empty magnetic eyeshadow palette factory 

In recent years, magnetic eyeshadow palettes have become a popular category in the cosmetics market due to their customizability, portability and innovative design. According to the 2025 Beauty Industry Report, the global magnetic eyeshadow palette market has reached US$580 million, with an annual growth rate of 24.3%. The core production process of magnetic eyeshadow palettes, from raw material selection, magnetic structure design to finished product quality control.

1. Core process links of magnetic eyeshadow palettes

1. Raw material screening and proportioning

Base powder: high-purity mica (particle size 5-15μm) is compounded with titanium dioxide to ensure color rendering and ductility. Some high-end products add pearl powder (particle size 2-8μm) to enhance the pearlescent effect.

Magnetic components: Neodymium iron boron magnets (N35 grade) are nickel-plated to prevent oxidation, and the magnetic force of a single magnet is ≥12N. Magnets with a diameter of 3mm can withstand a pulling force of 5kg.

2. Precision machining of magnetic structure

Disc mold: CNC precision-carved aluminum mold (tolerance ±0.05mm), embedded magnet slots need to be polished three times, surface roughness Ra≤0.8μm.

Eyeshadow block molding: When the hydraulic press (pressure 30-50MPa) is pressed, the magnetic suction sheet (thickness 0.2mm stainless steel substrate + 0.5mm flexible adhesive layer) needs to be embedded synchronously.

3. Assembly and quality inspection

Magnetic force test: Use a Gauss meter to detect the adsorption force, the standard is that the single-color block horizontal load ≥200g does not fall off.

Safety verification: Pass the EU REACH regulation test, the heavy metal (lead, arsenic) residue must be less than 10ppm.

2. Technical difficulties and solutions

Problems

Solutions

Technical indicators

Magnet displacement

Fixed with UV curing glue (curing time 3s)

Displacement ≤ 0.1mm

Color powder agglomeration

Add 0.3% silicone oil additive

Agglomeration rate < 0.5%

Short opening and closing life

Hinge structure uses DLC coated steel sheet

Opening and closing times ≥ 50,000 times

3. Environmental protection and innovation trends

Degradable magnetic suction system: corn starch-based magnetic sheet, the degradation cycle is shortened to 6 months.

Intelligent temperature control technology: built-in NTC sensor, automatically releases magnetic force to protect the eyeshadow texture when the temperature is > 40℃.

Conclusion

The production process of magnetic eyeshadow palette combines the cross-innovation of material science, precision machinery and cosmetic chemistry. In the future, with the application of 3D printed magnetic suction structure (accuracy up to 0.01mm) and AI color matching system, this category will further break through traditional production limitations.

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