Generally speaking, the glossiness of the blister packaging box refers to the degree of specular reflection on the surface of the packaging box, which is indicated by a percentage. In addition to specular reflection, there is also diffuse reflection on the surface of the packaging box, which reduces the glossiness of the packaging box. The higher the gloss of the packaging box, the more the surface can reflect light like a mirror, and the more bright appearance characteristics can be displayed. Blister packaging is a general term for producing plastic products by a blister process and packaging the products with corresponding equipment. How to solve the pitting on the surface of products produced by blister packaging?
Analysis of the reasons: 1. The particle size of the glue is large, and thin PVC is used, which is easy to produce pitting, which is characterized by uniform dispersion; 2. When used with a curing agent, the curing agent is not completely dispersed; 3. The surface of the board is not completely dispersed After cleaning, or after spraying glue, the dust in the workshop is large and it sticks to it. The pockmarks are very unevenly dispersed and have different sizes; 4. The viscosity of the glue is too large and the dispersion is uneven; 5. The viscosity of the glue is too small or The solid content is low, causing the board to fluff. Such pits generally appear in the corners of the grooves and appear in blocks; 6. The air pressure of the spray gun is not enough, and the atomization is not good; 7. The glue is not filtered. So what kind of solution does the blister packaging factory have? General solutions: 1. Choose glue with a small particle size; 2. When preparing a curing agent, prolong the stirring time so that the curing agent can be completely dispersed; 3. Clean the surface of the board before spraying glue, and separate the glue spraying workshop; 4. Choose glue with suitable viscosity or high solid content; 5. After the glue is dry, it can be polished with fine sandpaper; 6. Increase the vacuum degree to adjust the atomization effect; 7. When using, filter it with a filter screen.