Practicing Success

Target Exam

CUET

Subject

Chemistry

Chapter

Organic: Polymers

Question:

What is rayon commonly known as?

Options:

Natural silk

Artificial silk

Synthetic rubber

Synthetic plastic

Correct Answer:

Artificial silk

Explanation:

The correct answer is option 2. Artificial silk.

Rayon, often referred to as "artificial silk," is a versatile semi-synthetic fiber with properties similar to those of natural fibers such as silk and cotton. Rayon is composed of regenerated cellulose fibers, making it a semi-synthetic fiber. Cellulose, the main component of plant cell walls, is extracted from wood pulp or other plant sources and then chemically processed to produce rayon fibers. The manufacturing process of rayon involves several steps:

Cellulose Extraction: Cellulose is extracted from wood pulp or other plant sources through chemical or mechanical methods.

Dissolution: The extracted cellulose is then dissolved in a solvent, typically sodium hydroxide (caustic soda) or carbon disulfide, to form a viscous solution known as viscose.

Filament Formation: The viscose solution is extruded through spinnerets into a coagulating bath, where the cellulose regenerates and solidifies into fine filaments.

Washing and Drying: The solidified filaments are washed to remove residual chemicals and then dried to produce rayon fibers.

Rayon exhibits several properties that make it a desirable material for various applications:

Softness: Rayon fibers are soft and smooth to the touch, making them comfortable to wear against the skin.

Drapability: Rayon has excellent draping properties, allowing it to flow and hang gracefully, similar to natural silk.

Absorbency: Rayon has good absorbent properties, making it suitable for clothing and textiles.

Versatility: Rayon fibers can be blended with other fibers such as cotton, polyester, or wool to enhance certain properties or create new materials with a combination of characteristics.

Applications: Rayon is used in a wide range of applications, including:

Apparel: Rayon fabrics are commonly used in clothing such as dresses, blouses, shirts, and skirts due to their softness, drape, and luster.

Home Textiles: Rayon is used in home furnishings such as curtains, upholstery, bed linens, and towels.

Industrial Applications: Rayon fibers are also used in non-woven fabrics, medical supplies, and industrial products.

In summary, rayon is a versatile semi-synthetic fiber that combines the desirable properties of natural fibers with the manufacturing advantages of synthetic materials. Its softness, drapability, and luster make it a popular choice for a wide range of applications in the textile industry and beyond.