In packaging and printing industry, CorelDRAW is usually used to edit sample drawings instead of PS. I believe that all those who learn CorelDRAW will get a message from their teachers. The color mode used in printing industry is CMYK. You are required to use this mode when saving files. After forming a habit, you will naturally choose the right one without thinking in the future.

紙張長度變化的影響因素

Influencing factors of paper length change

1、紙張含水量

1. Moisture content of paper

紙張的含水量不同，也會造成紙張長度發(fā)生變化。紙張的含水量越大，印刷后的紙張收縮也就會越嚴重。

Different moisture content of paper will also cause the change of paper length. The greater the moisture content of the paper, the more serious the shrinkage of the printed paper will be.

2、張力

2. Tension

紙張張力就是印刷過程中輸紙系統(tǒng)對紙張的拉伸力，濟南印刷廠在印刷過程當中過大的張力直接就是造成拉成紙張，印刷后了張力，紙張必然回縮，使配頁出現(xiàn)時長時短的問題，從而影響到美觀。

The paper tension is the stretching force of the paper feeding system in the printing process. The excessive tension of Jinan printing factory in the printing process directly causes the paper to be drawn. After printing, the tension is eliminated, and the paper is bound to retract, which causes the problem of short and long time in the matching page, thus affecting the beauty.

3、紙張的定量

3. Quantitative analysis of paper

在相同的張力下，印刷所用的紙張定量越大(紙張越厚)，印刷之后紙張的收縮嚴重，但是也要考慮到厚紙含水量大的因素，一般的情況之下，厚紙應該加大張力。

Under the same tension, the larger the paper weight used for printing (the thicker the paper), the more serious the shrinkage of the paper after printing. However, the high moisture content of thick paper should also be considered. Generally, the tension of thick paper should be increased.

印刷的過程中，一樣的印刷產(chǎn)品盡量使用相同的、相同的厚度的紙張，這樣可以再印刷的過程中使其張力保持不變。

In the process of printing, the same printing products try to use the same brand, the same thickness of paper, so that the tension can be kept unchanged in the process of re printing.