Types of envelopes

Envelopes for laser printers

The latest additions to the envelope family are envelopes for laser printers. Thanks to these kinds of envelopes, it is possible to print envelope graphics directly with a common office laser printer. This process makes personalized and bespoke marketing and mailing possible.The first envelope suitable for laser printers has been patented by an Italian company, the Sacchettificio Monzese.

Windowed envelopes

A windowed envelope is an envelope with a plastic window in it. The plastic in these envelopes creates problems in paper recycling. Consumers who don't want to go through the trouble of ripping out the plastic window should put the envelope in a trash bag after use.

Security envelopes

Security envelopes have special tamper-resistant and tamper-evident features. They are used for high value products and documents as well as for evidence for legal proceedings.Some security envelopes have a patterned tint printed on the inside, which makes it difficult to read the contents. Various patterns exist.

Mailers

Some envelopes are available for full size documents. The Postal Service and Express mail carriers have large mailing envelopes for their express services. Other similar envelopes are available at stationery supply locations.

These mailers usually have an opening on an end with a flap that can be attached by gummed adhesive, integral pressure-sensitive adhesive or adhesive tape. Construction is usually:

Paperboard
Corrugated fiberboard
Polyethylene, often a coextrusion
Nonwoven fabric