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The Dyeing of Cotton Fabrics

A Practical Handbook for the Dyer and Student

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Author: Franklin Beech
Published: 1901
Language: English
Wordcount: 106,755 / 346 pg
Flesch-Kincaid Reading Ease: 56.3
LoC Category: TT
Downloads: 1,926
Added to site: 2007.04.28
mnybks.net#: 16708
Origin: gutenberg.org
Genre: Instructional
Excerpt

a rod and the cross section in Fig. 2A has no central canal. The action which takes place is as follows: The cellulose enters into a combination with the alkali and there is formed a sodium cellulose, which has the formula C{6}H{10}O{5}2NaOH. This alkali cellulose, however, is not a stable body; by washing with water the alkali is removed, and hydrated cellulose is obtained, which has the formula C{6}H{10}O{5}H{2}O. Water removes the whole of the alkali, but alcohol only removes one half. It has been observed that during the process of washing with water the fibre shrinks very much. This shrinkage is more particularly to be observed in the case of cotton. As John Mercer was the first to point out the action of the alkaline solutions on cotton, the process has become known as "mercerisation".

Solutions of caustic soda of 1.000 or 20° Tw. in strength have very little mercerising action, and it is only by prolonged treatment that mercerisation can be effected. It is interesting to observe that the add

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