Acetate Square Optical Frames

The acetate square optical frames feature a balanced geometric profile engineered for optical distribution, retail branding, and prescription (Rx) integration. Fabricated from premium cellulose acetate blocks, each frame undergoes precision CNC milling, multi-stage tumbling, and manual polishing to ensure stable dimensional tolerances and skin-friendly wear. Designed for global eyewear brands seeking reliable OEM/ODM manufacturing partnerships, these frames support custom color matching, proprietary sizing, and tailored hardware configurations.

Dimensional Precision: CNC-machined frame fronts and temples maintain strict geometric alignment (+/- 0.1 mm tolerance) to prevent lens distortion during optical edging.

Structural Core Wire: Integrated high-tensile metal wire cores inside the temples allow precise post-heating adjustments by opticians without compromising frame integrity.

Multi-Barrel Hinge Integration: Equipped with heavy-duty 5-barrel or 7-barrel hinges secured by threaded screws, providing robust rotational durability under daily use.

Hand-Polished Finish: 72-hour barrel tumbling followed by manual wheel polishing removes surface micro-scratches, yielding a deep, mirror-like gloss and smooth tactile feel.

Hypoallergenic Comfort: Cellulose acetate material is derived from natural wood and cotton fibers, offering sweat resistance and non-irritating skin contact.

Front Beveling & Groove Milling: The lens groove (beveled V-groove or U-groove) is CNC-milled to precise depth angles, ensuring secure retention of prescription demo lenses or optical Rx lenses.

Temple Core Insertion: Metal core wires are inserted into acetate temple strips via thermal hydraulic press machines, locking structural strength inside the raw material.

Bridge & Nose Pad Integration: Integrated saddle bridges or sculpted universal nose pads are engineered to distribute frame weight evenly across the nasal bridge.

Hardware Anchoring: Rivet hinges are heat-pressed into the frame front and temples, anchoring metal joints deep into the acetate matrix to prevent pull-out under stress.

Profile Geometries: Classic square, soft-square, and geometric angular cuts suitable for diverse facial structures.

Color Finishes: Solid black, crystal clear, Havana tortoiseshell, multi-layer gradient laminates, and custom Pantone color matching.

Thickness Options: Standard 4.0 mm, 5.0 mm, or heavy-duty 6.0 mm acetate sheets for bold, statement aesthetics.

Custom Sizing: Scalable grading for men's, women's, and unisex collections based on client-provided technical drawings or physical samples.

Logo Execution: Laser engraving, metal plaque inlay, foil stamping, or interior core-wire branding visible through transparent acetate.

Hardware Customization: Custom-engraved temple tips, branded screw heads, and proprietary hinge designs.

Sample Development: Rapid prototyping via 3D printing for geometric evaluation, followed by hand-carved acetate master samples within 7-10 working days.

Packaging Solutions: Custom branded hard cases, microfiber cleaning cloths, polybags, and outer cartons printed with barcode/UPC labels.

Production operations are executed in-house across dedicated cutting, milling, tumbling, and assembly lines, supported by systematic quality checkpoints:

Raw Material Seasoning: Acetate sheets undergo climate-controlled resting to eliminate internal material stress prior to cutting.

Dimensional Inspection: 100% Vernier caliper verification of lens caliber, bridge width, and temple spread against approved engineering drawings.

Hinge Fatigue Testing: Sample batches undergo mechanical opening/closing cycle tests (minimum 5,000 cycles) to verify hinge torque retention.

Stress & Drop Testing: Finished frames are subjected to thermal aging and drop tests to detect micro-cracks in hinges or brittle zones.

AQL 2.5 Standard: Final inspections follow ISO 2859-1 (AQL 2.5 major, 4.0 minor) sampling criteria prior to bulk carton sealing.

Prescription Optical Stores: Direct compatibility with single-vision, progressive, and bi-focal prescription lenses.

Blue Light Blocking Collections: Factory-fitted with anti-glare blue light filtering demo lenses for screen-time protection lines.

Fashion Retail Brands: Core staple items for seasonal private-label optical and sun-wear collections.

Individual Packaging: Each frame is encased in a protective polybag, fitted with a temple sleeve, and packed into individual compartment boxes.

Master Carton Spec: 5-layer corrugated export cartons containing up to 300 pieces, secured with moisture-barrier liners.

Minimum Order Quantity (MOQ): 300 pcs per model (splittable across up to 3 colorways, 100 pcs per color).

Production Lead Time: 35-45 days following Pre-Production Sample (PPS) approval and deposit receipt.

Shipping Terms: FOB, CIF, EXW, or DDP via air freight and ocean freight container load.

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