Dyeing industry: Till the midst of 19 th century all the dyes used for textile products were produced naturally, until the invention of

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In textile industry, dyes remove from solution using synthetic materials which is harmful for environment and expensive. In this research work acid treated saw dust(ATSD) used to remove of dyes from aqueous solution. It is environment friendly & cheap. This research work has been carried out using Acid dye,1:2 metal complex dye, Acid-reactive dye, Reactive dye. The objective of work was how many dye separately removes from solution. Acid & 1:2 metal complex dye removed from auxiliary free aqueous solution. In similar dye concentration(gm/l) less ATSD removes acid dye than 1:2 metal complex dye. By Beers-lambert law we explained the deviation of ATSD solution from standard solution of T% & Wavelength curve.

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A continuous method of dyeing polyester yarn has been developed in which yarn is forced into a moving plug within apparatus based on the Fibre-M texturing system. Dye is then applied in droplet form to the yarn plug. The method relies on the dispersion of low-molecular-weight disperse dyes in a solvent medium to provide a uniform application to the core of the plug. The demands of the textile industry require an extension of the method to a wider range of dye types in a water-based medium. This paper describes a feasibility study of an aerosol method of dye application to a yarn plug.