Method for manufacturing alveolate cellulosed products

Abstract

The present invention provides a process for producing alveolar cellulosic products (sponges, sponge-cloths, etc.) from a cellulosic raw material, the process comprising: at least partially dissolving a cellulosic raw material in an intrinsic solvent for cellulose; incorporating an effective quantity of at least one pore-forming agent into the resulting mixture, with mixing; said pore-forming agent(s), being compatible with the cellulosic mixture, being capable of generating macro- and micro-pores when it/they is/are actuated; gelling the homogeneous dough thus obtained; treating said gelled dough under conditions in which the cellulose precipitates out and the pore-forming agent(s) present are actuated. The process is an advantageous alternative to the viscose process which is a polluting process. The properties of the products obtained are completely similar to those of products obtained using the viscose process. The (novel) products form part of the invention.

Dependencies are inferred from the claim text.