Ultrasonic seaming of abutting strips for paper machine clothing

Details Ultrasonic seaming of abutting strips for paper machine clothing Ultrasonic seaming of abutting strips for paper machine clothing

1997-02-07

1998-02-03

Falik, Andy

Textiles: weaving

Fabrics

Drier felts

162904, 156 734, 156148, 156195, 428193, 442185, 28110, D03D 1300

Patent

active

057133999

ABSTRACT:
A method for manufacturing a papermaker's fabric by spirally winding a woven fabric strip, narrower than the intended width of the fabric, and the papermaker's fabric manufactured in accordance with the method, are disclosed. The fabric strip includes lengthwise and crosswise yarns, and has a lateral fringe along at least one lateral edge thereof, the lateral fringe being unbound ends of the crosswise yarns extending beyond the lateral edge. During the spiral winding of the fringed strip, the lateral fringe of a turn overlies or underlies an adjacent turn of the strip. The lateral edges of adjacent turns abut against one another. The spirally continuous seam so obtained is closed by ultrasonically welding or bonding the overlying or underlying lateral fringe to the fabric strip in an adjacent turn.

REFERENCES:
patent: 4761329 (1988-08-01), Halker et al.
patent: 5169570 (1992-12-01), Sayers et al.
patent: 5360656 (1994-11-01), Rexfelt et al.
patent: 5480604 (1996-01-01), Johnson et al.

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