Envelope Types

Banker Envelopes feature a triangular closure flap on the long edge (a banker envelope is traditionally used in the greeting card industry). One of the more standard envelope types these envelopes can be windowed.

An envelope that opens on the short edge, our pocket envelopes can be used for any application. Available in a variety of shapes, sizes and colours.

Similar to Banker envelopes but with a rectangular closure flap. Standard business envelopes are

C4 or C5 size envelope that opens on the long edge for ease of inserting documents; can be Plain Face or Window Face. Traditionally used for multi-page mailings.

An envelope that has a security print (usually in blue ink) printed on the inside of the envelope to prevent reading any of the envelope contents. This is standard on window face envelopes.

An envelope that has a clear window on the front, usually for addressing purposes. The windows come in standard sizes and must meet Australia Post specifications.

Envelope Adhesives

Where a dry substance is spread along one edge of the closing flap during manufacture. When moistened and pressed shut, this seals the envelope. This is also called ‘Tropical’. Mailhouses commonly require this when automatic insertion of documents is performed. Humid conditions can cause problems with opened packs of envelopes.

Where an envelope has two flaps for closing, a sealing substance is placed on each flap. When pressed together the flaps adhere and seal the envelope shut. This is only suitable for high usage environments as once the pack of envelopes is unsealed, light and atmospheric conditions cause the adhesive to deteriorate. Life expectancy for an opened pack of envelopes is considered to be 6-12 months.

A covering strip is placed over the sealing substance on the flap. Once peeled back and the envelope is pressed shut, it is sealed. This is the most popular sealing mechanism and has a life expectancy of 3 years

Smaller envelopes (up to C4) are made with 80gsm stock. C4 size and above are also available in heavier 100gsm stock called Cartridge. Pocket envelopes are available in White, Recycled, Brown Kraft, Cartridge and Gold Kraft.

Envelope Sizes Correspondence Envelopes

These are the traditional small envelopes used for personal correspondence and are available in either plain or window faced, secretive versions. The 95x210 is commonly used as a donation envelope.

The modern metric equivalent of the above envelopes.

The most common envelope for business correspondence. It will easily fit up to 5 A4 pages folded into three. Available in both plain faced and window faced with a variety of closure methods in both banker and wallet styles.

An interim size for mailing where up to 10 A4 pages need to be inserted. Available in both plain faced and window faced with a variety of closure methods in both banker and wallet styles.

A larger form of the DL envelope designed for over A4 10 pages folded in three. Available in both plain faced and window faced with a variety of closure methods in both banker and wallet styles. Often used for business documents.

Booklet Mailers & Pocket Envelopes

Another common envelope for business use. This will hold a small A5 booklet or A4 pages folded in half. Available in both plain faced and window faced with a variety of closure methods in both banker and wallet styles.

Used to mail A4 booklets or A4 flat pages. Available in both plain faced and window faced with a variety of closure methods in both banker and wallet styles. Available as pocket envelopes in either White Cartridge or Gold Kraft.

An oversized variety of C4 envelopes used for mailing thicker A4 booklets of larger flat A4 documents. Available as pocket envelopes in either White Cartridge, Brown Kraft or Gold Kraft.

Similar to B4 but slightly larger. Available as pocket envelopes in either White Cartridge or Gold Kraft. Often used for filing documents.

Similar to B4 but slightly larger. Available as pocket envelopes in either White Cartridge or Gold Kraft. Often used for filing documents.

Specialist envelopes for the medical industry. Available in Cartridge X-Ray or X-Ray Heavy Kraft. Available ungummed only.

Specialist envelopes for the medical industry. Available in Cartridge X-Ray or X-Ray Heavy Kraft. Available ungummed only.