VAT dyes share unique properties that are not carried by other dyes including reactive dyes, basic dyes, acid dyes, disperse dyes, or azoic color. VAT dyes exporters will talk about the properties of VAT dyes and their uses in this article. You can find out how industry is using VAT dye and on which fabric in detail.
Vat dyes are applied for coloring cellulosic fiber, such as cotton. This dye is vastly used for run the dyeing process of cotton yarns, which is used and processed for manufacturing denim product.
The term “VAT” comes from vessel; vat dyes can be used in a vat for coloration textile products. Vat dyes are natural coloring ingredients that are soluble in a VAT with the help of fermentation process known as vatting.
Since Vat dyes are insoluble in water, experts use the vatting process to make it soluble.
There are several properties shared by Vat dyes. You need to remember certain points before and during the process of coloring. Some major properties are as under-
- Vat dyes are natural coloring dyes
- Vat dyes are insoluble in water
- Professionals use vatting process to make vat dyes soluble
- The final color is formed with the help of oxidation method
- Professionals perform vatting in alkaline condition
- Vat dyes have great fastness properties
- Vat dyes don’t have good rubbing properties
- Vat dyes can bring different types of skin disease
- Vat dyes are generally applied on cellulosic fibers
- Color stability in the fiber is superb
- Wide range of colors can be made with vat dyes
- Use of vat dyes is limited in practical life
- Vat dyes are costly as compared to other dyes
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Vat dyes are significant dyes for coloring and printing cotton and cellulosic fibers. These have superb all round fastness, which includes – washing, perspiration, light, and chlorine. These dyes are insoluble in water and experts use sodium hydroxide and sodium hydrogen sulphite at 50 degrees for 15-20 minutes.
When vat dyes are turned into soluble dyes, they act like direct dyes and this property make it possible to color cotton with vat dyes. These dyes remain in their soluble form if excess of sodium hydrosulphite and sodium hydroxide is present in the dye bath. When exposed to air, the soluble liquid form of the dye gets converted to colored insoluble dye.
If you want to source contaminant free vat dyes, you can reach to vat dyes exporters in your town. They will also provide the best guidelines to use their products.