Ink preparation and dilution process

Dyeing process

1. Master the ink system, color, color saturation, viscosity, fineness and other indicators.

2. Examine the proofs and customer requirements, process requirements, hue requirements, and ink usage requirements. Thoroughly understand the arrangement of the color sequence of each color group, the number of prints of the product, the amount of ink used, and the deployment of the main colors.

3. Diluent and ink The solubility of the resin, the temperature deviation and the ratio of the diluent are related. If the temperature is high, the thinner should be slow-drying. At the same time, the dissolving effect and volatilization speed also play a very important role in the printing quality of the product, so it is necessary to select the appropriate diluent according to the relevant conditions.

4. Prepare inks and thinners before printing.

5. In the short time of the boot printing, according to the collocation of the color, proper use of the primary color ink, and a good grasp of the proportion, in accordance with the proofs for each color group ink hue deployment, so that the printing speed is stable, a little adjustment can be achieved Sample effect. In normal printing, the batch control of the hue is the same, and it is more difficult for ink-transferring personnel. For example, the amount of thinner added will affect the color effect in different degrees. This requires the ink-transferring personnel to have a strong sense of responsibility.

Ink transfer notes

1. In the case where the hue meets the requirements, the smaller the type of ink used, the easier it is to configure and control. Can not be used between the color ink complex ink, according to the subtractive method, the more color the spot color ink used the lower the saturation, the black component will increase accordingly.

2. Confirm the main color and the auxiliary color contained in the printed matter. The main color ink is used as the basic ink. Other inks are used as the basic color ink. The basic ink is the main ink, and the color ink is the auxiliary. This will be faster with the spot ink. more acurrate.

3. When deploying proofing and sample inks, try to use the same paper as the paper used for printing, because the color of the ink will vary depending on factors such as the absorbency of the paper. Only by maintaining a stable paper quality can you avoid color errors due to paper differences.

4. The use of ordinary white cardboard to make a sample or scratch, the thickness of the ink layer will directly affect the color of the ink, the ink layer is thin, the color is light, high brightness. In the field or network cable, wet or wet-press dry, the amount of sprayed powder is large or small, the flatness and whiteness of the paper surface, and the thickness of the ink layer will cause differences in the color.

5. To adjust the spot color ink, we must first adjust the saturated color hue of the ink and make a thin sample. After confirming that there is no lack of the main color and the auxiliary tone, adjust the desired spot color with the diluting agent.

6. Factors that affect spot color ink color include printing process, water volume, ink volume control, vehicle speed and printing equipment, etc. Printing and its laws should be grasped to ensure product quality.