1. OPERATIONAL WORKFLOW
- Control every stage (screen prep, coating, exposure, printing).
- Select the right squeegee, mesh, and ink for each job.
- Standardize print parameters (angle, pressure, speed).
- Record all operational variables systematically.
- Schedule regular maintenance for screens, squeegees, and equipment.
2. TECHNICAL REFERENCE PARAMETERS
Fundamental Parameters
| Parameter | Optimal Value | Effect |
|---|---|---|
| Squeegee angle | 45°–60° | Determines ink deposit thickness |
| Squeegee pressure | Medium-constant | Ensures print uniformity |
| Mesh tension | 11.4–14.3 lbf/in | Ensures dimensional stability |
| EOM (Emulsion Over Mesh) | 10%–20% over mesh | Controls ink release |
| Print speed | Constant and repeatable | Affects quality and productivity |
3. COMMON MISTAKES AND SOLUTIONS
Issues and Corrections
| Problem | Cause | Solution |
|---|---|---|
| Non-uniform ink | Incorrect pressure or angle | Calibrate squeegee and pressure |
| Smudging | Mesh too slow or excessive EOM | Use finer mesh or reduce EOM |
| Poor coverage | Low tension or ink too thin | Check tension and viscosity |
| Registration issues | Unstable or poorly secured screen | Verify fastening and tension |
3 GOOD HABITS
1
Pre-print control
Check screen tension before each print run.
2
Constant cleaning
Clean squeegee and screen after every job.
3
Fresh inks
Use fresh, well-mixed inks.
- Automate coating and cleaning where possible.
- Archive print data to ensure repeatability.
USEFUL TIPS
Best Practices
| Suggestion | Benefit |
|---|---|
| Use identical mesh (count and type) for all CMYK screens. | Uniform deposit and perfect registration. |
| Always print in order: CMYK or KCMY. | Maximum visual yield and density control. |
| Run digital proofs before production. | Verify colors and corrections before printing. |
| Maintain an archive of certified color samples. | Constant reference for repeatability. |
REMEMBER
"Quality doesn't come by chance — it's built through control and discipline. Applying measurable standards turns screen printing into a stable, efficient, and professional process."
👉 Explore the BASIC – ADVANCED – PROFESSIONAL versions of the Screen Printing Master Map to deepen your understanding of color management and process controls.
OPERATIONAL CHECKLIST
Essential Controls
| Control | Frequency | Responsible | Action if Non-Compliant |
|---|---|---|---|
| Verify screen angles | Each separation | Pre-press technician | Regenerate separations with correct angles. |
| EOM uniformity | Before each CMYK set | Pre-press operator | Re-coat non-compliant screens. |
| 4-color registration test | Every setup | Print operator | Micro-adjust until perfect alignment. |
| Ink density | Each batch | Quality technician | Adjust density to standard. |
BASELINE INDICATORS
Target Parameters
| Indicator | Target |
|---|---|
| Optimal screen ruling (LPI) | 55–65 for textile |
| Uniform mesh tension | 11.4–14.3 lbf/in across all CMYK |
| Registration tolerance | < 0.02 in |
| Color density variation | ± 5% from target |
TECHNICAL GLOSSARY
• Squeegee
Polyurethane blade that transfers ink.
• Mesh
Polyester or nylon fabric stretched on a frame.
• Tension
Mesh stretching force, measured in lbf/in.
• EOM
Emulsion over mesh thickness.
• Standardization
Setting consistent parameters for repeatable quality.