38元体验金

新闻资讯

油墨快干和慢干对印刷质量的影响!

  快干和慢干对印刷质量有什么影响?

  What is the effect of fast and slow drying on printing quality?

  取出刚印好的产品,触摸墨层表面,如果有一种砂粒状物质均匀地分布在印刷图案的边缘,就可以确定油墨干燥速度过快。

  Take out the newly printed product and touch the surface of the ink layer. If there is a sand like substance evenly distributed on the edge of the printed pattern, it can be determined that the ink drying speed is too fast.

  由于柔印水性油墨干燥速度快,半色调印刷图像会很快被粘贴,而且印刷图案的边缘会有毛刺。此时,水基油墨循环进入墨槽,然后通过刮墨系统输出,很容易产生拉丝现象。

  Due to the fast drying speed of water-based ink, halftone printing image will be pasted quickly, and there will be burr on the edge of printing pattern. At this time, the water-based ink circulates into the ink tank, and then outputs through the scraping system, which is easy to produce drawing phenomenon.

  软版水性油墨干燥速度太慢,叠印效果不牢固,容易蹭脏。当然,肮脏还有其他原因。这种区别需要清楚地加以区分。

  Soft version of water-based ink drying speed is too slow, overprint effect is not solid, easy to rub dirty. Of course, there are other reasons for being dirty. This distinction needs to be clearly distinguished.

  在印刷过程中,油墨的颜色应保持不变。首先,要保证油墨槽有足够的循环油墨,并定期检查油墨的粘度和pH值。打印速度不能太快或太慢。在添加新油墨时,不仅要保证新油墨的颜色在允许的色差范围内,还要在每卷印刷结束时添加。

  During the printing process, the color of the ink shall remain unchanged. First, make sure that there is enough circulating ink in the ink tank, and regularly check the viscosity and pH value of the ink. The printing speed cannot be too fast or too slow. When adding new ink, not only the color of the new ink should be within the allowable color difference range, but also at the end of each roll of printing.

QQ截图20170929174712.jpg

  为了保证在印刷过程中更好的套印效果,有必要设置合理的印刷色彩等级,遵循降低油墨粘度的原则;同时,印刷压力应保持适中,不宜过大或过小。

  In order to ensure the best overprint effect in the printing process, it is necessary to set a reasonable printing color level and follow the principle of reducing ink viscosity; at the same time, the printing pressure should be kept moderate, not too large or too small.

  如何解决印刷过程中油墨流平差的问题?

  How to solve the problem of ink flow adjustment in the printing process?

  如果油墨流平性不好,除了调整油墨粘度和添加流平剂外,还可以尝试以下处理。

  If the ink leveling is not good, in addition to adjust the ink viscosity and add leveling agent, you can also try the following treatment.

  (1)检查纸张表面涂层是否有利于油墨的扩散;

  (1) Check whether the paper surface coating is conducive to ink diffusion;

  (3)检查回收油墨是否使用,尽量使用新油墨;

  (3) Check whether the recycled ink is used, and try to use new ink;

  (4)油墨供应商必须提供更好的调平油墨。

  (4) Ink suppliers must provide better leveling ink.


 
QQ在线咨询
售前咨询热线
0531-87788878
售后咨询热线
15863799919
XML 地图 | Sitemap 地图