Selection of sunglasses frames

1. Cellulose propionate grease: abbreviated CP material, with appropriate elasticity and toughness; soluble in solvents to form a state, so the material should avoid contact with acetone, banana water and other organic solvents; CP material in the atmosphere is not easy to oxidize, decompose, aging, not easy to burn, its plasticity and fluidity is good, so processing and coloring methods are diverse, can be. Make rich and varied colors. Based on the stability of CP.

2. Polycarbonate: PC material, specific gravity 1.2, non-flammable, odorless non-toxic resin, in line with FDA and the United States Drug Administration regulations, its characteristics with PC lenses.

3. Epoxy resin: also known as EP plastic, good temperature resistance, lighter than ordinary plastic 30%, high strength, high hardness, good elasticity can be made into thin and light eyeglass frame. At the same time, it has special memory function, so it is also called memory plastic, often used to make high-grade mirror frame, mirror foot, etc.

4. Manganese-nickel alloy: It is an alloy with manganese and nickel as main alloying elements. Manganese-nickel alloy has better mechanical strength and corrosion resistance.

5. TR-90 Material (Swiss imported super-tough memory resin material): Super toughness: movement to prevent the frame deformation or even fracture, protect the face from injury. Memory function: special memory function, the anti deformation index is 620kg/cm2. Light weight: t 30%, which is lighter than the plate, can effectively reduce the weight of spectacles and make it more comfortable to wear. Impact resistance: effective resistance to external force impact is more than two parts of sheet metal.

6. Al-Mg alloy materials: light weight, environmental protection, durability of this material is now widely used in mobile phones, portable computers and other high-tech products.

7. Titanium Material: When the temperature exceeds 860 degrees, the molecular structure of titanium metal will change and form beta titanium. Beta titanium is more dense than titanium, so its elasticity is better than that of titanium, and its price is three times as high as that of titanium. Because its hardness is higher than that of titanium, it is more difficult and cumbersome to process than that of titanium.

Selection of sunglasses lenses

Color selection of polarizing sunglasses lenses