Inventors:
Robert A. Tyler - Candler NC
Henry C. Ramsey - Asheville NC
Robert N. Armstrong - Asheville NC
Assignee:
BASF Corporation - Williamsburg VA
International Classification:
D06M 100, B32B 2304
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.