Double cross parallel binder fabric

• US 6,883,556 B2
• Filed: 12/30/2002
• Issued: 04/26/2005
• Est. Priority Date: 12/30/2002
• Status: Active Grant

• Current Assignee: Albany International Corporation
• Original Assignee: Albany International Corporation
• Inventors: Fagon, Monique, Fahrer, Ernest
• Primary Examiner(s): Calvert, John J.
• Assistant Examiner(s): Muromoto, Jr., Robert H.
• Application Number:
  US10/334,166
• Publication Number:
  US 20040173273A1
• Time in Patent Office: 848 Days
• Field of Search: 139/383.R, 139/383.A, 442/203, 442/205, 162/900, 162/902, 162/903
• US Class Current: 139/383.00A
• CPC Class Codes: D21F 1/0036 Multi-layer screen-cloths
• CPC Class Codes: Y10S 162/90 Papermaking press felts
• CPC Class Codes: Y10S 162/902 Woven fabric for papermaking drier section
• CPC Class Codes: Y10S 162/903 Paper forming member, e.g. fourdrinier, sheet forming member
• CPC Class Codes: Y10T 442/3179 Woven fabric is characterized by a particular or differential weave other than fabric in which the strand denier or warp/weft pick count is specified
• CPC Class Codes: Y10T 442/3195 Three-dimensional weave [e.g., x-y-z planes, multi-planar warps and/or wefts, etc.]

Abstract

A multi-layer fabric which may be utilized in a papermaking process. Such fabric has a first layer having machine direction (MD) yarns and cross-direction (CD) yarns interwoven therewith and a second layer having machine direction (MD) yarns and cross-direction (CD) yarns interwoven therewith. In such fabric, a plurality of pairs of first type of binders each having a first binder and a second binder are interwoven with the first and second layers. The first and second binders of at least one pair are interwoven with the first and second layers so as to pass over at least one same yarn on an outer surface of the first layer.

Claims

1. A fabric for use in making paper, said fabric comprising:

a first layer of machine direction (MD) yarns;

a second layer of machine direction (MD) yarns;

a first layer of cross-machine direction (CD) yarns;

a second layer of cross-machine direction (CD) yarns; and

a plurality of a first type of groups of additional cross-machine direction (CD) binder yarns each having a first CD yarn and a second CD yarn;

wherein said first and second CD yarns in at least one of the first type of groups are interwoven with said MD yarns of said first and second layers and pass over at least one same MD yarn on an outer surface of one of said first and second layers within a repeat pattern.

2. The fabric according to claim 1, wherein the first layer is a paper side upon which the cellulosic fiber slurry is deposited during a papermaking process and wherein said first CD yarn and said second CD yarn of said at least one of the first type of groups pass over said at least one same MD yarn on the outer surface of said first or paper side layer within the repeat pattern.

3. The fabric according to claim 1, wherein said first CD yarn and said second CD yarn of said at least one of the first type of groups pass over two same MD yarns on the outer surface of one of said first and second layers within the repeat pattern.

4. The fabric according to claim 1, further comprising a plurality of second type of groups of cross-machine direction (CD) binder yarns each group having two CD yarns and a weaving pattern different from that of the first type of groups of the CD yarns.

5. The fabric according to claim 4, wherein neither CD yarn of any of the second type of groups pass over a same yarn on the outer surface of said first layer within the repeat pattern.

6. The fabric according to claim 4, wherein the groups of the first type of CD binder yarns and the groups of the second type of CD binder yarns are arranged in an alternate manner such that the CD yarns of a respective one of the first type groups are located between two second type groups and the CD yarns of a respective one of the second type groups are located between two first type groups.

7. The fabric according to claim 6, wherein each of a number of the first and second type groups are respectively located between two CD yarns such that a pair of the first type of binders is located between two respective CD yarns one of which is located adjacent to a pair of the second type of binders, which is located adjacent to another CD yarn, which is located adjacent to another pair of the first type of binders, and so forth.

8. The fabric according to claim 2, wherein the first or paper side layer has a plain weave pattern.

9. The fabric according to claim 8, wherein the second or machine layer is woven in one of a four, five, and six-shed weave pattern.

10. The fabric according to claim 2, wherein the MD and CD yarns are monofilament yarns.

11. The fabric according to claim 1, wherein the fabric is usable in at least one of a forming, pressing, and drying operation of a papermaking process.

12. The fabric according to claim 1, wherein at least some of the MD yarns are one of polyamide yarns or polyester yarns.

13. The fabric according to claim 1, wherein at least some of the CD yarns are one of polyamide yarns or polyester yarns.

14. The fabric according to claim 1, wherein at least some of the MD yarns and CD yarns have one of a circular cross-sectional shape, a rectangular cross-sectional shape and a non-round cross-sectional shape.

15. A fabric comprising:

a first layer having machine direction (MD) yarns and cross-direction (CD) yarns interwoven therewith; and

a second layer having machine direction (MD) yarns and cross-direction (CD) yarns interwoven therewith;

wherein a plurality of pairs of first type of binders each having a first binder and a second binder are interwoven with said first and second layers, and

wherein said first and second binders of at least one pair are interwoven with said first and second layers so as to pass over at least one same yarn on an outer surface of said first layer.

16. The fabric according to claim 15, wherein the fabric is usable in a papermaking process and wherein the first layer is a paper side upon which cellulosic fiber is deposited during the papermaking process.

17. The fabric according to claim 16, wherein said first binder and said second binder of said at least one pair pass over two same yarns on the outer surface of said first or paper side layer within a repeat pattern.

18. The fabric according to claim 15, further comprising a plurality of pairs of second type of binders each being interwoven with said first and second layers wherein a weaving pattern of the second type of binders is different from that of the first type of binders.

19. The fabric according to claim 18, wherein neither binder of any pair of the second type of binders pass over at least one same yarn on the outer surface of said first layer.

20. The fabric according to claim 18, wherein the pairs of the first type of binders and the pairs of the second type of binders are arranged in an alternate manner such that a pair of a respective one of the first type of binders is located between two pairs of the second type of binders and a pair of a respective one of the second type of binders is located between two pairs of the first type of binders.

21. The fabric according to claim 20, wherein each of a number of the pairs of the first and second type of binders are respectively located between two CD yarns such that a pair of the first type of binders is located between two respective CD yarns one of which is located adjacent to a pair of the second type of binders, which is located adjacent to another CD yarn, which is located adjacent to another pair of the first type of binders, and so forth.

22. The fabric according to claim 16, wherein the first or paper side layer has a plain weave pattern.

23. The fabric according to claim 22, wherein the second layer is woven in one of a four, five, and six-shed weave pattern.

24. The fabric according to claim 16, wherein the fabric is usable in at least one of a forming, pressing, and drying operation of the papermaking process.

25. The fabric according to claim 15, wherein the MD and CD yarns are monofilament yarns.

26. The fabric according to claim 15, wherein at least some of the MD yarns are one of polyamide yarns or polyester yarns.

27. The fabric according to claim 15, wherein at least some of the CD yarns are one of polyamide yarns or polyester yarns.

28. The fabric according to claim 15, wherein at least some of the MD yarns and CD yarns have one of a circular cross-sectional shape, a rectangular cross-sectional shape and a non-round cross-sectional shape.

29. The fabric according to claim 15, wherein first type of binders are CD type yarns.

30. The fabric according to claim 29, wherein said first and second binders of the at least one pair are interwoven with said first and second layers so as to pass over at least one same MD yarn on an outer surface of said first layer.

31. The fabric according to claim 15, wherein first type of binders are MD type yarns.

32. The fabric according to claim 31, wherein said first and second binders of the at least one pair are interwoven with said first and second layers so as to pass over at least one same CD yarn on an outer surface of said first layer.