| 摘要 |
PROBLEM TO BE SOLVED: To provide an alkaline dry battery capable of preventing a separator tip from buckling, and preventing an internal shortcircuit upon exposure to a vibration or a shock. SOLUTION: Separator base paper 21 wound like a roll is rotated in a horizontal direction, pulled out and cut to a preset size. Then, the tip of a separator 4 having a cylindrical part made by rotating the separator base paper 21 in a horizontal direction is bent radially inward with a gasket as a sealing body. Regarding a structure so formed, the ratio of the lengthwise tensile strength of the separator base paper 21 to the breadthwise tensile strength thereof is set to 2/1 to 1/1.
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