SHEET BONDING DEVICE AND ENCLOSING-SEALING DEVICE
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United States of America Patent
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Issued Date -
May 21, 2015
app pub date -
Nov 13, 2014
filing date -
Nov 19, 2013
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Abstract
A glue application unit applies glue to glue application region of an envelope form to form main adhesive part with a required thickness that allows firm adhesion between glue application region and counter region after the sheet adhesion process, and a temporary adhesive part with a thickness thinner than the main adhesive part for temporarily adhering the glue application region and the counter region within a short period of time. A predetermined pressure is applied to the glue application region and the counter region which are in contact with each other on the envelope form having a content enclosed so that those regions are adhered by the sheet bonding unit.
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