Cellulose fibers

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United States of America Patent

PATENT NO 11414789
SERIAL NO

16466030

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Abstract

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There is provided a cellulose based fiber made of a i) cellulose dissolving pulp, and ii) a recycled cellulose textile, which is treated to swell the cellulose with a reducing additive and a) bleached with oxygen at alkaline conditions with a pH in the range 9-13.5 and/or b) bleached with ozone at acid conditions below pH 6, wherein the cellulose based fiber is manufactured with one selected from a Viscose process and a Lyocell process. Advantages include that the tensile strength of the fiber is improved and it is possible to manufacture improved cellulose fibers which comprise a fraction of recycled material.

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Patent Owner(s)

Patent OwnerAddress
CIRCULOSE AB103 23 STOCKHOLM

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Henriksson, Gunnar Solna, SE 10 99
Lindgren, Christofer Stockholm, SE 10 46
Lindström, Mikael Lidingö, SE 11 22

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