Common problems and precautions of PET release filmCommon problems and precautions of PET release film
PET release film is economical and environmentally friendly and is more and more widely used in various industries. But it will bring us benefits and convenience, but it will also cause some trouble, because there will be some problems in the process of use. So which manufacturer problems will occur in the process of use, and what should be paid attention to?
1. The surface static electricity of the release film, if the static electricity of the release film is too large, the film surface will easily adhere to the dust particles, affecting the quality of the board surface; the same reason, in order to reduce the static electricity of the release film, the release film is wound around the coating And when cutting, special treatment should be done for static electricity.
2. The cleanliness of the release film is currently an important factor restricting whether high-quality PET release film can be widely used in HDI production; therefore, the manufacturer or supplier of high-quality and durable PET release film, in When coating, winding and cutting the release film, it must be operated in a clean room. The clean room must reach the level of 10000 to ensure the surface cleanliness of the release film, so as to ensure the quality of the board surface after RCC pressing.
Third, pay attention to distinguish the front and back sides of the single-sided release film. Since the single-sided PET release film has only one side released and the other side is the PET substrate surface, if the release film uses the wrong surface, it will result in the lower plate after pressing , The film sticks to the board surface, it is difficult to tear off. There are the following methods to distinguish between the front and back sides: (1) stick the PET release film surface with adhesive paper, if it can be adhered, it is the PET substrate surface, and the non-stick surface is the release surface; (2) do the front side on the film surface , The reverse sign, distinguish the front and back (usually provided by the supplier).
In addition, you should also pay attention to the temperature of the PET release film press plate, the material temperature is lower than the temperature of the platen table, because the current temperature of the PET release film is about 200 degrees Celsius, if the temperature of the platen table exceeds this degree, the PET release film Aging and brittleness will occur, and there may be problems of sticking the board or contaminating the board surface. If users can pay attention to the above precautions, they can effectively avoid the occurrence of various common problems.If you want to know more about it please do not hesitate to contact me. WhatsApp:+86-15966835076