Abstract: A cleaning system for cleaning a band circulating in a paper making machine; the system comprising: at least one detecting device configured to detect at least one parameter indicative of the cleaning conditions of the band on at least one portion of the band; at least one cleaning device provided with at least one nozzle to create a jet of a cleaning fluid; the nozzle being arranged so that the jet of cleaning fluid is directed towards the band; a control device configured to regulate the cleaning device on the basis of the at least one parameter indicative of the cleaning of the band.

Abstract: A woven fabric for use in a machine to produce a fiber web, such as a tissue fiber web. A paper side of the fabric has warp yarns and weft yarns interwoven in a weave pattern, and twill lines, each formed by neighboring warp yarn flotations. Each warp yarn flotation of the weave pattern that contributes to the formation of the twill lines passes over a first weft yarn, which passes over a first warp yarn that directly neighbors the warp yarn flotation on a first side and passes below a second warp yarn that directly neighbors the warp yarn flotation on a second side opposite the first side. The warp yarn flotation also passes over a second weft yarn that directly neighbors the first weft yarn, and the second weft yarn passes below the first warp yarn and over the second warp yarn.

Abstract: An industrial textile (6) for manufacturing a fibrous web has first machine direction yarns (1) on the front side (7) which bind to first cross-machine direction yarns (4) in a first pattern, while second machine direction yarns (2) on the back side bind to second cross-machine direction yarns (5) in a second pattern. Third machine direction yarns (3) bind to the first cross-machine direction yarns (4) and the second cross-machine direction yarns (5) in a third pattern. The third pattern has at least one interlacing point (71) on the front side where one of the third machine direction yarns (3) passes over one of the first cross-machine direction yarns (4) and at least one interlacing point (72) on the back side (8) where the same third machine direction yarn (3) passes under one of the second cross-machine direction yarns (5).

Abstract: A forming belt for use in making a nonwoven substrate. The forming belt includes a first surface defining a plane of the first surface and an axis parallel to a longitudinal direction corresponding to a machine direction when in use. A plurality of discrete belt patterns can be ordered in sequential relationship with respect to the longitudinal direction. At least a majority of the plurality of discrete belt patterns can include a discrete belt pattern overall area, a first forming zone having a first pattern of three-dimensional raised elements extending outwardly from the plane of the first surface and a second forming zone having a second pattern of three-dimensional raised elements extending outwardly from the plane of the first surface. The first forming zone can have a first air permeability value and the second forming zone can have a second air permeability value. The first air permeability value can be different from the second air permeability value.

Abstract: A molded polyurethane screen including a body having opposite side edge portions, upper and lower edge portions, an upper surface and a lower surface, first members extending between the side edge portions and the second members extending between the lower edge portion and the upper edge portion, third members substantially parallel and extending transversely between the side edge portions and having multiple first members therebetween, the fourth members substantially parallel and extending transversely between the lower edge portion and the upper edge portion and having multiple second members therebetween, reinforcement members molded integrally with the third and fourth members.

Abstract: A molded polyurethane vibratory screen including a body having opposite side edge portions, upper and lower edge portions, an upper surface and a lower surface, first members extending between the side edge portions and the second members extending between the lower edge portion and the upper edge portion, third members substantially parallel and extending transversely between the side edge portions and having multiple first members therebetween, the fourth members substantially parallel and extending transversely between the lower edge portion and the upper edge portion and having multiple second members therebetween, reinforcement members molded integrally with the third and fourth members.

Abstract: A process for preparing a seam area for a paper machine clothing (PMC) base fabric includes the steps of: forming the PMC base fabric by flat-weaving, the PMC base fabric including warp yarns extending in machine direction and weft yarns extending in cross machine direction and interwoven with the warp yarns, the weft yarns including first weft yarns and a second weft yarn, the second weft yarn being a multifilament yarn, the warp yarns, the first weft yarns, and the multifilament yarn being woven together on a loom in an original weaving process, the multifilament yarn being positioned in an anticipated seam area; and folding over the PMC base fabric, after weaving the multifilament yarn with the warp yarns, to form a seam loop of the PMC base fabric such that the multifilament yarn is a first one of the weft yarns on a sheet side of the seam loop.

Abstract: An industrial fabric, belt or sleeve and a method of making the fabric, belt or sleeve are disclosed. The industrial fabric, belt or sleeve is produced by spirally winding strips of polymeric material, such as an industrial strapping or ribbon material, around two rolls in a side-to-side manner in which a gap between adjacent edges is formed. A second material, for example a gap filler material, is placed between the adjacent edges, and the adjoining edges are joined by melting the filler material, strips of polymeric material, or both. The gap filler material can have a specific cross-sectional shape corresponding to the gap.

Abstract: A fabric for a papermaking machine is configured as a belt, the two side edges of which are configured in each case as closed lines. Furthermore, the belt is formed in one layer from a solid material and has pores which form passages between the two surfaces of the belt. The belt has regions with a width of approximately 400 micrometers (?m) or less. These regions extend in the longitudinal direction over the entire circumference of the belt, transversely with respect to the side edges, and include no pores formed therein.

Abstract: A papermaking machine for the production of a fibrous web including a plurality of rollers and a structured fabric moving along the rollers. The structured fabric includes a plurality of weft yarns and a plurality of warp yarns woven with the plurality of weft yarns to produce a weave pattern, the plurality of warp yarns being a plurality of paired warp yarn sets. Each paired warp yarn set including a first warp yarn and a second warp yarn. Within the weave pattern the first warp yarn forms a float over at least four weft yarns and weaves with a single weft yarn immediately adjacent with the float. The second warp yarn having an inverse pattern to the first warp yarn, with the second warp yarn weaving with another single weft yarn that is not adjacent to the single weft yarn with which the first warp yarn is woven.

Abstract: A nonwoven fabric includes a plurality of through voids, where each of the voids has a first opening associated with a top surface of the fabric and a first raised edge circumferentially adjacent to the first opening. The voids may each further include a second opening associated with a bottom surface of the fabric and a second raised edge circumferentially adjacent to the second opening, such that the first opening may have a surface area that is larger than or the same as the second opening.

Abstract: A clothing for a paper machine is configured as a film-shaped continuous band that is closed in the circumferential direction and that has a perforated useful area and at least one edge extending between the useful area and a lateral edge. The edge area has a perforation density lower than the perforation density of the useful area.

Abstract: An industrial fabric, belt or sleeve and a method of making the fabric, belt or sleeve are disclosed. The industrial fabric, belt or sleeve is produced by spirally winding strips of polymeric material, such as an industrial strapping or ribbon material, and joining the adjoining sides of the strips of material using ultrasonic welding or laser welding techniques. The fabric, belt or sleeve may then be perforated using a suitable technique to make it permeable to air and/or water.

Abstract: A fabric structure used to make textured nonwoven products, the structure being permeable to air and water, comprising a web contact surface having a pattern including a series of raised land areas and corresponding depressions adapted to impart a texture to the nonwoven product produced thereon, and a series of through voids adapted to allow passage of both water and/or air from the fabric surface into and/or through the structure.

Abstract: A triple papermaking fabric includes a set of warp machine direction top yarns; a set of weft cross machine direction top yarns interwoven with the top MD yarns to form a top fabric layer; a set of bottom MD yarns; a set of bottom CMD yarns interwoven with the bottom MD yarns to form a bottom fabric layer; and a set of binding yarns arranged in the cross machine direction and interwoven with the top MD yarns and binding the top layer to the bottom layer. The binding yarns are arranged in pairs between two adjacent top CMD yarns, and in a fabric repeat unit at least one binding yarn of each pair is interwoven with at least one bottom MD yarn. The ratio between weft yarns and warp yarns is 4:2.

Abstract: According to one aspect, the invention relates to a method for producing a watermark element (10) for forming a shadow watermark image in a substrate by means of dewatering of a fibrous suspension, wherein the watermark element (10) comprises a body with a relief side (12) having a relief (14) and a dewatering side (16) positioned opposite the relief side, perforations (18) being provided at least in the relief (14), a perforation (18) comprising a channel (20) with a channel inlet (21) at the relief side (12) and a channel outlet (22) at the dewatering side (16), which method includes the steps of forming perforations in a body in a mechanical manner and introducing a relief in the intended relief side, the perforations (18) being formed in such a way that the dewatering capacity, expressed as the open surface area of the channel inlet(s) per unit of surface area of the relief, is dependent on the height (h) of the channel inlet (21) with respect to the dewatering side (16), it being the case that the higher

Abstract: The present invention relates to a method of producing a cellulose-fiber flat structure, the method including obtaining a cellulose-fiber flat structure by filtering a fine cellulose-fiber dispersion containing fine cellulose fibers having an average fiber diameter of 4 to 100 nm, using a filter material having a water permeability of not more than 100 ml/m2·s and an initial tensile modulus of 20 MPa or greater. The present invention is able to produce a cellulose-fiber flat structure by efficiently recovering fine cellulose fibers from a dispersion containing fine cellulose fibers having an average fiber diameter at the nano level. The method of producing a cellulose-fiber flat structure can also be applied to a continuous process.

Abstract: A fabric belt for a machine for producing a web of fibrous material includes: a first fabric layer including a web contact side and formed by interweaving a plurality of warps with a plurality of wefts; and a second fabric layer positioned below said first fabric layer and formed by interweaving a plurality of warps with a plurality of wefts, a first ratio of a number of said plurality of warps of said first fabric layer to a number of said plurality of warps of said second fabric layer being greater than 1, a second ratio of a number of said plurality of wefts of said first fabric layer to a number of said plurality of wefts of said second fabric layer being greater than 1.

Abstract: The invention disclosed herein relates to the use of laser energy to weld or melt selected locations in papermachine clothing (“PMC”) and other industrial and engineered fabrics. The invention also relates to an improved seam for a papermaker or other industrial fabric that has properties such as strength, durability, openness, adequate number of support points, and fiber support index (FSI) essentially the same as the fabric body. The invention also relates to a fabric having a durable seam, wherein the seam width as measured in the MD is a fraction of the width of a normal seam or a seam that is formed using a conventional technique of equal strength.

Abstract: A fabric belt for producing a web material, the fabric belt including a first layer on a web material side and a second layer on a machine side of the belt. The layers each having a basic weave connected to each other by binding threads extending in a binding thread direction. The layers having base binding threads extending both in and transverse to the binding thread direction. The binding threads form binding segments which are successive in the binding thread direction in the second layer. The binding threads are tied off on one base binding thread of the second layer extending transversely to the binding thread direction. The binding segments formed in the second layer are arranged in a binding pattern repeat extended in and transverse to the binding thread direction along a binding segment diagonal progressing obliquely to the binding thread direction and transverse to the binding thread direction.

Abstract: Press felts for papermaking include a batt fiber layer and a base fabric. The batt fiber layer is integrated into the base fabric. The base fabric includes a ground warp yarn, a ground weft yarn, and an additional warp yarn. The ground warp yarn and the ground weft yarn include monofilament yarns, and the additional warp yarn includes a material different from a material forming the ground warp yarn. The additional warp yarn is arranged so that, when the base fabric is viewed in cross-section in a warp yarn direction, the additional warp yarn ascends toward a wet paper web-side surface of the base fabric and descends toward a roll-side surface of the base fabric, relative to the at least one ground warp yarn.

Abstract: A patterned framework for a papermaking belt is disclosed. The patterned framework has a continuous network region having a pattern formed comprising a plurality of tessellating unit cells and a plurality of discrete regions isolated from one another by the continuous network region. Each cell has a center and at least two continuous land areas extending in at least two directions from the center. At least one of the continuous land areas at least bifurcates to form a continuous land area portion having a first width before the bifurcation and at least two continuous land area portions having a second width after the bifurcation in continuous communication with the continuous land area portion. Removing and drying the embryonic web of paper fibers disposed upon the patterned framework provides a paper product having a residual water value, RW, of less than 0.12 g.

Abstract: A belt for a machine for the production of a fibrous web, in particular paper or cardboard, the belt including a carrier structure, a first material which forms a first pattern on at least one side of the carrier structure such that a portion of the carrier structure remaining exposed, and a second material which forms a second pattern, the second pattern being applied onto the first pattern, wherein the second pattern is completely disposed within the first pattern and a method for producing same.

Abstract: A nonwoven fabric includes a plurality of through voids, where each of the voids has a first opening associated with a top surface of the fabric and a first raised edge circumferentially adjacent to the first opening. The voids may each further include a second opening associated with a bottom surface of the fabric and a second raised edge circumferentially adjacent to the second opening, such that the first opening may have a surface area that is larger than or the same as the second opening.

Abstract: A sieve for the wet-end section of a paper machine is described, in which the sieve has been compressed by at least one of increased temperature, pressure and/or moisture. Such a treatment leads to a sieve which has at least one side wherein the thread floats and knuckles are reshaped and the sieve presents at least one substantially flatter surface for the production of paper. This process does not cause any physical damage to the surface of the sieve, as current techniques of abrasively polishing the surface do, and therefore leads to cloths with improved properties and lifetimes.

Abstract: An industrial fabric, belt or sleeve and a method of making the fabric, belt or sleeve are disclosed. The industrial fabric, belt or sleeve is produced by spirally winding strips of polymeric material, such as an industrial strapping or ribbon material, and joining the adjoining sides of the strips of material using ultrasonic welding or laser welding techniques. The fabric, belt or sleeve may then be perforated using a suitable technique to make it permeable to air and/or water.

Abstract: A structured papermaking fabric for making a bulky tissue web, including: a web facing side and an opposite side, the web facing side including a structure formed by interweaving of transverse yarns with longitudinal yarns, the structure including a plurality of pattern areas being regularly distributed on the web facing side and each of said pattern area being surrounded by an edge area, said pattern areas are woven in a plain weave and each of said edge areas including at least one longitudinal and at least one transverse edge segment, said longitudinal edge segment being formed by weaving of a longitudinal yarn over at least four, preferably at least five, consecutive transverse yarns, said transverse edge segment being formed by weaving of a transverse yarn over at least four consecutive longitudinal yarns.

Abstract: The present invention provides a multilayer multiaxial woven fabric for a papermachine having a reduced interference pattern and accordingly improved dewatering uniformity. The present invention also provides a method of forming such multilayer multiaxial fabric.

Abstract: A fabric for a papermaking machine, the fabric including a machine facing side and a web facing side having pockets formed by warp and weft yarns.

Abstract: The present disclosure is directed toward a papermaking belt having a patterned framework having a continuous network region and a plurality of discrete deflection conduits isolated from one another by the continuous network region. The continuous network region has a pattern formed therein by a plurality of tessellating unit cells. Each cell has a center and at least two continuous land areas extending in at least two directions from the center. At least one of the continuous land areas at least bifurcates to form a continuous land area portion having a first width before bifurcation and at least two continuous land area portions having a second width after bifurcation where the at least two continuous land area portions are disposed at an angle ranging from about 1 degree to about 180 degrees relative to each other.

Abstract: The present disclosure is directed toward a papermaking belt having an embryonic-web-contacting surface for carrying an embryonic web of paper fibers and a non-embryonic-web-contacting surface opposite the embryonic-web-contacting surface. The papermaking belt has a patterned framework having a continuous network region and a plurality of discrete deflection conduits isolated from one another by the continuous network region. The continuous network region has a pattern formed therein by a plurality of tessellating unit cells. Each cell has a center and at least two continuous land areas extending in at least two directions from the center. At least one of the continuous land areas at least bifurcates to form a continuous land area portion having a first width before the bifurcation and at least two continuous land area portions having a second width after the bifurcation.

Abstract: The invention relates to a fabric belt for a machine for the production of web material, particularly paper or cardboard, including a first fabric layer providing a web material contact side and formed by way of the interweaving of warps with wefts, and a second fabric layer positioned below the first fabric layer and formed by way of the interweaving of warps with wefts, wherein the ratio of the number of warps of the first fabric layer to the number of warps of the second fabric layer is greater than 1.

Abstract: A clothing for supporting a wet paper web for dewatering is provided, comprising a dewatering fabric extending in a machine direction and formed only from a woven material to have a single, substantially consistent, permeability. A pair of laterally-spaced strip portions extend along the dewatering fabric in the machine direction, with each being substantially and consistently impermeable to air and forming a substantially and consistently smooth non-water-retaining surface. The strip portions define a permeable web-carrying portion of the dewatering fabric therebetween, wherein the paper web carried thereby extends over the entire width thereof. The permeable web-carrying portion allows air to flow therethrough, exclusively of the impermeable strip portions, such that the wet paper web carried only by the permeable web-carrying portion is dewatered. The width of the permeable web-carrying portion thereby defines the width of the wet paper web dried thereon. Associated systems and methods are also provided.

Abstract: A papermaker's fabric for use as a forming fabric. The fabric may include bondable or meltable monofilament yarns which may be formed from materials that retain substantial strength and tenacity after thermal treatment. Further, the remaining yarns in the forming fabric may be formed from materials that have a higher melting temperature than the monofilament material that will be thermally bonded or melted.

Abstract: The present invention provides a fabric for a papermaking machine. The fabric includes a machine facing side and a web facing side having pockets formed by warp and weft yarns. Each pocket is defined by four sides on the web facing side, three of the four sides each being formed by a knuckle of a single yarn, and one of the sides being formed by a knuckle of a weft and of a warp yarn, wherein the weft yarn also defines a bottom surface of the pocket.

Abstract: A drying wire provided with an independent top fabric and bottom fabric. The bottom fabric is woven from longitudinal and cross direction monofilament yarns. The top fabric is woven from longitudinal yarns and shapeable cross direction yarns. The shapeable yarns make the structure of the top fabric denser and increase the contact surface area and the number of contact points. On the other hand, the bottom fabric is also smooth, wherefore it has good aerodynamic properties.

Abstract: A fabric for a papermaking machine that includes a machine facing side and a web facing side comprising pockets formed by warp and weft yarns is provided. Each pocket is defined by four sides on the web facing side, each of the four sides is formed by a knuckle of a single yarn that passes over only two consecutive yarns to define the knuckle.

Abstract: Fabric for making a bulky web. The fabric includes a machine facing side and a web facing side comprising pockets formed by more MD yarns than CD yarns. Adjacent pockets are offset from each other and are defined by MD and CD knuckles. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: A fabric for a papermaking machine is provided. The fabric includes a machine facing side and a web facing side comprising pockets formed by warp and weft yarns. Each pocket is defined by four sides of the web facing side. Two of the four sides are each formed by a warp knuckle of a single warp yarn that passes over at least three consecutive weft yarns to define the warp knuckle. The other two of the four sides are each formed by a weft knuckle of a single weft yarn that passes over two consecutive warp yarns to define the weft knuckle.

Abstract: The present invention provides a multilayer multiaxial fabric for a paper machine having a reduced interference pattern and accordingly improved dewatering uniformity. The present invention also provides a method of forming such a multilayer multiaxial fabric.

Abstract: A papermaker's fabric for use as a forming fabric. The fabric may include bondable or meltable monofilament yarns which may be formed from materials that retain substantial strength and tenacity after thermal treatment. Further, the remaining yarns in the forming fabric may be formed from materials that have a higher melting temperature than the monofilament material that will be thermally bonded or melted.

Abstract: A method for manufacturing a papermaker's or industrial fabric requires the application of a polymeric resin material onto preselected locations on a base substrate using an array which deposits the polymeric resin material in droplets having an average diameter of 10? (10 microns) or more. The preselected locations, for example, may be knuckles formed by the interweaving of the yarns making up the fabric or interstices between the yarns. The purpose of such precise application of the resin is to control functional properties of the fabric, such as permeability and abrasion resistance. The polymeric resin material is set by means appropriate to its composition, and, optionally, may be abraded to provide the polymeric resin material above the surface plane of the base substrate with a uniform thickness.

Abstract: A papermaking belt for making a fibrous structure having: a framework having: a first layer and a second layer, each of the first and second layers having a top surface, a bottom surface opposite to the top surface, and the first layer having a plurality of deflection conduits extending in the Z-direction between the top and bottom surfaces of the first layer and structured to receive therein fibers of the fibrous structure; the first layer comprising a substantially continuous, substantially discontinous or substantially semicontinuous patterned network; wherein the second layer comprises a plurality of discrete protuberances; and the top surface of the second layer forming the web-side of the framework; and a reinforcing element having: a paper facing side and a machine facing side opposite to the paper facing side; wherein the second layer at least partially penetrates the reinforcing element or the bottom surface of the second layer is coplanar with the bottom surface of the first layer.

Abstract: The invention discloses herein the use of short wavelength infrared energy to selectively control the locations where thermal fusing or bonding takes place or does not take place in an industrial fabric. Also, the method involves forming a mushroom cap on the tail of a fiber/yarn or monofilament and also creating a surface pattern formation.

Abstract: An apparatus for the production of a fibrous web, in particular a paper web or paperboard web, having a belt formed from individual threads which are connected together, in particular woven together, whereby the surface of the threads is constructed to be structured in order to improve the paper quality and the production flow.

Abstract: A laminated on-machine-seamable industrial fabric made from a flat woven full width base fabric layer wherein the base fabric layer is folded inwardly and flattened to produce a fabric with seaming loops disposed at the two widthwise edges.

Abstract: Forming fabric for making a bulky web. The fabric includes a machine facing side and a web facing side having pockets formed by warp and weft yarns. A bottom of the pockets is formed an exchange of a different number of the warp and the weft yarns. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: Forming fabric for making a bulky web. The fabric includes a machine facing side and a web facing side having pockets formed by warp and weft yarns. The pockets are defined by more than four sides on an upper plane of the web facing side. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: Forming fabric for making a bulky web. The fabric includes a machine facing side and a web facing side comprising pockets formed by warp and weft yarns. A bottom of the pockets is formed by an exchange of the warp and weft yarns. A contact plane of the web facing side includes elongated warp knuckles. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: Forming fabrics for making tissue webs are provided with structural icons on the side of the fabric that does not contact the tissue web during formation. The resulting tissue web has good formation without pinholes, yet contains a watermark corresponding to the shape of the structural icon.