Abstract

The use of wool in admixture with other natural fibres dates from early times. With the introduction of synthetic fibres over the past 70 years, blends of wool with polyester, nylon and acrylic fibres have assumed major importance. The combination of two or more different fibres into a blend makes it possible to produce textile articles with properties that cannot be obtained by the use of a single fibre. This chapter deals with the dyeing of blends of wool with cotton, silk, polyamide (nylon), polyester and polyacrylonitrile (acrylic) fibres. For an understanding of blend dyeing, it is essential to appreciate the different properties of both the wool and the non-wool components, and how these properties affect dyeing behaviour. The chapter also discusses amination of cellulosic fibres in detail.

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