Clothing

Patent metadata

Field	Value
Publication number	US-9938665-B2
Application number	US-201414911068-A
Country	US
Kind code	B2
Filing date	Jul 22, 2014
Priority date	Aug 9, 2013
Publication date	Apr 10, 2018
Grant date	Apr 10, 2018

Abstract

A clothing for use in machines for producing a fiber web such as a paper, cardboard, tissue or nonwoven web, in particular a press felt, has a load-absorbing main structure and at least one liquid-absorbing and/or liquid-storing structure arranged on and/or in the load-absorbing main structure. The liquid-absorbing and/or liquid-storing structure is a sponge cloth-like porous structure made of regenerated cellulose, viscose or a mixture thereof.

First claim

The invention claimed is:

1. A clothing for use in machines for producing a fiber web, the clothing comprising:
a load-absorbing main clothing structure; and
at least one porous structure having one or more characteristics selected from the group consisting of a liquid-absorbing characteristic and a liquid-storing characteristic, said at least one porous structure being disposed in and/or on said load-absorbing main clothing structure, said at least one porous structure having a sponge cloth configuration and consisting primarily of cellulose, said at least one sponge cloth porous structure being a continuous formation or a predominantly continuous formation.

2. The clothing according to claim 1 , configured for a machine for producing paper, cardboard, tissue or nonwoven web.

3. The clothing according to claim 1 , configured as a press felt.

4. The clothing according to claim 1 , wherein said cellulose is regenerated cellulose, viscose or a mixture thereof.

5. The clothing according to claim 4 , which comprises a multiplicity of layer-forming structures made of said regenerated cellulose, viscose or a mixture thereof arranged on one or both sides of, and/or in, said clothing main structure.

6. The clothing according to claim 4 , wherein said main clothing structure is impregnated or foamed with a solution of said regenerated cellulose, viscose or a mixture thereof.

7. The clothing according to claim 4 , wherein at least said structure consisting of regenerated cellulose, viscose or a mixture thereof is substantially biodegradable.

8. The clothing according to claim 1 , wherein said sponge cloth porous structure has an open-pore configuration.

9. The clothing according to claim 1 , wherein said sponge cloth porous structure has a closed-pore configuration.

10. The clothing according to claim 1 , wherein said at least one porous structure is one or a plurality of porous structures formed of regenerated cellulose, viscose or a mixture thereof, and said porous structures are connected to one another and/or to said main clothing structure by a process selected from the group consisting of mechanically connected, needled, adhesive bonded, welded, extruded, laminated and fused.

11. The clothing according to claim 1 , wherein said at least one porous structure is formed of regenerated cellulose, viscose or a mixture thereof is connected to said main clothing structure by a process selected from the group consisting of mechanically connected, needled, adhesive bonded, welded, extruded, laminated and fused.

12. The clothing according to claim 1 , wherein said sponge cloth porous structure is produced and processed from regenerated cellulose, viscose or a mixture thereof in the form of reel material, or from individual pieces that are connected to one another, or as a single-piece structure.

13. The clothing according to claim 1 , wherein said sponge cloth porous structure is formed as a continuous structure.

14. The clothing according to claim 1 , wherein said main clothing structure is a structure selected from the group consisting of a woven fabric, laid scrim, crocheted fabric, knitted fabric, spiral structure, extrudate, poured material, compressed material, sintered structure, spiralized structure made of strip materials and yarn sheets with fiber batts.

15. The clothing according to claim 1 , which comprises further layers selected from the group consisting of staple fibers, membranes, foils and films.

16. The clothing according to claim 1 , wherein one or both of said main clothing structure or said sponge cloth porous structure comprises injected particles or impregnations.

17. The clothing according to claim 1 , formed, at least in part, of biodegradable materials.

Assignees

• Voith Patent Gmbh

Inventors

• Malmquist Johan
• Karlsson Kjell
• Andersson Conny

Classifications

• D21F7/08 Primary

  Felts · CPC title

• D21F1/66

  Pulp catching, de-watering, or recovering; Re-use of pulp-water · CPC title

• D21F1/0036 Primary

  Multi-layer screen-cloths · CPC title