Method and apparatus for stacking pressure-sensitive adhesive envelopes

Method and apparatus for stacking pressure-sensitive adhesive envelopes

The present invention relates to a stack of pressure sensitive adhering envelopes wherein each envelope can be easily removed from the stack and used without having to moisten the flap. The flaps of the envelopes are treated on the back side with a release coating and on the front side with a pressu...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: SHIMAZAKI, JUNJI J
Format: Patent
Sprache:eng
Schlagworte:
ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR
CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS
CONVEYING
HANDLING THIN OR FILAMENTARY MATERIAL
PACKAGES
PACKAGING ELEMENTS
PACKING
PERFORMING OPERATIONS
STORING
TRANSPORTING
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Beschreibung
Zusammenfassung:The present invention relates to a stack of pressure sensitive adhering envelopes wherein each envelope can be easily removed from the stack and used without having to moisten the flap. The flaps of the envelopes are treated on the back side with a release coating and on the front side with a pressure sensitive adhesive so that when the envelopes are stacked with the flaps open, the adhering interface between the pressure sensitive adhesive and the release coating is not permanent. Each envelope in the stack can be easily removed from the stack and sealed by folding the flap onto the body portion of the envelope and applying a slight pressure onto the flap. No release tape is required because each adjacent envelope is treated with the release coating.