1. Due to the large amount of powder sprayed between the trademarks printed by the offset printing machine, there will be a certain deviation in the die cutting process; and the surface of the trademark printed by the flexo printing machine is covered with UV varnish, so that the trademarks in the die cutting process There is no longer a small displacement on the plane, so that the pass rate of flexographic trademarks is 2 to 3 percentage points higher than that of offset printing trademarks.
2. If the paper is loose or has poor stiffness, every 500 or 1000 sheets should be die-cut with a layer of cardboard. However, it should be noted that it is necessary to check whether there are large hard particles on the surface and inside of the cardboard, because particles larger than 0.3mm are enough to damage the cutting edge of the die cutting tool.
3. If the front of the printed product is curled up, the back mold should be used, and when the front of the printed product is curled down, the positive mold should be used.
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