How to make hairpin

Making a hairpin usually includes the following process steps and material processing. The following describes the basic production process of a metal hairpin. (The process of plastic or composite hairpins may be slightly different).

1. Design and mold making

Design: Draw the shape and functional design of the hairpin through design software, including size, decorative parts, elastic structure, etc.

Mold making: According to the design, make metal or plastic molds for subsequent molding processes.

 2. Material preparation

Metal hairpins: Usually stainless steel, aluminum alloy or iron materials are used because of their high strength, good elasticity and strong rust resistance.

Plastic hairpins: Polypropylene (PP), polystyrene (PS) and other plastic particles are mostly used.

Decorative materials: may include fabric, beads, rhinestones, etc.                                

3. Stamping and cutting

Metal hairpins: Use stamping equipment to process metal sheets into the desired hairpin shape.

Cut the excess edges to ensure the accuracy of size and shape.

Plastic hairpins: The plastic raw materials are injected into the mold after being melted at high temperature through the injection molding process.

4. Polishing and treatment

Metal surface treatment: Polishing: Make the surface smooth and burr-free through mechanical polishing or electrochemical polishing.

Rust prevention: Through electroplating (such as nickel plating, chrome plating) or spraying protective layer.

Plastic surface treatment: Surface finishing, remove the burrs left by injection molding.

                                                                                                                              ps: Customized hair clip for display only.                                                                             

5. Assembly and decoration

Spring assembly: Install the springs required for the opening and closing of the hairpin (if any) to ensure normal function.

Decoration assembly: Fix the decorations to the hairpin by glue, welding, sewing or other methods.

Spraying and printing (optional): Spray color or print patterns on the surface of the hairpin to enhance the aesthetics.

                                                                                                    ps: Customized hair clip for display only.                             

6. Inspection and packaging

Quality inspection: Ensure that the hairpin has a smooth appearance, appropriate elasticity, and firm decoration to meet quality standards.

Packaging: Package the hairpins into single or multiple packages, and attach brand labels.

Summary of common process

Metal processing: stamping, cutting, polishing, electroplating.

Plastic processing: injection molding, trimming, surface decoration.

Assembly process: spring installation, gluing, decoration fixation.

If the hairpin has complex decoration or special functions (such as luminescence or magnetism), more processing steps may be involved.

In Conclusion