Apex and the cartridge head where the liquid form container which consists of the paper lamination material whichPROBLEM TO BE SOLVED: To provide a preliminary heater of a sealed portion of a top or the like of a paper container for liquid which is capable of easily controlling the heating ...
Provided are an opening device and a liquid food container, wherein a sealing property is superior and a straw hole can be easily opened, and from which the liquid food can be drunk with a straw, can be directly drunk with the mouth, and can be poured. Disclosed is an opening device ...