Envelope seams are typically permanently sealed for durability.

Envelope seams are typically permanently sealed for durability

• Center Seams – Most commonly used on coin and catalog envelopes.
• Diagonal Seams – Used on commercials and pointed flap baronials.
• Side Seams – Provide a large area for printing on the back, as in reverse face, collection and booklet envelopes.
• Weld Seams – Eliminate die cutting and can be produced to permit insertion and trimming in a magazine. The envelope’s pocket size is determined by the distance between the internal gum lines.

Constructed without a flap, but rather with an extension of the face, neither gummed nor scored, to assist with material insertion.

Latex adhesive is applied on two flaps and separated until sealing.

Used on catalogs

Used on booklets and machine insertables.

Used on #7-1/2 envelope flaps.

Used on most baronials.

Used on some small coin, drug and pay envelopes

Used on our Church Offering envelopes.

Used on announcements and some booklets.

Used on commercials

Provide additional area for printing on both the back and seal flap; used on dual purpose, some commercials, collections, and order-form envelopes