Viscose: Difference between revisions
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'''Viscose''' is a viscous organic liquid used to make [[rayon]] and [[cellophane]]. [[Cellulose]] from [[wood]] or [[cotton]] fibres is treated with [[sodium hydroxide]], then mixed with [[carbon disulfide]] to form cellulose xanthate, which is dissolved in more sodium hydroxide. The resulting viscose is extruded through a slit to make [[cellophane]], or through a spinneret to make viscose [[rayon]] (sometimes simply called '''viscose'''). |
'''Viscose''' is a viscous organic liquid used to make [[rayon]] and [[cellophane]]. [[Cellulose]] from [[wood]] or [[cotton]] fibres is treated with [[sodium hydroxide]], then mixed with [[carbon disulfide]] to form cellulose xanthate, which is dissolved in more sodium hydroxide. The resulting viscose is extruded through a slit to make [[cellophane]], or through a spinneret to make viscose [[rayon]] (sometimes simply called '''viscose'''). |
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The process for manufacturing viscose was discovered by three British |
The process for manufacturing viscose was discovered by three British scientists, Charles Cross, Edward Bevan and Clayton Beadle, in [[1891]]. Viscose is becoming less common because of the polluting effects of carbon disulfide and other by-products of the process. |
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Revision as of 16:50, 10 November 2005
Viscose is a viscous organic liquid used to make rayon and cellophane. Cellulose from wood or cotton fibres is treated with sodium hydroxide, then mixed with carbon disulfide to form cellulose xanthate, which is dissolved in more sodium hydroxide. The resulting viscose is extruded through a slit to make cellophane, or through a spinneret to make viscose rayon (sometimes simply called viscose).
The process for manufacturing viscose was discovered by three British scientists, Charles Cross, Edward Bevan and Clayton Beadle, in 1891. Viscose is becoming less common because of the polluting effects of carbon disulfide and other by-products of the process.