The multi-layer laminating cot of the gray paperboard Composite Machine can be used for laminating and discharging multi-layer materials. The laminating tension of the materials is controlled by the magnetic powder tension controller. The waste discharging and winding up are controlled by the servo system. The tension and rotation speed can be adjusted intuitively and accurately through the touch screen adjustment. It also has the function of power-off maintenance, so as to reduce the tedious work of repeated adjustment and ensure the laminating materials Each group of laminating cots can independently adjust the pressure and clearance of upper and lower cots, and the operation is simple and convenient.

　　Uniformity of production pressure of gray paperboard Composite Machine

　　1. Increase the amount of glue, too little glue or no adhesive on the surface of part of the substrate will lead to the difficulty of bonding between the two substrates. We can choose the anilox roller with deep mesh hole, or increase the rubber roller pressure and reduce the contact pressure between the scraper and the anilox roller to increase the amount of glue on the surface of the substrate.

　　Too high or too low temperature will affect the adhesion. When the coating substrate is heated too high or cooked at high temperature, the surface layer of the adhesive will be carbonized, which will destroy the bonding ability of the adhesive. If the drying temperature is too low, the adhesive curing is not complete, the viscosity of the adhesive is poor, and the composite film is not strong. After a period of time, bubbles are easy to form in the composite film, which will damage the composite quality of the product.

　　3. If the compound pressure is increased properly, if the compound pressure of the Composite Machine is too large or the pressure at both ends of the composite roller is uneven, the surface of the composite film will be wrinkled, and an empty tunnel will be formed at the wrinkle after compounding, which will affect the bonding fastness of the finished product. Proper increase of composite pressure is beneficial to improve the bonding force.