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cellophane
cellophane thin, transparent sheet or tube of regenerated cellulose . Cellophane is used in packaging and as a membrane for dialysis . It is sometimes dyed and can be moisture-proofed by a thin coating of pyroxylin . There are several steps in the preparation of cellophane from raw cellulose. The cellulose is first treated with an alkali, e.g., sodium hydroxide, and mixed with carbon disulfide to form viscose (see viscose process ). The viscose is aged for several days and then forced through a straight or circular slit into a dilute acid solution. The dissolved cellulose precipitates, and this regenerated cellulose has a lower molecular weight and a less orderly structure than the cellulose from which it is formed. |
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"cellophane." The Columbia Encyclopedia, 6th ed.. 2008. Encyclopedia.com. 12 Feb. 2012 <http://www.encyclopedia.com>. "cellophane." The Columbia Encyclopedia, 6th ed.. 2008. Encyclopedia.com. (February 12, 2012). http://www.encyclopedia.com/doc/1E1-cellopha.html "cellophane." The Columbia Encyclopedia, 6th ed.. 2008. Retrieved February 12, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-cellopha.html |
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cellophane
cellophane Flexible, transparent film made of regenerated cellulose and used mostly as a wrapping material. It is made by dissolving wood pulp or other plant material in an alkali, to which carbon disulphide is added to form viscose. This is forced through a narrow slit into a dilute acid where it precipitates (separates as solid particles) as a film of cellulose. It is then dried and waterproofed.
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"cellophane." World Encyclopedia. 2005. Encyclopedia.com. 12 Feb. 2012 <http://www.encyclopedia.com>. "cellophane." World Encyclopedia. 2005. Encyclopedia.com. (February 12, 2012). http://www.encyclopedia.com/doc/1O142-cellophane.html "cellophane." World Encyclopedia. 2005. Retrieved February 12, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O142-cellophane.html |
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Cellophane
Cellophane Trade name for the first of the transparent, non‐porous films, made from wood pulp (cellulose), patented in 1908 by the Swiss chemist Jacques‐Edwin Brandenburger; waterproof cellophane for food wrapping was developed by Du Pont in 1926. Still widely used for wrapping foods and other commodities.
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DAVID A. BENDER. "Cellophane." A Dictionary of Food and Nutrition. 2005. Encyclopedia.com. 12 Feb. 2012 <http://www.encyclopedia.com>. DAVID A. BENDER. "Cellophane." A Dictionary of Food and Nutrition. 2005. Encyclopedia.com. (February 12, 2012). http://www.encyclopedia.com/doc/1O39-Cellophane.html DAVID A. BENDER. "Cellophane." A Dictionary of Food and Nutrition. 2005. Retrieved February 12, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O39-Cellophane.html |
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cellophane
cel·lo·phane / ˈseləˌfān/ • n. a thin transparent wrapping material made from viscose. |
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"cellophane." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 12 Feb. 2012 <http://www.encyclopedia.com>. "cellophane." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (February 12, 2012). http://www.encyclopedia.com/doc/1O999-cellophane.html "cellophane." The Oxford Pocket Dictionary of Current English. 2009. Retrieved February 12, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-cellophane.html |
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Cellophane
Cellophane
•abstain, appertain, arcane, arraign, ascertain, attain, Bahrain, bane, blain, brain, Braine, Cain, Caine, campaign, cane, chain, champagne, champaign, Champlain, Charmaine, chicane, chow mein, cocaine, Coleraine, Coltrane, complain, constrain, contain, crane, Dane, deign, demesne, demi-mondaine, detain, disdain, domain, domaine, drain, Duane, Dwane, Elaine, entertain, entrain, explain, fain, fane, feign, gain, Germaine, germane, grain, humane, Hussein, inane, Jain, Jane, Jermaine, Kane, La Fontaine, lain, lane, legerdemain, Lorraine, main, Maine, maintain, mane, mise en scène, Montaigne, moraine, mundane, obtain, ordain, pain, Paine, pane, pertain, plain, plane, Port-of-Spain, profane, rain, Raine, refrain, reign, rein, retain, romaine, sane, Seine, Shane, Sinn Fein, skein, slain, Spain, Spillane, sprain, stain, strain, sustain, swain, terrain, thane, train, twain, Ujjain, Ukraine, underlain, urbane, vain, vane, vein, Verlaine, vicereine, wain, wane, Wayne
•watch chain • mondaine • Haldane
•ultramundane • Cellophane
•novocaine • sugar cane • marocain
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"Cellophane." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. 12 Feb. 2012 <http://www.encyclopedia.com>. "Cellophane." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. (February 12, 2012). http://www.encyclopedia.com/doc/1O233-Cellophane.html "Cellophane." Oxford Dictionary of Rhymes. 2007. Retrieved February 12, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O233-Cellophane.html |
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