What are the common printing defects in the process of tin can customization?

In the tin can customization industry, a variety of undesirable conditions may occur during the printing process, which will affect the final quality and appearance of the tin can. Understanding these printing problems helps us take measures to improve and meet customer needs. The following are fourteen common undesirable conditions in tin can printing:

1. Color difference: The printed color is different from the design or sample, which may be caused by factors such as ink, iron sheet, machine, environment, etc.

2. Color spots/dirty spots: Color spots or dirty spots may appear during the printing process, affecting the aesthetics of the tin can.

3. Misalignment: The lines of the printed pattern may be misaligned, resulting in an incomplete or inaccurate pattern.

4. Track shadow: Track shadow may appear during the printing process, that is, the edge of the printed pattern appears shadowed or blurred.

5. Furnace ash: Dust or furnace ash may adhere to the surface of the tin can during the printing process.

6. Scratches: The surface of the tin can may be scratched due to improper mechanical operation.

7. Frame marks: Marks may be left on the surface of the tin can due to equipment problems during the printing process.

8. De-screening: The dots of the printed pattern may fall off, resulting in an incomplete pattern.

9. Concave and convex points: The surface of the tin can may be uneven.

10. Dust: Dust may adhere to the surface of the tin can during the printing process.

11. Uneven coating: The coating on the surface of the tin can may be uneven, affecting the printing effect.

12. Fisheye/crater: Defects similar to fisheyes or craters may appear on the printed surface.

13. Dirty back: The back of the tin can may become dirty due to contamination during the printing process.

14. Paint peeling: The printed paint may fall off due to insufficient adhesion.

These poor printing problems require strict quality control and testing during the production process to ensure the high quality and aesthetics of the tin can products. By understanding these common problems, we can better prevent and solve problems in the printing process and meet the needs of customers.