Filling port sealing structure for yokan packaging container and method for filling filling port of yokan packaging container

摘要

PROBLEM TO BE SOLVED: To provide a filling mouth sealing structure of a yokan packaging container and a method for sealing the filling mouth of a yokan packaging container, which can suppress the deformation of the filling mouth side and contribute to the improvement of the aesthetics and the sense of quality of the peeled yokan meat. provide. SOLUTION: The filling port side of the yokan packaging container 1 is heat-sealed without being folded inward to form a flat seal portion 19, and the flat seal portion 19 is bent along an end face 21 having a rectangular parallelepiped shape, and then the end face 21. The part projecting outward from the pair of opposite sides 21a, 21b is bent inside the end face 21 while being pressed by the first guide plate so that the pressure when bending does not affect the solidified shape of the filled yokan. The part projecting from the remaining one side is pressed by the second guide plate, is bent inward of the end face 21 to cover substantially the entire end face 21, and is bonded so that the state is maintained. [Selection diagram]