BIODEGRADABLE NONWOVEN FABRIC CONTAINING WOOD PULP AND THE METHOD FOR ITS MANUFACTURE Russian patent published in 2022 - IPC D04H1/425 D04H1/4258 D04H1/488 D04H1/49 D04H5/03 D04H1/541 D04H1/587 D04H5/04 

Abstract RU 2769362 C1

FIELD: personal hygiene products.

SUBSTANCE: present invention relates to a method for manufacturing biodegradable nonwoven fabric and a napkin. A method for manufacturing biodegradable nonwoven fabric, including steps in which a fibrous web is formed from a mixture of fibers containing biodegradable fibers and wood pulp fibers, or a layer of biodegradable fibers is formed with a layer of sanitary and hygienic paper. Next, at least part of the biodegradable fibers are woven together by water-jet treatment of a fibrous web or a fibrous web combined with a layer of sanitary and hygienic paper, and the woven fibrous web is dried. A biodegradable binder is applied to the woven fibrous web before drying the woven fibrous web, a biodegradable agent that gives strength in a wet state is added to the fiber mixture, a biodegradable binder is mixed with a fiber mixture.

EFFECT: invention makes it possible to increase the strength, softness and elasticity of non-woven material.

5 cl, 4 dwg, 1 tbl

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RU 2 769 362 C1

Authors

Rottger Henning

Dates

2022-03-30Published

2019-10-16Filed