Reactive Dyes in Textile Dyeing
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Questions and Answers

Reactive dyes are anionic dyes used for dyeing cellulose, protein, and polyamide fibers.

False

Reactive dyes form hydrogen bonds with fiber polymers during the dyeing process.

False

Textile materials dyed with reactive dyes have poor wash fastness due to weak bonds formed between the dye and fiber polymer.

False

Reactive dyes have excellent light fastness with a rating of about 6.

<p>True</p> Signup and view all the answers

The first three reactive dyes were PROCION YELLOWR, PROCION BRILLIANT RED 2B, and PROCION BLUE 3G.

<p>True</p> Signup and view all the answers

Which type of fibers can be dyed using reactive dyes?

<p>Cellulose, protein, and polyamide fibers</p> Signup and view all the answers

What is the defining characteristic of a reactive dye?

<p>It contains a reactive group that forms covalent bonds with the fiber polymer</p> Signup and view all the answers

What contributes to the good wash fastness of textile materials dyed with reactive dyes?

<p>Covalent bonds formed between the reactive group of the dye and the fiber polymer</p> Signup and view all the answers

What is the reason for the popularity of reactive dyes?

<p>Ability to produce bright shades of wide range and good wash fastness</p> Signup and view all the answers

What is the solubility characteristic of reactive dyes?

<p>Soluble in water</p> Signup and view all the answers

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