Cellulosic fibres

Details Cellulosic fibres Cellulosic fibres

1995-12-06

1998-03-24

Ryan, Patrick

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

428359, 428364, 428378, 428396, 811551, 81161, 8121, 427307, 427308, 427324, 604358, 604365, 604374, 604376, 442197, 442416, B32B 2300

Patent

active

057310831

ABSTRACT:
Carboxymethyl cellulose fiber having a degree of substitution of at least 0.1, preferably 0.2-0.5, carboxymethyl groups per glucose unit is derived from solvent-spun cellulose fiber, for example by reaction with a strong alkali and a monochloroacetate reagent. The fiber has an absorbency of at least 8 grams, usually at least 15 grams, 0.9% saline solution per gram of fibre and a tenacity of at least 10, usually at least 15, cN/tex. It can be used for absorbent personal products.

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D. Perrier et al, "Properties of Carboxymethylated Cotton Prepared in Nonaqueous Media", Journal of Applied Polymer Science, 17:3375-3389 (1973)
D. Perrier et al, "Catalysis of the Cellulose-Cyclic Urea Reactions by Built-In Acid Groups", Textile Research Journal, pp. 680-685 (1971)

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