What is TR90 glasses frame, which is better sunglasses frame PC or TR90

TR90 glasses frame surface lubrication, density, put in salt water will float, lighter than other plastic glasses frames, about half of the weight of the plate frame, is 85% of the nylon material, can reduce the nose bridge, ear burden, suitable for teenagers. It is very wear-resistant, chemical-resistant, solvent-resistant, weather-resistant, non-flammable, and resistant to high temperatures. Moreover, it is a memory polymer material, with an anti-deformation index of 620kg cm2, which is not easy to deform.

Because the spectacle frame made of TR90 material is elastic, tough, not easy to break, strong and not broken, it has sports safety. And it's very impact-resistant: more than 2 times that of nylon material, ISO180 IC:

125kg m2 elastic to effectively prevent eye damage caused by impact during sports. No chemical residue release and meets European requirements for food-grade materials.

The material of TR90 is much more expensive than other PC, CP and other glasses frame materials, and the production process is also relatively strict, so the ** of TR90 glasses frame is several times more expensive than others.

TR90 is a kind of polymer material with memory, which is currently the most popular ultra-light frame material in the world, with super toughness, collision resistance and wear resistance, low friction coefficient and other characteristics, which can effectively prevent damage to the eyes and face caused by frame fracture and friction during sports. Because of its specific molecular structure, good chemical resistance, it is not easy to deform in a high-temperature environment, and can withstand a high temperature of 350 degrees in a short time, and is not easy to melt and burn.

If you sweat a lot, it is best not to use TR90, which is easy to peel.

TR90 is a material.

Grilamid TR (clear nylon).

Super tough (TR90).

Typical uses: widely used in the field of optics, sunglasses frames, frames, lenses, good chemical resistance, low internal stress, good toughness.

tr90 good. Sunglasses block uncomfortable glare while protecting the eyes from UV rays. All of this is possible thanks to metal powder filters, which "select" light when it hits it.

Tinted glasses selectively absorb some of the wavelengths that make up the sun's rays because they use very fine metal powders (iron, copper, nickel, etc.).

In fact, when light hits the lens, it is reduced due to the so-called "destructive interference" process. That is, when certain wavelengths of light (in this case, ultraviolet A, ultraviolet B, and sometimes infrared) pass through the lens, they cancel each other out on the inside of the lens, i.e., in the direction of the eye.

The overlapping of light waves is not accidental: the crest of a wave and the trough of the wave close to it cancel each other out. The phenomenon of destructive interference depends on the refractive index of the lens (i.e., the degree to which light deviates as it passes through different substances from the air) and also on the thickness of the lens.

In general, the thickness of a lens does not change much, while the refractive index of a lens varies depending on the chemical composition. And the sunglasses should not be in direct contact with the sun.

It depends on the situation, PC is relatively light, TR90 is actually relatively light, there is not much difference, theoretically the first one is lighter, but it is not wear-resistant, and the second is more wear-resistant than the first.

I can't think that the second one is definitely better, because the second one is even more so, and if I had to choose, I would definitely choose the second one.

The difference between the two is not much different, both belong to resins, and they are relatively light.

It's just a matter of personal preference. TR90 is recommended.

Titanium is generally used in the production of high-grade frames, with strong corrosion resistance, high hardness, not easy to deform, ** not easy to be allergic to it, good texture, and relatively high price. TR90 has large elasticity, strong toughness, impact resistance, sports safety but difficult to color, generally painted on the outside, the price is relatively cheap, and it is more suitable for students to wear.

TR90 eyeglass frame is a fibrous material eyeglasses frame with memory ability, no chemical residue is released, in line with European regulations for food-grade raw materials, is the most fashionable lightweight eyeglass frame in the world. The TR90 frames are ultra-malleable.

Collision resistance, wear resistance, friction resistance and other characteristics, can reasonably avoid fitness exercise.

Damage to the eyes and face caused by cracking and abrasion of the eyeglass frame. Because of its specificity.

The molecular formula has good resistance in the natural environment at high temperatures.

It is not easy to deform, can withstand high temperature of 350 degrees in a short time, and is not easy to melt and ignite. And the surface layer of the TR90 eye frame is moistened, and the relative density is relative.

In the salt water, it will be suspended, which is lighter than other plastic glasses frames, about less than plates.

Half of the net weight of the frame is 85% of the polyester raw material, which can reduce the pressure on the nose bridge and the inside of the ear, which is suitable for teenagers and children.

Pure titanium frames.

It is the lightest of the glasses material, and you can know whether it is real or fake by almost weighing it by hand. There are also pure titanium glasses frames with very good hardness, not easy to deform, corrosion-resistant, and will not rust.

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Spectacle frame plate frame, that is, plate glasses frame, the difference between plate glasses frame and TR90 is as follows:

First, the materials are different.

Plate glasses frames: The material of plate glasses frames is a high-tech plastic memory board, composed of acetate, propionate fiber, etc.

TR90: The material of TR90 is a kind of polymer material with memory.

Second, the process is different.

Plate glasses frame: The process of plate glasses frame includes material assembling process, engraving process, inlay process, etc.

TR90: The process of TR90 is mainly injection molding.

Third, the characteristics are different.

Plate glasses frame: Plate glasses frame has the characteristics of high hardness, good gloss, light and beautiful style.

TR90: TR90 has the characteristics of super toughness, crash resistance and wear resistance, and low friction coefficient.

Encyclopedia - TR90 glasses.

TR90 material is light, not easy to deform, has the best effect, and is not very easy to adjust, when choosing the frame, you have to choose the right one, after a long time, sweat will wear a layer of pattern film on the temples, resulting in the temples are ugly.

Pure titanium is good, and now many models are also designed to be lighter and durable, and the color will not fall off, but will gradually dim with the increase of the number of years of use.

Personally, I like metal materials, so I think pure titanium is better. But TR90 material is currently more popular.

TR90 is the most lethal because it is easy to skin the legs.

Pure titanium, of course.