Why Vectorr for Multi-Color DTG?
Color Separation Preview: See exactly how your design will split into CMYK + white layers before sending to print.
White Ink Control: Adjust white ink coverage independently—light underlay for dark colors, full coverage for light areas.
Registration Preview: Visualize layering with color highlights to catch registration issues before waste.
Multi-Color DTG Requirements
- File Format: TIFF or high-quality PNG, RGB color space (24-bit or higher).
- Resolution: 300 PPI at final print size for photographic quality.
- Color Management: Use linearized ICC profile for your specific DTG printer and garment type.
- White Ink Settings: Configure underlay, midtone, and highlight coverage separately.
Layering Strategy
Underlay (White Base): Prints first on dark garments. Controls opacity and adhesion of colored inks above.
Mid-Tone White: Adds opacity to areas with medium color density (around 50% coverage in print).
Full-Color CMYK: Printed on top of white layers. The white underneath brightens and saturates colors.
Workflow Steps
- Load and Scale: Import artwork to 300 PPI at final print size. Check color mode is RGB.
- Configure White Ink: Set underlay percentage (30–50% for light garments, 80–100% for dark).
- Select Color Profile: Choose ICC profile matching your DTG printer and garment color.
- Preview Separation: Display white, cyan, magenta, yellow layers separately.
- Adjust Registration: Check for misalignment by viewing CMYK overlay; fine-tune if needed.
- Queue to Printer: Send file and monitor first print for color accuracy.
- Heat Press: Cure at correct temperature and dwell time for garment type (usually 315–350°F, 45–60 seconds).
Color Management Best Practices
Profiling: Create a custom ICC profile for each combination of printer, ink set, and garment color. Stock profiles are generic.
Test Prints: Always run test prints on scrap garments before full production. Colors shift with ink saturation and curing time.
Gamut Optimization: Some colors (bright reds, purples) cannot be reproduced perfectly. Map these to the nearest achievable hue.
Linearization: A linearized profile corrects ink saturation across the tonal range, reducing banding and posterization.
Curing and Durability
Temperature: Too low = colors stay soft and fade quickly. Too high = garment damage and color shift. Follow garment blend specs.
Dwell Time: 45–60 seconds is typical, but thick garments and high ink coverage need longer.
Cooling: Cool the garment completely before stacking to prevent color transfer and ink pooling.
Common Issues
Washed Colors: Insufficient curing or wrong temperature. Increase dwell time or raise temperature 10–15°F.
Poor Color Match: Stale ink, wrong profile, or garment color change. Replace ink and recalibrate profile.
Banding or Posterization: Low color depth in file or poor linearization. Use 24-bit+ images and profile correction.
Ink Bleed: Too much white ink or insufficient garment pretreatment. Reduce white coverage and increase flash time.