00Classification of direct Dye with the basis of Applications 1.Class A ( Self Leveling ): Dye which migrate well and therefore have high leveling power. 2.Class B ( Salt controllable ): Dyes of poor leveling power where exhaustion must be brought by the controlled salt addition. 3.Class C ( Temperature Controlled ): Dyes which are …
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00The application of acid dye on protein fibres results in an ionic or Soult lime between the dye molecule & the fibre polymer. The point of the fibre polymer at which the dye is attached is termed the dye site. In wool the dye sites are the many amino groups of fibre under dyeing conditions. …
Continue reading Dyeing of wool with acid dye00Acid dyes are Na- salt of sulphonic acid. But there are a few containing carboxyl groups. Acid dyes are applied in acid medium. That’s why these dyes are called Acid Dye. Acid dye have a direct affinity towards protein fiber and the main class are used in Wool Dyeing. Polyamide fibers have an affinity for …
Continue reading Acid Dye and its properties and Classification00Dyeing :Dyeing is a distribution process in which the dye or pigment is distributed at least two phases or phase systems i.e; the dye/pigment bath or solution and the textile material. Dyes / pigments are generally coloring materials for dyeing operation. There are various types of dyes and pigments for the coloration of Textiles. General …
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