Before printing, the ink box printer should understand […]
Before printing, the ink box printer should understand the various specifications and properties of the ink; make the ink suitable for production needs. In addition to this, pay attention to the following related matters:
1. When the box is matched with ink, the ink of different colors should be added as little as possible. The fewer types of inks, the better the mixing effect.
2. Adopt the principle of "from light to deep", no matter whether light or bright colored inks are prepared, when the hue is close to the model, be careful. Ink produced by different manufacturers, do not mix and call, try to use different color inks of the same manufacturer for color matching, otherwise uneven color tone will occur, and in serious cases, condensation will occur and the ink will be scrapped.
3. Some packing box inks are dried by drying. Light-colored drying is lighter than undried, and dark-colored drying is darker. In addition, whether the color tone of the ink is different before printing and after drying is a problem that is easy to ignore. Generally speaking, through natural drying (solvent-volatile inks), the substrate is plastic, metal, paper, glass and other packaging boxes, and the color will not change; however, if it is a ceramic colorant, it will be Color development can only be graded by experience. For screen printing inks that are dried by thermosetting and light curing, the color changes in shades, as mentioned above. When the amount of ink to be adjusted is large, an ink adjuster can be used to complete color adjustment in a short time.
4. The deployment of light-colored inks is mainly white inks, and appropriate color inks are used. Such as light blue, mainly white ink, slightly blue (cyan); light red, mainly white ink, slightly red; gray, mainly white ink, slightly black; silver gray, mainly white ink, slightly Add silver powder paste, and trace black ink. When preparing light-colored screen printing inks (printing materials), it is necessary to add as little white ink as possible, because white ink is large, and it is easy to cause discoloration of other colors.