Ink color difference inspection method

In the process of gravure printing, ink color deviation often occurs, which will affect the beauty of the finished product. Therefore, the editor summarizes six reasons for your reference. The amount of ink is inconsistent, that is, the viscosity of the ink in the ink tank of the printing machine is different at different times, and the amount of ink is different.

In the whole process of gravure printing, the relative stability and consistency of ink viscosity should be maintained. Note that the viscosity change of the ink is often affected by the temperature change of the printing environment. There are differences in the colors of the selected inks. To solve the problem of color differences of gravure printing inks on plastic films, it is necessary to select gravure printing inks with stable quality and small color deviation or deviation.

For a variety of printing, Z is better to use the ink produced by a certain manufacturer. For a batch of printing materials, Z is better to use the same batch of ink produced by the same manufacturer. If the ink circulation is not smooth, pay attention to keep the ink circulation smooth. Z should adopt the ink circulation system to ensure the convenience of adding diluent and adding new ink, and keep the ink with good quality and fluidity.

The company is also committed to strengthening its product portfolio and reducing production costs by adopting new production technologies. These products are green substrates, which use water as a solvent to dissolve the resin. They are easy to use and environmentally friendly. It contains about 80% water and a small amount of other solvents, such as ethylene glycol ether. These products contain low levels of VOC and HAP. They have good thermoplastic and flexibility, which can maintain a soft coating and better cooperate with the substrate. These coatings are also very durable, with better mildew resistance and powdering resistance.