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Title:
浸出用シート
Document Type and Number:
Japanese Patent JP4175257
Kind Code:
B2
Abstract:
A percolation sheet 1 is constituted of a laminated sheet comprising a long-fiber nonwoven fabric 2 with a basis weight of 5 to 30 g/m<2>, at least a portion of which is formed from synthetic fibers of a high-melting-point resin, and a short-fiber nonwoven fabric 3 with a weight of 3 to 15 g/m<2>, at least a portion of which is formed from synthetic fibers of a low-melting-point resin. The short-fiber nonwoven fabric 3 is formed from a nonwoven fabric in which fibers with a fiber length of 3 to 15 mm are randomly dispersed and deposited using a dry process, and these fibers are thermally bonded to each other. In a diagram illustrating the relationship between the pore size of the voids in the percolation sheet and the distribution rate thereof, the distribution rate of the maximum peak is ten times or more of the distribution rate of the other peaks.

Inventors:
Fumio Miyahara
Minami Yamaguchi
Azumi Houji
Application Number:
JP2003549613A
Publication Date:
November 05, 2008
Filing Date:
December 05, 2002
Export Citation:
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Assignee:
Taiki Trading Co., Ltd.
Venus Paper Co., Ltd.
International Classes:
B32B5/26; B32B7/027; D04H5/06; A47J31/06; B01D39/16; D04H1/42; D04H1/541; D04H1/55; D04H1/559; D04H3/011; D04H13/00
Domestic Patent References:
JP9021055A
JP9271617A
Attorney, Agent or Firm:
Taji U.S. Patent Office