A PROTECTIVE ENVELOPE CLOSURE

摘要

A protective envelope closure consists of a closure flap (2) and an adhesive (3) being uniformly provided on the closure flap, a anti-torn tape (4) also being provided on the closure flap. The anti-torn tape includes at least one line of weakness provided along the sealing direction of the closure flap (2), being arranged as a dotted line. The line of weakness is a short straight line of a thin bar shape, a short broken line, or a cross line composed of two short straight lines. A protective film is provided on the surface of the adhesive. The protective envelope closure may be against criminal opening.