Chapter-3 Fibre to Fabric (Exampler)

Solution:

C Sericulture is the appropriate selection.

The right answer is C.

Description of the ideal selection:

Sericulture is the method through which silkworms are raised, made to reproduce, and monitored as they develop in a particular environment.

The extraction of silk Is then done using them.

One type of silkworm that is frequently used to extract silk is Bombyx mori.

The Eri, Muga, and Tasar species of silkworm are also employed. Wild silk is produced using these species.

Solution:

Sheep enjoy grass and the leaves of different trees because they are herbivores. Pulses, maize, jowar, oil cakes (material left over after removing oil from seeds), and minerals are also mixed in with their meals.

Solution:

The silk yarn is made from the silk moth’s cocoon, which is the correct response. There are several types of silk moths, and they all have quite diverse appearances and textures in the silk yarn they produce (coarse, smooth, shiny, etc.) Tassar silk, mooga silk, kosa silk, etc. are produced as a result from cocoons spun by several moth species.

Solution: 

A protein makes up natural silk, which is obtained from the cocoons of silkworms. Animal fibres include natural silk. Artificial silk is constructed of modified plant material called “cellulose,” and it is produced from wood pulp. When put through the burning test, natural silk fibre emits the scent of burning hair whereas synthetic fibre emits the smell of burning paper.

Solution::

The wool business provides many people in our nation with a significant source of income. Sorters are those who perform the task of sorting (differentiating) sheep’s wool into fibres of various quality. The sorter’s job has a high risk of infection from the “anthrax” bacteria, which can result in sorter’s disease, a fatal blood condition.

Solution:

According to an ancient Chinese tradition, the emperor Huang-ti ordered the empress Si-lung-Chi to determine the reason for the mulberry trees’ damaged leaves that were growing in their garden. White worms were devouring mulberry leaves, the empress discovered. She also observed that they were surrounded by shimmering cocoons that were spinning. Unintentionally, a cocoon fell into her cup of tea, and a tangle of fine threads tore free. This is how silk was unintentionally found. This is how China’s first silk industry got its start.

Solution:

To extract silk fibre, a pile of cocoons is used. The cocoon is held in the sun, near boiling water, or near steam.

The fibres of silk separate. Reeling the silk is the process of removing strands from the cocoon for use as silk.

Solution:

A few types of silk are mulberry silk, tassar silk, mooga silk, and kosa silk. The most popular kind of silk is mulberry silk. It is made of protein and is derived from the cocoons of mulberry silkworms. It is both natural silk and an animal fibre.

Solution:

The caterpillar consumes the mulberry tree’s leaves day and night, which causes it to get larger; nevertheless, this does not cause its skin to expand in size, shape, or length. A silkworm sleeps for 24 hours each time four times throughout the feeding phase, spaced six days apart. The worm's skin splits while It sleeps, and when it awakens, it sheds the old skin and dons a fresh one. It thus sheds skin, and this process is known as moulting. The final feeding phase (which lasts for about ten days) before the worm reaches its adult size starts after the final moulting.

Solution:

It Is made of modified plant material called cellulose and is known as rayon, or artificial (synthetic) silk. In factories and mills, synthetic silk can be produced on a massive scale. The price is low. We must raise silk moth larvae in order to produce pupa in order to obtain pure silk. The cocoon must be dipped In hot water to obtain silk thread, which is then coiled around the cocoon. Within the cocoon, the pupa perishes. Several people worked to obtain silk for commercial interests.

Solution:

When sorting (separating) sheep’s wool into fibres of various grades, workers in the wool business occasionally become infected with the anthrax bacterium. It results in sorter’s disease, a deadly blood condition.

Solution::

The mulberry silk moth is the most prevalent type of silk insect. Mulberry silk is the silk that is produced from mulberry silk moth cocoons. Mulberry silk may be dyed any colour and is supple, glossy (shiny), and elastic.

Solution:

The answer is that fabrics and fibres are widely used in practical applications. A fibre is a strand of material that resembles hair. They are distinguished by being incredibly lengthy in comparison to their breadth and are the smallest visible unit of a fabric. Fabric can be created from spun fibres and yarn. A single fibre cannot be broken because it is too fragile, yet it can be torn because it once formed a fabric. When opposed to a single fibre, fabric requires more energy to be torn apart.

Solution:

It is true because stionssence, the silkworms hatch from the eggs of silk moths as larvae and caterpillars rather than as genuine worms. So, the female silk moth first lays eggs, which later hatch into larvae, which are also known as caterpillars.

Caterpillars of the silk moth are called silkworms. Sericulture is the practise of raising silkworms for the purpose of producing silk, which is what it is used for.

Solution:

Incorrect; typically, sheep are raised.

Production of wool:

Sheep are typically raised in India for their wool.

Woolen clothing can be made from the obtained material.

Goats and camels are not utilised to produce wool.

Goats are occasionally raised for their wool.

Solution:

It is sericulture, not false, you say.

D sericulture is the appropriate selection. The silkworms’ cocoons are where we get the silk that we utilise for our clothing. The silk is extracted after the silkworms have been carefully raised for this. Sericulture is the practise of raising silkworms for the production of silk.

Solution:

It is sericulture, not false, you say.

Sericulture

The silkworms’ cocoons are where we get the silk that we utilise for our clothing. The silk is extracted after the silkworms have been carefully raised for this. Sericulture is the practise of raising silkworms for the production of silk. Sericulture. The silkworms’ cocoons are where we get the silk that we utilise for our clothing. The silk is extracted after the silkworms have been carefully raised for this. Sericulture is the practise of raising silkworms for the production of silk.

Solution:

It is true.

Scouring is used to clean wool and remove contaminants. Separating diverse fibre types from one another is part of the sorting process. Sorting comes after scouring. The statement is true as a result. The various hair kinds and textures need to be sorted after scouring. To discriminate between low-quality and high-quality wool fibres, this is done. In the figure below, wool sorting is demonstrated.

Solution:

To manufacture woollen fabric, yak hair is utilised in place of real hair.

False Sheep, yak, goat, and camels are just a few of the animals from which wool fibres can be collected. Thus, woollen fabric can also be made from yak hairs. Consequently, the aforementioned claim is untrue. Yaks (Bos grunniens), a long-haired bovine mostly found in the Himalayan region, Tibetan plateau, and some areas of Mongolia and Central Asia, are known for producing yak fibre, which is a type of wool.

Solution:

1. Beans. Consider soup, chilli, bean burritos, and a three-bean salad.

2. Whole grain foods. It refers to whole-wheat pasta, bread, etc.

Three. Brown rice. White rice does not contain a lot of fibre.

4. Cottn. It's a fantastic fibre source.

5. Nuts. Compared to other nuts, walnuts, pecans, and almonds have higher fibre.

6. Skin-on baked potato. The skin is crucial in this case.

Berry (7). Each berry receives significant fibre from all those seeds in addition to the skin.

Solution:

Several other animals, including sheep, serve as the main source of wool production. Two kinds of fibres make up the sheep's skin hairs, which together make up its fleece:

The under-hair closest to the skin that is (a) fine and silky and (b) coarse and rough. For manufacturing wool, these delicate hair fibres are chosen. Breeds of sheep with only fine underhair are specifically chosen to breed and produce lambs with only soft underhair in order to produce such delicate and fine hairs. This method of choosing parents to produce offspring with unique traits, like sheep with soft underhair, is known as "selective breeding."

Solution:

Although yak wool is an excellent fibre, it is nevertheless uncommon in the fashion world. According to media stories, the characteristics of this luxuriously soft cloth have acquired more attention lately.

Yak wool is generated from the coat hair of the yak and is popular in Tibet and Ladakh.

In Tibet and Ladakh, or the northern regions of India, yak wool is widespread. The right response is thus "Tibet and Ladakh."

Solution:

Various sheep breeds may be found in various Indian states.

The states of Uttar Pradesh and Himachal Pradesh contain Rampur bushair.

Jammu and Kashmir is home to the Bakharwal sheep. Punjab, Haryana, and Rajasthan are the states where nali is grown.

Solution:

Hair's function:

Mammal hair has the ability to retain body heat, protecting the animal from the cold.

All animals have thick coats of hair.

This hair helps certain animals, including yaks and lambs, keep their bodies warm.

Mammals need heat to maintain their body temperature because they are warm-blooded creatures.

The hair on these critters holds a lot of air inside.

Solution:

High altitude goats, which are prevalent in the Himalayan area, have a storied past in Kashmir's paradisiacal valley. The Changthang goats are a rare type of goat that live in the chilly, dry Changthang region of Ladakh. Across their bodies, a soft and delicate fibre known as cashmere wool grows. This Cashmere wool goes through a number of steps to create the renowned Pashmina shawls. Thus, we may claim that Ladakh's Changthang goat is the source of Pashmina wool (Cashmere). The best shawls, scarves, and wraps are then created using it.

Solution:

The Changthangi or Pashmina goat may be found in Ladakh, Baltistan, Mongolia, Burma, Bhutan, and China (Tibet) (Kashmir region).

Please mark as the smartest response.

Goats from the Himalayas

goats on mountains pashmina goats

Solution:

Fibre is a term used to describe a material made up of strands that are thin and continuous. There are two types of fibre: natural fibre and synthetic fibre. Natural fibres are those derived from plants and animals. Synthetic fibres are manufactured fibres derived from petrochemicals, which are petroleum-based basic materials. The natural fibres cotton and wool are two examples. The following are some examples of synthetic fibres: nylon, polyester, etc. Wool is a naturally occurring animal fibre that may be derived from sheep, goats, yaks, camels, etc. All of these creatures have a hairy coat that is removed to produce wool fibres. Animals are the source of naturally occurring animal fibres.

Solution:

Silk

One of the first man-made fibres is silk. It is an animal fibre that some insects create to make their cocoons and webs.

The origin of a natural fibre can be used to categorise it. Among the significant fibres of the vegetable, or cellulose-base, class are jute, flax, and cotton. Wool, mohair, and silk are examples of fibres made mostly from animal protein. Asbestos is a significant fibre in the mineral family.

Solution:

Animals that produce wool are primarily found in northern regions of India or the world, such as Ladakh, Nepal, Sikkim, etc. In India, sheep and yaks are the animals that produce wool.

In India's Himalayan foothills, alpacas can be found.

Alpacas are a kind of sheep that produce fine wool.

Alpacas are indigenous to Peru. Only the llama and alpaca are domesticated South American camelids, and they are only to be found in the foothills of the Andes Mountain.

The llama's wool is very silky and lanolin-free. Alpacas are well recognised for their wool-like fibres used for knitting and weaving.

Solution:

Rearing: Raising, feeding, breeding, and caring for domesticated animals is referred to as rearing.

Animals that provide goods that are helpful to humans are raised.

Sheep are raised by being given food, water, bred, and other care.

Often, it takes place outside or inside a shed under dwellings.

The meat and fibre that sheep produce is the reason they are raised.

Breeding is the process of having children through sexual reproduction.

The chosen species are permitted to mate in animal husbandry in order to create progeny.

Only certain types of sheep are permitted to breed in sheep farming. Typically, just one type of ram (male sheep) is chosen and permitted to breed with a herd of sheep.

Solution:
The stages involved in weaving and knitting wool for sweaters and shawls are as follows:
Shearing: Shearing is the process of removing the fleece-like hair from a sheep's body. Sheep can live without their protective layer of hair since the hairs are often removed in the summer. The hair creates woollen fibres, which are then treated to produce yarn made of wool. The sheep are not injured during shearing since the top layer of skin is dead.
Scouring: Scouring is the term for washing fleece in a way that gets rid of debris, grime, dried perspiration, and grease. Sheep's fleece is cleaned by this procedure. After that, the fleece is dried.
Sorting: Sorting is the process of dividing a sheep's fleece into parts based on the quality of the woollen fibresThe hairy skin is delivered to a facility where various hair kinds are distinguished. Afterwards, many animals' fleeces are blended to create wool of the same quality.
Sheep's hair is often white, brown, or black in hue.White woollen fibres that have been sorted can be dyed a variety of colours.
A stage in preparing woollen fibres for yarn spinning is combing. It is done by using combs with metal teeth.
Spinning: Wool is a thick yarn made from long woollen fibres that are spun.

Solution:

Shearing is the initial step in the conversion of fibre into wool.

It entails removing the skin's topmost layer, which is covered by the fleece.

A sheep's thick coat of hair must be removed in order to acquire its wool. It is carried out in hot weather.

Solution:

Although most people concur that silk is the most realistic-looking material to utilise in creating false greenery, artificial silk is a type of plant fibre. A protein-rich fibre produced by silkworms is used to make a silk plant. Often what are advertised as "silk plants" are actually plastic, polyester, and polymers.

Solution:

Wool and silk are two fibres that are composed of proteins.

The textile material known as wool is derived from sheep and other animals, including goats, rabbits, and camelids.

 The phrase can also be used to describe inorganic substances that resemble animal wool, such as mineral wool and glass wool.

Wool is an animal fibre made primarily of protein with a trace amount of lipids. This sets it apart chemically from cotton and other plant fibres, which are mostly made of cellulose.

Solution:

Reeling is the process of extracting the silk thread fibres from the silkworm's cocoon. This is the procedure that separates the fibres from the wound cocoon and winds them into long threads using various types of machinery and equipment. The right response is hence "Reeling."

Solution:

As a female lays eggs, the silk moth life cycle begins. The eggs of the silk moth hatch into caterpillars or larvae. Silkworms produce pupa while they are eating mulberry leaves. The silkworm spins a net around itself while it is in the pupa stage to keep itself confined. Then, while moving its head, it spins a protein-based fibre that finally transforms into a silk fibre. The term "cocoon" refers to the overall protective covering that numerous caterpillars form around the pupa. The silk thread is produced using the cocoon of the silk moth (yarn).

Solution:

The longest continuous piece of silk that can be extracted from a cocoon is 900 metres long.

This is the maximum length that has been recorded, however in most situations it may change since various cocoons have varying amounts of silk inside of them due to their differing sizes and shapes.

The longest continuous length of silk thread that can be extracted from a cocoon is greater than 1000 feet (between 1000 and 1500 feet).

Solution:

Selective breeding is the practise of mating carefully chosen parents in order to produce offspring with unique traits, such as sheep with soft underhair.Breeding plants and animals with a certain genetic trait is known as selective breeding or artificial selection. Over thousands of years, people have developed food crops from domesticated animals and wild plants.

Solution:

The silk fibre is produced by a silk moth's larva (or caterpillar). The silk moth's eggs hatch, and then the caterpillar or larvae are created. Silkworms produce the pupa when they devour mulberry leaves. The silkworm spins a net around itself while it is in the pupa stage to keep itself confined. Then it turns its head while spinning a protein-based fibre that will eventually develop into silk fibre.

Solution:
Production of Wool from Fibers
The end product of a protracted procedure is the wool that is used to make sweaters or weave shawls. The following processes are involved in turning fibres into wool:
Step I
The sheep's body has a thin layer of skin and its fleece removed. We refer to this procedure as shearing. A shaving device similar to those used by barbers is used to remove the sheep's hair.Shearing does not harm sheep since their top layer of skin is considered to be "dead." Shearing (the act of cutting a sheep's hair) takes place during the sweltering summer months so that the sheep can live without their protective covering of hair. Before winter arrives, sheep's hair grows back, protecting them from the elements. Woolen fibres are obtained from sheep's fleece (or hair).After processing, woollen fibres are turned into yarn.
Step II
Sheep's fleece (or cut hair) is covered with debris, grime, dried perspiration, grease, and other things. Thus, sheep's sheared hair is completely cleaned by being washed in tanks full of water and soap (or detergent).Scouring refers to this method of washing shorn hair. The cleaning process for sheepskin is scouring. After that, the fleece is dried. Nowadays, machines carry out the scouring.

Step III Sorting is completed after searching. Sorting is the process of dividing a sheep's fleece into parts based on the type of wool it contains (such as fine, coarse, long, short, etc.). The hairy skin is delivered to a facility for sorting where different types of hair are separated or sorted. Following sorting, every portion of wool obtained has wool of the same grade. Then, various types of wool of the same grade are combined.
stepIV
Burrs, which are little fluffy fibres, are removed from the hair (burrs are soft, fluffy fibres in wool).
(The fibres are then dried and scrubbed one more. The resulting wool is ready to be pulled into fibres.


Step V
Sheep's (or goat's) natural hair or fleece is either white, brown, or black in colour. Sorting produces white woollen fibre that may be coloured with dye.

Step VI: The fibres are combed, straightened, and rolled into yarn. Long woollen fibres are spun (or twisted) into thick woollen yarn, which is then used to weave sweaters and other items.
To create woollen clothing, the short woollen fibres are spun into fine yarn and then knitted on a loom (like shawls, etc).
Ultimately, we draw the conclusion that the sheep's hair is sheared off of the body, combed, coloured, sorted, spun, and used to create wool for making sweaters (for weaving cloth). The breed of sheep from which wool is derived determines the quality of woollen fabric.

Solution:
A genuine silk fabric thread and a fake silk fabric thread were taken by Neha's mother and burned separately. Natural silk will be the thread that burns and emits the fragrance of burnt hair (or pure silk). The flaming thread that smells like burning paper is made of synthetic silk.
(b) A genuine silk saree is more expensive than a fake one.
(c) Neha's mother is knowledgeable and educated.