Azoic Dye: Classification, Properties, Benefits, and Uses

What is azoic dye?

Azoic dye is produced by the combination of the Naphtha or coupling component and the Diazo component. The production procedure of Azoic Color is different from other dyes‘ production processes. Azoic color is different from other dyes, and its application process is also different.

Azoic color is called Ice Color or Magic Color because it needs a low temperature, and after coupling, color is produced within a few seconds. Color fastness properties are good to excellent.

Azoic Dye Properties and Advantages
Azoic Dyes

Classification of Azoic Dye

Cotton fibers are dyed using azo compounds, which are converted into azoic colors. Azoic dyes are not soluble in water and must undergo a chemical reaction on the surface of the fiber to produce color. Typical azoic dye types include the following:

  • Diazo Azo Dyes: These colors belong to a class of azoic dyes that also contain diazonium ions. Excellent colorfastness results from this dye. However, cotton, silk, and wool fibers are frequently dyed using this substance.
  • Naphthol Azo Dyes: It provides a large variety of hues and is frequently used for vivid colours. They come from organic substances called naphthols.
  • Fast Color Base Dyes: These dyes change color when they react with a coupling element. It offers outstanding fastness qualities and good resistance to fading, washing, and light exposure.
  • Ice Azo Dyes: Ice dyes are a particular type of azoic dye in which the coupling component is printed on the cloth and the diazonium salt is added separately. Following that, the cloth is submerged in cold water to develop its color.
  • Salt-free Azoic Dyes: When dying, this kind of azoic dye doesn’t call for the inclusion of salt.

The azoic dyes listed above are only a few examples. A variety of azoic dye variants and formulas are available.  Every azoic dye has a unique set of properties and uses in the textile industry.

Properties of Azoic Dye

The azoic color has some characteristics. The following are the characteristics of azoic color:

  • Firstly, azoic dye is a water-insoluble dye.
  • Secondly, azoic color consists of two components; such as the Azoic coupling component and the Azoic Diazo component
  • Thirdly, coupling is necessary for color production.
  • Therefore, coupling is done in alkaline condition.
  • After that, textile dyeing operation is completed by two bath arrangement such as developing bath and impregnating bath.
  • Basically, applicable for cellulosic fibers.
  • Also, the time of application is lengthy.
  • Moreover, very bright shade produce by Azoic Color.
  • Additionally, a fastness property of the textile material which is dyed by Azoic Color is good to excellent.
  • However, azoic Color is comparatively cheap in price.
  • Furthermore, wash fastness of azoic dye is very good.
  • Dyeing process is run by three processes such as Naphtholation, Diazotization and Coupling.
  • Final color produce within few seconds after immersing the textile materials in the dye solution.
  • Lastly, it uses for lighter shade dyeing.

Benefits of Azoic Dye

There are some benefits of azoic color. The following are the advantages of azoic color. They are-

  • Firstly, the color fastness of the azoic color is good.
  • Secondly, it has a wide color range.
  • Thereafter, it has a versatile application area.
  • Moreover, it is cost-effective than other dyes.
  • It is compatible to use with different dyeing, and printing techniques.
  • Also, it has the ability to absorb light.
  • Lastly, the environmental impact is low.

Disadvantages of Azoic Dye

Azoic dye is a widely used synthetic dye. Although there are some advantages of azoic dyes but it has also some disadvantages. The followings are the disadvantages of azoic dyes. they are-

  • Risks to Health: When azoic dyes are dyed or come into touch with moisture, a small number of aromatic amines may leak which may be harmful to health.
  • Environmental Issues: The main environmental safety issue with azoic dyes is the emission of aromatic amines during the dyeing process. The environment and water body will be affected if the colors are not adequately removed or handled while washing.
  • Use Restricted: Because of the possible health and environmental dangers associated with azoic dyes that include aromatic amines in their chemical makeup, there may be certain restrictions on how these colors are used.
  • Issues with Color Fastness: This dye occasionally exhibits poor color fastness and may fade or bleed when exposed to light or other environmental factors.
  • Application Complexity: Applying azoic dye is more difficult than applying other dyes. It must accurately regulate every dying parameter or the dyeing will be flawed.
  • Limited color spectrum:  They may not be able to obtain the complete gamut of colors that other forms of dye may offer, but they can generate a vivid and powerful color. The makers are restricted from using azoic colors within this color spectrum.

In conclusion, it’s critical to be mindful of both the health danger and the environmental safety while using azoic dyes. The firm has to use ETP to treat the colored water. The ecosystem will be secure if the manufacturer becomes aware and takes the necessary action to regulate environment safety.

Uses of Azoic Dye

It is used in different manufacturing industry to produce different color. The following is the application area of azoic dyes. They are-

  1. Textile Industry
  2. Leather Industry
  3. Paper Industry
  4. Ink and Printing Industry
  5. Paints and Coating Industry
  6. Plastic and Polymer Industry

Above all, azoic Color uses for coloring small amounts of textile materials dyeing. Therefore, it is suitable for small-scale industries. Besides, the azoic color dyeing process is not popular as reactive dye or disperses dye dyeing.

So, select your dyes as you need.

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