Although a metal zipper looks small, its manufacturing involves highly detailed steps. From weaving the zipper tape, to installing the metal teeth, plating color, attaching sliders, and final QC—every stage determines how smooth, durable, and reliable the zipper will be.
As a professional zipper manufacturer, HIGER will walk you through the complete metal zipper production process—explained in a way that’s easy for beginners to understand, yet professional enough for designers and industry users.
1. Making the Zipper Tape
The foundation of every zipper is its tape. Tape is woven using polyester, nylon, or cotton yarns. Polyester is the most widely used because it combines strength, flexibility, and colorfastness. Cotton tape is preferred for garments requiring natural materials, while nylon blends may be used for higher softness.
Tape width varies by zipper size: #3, #5, #8, and #10. A wider tape is needed to support larger metal teeth. During weaving, the tape edges are reinforced to prevent fraying and to ensure that the metal teeth can be mounted securely.
2. Dyeing the Tape
The woven tape is dyed according to the customer’s requested color. Factories rely on digital color-matching systems to achieve high accuracy. Pantone colors, fabric swatches, and color cards can all be used as references.
After dyeing, the tape undergoes fixing, washing, and drying. High-quality dyeing ensures the tape retains color during washing, ironing, and long-term use.
3. Mounting the Metal Teeth
Metal teeth are made from metal wire, commonly brass (copper + zinc), aluminum, nickel-silver alloy.
- Brass teeth: The most common, strong and ideal for plating.
- Aluminum teeth: Lightweight but softer, used for special applications.
- Nickel-silver teeth: Highly corrosion-resistant, premium appearance.
The metal wire is stamped by precision molds into individual teeth. These molds define the tooth shape, locking angle, and bite consistency. After stamping, the teeth are mounted onto the dyed tape using high-pressure mounting machines that ensure uniform spacing and tight bonding.
4. Teeth Shaping & Polishing
After mounting, the teeth undergo shaping and polishing. Shaping corrects minor misalignment and ensures consistent bite quality. Polishing removes burrs and sharp edges through tumbling, brushing, or mechanical grinding.
Well-polished teeth help prevent fabric snagging and ensure the zipper glides smoothly.
5. Electroplating the Metal Teeth
Electroplating adds color, corrosion resistance, and durability. Common finishes include silver, nickel, antique brass, gunmetal, light gold, rose gold, and matte black. The chain undergoes multiple baths: cleaning, activation, plating, and sealing. Proper plating ensures resistance to sweat, washing, oxidation, and friction.
6. Chain Ironing (Resin Oil Coating)
After plating, a resin-based finish (known as lacquer oil) is applied to protect the plating layer. Heat is used to cure the coating, enhancing color stability and zipper smoothness.
7. Cutting the Chain
The chain is cut according to customer specifications. High-precision cutting machines ensure consistent length, which is crucial for garment manufacturers.
8. Final Assembly: Open-End or Closed-End
Final assembly determines the zipper type.
Open-End Zippers (for jackets)
- Tape reinforcement with glue
- Insertion pin & box installation
- Slider assembly (machine or manual)
- Top stop installation
Closed-End Zippers (for bags, pants, etc.)
- Bottom stop installation
- Slider assembly
- Top stop installation
Some sliders have special structures that are not suitable for machine assembly and must be inserted manually. When manual assembly is required, the production time will be slightly longer.
Conclusion: The Engineering Behind Every Metal Zipper
Although metal zippers are small, they embody a combination of materials science, mechanical processing, electroplating technology, and precision assembly. HIGER is committed to providing high-quality, stable, and durable metal zippers to customers worldwide, ensuring smooth and reliable performance with every pull.
Ready to upgrade your products with premium, professionally engineered metal zippers? Contact HIGER today to get samples, custom solutions, or expert support for your next project!
Contact Information:
Our company, SHANGHAI HIGER GARMENT ACCESSORIES CO.LTD, specializes in zipper production, welcome professionals and companies with accessory needs from all over the world to communicate and negotiate with us. For detailed product information, please visit our official website at http://higer-zipper.com , we look forward to your business to provide high-quality, high standards and professional services.
For any questions or further information, please contact us via:
Whatsapp:+86 135 2414 2125
Email: cs-1@allin-higer.com
Website: https://higer-zipper.com