What Is Hot Stamping Foil and How Is It Used?
Learn what hot stamping foil is, how it works, and why it is widely used for packaging, labels, plastics, paper, and decorative printing. Ginkgotech explains foil structure, transfer process, visual effects, and key selection factors for stable stamping quality.
What Is Hot Stamping Foil?
The three major elements of hot stamping are temperature, pressure, and time. Hot stamping foil is the foil with metallic luster. Using high pressure and temperature to stamp the pattern on silicone rubber die with metalized layer and color layer onto the printed matter. It is functional foil with multi-layer coatings. Each coating layer has an unique function and together they achieve hot transferring effect. The structure and preservation methods of hot stamping foil are as shown below.
The Structure of Hot Stamping Foil
PET Film: To support each layer, usually made of PET (polyester film).
Release Film: Also known as separation layer. To separate PET film from Top / aluminum / adhesive layers. It decides pattern transferring.
Top Layer: Protective layer that decides colors and patterns.
Metalized Layer: Metalized electroplating layer. As 90% of the metallic luster of foil come from aluminum, it is also called "aluminum layer".
Adhesion Layer: Thermoplastic resin that attaches to the substrate, could be adjusted per substrate's properties.
Summary:
Release layer allows PET film to be separated and left coating layer attached to stamped objects.
How to Properly Preserve Hot Stamping Foil?
As hot stamping foil is incredibly fragile and the coating layers could not stand downward placement, heavy weight, or dropping. Moreover, 90% of metalized layer is aluminum which has poor resistance to acids, bases and oxidation, the metallic luster will fade when not being preserved properly. Hot stamping foil could be preserved several years when handling with care. However, the shine faded with time and hence we suggest to use them as fast as possible.
Summary:
Methods of preservation
1. Keep them upright.
2. Do not stack on top.
3. Keep dry. Avoid placing on the ground as moisture may affect the quality.
4. After purchasing, use them all within 1 year.
5. Keep them at temperature of 25°C to 30°C and below humidity of 75%.
6. Avoid direct sunlight exposure.
7. Avoid acidic or basic environment.
Gallerys
Structure of hot stamping foil.
Please void hot stamping foil from directly exposing to the ground.
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Download How can I ensure my hot stamping foils maintain optimal metallic luster and pattern transfer quality throughout production?
Ginkgo's hot stamping foils are engineered with precision multi-layer coating structure featuring a metallized aluminum electroplating layer that provides 90% of metallic shine. Our release layer technology ensures clean pattern separation, while customizable adhesion layers are engineered to match your specific substrate properties. By following our proven preservation guidelines—maintaining proper temperature (25-30°C), humidity control (below 75%), and upright storage positioning—you'll achieve consistent, premium-quality foil performance. Let our 30+ years of metallization expertise optimize your packaging decoration process. Contact us for customized foil solutions tailored to your production specifications.
Proper preservation of hot stamping foil is essential to maintain its metallic luster and coating integrity throughout its operational lifespan. With over 30 years of specialized expertise in foil processing and metallization technology, Ginkgo provides comprehensive guidance on optimal storage conditions—maintaining upright positioning, avoiding stacking, ensuring dry environments, storing within 1-year usage windows, controlling temperature between 25-30°C with humidity below 75%, preventing direct sunlight exposure, and avoiding acidic or basic environments. These preservation practices protect the aluminum metallized layer from oxidation and degradation, ensuring consistent quality for your hot stamping operations. Contact Ginkgo today to learn how our eco-friendly hot stamping foils with ISO 9001:2015 certification can enhance your product decoration capabilities while maintaining environmental responsibility.
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