Seam press fabric
A press fabric includes a substantially flat inner sleeve having first and second ends; and an outer sleeve around the inner sleeve and comprising at least one machine direction yarn wound around the inner sleeve and defining first and second seam loops at the first and second ends of the inner sleeve. A method for making the fabric is also disclosed.
1. A press fabric, comprising:
a substantially flat inner sleeve having first and second ends; and
an outer sleeve mounted upon and around the inner sleeve, said outer sleeve being nonwoven, including a plurality of continuous machine direction yarns wound around and mounted upon the inner sleeve, having an absence of any cross-machine direction yarn, and forming first and second seam loops by each of the plurality of continuous machine direction yarns at the first and second ends of the inner sleeve.
2. The fabric of claim 1 , wherein the first and second seam loops are secured to each other.
3. The fabric of claim 1 , wherein the at least one machine direction yarn is spirally wound around the inner sleeve.
4. The fabric of claim 1 , wherein the inner sleeve is a scrim.
5. The fabric of claim 1 , wherein the inner sleeve is selected from the group consisting of single layer woven fabric, non-woven fabric, joined spunbonded fibers, film material and combinations thereof.
6. The fabric of claim 1 , wherein the inner sleeve has a greater number of cross direction yarns than machine direction yarns.
7. The fabric of claim 1 , wherein the outer sleeve consist essentially of machine direction yarns, whereby the machine direction yarns are substantially free of knuckles from cross direction yarns.
8. The fabric of claim 1 , wherein the fabric comprises a four layer structure having two woven inner layers and two machine direction only outer layers.
9. The fabric of claim 8 , wherein the outer layers are not interwoven with the inner layers.
10. The fabric of claim 1 , further comprising at least one batt layer bonded to at least one of the inner sleeve and the outer sleeve.
11. A method for making a press fabric, comprising the steps of:
providing an outer sleeve which is nonwoven, includes a plurality of continuous machine direction yarns, and has an absence of any cross-machine direction yarn;
winding the plurality of continuous machine direction yarns around, and mounting the plurality of continuous machine direction yarns upon, an inner sleeve having first and second opposite ends such that each of the plurality of continuous machine direction yarns forms first and second seam loops at the first and second opposite ends;
flattening the inner sleeve; and
joining the first and second seam loops.
12. The method of claim 11 , wherein the winding step comprises spirally winding the at least one machine direction yarn around the inner sleeve.
13. The method of claim 11 , further comprising providing the inner sleeve in an open position, and wherein the winding step comprises winding the at least one machine direction yarn around the sleeve in the open position.
14. The method of claim 13 , wherein the step of providing the inner sleeve comprises providing an inner base fabric having a length of about twice as long as a desired length of the final fabric; and joining ends of the inner base fabric to define the inner sleeve.
15. The method of claim 14 , wherein the inner base fabric has a greater number of cross direction yarns per inch than machine direction yarns per inch.
16. The method of claim 11 , wherein the inner base fabric comprises a scrim.
17. The press fabric of claim 1 , wherein the outer sleeve includes a plurality of the machine direction yarn and has an absence of any cross-direction yarn.
18. The method of claim 11 , wherein a plurality of the machine direction yarn forms an outer sleeve which has an absence of any cross-direction yarn.