1、机器压印关联部件不良引起的质量故障
1. Quality failure caused by poor related parts of machine imprinting
当印版辊筒轴头、压印辊轴头、传动轴、齿轮以及与压印相关联的重要部件出现磨损、松动时，在压印过程中印版辊或压印辊会因此产生跳动或滑动现象，由于压力不稳定，致使印版面与纸板接触不正常，造成纸板印刷表面出现糊版或局部图文印迹不清的问题。通过认真仔细的观察和分析，查明故障的确切部位，采取相应的措施进行处理，对磨损、松动的部件予以修复，故障现象。
When the printing plate roller shaft head, imprint roller shaft head, transmission shaft, gear and the important parts associated with the imprint are worn and loose, the plate roller or imprint roller will jump or slide during the stamping process. Due to the unstable pressure, the contact between the printing plate and the paperboard is abnormal, resulting in the problem of paste plate or unclear local image and text imprint on the printing surface of paperboard. Through careful observation and analysis, find out the exact part of the fault, take corresponding measures to deal with, repair the worn and loose parts, and eliminate the fault phenomenon.
2、压力辊调整不当引起的质量故障
2. Quality failure caused by improper adjustment of pressure roller
若压力辊的位置过高或过，以致与瓦楞纸板接触过紧或过松，也会出现脏版、糊版或局部图文印迹不清情况，应调整压力辊合适的位置，使压力辊和辊筒之间的间隙与纸板的厚度相适应，以确保印刷版面的部位，避免该故障现象的产生。
If the position of the pressure roller is too high or too low, so that the contact with the corrugated board is too tight or too loose, there will be dirty plate, paste plate or unclear local image and text imprint. The pressure roller should be adjusted to the appropriate position to make the gap between the pressure roller and the roller adapt to the thickness of the paperboard, so as to ensure the position of the printing plate and avoid the occurrence of the fault phenomenon.
3、着墨辊不良引起的质量故障
3. Quality failure caused by poor inking roller
当着墨辊轴头松动，着墨辊辊体出现弯曲、变形或表面破损时，也会引起版面脏、糊版或局部图文不清晰。应查明原因，采取相应的措施予以处理，使着墨辊与印版之间保持均匀而又合适的接触条件，对损坏的着墨辊予以更换，才能故障现象。
When the inking roller shaft head is loose, the inking roller body appears bending, deformation or surface damage, it will also cause the layout dirty, paste version or local text is not clear. It is necessary to find out the causes, take corresponding measures to deal with them, keep the contact condition between the inking roller and the plate evenly and appropriately, and replace the damaged inking roller to eliminate the fault phenomenon.
4、瓦楞纸板厚度不均匀引起的质量故障
4. Quality failure caused by uneven thickness of corrugated board
如果成形的瓦楞纸板表面有人为破坏的凹陷痕迹时，凹陷部位的纸面也会出现印迹不清晰的质量缺陷，对此如果采用加大印刷压力弥补，容易使文字、线条版面出现起糊的质量问题。为了避免版面起糊，瓦楞纸板在堆放、搬运过程中，应注意轻搬、轻放、轻压(要控制好堆放高度)，切忌采用扔、砸、压等不良生产习惯进行搬运。
If the surface of the corrugated board is damaged by man-made dent marks, the paper surface of the concave part will also appear the quality defect of unclear imprint. If the comprehensive increase of printing pressure is used to make up for this, it is easy to make the text and line layout appear paste quality problems. In order to avoid the paste of the layout, the corrugated paperboard should be handled with care (the stacking height should be controlled) in the process of stacking and handling. The bad production habits such as throwing, smashing and pressing should be avoided.
5、印版厚度不均匀引起的质量故障
5. Quality failure caused by uneven plate thickness
当橡皮版材厚度不均匀时，印版版面就会出现高差。版面高的地方就容易糊版，版面的地方就容易出现着墨不全，造成印迹不清晰，为避免这一不良情况的发生，可采用零星制版的方式，将版材制成若干小块的，应采用同一块版材分别进行制作，这样它的厚度差异比较小。如果已经制好的橡皮版，存在厚薄差时，可在局部偏薄的印版背面多粘胶布层弥补，使整个印版保持基本一致的厚度，确保印刷压力和版面着墨的均匀。
When the rubber plate thickness is not uniform, the plate layout will appear height difference. The place with high layout is easy to paste, and the place with low layout is easy to have incomplete ink, resulting in unclear imprint. In order to avoid the occurrence of this bad situation, sporadic plate making method can be used. If the plate is made into several small pieces, the same plate should be used to make them separately, so that the thickness difference is relatively small. If there is a thickness difference between the already made rubber plate, more adhesive tape can be applied to the back of the locally thin plate to make up for the difference, so as to keep the whole plate basically the same thickness, so as to ensure the uniform printing pressure and ink on the page.
6、色序不当引起的质量故障
6. Quality failure caused by improper color sequence
如果将版面较满的图文排列在色组印刷，当瓦楞纸板进入下一色组机构印刷的过程中，由于纸板色组的印刷图文的着墨量大、干燥速度慢，极容易使印迹转移造成版面起脏。为防止这一弊病的产生，宜将面积小的版面排列在色组印刷，将面积大的版面排列在后续色组印刷，可避免印迹转移造成脏版现象。
If the images and texts with a full layout are arranged in the first color deck for printing, when the corrugated board enters the printing process of the next color group, due to the large amount of ink and slow drying speed of the printed images and texts of the first color group of the paperboard, it is very easy to transfer the imprint and cause the page dirty. In order to prevent this defect, it is better to arrange the small area of the page in the first color group printing, and arrange the large area of the page in the subsequent color group printing, which can avoid the dirty plate phenomenon caused by imprint transfer.
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