| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a packaging bag that can be easily opened along a predetermined opening line wherein the opened packaging bag can be used as a tray having a nice-looking opened shape. <P>SOLUTION: The packaging bag is provided for packing and packaging a content to be packaged inside a bag which is constructed by: forming a back seal 2 by roundly folding a rectangular plastic sheet and sticking its both end sides mutually in praying hands shape; and sealing openings along end sides perpendicular to the back seal 2 with end seals 3a, 3b, respectively. Here, the back seal 2 is located on the central line of the bag or on a position deviated from the central line toward either one end or the another of the bag, tearing parts 2<SB POS="POST">1</SB>are formed in a direction perpendicular to a length direction of the back seal at least near either one end of the back seal 2, opening cut lines 5a, 5b for opening the bag, extending substantially parallel to the back seal are formed near both ends of a bag face where the back seal 2 is located, and guiding cut lines 6a, 6b for opening from these cut lines toward the tearing parts 2<SB POS="POST">1</SB>of the back seal 2, are extendingly formed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
