In the process of gluing paper envelopes, it is necessary that the chosen glue has good adhesion to different types of paper and a durable bond joint. In this case we would use a permanent hot-melt PSA adhesive, as well as several types of dispersion (water-based) adhesives. This process involves the side gluing of the envelope, its flaps and also the gluing of BOPP windows to the side of the envelope. The choice of a suitable adhesive depends on the capabilities of the technological equipment on which the envelopes are made and on the glued materials used in their manufacture.

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