Table of Contents
- 1 What is retting in jute?
- 2 How do you harvest jute fiber?
- 3 What are the two steps followed to separate the Fibres from harvested plant?
- 4 What is a retting process?
- 5 Why jute is cultivated in Westbengal?
- 6 Where are jute grown in India?
- 7 Why is the stem of jute immersed in water?
- 8 What is the process of making yarn from fibre known as?
- 9 How does microbial retting of jute take place?
- 10 What kind of water is used for retting jute?
- 11 How long does it take to Ret a jute?
What is retting in jute?
Retting is the process of extracting fibers from the long lasting life stem or bast of the bast fiber plants. Usually, this small stalk is brought before 2 weeks of harvesting time. If the fiber can easily be removed from the Jute hurd or core, then the crop is ready for harvesting.
How do you harvest jute fiber?
The fibers are first extracted by retting. The retting process consists of bundling jute stems together and immersing them in slow running water. … After the retting process, stripping begins; women and children usually do this job. Jute is obtained from the plants Corchorus olitorius and Corchorus capsularis.
How is jute obtained?
Jute is extracted from the bark of the white jute plant (Corchorus capsularis) and to a lesser extent from tossa jute (C. olitorius). It is a natural fibre with golden and silky shine and hence called the Golden Fibre. Jute is an annual crop taking about 120 days (April/May-July/August) to grow.
What are the two steps followed to separate the Fibres from harvested plant?
There are two types of retting: stem and ribbon.
What is a retting process?
retting, process employing the action of bacteria and moisture on plants to dissolve or rot away much of the cellular tissues and gummy substances surrounding bast-fibre bundles, thus facilitating separation of the fibre from the stem.
Which bacteria is used for retting of jute fibres?
The microbes used for retting of jute are butyric acid bacteria such as Clostridium perfringens, Clostridium botulinum, etc. So the correct option is B) Butyric acid bacteria.
Why jute is cultivated in Westbengal?
Answer: because jute is grown in West Bengal as due to the alluvial new alluvium formed by river every year in bengal provided suitable condition for cultivation and west bengal has good soil fertility.
Where are jute grown in India?
Jute is primarily grown in West Bengal, Odisha, Assam, Meghalaya, Tripura and Andhra Pradesh. The jute industry in India is 150 years old. There are about 70 jute mills in the country, of which about 60 are in West Bengal along both the banks of river Hooghly. Jute production is a labour intensive industry.
Why is jute stem kept in stagnant water?
Explanation: The process by which the stem of jute plant is immersed in water after harvesting is termed as retting. In this way the unnecessary tissues are dissolved and they are separated from the stem. The moisture is absorbed and the bacteria helps in the decay of the fibers.
Why is the stem of jute immersed in water?
Answer: Explanation: This process is called retting. Stem of jute plant is immersed in water to obtain jute fibre. stem of jute plant is immersed in water because retting process takes place and to obtain jute fibre from the stem.
What is the process of making yarn from fibre known as?
Solution: The process of making yam from fibres is called spinning. Fibres from a mass of cotton wool are drawn out and twisted. This brings the fibres together to form yarn.
Why is the process of retting is used to separate the cotton fibres from cotton bolls?
Answer:Retting is not used to separate cotton fibres from cotton balls because digestion of cellulose takes place by this process. Use of microorganisms takes place in this process. This process is majorly used in separation of jute and lenin.
How does microbial retting of jute take place?
Mechano-microbial retting of jute involves two distinct operations viz. i) Mechanical extraction of green ribbons through either power operated bast fibre extractor suitable for jute, mesta, sunnhemp and ramie or manually operated jute fibre extractor and
What kind of water is used for retting jute?
Conventional method of whole plant retting • Under this method, defoliated jute bundles are steeped in clean or stagnant water according to the availability with proper jak materials. Most of the farmers used mud or banana logs as jak resulting in dark coloured fibre leading to less net income.
Where does the fiber for jute come from?
The jute fiber comes from the stem and ribbon (outer skin) of the jute plant. The fibers are first extracted by retting. The retting process consists of bundling jute stems together and immersing them in slow running water. … After the retting process, stripping begins; women and children usually do this job.
How long does it take to Ret a jute?
• When the retting of jute is completed in 18-21 days, fibre is extracted manually by “beat-break-jerk” or single plant extraction method. A typical “Jak” of Jute bundles for retting