celluloid is made of plastic.

celluloid refers to the old trademark name used for plastic, which is the earliest commercial synthetic plastic. It is colorless and transparent, and can be used to make film films and imitate tortoiseshell and ivory. In 1876, the inventor of celluloid sold billiards balls and so-called ivory-like products on the market, which were made of cellulose nitrate and used camphor to increase plasticity.

Celluloid is often thinner and lighter than bakelite. When heated to a higher temperature, it will become brittle and crack. Even some celluloid sheets are flammable. Although they are more brittle than bakelite, they can still be bent or twisted. Under hot water, most celluloid has a taste like vinegar or old camphor. Celluloid jewelry may be damaged by moisture, extreme temperature or chemicals. Celluloid stored in a closed environment for a long time will also be very dull or even cracked.

uses of celluloid

celluloid has a variety of uses, far beyond the scope of billiard tables. It can be molded at the boiling temperature of water; It can be cut, drilled or sawed at low temperature; It can be a hard lump, or it can be made into a soft sheet (it can be used to make shirt collars, children's toys, etc.). Thinner and tougher film can be used as the base of colloidal silver compounds, so it becomes the first practical photographic negative.

Its most common uses are table tennis, ornaments, headdresses, musical instrument decorations and plucking. Other uses are in chemical industry, aerospace, machinery, printing and dyeing, building materials, decoration, packaging, cosmetics, gift packaging and other fields.