Potential Problems in Printing – Description of Problems and Proposed Solutions
Problem | Solution |
---|---|
1. Too thick. | 1. Add thinner. |
2. Too thin. | 2. Use new ink. |
3. Too slow. | 3. Use faster thinner. |
Problem | Solution |
---|---|
1. Poor etching. | 1. Examine cliche with magnifying glass, produce new cliche as needed. |
2. Etching too deep. | 2. Produce new cliche with shallower etching depth. |
3. Wrong cliche type. | 3. Replace with correct cliche. |
4. Wrong screen ruling. | 4. Test new cliche with different fineness of halftone screen. |
Problem | Solution |
---|---|
1. Too soft. | 1. Use harder pad. |
2. Wrong shape. | 2. Test different shape. |
Problem | Solution |
---|---|
1. Soiled surface. | 1. Pre-clean with alcohol. |
2. Not free of distortion. | 2. Switch to different material. |
3. Great differences in height. | 3. Use pad assembly or special pad. |
4. Printing in proximity to edges. | 4. Jig should support substrate adjacent to edges, to prevent pad from extending over edge. |
5. Very structured surface. | 5. Use hard, pointed pad. |
Problem | Solution |
---|---|
1. Jig unstable. | 1. Refabricate jig. |
2. Fast cycle time with bulky pad. | 2. Reduce speed, adjust setting to delayed cycle in front position to prevent pad from wobbling during print stroke. |
Blurred print is understood as the indistinct, hazy reproduction of lines or letters. This deficiency is often confused with distortion.