What are the causes of inaccurate or erratic carton printing positions? What should I do.
Date：
2022-09-23
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We often encounter this situation in the carton printing process, that is, the printing position is inaccurate or unstable. So, what exactly causes this problem and how can we avoid and deal with it? Here are some common problems and solutions.
Printing Department
Cause 1: Caused by warping of corrugated board
If corrugated cardboard is warped poorly, it is easy to slip during the positioning and feeding process, and even the rules on the machine cannot touch the paper edge, resulting in inaccurate or unstable cardboard printing positions.
Method.
When printing on warped corrugated cardboard, try to use a relatively flat paper edge as the regular paper edge when feeding the paper. The important thing is quality source control. Through reasonable control of the single-sided machine operation process, machine speed and preheating temperature, raw paper moisture content and preheating zone are in a relatively coordinated state; when matching paper, pay attention to moisture Corrugated board and corrugated paper are laminated together to form a mating pattern, so that the produced corrugated board has a relatively good flatness, which can effectively ensure the accuracy of the printing position.
Cause 2: Caused by improper operation process
If the loading position is improper, it is easy to cause the layout printing position to be inaccurate. This is because corrugated cardboard with warpage defects just enters the printing rollers, and if there is a slight slippage, the tip of the cardboard will be significantly skewed.
Method.
When corrugated cardboard has a colored layout, the paper should be oriented toward the starting position of the rollers as much as possible, and the appropriate measures should be determined accordingly. Only when the parts are loose can the accuracy of the printing position of the corrugated board be ensured.
Cause 3: Bad machine caused by
When the machine's chain, rules and other parts are loose, it is easy to cause the printing position of the layout to be inaccurate.
Method.
Only when the parts are loose, measures should be taken to ensure the accuracy of the printing position of the corrugated board.
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