Spectacle frames: For Spectacle frames, they were cut out of sheets of cellulose acetate. As the material has been superseded (replaced) by injection moulding with more modern thermoplastics, some up-market spectacles are still made in this way. This is most often the case when colour blends/effect cannot be produced by injection moulding.
Fabrics: The cellulose acetate fibers are dry spun from a cellulose acetate spinning solution containing cellulose acetate and acetone with other optional additives such as titanium dioxide.
Glossary:
Injection molding-a manufacturing technique for making parts from thermoplastic material in production.
Additive-a substance that is added to improve or alter the general quality of the substance that it is being added to.
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