What is the difference between traditional 3D printing and 3D direct printing technology? This is inextricably linked to the use of printing equipment. First, the two methods of traditional 3D printing are explained:
1. The printing device on the substrate 3D prints the rasterized image and pastes it with the grating film to obtain a 3D stereoscopic image;
2, UV printing 3D raster image on the grating film, and then get 3D stereo image, which is one of the characteristics of the printing equipment;
For the traditional grating film 3D printing, the most important one is the grating film substrate, and the grating film as a plastic product has three major disadvantages in the application of packaging and printing products.
First, the material environmental protection is worrying
1. Plastics are made from petroleum-refined products, while petroleum is a limited resource.
2. Plastics are easy to burn and produce toxic gases when burned. In high temperature environments, plastics can also be decomposed into toxic components.
3. Plastics cannot be naturally degraded and buried in the ground for many years without corrosion.
4. Waste plastic recycling is difficult and economically uneconomical.
5. The manufacturing process of plastics is a high energy consumption industry, which consumes more social energy in the production process.
Second, the application cost is high
As a packaging material, film is affected by processing technology. Generally, the whole package is made of grating film, which is less suitable for local application. Even if the partial application is also applied, the partial adhesion method will affect the overall appearance and appearance of the package. Therefore, it is generally not used.
Third, the lack of packaging application
1. Compared with paper materials, plastic materials have poor forming properties and high molding difficulty.
2. Paper materials can be applied to various printing and post-processing processes, but the decorative printing and processing adaptability of plastic surfaces is not as good as that of paper materials.
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