RCA—for thiner and lighter

Cellulose acetate plastic has a much higher specific gravity—up to 1.27! To otain a flexible enough glasses frame, we have to use more than 4mm thickness of sheet. Otherwise, the glasses frame is easy to deformation. As a consequence, the glasses frame is too heavy to daily wearing.

To reduce the weight, someone may reduce the plasticizer content to increase the flexural modulus and shore hardness. However, the glasses frame made from this way is too fragile. 

Pacetati developed RCA on the basis of an exclusive patent. We have made much of improvements on both raw material and recipe to balance all machanical properties. It has high tenacity but not fragile.

With RCA, you could even make 2mm thickness of sheet. This leads to a much lighter glasses frame. This makes RCA possible in optical frame.

Daily fashion,with RCA

Before the birth of RCA, the optical frame market is occupied by TR90- a polyamides material. It is light and flexible, however, it is not fashionable as CA material. The color and pattern is dull. With RCA, you could obtain dept pattern of optical frame.