METHOD AND DEVICE FOR WET LAYING OF NON-WOVEN MATERIALS Russian patent published in 2020 - IPC D21F1/66 

Abstract RU 2711264 C1

FIELD: manufacturing technology.

SUBSTANCE: method and device for producing non-woven materials are described. Method involves the following stages: a) providing a three-phase (gas-liquid-solid) suspension containing air, water, fibrous material and a surfactant; b) depositing the suspension on a moving mesh carrier to obtain a fibrous web on the carrier; c) removing aqueous residue of suspension through mesh carrier; d) pumping of water residue, substantially in horizontal direction through one or more vessels for separation of phases with provision of free space under pressure not above pressure; e) recycling an aqueous residue pumped at step d) to step a); f) preferably preliminary integration of fibrous web.

EFFECT: method and device for wet laying of non-woven materials are disclosed.

18 cl, 2 dwg

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RU 2 711 264 C1

Authors

Ahoniemi, Hannu

Strandqvist, Mikael

Wijbenga, Gaatze

Venema, Arie

Dates

2020-01-16Published

2016-09-01Filed