What quality tests are done on eyeglass frames? The main quality tests on eyeglass frames are hinge fatigue testing, salt spray corrosion testing, nickel release testing, tensile and drop testing, sweat resistance, color fastness, and dimensional stability. These tests confirm that a frame can survive daily wear, meet market regulations, and protect brand reputation. For B2B buy...

How do I check the quality of eyeglass frames? To check the quality of eyeglass frames, inspect six points: hinge action, weld joints, surface finish, frame alignment, screw tightness, and material feel. A quality frame opens smoothly, sits flat, has clean edges, and shows no gaps or rough spots. For B2B buyers, a written inspection checklist plus AQL sampling reduces returns an...

What is the process of custom frame development? Custom frame development follows seven main steps: requirement discussion, design drawing, engineering review, prototype or 3D printing, mold making, sample approval, and bulk production. Each step has its own timeline and decision point. Buyers who understand this process can plan launches more accurately, avoid delays, and contr...

How much does it cost to develop custom eyeglass frames? Developing custom eyeglass frames typically costs from a few hundred to several thousand US dollars, depending on the material, complexity, and order volume. The total includes tooling or mold cost, engineering and sample fees, and unit cost per frame. Stock customization and ODM modification cost far less than full OEM de...

Can I get custom eyeglass frames made? Yes, you can get custom eyeglass frames made. There are three main production paths: full OEM development with your own design and mold, ODM modification of an existing frame model, and stock frame customization with your logo and colors. Each path has different MOQ, lead time, and cost. READSUN Optical supports all three routes for importe...

How do I find a custom eyeglass frame manufacturer? To find a custom eyeglass frame manufacturer, you need to evaluate material capability, factory size, certifications, sample process, MOQ, and communication quality. The right partner should produce acetate, TR90, titanium, and stainless steel frames, offer OEM and ODM services, and provide full quality documentation. READSUN O...

What Does OEM Mean in Eyewear Manufacturing? In eyewear manufacturing, OEM stands for Original Equipment Manufacturer. It means the factory produces eyeglass frames according to the buyer's design, specifications, or sample — not the factory's own design. The buyer owns the design, and the finished frames carry the buyer's brand. OEM is the standard model for brands that want full contro...

What Is the Difference Between OEM and ODM in Eyewear? The main difference between OEM and ODM in eyewear is who owns the design. In OEM (Original Equipment Manufacturing), the buyer provides the design, specifications, or sample, and the factory produces it. In ODM (Original Design Manufacturing), the factory provides an existing design or model, and the buyer applies their own brand, l...

Can Eyeglass Frame Colors Be Customized for Wholesale Orders? Yes, eyeglass frame colors can be customized for wholesale orders. Acetate frames support the widest range of color options — including solid, transparent, tortoiseshell, two-tone, and layered patterns. Metal frames can be customized through plating and coating colors. For B2B buyers, color customization is one of the fastest ...

What Is the Difference Between Plastic and Metal Eyeglass Frames? The main difference between plastic and metal eyeglass frames is material structure: plastic frames are molded or cut from acetate, TR90, or injected plastic, while metal frames are formed from titanium, stainless steel, or Monel. Plastic frames are lighter in feel, easier to color, and lower in cost. Metal frames are stro...

What Are the Different Types of Nose Pads on Eyeglass Frames? The two main types of nose pads on eyeglass frames are adjustable nose pads and integrated nose pads. Adjustable pads sit on metal arms and can be repositioned for a custom fit. Integrated pads are molded directly into the frame front and stay fixed. For B2B buyers, the choice affects comfort, return rate, and market fit — esp...

What Are the Different Types of Nose Pads on Eyeglass Frames? Eyeglass frames typically use two nose pad types: adjustable nose pads (metal arms, repositionable) and integrated nose pads (molded into the frame, fixed). For B2B buyers, the choice directly affects comfort, return rates, and market fit — especially for low-bridge and Asian-fit customers. Nose Pads for Glasses: The Two ...

What Are the Different Eyeglass Frame Hinge Types? The main eyeglass frame hinge types are standard hinges, spring hinges, barrel hinges, and hidden or integrated hinges. Hinges are the most common failure point on any frame, so choosing the right type affects durability, comfort, repair rate, and after-sales cost. Spring and barrel hinges usually last longer than basic standard hinges. ...

What Are the Different Eyeglass Frame Shapes? The main eyeglass frame shapes are round, square, rectangle, oval, cat-eye, aviator, browline, geometric, panto, and oversized. Each shape creates a different style and suits different face types and customer segments. For B2B buyers, shape is one of the fastest ways to build a collection because it affects style positioning, market demand, a...

What are hypoallergenic eyeglass frames? What are hypoallergenic eyeglass frames? Hypoallergenic eyeglass frames are frames designed to minimize or eliminate allergic skin reactions. They are made from materials that contain little or no nickel, or from metal frames with nickel-free plating. Common hypoallergenic options include titanium, beta titanium, acetate, Optyl, TR9...

Can you be allergic to eyeglass frames? Yes, you can be allergic to eyeglass frames, most commonly due to nickel in metal frames. Nickel is the most frequent cause of contact allergy worldwide. Other possible triggers include cobalt, chromium, and rubber or silicone in nose pads. Symptoms include redness, itching, dry skin, and small bumps where the frame touches the face. The solution is to...

What are nickel-free eyeglass frames? Nickel-free eyeglass frames are frames made from materials that contain little or no nickel, or frames that are plated with a nickel-free barrier system. They are designed for people with nickel sensitivity, a common cause of skin irritation from metal eyewear. Common nickel-free options include titanium, beta titanium, 316L stainless steel with nickel-f...

Are stainless steel eyeglass frames hypoallergenic? Yes, stainless steel eyeglass frames can be hypoallergenic, especially when made from 316L or 304 medical-grade stainless steel with nickel-free plating. Stainless steel itself contains some nickel, but the release rate is very low when the material grade and plating are correct. For sensitive-skin markets, buyers should always confirm nick...

What are the lightest eyeglass frame materials? The lightest eyeglass frame materials are beta titanium, pure titanium, and Ultem, followed by TR90 and stainless steel. Acetate is the heaviest of the common materials. Weight depends not only on the material but also on frame structure, wall thickness, and lens size. Rimless and semi-rimless designs are lighter than full rim. For B2B buyers, ...

What is cellulose acetate and what are its advantages? Cellulose acetate is a plant-based plastic made from cellulose (usually cotton linters or wood pulp) treated with acetic acid and acetic anhydride. It is the main material used in premium fashion eyewear. Its advantages include rich color depth, layered transparency, smooth polishing, and easy repair. Cellulose acetate frames feel denser...

What is optyl and are optyl frames hypoallergenic? Optyl is a thermoset epoxy resin developed specifically for premium eyewear, and yes, Optyl frames are generally considered hypoallergenic. Optyl is lightweight, dimensionally stable, and skin-friendly. Unlike acetate, it does not contain plasticizers that can leach out over time, which reduces the risk of skin irritation. Optyl frames resis...

What is ultem and what are ultem frames? Ultem is a high-performance thermoplastic also known as PEI (polyetherimide). It is used in eyewear to make ultra-thin, lightweight, and heat-resistant frames. Ultem frames can be molded into very thin profiles without losing strength, which makes them ideal for premium slim designs and minimalist collections. Unlike acetate, Ultem does not need polis...

What is monel and are monel frames hypoallergenic? Monel is a nickel-copper alloy widely used in lower-cost metal eyewear frames. It is strong, easy to weld, and holds shape well. However, monel contains a high percentage of nickel, so it is not naturally hypoallergenic. Frames made from monel can cause skin reactions in nickel-sensitive wearers unless the surface is properly plated and nick...

What is beta titanium and how is it different from titanium? Beta titanium is a titanium alloy that contains titanium plus elements such as vanadium, molybdenum, and aluminum. It is highly flexible and can return to its original shape after bending. Pure titanium is lighter and more rigid, while beta titanium offers spring-back memory that is ideal for thin frames, flexible hinges, and templ...

Titanium vs stainless steel eyeglass frames: which is better? Neither titanium nor stainless steel is universally better — the right choice depends on your price point, target market, and product positioning. Titanium is lighter, stronger, more corrosion-resistant, and hypoallergenic, making it ideal for premium and sensitive-skin markets. Stainless steel is stronger than most plastics, offe...

Acetate vs TR90: which is better for eyeglass frames? Neither acetate nor TR90 is universally better — the right choice depends on your market, price point, and product positioning. Acetate is denser, holds richer colors, and can be polished and repaired, making it ideal for fashion and premium lines. TR90 is lighter, more flexible, and impact-resistant, making it ideal for sport, kids, and ...

What is TR90? TR90 is a thermoplastic polyamide material developed by EMS in Switzerland for high-performance eyewear. It is known for being lightweight, flexible, and impact-resistant. TR90 frames can bend under pressure and return to their original shape, which makes them popular for sport, kids, and active lifestyle eyewear. For B2B buyers, TR90 offers a strong balance of durability, comf...

What is the difference between acetate and plastic frames? All acetate frames are plastic, but not all plastic frames are acetate. Acetate is a plant-based plastic cut from solid sheet, while standard plastic frames are injection-molded from petroleum-based resin. Acetate feels denser, holds richer colors, and can be polished and repaired. Injection plastic is lighter, cheaper, and faster to...

What are acetate frames made of? Acetate frames are made from cellulose acetate, a plant-based plastic produced by treating cellulose with acetic acid and acetic anhydride. The cellulose usually comes from cotton linters or wood pulp. The result is a strong, glossy, and color-rich material that can be polished, heated, and reshaped. High-quality acetate is often supplied as sheets from Italy...

What materials are used to make eyeglass frames? Eyeglass frames are made from two main material families: plastics and metals. Plastics include cellulose acetate, TR90, Ultem, and Optyl. Metals include titanium, beta titanium, stainless steel, and monel. Each material offers different weight, durability, flexibility, allergy risk, color range, and price. For B2B buyers, material choice driv...

What does an optical frame catalog include and how do I get one? An optical frame catalog is a B2B product list that shows available frame models, sizes, colors, materials, and packaging options. It usually comes as a PDF, an online page, or a printed book. Most manufacturers divide it into a stock catalog and a custom catalog. To get one, submit an inquiry with your business details and tar...

What are spectacle frames? Spectacle frames are the frames that hold prescription lenses, and the term is the standard British and international word for optical frames or eyeglass frames. In B2B supply, spectacle frames are usually sold as frames only, without lenses. They can be made from acetate, TR90, Ultem, titanium, stainless steel, and other materials. READSUN Optical manufactures cus...

What are the best eyeglass frame brands for wholesale buyers? The "best" eyeglass frame brands for wholesale buyers depend on your business model. If you sell licensed or designer brands, you source through official distributors. If you want your own brand, you work with a factory for private label, ODM, or OEM production. Most successful wholesalers use a mix: a few recognized brands to att...

Are there any eyeglass frames made in the USA? Yes, there are eyeglass frames made in the USA, but the number is small. American frame production is concentrated in niche workshops and specialty brands that focus on handmade acetate, premium metal, or small-batch custom work. Most frames sold in the US are imported from China, Italy, and other regions. The reason is cost: US labor, tooling, ...

How many eyeglass frame manufacturers are there? There are thousands of eyeglass frame manufacturers worldwide, ranging from small workshops to large contract factories. China alone has hundreds of factories concentrated in Wenzhou, Shenzhen, and Dongguan. Italy's Belluno district hosts a smaller but highly specialized cluster for premium acetate. India, Vietnam, and other regions are growin...

Who is the largest eyeglass frame manufacturer? There is no single "largest" eyeglass frame manufacturer. The industry is built on large contract manufacturers, brand-owning groups, and regional production clusters. Major groups such as EssilorLuxottica, Marchon, and Safilo control large brand portfolios and their own production. At the same time, China's Wenzhou, Shenzhen, and Dongguan clus...

What does 'frames only' mean and can I buy frames without lenses? Yes, you can buy frames without lenses. "Frames only" means the shipment contains the frame front and temples, but no lenses. This is the standard way optical frames are supplied in B2B wholesale. Lens fitting is done later by a lens lab, optical retailer, or distributor. READSUN Optical supplies frames only for wholesale, pri...

What are unisex optical frames? Unisex optical frames are eyeglass frames designed to fit and suit both men and women. They use neutral shapes, balanced proportions, and a mid-size range that works across genders. For B2B buyers, unisex optical frames are a smart way to reduce SKU count while covering two customer groups with one model. READSUN produces custom unisex optical frames for whole...

What is the difference between full rim, semi-rimless and rimless frames? Full rim frames surround the entire lens with frame material. Semi-rimless frames hold the lens partly with frame and partly with a nylon cord. Rimless frames mount the lens directly to the bridge and temples without a surrounding rim. Full rim is the most durable and common. Semi-rimless is lighter with a modern look....

What frame styles are trending for 2026? The strongest eyeglass frame styles for 2026 include retro square shapes, slim gold and silver metal frames, oversized acetate frames, transparent and crystal tones, and mixed-material designs. Demand is also rising for lightweight titanium styles, soft cat-eye shapes, and bold tortoiseshell patterns. These trends come from MIDO and SILMO exhibition r...