D21F7/08

LAMINATED PAPERMAKING BELT

Disclosed is a two layered belt useful in the manufacture of tissue products comprising a first woven layer and a second nonwoven layer joined together in a laminated arrangement. The woven layer typically forms the machine contacting layer of the belt and is woven from a highly abrasion resistant material, while the nonwoven layer contacts the nascent tissue web. The woven layer may be provided with valleys and ridges that the nascent web is molded into, while the nonwoven layer may be provided with elements that impart a visually aesthetic pattern to the web. In this manner the belt may be useful in the production of products having desirable physical properties resulting from molding into the woven fabric while also being visually pleasing to the user.

WOVEN PAPERMAKING FABRIC INCLUDING STABILIZED WEAVE PROVIDING TEXTURED CONTACTING SURFACE
20220290371 · 2022-09-15 ·

The present invention relates to papermaking fabrics useful in the manufacture of paper products, such as tissue paper. Particularly this invention relates to a woven papermaking fabric that includes a stabilized weave providing a textured contacting surface. The woven papermaking fabric includes a plurality of warp and shute filaments woven together to provide at least one protuberance on the web contacting side of the fabric that extends longitudinally over at least five shute filaments. The at least one protuberance is stabilized by including an offset shute float weave pattern configured such that a majority of the shute filaments forming the at least one protuberance are woven in an anti-nesting configuration.

WOVEN PAPERMAKING FABRIC HAVING MACHINE AND CROSS-MACHINE ORIENTED TOPOGRAPHY
20220290372 · 2022-09-15 ·

Disclosed are woven papermaking fabrics having a textured sheet contacting surface with machine and cross-machine direction topography. The machine direction (MD) topography may be imparted by substantially MD oriented protuberances comprising a warp strand supported by a shute strand. The cross-machine direction (CD) topography may be imparted by substantially CD oriented protuberances comprising a shute strand supported by a warp strand. The CD protuberances may extend continuously in the CD and intersect the MD oriented protuberances to form discrete pockets there between. The pockets may have a variety of shapes and size depending on the MD and CD oriented protuberance. In certain instances the pockets may be rectilinear and have a pocket depth greater than 1.0 mm and a pocket angle greater than 28 degrees.

WOVEN PAPERMAKING FABRIC HAVING MACHINE AND CROSS-MACHINE ORIENTED TOPOGRAPHY
20220290372 · 2022-09-15 ·

Disclosed are woven papermaking fabrics having a textured sheet contacting surface with machine and cross-machine direction topography. The machine direction (MD) topography may be imparted by substantially MD oriented protuberances comprising a warp strand supported by a shute strand. The cross-machine direction (CD) topography may be imparted by substantially CD oriented protuberances comprising a shute strand supported by a warp strand. The CD protuberances may extend continuously in the CD and intersect the MD oriented protuberances to form discrete pockets there between. The pockets may have a variety of shapes and size depending on the MD and CD oriented protuberance. In certain instances the pockets may be rectilinear and have a pocket depth greater than 1.0 mm and a pocket angle greater than 28 degrees.

Sheet manufacturing apparatus, control method thereof, and sheet manufacturing method

The sheet manufacturing apparatus includes a fibrillating unit that fibrillates a raw material including fibers in a gas, an additive supply unit that supplies an additive, a mixing unit including a first rotating unit that mixes a fibrillated matter fibrillated by the fibrillating unit and the additive supplied by the additive supply unit, a depositing unit that deposits a mixture mixed by the mixing unit, a web forming unit including a mesh belt that transports a deposited material deposited by the depositing unit and a suction mechanism that sucks the deposited material to the mesh belt, and a control unit that changes granularity of a surface of the sheet by controlling at least one of a supply amount per unit time from the additive supply unit, a rotation velocity of the first rotating unit of the mixing unit, and a suction force of the suction mechanism.

PAPER MACHINE CLOTHING AND METHOD
20220275580 · 2022-09-01 ·

A paper machine clothing, in particular a press felt, for a machine for producing or processing a fibrous material web, includes a base structure and at least one layer of nonwoven fibers disposed on the base structure. The layer of nonwoven fibers has bonding fibers and further fibers. The bonding fibers and the further fibers differ in at least one material property, and at least some of the bonding fibers are connected to one or more further fibers and/or elements of the base structure by an integral joining connection, in particular a weld connection. A method for producing the clothing is also provided.

BASIC STRUCTURE OF A CLOTHING FOR A MACHINE FOR PRODUCING OR PROCESSING A FIBROUS MATERIAL WEB AND METHOD FOR THE PRODUCTION THEREOF
20220298727 · 2022-09-22 ·

A basic structure of a clothing for a machine for producing or processing a fibrous web, in particular a paper, cardboard or tissue web. The basic structure has at least a first flat fabric of fabric type A and a second flat fabric of fabric type B, and, furthermore, two loop elements. The loop elements are formed in each case from a flat fabric piece which has a first portion of fabric type A and a second portion of fabric type B. The first portion is laid down on the second portion in such a way that the folding point is formed at a spacing of less than 5 cm, in particular less than 1 cm, from the changeover position between the fabric type A and the fabric type B. The first and the second flat fabric are arranged above one another, and the two loop elements are arranged in each case at a face-side, front end.

Woven papermaking fabric having converging, diverging or merging topography

Provided are woven papermaking fabrics having a web contacting surface having protuberances formed from woven warp and shute filaments. The protuberances, which may be oriented in the machine direction (MD) converge, merge or diverge and may be arranged to form a pattern. In certain instances the protuberance may comprise a first MD oriented protuberance having an element angle from about 0.5 to about 15 degrees, a second MD oriented protuberance having an element angle from about −0.5 to about −15 degrees wherein the first and second protuberances converge at a convergence area to form a third MD oriented protuberance having an element angle from about −15 to about 15 degrees.

Woven papermaking fabric having converging, diverging or merging topography

Provided are woven papermaking fabrics having a web contacting surface having protuberances formed from woven warp and shute filaments. The protuberances, which may be oriented in the machine direction (MD) converge, merge or diverge and may be arranged to form a pattern. In certain instances the protuberance may comprise a first MD oriented protuberance having an element angle from about 0.5 to about 15 degrees, a second MD oriented protuberance having an element angle from about −0.5 to about −15 degrees wherein the first and second protuberances converge at a convergence area to form a third MD oriented protuberance having an element angle from about −15 to about 15 degrees.

Laminated papermaking belt

Disclosed is a two layered belt useful in the manufacture of tissue products comprising a first woven layer and a second nonwoven layer joined together in a laminated arrangement. The woven layer typically forms the machine contacting layer of the belt and is woven from a highly abrasion resistant material, while the nonwoven layer contacts the nascent tissue web. The woven layer may be provided with valleys and ridges that the nascent web is molded into, while the nonwoven layer may be provided with elements that impart a visually aesthetic pattern to the web. In this manner the belt may be useful in the production of products having desirable physical properties resulting from molding into the woven fabric while also being visually pleasing to the user.