Printing Ink The Color
The printing inks are pigments and dyes.
The colored materials used in the printing inks are usually pigments and some dyes, which are very fine colored substances. Printing ink pigment is generally insoluble in water, also insoluble in the binders, in the solution of most of the suspended state, and dyes in the binders are generally soluble.
Printing Ink Pigment has a great influence on the performance of printing inks, the relative density of printing inks, transparency, heat resistance, light fastness and resistance to chemical drugs, etc., are related to pigments. The role of pigments in ink is obvious, its color determines the printing ink hue; its dosage determines the ink concentration; its use to ink to a certain degree of physical properties, such as the use of a certain extent, it affects the drying of printing inks, oxidation polymerization drying-based printing inks performance particularly prominent. In addition, the printing inks in various aspects of the durability is determined by pigments.
Printing Ink About ink color: spot color differentiation to find out about the type of ink, some more than the personal feeling to take out the weight, and then use the electronic pounds to measure the amount of need to put ink on the palette mixing. After mixing, remove a small number of scraper to the substrate scraping excellent tape to inspect the correct color. When the color is found, add a small amount of ink for fine-tuning, after the completion of the recording card carefully recorded the amount and type of ink in case of a large number of spot-color printing inks.
Printing Ink For example, to redeploy a fresh blue, the first mixing, the results found that the blue is a little red, at this time should add a small amount of green or yellow to make the ink to the green direction, so on. When the blue is dim, it can add the amount of pure blue ink, increase its color purity; instead, add a black or gray ink that will make the blue turn back to deep.