Web folding and sealing machine

Details Web folding and sealing machine Web folding and sealing machine

1982-07-09

1983-12-13

Heinz, A. J.

Sheet-material associating

Associating and folding

Stapling or stitching

493131, 493141, 493335, 493393, 156495, B41L 4312, B31B 2300

Patent

active

044201478

ABSTRACT:
A machine for folding and gluing a continuous web in high speed operation. A continuous web which has solidified glue thereon in selected regions is folded. Heat is applied to the folded web to melt the glue, particularly in specific areas of the folded web. Pressure is applied to the specific areas to urge together the folded portions of the web and the melted glue therebetween. Then the folded web travels between heat transfer members which rapidly cool the folded web and the glue between folded portions thereof. Thus, the glue is solidified and the folded portions are firmly adhesively attached together.

REFERENCES:
patent: 3130647 (1964-04-01), Anderson
patent: 3709775 (1973-01-01), James
patent: 4050361 (1977-09-01), Traise

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