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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It is directly insoluble in water. Students, teachers and professionals can publish your article here. Please tell us where you read or heard it including the quote, if possible.

An overview of Azo dyes

Normally two baths are needed for dyeing: Like Us On Facebook. LinkedIn Facebook Google Plus. General procedure for dyeing cellulosic material with Azo Dyes. It has wide color range.

In this way, dyeing procedure is completed.

Subscribe to America’s largest dictionary and get thousands more definitions and advanced search—ad free! Parameter Melt spinning Dry spinni Dyestuff always used in cellulosic materials. Two steps are required azkic dyeing with azoic color.

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What made you want to look up azoic dye? Then NaOH is added into the bath. The yellow combination with AS — G and those with napthol of high substantivity are the most difficult one to strip.

Azoic dyes

Coupling is necessary for color production. This dye stuff is called developed dye due to formation of dye in fiber during dyeing process. In the developing bath salt is dissolved dyee hot water and then cold water added in the bath.

To protect from sunlight, we can use Al — sulphate. Actually, these dyes are produced within the fibers itself. After printing the printed fabric is dried at for minute in a dryer. As the first coupling component is Napthol color.

It is mainly applicable for cellulose fibres. Definition, types and end uses Fabric Selvage Definition and types of yarn count Types and flow-chart of jute processing What is Resin finishing? Start your free trial today and get unlimited access to America’s largest dictionary, asoic. Dyes for Protein Fibers. He’s making azoif quiz, and checking it twice He is working with one European textile machinery company as a country agent.

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Azoic dye is comparatively cheap than other dyes.

Properties of Azoic Dyes: So printing becomes uneven. Then we will observe the color will come out completely from that sample.

Azoic Dye | Definition of Azoic Dye by Merriam-Webster

Insoluble azo group present in it. Application time has needed more here. Djes a Comment Spamming is strictly Azojc. Need even more definitions? Now this liquor and sample are to come in an oxidizing action in the presence of air or an oxidizing agent. Napthol dispersed in alcohol T. These dyes are not found in readymade form. Marker efficienc y is a very important term in case of garments production. The difference between melt spinning, dry spinning and wet spinning is given below: Ultimate color product is insoluble.

Developing Bath 2nd bath.