Ultrasonic production of nonwovens

Details Ultrasonic production of nonwovens Ultrasonic production of nonwovens

1981-11-06

1983-09-27

Wityshyn, Michael G.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156181, 156296, 156553, 1565801, 1565802, 156582, 264 23, 4251742, 428296, B29C 2708, B32B 3120

Patent

active

044067208

ABSTRACT:
An ultrasonically bonded non-woven web is produced having no unacceptable fuzziness. An ultrasonic horn and an anvil roller are mounted for cooperation with each other to effect ultrasonic welding of a single batt of random, loose ultrasonically fusible fibers passed between them in a dry condition. The anvil roller comprises metal projections disposed in a pattern defining the roller circumferential surface, and ultrasonically insulating material--such as rubber--fills the volume between the metal projections.

REFERENCES:
patent: 3575752 (1968-05-01), Carpenter
patent: 3855045 (1974-12-01), Brock
patent: 3993532 (1976-11-01), McDonald et al.
patent: 4090897 (1978-05-01), Minick
patent: 4105491 (1978-08-01), Haase et al.
patent: 4109353 (1978-08-01), Mitchell et al.
patent: 4110152 (1978-08-01), Dunning et al.
patent: 4259399 (1981-03-01), Hill

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