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Dimmed color inks, distinguished from hue, also have primary colors, inter-colors, and complex colors. Any use of the three primary color inks to dilute, as long as the primary color ink can be added in batches. However, if it is between the color, complex color, lack of ink transfer experience, it is best to first mix the original ink into the dark ink of the ink color, and then add the dilute.
Blending method of light color ink in printing color
Light-colored ink is ink added with diluting agent in the original ink, or mixed with other inks in white ink. The method of dispensing is based on the principle of diluting agent or white ink, supplemented by other color inks. Firstly, dilute the appropriate ratio of diluting agent or white ink, and then add the color inks in different times, so that the ink is uniformly mixed while observing the hue changes. When the degree of diluting is appropriate, use the printing paper to smear the ink color sample and the original document and adjust it to the proper level.
The deployment of light-colored inks and mastering the degree of ink dilution are important technical aspects. If the dilute ratio is not enough, it will cause the lack of ink on the surface of the ink roller. The printed ink on the printing surface is prone to blooming. The ink layer will not dry and the color will not be bright. If the ink dilutes too much, only the thickness of the ink layer can be increased to achieve the desired hue for printing. In this way, the transfer of ink will make it easy for the layout of low-key areas to appear paste version, can not tell the depth level. At the same time, it is also easy to cause the bottom of the imprinting phenomenon.
The deployment of light-colored inks should be based on the product quality requirements, as well as the paper characteristics, select the appropriate ink and diluting agent. Such as printing offset paper with 10 type ink printing general products, can choose 915 dilute agent or 554 transparent oil.
If the coated copperplate paper uses type 05 ink to print fine products, then use 05-90 bright light or 8011, 8015 lighter. The deployment of light-colored inks should also pay attention to the original ink that is not resistant to light, is not resistant to oxidation, and is easily discolored, and should be avoided as much as possible for the deployment of light-colored inks, so as not to cause color instability.
In addition, due to the fact that the white ink ratio is significant, in addition to the requirements for masking and color matching, a small amount is added for calling, and as far as possible, white ink is not used for diluting. In order to prevent the occurrence of poor stacking, color loss and other weight problems.
When formulating inks, it is also necessary to pay attention to the proportion of different inks, such as the use of lead-chromium yellow ink and peacock blue green ink with a relatively large proportion, after a long time, then there is a "floating color", if you use organic yellow pigment instead The yellow ink to deploy, there will be no such phenomenon.
To sum up, only by learning to master color knowledge and understand the relevant conditions and use characteristics of inks and auxiliary materials can we scientifically deploy various color inks to meet the requirements of improving printing quality and production efficiency.