White Envelopes

An envelope is a common packaging item, usually made of thin flat material. It is designed to contain a flat object, such as a letter or card.These white envelopes are ideal for office use.

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Detailed Description for White Envelopes

An envelope is a common packaging item, usually made of thin flat material. It is designed to contain a flat object, such as a letter or card.

Traditional envelopes are made from sheets of paper cut to one of three shapes: a rhombus, a short-arm cross, or a kite. These shapes allow for the creation of the envelope structure by folding the sheet sides around a central rectangular area. In this manner, a rectangle-faced enclosure is formed with an arrangement of four flaps on the reverse side.

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.



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:



-Corrugated fiberboard

-Polyethylene, often a coextrusion

-Nonwoven fabric

Padded mailers:

Shipping envelopes can have padding to provide stiffness and some degree of cushioning. The padding can be ground newsprint, plastic foam sheets, or air filled bubbles.


International standard size

 ISO 269 defines several standard envelope sizes, which are designed for use with ISO 216 standard Paper sizes:

FormatDimensions (HxW mm)Dimensions (in)Suitable for content format
DL 110 × 220 4.33 x 8.66 1/3 A4
C7 81 x 114 3.2 x 4.5 A7 (or A6 folded in half)
C7/C6 81 x 162 3.19 x 6.4 1/3 A5
C6 114 × 162 4.5 x 6.4 A6 (or A4 folded in half twice)
C6/C5 114 × 229 4.5 x 9 1/3 A4
C5 162 × 229 6.4 x 9 A5 (or A4 folded in half once)
C4 229 × 324 9.0 x 12.8 A4
C3 324 × 458 12.8 x 18 A3
B6 125 × 176 4.9 x 6.9 C6
B5 176 × 250 6.9 x 9.8 C5
B4 250 × 353 9.8 x 13.9 C4
E4 280 × 400 11 x 15.75 B4



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