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US 2020/0354864 A1Published application
Base fabric, jet loom, and method of manufacturing base fabric
AssigneeToray Industries, Inc.
InventorsTamotsu Arichi, Hironori Shinkai, Yoshihiro Kawahara
Life of this patent
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Abstract
A base fabric, having a coefficient of variation CV1 (100×standard deviation/average value) of 3.0% or less in a length direction of a weft-direction disintegrated yarn strength and a coefficient of variation CV2 (100×standard deviation/average value) of 4.0 or less in a length direction of a weft-direction disintegrated yarn elongation.
Claims10
1-8. (canceled)
A base fabric having
- a coefficient of variation CV1 (100×standard deviation/average value) of 3.0% or less in a length direction of a weft-direction disintegrated yarn strength, and
- a coefficient of variation CV2 (100×standard deviation/average value) of 4.0 or less in a length direction of a weft-direction disintegrated yarn elongation.
A base fabric comprising:
- a fabric part, and selvages having a predetermined width formed at both ends in a length direction of the fabric part, respectively, and having
- a coefficient of variation CV1′ (100×standard deviation/average value) of 3.0% or less in a length direction of a weft-direction disintegrated yarn strength in a width direction including the selvages, and
- a coefficient of variation CV2′ (100×standard deviation average value) of 4.0 or less in a length direction of a weft-direction disintegrated yarn elongation in a width direction including the selvages.
A base fabric consisting of
- a synthetic fiber, and including
- a fabric part, and selvages having a predetermined width formed at both ends in the length direction of the fabric part, respectively,
- wherein the selvage has a fringe protruded from a weft yarn and has a length direction coefficient of variation CV3 (100×standard deviation/average value) of 8.0% or less of the fringe in a length direction of the base fabric.
A jet loom comprising:
- a length measuring device that supplies a weft yarn to a weft yarn supply nozzle for weft-inserting between open warp yarn groups, and a contact pressure adjusting member, the length measuring device comprising:
- a weft yarn catching mechanism that maintains the weft yarn tension, wherein the weft yarn catching mechanism comprises
- a first roller rotatably supported and rotationally driven by a fixed shaft, and
- a second roller rotatably supported by a moving shaft and rotates following the rotation of the first roller by being brought into pressure contact with the first roller, and
- wherein the contact pressure adjusting member is a member that adjusts the contact pressure of the second roller with respect to the first roller to adjust the shaking width of the moving shaft in the fixed shaft direction to 5-600 μm.
2 more elements
Dependencies are inferred from the claim text.