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The process of PVC color film
Jan 26, 2018

The reason why PVC is widely used in the building materials industry has two important reasons:

One is PVC's unique performance (rain proof, fire resistance, antistatic, easy to form), and two is the characteristic of low input and high output of PVC. So, why can PVC have the above two advantages? Let's find the answer from its production process.

PVC production process is not complicated, the ordinary production line consists of roller press, printing machine, back coating machine and cutting machine, mainly through direct stirring roller, roller rotation and high temperature rolling production film thickness is only 0.3 mm to 0.7mm, and through the production at the same time the printing machine in front the color film, through the back coating machine in the back of the membrane attached to a layer of back coating. Do not look down on this layer, it is an important guarantee for the quality of the PVC film. Back coating made of special material, is a kind of high affinity agent, it is because of this layer back coating PVC film can be tightly and MDF or other plates together, ten years or even fifteen years is not open. The biggest problem of ordinary mask is that it can't solve the problem of film falling off. Because of the whole production process is at a high temperature (the temperature rolling machine reaches 220 degrees) carried out, which makes PVC film with high resistance to photobleaching and refractory, ensure the high quality of PVC film. Of course, the demand for production machines is very high. Usually, the cost of production equipment for a production line is about 39 million Mark, which is about 160 million yuan. But on the other hand, the production technology of PVC membrane is quite simple, and the output of machine is also very large. Therefore, PVC is actually a product with low input and high output.

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