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BAG BODY, BAG BODY MANUFACTURING APPARATUS MANUFACTURING BAG BODY, BOTTOM SEAL BAR USED FOR BAG BODY MANUFACTURING APPARATUS, AND METHOD FOR MANUFACTURING BAG BODY
BAG BODY, BAG BODY MANUFACTURING APPARATUS MANUFACTURING BAG BODY, BOTTOM SEAL BAR USED FOR BAG BODY MANUFACTURING APPARATUS, AND METHOD FOR MANUFACTURING BAG BODY
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机译:袋体,袋体制造装置,袋体,用于袋体制造装置的底部密封条以及袋体的制造方法
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摘要
PROBLEM TO BE SOLVED: To provide a bag body capable of reducing an adjustment amount of a position of a mountain fold line of a bottom film with respect to change in a position of an intersection point between an inside edge line of a side seal portion and an inside edge line of a bottom seal portion as much as possible.SOLUTION: A bag body has: a surface side film 11; a back side film 12; and a bottom film 13 which is folded into two and sandwiched between the surface side film 11 and the back side film 12. An inside edge line 26 of a bottom seal portion 25 has: a rising inclination line portion 261 rising from a central portion toward the outside in a width direction of a bottom film 13; and an inclination relaxation line portion 262 which continues into the rising inclination line portion 261. Inclination of a tangent in each point of the inclination relaxation line portion 262 is smaller than inclination of a tangent of a connection portion between the rising inclination line portion 261 and the inclination relaxation line portion 262. An inside edge line 22a of a side seal portion 21a has such a structure as to intersect with the inside edge line 26 of the bottom seal portion 25 on the inclination relaxation line portion 262.SELECTED DRAWING: Figure 7
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