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Title:
METHOD FOR PRODUCING NONWOVEN FABRIC FOR LAMINATE AND THE RESULTANT NONWOVEN FABRIC
Document Type and Number:
Japanese Patent JP2003213592
Kind Code:
A
Abstract:

To provide an economical method of less environmental loading for producing a nonwoven fabric for laminates, consisting mainly of p-aramid staple fibers by utilizing broke formed during the production process or defective nonwoven fabrics after the production process.

This method for producing the nonwoven fabric for laminates comprises a wet papermaking from a stock slurry consisting mainly of p-aramid staple fibers; wherein broke formed during the papermaking operation is disaggregated to make a regenerated slurry, which is mixed into the stock slurry; alternatively, recovered nonwoven fabrics or broke consisting mainly of p-aramid staple fibers and having a breaking length after immersed in distilled water for 5 min of ≤4 km are put into water and disaggregated into a regenerated slurry, which is mixed into the stock slurry.


Inventors:
UENO HIROYOSHI
KATO YOSHIHISA
Application Number:
JP2002009616A
Publication Date:
July 30, 2003
Filing Date:
January 18, 2002
Export Citation:
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Assignee:
OJI PAPER CO
International Classes:
D21H11/14; D21B1/16; D21H13/26; (IPC1-7): D21H11/14; D21B1/16; D21H13/26