Tr90 frames

TR90 is a thermoplastic polyamide produced using Swiss technology. Its primary advantages include being ultra-lightweight (reducing the load on the bridge of the nose), highly flexible (it can bend under pressure without breaking), and possessing a memory function that allows it to return to its original shape. Additionally, it is hypoallergenic, making it the ideal choice for customers with sensitive skin who react to metal or lower-quality plastics.

To ensure global market access, buyers must verify that frames meet ISO 12870:2016 standards for ophthalmic optics. For the US market, FDA registration is mandatory as eyewear is classified as a medical device. For the EU, CE marking and compliance with REACH regulations (ensuring no harmful chemicals like lead or cadmium are present) are essential. Always request Material Safety Data Sheets (MSDS) to confirm the authenticity of the TR90 resin used.

Genuine TR90 has a lower density than PC (polycarbonate), meaning it will float or sink much slower in specific solutions. It also has a higher heat resistance (up to 350°C) and will not show white stress marks when bent. Buyers should perform a flexibility test on samples; TR90 should exhibit significant elasticity and zero permanent deformation after being pulled wide.

Suppliers on Made-in-China.com typically offer OEM/ODM services including laser-engraved logos, custom color injection (using Pantone matching), and various surface treatments like matte, glossy, or rubberized oil finishes. For high-end orders, you can request double-injection molding to combine different colors or materials (like TPE) for enhanced grip and aesthetics.

The most significant risk is material substitution, where suppliers mix TR90 with cheaper plastics to lower costs. To mitigate this, use Trade Assurance services and mandate a pre-shipment inspection (PSI). Another risk is intellectual property infringement; ensure the frame designs do not violate existing patents or trademarks in your target market.

Standard MOQs for custom colors are usually 300-500 pieces per model, but for 'ready-to-ship' stock, you can often find MOQs as low as 12 pieces. When negotiating, focus on Total Landed Cost. Ask for a tiered pricing structure (e.g., 500, 1000, and 5000 units) and negotiate for free spare parts (like extra screws or nose pads) rather than just a lower unit price.

Eyewear is prone to pressure damage. Ensure the supplier uses individual polybags or microfiber pouches, followed by sturdy inner boxes (usually 10-20 frames per box) and double-walled corrugated master cartons. For large sea freight shipments, request palletization to minimize manual handling and potential crushing.

Always conduct business through reputable platforms like Made-in-China.com and prioritize Audited Suppliers. Verify the supplier's business license and check their export history. Use secure payment methods that offer escrow-like protection, and never wire full payments to personal bank accounts; always use the company's registered corporate account.