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3. Textile Industry and Humidification
So as not to lose the thread!
Yarns and semi-finished goods must maintain the correct intrinsic humidity, in balance with the relative humidity of the ambient air, right through to the finished fabric, or in some cases the finished product. If the relative humidity is inadequate the materials will lose elasticity and tear resistance. For example, a study has shown that increasing the relative air humidity from 60% to 70% increases the elasticity of cotton products by over 15% (source: Institute of Textile Technology, USA). Leather, too, requires an adequate air humidity in order to maintain its natural properties, enabling it to be made up into high-quality products.
A constant, optimum air humidity prevents:
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Another factor impairing the production process if the relative air humidity is too low is the problem of static. Synthetic fibres in particular, such as Perlon and Nylon, become electrostatically charged in excessively dry environments. The lack of electrical conductivity means like electrical charges arising from friction during processing are unable to discharge. These like charged fibres repel each other and make it difficult to machine the material into the smooth, firm yarn essential to the manufacture of homogeneous fabrics. Friction on machine components, such as rollers and lugs, also causes production-impairing static in natural fibres such as wool, linen and jute.
