杭州pvb胶膜生产线

At present, there are two main methods for the production of PVB interlayer film, one is the over-roll method and the other is the water-pass method. The over-roll method is to produce a film by casting two rolls or three rolls (with a light roll and a pattern roll). The over-roll method has low investment, the technology is relatively mature, and the equipment is relatively easy to operate. The water-passing method is a process that is generally believed to produce a film with better whiteness and a more uniform pattern. It uses a water tank to cool the characterization instead of a roller, and then removes water, thickness, oven, cooling, separator composite, and traction. Finally, the volume is collected. Because the over-water method has more advantages than the over-roll method, it is used by more and more manufacturers. The following points in the production process of the water-passing method require special attention:

1、适应众多物料体系的不同类型加工1、适应众多物料体系的不同类型加工
2、从上料到收卷，全套集成，可以做交钥匙工程
3、产量大、耗能低，自动化程度高。

电气控制。做为一种高端应用产品，胶片的各个指标要求都很高，只有高度智能的自动化控制才能满足高品质产品的要求。其中挤出机的压力自调，收卷的张力控制更是重要。

PVB中间膜是由聚乙烯醇缩丁醛树脂经增塑剂塑化挤压成型的一种高分子材料