Prepress engineering bridges digital RGB design and physical ink deposition. Proper trapping, bleed allowances, and Pantone spot matching guarantee flawless print runs.
1. Prepress Technical Standards
- Rich Black vs. Plain Black: Plain 100% K looks washed out on large solids; rich black (C60 M40 Y40 K100) provides deep, saturated tone.
- Bleed & Safety Margins: 0.125-inch (3mm) external bleed and 0.25-inch internal safety margins protect critical typography during guillotine cutting.
- Total Area Coverage (TAC): Capping total ink density under 300% prevents ink drying issues and page offsetting on coated stocks.