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1. Silicone cover: It is relatively soft and easy to disassemble. This material has a low cost and is easy to deform. The main reason is that the color is easy to turn yellow. , can protect the mobile phone. The biggest disadvantage is that the heat dissipation is extremely poor, which affects the speed of the machine. You can think about how you feel in the hot summer when you wear clothes made of this material close to your body and it is not breathable. Therefore, this material is generally suitable for wholesale, and the price is relatively cheap. It is suitable for some brands whose mobile phones are not too expensive and users who do not have high requirements for mobile phone cases.

Comparison of mobile phone cases with different materials

2. TPU (Thermoplastic polyurethanes) thermoplastic polyurethane elastomer rubber, this material is wear-resistant, oil-resistant, and moderately hard. It is the choice of most mobile phone case brands. It usually adopts the printing process and can be customized in batches without much money. Open a small workshop, and then 1 and 2 are more flexible, but the disadvantage is that the ink is on the surface, the imaging is poor, it is easy to fade, and it is especially easy to get dirty. Regarding fading, many people know that ink is poisonous. You can think about it. The number of times you grab your mobile phone, button your nose, and eat every day is undoubtedly equivalent to chronic suicide. Extremely unhygienic, and after a while, it becomes discoloured and dirty, which is very unsightly.

3. IMD (In-Mold Decoration) injection molding process, which is an internationally popular process used in Wulu since then. In fact, this process has been around for a long time, and the story will not be told anymore. However, due to the fact that the cost issue has not been applied to the field of product design, the IMD process adopts in-mold high temperature injection molding. The molding of a mobile phone case requires multiple processes such as mold release, film release, printing, cover whitening, injection molding, hot pressing, and quality inspection. The picture is implanted in the middle layer of the shell, which will never fade or turn yellow, the shell is polished, the imaging has a strong three-dimensional effect, high-definition, and it will be clean when it is dirty. Relatively speaking, there are still many advantages. But the disadvantage is that because it is plastic, even the highest hardness can not compete with metal materials, so there will be scratches. People who use iphone4s will know that the back shell of the phone case is made of IMD technology, and you can pick it up to see if there are scratches. This is the reason why the i5 was replaced with metal material. Jobs also explained to users that this is a trace of the years. In fact, traces are traces, and each object has its advantages and disadvantages. (The hardness of dust particles is 8H, and the cost of objects with high hardness in nature is relatively high, such as diamond and diamond glass.) If this material is used, not to mention the imaging, the cost will be terrifyingly high. In addition, because it is printing, it must require a certain amount of manufacturers to do it.

4. Regarding other production processes: frosted and frosted are the processes that some low-key users prefer, but if they are compared with imd process, the imaging is more gray and glossy, and people who have no aesthetics can also distinguish between good and bad. Using the TPU process, since the imaging is directly on the shell surface, the imaging is poor due to the properties of the shell material (IMD process graphics are imaged on the PE mold sheet). Therefore, the shells we usually see are mid-priced, and many of them are made of this material and craftsmanship. Most are directly printed. Printing and printing quality will not be discussed here. Regarding polishing, it can make the color brighter and play a role in preventing dust and dirt, not to mention gold printing. Relief, there is a type of printer, usually based on tpu, pc sheet imaging, ink on the surface. As for the water stickers, it is easy to fall off and get dirty. As for the oil, it feels better, and it is easy to get dirty and the image is poor.