The PVB glass interlayer film production line is a professional equipment designed and produced by our company in combination with the latest foreign design concepts and referring to the production characteristics of PVB interlayer film.
Since 2012, the company has successively produced PVB glass interlayer film production lines with specifications such as 2800mm, 3550mm, and 4200mm, with a maximum output of 800kg/H and a thickness of 0.38-1.5mm.
The features of our company's PVB glass interlayer production line are as follows:
Water Tank Design: The size and number of water tanks are directly related to the speed and output of the production line. Ensuring uniform water temperature and stable water circulation is of utmost importance.
Airflow and Air Knife Design: Excessive moisture retention over time can negatively affect film quality. Currently, a 4-air knife system is widely adopted, which is sufficient in number. The key lies in the design, selection, and positioning of the air knives.
Oven Heating and Cooling: To enhance production capacity and ensure high-speed operation of the production line, our company has developed unique insights and designs for the oven, heating, and cooling sections. In addition to removing excess moisture from the film, the oven plays a critical role in eliminating internal stresses. Thoroughly removing internal stresses from the film effectively prevents thermal shrinkage during high-temperature lamination with glass, enabling better control of thermal deformation.
Electrical Control: As a high-end application product, the film must meet stringent quality standards. Only highly intelligent automated control systems can fulfill the requirements for producing high-quality products. Key aspects include the self-adjusting pressure of the extruder and the tension control during winding.
Currently, there are two main production processes for PVB interlayer films: the roller method and the water bath method.
Roller Method:
This method uses two or three rollers (including smooth rollers and patterned rollers) to cast the film. The roller method requires lower investment, is relatively mature in terms of technology, and the equipment is easier to operate.Water Bath Method:
Widely regarded as producing films with better whiteness and more uniform patterns, the water bath method employs a water tank for cooling and shaping instead of rollers. The process involves steps such as water removal, thickness measurement, oven drying, cooling, laminating with a release film, traction, and finally winding.
The PVB glass interlayer production line has the following features:
Adaptable to various material systems and different types of processing
Fully integrated from material feeding to winding, capable of serving as a turnkey project
High production capacity, low energy consumption, and a high degree of automation.
