Overview

This case study explores the process of creating a high-quality hard enamel pin based on a character illustration. The client requested a detailed, gold-plated enamel pin with vibrant colors and a smooth finish. With careful planning and skilled craftsmanship, we transformed the artwork into a durable, visually striking collectible pin.

Pin Design Details

Some key details included:

• Gold-plated metal finish to enhance this hard enamel pin’s premium look.
• Hard enamel process for durability and a smooth, polished surface.
• Accurate color matching to retain the integrity of the original illustration.
• 44.5mm pin size to maintain fine details while keeping it wearable.
• Double rubber clutch attachment for a secure hold.
• High-quality production with precise detailing in both metalwork and enamel.

Since this design contained intricate line work and multiple enamel colors, special attention was required in mold engraving, color filling, wet grinding and polishing to ensure a flawless final product.

Design and Manufacturing Process

1. Artwork Conversion & Digital Proofing

The client provided a design, which we converted into a production-ready vector design. This step was crucial for ensuring smooth transitions from digital to physical form. The proofing process included:

• Metal line adjustments: Ensuring all lines were thick enough for proper molding.
• Color separation: Assigning accurate Pantone colors for enamel filling.
• Plating consideration: Adjusting details to complement the gold-plated finish.

Once the client approved the digital proof, we moved forward with mold creation.

2. Mold Engraving

A 2.0mm zinc alloy mold was created, featuring precise engravings of the character’s facial features, accessories, and decorative elements.

3. Enamel Filling & High-Temperature Baking

The recessed areas in the stamped metal were filled with hard enamel colors, ensuring longevity and a vibrant finish. Each color was applied carefully to avoid contamination, and the enamel was then baked at high temperatures to harden. Special care was taken to:

• Ensure precise color placement in the character’s hair, accessories, and outfit.
• Use multiple enamel layers for an even, polished surface.
• Match the artwork’s original tones to maintain visual accuracy.

4. Wet Grinding

Wet grinding can make the metal lines on the pin visible.

4. Polishing & Gold Plating

Once the enamel was fully cured, these hard enamel pins underwent multiple rounds of polishing to achieve a smooth and uniform finish. The surface was ground down carefully to make the metal lines flush with the enamel. After polishing, a gold plating process was applied, enhancing the overall elegance of the design.

5. Attachment & Quality Control

The final step involved attaching two rubber clutches to the back of each pin for secure fastening. A thorough quality control inspection was conducted to check for:

• Correct color application with no misaligned sections.
• Smooth metal plating without rough edges.
• Proper clutch attachment ensuring durability.

6. Packaging & Delivery

To ensure these hard enamel pins arrived in perfect condition, each one was packaged in a PVC bubble bag, preventing scratches during shipping.

Client Feedback & Outcome

The client was extremely pleased with the final product, sharing positive feedback:
“The attention to detail is incredible! The gold plating gives it an elegant shine, and the colors are exactly as we envisioned. The pin has a solid, high-quality feel, and the double clutch ensures it stays in place. We’re excited to share these with our supporters!”

This hard enamel pin project demonstrated our ability to transform a digital illustration into a beautifully crafted enamel pin, ensuring both durability and aesthetic appeal.

Conclusion

By combining expert mold engraving, high-quality enamel filling, and precision polishing, we successfully delivered a luxurious and visually stunning enamel pin. This case highlights the importance of quality materials, skilled craftsmanship, and close attention to client specifications.

For anyone looking to create custom enamel pins, we provide professional design consultation, high-quality production, and reliable quality control to bring your vision to life!