Self-sealing sleeve
A technology of envelope and back cover, which is applied in the field of documents and materials, can solve the problems of easy falling of printed documents and environmental pollution, and achieve the effects of shortening working hours, protecting the environment and saving labor
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[0015] A self-sealing envelope, consisting of a front cover and a back cover attached to it, such as figure 1 As shown, the right edge of the back cover is connected with a sealing ear 1 that can be opened horizontally, and the lower edge of the back cover is connected with a sealing tongue 2 that can be opened vertically. The bayonet socket 201 that the slots are plugged into. Also have the business card socket 202 that is used to insert personal business card on the sealing tongue 2.
[0016] When applied, such as figure 2 As shown, first fold the ear 1 connected to the right edge of the back cover horizontally to the inner side of the back cover, then fold the flap 2 connected to the lower edge of the back cover vertically to the inner side of the back cover, and fold the tab on the flap 2 The mouth 201 is inserted into the card slot 101 on the ear 1 , so that the tongue 2 and the ear 1 are connected as a whole to form a file storage bag.
[0017] The new type of envelo...
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