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US 3,932,209 AGranted
Low hemicellulose, dry crosslinked cellulosic absorbent materials
AssigneePersonal Products Company
InventorPronoy Kumar Chatterjee
Life of this patent
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Abstract
Dry crosslinked, fibrous cellulosic absorbent material having low hemicellulose content and low knot content, the fibers being internally crosslinked for the major part and being relatively free of intercrosslinking with adjacent fibers.
Claims3
A method of making pulpboard for grinding into pulp fluff of improved dry and wet resilience and increased fluid absorption and retention capacity from cellulose fibers having a high hemicellulose content comprising:
- treating said cellulose fibers to reduce said hemicellulose content to no more than about 7%;
- forming a pulpboard from said treated cellulosic fibers;
- and
- dry crosslinking said fibers in said pulpboard form to result in a pulpboard having a knot content of less than 15%.
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Dependencies are inferred from the claim text.