A fabric for a paper machine includes a base having a paper side and a roll side; a roll side batt layer attached to the roll side of the base; and a plurality of yarns embedded in the roll side batt layer. The yarns can be mono or multifilament yarns, and can be yarn cores in elastomer sheathes.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
A detailed description of preferred embodiments of the invention follows with reference to the attached drawings wherein:
FIG. 1 is a cross section taken through a prior art press fabric; and
FIG. 2 is a cross section taken through a fabric according to the present invention.
Claims
1. A fabric for a paper machine, comprising:
a base having a paper side and a roll side;a roll side batt layer attached to the roll side of the base; anda plurality of yarns embedded in the roll side batt layer.
2. The fabric of claim 1, wherein the plurality of yarns comprises a yarn core in a sheath.
3. The fabric of claim 2, wherein the yarn cores are nylon or polyester multifilament yarns.
4. The fabric of claim 2, wherein the sheath comprises a low melt resin.
5. The fabric of claim 4, wherein the low melt resin comprises a thermoplastic polyurethane elastomer.
6. The fabric of claim 1, wherein the plurality of yarns are present on the fabric in an amount of between 4 and 24 yarns per inch.
7. The fabric of claim 1, wherein the plurality of yarns are present on the fabric in an amount between 6 and 12 yarns per inch.
8. The fabric of claim 1, wherein each of the plurality of yarns has a diameter of between 0.3 mm and 1.2 mm.
9. The fabric of claim 1, wherein each of the plurality of yarns has a diameter of between 0.5 mm and 1.0 mm.
10. The fabric of claim 1, wherein the fabric has a seam.
11. The fabric of claim 1, wherein the yarns are cross head extruded yarns.
12. The fabric of claim 1, wherein the yarns are attached to the roll side of the base.
13. The fabric of claim 12, wherein the yarns are fused to the roll side batt layer.
14. A method for making a fabric for a paper machine, comprising the steps of:
providing a fabric comprising a base having a paper side and a roll side; and a roll side batt layer attached to the roll side of the base embedding a plurality of yarns embedded in the roll side batt layer; andbonding the yarns to the roll side batt layer.
15. The method of claim 14, wherein the plurality of yarns comprises a yarn core in a sheath.
16. The method of claim 15, wherein the bonding step comprises thermally fusing the sheath to the roll side batt.
Patent Application
20070163741
