Toning of plastic gravure ink
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In actual printing, coloring problems are often encountered. If you do not understand the basics of ink performance and color, it is difficult to achieve the desired results.
First of all, we must understand the change rule of the three primary color inks, analyze the color of the original color draft, find the main hue, and then use the least kind of auxiliary color ink to modulate. Otherwise, too many types of colors will make the ink color dark and the gloss is reduced. When adjusting the ink, it is necessary to use the same type of ink produced by the same factory. It is best to use inks of the same type of pigment to avoid chemical reaction or difficulty in affinity.
The change of the three primary colors: the primary color red contains a small amount of original yellow is red, and gradually becomes golden red, orange red, deep yellow, medium yellow with the increase of the yellow phase. The original yellow contains a little original blue is grass green. As the blue phase increases, it gradually becomes emerald green, bright green, medium green, dark green, dark green. The original blue contains a little red, which is medium blue. As the red phase increases, it gradually turns into dark blue, ultramarine blue, green lotus blue and purple. The original red plus a little original blue is dark red, the blue phase is purple, the deepest red is purple, and the deepest blue is purple. White ink, gray ink, and black ink have no hue and only have saturation. The addition of any color ink to the white ink will increase the gloss of the ink, brighten, and at the same time reduce the color. If black ink is added, the gloss and color of the ink will be lowered.