| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a carton zipper having a configuration to be easily opened whichever end the zipper is opened. Ž<P>SOLUTION: A carton with a zipper utilizes the carton zipper having a configuration described as follows. A cut line consists of main cut lines having small gap widths between their respective cut lines provided discontinuously on two rows of zipper lines to be torn along an unsealing direction, and auxiliary cut lines provided discontinuously inside of the zipper line in a predetermined width in parallel with the zipper line. The main cut line has the shape formed of a straight line portion and slant line portions extending at an obtuse angle from both ends of the straight line portion toward the auxiliary cut lines. The length of the auxiliary cut line is equal to on longer than the distance between the front ends of the slant line portions of the adjacent main cut lines, and is shorter than the length of the main cut line, in a position where the auxiliary cut line is shifted in parallel in the inside direction of the zipper line in the predetermined width. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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