Abstract: A fabric is treated by applying a nanoparticle type coating to improve their resistance to contamination by foreign matter. The coating is applied during fabric manufacture and cured during heat setting. Alternatively, the coating applied or renewed by utilizing an existing shower or locating a spray boom or other suitable coating application device to apply the coating to the fabric in a controlled, uniform manner. Prior to application of the coating, the fabric is first thoroughly cleaned such as by showering or spraying, and then dried. Following controlled application of the coating, any excess material is removed by a suitable means, such as by vacuum, and the remaining coating on the fabric is then cured, either by utilizing the ambient heat of the equipment or by a portable bank of heaters. In this manner, the fabric does not have to be removed from the machine in order to apply or renew the contaminant resistant coating.

Abstract: A fabric having a first woven fabric layer forming a paper side and made of first threads, and a second woven fabric layer made of second threads, the two woven fabric layers being connected by binder threads belonging to the first woven fabric layer such that at binding points the respective binder thread binds with one first thread on the paper side, then changes to the second woven fabric layer and binds with at least two second threads and then returns to the first woven fabric layer again and binds with a first thread on the paper side, wherein at binding points only one first thread is not bound by the said binder thread.

Abstract: A fabric is treated by applying a nanoparticle type coating to improve their resistance to contamination by foreign matter. The coating is applied during fabric manufacture and cured during heat setting. Alternatively, the coating applied or renewed by utilizing an existing shower or locating a spray boom or other suitable coating application device to apply the coating to the fabric in a controlled, uniform manner. Prior to application of the coating, the fabric is first thoroughly cleaned such as by showering or spraying, and then dried. Following controlled application of the coating, any excess material is removed by a suitable means, such as by vacuum, and the remaining coating on the fabric is then cured, either by utilizing the ambient heat of the equipment or by a portable bank of heaters. In this manner, the fabric does not have to be removed from the machine in order to apply or renew the contaminant resistant coating.

Abstract: A papermaking fabric is treated by applying a nanoparticle type coating to improve their resistance to contamination by foreign matter in the papermaking system. The coating is applied during fabric manufacture and cured during heat setting. Alternatively, the coating applied or renewed by utilizing an existing shower or locating a spray boom or other suitable coating application device in the dryer section to apply the coating to the fabric in a controlled, uniform manner. Prior to application of the coating, the fabric is first thoroughly cleaned such as by showering or spraying, and then dried. Following controlled application of the coating, any excess material is removed by a suitable means, such as by vacuum, and the remaining coating on the fabric is then cured, either by utilizing the ambient heat of the dryer section or by a portable bank of heaters. In this manner, the fabric does not have to be removed from the machine in order to apply or renew the contaminant resistant coating.

Abstract: A fabric having a first woven fabric layer forming a paper side and made of first threads, and a second woven fabric layer made of second threads, the two woven fabric layers being connected by binder threads belonging to the first woven fabric layer such that at binding points the respective binder thread binds with one first thread on the paper side, then changes to the second woven fabric layer and binds with at least two second threads and then returns to the first woven fabric layer again and binds with a first thread on the paper side, wherein at binding points only one first thread is not bound by the said binder thread.

Abstract: A fabric for forming a fibrous paper web having an embossed surface is provided that includes at least longitudinal and transverse threads interwoven with one another in a weave repeat defining a machine side and a paper side. Some of the longitudinal threads form embossing threads having projecting paper side floats on the paper side of the fabric passing over more than one transverse thread. The fabric includes at least a first woven fabric layer forming the paper side on its outside and having longitudinal and transverse first threads interwoven with one another and a second woven fabric layer forming the machine side on its outside and having longitudinal and transverse second threads interwoven with one another. At least some of the longitudinal second threads form embossing threads, which penetrate the first woven fabric layer for forming the paper side floats and connect the two woven fabric layers.

Abstract: The invention relates to a paper machine belt, some of the threads or all of the threads being made partially or entirely of a bioplastic.

Abstract: A woven papermaker fabric having a first woven fabric layer made of first threads and having a second woven fabric layer made of second threads, the two woven fabric layers being connected by binder threads formed by structural second threads at binder points and having knuckles having peaks constituting a peak plane parallel to a paper side plane, and the first threads forming knuckles with concave inner bends, the points of which lying nearest to the paper side plane constituting an inner plane, wherein the tension of the first threads extending transversely to the binder threads is such that the peak plane is nearer to the paper side plane than the inner plane thereby causing lateral deflections of at least one of the first threads.

Abstract: A woven fabric band having a first and a second woven fabric layer having second longitudinal and second transverse threads, the outer side of the second woven fabric layer being formed by floats of longitudinal threads, wherein the longitudinal threads form a first longitudinal thread group with outer longitudinal threads and a second longitudinal thread group with inner longitudinal threads and that the outer longitudinal threads form the outer side of the second layer and the inner longitudinal threads extend within the band.

Abstract: A papermaker's fabric including at least one system of warp yarns interwoven with at least first and second systems of weft yarns, with the weft yarns of the first system of weft yarns having a vertical dimension that is greater than a vertical dimension of the weft yarns of the second system. The fabric has a papermaking surface and a machine side surface, and in the papermaking surface, the yarns of the first system of weft yarns are interwoven with the warp yarns to provide groups of four weft yarn floats which form four corners of a box shape, the yarns of the second system of weft yarns are interwoven with the warp yarns so as to pass through the bottom of the box shape, and further provide support areas in pockets located adjacent to the box shapes, and at least one yarn from the second system of weft yarns interweaves with the warp yarns to occupy space in a center plane of the fabric so as to restrict or retard drainage and thereby increase a center plane resistance of the fabric.

Abstract: A papermaking fabric is treated by applying a nanoparticle type coating to improve their resistance to contamination by foreign matter in the papermaking system. The coating is applied during fabric manufacture and cured during heat setting. Alternatively, the coating applied or renewed by utilizing an existing shower or locating a spray boom or other suitable coating application device in the dryer section to apply the coating to the fabric in a controlled, uniform manner. Prior to application of the coating, the fabric is first thoroughly cleaned such as by showering or spraying, and then dried. Following controlled application of the coating, any excess material is removed by a suitable means, such as by vacuum, and the remaining coating on the fabric is then cured, either by utilizing the ambient heat of the dryer section or by a portable bank of heaters. In this manner, the fabric does not have to be removed from the machine in order to apply or renew the contaminant resistant coating.

Abstract: A papermaking fabric is treated by applying a nanoparticle type coating to improve their resistance to contamination by foreign matter in the papermaking system. The coating is applied during fabric manufacture and cured during heat setting. Alternatively, the coating applied or renewed by utilizing an existing shower or locating a spray boom or other suitable coating application device in the dryer section to apply the coating to the fabric in a controlled, uniform manner. Prior to application of the coating, the fabric is first thoroughly cleaned such as by showering or spraying, and then dried. Following controlled application of the coating, any excess material is removed by a suitable means, such as by vacuum, and the remaining coating on the fabric is then cured, either by utilizing the ambient heat of the dryer section or by a portable bank of heaters. In this manner, the fabric does not have to be removed from the machine in order to apply or renew the contaminant resistant coating.

Abstract: The invention relates to a woven fabric band having a first and a second woven fabric layer comprising second longitudinal and second transverse threads, the outer side of the second woven fabric layer being formed by floats of longitudinal threads, wherein the longitudinal threads form a first longitudinal thread group with outer longitudinal threads and a second longitudinal thread group with inner longitudinal threads and that the outer longitudinal threads form the outer side of the second layer and the inner longitudinal threads extend within the band.

Abstract: A double layer forming fabric for a papermaking machine is warp-tied, all the warp yarns comprising binder pairs which forming a single combined path in the paper side surface. The pair members exchange positions at an exchange point between successive path segments and are laterally displaced in relation to each other at and between each exchange point. For each successive pair, an order of insertion of the first and second members in relation to each other into the weave is inverted in relation to the order of insertion for members of the immediately preceding pair, such that each first member is adjacent to the first member of the adjacent pair at the closest exchange point, and each second member is adjacent to the second member of the adjacent pair at the closest exchange point. The fabric has improved drainage uniformity leading to improved paper formation and reduced sheet marking.

Abstract: A papermaker's fabric including at least one system of warp yarns interwoven with at least first and second systems of weft yarns, with the weft yarns of the first system of weft yarns having a vertical dimension that is greater than a vertical dimension of the weft yarns of the second system. The fabric has a papermaking surface and a machine side surface, and in the papermaking surface, the yarns of the first system of weft yarns are interwoven with the warp yarns to provide groups of four weft yarn floats which form four corners of a box shape, the yarns of the second system of weft yarns are interwoven with the warp yarns so as to pass through the bottom of the box shape, and further provide support areas in pockets located adjacent to the box shapes, and at least one yarn from the second system of weft yarns interweaves with the warp yarns to occupy space in a center plane of the fabric so as to restrict or retard drainage and thereby increase a CPR of the fabric.

Abstract: A double layer forming fabric for a papermaking machine is warp-tied, all the warp yarns comprising binder pairs which forming a single combined path in the paper side surface. The pair members exchange positions at an exchange point between successive path segments and are laterally displaced in relation to each other at and between each exchange point. For each successive pair, an order of insertion of the first and second members in relation to each other into the weave is inverted in relation to the order of insertion for members of the immediately preceding pair, such that each first member is adjacent to the first member of the adjacent pair at the closest exchange point, and each second member is adjacent to the second member of the adjacent pair at the closest exchange point. The fabric has improved drainage uniformity leading to improved paper formation and reduced sheet marking.

Abstract: A double layer papermakers' fabric that is particularly suitable for forming or through-air drying (TAD) of high bulk tissue and towel product is provided. The fabric includes a single warp yarn system interwoven with three weft yarn systems such that: a first of the weft yarn systems is located on the paper side (PS) surface of the fabric; a second of the weft yarn systems is located on the machine side (MS) surface of the fabric; and the third weft yarn system is located intermediate between the first and second weft yarn systems. The yarns of the first and second weft yarn systems are interwoven with the warp yarn system such that they are vertically stacked with respect to one another in the fabric.

Abstract: A multilayered papermakers' forming fabric comprises at least one set of machine direction (MD) warp yarns, at least a first set of cross-machine direction (CD) machine side layer weft yarns; and paper side layer weft yarns woven in a repeating pattern with at least some of the MD warp yarns. At least some of the paper side layer weft yarns comprise an array of bulk enhancing weft yarns each having a vertical dimension which exceeds a corresponding vertical dimension of each of the remaining paper side layer weft yarns in a ratio of at least 1.25:1. Selected weft yarns can have different float lengths in the paper side surface. The fabrics of the invention impart increased bulk for products such as towel or tissue without loss of other required characteristics.

Abstract: A machine side layer weave design for use in woven composite fabrics, particularly papermakers forming fabrics having differing weave designs on each planar surface is provided. The composite fabric is comprised of two sets of weft yarns interwoven with at least one system of warp yarns. A first set of weft yarns is interwoven with the at least one system of warp yarns to form the paper side layer, while the second set of weft yarns is interwoven with the at least one system of warp yarns to form the machine side layer. In each repeat of the machine side layer weave design, at least 50% of the warp yarns pass under two adjacent weft yarns on the machine side of the fabric to form a double warp knuckle, and each double warp knuckle is bounded on either side by a single warp knuckle formed on each of the first and second weft passed under by the double warp knuckle. Further, in each repeat of the weave, each weft yarn is passed under by two adjacent warp yarns to form two adjacent single warp knuckles.

Abstract: A single layer papermakers fabric comprises machine direction (MD) warp yarns interwoven with cross-machine direction (CD) weft yarns to a repeating weave pattern requiring N sheds in the loom, N being an integer and at least 4. Each warp yarn follows a path in the paper side surface comprising four segments in each pattern repeat. In each of the first and third segments, the warp yarn interweaves with three consecutive weft yarns to form a double warp knuckle, and in the second and fourth segments, the warp yarn forms respectively a first and second MD float having unequal float lengths, at least one of the MD floats being over at least N consecutive weft yarns. The fabrics provide high air permeability, and increased surface contact area, stability and seam strength, and are particularly suitable for use as forming fabrics and through air dryer fabrics for tissue and towel products.