Factory-direct OEM/ODM solutions engineered with precision polymer molds, UV400 protective optics, and certified global compliance for enterprise distributors.
TR90 (Grilamid TR-90) represents the pinnacle of thermoplastic transparent polyamide technology developed in Switzerland. For B2B buyers, understanding its structural molecular advantage is key to dominating retail channels.
TR90 possesses a flexural fatigue memory index exceeding 620 kg/cm². Under extreme physical deformation, the polymer chains revert seamlessly to their original geometric orientation without structural micro-fractures, ensuring zero frame warping over years of intensive usage.
Weighing approximately 85% less than traditional cellulose acetate and 40% less than standard polycarbonate, TR90 frames dramatically alleviate pressure on the nasal bridge (temporal lobe stress index), making them the gold standard for sport, tactical, and daily wearing comfort.
TR90 maintains operational stability from -30°C to +80°C (-22°F to +176°F). It releases zero chemical residues or plasticizers upon prolonged contact with human sweat, making it 100% hypoallergenic, ISO 10993 skin-compatibility verified, and REACH non-toxic compliant.
| Engineering Attribute | TR90 (Swiss Polymer) | Cellulose Acetate | Standard Polycarbonate (PC) | Pure Titanium |
|---|---|---|---|---|
| Specific Gravity / Density | 1.14 g/cm³ (Ultra-Light) | 1.28 – 1.32 g/cm³ | 1.20 g/cm³ | 4.51 g/cm³ |
| Flexural Elasticity Memory | Exceptional (>98% Recovery) | Low (Requires Core Wire) | Moderate (Prone to Stress Crack) | High (Cold-Bend Memory) |
| Impact Resistance (Izod Notched) | > 12 kJ/m² (Shatterproof) | ~ 4.5 kJ/m² | > 15 kJ/m² | Extreme |
| Biocompatibility / Skin Allergy | 100% Hypoallergenic | Good (Natural Base) | Moderate (Coating Dependent) | 100% Hypoallergenic |
| OEM Injection Mold Cycles | 25 - 35 Seconds (High Yield) | CNC Cutting (Slow Workflow) | 20 - 30 Seconds | Stamping & Laser Welding |
Integrating 15 years of industry leadership in Shenzhen with state-of-the-art automation, high-precision tooling, and strict zero-defect quality control protocols.
Yintai Eyewear is a leading manufacturer based in Shenzhen, Guangdong Province, China, specializing in eyewear production. After 15 years of dedicated development, we have evolved into a modern enterprise integrating technological R&D, precision manufacturing, and global sales. Located in the industrial park at Fuji Land Building, our production line is equipped with fully automated injection systems, high-speed CNC machining centers, and Class 10,000 dust-free cleanrooms, ensuring both stable production capacity and unwavering quality.
From raw material procurement and mold development to finished product assembly, we achieve complete vertical integration across core production processes. This translates to controllable costs, faster delivery cycles (15-25 days lead time), and consistent product qualification.
We implement a rigorous quality management system spanning IQC (Incoming Quality Control), IPQC (In-Process Quality Control), and FQC (Final Quality Control), achieving a product qualification rate reaching 99%. Fully compliant with ISO9001, CE, RoHS, and FDA standards.
Standardizing OEM/ODM procurement parameters to reduce operational friction, protect intellectual property, and ensure seamless regional logistics.
Supporting flexible minimum order quantities starting from 10 units for stock styles to custom color production batches. 3D rapid prototyping delivered within 72 hours for client design validation.
Laser engraving, silk-screen printing, metallic logo foil inlaying, high-end 3-barrel or 5-barrel German OBE hinges, soft-touch rubberized painting, and custom metallic temple core designs.
Complete assembly with Premium TAC Polarized, Polycarbonate UV400, Photochromic, High-Index Prescription Optical (CR-39/1.67), or Blue-Light Blocking protective lenses.
Mutual Non-Disclosure Agreements signed prior to CAD mold release. Exclusive territorial manufacturing guarantees for custom patented frame geometry and design rights.
Tailoring TR90 structural modifications to meet the stringent demands of diverse commercial sectors worldwide.
For outdoor cycling, extreme sports, and military/tactical applications, TR90 frames are paired with impact-resistant polycarbonate lenses. Integrated dual-injection anti-slip TPR rubber temples ensure zero displacement during high-impact movement.
Children's frames require extreme flexibility to prevent facial trauma during play. TR90's high elasticity allows 180-degree temple bending without snapping, utilizing non-toxic food-grade color pigments safe for young wearers.
Combining TR90's lightness with rich PVD metallic plating, translucent pastel injection, and hydro-dipping finishes enables fashion brands to offer lightweight sunglasses with high-end aesthetic appeal.
Pioneering next-generation polymer innovations, sustainable circular materials, and smart wearable integration.
Transitioning from fossil-fuel polyamides to castor oil-derived bio-TR90. Reduces carbon footprint by up to 45% while preserving identical mechanical elasticity, tensile strength, and optical transparency.
Engineered hollow-cavity TR90 temple designs for housing micro-speakers, Bluetooth 5.4 chips, and battery modules without sacrificing structural integrity or ergonomic weight distribution.
Upgrading CNC tooling precision to sub-0.01mm tolerances, eliminating visible mold parting lines (flash removal) and enabling ultra-thin 1.2mm frame profiles with high structural rigidity.
Providing overseas buyers with complete documentation, fast technical support, and door-to-door DDP global logistics capabilities.
Our multilingual sales and technical engineering support team guarantees response within 24 hours for RFQs, CAD drawing adjustments, and sample revisions. We provide complete regulatory documentation support including ISO9001 quality certificates, CE Declaration of Conformity (EN ISO 12312-1:2013/A1:2015), FDA Device Registration (21 CFR 801.410 drop ball test verified), and RoHS/REACH SVHC toxicological safety reports.
Answers to common operational, technical, and commercial questions asked by enterprise buyers.
High-fashion, optical, and sports frames ready for global wholesale distribution and custom logo integration.
Yintai Eyewear