Continuous process laminating and embossing machines typically heat and cure a number of substrates together before embossing a textured finish to one or both sides. Depending on the finish desired, calendar rolls may also be used for to modify smoothness, surface luster and thickness uniformity. Heat energy is added to the process by use of heated rollers and electric or gas infrared panel heaters.
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Product temperature needs to be measure at various stages of the process for closed loop control of heating, curing and cooling. Product surface temperature homogeneity across the web before embossing needs to be identified so that defective sections of the finished product can be removed from the windup roll.
- IR spot sensors measure temperature to optimize heating, curing and cooling phase
- IR linescanner measures temperature to detect breaks, tears or wavering edges to reduce scrap
- IR linescanner to visualize the web for checking even temperature distribution
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