Recently, Japan developed a heat-generating paper whose raw materials are glass fiber and carbon fiber. This kind of paper is difficult to make, it must be controlled according to the requirements of the design of the formation of the paper when forming the orientation of the fiber, so that the paper inside the "circuit network" vertically and horizontally, "current channel" ring connected, otherwise it is not easy to produce Heat effect. The most important difference between heating paper and plain paper is that the former cannot be arbitrarily cut, and a 12-volt dry cell must be connected to the “end†of the finished product to generate heat. The application prospect of this kind of paper is very tempting: sticking the heat-generating paper (hanging) on ​​the wall, after the electricity is turned on, the temperature in a certain space rises to achieve the purpose of heating, which is undoubtedly a comparison for travelers and explorers who go out in winter. Great attraction. In addition, the use of heat-generating paper to wrap bread, cooked meat, etc., can make food hot and delicious. There is an effect of replacing the microwave oven, and it is also expected to be applied to the hot therapy of the hospital.