| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique capable of achieving unchanged finger friction prevention effects even if some deviation occurs without requiring strict accuracy when a master roll sheet for production is cut into individual packaging containers for food, in the packaging containers for food that store food.SOLUTION: A plurality of recessed holes 31 are extensively formed on one surface of a flange 15 extending outwardly from a sidewall 12 to make both surfaces of the flange 15 rough. An end face of the flange 15 is constituted as a mixed cut face formed of recessed cut portions 32 that cut the recessed holes 31 and horizontal cut portions 33 that do not cut the recessed holes 31. |
