Cotton, being a natural fibre, contains more natural impurities on its primary and secondary walls. Analysis of cotton wax, in the past, has revealed a general composition as 25% fatty acids, 52% alcohols, 10% sterols, 7% hydrocarbons and 6% "inert matters". The main constituents of the wax include 1-triacontanol, montanol, beta sisterol and a mixture of high molecular weight esters. About 85% of carboxyl groups in the pectic substances of cotton are methylated and are in the form of insoluble calcium, magnesium and iron salts of polygalacturonic acid, which also constitutes to the non-absorbent characteristics of raw cotton.
Cotton, being a natural fibre, contains more natural impurities on its primary and secondary walls. Analysis of cotton wax, in the past, has revealed a general composition as 25% fatty acids, 52% alcohols, 10% sterols, 7% hydrocarbons and 6% "inert matters". The main constituents of the wax include 1-triacontanol, montanol, beta sisterol and a mixture of high molecular weight esters. About 85% of carboxyl groups in the pectic substances of cotton are methylated and are in the form of insoluble calcium, magnesium and iron salts of polygalacturonic acid, which also constitutes to the non-absorbent characteristics of raw cotton.
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