Water-based ink will carry out the concept of environmental protection in the end

With the application of flexographic technology in the field of flexible packaging, aqueous inks have also expanded. The main difference between water-based ink and solvent ink is that the solvent used in water-based ink is not organic solvent but water. The connection material is composed of resin and water. The main components of water-based ink are color agent, aqueous connection material, solvent and various additives. . At the time of printing, it is slightly different from the traditional domestic and foreign ink manufacturing processes and technical specifications, but the principle of printing and packaging is the same. In the use of the need to control the viscosity: low viscosity, fast ink transfer, will cause the color light, dot distortion, transfer ink uneven and other defects; high viscosity, ink transfer slow, uneven ink, color, but sometimes not deep, easy to print Dirty and paste version and other ills. Control PH value: control in the range of 8.5 ~ 9-5, the printing performance of the ink is the best, the quality of the print is the most stable. Control thickness: ink is too thick to cause defects such as heaping ink and stencil, and the coloring power and hue of the ink will be reduced: the ink is too thin, the flowability is too large, and it will flow after printing deposition, so that the dot network will expand, affecting the printing Product quality. Flexographic printing can select inks of different thickness according to different requirements. Printed wires with finer, more precise prints require a higher fineness of the ink: When printing is not required for high precision or in-situ printing, the thickness of the ink is fine. Can be lowered.

Complements the flexographic printing and continues the concept of environmental protection. This is the mission of water-based inks in the field of flexible packaging.

Reprinted from: 21st Century Fine Chemicals Network