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Patent Searching and Data


Title:
PRODUCTION OF NEEDLE PUNCH NONWOVEN FABRIC
Document Type and Number:
Japanese Patent JPH09195150
Kind Code:
A
Abstract:

To obtain a nonwoven fabric capable of dissolving the variation of the weight per a unit area in width direction and having a uniform profile in the weight per the unit area by heat fixing or heat compressing at least both end parts of a laminated web.

This method for producing a needle punch nonwoven fabric is to repeat processes of sending a faminated web obtained by piling card webs by a prescribed number of layers with a cross-wrapper, by a conveying conveyer 2 to a pressing device 3, and performing a heat fixing or a heat compressing on the laminated web 1 by giving a heat gradient at both ends rather than the central part, then guiding the same to a needle punch machine 4 for conducting a needle punching treatment, then sending the same to the next pressing process 3 through a delivery roll 5, so as to make ≤10% boiling water shrinkage at both ends of the nonwoven fabrics by performing a heat fixing car heat compressing treatments not to cause the transfer of fibers.


Inventors:
Ishihama, Taizo
Kodama, Hiromi
Ono, Tsutomu
Application Number:
JP1996000007284
Publication Date:
July 29, 1997
Filing Date:
January 19, 1996
Export Citation:
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Assignee:
TORAY IND INC
International Classes:
D04H1/46; D04H18/00; D04H18/02; (IPC1-7): D04H1/46; D04H18/00