custom shape eyeshadow palette factory

Key points for custom-shaped eyeshadow box packaging:

1. Preliminary Requirements Confirmation

Design

Provide a 3D model file (in STL/OBJ format) or hand-drawn sketch to clearly define the custom-shaped structure (e.g., curved, polygonal, or row-shaped).

Indicate special features (e.g., magnetic removable, drawer compartments, mirrored folding structure).

Material Selection

PETG plastic is preferred for custom-shaped boxes (highly ductile and suitable for complex curves). For environmentally friendly considerations, rPET recycled material (containing 30% recycled content) or PLA corn plastic can be used.

2. Core Production Process

A [Pattern Design] --> B (3D Modeling and Rendering)

B --> C [Molding]

C --> D{Sample Testing}

Structural Engineering

Create a die plate development drawing based on the design (mark crease/cut locations)

Complex shapes require 3D modeling to verify closing accuracy (tolerance ≤ 0.3mm)

Mold Production

Injection mold for the plastic box body (development cycle 7-15 days)

Die mold for the paper inner tray (honeycomb structure requires reinforced corners for pressure resistance)

Printing Process

Curved surface printing uses screen printing + UV curing (to ensure neon color saturation)

Avoid hot stamping (irregular surfaces are prone to peeling)

III. Key Quality Control Points

Functional Testing

Opening and closing life ≥ 5000 cycles (hinge structure requires metal reinforcement)

45cm Drop test (the inner tray must completely cover the eyeshadow palette)

Compliance labeling

Recycling symbol marked on the box (e.g., PETG triangle mark)

Ink has passed RoHS heavy metal testing

IV. Simple Solution (for small batches)

Materials and Tools

Cut and reassemble the original paper box (use a utility knife to cut and glue with eco-friendly adhesive)

Magnetic inserts allow for separate replacements

Defect Warning

Manual precision error > 1mm (may result in a loose lid)

Poor load-bearing capacity of the paper structure (applicable only to palettes with less than 6 colors)

Mass production priority recommendation: Clarify with the manufacturer the sample fee tier (3D print/physical sample/batch mold), and allow for a margin for losses on first orders.

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