Envelope Terminology

Sort from: A–K L–P R–Z

 

Back Flap

Reverse side of a wallet or banker.

Bang Tail

Special style of wallet, incorporating a perforated flap, extending from the throat.

Banker

Style with an opening on the long edge, and a diamond shape flap. Described as either high cut or low cut depending upon the throat.

Basket Weave

Paper with a weave effect finish traditionally used for heavyweight manilla papers.

Blank Fed

Envelope manufacture using sheets of paper.

Bleed

Where the print runs off the edge of the paper.

Board Backed

Generally a pocket style, made with a cardboard back to provide a rigid envelope.

Business Reply (BRE)

A reply envelope with pre-paid postage using a business reply licence. Most often used with business to business mailings.

Chevron Flap

Where the contour on the top flap of the envelope matches the leading edge of the back flap.

Colour Washing

Printing technique used on the inside or outside of an envelope to give a tinted or colour effect.

Constanzia Wallet

A wallet construction, but with the side seams folded on the outside of the back flaps. Used primarily for mailing wallets.

Face

The front of an envelope.

Glassine

Paper based material, used for windows and some photo envelopes GummingA strip of gum applied to the flap that needs to be dampened to help seal the envelope.

Gusset Pocket

An open end envelope with expandable sides.

Kraft

Strong, glazed manilla paper. Also produced in white and bleached kraft.

Landscape

An envelope format where the longest side of the window runs parallel to the long edge of the envelope.

Machine Enclosable

An envelope that runs efficiently through an automatic mailing machine (see mailing wallet).

Machine Glazed (MG)

Smooth finish on one side of the paper, particularly common on manilla paper.

Mailing Wallet

A style of envelope that can be used in an automatic mailing machine.

Mirror Gummed

Remoistenable gum on both the flap and the backflap for extra security.

Multi-Tuck

Pocket with an ungummed internal flap that folds over for security but can be opened for postal inspection.

Opacity

The degree of show through or transparency of the paper, i.e. an envelope with good opacity will not show the contents enclosed.

Opaque

Printed solid, or design inside an envelope for security.

Out Turns

Envelopes that have been taken from the print run and sent to the client.

Overprint

Printing onto already manufactured envelopes.

Pocket

Envelope style with one side or centre seam, a bottom flap and an opening on the short side.

Porosity

The measure of air in the paper that allows absorption of ink. The degree of porosity can affect the quality of the printing, and can also affect the efficiency on some automated enclosing machines.

Portrait

An upright envelope where the long side of the window is parallel to the short side of the envelope.

Post Office Preferred

Series of recommendations for envelopes, set by International Postal Administrators.

Pull-Tab

A cut out strip which can be pulled to reveal a gimmick or open an envelope.

Reel Fed

High-speed envelope manufacturing technique, using reels of paper.

Re-Sealable

Latex gum on the flap and back of the envelope, that gives instant adhesion but can be opened and closed several times for postal inspection.

Score Line

Fold between the flap and the throat of wallets and pockets.

Security Slits

Lines scored on the outer flap of self-seal envelopes only, which split the flap in three places when it is opened. This makes it possible to detect if the envelope has been tampered with.

Security Wash

See Opaque.

Self-Seal

Two strips of latex on the envelope flaps that seal with each other on contact.

Shoulder

Top of the side flaps on a wallet. A critical design aspect for most automated inserting machines.

Side Flap/Seam

Two seams on a wallet/banker, gummed to the back flap.

Superseal

Envelope with self-adhesive flaps, protected by a release strip to give extended shelf life.

Throat

Gap between the score line and the back flap of a wallet. A critical design aspect for most automated inserting machines.

Thumb Cut

Shape cut from a topless pocket or wallet, to enable easy access to the contents.

Topless

Pocket or wallet style without a flap, although a lip may be left.

Wallet

Envelope style with two side seams and the opening on the long edge.