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Refined Process flow

According to the formula, put the required raw and auxiliary materials into the high-speed mixer and mix them evenly for about 8 minutes, then enter the high-speed internal mixer, through the temperature control of 140 ℃-150 ℃, the preliminary plasticization takes about 8 minutes After that, it is sent from the hopper to the two rollers for open mixing, fully plasticized and then sent to the filter, through the multi-layer filter to remove the impurities contained in it, to ensure the quality of the PVC film, and finally sent to the Calendering host by the conveyor belt and controlled by the four rollers , To form a PVC film of the required thickness, and directly press it on the coated grey cloth through embossing rollers and rubber rollers, and directly wind up on the A-frame after cooling.

Through a complete set of Process flow, it is necessary to ensure that the thickness error of the PVC film is controlled within ±1 silk (1 mm = 100 silk), without trachoma, to ensure the color difference requirements, the peeling fastness between the PVC film and the gray fabric and other quality requirements.