摘要:
A belt for use in a long nip press having an arcuate pressure shoe. The belt has at least one layer having a polymer resin coating on at least one surface thereof. The resin coating has a plurality of grooves arranged therein and wherein a number of the grooves has a length less than a length of the arcuate pressure shoe to reduce ingoing nip spray.
摘要:
A belt for use in a long nip press having an arcuate pressure shoe. The belt has at least one layer having a polymer resin coating on at least one surface thereof. The resin coating has a plurality of grooves arranged therein and wherein a number of the grooves has a length less than a length of the arcuate pressure shoe to reduce ingoing nip spray.
摘要:
A laminated substrate or base structure comprising separately formed layers with warp knitted or stitch bonded yarns joining the layers together wherein at least one of the layers is a reinforcing layer and at least one of the layers is for inhibiting resin flow through the substrate. A method for forming the substrate or base structure into a coated papermaker's process belt product is also described.
摘要:
A belt for use in a long nip press having an arcuate pressure shoe. The belt has at least one layer having a polymer resin coating on at least one surface thereof. The resin coating has a plurality of grooves arranged therein and wherein a number of the grooves has a length less than a length of the arcuate pressure shoe to reduce ingoing nip spray.
摘要:
A family of paper industry process belts (“PIPB's”) having a range of properties for different applications in the paper industry. The PIPB can be a laminate comprising a grooved press belt and a porous membrane embedded therein and used as a substitute dewatering structure heretofore provided by press fabric(s).
摘要:
A press fabric for use on the press section of a paper machine has a multilayer structure, and is woven according to techniques normally applied in the weaving of forming fabrics. The press fabric is woven from at least one system of warp yarns and two or more layers of weft yarns, with the yarn sizes and weave patterns chosen with a view toward providing the resulting press fabric with a fine paper-contacting surface, and ample void volume. One of the two or more layers of weft yarns includes, or is entirely composed of, multicomponent yarns having a plurality of load-bearing members. The multicomponent yarns may be multifilament or multistrand yarns composed of fine filaments, or may be polyurethane-coated monofilament yarns, and provide the press fabrics with a compressible and resilient structure. The multifilament or multistrand yarns may also be polyurethane-coated.
摘要:
A needled press felt, i.e. a felt which is intended to be used in the press section of a papermaking machine. The batt part of the felt comprises at least two kinds of fiber one of which consists of fibers having a diameter size 0.010 mm or less. These fibers are removed either successively or intermittently during the service of the felt in the press section, whereas the rest of the fibers in the batt part of the felt, i.e. the fibers having a larger diameter than those of the first kind, remain in the batt part.
摘要:
A substrate for an endless belt in a papermaking machine comprising a plurality of preformed layers coated or impregnated with a polymeric or rubber material. Each preformed layer may be a textile material. At least one layer contains a matrix of preformed reinforcing components. The individual layers are first coated with a polymer resin or rubber material and then combined/stacked and cured/bonded to form the substrate of the belt.
摘要:
A belt for use in a papermaking process, such as in a long nip press having a cylindrical press roller and an arcuate pressure shoe which define a nip. The belt has a nip load zone which passes through the nip during an operation. The belt comprises a substrate having a coating on at least one surface thereof. The substrate is in the form of an endless loop and has a longitudinal direction. The coating has a plurality of grooves running in a center portion of the nip load zone, in which the number of grooves have at least one of a depth, width, cross-sectional shape, or spacing which is different from that of the others so as to vary the void volume in a desired manner.
摘要:
A belt for use in a papermaking process, such as in a long nip press having a cylindrical press roller and an arcuate pressure shoe which define a nip. The belt has a nip load zone which passes through the nip during an operation. The belt comprises a substrate having a coating on at least one surface thereof. The substrate is in the form of an endless loop and has a longitudinal direction. The coating has a plurality of grooves running in a center portion of the nip load zone, in which the number of grooves have at least one of a depth, width, cross-sectional shape, or spacing which is different from that of the others so as to vary the void volume in a desired manner.