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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Azoic dyes do not get in ready-made form in the market.
This dyestuff always contains azo groups in its chemical structure. It has wide color range. We all scream for The difference between melt spinning, dry spinning and wet spinning is given below: These dyes are not found in readymade form.
An overview of Azo dyes
He’s making a quiz, and checking it twice Two steps are required by dyeing with azoic color. Alkali resistance is poor to good. Coupling Compound Naphthol Di-azo —compound or dyed base or diazo salt. Marker efficienc y is a very important term in case of garments production. Addition of salt increases substantively. It is directly insoluble in water.
Subscribe to America’s largest dictionary and get thousands more definitions and advanced search—ad free! Students, teachers and professionals can publish your article here. This specialty makes these dyes very fast to washing within the fabric market.
Azoic dyes are used for producing bright shade of color such as orange, red, scarlet, navy blue, and black color. Light fastness property is admirable. Then NaOH is added into the bath. Now treat the sample up to boiling stage.
Properties of Azoic Dye: Then squeeze and dry. Newer Post Older Post.
Azoic Dye ~ Define Textile
It is done only for neutralization ryes goods. In Azoic Dyes insoluble azo group are present. Azoic Dyes are found mainly in three colors and these are red, brown and yellow. It is directly insoluble in water.
An overview of Azo dyes – Textile Apex
I n loop of knitted fabric the total amount of horizontal rows is known as course. Dyeing process is done by using three processes here such as coupling, naptholation and diazotization. Is Dyfs ‘They’ a Better Choice?
As the first coupling component is Napthol color. Explore the year a word first appeared. Please tell us where you read or heard it including the quote, if possible. All the chemicals according to the recipe are mixed with water to make a suitable solution.
Azoic dye is that which has insoluble azo group. Poor to very good, Index 2 — 7. Resources for azoic dye Time Traveler! Developing Bath 2nd bath.