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.

　　印刷露白多由以下幾種情況產生，比如：

　　Printing dew mostly comes from the following situations, such as:

　　1.瓦楞紙露白；

　　1. Corrugated paper is white;

　　瓦楞紙露白是瓦楞紙箱生產過程中常見也是難杜絕的印刷問題，印刷露白影響印刷效果這是無可厚非的，而且會造成印刷不合格，印刷表面因為印刷露白顯得不夠美觀，往往也會被客戶拒收；

　　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.紙張吸水；

　　2. Paper absorbs water;

　　紙張吸水，與油墨的粘稠度都會對印刷效果產生很多影響，對于引起露白的方式不同，處理的方式也是不同的。比如紙張干燥度不平衡，一部分潮濕一部分干燥，這種情況多是由于紙張存放的環境潮濕，造成接觸空氣的紙張吸收空氣中的水分，而中間的紙張無法獲得相應的濕度而出現紙張部分干/濕，對于這種處理方式只需要控制室內的潮濕度和溫度即可；

　　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.

　　對于油墨粘稠度的調節，因為油墨太過粘稠，造成在印刷環節出現露白，這種情況只需要調節油墨的粘稠度即可。

　　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.

　　對于不同的印刷露白狀況，只需要找出原因，并對這種原因加以分析即可印刷露白的現象。

　　For different printing bleaching conditions, only need to find out the reasons, and to analyze the reasons can solve the phenomenon of printing bleaching.