The early infrared bulbs mainly emitted near-infrared radiation, and the radiation material used was metal tungsten wire;
(plastic infrared dryer)The surface of the metal electric heating tube used in the 1960s is generally coated with low emissivity aluminum powder paint. As for the ceramic heater, its radiation performance is affected due to the complex composition of clay;
It was not until the mid-1970s(plastic infrared dryer) that people began to systematically study and develop infrared radiation materials and made a breakthrough.
In the 21st century, the development of dryer tends to the product structure of high quality, low energy consumption and environmental protection.
