Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1988-11-29
1990-01-16
Dawson, Robert A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
53375, 53388, 53491, 156227, 156291, 156443, 156497, 156499, 493131, 493151, B32B 3120
Patent
active
048941042
ABSTRACT:
A method and apparatus for sealing cartons by sticking together facing surfaces of a hinged flap and a wall of each carton by means of a solvent-based, preferably water-based, adhesive, in which the cartons are continuously moved along a line past an adhesive applicator which applies a deposit of adhesive to the under surface of the flap, first pressure rollers arranged to bring the flap surface temporarily into contact with the side wall to transfer some of the adhesive to it and to thin out and spread the adhesive on the flap, a hot air nozzle which enters within the acute angle formed between the two surfaces when the flap is released from the first pressure rollers and which directs hot air onto the surfaces to effect partial drying of the adhesive, and a second set of pressure rollers to press the flap against the side wall to effect final sealing.
REFERENCES:
patent: 3884130 (1975-05-01), Stolkin et al.
patent: 4367117 (1983-01-01), Seaborn
patent: 4636185 (1987-01-01), Carter et al.
patent: 4676860 (1987-06-01), Lee et al.
Dawson Robert A.
MB Group plc
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