| 摘要 |
An envelope (11) consisting of a front side (12) and a rear side (16) which are interconnected by side flaps (19), has a fold-back flap (18) to which a layer of contact adhesive (23) is applied. The adhesive used is a strong contact adhesive which is effective without moistening or activation by any other means. The fold-back flap is laid against the rear side (16) of the envelope for the purposes of transport and storage, an area (22) coated with a parting agent being provided so that the adhesive can be detached before use. The envelope is closed by pressing the otherwise uncoated closing flap (14) onto the adhesive-coated fold-back flap. The adhesive is applied to the fold-back flap (18) by transfer, i.e. the adhesive is applied to the parting agent layer (22) during production and then transferred to the fold-back flap when the latter is redressed. |
