The reason why the film wrinkles during the printing process of plastic flexible packaging

December 20, 2023

The main reasons for the wrinkling of the film during the printing process of food plastic flexible packaging are as follows:
1. First of all, it is necessary to see whether the shaking of the printing plate is greater than 0.1~1mm when the high-speed rotation is performed. Whether the door plug is evenly called, whether the door plug is in the central axis in the plate loading, whether the shaking range is also between 1~1.2mm, if If the shaking is too large, the plate press shaft has a high and low unevenness, one side is tight, and one side is loose, so that the side is wrinkled. The treatment method is to reduce the plate error shaking rate to a minimum or to place the door plugs smoothly and reduce the plate shaking.
2. When printing the pickup roller plate, there is a side high, one side is low, the direction is adjusted low, and the pressure is slowly pressed downward until the two sides of the film are flat.
3. The aluminum sticks printed on the printing plate or printed on the printing plate are uneven. Adjust the aluminum stick level.
4. When the printing film is printed at high speed, the ink sticks on both sides of the pressure roller or the pressure roller is uneven. The treatment method is to remove the ink stuck on both sides of the pressure roller and replace it with a good pressure roller.
5. The thickness of the edge of the printed film is uneven, and the tension of the unwinding of the printed film is too large to cause jumping. When the winding is too small, the tension is too small to cause uneven force in and out. The treatment method is to change the membrane, measure the membrane, reduce the tension control, and make the force uniform.

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Stainless steel plate surface smooth, high plasticity, toughness and mechanical strength, acid, alkaline gas, solution and other media corrosion resistance. It is an alloy steel that does not rust easily, but not absolutely. Stainless steel plate refers to the corrosion resistance of weak medium such as atmosphere, steam and water steel plate, and acid resistant steel plate refers to the corrosion resistance of chemical etched medium such as acid, alkali, salt steel plate.

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Shandong Xinsuju Steel Co.,Ltd. , https://www.sawlpipe.com