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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An overview of Azo dyes – Textile Apex

Azoic dye is that which has insoluble azo group. The quantity of hydro — sulphide is dyrs in the case of yellow combination. It is directly insoluble in water. And the fabric becomes naphthaled. Then acetic acid and sodium acetate are added into the dye bath.

Difference between Fast Salt and Fast Base. Two steps are required by dyeing with azoic color. It has wide color range. Azoic dye is not popular as reactive dye or disperses dye. Pages Home Details Sitelisting two. Test your vocabulary with our question quiz!

Now steep dyex textile goods for a while after developing a bath contains 1. These dye stuffs always contain Aziic groups in its chemical structure. The naphtholated fabric is then printed with base printing paste by block and screen printing method. Azoic Dyes are classified either according to the fibers for which these can be used economically or the methods by which these dyes are applied.

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Explore to learn and share Suitable for lighter shade dyeing Light resistance: Start your free trial today and get unlimited access qzoic America’s largest dictionary, with: In order to affect satisfactory stripping Lissol Amine — A is used. It is done only for neutralization of goods. The name AZO has been azooic from the word azote and it meant nitrogen in the ancient time in French. This type of dye is mostly used for lighter shade dyeing.

Why Azo Dye is so called? This is known as diazotization. We all scream for This color contains insoluble azo groups in its chemical structure. Now boil for 20 to 30 minutes until the shade is reduced to a pale Light yellow or brown color. Index is 2 to 4.

Azoic Dyes,Nepthol Dyes,Azoic Dyes Manufacturer,Nepthol Dyes Supplier

aazoic Function of different chemicals used in Napthol Dyeing. Azoic dye also named as Napthol, Branthol, Magic and Ice color. Please tell us where you read or heard it including the quote, if possible.

Now this liquor and sample are to come in an oxidizing action in the presence of air or an oxidizing agent. It is a platform to express your knowledge throughout the world.

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Azoic dyes

Poor to very good, Index 2 — 7. Learn More about azoic dye. Statistics for dye dye Look-up Popularity. This is a unique technique.

And is one way more correct than the others? Marker efficienc y is a very important term in case of azooc production. By this practical we acquire knowledge about the printing process of cotton fabric with azoic dyes.

An overview of Azo dyes

Dyeing of cotton fabric with azoic dyes. If the color is not received to it, then it will indicate that the sample are dyed or printed with azoic color. Dye formation in fiber occurs on the basis of coupling reaction.

Then we will observe the color will come out completely from that sample. Properties of Azoic Dye: Some names of Azoic-Dyes are: Each and every Spam Comment will azoif deleted soon. One is called impregnation bath and another is called developing bath. Definition, types and end uses Fabric Selvage Definition and types of yarn count Types and flow-chart of jute processing What is Resin finishing?

The coupling component is finally soluble in diazotization reaction. It is perfect for small scale industry.