Claims
- 1. An industrial fabric comprising a system of warp and weft yarns interwoven according to a predetermined pattern, wherein:
a) the warp and weft systems are each comprised of at least one set of yarns which are interwoven according to the predetermined pattern which forms a paper side planar surface and a machine side planar surface and which maintains the component yarns of each set in vertically stacked alignment throughout the fabric; b) the sets of warp and weft yarns are interwoven to provide diagonal apertures within the fabric; c) the air permeability of the fabric is at least about 7300 m3/m2/h; d) the warp fill of the fabric is at least 100%; e) the weft fill of the fabric is at least 75%; f) the predetermined pattern is selected so that the at least one set of warp yarns is interwoven with the at least one set of weft yarns so as to form warp yarn floats which pass over at least two weft yarns in the paper side planar surface without interweaving; and g) the height of the warp yarn floats above the paper side planar surface being from about (0.3 to 1.5)×h, where h is the thickness of the yarn.
- 2. A fabric according to claim 1 wherein the warp system is comprised of one set of yarns.
- 3. A fabric according to claim 1 wherein the warp system is comprised of two sets of yarns and the warp fill is between about 200% to about 220%.
- 4. A fabric according to claim 1 wherein the warp yarns have a substantially rectangular cross section.
- 5. A fabric according to claim 1 wherein the yarns comprising the sets of weft yarns are vertically stacked.
- 6. A fabric according to claim 3 wherein the yarns of one set are in stacked vertical relationship throughout the fabric.
- 7. A method of using an industrial fabric for through-air dryer sections of a paper machine for forming a paper sheet having increased bulk and a predetermined embossed pattern, comprising the steps of:
- 8. A method for manufacturing an industrial fabric for through-air dryer sections of a paper machine to provide increased bulk and a predetermined embossed pattern of a paper sheet comprising the steps of:
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This patent application is filed as a non-provisional patent application and claims the benefit of the filing date of the following US provisional patent application, which is relied upon and is incorporated by reference in its entirety in this application:
[0002] U.S. Provisional Application No. 60/304,063, entitled “Multilayer Through-Air Dryer Fabric,” filed on Jul. 9, 2001.
PCT Information
Filing Document |
Filing Date |
Country |
Kind |
PCT/US02/21531 |
7/9/2002 |
WO |
|
Provisional Applications (1)
|
Number |
Date |
Country |
|
60304063 |
Jul 2001 |
US |