HYDROENTANGLEMENT SCREEN - VOITH FABRICS PATENT GMBH

Title:

HYDROENTANGLEMENT SCREEN

Document Type and Number:

WIPO Patent Application WO/2004/046440

Kind Code:

A2

Abstract:

A method of producing a screen (10), on which a nonwoven material may be formed by hydroentanglement, involves providing a layer of radiation curable polymeric resin material (12) in fluid form and irradiating this layer through a mask (22), selectively transparent to the radiation, so as to effect at least partial curing of the layer (12) in positions corresponding with radiationtransparent regions of the mask (22). The uncured polymeric material is then removed and any necessary subsequent full cure of the residual material takes place. The radiation-transparent regions of the mask (22) have various sizes and shapes and are distributed randomly such that apertures (15) provided in the cured polymeric material of the screen are not provided in a regular pattern or form.

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Inventors:

SAYERS IAN CHRISTISON (GB)

Application Number:

PCT/EP2003/013294

Publication Date:

June 03, 2004

Filing Date:

November 21, 2003

Export Citation:

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Assignee:

VOITH FABRICS PATENT GMBH (DE)
SAYERS IAN CHRISTISON (GB)

International Classes:

B29C35/08; B29C35/10; B29C39/14; D04H18/04; D21F11/00; B29C35/02; (IPC1-7): D04H/

Domestic Patent References:

WO2003083197A1

2003-10-09

Foreign References:

US5895623A	1999-04-20
US3485706A	1969-12-23
US5768756A	1998-06-23
US6420100B1	2002-07-16

Attorney, Agent or Firm:

VOITH FABRICS PATENT GMBH (Heidenheim, DE)

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