The Non-toxic Coating of The Empty Makeup Tin Tray Ensures Safety And Health

In the cosmetics industry, consumers are increasingly concerned not only about the safety of the ingredients of the cosmetics themselves, but also the health and environmental friendliness of the packaging materials, which are gradually becoming important considerations. As a container for powder products such as eye shadow, blush, and highlighter, the empty makeup tin tray is popular for its metallic texture, recyclability, and versatility. And a detail that is often overlooked but crucial is the coating used on the surface of the tin tray.

Why does the tin tray need a coating?

Empty makeup tin trays are usually made of tinplate or aluminum. Although these metals are strong, they may be exposed to rust, corrosion, and metal ion migration when in direct contact with powder products, especially in a humid environment. Therefore, applying a protective coating on its surface can not only prevent the metal from reacting with the cosmetic ingredients, but also improve the aesthetics and user experience.

Non-toxic coating is the basic guarantee

In order to ensure the absolute safety of products that come into contact with the skin, regular manufacturers generally use food-grade or cosmetic-grade non-toxic coating materials when producing tin trays. These coatings must meet a number of international safety standards, such as:

EU REACH regulations

US FDA certification

China GB 4806.10 food contact material standard

Coatings that meet these standards must pass tests such as heavy metal content, migration tests, and volatile organic compound residue tests to ensure that no harmful substances are released even under long-term use, storage, or heat.

Continuous upgrading of coating technology

Modern tin plates often use epoxy resin coatings or polyester water-based coatings. Compared with traditional oil-based coatings, these new environmentally friendly coatings do not contain bisphenol A (BPA-Free) and low VOC (volatile organic compounds), which are more friendly to the environment and the human body.

At the same time, some high-end brands have also introduced UV curing technology or nano-coating technology to enhance the adhesion and wear resistance of the coating, so that the tin plate can maintain a smooth and clean surface during repeated loading and unloading and replacement of the powder core.

Combination of transparent coating and color process

In order to balance safety and aesthetics, tin plate manufacturers have also developed a superposition process of transparent protective coating and color coating. For example, first spray the color layer to create a brand-specific visual effect, and then cover it with a transparent non-toxic protective layer to achieve bright colors without affecting health.

In addition, some brands will also use matte coating or laser engraving LOGO on the back of the tin plate to increase anti-slip performance and improve product texture.

Future trends: bio-based and degradable coatings

As the trend of sustainable packaging develops in depth, the industry has also begun to explore new materials such as plant-based non-toxic coatings and water-based degradable resin coatings. These innovations not only further reduce the impact on the human body and the environment, but also provide technical support for the empty cosmetic tin plate to move towards "green manufacturing".