| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem with a conventional envelope, wherein when sending in confidential documents or a plurality of sheets of documents using an envelope with a window, those documents are often sent in by mail by using the envelope with the window to envelop them or direct mails are often directly sent in specific customers, thereby a mailbox of each customer is posted with a number of mail articles and deliveries in a day, each person selects necessary mail articles and deliveries from the number of mail articles and deliveries while searching over the range based on letter sender persons and the range that can be checked through the windows of envelopes, and only those selected mail articles and deliveries are opened and other mail articles and deliveries are discarded without even opening them. <P>SOLUTION: In the envelope with the window, a transparent relief hologram sheet is stuck to a window portion of the envelope with the window in order to differentiate the envelope with the window from other mail articles and deliveries. Furthermore, the envelope with the window is provided with the window enabling compatibility between transparence and clearness of hologram reproduction image, and thereby the opening rate is surely improved while ensuring the mail adequacy. <P>COPYRIGHT: (C)2012,JPO&INPIT |
