Folded envelopes, unitary blanks for forming folded envelopes and methods for manufacturing folded one-piece envelopes

摘要

An envelope is formed from a scored blank. The blank is folded to form the envelope and comprises a sheet with score lines forming the boundary of a central portion which comprises a front of the envelope. A closure flap is hingedly connected to the remainder of the envelope along one of the score lines. A safety flap, also connected to the envelope along one of the score lines, is under the closure flap.