Common Defect Analysis and Solutions for Pad Printing Heads Technical Sharing

Bubbles on Head Surface Bubbles cause white spots and missing prints. Causes include fast stirring drawing in air, improper pouring trapping air, insufficient vacuum defoaming, and high viscosity preventing bubble rise. Solutions: stir slowly, pour from one side, perform thorough vacuum defoaming for 3 to 5 minutes, choose moderate viscosity model like HY-902.

Head Easy to Crack Cracking shortens service life. Causes include excessive curing agent making head brittle, high hardness with low flexibility, excessive printing pressure, and material aging. Solutions: use correct 100:2 to 100:3 ratio, choose appropriate hardness, adjust machine pressure, replace regularly, select high tear model like HY-912.

Uneven Ink Pickup Uneven pickup causes inconsistent pattern depth. Causes include rough head surface, inappropriate ink viscosity, mismatched head hardness, uneven pressure, and inconsistent steel plate etching. Solutions: ensure smooth mold, adjust ink viscosity, match hardness to surface, balance pressure, check etching quality.

Blurred Patterns Blurred patterns with jagged edges indicate quality issues. Causes include poor rebound, dirty head surface, fast ink drying, fast printing speed, and excessive hardness. Solutions: choose good rebound model like HY-902, keep head clean, adjust ink drying speed, slow printing speed, use softer head for irregular surfaces like HY-916.

Short Service Life Short life increases costs. Causes include poor silicone quality, low hardness wearing fast, excessive pressure, corrosive ink solvents, and improper storage. Solutions: use reliable brand silicone, choose appropriate hardness, reduce pressure, use mild ink, store in cool dry place.

Summary Choosing quality silicone, following proper operation, and adjusting machine parameters effectively reduce defects, improve quality, and extend head life. Hongye Silicone provides quality products and professional support for pad printing customers.