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怎么防止印刷品覆膜后变色的现象?

  济南包装厂在日常的印刷工作中会经常遇到客户用样衣,有些客户会要求我们用样衣印刷,产品的颜色要达到与样衣同样的效果;在这种情况下,我们不能给客户一个肯定的答复。我们最多只能保证与样品接近90%,因为印刷品的颜色与以下因素有很大关系。

  Jinan Packing Factory often encounters customers'sample clothes in their daily printing work. Some customers will ask us to print with sample clothes. The color of the products should achieve the same effect as the sample clothes. In this case, we can not give customers a positive answer. We can only guarantee that the sample is close to 90% at most, because the color of the printed matter is closely related to the following factors.

  1. 文件的CMYK值

  1. CMYK value of file

  2、油墨质量

  2. Ink Quality

  3.打印机长度操作

  3. Printer Length Operation

  4. 空气温度及湿度

  4. Air temperature and humidity

  5、覆膜后工艺对色彩的影响

  5. The influence of coating process on color

QQ截图20170929174642.jpg

  前4个因素我们已经在其他文章中做了具体的阐述,这里主要是对覆膜印刷的色彩影响的过程。大多数打印出来的机器,都需要经过这个过程,要么盖上哑膜,要么盖上亮膜;无论是覆盖哑膜还是亮膜,产品颜色都会加深,尤其是覆盖哑膜后颜色会加深。

  The first four factors have been elaborated in other articles. Here is the process of the influence of color on film-covered printing. Most printing machines need to go through this process, either covered with dumb film or covered with bright film; whether covered with dumb film or bright film, product color will deepen, especially after covered with dumb film.

  覆盖物颜色加深

  Cover darkening

  遇到这种情况下,印刷在一开始,我们可以采用抽样的方法,印刷表面一层哑光磁带或光胶带,如果发现颜色太深或太浅,再让印刷机长试图增加或减少红色黄色蓝色黑四色组油墨量,采用印刷基本吻合的方法与打印样品颜色,颜色相似度可以达到90%。

  In this case, at the beginning of printing, we can use sampling method to print a matte tape or optical tape on the surface. If the color is too dark or too light, let the printer try to increase or reduce the amount of red, yellow, blue, black and four-colour inks. Printing method basically coincides with the color of the printed sample. The color is similar to that of the printed sample. The degree can reach 90%.


 
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