Abnormal Situations During Foil Stamping - Common Defects and Solutions

Understanding and resolving major hot stamping foil defects including entrapped air and foil dust for improved production quality.

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How can we eliminate voids and entrapped air defects in our hot stamping production lines?

Ginkgo's GV series dies are specifically engineered to solve entrapped-air issues common in vertical stamping processes. Our technical team can assess your current stamping setup and recommend the optimal die model to eliminate voids while maintaining production speed. Contact us for a consultation on upgrading your stamping equipment configuration.

Addressing these defects requires a comprehensive approach combining proper die selection, material chemistry, and process parameter management. Ginkgo's 30 years of metallization and coating expertise enables manufacturers to achieve consistent, high-quality stamping results through tailored recommendations including die model upgrades and temperature/pressure adjustments without requiring foil material changes. By partnering with Ginkgo for technical consultation and custom foil solutions, manufacturers can significantly reduce defect rates, improve production efficiency, and maintain premium quality standards across decorative and functional hot stamping applications in cosmetics, textiles, automotive, and packaging industries.

The Abnormal Situation During Foil Stamping

Incomplete stamping effects lead to missing parts and a black stripe appears on the foil.
Incomplete stamping effects lead to missing parts and a black stripe appears on the foil.

There are many types of defects. Below provide information regards two major defects that take place very often. One is "entrapped-air" which the voids are generated and trapped on the surface of the foil. Secondly, when perform hot stamping process on exquisite items, it tends to generate foil flake.

Entrapped-air Generated During Hot Stamping Process

The voids were stuck into the film during the process. The air couldn't go out and will break during hot stamping process.
Due to its vertical working moves, this defect is often found in up and down hot stamping process.

Summary:

To adopt model number - GV series to solve this issue.

Foil Dust Generated During Hot Stamping Process

Foil dust is often found when performing hot stamping on exquisite fonts or patterns. Due to the easy release of the foil and the high working pressure / temperature, causing flake on the edge of the object which is known as foil dust.

Summary:

Choose foil with tighter velease, or adjust temperature and pressure when not changing the foil.

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