Low pressure single facer

Details Low pressure single facer Low pressure single facer

1997-05-15

2000-11-21

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156472, B31F 128

Patent

active

061497517

ABSTRACT:
A method and apparatus for producing a single face corrugated web from an adhesively bonded liner and medium web without the use of a pressure roll nip where the liner web is joined to the medium web. A heated bonding roll with a fluted outer surface carries the single face web around a circumferential portion sufficient to create a green bond in the glue lines before the web is removed from the roll. The bonding roll may be internally heated or a steam chamber may be positioned around a portion of a lower bonding roll, such that the steam chamber introduces a supply of steam into contact with the single face web while the single face web is in contact with the outer circumference of the bonding roll. An adjustable wrap arm places the freshly glued single face web in contact with the bonding roll and tension in the liner web is controlled to adjust the radial force applied to the glue lines.

REFERENCES:
patent: 1186998 (1916-06-01), Langston
patent: 1519280 (1924-12-01), Wandel
patent: 2979112 (1961-04-01), Wilson
patent: 3004880 (1961-10-01), Lord
patent: 3920496 (1975-11-01), Wilkinson et al.
patent: 3960475 (1976-06-01), DeLigt et al.
patent: 5498304 (1996-03-01), Shaw et al.
patent: 5614048 (1997-03-01), Barney et al.
patent: 5728256 (1998-03-01), Shulz et al.

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