recesses (3) that are located between the adjacent protrusions and extend in the cross direction. The sheet of nonwoven fabric comprises a first fibrous layer (4) and a second fibrous layer (5), the first and second layers being located on the upper-surface side and the lower-surface side, respectively. The first fibrous layer comprises heat-fusible fibers, and the second fibrous layer comprises coil-shaped three-dimensional crimp fibers. The coil-shaped three-dimensional crimp fibers of the second fibrous layer have been oriented mainly in the machine direction and have formed a network due to entanglement thereof without having been fused at the sites where the crimp fibers cross one another.
Inventors:
Uematsu Katsuhiro
Toru Ohba
Satoshi Mizutani
Toru Ohba
Satoshi Mizutani
Application Number:
JP2010075976A
Publication Date:
July 02, 2014
Filing Date:
March 29, 2010
Export Citation:
Assignee:
UNI-CHARM CO.,LTD.
International Classes:
D04H1/559; A61F13/15; A61F13/49; A61F13/511; A61F13/53; D04H1/70
Domestic Patent References:
| JP2009185408A | ||||
| JP2001328191A |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Atsushi Ebiya
Satoshi Deno
Hiroyuki Onoda
Yuichi Morimoto
Takashi Ishida
Tetsuji Koga
Atsushi Ebiya
Satoshi Deno
Hiroyuki Onoda
Yuichi Morimoto