Ultrasonically bonded non-woven fabric

Details Ultrasonically bonded non-woven fabric Ultrasonically bonded non-woven fabric

1985-07-18

1987-04-21

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

156 731, 428198, 428280, 428284, 428296, 428300, 428172, B32B 702

Patent

active

046596143

ABSTRACT:
Ultrasonically bonded non-woven fabric which simulates either needle punched felt or ribcord felt is disclosed. The fabric comprised a loose packed batt which is welded to itself and alternatively can have either one or more additional dense packed layers welded thereon. Methods and apparatus are disclosed for making the fabric.

REFERENCES:
patent: 3575752 (1971-04-01), Carpenter
patent: 4259399 (1981-03-01), Hill
patent: 4311540 (1982-01-01), Hill
patent: 4400227 (1983-08-01), Riemersma
patent: 4406720 (1983-09-01), Wang et al.
patent: 4414045 (1983-11-01), Wang et al.
patent: 4565735 (1986-01-01), Murka et al.

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