The appearance of street lights began to use thermal transfer technology solar street light-litersolar to produce

As the appearance of street lamps is becoming more and more diverse, the patterns are becoming more and more particular, and thermal transfer technology is also used in the needs of the appearance of street light poles, so let's take a look at what thermal transfer printing is: thermal transfer printing Film product introduction: Thermal transfer foil is made of polyethylene film as a backing paper with a wood grain decorative layer printed on it. The surface is coated with protective layer, base color layer, release layer and hot melt adhesive layer. By heating a high-temperature silicon roller, temperature and pressure are applied to the transfer foil, so that the transfer layer composed of decorative wood grain printing layer, surface protection layer, and base color layer is separated from polyethylene and transferred to the surface of wood-based panels or furniture parts Above, a decorative surface is formed, and the surface has excellent properties such as wear resistance, heat resistance, light resistance, novel and beautiful patterns, stable color tone, and is a good decorative material. The advantages of thermal transfer printing decoration process: 1. Thermal transfer printing is a dry production process, with a single process, and the entire work can be completed without adhesive. 2. Thermal transfer printing can be excellent in decorating the edges of parts, boards, and even edge finishes. 3. Thermal transfer printing can not only make the product look and feel, but also have a real wood feeling. 4. The performance of thermal transfer coating exceeds that of general finishing. 5. The bonding between the decorative layer and the substrate is seamless, and there is hardly any gap visible to the naked eye. 6. After using thermal transfer printing, the parts can be immediately transferred to the next process for processing. 7. It can be covered on the thermal transfer layer. Determination of the use parameters of thermal transfer film: Thermal transfer film has its own unique properties. In order to obtain the ideal hot stamping effect, the best temperature, pressure and speed must be strictly controlled. These are the three major process parameters. 1. Determination of temperature: when the temperature is too low, the hot stamping will not be able to be applied or the hot stamping will not be strong, and the imprint will be blurred; if the temperature is too high, the surface of the color layer will be oxidized, which will make the product lose its luster, and the color will become darker. will bubble. To determine the best hot stamping temperature should consider the following factors: pressure, speed, area, room temperature and so on. The hot stamping temperature generally ranges from 140°C to 180°C. Once the optimum temperature is determined, it should be kept constant, and the temperature difference should fluctuate within ±2°C. 2. Determination of pressure: The hot stamping pressure is generally 4-6 kg/cm2. If the pressure is too small, the hot stamping film cannot be adhered to the substrate, which reduces the fastness; if the pressure is too large, the compression deformation of the substrate will increase, resulting in the deformation of the pattern and the thinning of the printing layer. If you are stamping complex and uneven products, you should pay more attention to the uniformity of each pressure point, and the pressure angle between the stamping wheel and the substrate is required to be higher. 3. Determination of speed: It should be determined according to the hot stamping area, and the power of heating temperature should be considered at the same time. Generally, the speed is first, then the pressure is determined, and finally the temperature is determined.