Talk about what color printing plants need to do.

The amount of ink used in Dalian Colour Printing Plant is closely related to the colour of the ink. The color printing and packaging manufacturers should select the ink which has strong colour and can be directly used without adding additives. In order to reduce waste and save cost, the selected ink should be stored for a long time without too complicated treatment when used again. In order to improve the colour of the ink, the packaging manufacturers should select the ink which can be directly used without adding additives. For the adaptability of high-speed printing, the manufacturer should select plastic gravure printing ink which can meet the higher printing speed. To adjust spot-color ink, first of all, the saturated color phase of the ink should be adjusted, and thin samples should be made. After the universal coupling confirms that there is no lack of main and auxiliary tones, the diluent should be used to adjust the required spot color.

In addition, attention should also be paid to printing process, water volume, ink volume control, vehicle speed and printing equipment. Printing and its rules should be grasped to ensure product quality. The influence of surrounding environment of color package should be considered to avoid illusion of color. When discerning color, the surrounding color should be covered up, and only a single observation can avoid color bias. To confirm the main tone and auxiliary tone of color printing packaging, the main tone ink is the basic tone ink, the other tone ink is the tone ink, the basic tone ink is the main tone ink, and the tone ink is the auxiliary tone ink, so that the matching of spot color ink will be faster and more accurate; the ink mixing should be uniform, and the paper properties such as coated paper or copperplate paper, generally use fast-drying ink. For offset paper, resin ink can be used; the light source for ink adjustment and color discrimination is ideal for uniform white light, natural light facing the North window, and artificial light source similar to natural light, such as fluorescent lamp and incandescent lamp.