What is the difference between matte film and pre-coated film? -Film supplier
The extinction effect is usually achieved by absorbing and scattering light. Because plastic products generally absorb less light, and film products absorb light more negligibly, in practice, scattering methods are often used to achieve extinction. There are usually two ways to achieve scattering and extinction: one is to increase the surface scattering and extinction of the product, and the other is to strengthen the product body to diffuse and extinction. Surface scattering is achieved by improving the surface roughness of the product. When the incident light hits the rough surface, the specular reflection is replaced by diffuse reflection. The essence of diffuse reflection also obeys the law of reflection. The diffuse reflection will interfere with each other to increase the intensity of the scattered field. Large, the intensity of the specular reflection is greatly reduced, achieving the purpose of extinction. Processing conditions and material properties have a great influence on surface scattering. The main body eliminates the optical non-uniformity of the light source to the main body. The optical non-uniformity is caused by the particles, molecules, or atoms inside the substance, and is closely related to the physical properties of the material. The most critical factor is the difference in refractive index of each micro-region within the product. The refractive index between the crystalline and amorphous regions in a single polymer product will be different, and the refractive index of the micro-region of plastic alloy or composite material will also be different and greater than The difference in refractive index between the crystalline phase and the amorphous phase in a pure polymer. When light penetrates the surface of the product and enters the interior of the product, the optical inhomogeneity inside the product causes the light to be refracted multiple times. Each refraction will be accompanied by scattering and cause loss of light intensity, increase the scattering of the body, and thus penetrate in the incident direction. The light of the product will be greatly weakened. Both the pre-coated film and the matting film have the characteristics of easy operation, high efficiency and energy saving, and adapt to a wide range of models. In addition, it is non-toxic, tasteless, and benzene-free. No polluting gases and substances are produced during the coating process. It is now widely used in various industries. The supplied DuPont matt film and motor film have a certain matting effect. It is a company specializing in the production of PET film with multiple functions, such as: transparent PET film, milky white PET film, release PET film, supply of PET motor film, etc. With a wide variety of products, affordable prices, and environmental protection, we provide customers with excellent quality and service based on the service tenet of excellence in production, honesty and trustworthiness in distribution, and warm and thoughtful service, and the spirit of assisting partners to achieve their own careers. Interested parties welcome to inquire!