| 摘要 |
PROBLEM TO BE SOLVED: To provide an envelope which is more easily unsealed than a commercially available envelope and enables office work processing to be efficiently carried out. SOLUTION: (1) Two upper and lower cut lines are formed in a perforated shape with an interval of 2.2 mm at a place which is 5 mm above the fold of the envelope. (2) Small cuts (a part for pick up) are formed at the right and left ends of the two cut lines for easily unsealing the envelope as shown from the rear side of the envelope. (3) An aluminum foil tape with paste having a width of 2 mm is stuck between the upper and lower cut lines. (4) Both an envelope for vertical writing and an envelope for lateral writing are used in common. COPYRIGHT: (C)2008,JPO&INPIT
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