Abstract: A method for manufacturing a machine felt. Firstly a tube having a longitudinal yarn layer is manufactured with a peripheral length double the length of the machine felt, and a width that corresponds to the width of the machine felt. The tube is compressed into a flattened tube with the formation of longitudinal yarn loops which are exposed by the removal of fibers of a fiber batt layer. An auxiliary substrate web is manufactured with a width that is less than that of the machine felt; for the longitudinal yarns and/or for the auxiliary substrate web, a material is used that absorbs laser energy; the longitudinal yarns are brought together with the auxiliary substrate web and connected by a laser beam; the auxiliary substrate web is helically wound until the tube is formed; and upon exposure of the longitudinal yarn loops, the auxiliary substrate web(s) are also removed.

Abstract: The invention is a method for manufacturing a felt belt having a support which is embedded in a fiber matrix and is made up of at least two yarn layers arranged one above another, at least one is a longitudinal yarn layer made up of longitudinal yarns extending in parallel fashion, and at least one is a transverse yarn layer made up of transverse yarns extending in parallel fashion, transverse yarns being present that are continuous over the width of the felt belt. For each longitudinal yarn layer, a first support module is manufactured, by means of a first auxiliary support web, at a width that is less than the width of the completed felt belt, the first auxiliary support web being wound in helical fashion, before, during, or after the application of yarns, to a width that corresponds to the width necessary for manufacture of the completed felt belt.

Abstract: A method for manufacturing a machine felt. Firstly a tube having a longitudinal yarn layer is manufactured with a peripheral length double the length of the machine felt, and a width that corresponds to the width of the machine felt. The tube is compressed into a flattened tube with the formation of longitudinal yarn loops which are exposed by the removal of fibers of a fiber batt layer. An auxiliary substrate web is manufactured with a width that is less than that of the machine felt; for the longitudinal yarns and/or for the auxiliary substrate web, a material is used that absorbs laser energy; the longitudinal yarns are brought together with the auxiliary substrate web and connected by a laser beam; the auxiliary substrate web is helically wound until the tube is formed; and upon exposure of the longitudinal yarn loops, the auxiliary substrate web(s) are also removed.

Abstract: The invention concerns a paper machine belt having front ends (6, 7) extending transversely to the machine direction and having a yarn structure (2, 4) made up of longitudinal yarns (3) extending in the machine direction and transverse yarns (5) extending transversely to the machine direction, and having a coupling device (8, 32, 52, 62, 72, 82, 92) connecting or capable of connecting the front ends (6, 7), which device comprises at both front ends (6, 7) coupling elements (9, 10; 33, 34, 35, 36; 53, 54; 63, 64: 83, 84; 93, 94) engaging respectively onto the yarn structure (2, 4); which is characterized in that the coupling elements (9, 10; 33, 34, 35, 36; 53, 54; 63, 64; 83, 84; 93, 94) are propping themselves against the side facing away from the front edges (6, 7) transverse yarns (5) belonging to the yarn structure (2, 4).

Abstract: The invention is a method for manufacturing a felt belt having a support which is embedded in a fiber matrix and is made up of at least two yarn layers arranged one above another, at least one is a longitudinal yarn layer made up of longitudinal yarns extending in parallel fashion, and at least one is a transverse yarn layer made up of transverse yarns extending in parallel fashion, transverse yarns being present that are continuous over the width of the felt belt. For each longitudinal yarn layer, a first support module is manufactured, by means of a first auxiliary support web, at a width that is less than the width of the completed felt belt, the first auxiliary support web being wound in helical fashion, before, during, or after the application of yarns, to a width that corresponds to the width necessary for manufacture of the completed felt belt.

Abstract: The present invention relates to a forming fabric (2), for use in the sheet-forming section of a paper machine, having or comprising a textile planar structure in which, in order to enhance inherent stability, crossing yarns (5, 6, 7) are engaged into one another at crossing points (14) and in which yarns (5, 7) additionally are fused to one another, which is characterized in that the planar structure comprises crossing first and second yarns (5, 7), the first yarns (7) having the property that they absorb laser energy and can be brought, by absorbed laser energy, to melting temperature at least at the surface; and that first and second yarns (5, 7) are fused to one another at at least some of their crossing points (14).

Abstract: The invention concerns a paper machine belt having front ends (6, 7) extending transversely to the machine direction and having a yarn structure (2, 4) made up of longitudinal yarns (3) extending in the machine direction and transverse yarns (5) extending transversely to the machine direction, and having a coupling device (8, 32, 52, 62, 72, 82, 92) connecting or capable of connecting the front ends (6, 7), which device comprises at both front ends (6, 7) coupling elements (9, 10; 33, 34, 35, 36; 53, 54; 63, 64: 83, 84; 93, 94) engaging respectively onto the yarn structure (2, 4); which is characterized in that the coupling elements (9, 10; 33, 34, 35, 36; 53, 54; 63, 64; 83, 84; 93, 94) are supported, on the side facing away from the front edges (6, 7) by transverse yarns (5) belonging to the yarn structure (2, 4).

Abstract: This invention relates to porous paper machine clothing (1, 11, 21) for de-watering a paper web in a paper machine, comprising a filament lay-up made of at least one layer (2, 12, 22) of longitudinal filaments (3, 13, 23) and at least one layer (4, 14, 24) of transverse filaments (5, 6, 7; 15; 25) which cross the longitudinal filaments (3, 13, 23), wherein the longitudinal and transverse filaments (3, 13, 23; 5, 6, 7; 15; 25) are single-component filaments, which is characterised in that the longitudinal and transverse filaments (3, 13, 23; 5, 6, 7; 15; 25) are fused at crossing points (8, 16, 27) to each other and/or to parts (17, 18, 19) joining them as a result of heating to the melting temperature which is restricted to said crossing points (8, 16, 27). The invention further relates to a method of producing porous paper machine clothing such as this.

Abstract: This invention relates to porous paper machine clothing (1, 11, 21) for de-watering a paper web in a paper machine, comprising a filament lay-up made of at least one layer (2, 12, 22) of longitudinal filaments (3, 13, 23) and at least one layer (4, 14, 24) of transverse filaments (5, 6, 7; 15; 25) which cross the longitudinal filaments (3, 13, 23), wherein the longitudinal and transverse filaments (3, 13, 23; 5, 6, 7; 15; 25) are single-component filaments, which is characterised in that the longitudinal and transverse filaments (3, 13, 23; 5, 6, 7; 15; 25) are fused at crossing points (8, 16, 27) to each other and/or to parts (17, 18, 19) joining them as a result of heating to the melting temperature which is restricted to said crossing points (8, 16, 27).