Method for producing cellulose shaped-bodies
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United States of America Patent
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Feb 13, 2007
Grant Date -
N/A
app pub date -
Sep 29, 2000
filing date -
Oct 7, 1999
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Abstract
Process for manufacture of cellulose mouldings, such as fibres, filaments, or films, from TCF-bleached or ECF-bleached cellulose, in which the bleached cellulose is dissolved in an aqueous tertiary aminoxide to form a mouldable cellulose, the cellulose solution deforms, and the moulding comes into being by coagulation of the deformed solution, characterized in that, to reduce the cellulose decomposition in the process, TCF-bleached cellulose is used comprising carboxyl group content in the range from 1 to 35 .mu.mol/g or an ECF-bleached cellulose with carboxyl group content in the range from 1 to 50 .mu.mol/g. Cellulose mouldings having a reduced cellulose decomposition may be formed by said process.
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