Abstract:
A dewatering fabric for an ATMOS system or a TAD machine that includes a caliper of between approximately 0.1 mm and approximately 15 mm, a permeability value of between approximately 1 cfm and approximately 500 cfm, an overall density of between approximately 0.2 g/cm 3 and approximately 1.10 g/cm 3 , and a weight of between approximately 100 g/m 2 and approximately 3000 g/m 2 . A belt press for a paper machine can utilize the dewatering fabric. 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 translation:一种用于ATMOS系统或TAD机器的脱水织物,其包括约0.1mm至约15mm的厚度,介于约1cfm至约500cfm之间的渗透率值,约0.2g / cm 2之间的总密度 > 3和约1.10g / cm 3,重量在约100g / m 2和约3000g / m 2之间, / SUP>。 用于造纸机的带式压榨机可以利用脱水织物。 本摘要不旨在限定说明书中公开的发明,也不旨在以任何方式限制本发明的范围。
Abstract:
A papermaker's fabric, usable in the forming section of a paper machine, has first and second layers of cross-machine direction (CD) yarns interwoven with sets of machine-direction (MD) yarns. Each set has four pairs of MD yarns with each pair comprising a first MD yarn and a second MD yarn. The first and second MD yarns each cross between and weave with both the first and second layers of CD yarns. In the MD, each pair effectively produces a four- shed contour in the first layer and a two-shed contour in the second layer. Each pair is shifted in the CD, such that 4 pairs of MD yarns combine to effectively produce a four-shed contour in the CD in the first layer.
Abstract:
A process for producing tissue webs is disclosed. The process may include the step of partially dewatering a tissue web, subjecting the web to at least one deflection against a fabric, such as a coarse fabric, and then creping the web. During the process, after being dewatered, the tissue web is transferred from a transfer conveyor to the fabric using a pneumatic force, such as a suction force. In order to prevent liquids from rewetting the tissue web as the tissue web is being transferred to the fabric, the transfer conveyor is made from a material that inhibits or prevents liquids from flowing into the tissue web. For instance, in one embodiment, the transfer conveyor may comprise a felt comprised of small capillary materials. The felt may have an intake rate, for instance, of less than about 150 µL/s when wet, may have a mean free pore size of less than about 20 microns, and may have a minimum pore size of less than about 5 microns.
Abstract:
A method of seaming an on-machine-seamable multiaxial papermaker’s fabric to prevent yarn migration. The multiaxial fabric (22) is in the form of an endless loop flattened into two layers (40, 42) along fold lines (38). CD yarns (28) are removed from the folds (38) to create extended ravel areas. This leaves the MD yarns (26) unbound in the ravel areas. Seam loops (56) are then formed from the unbound MD yarns (26) at the folds (38). CD materials (82, 84) (e.g. continuous CD yarns) are affixed to (rewoven into) the fabric along the edges of the ravel area at each fold (38). The affixed CD materials bind the CD yarn tails along the edges of the ravel areas to prevent migration of CD yarn tails into the seam area.
Abstract:
An industrial fabric having improved sheet restraint and wear resistance along with acceptable permeability. The improvement is effected by coating only the high spots of the fabric with silicone material. The coating methods used in this invention may include kiss roll coating, gravure roll coating, rotogravure printing, rotary screen coating, screen-printing and/or flexography. The improvement is also applicable to corrugator fabrics.
Abstract:
A papermaker's fabric, usable in the forming section of a paper machine, has three layers of cross-machine-direction (CD) wefts. The forming layer wefts are grouped into pairs. This twinning of the top-layer wefts results in non-equal spacing in the forming layer. This spacing imparts a desired non-uniformity in the web-supporting surface, thereby reducing the fabric diagonal problem. One of the top-layer wefts in each pair is vertically stacked with the middle and wear side layer wefts. The other top-layer wefts in each pair are unstacked. This alignment increases the drainage properties of the fabric. The middle layer wefts provide extra stability in the CD.
Abstract:
A papermaker's fabric is made by spirally winding a woven fabric strip. The fabric strip has first (30) and second (32) lateral edges, along which are a first (34) and second lip (36), respectively. Each lip has at least one lengthwise yarn (26) woven with crosswise yarns (28). Adjacent to and inward of the first (38)and second (40) lips on the fabric strip are a first and second gap, respectively, which lack lengthwise yarns but whose crosswise yarns join the lips to the body of the fabric strip. When spirally winding the fabric strip, the first lip is disposed within the second gap, and the second lip is disposed within the first gap, of adjacent turns to form a spirally continuous seam which is closed by attaching adjacent turns to one another.
Abstract:
Highly textured tissue sheets, particularly suitable for use as bath tissue, are produced by throughdrying and have a low number and/or low amount of pinholes. The low number or amount of pinholes is provided by using a throughdrying fabric having parallel wide ridges with a height suited to the particular tissue sheet being produced.
Abstract:
An anti-rewet fabric is used for carrying a fiber web through an air press. The anti-rewet fabric includes at least one air distribution fabric layer, one air distribution fabric layer being configured for contacting the fiber web, and a perforated film layer and/or a spectra membrane, at least the perforated film layer being made of a polymeric or polyester film. At least the perforated film layer has a first film side and a second film side, the first film side being one of laminated and attached to the one air distribution fabric layer.
Abstract:
An on-machine-seamable papermaker's fabric has a base structure which is a flattened array of spirally wound multicomponent yarn. The flattened array has two layers, two sides, a length, a width and two widthwise edges. In each turn of the spiral winding, the multicomponent yarn has a substantially lengthwise orientation and is joined side-by-side to those adjacent thereto by a fusible thermoplastic material in each of the two layers. The multicomponent yarn forms seaming loops along the two widthwise edges. At least one layer of staple fiber material is needled into one of the two sides of the base structure and through the two layers.