Graphic overlay with adhesive Capacitive touch membrane panel keboard graphic overlay

From material to material The main materials suitable for making membrane panel are: PVC (polyvinyl chloride), PC (polycarbonate) and PET (polyester), with the thickness of 0.125 \ 0.175 \ 0.25, and three surfaces of sand, matte and smooth. The physical and chemical properties of PC material are good, and it can adapt to many kinds of inks. It is the most common material for membrane switch panel. PC materials can be divided into sand surface and smooth surface. The reason for choosing sand surface materials is that the use of film switches is mostly electronic products, and the panel used as the control system does not want to be interfered by light, while the sand surface is only diffuse reflection, which will not produce bright reflection; at the same time, because the surface is disordered sand like, it has the function of masking scratches. In contrast, smooth materials do not have the above characteristics. But as a smooth material, if combined with the back printing, the color will appear more brilliant. In the case of strong decorative requirements and not frequently touched, the panel is often made of smooth materials, or due to the special needs of some display areas such as LCD, it is more favorable to choose smooth materials. The price of PVC material is lower, about half of PC material. When producing popular civil products, PVC material can reduce production cost. At the same time, PVC material has good ductility, and can be used to cold press three-dimensional graphics.