Color Formula of Eye Shadow Powder Pressed Copper Sheet: How To Customize Color According To Demand

In modern cosmetics manufacturing, eye shadow powder pressed copper sheet is not only a container and support, but also bears a colorful visual function. With consumers' pursuit of personalization and fashion, brands need to take into account the appearance appeal, brand tone, process stability and environmental protection standards when customizing the color formula of eye shadow powder pressed copper sheet. This article will gradually analyze how to customize the color of eye shadow powder pressed copper sheet according to demand from raw material selection to color matching process.

1. Substrate characteristics and base color considerations

Before making a color formula, the base color of the copper sheet itself must be evaluated first. Copper sheets of different purity or alloy composition may have a metallic color ranging from red copper to brass. For light-colored or translucent coatings, this base color will affect the final color. Therefore, color engineers need to do a base material covering experiment when formulating to determine whether it is necessary to pre-spray the base color to ensure the accuracy of the main color.

2. Selection of color paste and pearlescent pigments

The color of copper sheets is mainly achieved through high-adhesion color paste or pearlescent paint. Commonly used inorganic pigments include iron oxide series (red, yellow, brown), titanium dioxide (increase hiding power), ultramarine (blue tone), chrome green, etc.; organic pigments such as phthalocyanine blue and phthalocyanine green are used to enhance brightness. If you want to show delicate metallic glitter or pearlescent effect under light, you can add mica pearlescent powder, metal aluminum powder or interference pearlescent pigment to create different visual levels. The light resistance, heat resistance and dispersibility of each pigment must be verified one by one in the experiment.

3. Process adaptation: spraying and baking conditions

Different color formulas have unique requirements for process conditions. For example, dark color formulas usually require multiple spraying and superposition to ensure saturation, while pearlescent colors need to control the spraying pressure and gun distance to avoid uneven distribution of pearlescent particles and cause color difference. After spraying, the copper sheet needs to be cured by constant temperature baking. The baking temperature is generally between 120–160°C, which is precisely adjusted according to the thermal stability of the resin system and the pigment. The temperature control at this stage directly affects the color brightness and adhesion.

4. Customize personalized color cards according to brand needs

Eyeshadow palettes often correspond to different series or seasonal restrictions, and the brand will propose specific color schemes. When customizing color formulas, colorists must first design the main color according to the target color card, and then fine-tune the grayscale, brightness, and saturation to ensure brand color recognition and beauty. For example, the high-end series prefers matte and soft cold tones, while the young and energetic series prefers bright colors with high saturation. Each customized formula must be confirmed by multiple comparison samples until the brand approves it.

5. Environmental protection and regulatory compliance

In the global supply chain, the color formula of eyeshadow powder pressed copper sheets must also meet the environmental protection requirements of different markets. For example, the EU REACH regulations have strict restrictions on harmful heavy metals (such as lead, cadmium, and mercury), and the North American market also has standards for VOC content and food-grade safety. Therefore, all color pastes and additives must provide third-party test reports to ensure that the coating is safe and non-toxic and will not migrate to the cosmetic powder.

Conclusion

The color customization of eyeshadow powder pressed copper sheets is a science that integrates chemical formulas, aesthetic design, and precision craftsmanship. Through scientific formula development processes, rigorous process control and full compliance with regulations, brands can produce eyeshadow copper flakes that are both safe and beautiful and accurately match product positioning. In the future, with the introduction of new materials and intelligent production technologies, the flexibility and stability of customized colors will continue to improve, bringing more creative space to the cosmetics industry.