Acetate Rectangle Optical Frames

Cellulose acetate rectangle optical frames engineered for commercial optical brands, independent designers, and private-label distributors. Built from high-grade cotton-pulp acetate sheets-including Mazzucchelli-equivalent material standards-these frames offer optimal structural memory, deep rich luster, and hypoallergenic properties. Designed with a clean geometric silhouette, the rectangular profile suits standard and progressive prescription lenses, providing structural rigidity across bridge and hinge mounting zones. Factory-direct OEM/ODM manufacturing accommodates custom colorways, laser-engraved temple cores, and specific dimensional tolerances tailored to retail specifications.

High-Density Cellulose Acetate: Sourced from premium raw material blocks, yielding scratch-resistant surfaces that can be hand-polished and tumbled for extended gloss retention.

Precision Wire-Core Integration: Embedded metal wire inside the temples allows precise mechanical adjustment and secure shape retention during fitting.

Multi-Barrel Mechanical Hinges: Equipped with 5-barrel or 7-barrel stainless steel hinges secured via threaded rivets, preventing loosening under repetitive opening cycles.

Ergonomic Saddle Bridge: Sculpted bridge contours distribute frame weight evenly across nasal resting points to eliminate pressure marks.

Tolerant Bevel Groove: V-groove edge milling cut to precise depth angles, securing optical lenses firmly against rotational slippage or edge chipping.

Manufacturing utilizes multi-step CNC milling combined with traditional handcrafting to guarantee dimensional accuracy and structural stability.

Blank Cutting & Milling: Acetate sheets are sliced and routed using 5-axis CNC machines to achieve exact internal groove depths and outer profile symmetry.

Core Shooting: Metal wire cores are inserted into the raw acetate temples via high-frequency heat insertion, ensuring straight alignment without internal bubbling.

Tumbling & Barrel Polishing: Frames undergo a three-stage wooden-peg and compound tumbling process for 72 hours to remove microscopic tool marks, followed by manual wheel buffing for high-gloss edge definition.

Hinge Insertion: Heat-pressed hinge rivets anchor deep into the frame material, with pull-out test thresholds exceeding industry torque standards.

Silhouette: Classic horizontal rectangle with softened rectangular edges to balance angular facial structures.

Custom Sizing: Full scalability across small, medium, and large facial fits based on client technical drawings or physical sample reverse-engineering.

Finishes: Polished gloss, matte sandblasted, or semi-matte tumbled textures.

Temple Core Patterns: Option for visible custom-etched metal wire cores showing through crystal or semi-transparent acetate laminates.

Private Label Branding: Custom logo execution via laser engraving, foil stamping, or metal plaque embedding on temple tips.

Color Development: Custom lamination matching via physical color swatches or Pantone textile/plastic codes for wholesale optical frames.

Hardware Selection: Choice of custom-branded hinge screws, specialized barrel plating (gold, silver, gunmetal, rose gold), and proprietary temple core designs.

Prototype Turnaround: 3D CAD modeling within 48 hours; physical functional prototype delivery within 7 to 10 days from drawing sign-off.

Production operates out of an integrated facility featuring automated CNC template routers, precise optical alignment jigs, and dedicated testing labs.

Raw Material Seasoning: Acetate blocks undergo climate-controlled seasoning to eliminate internal mechanical stress, preventing warping during subsequent cutting and milling.

Dimensional Inspection: 100% optical comparator checks on bridge width, diagonal sizing, and pantoscopic angle tolerances within +/- 0.1 mm.

Mechanical Testing: Hinges undergo salt-spray corrosion tests (minimum 48 hours) and mechanical fatigue testing (10,000 open-close cycles) to verify structural integrity.

Stress Crack Analysis: Polarized light inspection used to detect residual internal stress points around hinge boxes and lens grooves prior to packaging.

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Sunwear optical base frames ready for prescription sun lens integration.

Standard Packaging: Each frame protected with a biodegradable sleeve, packed in individual polybags, organized in master cartons with shock-absorbing partition layers.

MOQ (Minimum Order Quantity): 300 pieces per model, divisible across 3 color variations.

Lead Time: 35 to 45 days for bulk production following sample approval.

Shipping Terms: FOB, CIF, or DDP via air freight or sea container from production hubs.

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