Do 8 points no longer worry about the effect of temperature on the printing ink color

Do 8 points no longer worry about the effect of temperature on the printing ink color

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In the printing production of soft package factory, once the temperature is low and the machine speed is slow, the ink in the ink fountain often appears to be unsmooth and the ink supply is not normal, which causes the ink color of the printed product to become lighter and lighter. This is the main manifestation of poor ink touch denaturation, which seriously interferes with the stability of the printing ink color.

The soft pack factory should pay attention to controlling the following key points:

1, pay attention to often stir the ink in the ink fountain, so that it maintains a continuous, even flow, to ensure the stability of the product's ink quality;

2. When purchasing ink, you should pay attention to selecting high-grade ink. Because the thixotropy of high-grade ink is relatively stable, it is beneficial to improve the quality of printed ink color;

3. The production workshop for printing color products should adopt the process conditions of constant temperature and humidity as much as possible;

4, the speed of the printing press should not be too fast, and adopt a constant speed to expand printing;

5. Remove the unused rubber roller as much as possible;

6. The contact pressure between the rubber roller and the ink roller is not adjustable too tightly;

7. Do not adopt a rubber roller with a hard texture;

8. The contact between the rubber roller, the water roller and the printing plate should be appropriate to minimize the friction coefficient in the printing sequence, minimize the interference of the frictional heat on the ink characteristics, and reduce the interference of the thixotropy of the ink on the printing ink color.