VERFAHREN ZUM HERSTELLEN VON SELBSTKLEBEUMSCHLAEGEN

摘要

The invention relates to a method for making self-sealing envelopes, which each comprise front part (2) with two side flaps (3) and with a closure flap (4), and also a bottom flap (5) which runs in front in the envelope machine, the bottom flap being provided at its free edge with an edge strip (6) and furthermore the parts and flaps being cut to size, prefolds at the folding points being made and the parts and flaps being folded over and provided with self-sealing material on the inside of the closure flap and on the outside of the bottom flap edge strip. …The invention essentially comprises first of all prefolding the bottom flap edge strip (6), before it is folded over into the folded-back position, counter to its folded-back position, and running it through the envelope machine in this form until it is folded against the prefolding direction into the folded-back position for the purpose of further processing. ……