There are many types of glasses, classified by material: including plastic glasses, sheet glasses, metal glasses, titanium glasses and horn glasses. So, what kind of materials are the frames divided into? Here is a detailed introduction, I hope it can help you.

Frame Material 1: Plastic

Plastic eyeglass frames are mainly made of plastic or similar polymer materials. According to its temperature characteristics, it can be roughly divided into two categories: thermoplastic resins and thermosetting resins. Thermoplastic resins can be heated and reformed multiple times. Spectacle frames made from such materials are easy to adjust and reshape. Thermosetting resins are difficult to reshape after molding, so they are often mixed with thermoplastics. They all need to make a mold first, then heat the resin pellets through an injection molding machine, melt and use the mold for injection molding. The plastic frame has a simple manufacturing process and low production cost.

Frame material 2: Cellulose acetate, also called sheet

Cellulose acetate is made by treating cellulose with acetic acid and acetic anhydride using a catalyst (sulfuric acid). Cellulose acetate contains 62.5% acetic acid and is soluble in acid reactions; place it in water, wash and dry. The composition for molding cellulose acetate is made of acetate flakes, plasticizers (10-70 parts), pigments and dyes by mixing in a drum mixer, extruder or internal mixer at 175°C and 270°C Mix these ingredients at a temperature between °.

Acetate glasses are stylish, colorful and easier to match with clothing (especially acetate sunglasses). In recent years, acetate glasses have become one of the popular glasses.

Frame Material 3: Metal

Metal glasses are one of the most popular glasses at the moment. Diverse styles, rich colors, comfortable to wear, deeply loved by consumers. So, what are the commonly used materials for metal glasses?

Monel: This popular copper-nickel alloy is less expensive than other metals, but depends on the quality of the plating used - it can sometimes discolor or cause skin reactions after prolonged use.

Stainless Steel: Stainless steel is one of the commonly used materials for making metal glasses. Stainless steel eyeglass frames are lightweight, low in toxicity, and high in strength; many stainless steel eyeglass frames are also nickel-free and therefore have low guo min.

Titanium: Extremely elastic and corrosion resistant, titanium also has low guo min and is 40% lighter than other metals. Titanium is available in a variety of shades and is an ideal material for titanium glasses.

Beta Titanium: Titanium is mixed with small amounts of aluminum and vanadium, this alloy is more flexible than pure titanium and can easily adjust your glasses to fit your face shape.

Memory Metal: Frames made of memory metal made from a titanium alloy that is approximately 50% nickel and 50% titanium. These frames are highly bendable and return to their original shape even after twisting and turning. Memory metal frames are perfect for kids or those who take off their glasses a lot.

Aluminium: Aluminium is lightweight and very resistant to corrosion, has a different look and is often used in high-end and unique eyewear.

Frame Material 4: Buffalo Horn

Cow horn is a light, comfortable and beautiful frame material, and although there are many horns of Asian buffalo, few manufacturers have the technology to convert the horn into glasses. It takes the most skilled workers in a good eyeglass frame maker to carve and polish buffalo horn material in a way that suits the horn.

Glasses Material 5: Wood or Bamboo

Wood and bamboo are pure natural materials, and the manufacturing process is more complicated than other glasses frames. Natural wood and bamboo have different tactility and beautiful natural texture. Natural materials will have different textures after long-term use. The disadvantage is that the material flexibility is poor, it is not easy to wear, and the comfort is not good enough. To prevent sweat from corroding to material deformation, pretreatment has affected the texture. Also, the temples cannot be adjusted and the fit is poor.

A pair of glasses is often not made of the same material, but is often a combination of different materials. The most common pair of glasses is a combination of acetate and metal. Each material has its advantages and disadvantages. When you're shopping for a pair of glasses, it's important to find the right glasses for you. You want to be comfortable, or you want the right light, or you want rich colors, or you want to match different clothes, you need to wear different sunglasses.