AZOIC DYES PDF

Azoic dye definition is – any of a group of water-insoluble azo dyes formed by coupling of the components on the fiber —called also ice color, ingrain dye. The dyes containing azo groups – N = N – are called Azoic Dye. These are not ready made dyes but are produced by reaction of two. Structure, Chemical Name, CAS, MF. 4-Chloronitroaniline · , C6H5ClN2O2. 3-Chloromethylaniline · , C7H8ClN. 2-Amino

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This is a unique technique.

Azoic Dye ~ Define Textile

Difference between Melt, Dry and Wet spinning. The name AZO has been derived from the word azote and it meant nitrogen in the ancient time in French.

After printing the printed fabric is dried at for minute in a dryer. Brightness of azoic dye is good. It is a platform to express your knowledge throughout the world. Properties and Advantages of Azoic Dye.

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Azoic Dye | Definition of Azoic Dye by Merriam-Webster

Classification of Nepthol Dyes. It has wide color range.

Now the bath is ready for steeping textile azioc for a few minutes In this bath, any naptholated goods, excepting the napthol AS — G will look yellow. Because of high degree of brightness, ease of application and excellent fastness properties except rubbing fastness which can be improved by using certain auxiliaries azoic combinations naphthol and bases are widely used in printing on cellulose fiber fabrics.

The quantity of hydro — sulphide is increased in the case of yellow combination. Azic dye is that which has insoluble azo group.

Formation of Azoic Dyes. This color contains insoluble azo dues in its chemical structure. Advantages of Azoic Dye: Finally salt and water are added into the bath. In this way, dyeing procedure is completed. It is produced by reacting two components named coupling method and diazo component.

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An overview of Azo dyes

Brightness of shade is also admirable. Start your free trial today and get unlimited access to America’s largest dictionary, with:. Azoic Dyes are also called as Azoic or Nepthol Dyes. All azolc chemicals according to the recipe are mixed with water to make a suitable solution. Trade name of Azoic color. Addition of salt increases substantively. It applied in flu How to use a word that literally drives some people nuts.

Azoic dyes

Developing Bath 2nd bath. In the 2nd bath, Base or Salt is used for dyeing. Two steps are required by dyeing with azoic color.

How we chose ‘justice’. Popular Posts Sewing thread: The coupling component is finally soluble in diazotization reaction.