We invite you to get acquainted with the category of UV PRIMERS - all devices in our offer are adapted for PRIMER application (e.g. Saphir) on overlay papers.
Corona charging equipment
To increase the low surface tension of materials like plastic, film, we suggest using corona charging equipment.
The process does not affect the strength of the processed material while it increases printing and varnishing capabilities.
| Material before treatment | Surface tension (dyne/cm) |
| PP | 29 |
| PE-LD | 31 |
| PE-HD | 32 |
| BOPP | 32 |
| PET | 34 |
| Required voltage for the process | dyne/cm |
| Varnishing | 44-54 |
| Solvent inkjet printing | 40-42 |
| Water-based inkjet printing | 46-48 |
| Foiling | 46-56 |
