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Fabrics Around Us

🎓 Class 11📖 Human Ecology and Family Sciences Part I📖 10 notes🧠 15 Q&A⏱️ ~15 min

Fabrics Around UsStudy Notes

NCERT-aligned · 10 notes · 3 shown free

FABRICS AROUND US

Explanation

FABRICS AROUND US

Fabrics are an integral part of our daily lives, providing comfort, warmth, color, and texture. From the moment we wake up, fabrics surround us — bedsheets, pillow covers, towels, clothing, school bags, curtains, kitchen dusters, floor mops, and durries are all examples of fabrics with different textures, weights, and thicknesses suited to their specific uses. When you examine a fabric closely and unravel it, you will find thread-like structures called yarns. These yarns may be interlaced at right angles (woven), interlooped (knitted), or knotted (nets and laces). If you untwist yarns, you will see very fine, hair-like structures called fibres. Fibres are the fundamental building blocks of fabrics. Together, fibres, yarns, and fabrics are called textile products or textiles. After fabric production, finishing processes such as cleaning, whitening, coloring, and texturizing improve the fabric’s appearance, feel, and serviceability. The behavior of fabrics during use and maintenance depends on the fibre type, yarn, fabric construction, and finishing applied. This chapter explores the diversity, classification, properties, and production of fabrics, helping learners make informed choices about textile products.

  • Fabrics provide comfort, warmth, color, and texture in daily life.
  • Yarns are thread-like structures formed by interlacing, interlooping, or knotting.
  • Fibres are the basic units of yarns and fabrics.
  • Textile products include fibres, yarns, and fabrics.
  • Finishing processes enhance fabric appearance and performance.
  • Fabric behavior depends on fibre, yarn, fabric type, and finishing.
  • 📌 Fabric: A material made from fibres or yarns used for various purposes.
  • 📌 Yarn: A continuous strand of fibres suitable for making fabric.
  • 📌 Fibre: The smallest hair-like structure that forms yarns.

FIBRE PROPERTIES

Explanation

FIBRE PROPERTIES

The properties of fibres significantly influence the characteristics of the final fabric. For a fibre to be useful, it must be available in large quantities and be economical. The most essential property is spinnability — the ability of a fibre to be easily converted into yarn and then fabric. Spinnability depends on fibre length, strength, flexibility, and surface structure. From a consumer's perspective, desirable fibre properties include color, luster, weight, moisture absorption, dye absorption, and elasticity. Additionally, fibres must withstand abrasion, chemicals (soaps and detergents), heat, and biological agents to ensure durability and ease of care. These properties collectively determine the comfort, appearance, and maintenance of textile products. For example, fibres with good moisture absorbency provide comfort in hot climates, while abrasion resistance ensures longevity in heavy-use fabrics.

  • Spinnability is crucial for converting fibres into yarn and fabric.
  • Fibre length, strength, flexibility, and surface affect spinnability.
  • Consumer-desired properties include color, luster, weight, moisture and dye absorption, and elasticity.
  • Resistance to abrasion, chemicals, heat, and biological agents affects fabric care.
  • Fibre properties influence fabric comfort, appearance, and durability.
  • Availability and cost-effectiveness are important for fibre utility.
  • 📌 Spinnability: The ability of a fibre to be spun into yarn.
  • 📌 Abrasion resistance: The ability to withstand surface wear.
  • 📌 Elasticity: The ability to stretch and recover shape.

CLASSIFICATION OF TEXTILE FIBRES

Explanation

CLASSIFICATION OF TEXTILE FIBRES

Textile fibres are classified based on their origin, chemical composition, generic types, and trade names. The primary classification is into natural fibres and manufactured (man-made) fibres. Natural fibres come from plants (cellulosic), animals (pr

Practice QuestionsFabrics Around Us

Includes NCERT exercise questions with answers

Q1.1. Name five articles of everyday use that are made from different types of fabrics.

Answer:

Five articles of everyday use made from different types of fabrics are: - Cotton towel - Woollen sweater - Silk saree - Nylon jacket - Rayon dress

Explanation:

These articles represent common uses of various fabric types in daily life. Cotton is used for towels due to its absorbency, wool for sweaters for warmth, silk for sarees for elegance, nylon for jackets for durability, and rayon for dresses for comfort.

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Q2.2. How are textile fibres classified? Briefly discuss their characteristics.

Answer:

Textile fibres are classified into two main categories: 1. Natural Fibres: These are obtained from plants and animals. - Plant fibres (Cellulose fibres): Cotton, Linen (Flax) - Animal fibres (Protein fibres): Wool, Silk Characteristics: - Cotton: Soft, absorbent, breathable - Linen: Strong, absorbent, cool to touch - Wool: Warm, elastic, moisture absorbent - Silk: Lustrous, smooth, strong 2. Man-made Fibres: These are chemically produced fibres. - Regenerated fibres: Rayon - Synthetic fibres: Nylon, Polyester, Acrylic Characteristics: - Rayon: Soft, absorbent, drapes well - Nylon: Strong, elastic, resistant to abrasion - Polyester: Durable, wrinkle resistant - Acrylic: Warm, lightweight, resistant to moths

Explanation:

Classification is based on origin: natural (plant and animal) and man-made (regenerated and synthetic). Each fibre type has distinct properties that suit different uses in textiles.

MediumNCERT
Q3.3. What is a yarn? Explain different methods of yarn processing?

Answer:

A yarn is a continuous strand of twisted or spun fibres used for knitting, weaving, or sewing to make fabric. Methods of yarn processing: 1. Spinning: The process of converting fibres into yarn by twisting them together. Types include: - Ring spinning - Open-end spinning 2. Drawing: Aligning fibres to make them parallel and uniform. 3. Twisting: Twisting fibres to add strength to the yarn. 4. Winding: Transferring yarn from one package to another for further processing. Each method ensures the fibres are properly aligned and twisted to produce yarns of desired strength and texture.

Explanation:

Yarn is the intermediate product between fibres and fabric. Processing methods like spinning and twisting are essential to convert loose fibres into strong, continuous yarns suitable for fabric production.

MediumNCERT
Q4.4. List the processes in fabric production.

Answer:

The processes in fabric production are: 1. Fibre preparation 2. Spinning (to make yarn) 3. Weaving or knitting (to make fabric) 4. Dyeing and printing 5. Finishing (to improve appearance and performance)

Explanation:

Fabric production involves converting fibres into yarn, then yarn into fabric by weaving or knitting, followed by dyeing, printing, and finishing to enhance fabric properties.

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Q5.5. Mention any three properties of each of the following fibres. - Cotton - Linen - Wool - Silk - Rayon - Nylon - Acrylic

Answer:

Properties of fibres: Cotton: - Soft and comfortable - Absorbent - Durable Linen: - Strong and durable - Absorbent - Cool and fresh feeling Wool: - Warm and elastic - Absorbs moisture without feeling wet - Wrinkle resistant Silk: - Lustrous and smooth - Strong - Good drape Rayon: - Soft and comfortable - Absorbent - Drapes well Nylon: - Strong and elastic - Resistant to abrasion - Quick drying Acrylic: - Lightweight - Warm - Resistant to moths and chemicals

Explanation:

Each fibre has unique properties that determine its use in textiles. Natural fibres like cotton and wool are breathable and comfortable, while synthetic fibres like nylon and acrylic offer strength and durability.

MediumNCERT
Q6.Which of the following is the basic building block of fabrics that appears as very tiny and fine hair-like structures when a yarn is untwisted?
A.A) Fibre
B.B) Yarn
C.C) Fabric
D.D) Thread

Answer:

Fibre

Explanation:

Fibres are the basic building blocks of fabrics. When a yarn is untwisted, very tiny and fine hair-like structures called fibres are seen. Yarns are made from fibres, and fabrics are made from yarns.

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Q7.Which property of fibre is essential for its ease of conversion into yarn and fabric?
A.A) Spinnability
B.B) Elasticity
C.C) Moisture absorbency
D.D) Colour fastness

Answer:

Spinnability

Explanation:

Spinnability is the essential property of fibre that determines how easily it can be converted into yarn and later into fabric. It includes length, strength, flexibility, and surface structure of the fibre.

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Q8.Textile fibres can be classified based on their origin. Which of the following is NOT a correct classification under natural fibres?
A.A) Seed hair fibres like cotton
B.B) Animal secretion fibres like silk
C.C) Synthetic fibres like polyester
D.D) Bast fibres like flax

Answer:

Synthetic fibres like polyester

Explanation:

Synthetic fibres like polyester are man-made or manufactured fibres, not natural fibres. Natural fibres include seed hair fibres (cotton), bast fibres (flax), and animal secretion fibres (silk).

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