- Key People:
- John Wesley Hyatt
- Related Topics:
- thermoplastic
celluloid
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What is celluloid?
Celluloid, the first synthetic plastic, was created from a homogenous colloidal dispersion of nitrocellulose and camphor in the 1860s and 1870s. Alexander Parkes, an English chemist, obtained the first of several patents for a plastic material he called Parkesine in 1856. Daniel Spill, Parkesās business partner, patented Xylonite, a more-stable improvement upon Parkesine, in 1867.
In the United States, John Wesley Hyatt created a more commercially successful plastic by mixing solid nitrocellulose, camphor, and alcohol under pressure. In 1870, Hyatt and his brother Isaiah obtained the first of numerous patents on this material, registering it as Celluloid in 1873.
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How was celluloid first made?
Celluloid, the first synthetic plastic, was developed in the 1860s and 1870s. English chemist Alexander Parkes created Parkesine by dissolving nitrocellulose in solvents and adding plasticizers. Daniel Spill, Parkesās business partner, patented Xylonite, a more stable version of Parkesine. In the United States, John Wesley Hyatt made a commercially successful plastic by mixing solid nitrocellulose, camphor, and alcohol under pressure. In 1887, Hannibal Goodwin conceived using celluloid as a base for photographic emulsions, and in 1889, George Eastman began manufacturing celluloid roll film.
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What materials are used to produce celluloid?
Celluloid, the first synthetic plastic, is made from a homogeneous colloidal dispersion of nitrocellulose and camphor. Nitrocellulose is a highly flammable mixture of nitric esters of cellulose. Camphor is an organic compound with a penetrating aroma, used as a plasticizer for cellulose nitrate. To create celluloid, solid nitrocellulose, camphor, and alcohol are mixed under pressure and kneaded into a dough-like mass. Coloring agents can be added as dyes for transparent colors or as pigments for opaque colors. The colored mass is then rolled, sheeted, and pressed into blocks for further processing.
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Why was celluloid important in the history of plastics?
Celluloid stands as a pivotal material in the history of plastics because it was the first synthetic plastic celluloid. Developed in the 1860s and 1870s, this innovative material, made from nitrocellulose and camphor, paved the way for modern plastics.
Celluloid's properties, such as flexibility, toughness, and moldability, allowed for mass production of goods, and it became a substitute for costly natural materials like ivory. Moreover, celluloid was adapted into a clear, flexible film, revolutionizing still photography and motion pictures. Although later superseded by more versatile and less flammable plastics, celluloid's legacy remains significant as a pioneering plastic material.
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What are some common products that were made using celluloid?
Celluloid, the first synthetic plastic, was used to make various mass-produced items due to its flexibility and low production cost.
Common products made from celluloid:
* Toiletry articles
* Novelties
* Photographic film
* Combs
* Brush handles
* Piano keys
* Eyeglass frames
* Detachable collars and cuffs for menās clothing
* Side windows for motorcars
* Table-tennis ballsCelluloid served as an affordable substitute for ivory and tortoiseshell. Though popular, its flammability and tendency to discolor led to its replacement by cellulose acetate and vinyl polymers.
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What are the disadvantages or dangers of using celluloid?
Celluloid, the first synthetic plastic, has disadvantages including flammability and a tendency to discolor and crack over time. It softens under heat and is unsuitable for efficient fabrication processes like injection molding. Because of these drawbacks, more versatile and less flammable materials replaced celluloid in the 1920s and 30s. These included cellulose acetate, Bakelite, and vinyl polymers. By the late 20th century, its primary use was in table tennis balls.
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celluloid, the first synthetic plastic material, developed in the 1860s and 1870s from a homogeneous colloidal dispersion of nitrocellulose and camphor. A tough, flexible, and moldable material that is resistant to water, oils, and dilute acids and capable of low-cost production in a variety of colours, celluloid was made into toiletry articles, novelties, photographic film, and many other mass-produced goods. Its popularity began to wane only toward the middle of the 20th century, following the introduction of plastics based on entirely synthetic polymers.
Some historians trace the invention of celluloid to English chemist Alexander Parkes, who in 1856 was granted the first of several patents on a plastic material that he called Parkesine. Parkesine plastics were made by dissolving nitrocellulose (a flammable nitric ester of cotton or wood cellulose) in solvents such as alcohol or wood naphtha and mixing in plasticizers such as vegetable oil or camphor (a waxy substance originally derived from the oils of the Asian camphor tree, Cinnamonum camphora). In 1867 Parkesās business partner, Daniel Spill, patented Xylonite, a more-stable improvement upon Parkesine. Spill went on to found the Xylonite Company (later the British Xylonite Company Ltd.), which produced molded objects such as chess pieces from his material.
In the United States, meanwhile, inventor and industrialist John Wesley Hyatt produced a plastic that was more commercially successful by mixing solid nitrocellulose, camphor, and alcohol under pressure. The solid solution was kneaded into a doughlike mass to which colouring agents could be added either in the form of dyes for transparent colours or as pigments for opaque colours. The coloured mass was rolled, sheeted, and then pressed into blocks. After seasoning, the blocks were sliced; at this point they could be further fabricated, or the sheeting and pressing process could be repeated for various mottled and variegated effects. The plastic, which softened at the temperature of boiling water, could be heated and then pressed into innumerable shapes, and at room temperature it could be sawed, drilled, turned, planed, buffed, and polished. In 1870 Hyatt and his brother Isaiah acquired the first of many patents on this material, registering it under the trade name Celluloid in 1873. The Hyattsā Celluloid Manufacturing Company produced celluloid for fabrication into a multitude of products, including combs, brush handles, piano keys, and eyeglass frames. In all these applications celluloid was marketed as an affordable and practical substitute for natural materials such as ivory, tortoiseshell, and horn. Beginning in the 1880s celluloid acquired one of its most prominent uses as a substitute for linen in detachable collars and cuffs for menās clothing. Over the years a number of competing plastics were introduced under such fanciful names as Coraline, Ivoride, and Pyralin, and celluloid became a generic term.
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In 1882 John H. Stevens, a chemist at the Celluloid Manufacturing Company, discovered that amyl acetate was a suitable solvent for diluting celluloid. This allowed the material to be made into a clear, flexible film, which other researchers such as Henry Reichenbach of the Eastman Company (later Eastman Kodak Company) further processed into film for still photography and later for motion pictures. Despite its flammability and tendency to discolour and crack with age, celluloid was virtually unchallenged as the medium for motion pictures until the 1930s, when it began to be replaced by cellulose-acetate safety film.
Other disadvantages of celluloid were its tendency to soften under heat and its unsuitability for new, efficient fabrication processes such as injection molding. In the 1920s and 1930s celluloid began to be replaced in most of its applications by more versatile materials such as cellulose acetate, Bakelite, and the new vinyl polymers. By the end of the 20th century, its only unique application of note was in table-tennis balls. Early celluloid objects have become collectorās items and museum artifacts, valued as specimens of an artificial plastic based on naturally occurring raw materials.