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How the calender works

Author:Jiangyin roll machinery co. LTD Publications: 14/06/2018 Click:
The calender is a device used to improve the gloss of the paper, and is a kind of calendering and glazing process. After the surface of the printed product is coated, the glaze layer is dried. If it is necessary to improve the smoothness and glossiness of the glaze coating again, it can be calendered by a calender.

 
The working mode of the calender is usually continuous rolling. The printed products are transported from the paper conveying table to the calender belt between the heat pressing roller and the pressure roller. Under the effect of temperature and pressure, the coating is attached to the surface of the calender belt and is calendered. The calendered paint layer gradually cools to form a bright surface layer. The calender belt is a specially treated stainless steel ring-shaped steel belt. There are multiple sets of far-infrared heating sources inside the heat pressing roller to provide the heat required for calendering. The pressure of the pressure roller mostly adopts the electro-hydraulic pressure regulating system, which can accurately meet the pressure requirements in calendering. The calendering speed can be controlled by a speed-controlled drive motor or a slip motor.

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