Apparatus for continuous hot air bonding a nonwoven web

Details Apparatus for continuous hot air bonding a nonwoven web Apparatus for continuous hot air bonding a nonwoven web

1975-07-09

1977-03-08

Van Horn, Charles E.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Automatic and/or material-triggered control

34115, 34118, 156181, 156382, 156433, 156494, 156497, 156499, 226195, F26B 1118, D04H 312

Patent

active

040111245

ABSTRACT:
A nonwoven web of thermoplastic filaments is thermally bonded by conveying the web on a rotating hollow cylindrical roll having a pervious surface and passing hot air through the web into the roll to heat the filaments to the bonding temperature. The web is restrained against the roll surface with a stationary porous fabric under pressure developed by flow of the hot air through the fabric. Means for adjusting the length of fabric in contact with the web, and for measuring tension on the fabric, are provided in the apparatus.

REFERENCES:
patent: 3345756 (1967-10-01), Bryand et al.
patent: 3574261 (1971-04-01), Bailey
patent: 3617417 (1971-11-01), Olson
patent: 3771236 (1973-11-01), Candor et al.
patent: 3800364 (1974-04-01), Halwaites
patent: 3811988 (1974-05-01), Fleissner

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