（1） Acetate fiber sheet frame
Acetate fiber sheet frame, also known as sheet frame, is made of wood pulp/cotton wool+cellulose acetate, which belongs to plant-based plastics. It is also known as CA sheet, acetate fiber sheet, and eyeglass sheet in the industry. Its production process is special, which is made by cutting, polishing, and grinding a whole thick plate instead of injection molding, resulting in better texture and durability.
The advantages of acetate fiber sheet frame are very prominent, which is also the reason for its high price and outstanding appearance: firstly, it has a high-quality texture, a warm luster, and a certain weight, which is much more advanced than TR and ordinary plastic frame; The second is that the color never falls off. The color is an integrated color of the board, not spray painted, and will not fade or oxidize no matter how long it is worn; Thirdly, it is not easily deformed, structurally stable, and can maintain its original shape for several years of normal wear; Fourthly, it is skin friendly and non allergic, non irritating to the skin, and can be worn with confidence by people with sensitive skin; The fifth is fashionable style, which is the first choice for retro and fashionable styles. Popular styles such as tortoiseshell, translucent, coarse frame, retro round frame, etc. are mostly made of sheet metal materials.
Its main disadvantages are: firstly, it is heavier than TR90 and pure titanium frame, especially for thick frame styles, which may cause a nasal pressure when worn for a long time; The second reason is that the material is relatively hard and has average toughness. It may break when dropped or broken forcefully; Thirdly, there is a fear of high temperatures, as exposure to sunlight or hot water inside the car can cause deformation.
Minimalist material comparison: Acetate fiber board frame looks good, with a high-end texture but slightly heavy, suitable for fashionable, retro, and beauty oriented people; TR nylon frame is lightweight, resilient, and drop resistant, suitable for children, sports enthusiasts, and people who are afraid of weight; Pure titanium/beta titanium frames are the lightest, most expensive, and most comfortable, suitable for business people and long-term wearers.

Suitable for people wearing acetate fiber sheet frame: those who like retro, coarse frame, tortoiseshell color, and transparent frame styles; People who want good texture, no fading, and timeless; People who commute daily, pay attention to dressing, and prioritize appearance.

（2） TR nylon frame
TR90 and TR nylon, which we usually refer to, are both ultra light, ultra tough, and drop resistant memory plastics. They are known for their comfort, durability, and non allergenicity, and are currently very popular materials for popular eyeglass frames.
The advantages of TR nylon frame are very suitable for daily needs: firstly, it is extremely light, with almost no foreign body sensation when worn, and does not press the nose or ears; Secondly, it is super tough and resistant to impact, making it difficult to break even when broken or dropped, and has strong durability; Thirdly, it is resistant to high temperatures and is not easily deformed even when placed in a car during summer; Fourthly, it is skin friendly and non allergic, suitable for wearing on sensitive skin and children; Fifth, it has high cost-effectiveness, diverse styles, and is easy to match with various outfits.
Its main disadvantage is that it has a plastic like texture and is not as high-end as acetate fiber sheet frames; Secondly, the surface is mostly painted, and long-term wear may result in slight discoloration.
Suitable for wearing TR nylon eyeglass frames: children, students; Sports, outdoor, and cycling enthusiasts; People with sensitive nose bridge, fear of weight and pressure; People who commute daily, pursue comfort, durability, and high cost-effectiveness.
One sentence comparison: If you want lightweight, drop resistant, and comfortable to wear, choose TR nylon; If you want texture, appearance, and retro style, choose acetate fiber board.