How to make plastic clipboard?
There are many kinds of plastic film processing methods, such as calendering, tape casting, blow molding, drawing and so on.
In recent years, biaxially oriented film has become the focus of attention. In the future, biaxial drawing technology will be more developed towards special functional films, such as thick film drawing, thin film drawing, multi-layer coextrusion drawing and so on. Adapt to the continuous improvement of packaging industry requirements for packaging various functional film market develops rapidly.
The plastic film produced by biaxial stretching can effectively improve the tensile properties of the material. The tensile strength is 3-5 times of that of the UN stretched film. It has many properties, such as barrier property, optical property, heat and cold resistance, dimensional stability, thickness uniformity and so on. It has the characteristics of fast production speed, large production capacity, high efficiency and so on. The market develops rapidly.