Best print quality guide for Stone Offset Paper
RPD & RBD can be printed through most printing methods, which include offset, gravure, flexography, screen and rotary. RPD has advantages of pulp and synthetic paper. It can be easily printed by using common printing machines and methods. Moreover it has water resistant properties like the synthetic paper. We recommend the following to print on RPD. Please note the following is only a guide. Settings may be different depending on printers and operators.
1. Regular ink and soy ink are adequate for RPD print.
2. Please place lightest ink to be printed first (i.e., from CMYK to YCMK or YMCK as required).
3. Printing speed is approximately 7500 ~ 8000 sheets per hour for dark / solid color, more than 9000 sheets for lighter colors.
4. Water feed is [Set 21 and Ratio 115].
5. Ink feed is [Set 40 and 116 Ratio 116].
6. Drying powder is level 4~6, depending on artwork.
7. RPD’s surface immediately dries after print. For RPD to fully dry and ready for further prints or processes please allow approximately 1 hour after light color prints or 12 hours after dark color prints. Please note that drying agents can be added to the ink to shorten the drying time.
8. When stacking printed paper, please place separating plates as required.
9. To minimize static, please maintain at least 40% relative humidity. Anti-static equipment such as ionizing air units at feeder and/or delivery is preferred but not essential.
10. Please trim 4 sides of the paper especially to ensure higher printing and converting precision.