PVC Film Process

PVC is widely used in the building materials industry for two main reasons: firstly, its unique properties (rainproof, fire-resistant, antistatic, and easy to mold); and secondly, its low-input, high-output characteristics. So, why does PVC possess these two advantages? Let's find the answer in its production process.

The PVC production process is not complex. A typical production line consists of a roller press, a printing machine, a back coating machine, and a cutting machine. The roller press primarily uses direct stirring, roller rotation, and high-temperature rolling to produce films with a thickness of only 0.3 mm to 0.7 mm. Simultaneously, the printing machine prints patterns on the front of the film, and the back coating machine applies a back coating to the back. Don't underestimate this back coating; it's a crucial guarantee of the PVC film's superior performance. The back coating is composed of special materials, a high-energy affinity agent. It is precisely because of this back coating that the PVC film can bond tightly to MDF or other boards, remaining glue-free for ten or even fifteen years. The biggest problem with ordinary laminated films is their inability to solve the problem of film peeling. Because the entire production process is carried out at high temperatures (the temperature inside the rolling mill reaches 220 degrees Celsius), PVC film possesses high light resistance and fire resistance, ensuring its high quality. Of course, this places high demands on the production machinery; typically, the cost of a complete production line is approximately 39 million marks, equivalent to about 160 million yuan. However, the production process for PVC film is quite simple, and the machine output is substantial. Therefore, overall, PVC is actually a low-input, high-output product.