Warm cold simple bag

摘要

(57) Abstract Objective Airtightness inside the sack was made complete, the cheap wind being agreeableIt is something which is made the good polyethylene make insulative insulated simple sack. Constitution The surface film which consists of the polyethylene filmWith formation and back film formation styrene type foaming resin sheetThere is no with bag body which consists of three layer system being superimposed area which formation inclusion is obtained,As for aforementioned each stratum as independence it is obtained mutually, this bag bodyTo provide the inside loop section in only the upper part opening, the aforementioned table section andWith thermal welding in the inside specified position row of the loop section of the reverse side section shiftThe conversion section inside the solidification section in the formation obtaining, the table section and the reverse side sectionProviding the linear sealing engagement piece of pair in the section, it becomes.