Question

Indigo is used on –

• A. Silk Clothes
• B. Wollen Clothes
• C. Colourful Clothes
• D. White Cotton Clothes

Hint:

Indigo is primarily a cotton dye producing blue color. It works best on white cotton fabrics through a unique oxidation process. Remember: Denim (jeans) gets its blue color from indigo dye on cotton.

Answer 1

The Correct Option is D

To determine on which type of clothes Indigo is used, we need to understand the purpose of Indigo dye.

Use of Indigo: Indigo is a natural dye that is primarily used to impart a vibrant blue color to fabrics. It is commonly associated with blue dyes used in various textiles. Historically, it has been used for dyeing cotton fabrics due to its ability to adhere well to natural fibers.

1. Silk Clothes: Silk is a protein fiber which generally requires specific types of dyes like acid dyes or direct dyes that are suited for animal fibers. Indigo is not typically used for silk due to its strong affinity for cellulose fibers, not protein fibers.
2. Wollen Clothes: Like silk, wool is also a protein fiber. While wool can be dyed with a variety of substances, Indigo is not commonly used, especially since it tends to have a weaker effect on protein fibers.
3. Colourful Clothes: This option is too broad and unspecific. Indigo is specifically used to impart a blue color, not a multitude of colors, thus making this option irrelevant.
4. White Cotton Clothes: Cotton is a cellulose fiber, which is ideally suited for being dyed with Indigo. The use of Indigo primarily involves the dyeing of cotton clothes to transform them into denim and other blue garments.

Conclusion: Based on its properties and widespread use, Indigo is most appropriately used on White Cotton Clothes. This is because Indigo adheres well to cotton and is historically and popularly used in the dyeing of cotton fabrics to achieve the classic blue color.