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  • 2.2.11-COTTON VALUE ADDITION-WAX CONTENT

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  • Wax content

    Chapter 2 - Cotton value addition - The impact of cotton fibre properties on textile 

     
     
    Levels of cotton wax are determined by both genetic and environmental conditions and are usually measured by solvent extraction. Cotton wax, which is mainly on the fibre surface and in the primary wall, has a beneficial effect on mechanical processing. The amount of wax per unit surface is fairly constant, and finer cottons therefore contain more wax per unit weight than do coarser cottons. Wax affects wetting behaviour and should be removed where good wetting is required, such as in towels. Such removal can beneficially affect yarn strength but adversely affect fabric crease recovery, flex abrasion and tear strength. Excessive wax can sometimes also cause problems with stickiness and roller lapping. In most cases the wax on the fibre makes it unnecessary to apply oils or lubricants to facilitate mechanical processing, but any wet treatment applied prior to processing can affect this negatively. Cotton wax enables cotton to be processed trouble-free on most systems.