What is cellulose acetate?
Cellulose acetate refers to a thermoplastic resin obtained by esterification with acetic acid as a solvent and acetic anhydride as an acetylating agent under the action o...
China
Relevant standards: mainly based on GB 10810.3-2006 “Glasses lenses and related glasses products Part 3: Transmission specifications and measurement methods” and GB/T 14214-2003 &...
Choose the right sunglasses
Uv protection: To ensure that sunglasses can effectively block ultraviolet light, the label is usually marked with UV400 and other signs, indicating that it can block mo...
Sunglasses are a popular accessory that not only protect the eyes from harmful UV rays but also add a touch of style to any outfit. Acetate frames have become increasingly popular in the world of e...
What is the difference between resin lens and pc lens, which is good?
Resin lens and PC lens as the two mainstream materials of modern eyeglass lenses, each has its own unique characteristics and a...
What precautions should be taken when choosing a frame? With the vigorous development of the eyewear industry, more and more materials are applied to the frame. After all, the frame is worn on the ...
