If the corrugated board is warped badly, it is easy to move in the process of cardboard positioning and paper feeding, and even the rules on the equipment can't touch the paper edge, resulting in that the printing part of the cardboard is prohibited or not maintained. When printing the expanded and contracted corrugated board, try to use the relatively flat paper edge as the regular paper edge accurately positioned during paper feeding.
Paper box: the most important thing is quality control, which can be controlled effectively according to the actual operation process of the single-sided machine, so that the speed of the equipment preheats the ambient temperature, and the moisture content of the base paper and the total preheat area are in a relative match; Paper box: when preparing paper, pay attention to carrying out supporting facilities to mount the cardboard and corrugated cardboard with the closest moisture content. The corrugated cardboard produced in that way has relatively good flatness and can effectively ensure the accurate printing position.
Inaccurate printing position caused by unreasonable processing technology in actual operation
If the loading position is unreasonable, it is also easy to cause inaccurate printing position. Paper box: when corrugated board with warping defects enters the roller of the printing plate for the first time, if there is a small amount of movement, the position of the supporting tip of the cardboard will be obviously inclined. Therefore, for corrugated board with overprinted layout, it is necessary to carry out accurate positioning of the paper feeding from the house toward the roller development position as far as possible, and take corresponding countermeasures accordingly. only after removing the looseness of parts can the accuracy of the printing position of corrugated board be ensured.
Poor equipment results in inaccurate positioning paper box: when the transmission chain, regulations and other parts of the equipment are loose, it is also easy to cause inaccurate printing position of the layout. Corresponding countermeasures should be taken to deal with this matter. only after the loose parts are removed can the accuracy of the printing brush position of corrugated paper board be guaranteed.
Some of the above-mentioned product quality problems often occur in printing are caused by poor machinery and equipment, and some are caused by operational errors. In addition, we should not only carefully repair and maintain the machine, but also strictly manage the correct safety operation procedures. only in this way can we better avoid or reduce the birth of poor quality problems, so that production capacity and product quality can be improved synchronously.
