Pad Printing Head Defects Troubleshooting Guide
author: Lulu
2026-09-07
Pad head quality directly affects printing results and efficiency. Hongye Silicone 25 years experience summarizes 6 most common defects and solutions.
Defect 1 Surface Pores
Causes: insufficient vacuum degassing, fast pouring entraining air, mold dust. Solutions: degas 5-8 minutes until no bubbles, pour slowly from one side, clean mold, try secondary degassing if needed.
Defect 2 Cracking or Breaking
Causes: insufficient tensile tear strength, internal pores as stress points, improper operation. Solutions: choose high strength models like HY-902 tensile ≥4.0MPa tear ≥18kN/m, ensure sufficient degassing, handle carefully, avoid sharp objects, replace when cracks appear.
Defect 3 Blurry Patterns
Causes: oil or dust on head surface, insufficient resilience, wrong ink viscosity, wrong pressure. Solutions: clean head before use, choose good resilience models like HY-912, adjust ink viscosity, adjust pressure, regular cleaning.
Defect 4 Uneven Ink Transfer
Causes: inconsistent surface smoothness, uneven hardness, inconsistent cliché depth, insufficient ink stirring. Solutions: choose fine texture silicone like HY-902 15000mPa.s, ensure uniform mixing, check cliché depth, stir ink thoroughly, adjust head angle.
Defect 5 Deformation
Causes: low hardness insufficient support, insecure installation, high temperature softening. Solutions: choose higher hardness models like HY-902 28A, secure installation with fixtures, control temperature 15-35°C, replace deformed heads.
Defect 6 Short Service Life
Causes: insufficient wear resistance, improper cleaning with corrosive solvents, excessive speed or pressure. Solutions: choose high wear models like HY-902 life more than double, use dedicated cleaner, adjust speed and pressure, regular maintenance, establish usage records.
Conclusion
Follow above methods to troubleshoot, most problems can be resolved. Choosing stable quality silicone raw material is fundamental. Hongye Silicone full series products strict inspection with COA, stable reliable quality.
Defect 1 Surface Pores
Causes: insufficient vacuum degassing, fast pouring entraining air, mold dust. Solutions: degas 5-8 minutes until no bubbles, pour slowly from one side, clean mold, try secondary degassing if needed.
Defect 2 Cracking or Breaking
Causes: insufficient tensile tear strength, internal pores as stress points, improper operation. Solutions: choose high strength models like HY-902 tensile ≥4.0MPa tear ≥18kN/m, ensure sufficient degassing, handle carefully, avoid sharp objects, replace when cracks appear.
Defect 3 Blurry Patterns
Causes: oil or dust on head surface, insufficient resilience, wrong ink viscosity, wrong pressure. Solutions: clean head before use, choose good resilience models like HY-912, adjust ink viscosity, adjust pressure, regular cleaning.
Defect 4 Uneven Ink Transfer
Causes: inconsistent surface smoothness, uneven hardness, inconsistent cliché depth, insufficient ink stirring. Solutions: choose fine texture silicone like HY-902 15000mPa.s, ensure uniform mixing, check cliché depth, stir ink thoroughly, adjust head angle.
Defect 5 Deformation
Causes: low hardness insufficient support, insecure installation, high temperature softening. Solutions: choose higher hardness models like HY-902 28A, secure installation with fixtures, control temperature 15-35°C, replace deformed heads.
Defect 6 Short Service Life
Causes: insufficient wear resistance, improper cleaning with corrosive solvents, excessive speed or pressure. Solutions: choose high wear models like HY-902 life more than double, use dedicated cleaner, adjust speed and pressure, regular maintenance, establish usage records.
Conclusion
Follow above methods to troubleshoot, most problems can be resolved. Choosing stable quality silicone raw material is fundamental. Hongye Silicone full series products strict inspection with COA, stable reliable quality.
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