| 摘要 |
PURPOSE: A double bag for heating is provided to efficiently heat water stored in a cup or a bottle by transferring heat to water in all directions. CONSTITUTION: A double bag for heating comprises an external bag(110), an internal bag(120), a steam exhaust pipe(130), and a connection string(140). The external bag is composed of an impermeable material and accepts a heating material or water. The internal bag is composed of an impermeable material and is accepted in the external bag. The internal bag accepts a heating material or water in which the external bag does not accept. The steam exhaust pipe is extended from one side of the external bag. One end of the connection string is attached on one side of the internal bag, and the other end is protruded to the outside through the steam exhaust pipe. When the connection string is pulled, the internal bag is torn away, and heat is generated. |
