In-Line Printing and Finishing for Molded Pulp: Adding Color, Coatings and Marking Without a Second Line

Color, coating, and marking are usually applied after molding on a separate line, adding handling, labor, and work-in-progress. Integrating inkjet marking, spray coating, or color application in-line — right after drying — collapses steps, reduces WIP, and lets batch codes and logos apply without slowing the machine.

The Scenario: Finishing steps add a line

Post-mold finishing faces three challenges:

Pain Points

• A separate finishing line adds handling, labor, and floor space for color and coating;
• Batch marking and logo application as a second step slow turnaround and risk mix-ups;
• Extra handling between lines increases damage and work-in-progress.

The Solution: Three in-line finishing solutions

Three practices move finishing in-line:

1. In-line inkjet marking Batch codes and simple logos print directly after drying, removing a second marking step.

2. In-line spray coating Water-repellent or color coating applies as parts pass, eliminating a separate coating line.

3. Collapsed handling and WIP Fewer transfer steps cut damage and work-in-progress, speeding order turnaround.

The Result: Faster, cheaper finishing

With finishing in-line, parts ship faster with fewer steps and less damage. Manufacturers cut labor, floor space, and turnaround in one move.