Envelopes
An envelope or envelopes are a form of packaging usually made from a flat material such as paper or cardboard and is designed to contain a flat object, such as a letter or card. In some cases a form of padding is used which could be bubble film to give the contents of the envelope or envelopes a layer of protection. For larger items gusset envelopes are available which have concertina like edges to allow for the insertion of larger items such as books.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. Envelopes are generally available in a variety of colours, with the most popular being white and manilla. When the folding sequence is such that the last flap to be closed is on a short side it is referred to in commercial envelope manufacture as a pocket envelope, a format frequently employed in the form of wage envelopes. Envelopes with a large V shaped flap like that of a birthday card envelope are referred to as banker envelopes. The other form of envelope available is referred to as wallet envelope which open along the longer side of the envelope with a shorter squarer flap. Although in principle the flaps can be held in place by securing the topmost flap at a single point (for example with a wax seal), envelopes that are produced today are already pasted or gummed together at the overlaps. They are most commonly used for enclosing and sending mail (letters) through a prepaid-postage postal system. Window envelopes have a hole cut in the front side that allows the paper within to be seen. They are generally arranged so that the sending address printed on the letter is visible, saving the sender from having to duplicate the address on the envelope itself. The window is normally covered with a transparent or translucent film to protect the letter inside. Security envelopes have a patterned tint printed on the inside, which makes it difficult to see the contents. Various patterns exist. Most envelopes produced today have this form of security as standard. Please click her for our envelope sizes guide.
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