Selecting the ideal frame material is critical when designing or purchasing quality eyewear. Both cellulose acetate and TR90 thermoplastic offer unique advantages tailored to specific market demands—from high-end fashion statement pieces to resilient athletic gear.
When evaluating frame materials for sun glasses, reading glasses, or anti blue light glasses, decision-makers must weigh aesthetic depth against physical performance:

Derived from natural plant cellulose flakes, acetate frames undergo a meticulous fabrication process. Colored polymer sheets are pressed into blocks, sliced into frame blanks, and meticulously hand-polished. This artisanal method enables complex layered tortoise patterns, rich translucency, and substantial physical heft. Additionally, embedded metal wire cores inside the temples permit thermal adjustments, allowing opticians to heat and reshape the frame for custom comfort.
TR90 (Grilamid TR-90) is an advanced Swiss-engineered polymer produced through high-precision injection molding. Featuring an ultra-low density, TR90 frames weigh nearly 85% less than conventional acetate structures. Its high flexural fatigue resistance gives it incredible shape memory—allowing frames to bend under heavy pressure and instantly spring back without cracking. Furthermore, TR90 withstands chemical exposure, UV degradation, and temperatures up to 350°C.
| Feature / Metric | Acetate Frames | TR90 Frames |
|---|---|---|
| Material Source | Plant-based polymer sheets (Cellulose acetate) | Swiss injection-molded memory resin |
| Weight Profile | Medium-Heavy (~25–40g) | Featherlight (~9–16g) |
| Flexibility & Strength | Moderate flexibility; sensitive to sudden impacts | High elasticity; bend recovery without fracturing |
| Visual Aesthetics | Rich layered colors, deep tortoise, high gloss | Matte textures, solid tones, spray coatings |
| Heat Adjustability | Thermal reshapeable with internal core wires | Fixed injection form; heat resistant |
| Best Suited For | High-fashion sunglasses, premium optical frames | Sports sunglasses, kids frames, daily activewear |
| Customization & Logistics | OEM/ODM available; low MOQ from 5 units | OEM/ODM available; global multi-modal shipping |
Which material provides lighter weight for everyday wear?
TR90 is significantly lighter than acetate. Its low density minimizes pressure on the bridge of the nose and ears, preventing wear fatigue over long periods.
Can both frame types be heated and adjusted for fit?
Only acetate frames can be easily heat-adjusted by opticians due to their embedded metal wire cores. TR90 retains its factory molded shape and resists thermal reshaping.
Are custom OEM/ODM services available for both frame options?
Yes, complete OEM and ODM support—ranging from custom branding and 3D modeling to specialized color matching—is fully accessible across both acetate and TR90 production lines.
Determining the right frame material comes down to your target audience and functional priorities. Premium brands seeking luxury aesthetics, rich coloration, and custom fitting will prefer acetate. Conversely, sports, children's, and comfort-driven eyewear lines benefit from TR90's lightweight flexibility and impact resistance. Global buyers can utilize bulk OEM/ODM manufacturing paired with efficient ocean, air, and land logistics. For technical inquiries or custom order consultations, contact leoxiao@cngreenshine.com.
Yiwu Green Shine Arts & Crafts Co., Ltd was founded in 2016 and operates with a dedicated team of 10 fashion eyewear specialists. Exporting 90% of its annual output across major markets including the USA, Germany, Spain, Australia, France, Italy, and Ireland, the enterprise produces over 3 million pairs of sunglasses, optical frames, anti blue light glasses, and reading glasses annually. Utilizing state-of-the-art 3D modeling and rapid prototyping, they deliver full-scope OEM and ODM eyewear solutions.

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