The present invention relates to a packaging cold storage bag in which an outer surface of a heat insulating material and an inner surface of a cold insulation material are integrally formed, and it is easy to fold and store, and the lower part can be spread out when in use. an outer surface to insulate; an inner portion formed of a cold storage material to keep the packaged product packaged therein; And in a state where the outer and inner parts are laminated, only the upper part is opened and the remaining edge parts are sealed to form a bag.
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