Fibre to Fabric is Chapter 3 taken from JKBOSE Class 6 Science. This post will provide you with a brief overview of the chapter, and detailed solutions to the chapter. In the last post, you studied Question Answers of Chapter 2 Components of Food. Let’s not waste time and get started with this post:
Fibre to Fabric Class 6th Question Answers
Overview of Chapter
- VARIETY IN FABRICS.
- SOME PLANT AND ANIMAL FIBRES.
- SPINNING COTTON YARN.
- YARN TO FABRIC.
- HISTORY OF CLOTHING MATERIAL.
When we went to buy clothes, we see a variety of cloth materials in the cloth store. The different varieties of clothes or fabrics are cotton, woollen, silk and synthetic etc. This chapter is all about variety in fabrics, how these fabrics are made, what are different types of fibres, how are fibres processed to form yarn and how yarn is made into fabrics and what is the history of clothing material.
Variety in Fabrics
There is a large variety of fabrics found in the cloth shops in the market. The most common types of fabrics used by us are:
- Cotton Fabrics.
- Woollen Fabrics.
- Silk Fabrics.
- Synthetic Fabrics.
If we have a close look at a piece of fabric, we will find that it is made up of yarns or threads and if we try to unfold a thread or yarn we will see that yarn or thread is further made up of very thin and fine strands called fibres. Fibre is the basic unit of fabric. The fibres are broadly classified as
- Natural Fibres —-Plant and Animal Fibres
- Synthetic Fibres — Polyester, Nylon, Acrylic.
Some Plant and Animal Fibres
Plant Fibres: The fibres like cotton, jute and flax which are contained in plants are called plant fibres.
Animal Fibres: The fibres like wool and silk which are obtained from sheep and silkworms are termed animal fibres.
Spinning Cotton Yarn
The process of making yarns from fibres is called spinning. In this process, the fibres from a mass of cotton, wool or silk are drawn out and twisted. It brings the fibres together to form yarn. The process of making yarn from fibres can be completed by using these three devices:
- Hand Spindle (Takli)
- Spinning Wheel (Charkha)
- Spinning Machines.
Yarn to Fabric
After producing yarns through the process of spinning. These yarns are used to make fabrics which are used for making clothing items. There are many ways of making fabrics from yarns but the two most common and widely used methods for making fabrics from yarns are:
- Weaving: It is a process of making fabrics from two sets of yarns by arranging them at right angles to each other. It can be done by looms, handlooms or power looms.
- Knitting: The process of making fabric by interlocking the loops of the yarn using knitting needles or machines is called knitting. A single yarn is used to make fabric in the case of knitting and pulling out a single yarn can unravel the fabric.
History of Clothing Material
In ancient times, people do not use to wear clothes. During those times people used the bark of trees, big leaves of trees, animal skin and furs to cover their bodies.
After the people began agricultural practices and the development of settled communities, they learnt to weave twigs and grass into mats and baskets. After that people used fabrics woven out by twisting vines and animal fleece. Later on, people started growing cotton. The early Indians wore fabrics made out of cotton that grew in regions near the river Ganga. In the early days, people used to wear unstitched clothes. After the invention of the sewing needle, people started using stitched clothes.
Fibre to Fabric Question Answers
- Classify the following fibres as natural fibres or synthetic fibres:
nylon, wool, cotton, silk, polyester, jute
|Natural Fibres||Synthetic Fibres|
- State whether the following statements are true or false:
- Yarn is made from fibres (True)
- Spinning is a process of making fibres. (False)
- Jute is the outer covering of coconut. (False)
- The process of removing seed from cotton is called ginning. (True)
- The weaving of yarn makes a piece of fabric. (True)
- The silk fibre is obtained from the stem of a plant. (False)
- Polyester is a natural fibre. (False)
- Fill in the blanks:
- Plant fibres are obtained from _________ and ___________.
- Animal fibres are __________ and ___________.
- Plant fibres are obtained from cotton and jute.
- Animal fibres are wool and silk.
4. From which parts of the plant cotton and jute are obtained?
Ans. The cotton fibres are obtained from cotton fruits (cotton bolls), in which cotton fibres are attached to the seed while jute fibres are obtained from the stem of the jute plant.
5. Name two items that are made from coconut fibres.
Ans. The two items that are made from coconut fibres are ropes, mats and coir mattresses.
6. Explain the process of making yarn from fibres.
Ans. The process of making yarn from fibres is called spinning. It can be done by hand spindle (Takli), spinning wheel (Charkha) or spinning machine. In this process, the fibres from the mass of cotton wool are drawn out and twisted. This brings the fibres together to form yarn. Large-scale spinning is done with the help of spinning machines.
7. How silk is obtained from a cocoon?
Ans. To obtain silk from cocoons, they are first boiled. The boiling kills the worms inside the cocoon and also softens the cocoon. The silk fibres are then obtained. The fibres thus obtained are of varying lengths which are twisted together to form a yarn.
8. What is sericulture?
Ans. The breeding and rearing of silkworms for the production of silk is called sericulture.
9. What are the factors which affect the quality of wool?
Ans. The quality of wool depends upon age, health and climatic condition in which the animal is living from which wool is produced.