Potential Problems in Printing – Description of Problems and Proposed Solutions
| Problem | Solution |
|---|---|
| 1. Too thick. | 1. Add thinner. |
| Problem | Solution |
|---|---|
| 1. Poor etching.. | 1. Examine cliche with magnifying glass; produce new cliche as needed. |
| Problem | Solution |
|---|---|
| 1. Surface damaged. | 1. Replace pad. |
| 2. Wrong shape. | 2. Use more tapered pad shape. |
| 3. Too soft. | 3. Use harder pad. |
| Problem | Solution |
|---|---|
| 1. Statically charged. | 1. Install ionizing unit. |
| 2. Contaminated with dust particles. | 2. Pre-clean. objects, if necessary, using air hose (air jet). |
| Problem | Solution |
|---|---|
| 1. Soiled artwork. | 1. Checks films. |
| 2. Dust present when films are copied. | 2. Produce new cliche. |
| 3. Unclean environment, dust circulating in surrounding air. | 3. Dust particles, which appear to be air bubbles, can be transferred by pad from substrate to ink. |
This deficiency can be contained easily. If bubbles always appear in same place, problem will be found in cliche or pad. If position of bubbles shifts, problem is caused by dust particles or electrostatic charges.
