Title:
立体シート材料
Document Type and Number:
Japanese Patent JP3625804
Kind Code:
B2
Abstract:
A bulky sheet material having three-dimensional protrusions comprises a first fiber layer and a second fiber layer provided on at least one side of the first fiber layer. The first fiber layer contains thermally shrunken heat-shrinkable fibers. The second fiber layer comprises heat non-shrinkable fibers. The first fiber layer and the second fiber layer are partly joined together at a large number of joints formed by fusion bonding. The joints are formed by melting and solidification of a heat fusible resin having a higher melting point than the shrinkage starting temperature of the heat shrinkable fiber. The second fiber layer forms a large number of protrusions between the joints by the heat shrinkage of the first fiber layer while leaving the joints as depressions.
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Inventors:
Wataru Saka
Shoichi Taneichi
Takanobu Miyamoto
Yasuki Uchiyama
Yasuhiro Komori
Shoichi Taneichi
Takanobu Miyamoto
Yasuki Uchiyama
Yasuhiro Komori
Application Number:
JP2002047353A
Publication Date:
March 02, 2005
Filing Date:
February 25, 2002
Export Citation:
Assignee:
Kao Corporation
International Classes:
B32B5/26; D04H1/06; D04H1/559; D04H13/00; (IPC1-7): B32B5/26
Domestic Patent References:
| JP9003755A | ||||
| JP2001140158A | ||||
| JP5025763A | ||||
| JP4312431A | ||||
| JP2300365A | ||||
| JP9117982A | ||||
| JP9003755A | ||||
| JP2002187228A |
Attorney, Agent or Firm:
Osamu Hatori
Yoshiyuki Matsushima
Yoshiyuki Matsushima