PC+TPU Case Adhesion Solution

The mobile phones we use basically have a mobile phone protective case to protect the mobile phones. This case has also been upgraded along the way, from basic simple protection to comprehensive protection. It is also beautiful and beautiful. The most important thing is to hold it every day and feel comfortable. Previously, it was a simple transparent PC shell or a transparent TPU shell

The mobile phones that we use basically have a mobile phone protective case to protect our mobile phones. This case has also been upgraded along the way, from basic simple protection to comprehensive protection. It is also beautiful and beautiful. The most important thing is to hold it every day and feel comfortable. Previously, it was a simple transparent PC case or a transparent TPU case. This kind of mobile phone protective case can no longer meet the needs of consumers, Recently, a PC+TPU iPhone 13 mobile phone case has been produced, which has strong protection function and is resistant to falling. However, the periphery is molded by the middle PC of the TPU. In order to meet the skin feeling requirements of consumers, the surface of the case needs to be sprayed with touch rubber oil. However, the case is a combination of two plastic materials, so there is a very high requirement for the adhesion of the paint. The stronger the primer, the better the adhesion of the TPU. However, the PC at the location where the TPU is connected has a PC crack problem, If the primer is weakened, the TPU will not have enough adhesion and perform well in the Baige test and wear resistance test. Because TPU material is a material between rubber and plastic as an elastomer, it is difficult to realize the problem of no oil loss due to its strong oil resistance. After hundreds of adjustments and verifications by our technicians and material manufacturers, this technical bottleneck was finally overcome, a special paint was developed and mass production was successfully realized. Operation method: Carefully clean the surface of the material with high-purity white electric oil, spray PC+TPU special treatment agent on the material, bake it at 55 degrees for about 10 minutes, and then spray the primer, changing from two coats to three coats. The rubber oil and UV sprayed on the final surface have no impact. We are a professional plastic surface spray, screen printing, pad printing processing; The paint performance can be adjusted according to customer requirements, and the surface can reach the test of high friction resistance, ultraviolet resistance, alcohol resistance, cosmetics resistance, etc. The new 280M three coat three bake is used, which is suitable for the UV/PU/rubber oil processing of various electronic product shells, mobile phone shells, mobile phone protective case shells, beauty instrument and other shells.