Process for producing a sponge cloth

Details Process for producing a sponge cloth Process for producing a sponge cloth

1997-06-16

1999-06-08

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By treating occluded solids

264 86, 264215, 264218, 264233, 264234, 264344, B29C 6720

Patent

active

059102756

ABSTRACT:
A sponge cloth of decrystallized cellulose modified by the acetyl group content, where the average degree of substitution is 0.2 to 1.5. The cloth does not contain any organic or inorganic sulfur compounds. The sponge cloth is produced by treating wood pulp with sodium hydroxide solution, then treating it with acetylating substances, drying and dissolving in an organic solvent with the addition of a pore-forming salt, fibers and optionally pigment dyes and foaming agents, spreading the mixture on a web and boiling in water with subsequent drying to form a finished cloth.

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Ullmann's Encyklopadie der Technischen Chemie, vol. 18, pp. 175-177, Oct. 1967.

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