Method of preparing cellulosic fibers having increased absorbenc

Details Method of preparing cellulosic fibers having increased absorbenc Method of preparing cellulosic fibers having increased absorbenc

1988-02-16

1990-04-24

Lusignan, Michael

Bleaching and dyeing; fluid treatment and chemical modification

Chemical modification of textiles or fibers or products thereof

Cellulose fibers

811554, 604375, 428533, D06M 100, B32B 2304

Patent

active

049196812

ABSTRACT:
A method of increasing the absorbency of cellulosic fibers by treating the cellulosic fibers with an aqueous acid solution having a pH value of no more than 4. The treatment is carried out for a time sufficient to obtain the desired absorbency. Optionally, the aqueous acidic solution treatment can be preceded or succeeded by a hot water treatment to further increase the absorbency of the cellulosic fibers. The cellulosic fibers find particular application in nonwoven articles that require high absorbency, i.e., diapers, tampons, medical sponges, etc.

REFERENCES:
patent: 1835866 (1931-12-01), Harold
patent: 2538279 (1951-01-01), Sisson et al.
patent: 3902493 (1975-09-01), Baier et al.
patent: 4128692 (1978-12-01), Reid
patent: 4240937 (1980-12-01), Allen
patent: 4575376 (1986-03-01), Shah
patent: 4634439 (1987-01-01), Sustmann
patent: 4748076 (1958-05-01), Saotome
Document dated 12/8/86 containing instructions for a shipment by BASF of Cellulosic Fibers to Int'l. Playtex.

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