Forming cartons

Manufacturing container or tube from paper; or other manufacturi – Control means energized in response to activator stimulated... – Responsive to work material – the product or means engaging...

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Details

493129, 493134, 493151, 493174, B31B 162, B31B 360

Patent

active

044901291

ABSTRACT:
In the forming of cartons, a water-based adhesive, e.g. an aqueous-dispersed polyvinylacetate, is applied as an atomized spray by guns to selected parts of a carton blank of uncoated board and partially dried by hot gas (air) jets, and the carton is erected by forcing the carton blank by a punch through a forming die so that the selected parts are pressed briefly against cooperating parts of the carton to secure them together, by means of projections on the punch and pressure members forming part of the die. The atomized spraying followed by hot air drying of the adhesive enables adhesion to be effected by very brief pressure, and the method can thus be used for high speed production of cartons of uncoated board.

REFERENCES:
patent: 2984598 (1961-05-01), Gobalet
patent: 3056337 (1962-10-01), Bahr et al.
patent: 3196761 (1965-07-01), Ullman
patent: 3218940 (1965-11-01), Pearson
patent: 3511138 (1970-05-01), Baker
patent: 3648573 (1972-03-01), LeFebvre et al.
patent: 4261254 (1981-04-01), Nowacki

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