Metal Frame
Metal Frame
Different types of plastic frame and its advantages
Plastic was the most revolutionary material in the 20th century, and soon became the major material in the eyewear industry. Plastic frame was gaining popularity due to its wide variety of colors, textures and styles. The easy molding of plastic makes it possible to produce any kind of complicated styles if plastic glasses frame.
There are many kinds of plastic materials that can be used to make plastic frame. The most common and inexpensive plastic frame is made of zyl, also called zylonite or cellulose acetate. Plastic glasses frame in zyl is pretty lightweight and can be easily adjusted. Currently very popular styles of plastic glasses frame is the laminated zyl frame mixed with a couple of layers of colors.
The second material is cellulose proprionate. Plastic frame in this nylon-based material is lightweight and easily molded for any styles. Special attention needs to pay to the heating when adjusting the plastic frame. Overheating this type of plastic frame may cause shrinkage and be damaged.
Kevlar is another material researched and developed by DuPot. Once used in the military bulletproof vest, Kevlar is impact-resistant and very strong. Plastic frame in Kevlar are mostly used in sports glasses.
Plastic glasses frame made of nylon started from 1940s. Nylon was developed because the early plastic glasses frame is crispy and easily breakable. Nylon plastic glasses frame is high in strength and light in weight, and is resistant to extreme high and cold temperature, therefore is also good for sports.
The optyle is a special plastic material, which is lighter and stronger than zyl. Plastic frame made of optyle is similar to memory metal frame which can be restored to the molded shape, Adjustments to this type of plastic frame is difficult and care should be taken to overheat which may ruin the frame.
this article is come from:http://vision.firmoo.com/eyeglasses/plastic-frame-and-its-advantages.html
 |
 Sundog Dart Sunglasses 41430 Metallic Granite Gray Frames Smoke Lenses  US $34.99
|
 |
Flexible Flyer Ground Anchor Kit for Metal Frame Swing Sets List Price: $39.99 Sale Price: $14.88  |
|
This Ground Anchor Kit allows you to safely anchor your metal frame play set into the ground--without concrete for greater stability and durability. Compatible with any four-legged Flexible Flyer steel swing set and many others, the anchors both prevent your play set from tipping when kids swing and prevent play sets from being shifted during strong winds... |
 |
Aviator Sunglasses Mirror Lens Silver Metal Frame 01 Sale Price: $1.02 |
|
Aviator Sunglasses Mirror Lens Silver Metal Frame |
 |
UFC Mixed Martial Arts UFC Branded License Plate Frame, Metal List Price: $23.00 Sale Price: $11.25 |
|
Metal License Plate Frame is decorated with two full color inserts. The cast zinc frame is chrome plated .024 gauge aluminum embossed with two mounting holes on the top of the frame. Standard 6"x12" size... |
 |
HOTLOVE Premium Quality Big Lens Sunglasses UV400 Lens Technology - Celebrity Sunglasses M9207 Rose Gold Metal Frame Gradient Lens Fashion Sunglasses - Trendy Unisex Styles Sale Price: $8.99 Used From: $7.00 |
|
Our sunglasses will take good care of your vision protecting your eyes from harmful sun rays. These sunglasses feature UV400 Lens Technology, absorbing over 99% of harmful UVA and UVB spectrums. Market price $29... |
 |
NHL 2011 Boston Bruins Stanley Cup Champion Metal License Plate Frame List Price: $19.99 Sale Price: $10.26 |
|
Metal License Plate Frame is decorated with two full color inserts. The cast zinc frame is chrome plated .024 gauge aluminum embossed with two mounting holes on the top of the frame. Standard 6"x12" size... |
 |
Crosman C41 Metal Frame .177 Air Pistol with Ambidextrous Checkered Grip List Price: $119.99 Sale Price: $49.99 Used From: $50.54 |
|
The Crosman C41 air pistol features alloy construction that gives it a realistic weight and feel. A medium framed pistol, the gun has ambidextrous checkered grips and is modeled after the famous German pistols of WWII... |
