Industrial textile for manufacturing a fibrous web

Patent metadata

Field	Value
Publication number	US-11505897-B2
Application number	US-202117338471-A
Country	US
Kind code	B2
Filing date	Jun 3, 2021
Priority date	Jun 4, 2020
Publication date	Nov 22, 2022
Grant date	Nov 22, 2022

Abstract

An industrial textile (6) for manufacturing a fibrous web has first machine direction yarns (1) on the front side (7) which bind to first cross-machine direction yarns (4) in a first pattern, while second machine direction yarns (2) on the back side bind to second cross-machine direction yarns (5) in a second pattern. Third machine direction yarns (3) bind to the first cross-machine direction yarns (4) and the second cross-machine direction yarns (5) in a third pattern. The third pattern has at least one interlacing point (71) on the front side where one of the third machine direction yarns (3) passes over one of the first cross-machine direction yarns (4) and at least one interlacing point (72) on the back side (8) where the same third machine direction yarn (3) passes under one of the second cross-machine direction yarns (5).

First claim

We claim:

1. An industrial textile ( 6 ) for manufacturing a fibrous web, the industrial textile ( 6 ) having a front side ( 7 ) and a back side ( 8 ), the industrial textile ( 6 ) having
a bind and comprising:
first machine direction yarns ( 1 ),
second machine direction yarns ( 2 ),
third machine direction yarns ( 3 ),
first cross-machine direction yarns ( 4 ),
second cross-machine direction yarns ( 5 ),

wherein
the first machine direction yarns ( 1 ) on the front side ( 7 ) of the industrial textile ( 6 ) bind to the first cross-machine direction yarns ( 4 ) according to a first pattern,
the second machine direction yarns ( 2 ) on the back side of the industrial textile bind to the second cross-machine direction yarns ( 5 ) according to a second pattern,
the third machine direction yarns ( 3 ) bind to the first cross-machine direction yarns ( 4 ) and the second cross-machine direction yarns ( 5 ) according to a third pattern,
the third machine direction yarns ( 3 ) are configured to extend side by side with the first machine direction yarns ( 1 ) on the front side ( 7 ) of the industrial textile ( 6 ) and form an integral part of the bind,
the third pattern comprises interlacing points ( 71 ) on the front side ( 7 ) of the industrial textile ( 6 ), the interlacing point ( 71 ) is configured to form when one of the third machine direction yarns ( 3 ) is configured to pass over one of the first cross-machine direction yarns ( 4 ),
the third pattern comprises interlacing points ( 72 ) on the back side ( 8 ) of the industrial textile ( 6 ), the interlacing point ( 72 ) is configured to form when the same third machine direction yarn ( 3 ), which is configured to pass over the first cross-machine direction yarn ( 4 ), is configured to pass under one of the second cross-machine direction yarns ( 5 ),
a common interlacing point ( 91 ) is configured to form when a first machine direction yarn ( 1 ), which is adjacent to the third machine direction yarn ( 3 ) that is configured to pass over one of the first cross-machine direction yarns ( 4 ), under the preceding first cross-machine direction yarn ( 4 ) and under the following first cross-direction yarn ( 4 ) on the front side ( 7 ) of the industrial textile ( 6 ), is configured to pass over the same first cross-machine direction yarn ( 4 ) as the third machine direction yarn ( 3 ), under the preceding first cross-machine direction yarn ( 4 ) and under the following first cross-direction yarn ( 4 ), and
the common interlacing point ( 91 ) is configured to form at least twice within the second pattern.

2. The industrial textile of claim 1 , wherein the first pattern comprises the first machine direction yarns ( 1 ) and the first cross-machine direction yarns ( 4 ) which are configured in the following manner: Each first machine direction yarn ( 1 ) repeatedly passes under one first cross-machine direction yarn ( 4 ) and over one first cross-machine direction yarn ( 4 ), the first machine direction yarns ( 1 ) next to each other are arranged in such a manner that when a coincidentally selected first machine direction yarn ( 1 ) is under a first cross-machine direction yarn ( 4 ) a first machine direction yarn ( 1 ) next to the coincidentally selected first machine direction yarn ( 1 ) is above the first cross-machine direction yarn ( 4 ).

3. The industrial textile of claim 1 , wherein the second pattern comprises the second machine direction yarns ( 2 ) and second cross-machine direction yarns ( 5 ) which are configured in the following manner: Each second machine direction yarn ( 2 ) repeatedly passes over twelve second cross-machine direction yarns ( 5 ), under one second cross-machine direction yarn ( 5 ), over two second machine direction yarns ( 5 ) and under one second cross-machine direction yarn ( 5 ), the second pattern having an offset of ±6.

4. The industrial textile of claim 1 , wherein the third pattern comprises the third machine direction yarns ( 3 ), the first cross-machine direction yarns ( 4 ) and the second cross-machine direction yarns ( 5 ) which are configured in the following manner: Each third machine direction yarn ( 3 ) passes under three first cross-machine direction yarns ( 4 ) and over one first cross-machine direction yarn ( 4 ) on the paper side of the industrial textile and it passes under one second cross-machine direction yarn ( 5 ) on the machine side every second time when it passes under three first cross-machine direction yarns ( 4 ).

5. The industrial textile of claim 1 , wherein the ratio of the first cross-machine direction yarns ( 4 ) to the second cross-machine direction yarns ( 5 ) is 3:2.

6. The industrial textile of claim 1 , wherein the first pattern comprises the first machine direction yarns ( 1 ) and the first cross-machine direction yarns ( 4 ) which are configured in the following manner: Each first machine direction yarn ( 1 ) passes below three first cross-machine direction yarns ( 4 ) and over one first machine direction yarn ( 4 ), the first pattern having an offset of ±1.

7. The industrial textile of claim 6 , wherein the second pattern comprises the second machine direction yarns ( 2 ) and the second cross-machine direction yarns ( 5 ) which are configured in the following manner: Each second machine direction yarn ( 2 ) passes under one second cross-machine direction yarn ( 5 ), over four second cross-machine direction yarns ( 5 ), under one cross-machine direction yarn ( 5 ) and over two second cross-machine direction yarns ( 5 ), the second pattern having an offset of ±1.

8. The industrial textile of claim 6 , wherein the third pattern comprises the third machine direction yarns ( 3 ), the first cross-machine direction yarns ( 4 ) and the second cross-machine direction yarns ( 5 ) which are configured in the following manner: Each third machine direction yarn ( 3 ) passes under three first cross-machine direction yarns ( 4 ) and over one first cross-machine direction yarn ( 4 ) and it passes under one second cross-machine direction yarn ( 5 ) every second time when it passes under three first cross-machine direction yarns ( 4 ).

9. The industrial textile of claim 8 , wherein the ratio of the first cross-machine direction yarns ( 4 ) to the second cross-machine direction yarns ( 5 ) is 3:2.

10. The industrial textile of claim 7 , wherein the second pattern comprises second machine direction yarns ( 2 ) and second cross-machine direction yarns ( 5 ) which are configured in the following manner: Each second machine direction yarn ( 2 ) passes under one second cross-machine direction yarn ( 5 ) and over seven second cross-machine direction yarns, the second pattern having an offset of ±5.

11. The industrial textile of claim 7 , wherein the third pattern comprises the third machine direction yarns ( 3 ), the first cross-machine direction yarns ( 4 ) and the second cross-machine direction yarns ( 5 ) which are configured in the following manner: Each third machine direction yarn ( 3 ) passes under three first cross-machine direction yarns ( 4 ) and over one first cross-machine direction yarn ( 4 ) and it passes under one second cross-machine direction yarn ( 5 ) every second time when it passes under three first cross-machine direction yarns ( 4 ).

12. The industrial textile of claim 7 , wherein the ratio of the first cross-machine direction yarns ( 4 ) to the second cross-machine direction yarns ( 5 ) is 1:1.

13. The industrial textile of claim 1 , wherein the first pattern comprises first machine direction yarns ( 1 ) and first cross machine direction yarns ( 4 ) which are configured in the following manner: Each first machine direction yarn ( 1 ) passes ov

Assignees

• Valmet Technologies Oy

Inventors

• Martikainen Hannu
• Rautio Tania
• Seppänen Mari
• Taipale Seppo

Classifications

• D03D13/00

  Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft · CPC title

• D03D13/004 Primary

  with weave pattern being non-standard or providing special effects · CPC title

• D21F1/0036 Primary

  Multi-layer screen-cloths · CPC title

• D21F1/0045 Primary

  Triple layer fabrics · CPC title

• D03D11/00 Primary

  Double or multi-ply fabrics not otherwise provided for · CPC title