Compared with plastic frame eyeglasses, metal frame ones have a much longer history, that’s to say, metal is the earliest choice of eyeglasses material.
During the early days, metal frames are made from Monel which is a mixture of nickel and copper. It is the most widely used metal material in the manufacture of metal frame eyeglasses and has features of good malleability and corrosion-resistance. However, anyone who is allergic to nickel may not be able to wear this kind of metal frame eyeglasses.
With the development of industrial technology, more metal materials are suitable for metal frames making, such as titanium, stainless steel, and Aluminum and so on.
Titanium is a silver-gray metal which is light, durable, strong, and corrosion-resistant. The most important factor is of its hypoallergenic. In general, Titanium metal frame is made from an alloy which means it usually mixed with some nickel or copper, but not 100 percent titanium. Though titanium metal frames have so plenty of advantages, they are extremely difficult to color. That’s why this type of metal frames remains the natural metallic color. Still, lots of people pursue the natural color as a perfect choice for fashion by choosing titanium metal frames.
Stainless steel is another alternative of titanium which is an alloy of steel and chromium, or other metal elements. The qualities of stainless steel include light weight, low toxicity, easy molding and strength. Most of the stainless steel metal frames are nickel-free thus protecting the skin. Meanwhile, stainless steel is easily available and reasonably priced. It is definitely an excellent choice of metal frames.
Aluminum, as we know before, is very soft and weak. So it always combines small amounts of silicone or iron which makes frame hard and strong. In fact, aluminum is used primarily by high-end eyewear designers because of the unique look it creates.
Metal frame eyeglasses used to be ugly and boring. Nowadays, various kinds of metal types and design styles make the eyewear fashionable and fantastic. Metal frame eyeglasses used to be skin-sensitive for some people. Nowadays, there are better protective coating techniques to prevent the allergen condition.
With all of these happen, people can no doubt enjoy the metal frame eyewear now and future.
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