The utilization rate of labels is still relatively high now. In the label production process, the UV varnish on the label is very important and can play a protective role. However, this UV varnish can not be unfolded casually, and you need to pay attention to related matters. For the self-adhesive label manufacturers who are often in contact, there are related matters in the production and printing of self-adhesive labels. Changzhou Yueda Printing Company has accumulated rich experience in this aspect. Let me come together with the editor below. Take a look.
1. Understand the types, properties, effects of varnishes and their changes when formulated with other solvents.
2. The post-processing adaptability of the glazing material should be considered, such as hot stamping performance, friction, and pressure resistance during die-cutting with concave and convex indentation.
3. Pay attention to the drying performance of the varnish, and whether the drying temperature range and the length of the drying time affect the substrate.
4. The glazing oil with high transparency and low odor should be selected. Reason 1: The viscosity is too high a few days before the UV light, and the leveling is poor. Solution: Reduce the viscosity of UV varnish and add a small amount of leveling agent. Reason two: the coating roller is too thick and not smooth. Solution: The surface of the coating roller should be ground and polished.
Through the above description, we have learned that the label manufacturers should pay attention to the four main points when applying UV varnish. The processing adaptability and drying performance of the glazing material have strict requirements. If you are interested in our introduction, you might as well come to our company to learn about one or two, professional sticker manufacturers welcome everyone to come at any time.