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影响印刷质量的主要因素有哪些?

  在印刷行业中,很多企业在印刷过程中,产品的印刷质量总会出现这样或那样的质量问题,但有时候总是不清楚到底是哪个环节出了问题,到底是什么因素影响了印刷质量呢?今天本文就针对经常出现的印刷质量问题总结出了几个主要的影响因素。

  In the printing industry, many enterprises in the printing process, the printing quality of products will always appear such or such quality problems, but sometimes it is not clear which link is the problem, what factors affect the printing quality? Today, this paper summarizes several main influencing factors for the printing quality problems that often occur.

  1、堵版

  1, blocking version

  网点堵塞会引起油墨的转移量下降,印刷品颜色将发生变化。发生堵版时,要用溶剂或专用清洗剂清洗印版,同时针对堵版产生的原因采取相应的措施。

  The blockage of dots will cause the transfer of ink to decrease, and the color of printed matter will change. When blockage occurs, the printing plate should be cleaned with solvent or special cleaning agent, and corresponding measures should be taken for the causes of blockage.

  2、印版磨损

  2. Plate Wear

  印版磨损会使网点变小、变浅,从而影响了网点的载墨量。印版磨损的结果是颜色总体变淡。有时白版磨损使白墨上墨量不足,对基材底色的遮盖力不足,此时应停机换版生产,旧版重新退镀。若印版滚筒使用过渡网墙坍塌导致不能退镀,应重新制版。

  Printing plate wear will make dots smaller and shallower, thus affecting the ink load of dots. As a result of plate wear, the overall color becomes lighter. Sometimes the white plate wear makes the ink on the white ink insufficient, and the covering power of the base material is insufficient. At this time, the production should stop and change the plate, and the old version should be re-plated. If the plate drum can not be stripped due to the collapse of the transition screen wall, the plate should be reproduced.

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  3、图案颜色不一致

  3. Inconsistent pattern color

  版面横向同时排布多个图案时,可能发生印版左右两端图案颜色不一致的情况。在制版过程中,尤其是满版实地时,电雕从左到右容易产生网点大小的变化,因此,应注意检查印版滚筒左右两端的印刷效果差异。

  When multiple patterns are arranged horizontally at the same time, the color difference between the left and right sides of the plate may occur. In the process of plate making, especially when full plate is on the spot, it is easy to change the dot size from left to right. Therefore, attention should be paid to checking the printing effect difference between the left and right ends of the plate drum.

  4、印版设计的合理性

  4. Rationality of plate design

  在进行印版设计时要充分考虑到印版设计对印刷过程和印后加工的影响。比如80%和5%左右的网点跳跃区的色彩极易发生层次并级,应提前采取改变措施。

  In the process of plate design, the influence of plate design on printing process and post-press processing should be fully considered. For example, about 80% and 5% of the color of the jumping area of the dots are easy to be graded, so we should take measures to change it in advance.

  5、印刷环境因素

  5. Printing environment factors

  印刷车间的室温如果发生大幅度变化,油墨的流动状态就会发生变化。一般生产车间的温、温度控制在温度(23±5)摄氏度,湿度60%±5%.另外在冬季使用油墨时,要提前预热,以增加油墨的流动性。

  If the room temperature of the printing workshop changes dramatically, the flow state of the ink will change. In general, the temperature and temperature of production workshop are controlled at (23 +5) Celsius and 60%+5% humidity. In addition, when using ink in winter, it should be preheated in advance to increase the fluidity of ink.

  6、印刷条件

  6. Printing Conditions

  当版面受到无规则的风吹时,印刷速度和干燥速度发生变化,都会导致印刷品的颜色发生变化。在印刷过程中应充分考虑以上因素。

  When the layout is blown by irregular wind, the change of printing speed and drying speed will lead to the change of the color of the printed matter. These factors should be fully taken into account in the printing process.

  以上内容由山东印刷包装厂家整理发布,更多相关信息可以点击我们的官网进行咨询:http://www.sdyszb.com

  More information can be obtained by clicking on our official website: http://www.sdyszb.com.


 
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