Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1980-05-01
1982-01-19
Bell, James J.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
1565801, 1565802, B32B 3116
Patent
active
043115403
ABSTRACT:
A method and apparatus are provided for the bonding of web fibers together ultrasonically. A patterned roll anvil, or the equivalent, and a horn of an ultrasonic welding machine are constructed especially for producing a nonwoven fabric from a batt of random loose ultrasonically fusible fibers. The patterned roll anvil has raised portions formed thereon spaced from each other in a direction perpendicular to the axis of rotation of the roller a distance A. The horn face is constructed so that when disposed in operative association with the anvil roller parallel to the axis of rotation of the roller, the horn face has a dimension X perpendicular to the axis of rotation of the roller that is less than 2A. In forming fabric from batts having a weight 3 ounces per square yard or less, a carrier of flexible sheet material, such as tissue paper, is passed with the batt in face to face abutting relationship, between the horn and anvil while continuously supplying ultrasonic energy to the batt with the machine sufficient to form the batt into a nonwoven fabric.
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patent: 4146416 (1979-03-01), Goldman
Bell James J.
Burlington Industries Inc.
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