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印刷中出现露白现象的原因有哪些?

来源:http://www.jindingyinshua.com   日期:2019-01-15

  包装印刷过程中常常会出现露白的现象,在实际印刷生产过程中,引起印刷露白的因素有很多,接下来就印刷露白谈谈自己的见解。

  In the process of packaging and printing, there are many factors that cause printing exposure. Next, I will talk about my opinions about printing exposure.
  印刷露白多由以下几种情况产生,比如:
  Printing dew mostly comes from the following situations, such as:
  1.瓦楞纸露白;
  1. Corrugated paper is white;
  瓦楞纸露白是瓦楞纸箱生产过程中常见也是难杜绝的印刷问题,印刷露白影响印刷效果这是无可厚非的,而且会造成印刷不合格,印刷表面因为印刷露白显得不够美观,往往也会被客户拒收;
  Corrugated paper bleaching is the most common and difficult printing problem in the production process of corrugated cartons. It is beyond reproach that printing bleaching affects the printing effect, and it will lead to unqualified printing. Printing surfaces are often rejected by customers because of the poor appearance of printing bleaching.
  2.纸张吸水;
  2. Paper absorbs water;
  纸张吸水,与油墨的粘稠度都会对印刷效果产生很多影响,对于引起露白的方式不同,处理的方式也是不同的。比如纸张干燥度不平衡,一部分潮湿一部分干燥,这种情况多是由于纸张存放的环境潮湿,造成接触空气的纸张吸收空气中的水分,而中间的纸张无法获得相应的湿度而出现纸张部分干/湿,对于这种处理方式只需要控制室内的潮湿度和温度即可;

济南包装印刷

  Paper water absorption, and ink consistency will have a lot of impact on the printing effect, for different ways of causing exposure, treatment is also different. For example, the paper dryness is unbalanced, and part of the humidity is dry. This situation is mostly due to the humidity of the paper storage environment, which causes the paper contacting the air to absorb moisture in the air, while the paper in the middle can not get the corresponding humidity, so the paper part is dry/wet. For this kind of treatment, only the humidity and temperature in the room need to be controlled.
  对于油墨粘稠度的调节,因为油墨太过粘稠,造成在印刷环节出现露白,这种情况只需要调节油墨的粘稠度即可。
  For the adjustment of ink consistency, because the ink is too thick, resulting in white in the printing process, this situation only needs to adjust the ink consistency.
  对于不同的印刷露白状况,只需要找出原因,并对这种原因加以分析即可印刷露白的现象。
  For different printing bleaching conditions, only need to find out the reasons, and to analyze the reasons can solve the phenomenon of printing bleaching.