Carton seam edge sealant applying apparatus and process

Details Carton seam edge sealant applying apparatus and process Carton seam edge sealant applying apparatus and process

1991-09-18

1993-06-22

Lusigan, Michael

Coating apparatus

Immersion or work-confined pool type

Work extending through pool-confining wall area

118410, 118412, 427284, 427285, B05G 302

Patent

active

052213463

ABSTRACT:
An apparatus for applying a heat responsive melt sealant to the side edge of a carton, such as a gable-top liquid carton prior to folding the carton into its tubular form. The apparatus forces the sealant to flow evenly along an edge of the carton to be sealed and confines the sealant adjacent to the edge. The apparatus has a reverse C-shaped channel through which the carton blank edge is fed and a duct opening in the bight portion of the channel through which the sealant is fed onto the carton blank edge. In the process of the invention, after the heat responsive melt sealant is applied to the interior edge of the carton blank, the latter is conveyed to a heat station where the heat responsive melt sealant is cured preparatory to final erection of the tubular carton.

REFERENCES:
patent: 3081213 (1963-03-01), Chinn

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