摘要:
The invention relates to a method for producing a topographical pattern from polymer material on an endless strip with a longitudinal direction and a transverse direction extending perpendicularly thereto, in which method a cylindrical rotary screen is used to apply the polymer material by the screen printing process to a circumferential side of the endless strip to be printed, wherein, when producing the pattern, the rotary screen, rotating repeatedly about its longitudinal axis, rolls on the circumferential side of the endless strip, whereby the pattern is applied to the circumferential side in at least one path running at least once uninterruptedly around the circumferential side in such a way that the beginning and the end of each revolution of the path are arranged along a common straight line, wherein, when rolling, the rotary screen performs N revolutions about its longitudinal axis during each revolution of the path on the circumferential side of the endless strip and N is a positive integer.
摘要:
The invention relates to a method for producing a topographical pattern from polymer material on an endless strip with a longitudinal direction and a transverse direction extending perpendicularly thereto, in which method a cylindrical rotary screen is used to apply the polymer material by the screen printing process to a circumferential side of the endless strip to be printed, wherein, when producing the pattern, the rotary screen, rotating repeatedly about its longitudinal axis, rolls on the circumferential side of the endless strip, whereby the pattern is applied to the circumferential side in at least one path running at least once uninterruptedly around the circumferential side in such a way that the beginning and the end of each revolution of the path are arranged along a common straight line, wherein, when rolling, the rotary screen performs N revolutions about its longitudinal axis during each revolution of the path on the circumferential side of the endless strip and N is a positive integer.
摘要:
A method to produce a press felt for a fiber web producing and/or processing machine, including the steps of a) providing a load bearing base structure, which is, for example, produced of yarns, b) providing a first and a second non-woven fiber layer, c) imprinting a polymer material pattern onto the first or second non-woven fiber layer so that the polymer material pattern partially covers the layer, d) arranging the first non-woven fiber layer on one side of the base structure and e) arranging the second non-woven fiber layer on the first non-woven fiber layer in such a manner that the polymer material pattern is arranged between the two non-woven fiber layers. The present invention further relates to a press felt manufactured according to the method of the present invention.
摘要:
The present invention relates to a belt to transport a material web in a web producing and/or web converting machine, especially a paper, cardboard or tissue machine from a first transfer location to a second transfer location, whereby the belt is bordered in a cross direction on each side by a respective longitudinal edge, whereby the belt includes a weight-carrying base structure which is disposed between a paper side polymer layer and a machine side polymer layer and in the region of at least one longitudinal edge an edge reinforcement is provided. The present invention is characterized in that the edge reinforcement is formed in that the two polymer layers protrude in the region of the longitudinal edge in the cross direction beyond the base structure and a hereby created groove extending in the longitudinal direction of the belt is filled at least in sections with a polymer material. The present invention also relates to a method for the manufacture of a belt.
摘要:
A method and apparatus is disclosed for manufacturing papermakers or like fabrics wherein preformed apertured fabric bands are joined together in spaced edge-to-edge disposition in a manner to provide substantial uniformity of construction throughout the fabric width. The invention proposed supporting the bands (11, 12) in spaced parallel disposition on a pinned roller (26) wherein the distribution and configuration of the pins (34) matches the apertures in the bands and creating an infill band in the region between adjacent preformed bands (11, 12) by feeding thermoplastic matrix material to the surface of the pinned roller in said region, causing said matrix material to flow into interstices between the pins and to bond with the material of the preformed bands. Reinforcing yarns (13) will be provided in the region between adjacent preformed bands and extending in a direction parallel to the bands and will be embodied within the matrix material of the joined structure. Transversely extending yarns may be provided on the preformed bands for like encapsulation by the matrix material of the infill band.
摘要:
A covering for a machine for the production of a fibrous web has, at least in some sections, a two-dimensional structure which is formed by a multiplicity of polymer-based regions which differ from each other at least in part by virtue of a different fraction of filler material and/or by virtue of a different type of filler material.
摘要:
A method for producing a topographical pattern on or in a papermachine fabric. The method for creating the pattern on or in an fabric, includes producing a topographical polymer pattern on or in a papermachine fabric using a rotary screen. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
摘要:
A covering for a machine for the production of a fibrous web has, at least in some sections, a two-dimensional structure which is formed by a multiplicity of polymer-based regions which differ from each other at least in part by virtue of a different fraction of filler material and/or by virtue of a different type of filler material.
摘要:
A method of forming a structured fibrous web including the steps of supplying a fiber slurry to a nip, the nip being formed by a structured fabric and a forming fabric; dewatering the fiber slurry through the forming fabric to create a web; retaining the web with the structured fabric through at least one dewatering process, the forming fabric including a woven fabric having a paper side and a roll side, the paper side having a paper side surface and said roll side having a roll side surface; and providing a polymer material deposit extending above the paper side surface, the polymer material deposit having at least one of a random pattern, a random motif, a pseudo-random pattern, a pseudo-random motif, a predetermined pattern and a predetermined motif.
摘要:
A fabric for an advanced dewatering system having a woven fabric, the woven fabric having a paper side and a roll side, the paper side having a paper side surface and the roll side having a roll side surface and a polymer material. The polymer material is deposited onto the fabric and extends above the paper side surface. The polymer material has at least one of a random pattern, a random motif, a pseudo-random pattern, a pseudo-random motif, a predetermined pattern, and a predetermined motif.