Title:
【発明の名称】界面エネルギー勾配を提供する不織布ウエブの選択的開口方法及びこの方法に従い作られた不織布ウェブ
Document Type and Number:
Japanese Patent JP3272730
Kind Code:
B2
Abstract:
The present invention pertains, in a preferred embodiment, to a method for selectively aperturing a nonwoven web exhibiting a plurality of surface energy gradients. The method includes the steps of: providing a nonwoven web of fibers exhibiting a surface energy, the nonwoven web having a first surface, a second surface and a plurality of fluid passageways placing the first and second surfaces in fluid communication with one another; applying a surface treatment to the first surface of the nonwoven web, the surface treatment having a surface energy less than the surface energy of the fibers of the nonwoven web creating a plurality of surface energy gradients defined by discontinuous, spaced regions which are adapted to exert a force on a fluid contacting the first surface, such that the fluid will be directed toward the fluid passageways for transportation away from the first surface and in the direction of the second surface; weakening the nonwoven web at a plurality of locations creating a plurality of weakened, melt-stabilized locations; and applying a tensioning force to the nonwoven web to cause the nonwoven web to rupture at the plurality of weakened, melt-stabilized locations creating a plurality of apertures in the nonwoven web coincident with the plurality of weakened, melt-stabilized locations. The web is particularly well suited for use as a topsheet on a disposable absorbent article.
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| JP6267501 | 3D sheet |
| JPH07133569 | BIODEGRADABLE NONWOVEN FABRIC |
Inventors:
Kalaw, John Joseph
Benson, Douglas Harin
Cree, James William
Labagria, Luis Eduard Ferratz de Amaral
Benson, Douglas Harin
Cree, James William
Labagria, Luis Eduard Ferratz de Amaral
Application Number:
JP51347097A
Publication Date:
April 08, 2002
Filing Date:
September 12, 1996
Export Citation:
Assignee:
THE PROCTER AND GAMBLE COMPANY
International Classes:
A61F13/511; A61F5/44; A61F13/00; A61F13/15; A61F13/49; D04H1/54; D06M15/643; D06M15/70; (IPC1-7): D06M15/70; A61F5/44; A61F13/15; A61F13/49; A61F13/511; D04H1/54; D06M15/643
Domestic Patent References:
| JP7136211A | ||||
| JP3267058A | ||||
| JP4887165A |
Attorney, Agent or Firm:
Takehiko Suzue (5 outside)