is to cover the surface with a film
there are light film and dumb film. In this way, there will be the difference between smooth surface and dumb surface on the surface of the color box
hope to adopt
gluing of color box packaging box means film covering. Some people call it light glue and sub glue. In fact, it corresponds to light film. Sub film
gluing means film covering, which is used to protect the surface of printed matter
there are yellow glue and white glue. Yellow glue is oil glue, which is made of rosin resin mixed with ABS plastic toluene. It tastes very toxic. White glue refers to water-based glue, which looks milky white liquid. Some water glue is yellow, and a certain proportion of oil glue is added to increase the viscosity.