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Functional Colorants Quiz

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Questions and Answers

What is the difference between dyes and pigments?

Dyes are used in surgery, while pigments are used in ceramics

Dyes are insoluble compounds, while pigments are soluble compounds

Dyes are applied by dispersion, while pigments are applied from a solution in water

Dyes are soluble compounds, while pigments are insoluble compounds (correct)

What is the specific purpose of functional colorants?

They are included in the product for purposes other than aesthetics (correct)

They are included in the product for cost-saving purposes

They are used to enhance the aesthetic appeal of the product

They are only used in the textile industry

How are dyes usually applied to textiles?

By dispersion in a suitable medium

By using a chemical bonding process

From a solution in water (correct)

By direct mixing with the textile fibers

What is responsible for the color of dyed and printed textile fiber materials?

<p>Molecules of the organic compounds called dyes</p> Signup and view all the answers

How are pigments applied?

<p>By dispersion in a suitable medium</p> Signup and view all the answers

Study Notes

Introduction to Colorants and Their Applications

Colorants are used in various industries such as cloth, paints, plastics, photographs, and ceramics.
Functional colorants are now being used in novel applications for specific purposes beyond aesthetics, such as in surgery.
Colorants can be classified as dyes or pigments.
Dyes are soluble, colored organic compounds applied to textiles from a water solution, designed to bond strongly to the polymer molecules in the textile fiber.
Pigments are insoluble compounds applied using dispersion in a suitable medium.
The color of dyed and printed textile fiber materials is determined by the molecules of the organic compounds called dyes.
The color of textile materials in white light depends on which incident light waves are absorbed and reflected from the dye molecules within the polymer system.

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Description

Test your knowledge of colorants in various industries with this quiz. Explore the different applications of functional colorants and learn about their specific purposes beyond aesthetics. Delve into the differences between dyes and pigments.