The closing flap of the envelope (pouch) can have different shapes depending on the type of closure desired.

Straight closing flap It can be adapted to all types of closure: gummed, self-adhesive or self-adhesive and to most envelope formats. It is mainly used for manual insertion of envelopes in professional correspondence.
Diamond closing tab (V) It is only suitable for gummed closures, especially for small envelopes, preferably for personal correspondence such as invitations, weddings, birthdays, etc.
Trapezoidal closing flap It is only suitable for gummed closures. It is mainly used for automatic envelope insertion.
Rounded closing flap Fits only the gummed closure. It is mainly used for automatic envelope insertion.

You wish to produce envelopes or pockets in a particular paper ? in a particular format ? for a particular window position ?

Contact us without further delay, we will study your needs together and propose the solution best suited to your technical and budgetary constraints.