The transparent folding box is a common packaging material, which is often used. The cakes and small desserts we bought are packaged in a transparent folding box, which is not only portable but also very light in material. The transparent folding box is glued in the production process, so what kind of glue is used in the transparent folding box on the market? Let's take a closer look.
PET is divided into APET and GPET, because PET glue needs to be transparent without whitening, or the refractive index of the glue is the same as that of PET, and the transparency is relatively high.
There are several types of glue for PET transparent folding boxes:
1: hot melt adhesive
2: UV glue
3: solution glue
Transparent folding box
Now mainly use UV glue, use ultraviolet light.