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US 10,240,293 B2Granted
Papermaking felt
AssigneeIchikawa Co., Ltd.
InventorYasuyuki Ogiwara
Life of this patent
Estimating the term…
Abstract
There is provided a papermaking felt comprising at least one base fabric and at least one batt layer integrated with the base fabric. The base fabric comprises a first base fabric, a second base fabric, and a third base fabric, the first base fabric, the second base fabric, and the third base fabric are laminated together in an arbitrary order, the first base fabric is a base fabric formed by spirally winding, in a right-handed manner, a band-shaped body having a width smaller than a width of the papermaking felt, the second base fabric is a base fabric formed by spirally winding, in a left-handed manner, a band-shaped body having a width smaller than the width of the papermaking felt, and the third base fabric is a base fabric having at least a plurality of ground warp yarns parallel to an machine direction of the papermaking felt.
Claims19
A papermaking felt comprising:
- at least one base fabric and at least one batt layer integrated with the base fabric,
- wherein the base fabric comprises a first base fabric, a second base fabric, and a third base fabric,
- the first base fabric, the second base fabric, and the third base fabric are laminated together in an arbitrary order,
- the first base fabric is a base fabric formed by spirally winding, in a right-handed manner, a band-shaped body having a width smaller than a width of the papermaking felt and having a plurality of ground warp yarns, a plurality of ground weft yarns, a first side edge parallel to a ground warp direction, and a second side edge parallel to the ground warp direction in such a manner that the first side edge and the second side edge are adjacent and thereby joining the side edges together,
- the second base fabric is a base fabric formed by spirally winding, in a left-handed manner, a band-shaped body having a width smaller than the width of the papermaking felt and having a plurality of ground warp yarns, a plurality of ground weft yarns, a first side edge parallel to a ground warp direction, and a second side edge parallel to the ground warp direction in such a manner that the first side edge and the second side edge are adjacent and thereby joining the side edges together,
- the third base fabric is a base fabric having at least a plurality of ground warp yarns parallel to an machine direction of the papermaking felt,
- wherein the third base fabric includes an arrangement, in a cross-machine direction, of N or more (N≥2) annular band-shaped bodies, each of N or more annular band shaped bodies includes end edges of a band-shaped body that are joined together and that have a width smaller than the width of the papermaking felt and have a plurality of ground warp yarns, a plurality of ground weft yarns, a first end edge parallel to a ground weft direction, a second end edge parallel to the ground weft direction, a first side edge parallel to a ground warp direction, and a second side edge parallel to the ground warp direction, in such a manner that the first end edge of an N-th annular band shaped body and the second end edge of an N−1-th annular band shaped body are adjacent, and the second side edge of an N−1-th annular band-shaped body and the first side edge of an N-th annular band-shaped body are joined together in such a manner that both side edges are adjacent,
- wherein each first end edge of the N-th annular band shaped body and adjacent second end edge of the N−1-th annular band shaped body form a pair of end edges, and
- wherein each pair of end edges is located at a different position in the machine direction.
6 more elements
A papermaking felt comprising:
- at least one base fabric and at least one batt layer integrated with the base fabric,
- wherein the base fabric comprises a first base fabric, a second base fabric, and a third base fabric,
- the first base fabric, the second base fabric, and the third base fabric are laminated together in an arbitrary order,
- the first base fabric is a base fabric formed by spirally winding, in a right-handed manner, a band-shaped body having a width smaller than a width of the papermaking felt and having a plurality of ground warp yarns, a plurality of ground weft yarns, a first side edge parallel to a ground warp direction, and a second side edge parallel to the ground warp direction in such a manner that the first side edge and the second side edge are adjacent and thereby joining the side edges together,
- the second base fabric is a base fabric formed by spirally winding, in a left-handed manner, a band-shaped body having a width smaller than the width of the papermaking felt and having a plurality of ground warp yarns, a plurality of ground weft yarns, a first side edge parallel to a ground warp direction, and a second side edge parallel to the ground warp direction in such a manner that the first side edge and the second side edge are adjacent and thereby joining the side edges together,
- the third base fabric is a base fabric having at least a plurality of ground warp yarns parallel to an machine direction of the papermaking felt,
- wherein the third base fabric is a base fabric having a plurality of ground warp yarns and a plurality of ground weft yarns and formed such that a length of the ground weft yarn is equal to a total width dimension of the papermaking felt.
4 more elements
Dependencies are inferred from the claim text.