Fibres used for the manufacture of brushes are classified as a separate group and they possess different properties than are required of fibre for other uses. They must be stiff but not brittle and must possess a high degree of flexibility.
Depending upon the purpose for which the brush is used, a suitable type of fibre is selected for brush making. The fibres that are commonly used in our country for brush making are Coir, Jute, Palmyra, Sisal, Aloe and Animal hairs such as Cattle hair, horse hair, Pig hair etc.
Bass, Kittool, Palmetto, and Pita fibres are also used for brush making but they are not common in our country. Their origin is mostly Mexico and fibres of the above categories are used on a very limited scale in our country and are generally known as Mexican fibres.
Both hard fibres and soft fibres are used for brush making. Hard fibre like coir and palmyra are used for brushes meant for works of a harder nature such as scrubbing, sweeping, floor cleaning, sanitary uses etc.
Fibres of a soft nature such as Cattle hair, Horse hair etc. are used for shaving brushes, hair brushes, shoe polishing brushes, painting brushes etc.
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Brush-making fibres are different – They have special properties not needed in other fibres.
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They must be stiff but not brittle – They should also bend easily without breaking.
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The type of fibre depends on the brush’s use – Different brushes need different kinds of fibres.
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Common fibres used in our country:
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Coir
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Jute
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Palmyra
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Sisal
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Aloe
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Animal hairs like cattle hair, horse hair, and pig hair
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Some foreign fibres are also used, like:
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Bass
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Kittool
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Palmetto
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Pita
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These mostly come from Mexico and are used in small amounts. They are called "Mexican fibres".
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Both hard and soft fibres are used in making brushes.
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Hard fibres (like coir and palmyra) are used for rough work like:
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Scrubbing
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Sweeping
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Floor cleaning
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Sanitary use
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Soft fibres (like animal hairs) are used for delicate work like:
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Shaving brushes
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Hair brushes
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Shoe polish brushes
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Painting brushes
Palmyra Fibre:
Source:
Palmyra fibre comes from the palm tree with fan-shaped leaves.
It grows in India, Sri Lanka, and Burma (Myanmar).
Colour and Nature:
The fibre is brown in colour.
It is long and stiff.
How it is Collected:
The leaf stalk is slightly crushed.
Then, it is soaked in water for 1 or 2 days.
After soaking, it is beaten to loosen the fibre from the cork-like part.
The fibres are then separated and dried under the sun.
Grading:
The fibre is sorted into short, medium, and long grades.
Fibre Length:
The fibre length ranges from 9 inches to 18 inches
(22.25 cm to 45 cm).
Sisal Fibre:
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Plant Name and Origin:
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Sisal comes from a plant called Agave sisalana.
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It is native to southern Mexico, but now grown in many countries.
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Fibre Type:
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Sisal gives a stiff fibre used to make many products.
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The word "sisal" can mean either the plant or the fibre.
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It is also called "sisal hemp" (named after hemp, an old fibre plant).
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Uses of Sisal Fibre:
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Traditionally used for making rope and twine.
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Also used in making:
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Paper
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Cloth
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Shoes
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Hats
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Bags
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Carpets
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Brushes
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Where It Is Grown:
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Grown mostly in East Africa for fibre production.
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Fibre Features:
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Sisal fibre is shiny (lustrous) and white in colour.
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How It Is Extracted:
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Fibre is taken from the leaves of the plant.
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Leaves are crushed and then scraped to remove the fibre.
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The fibres are then washed and dried.
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Large Scale Production:
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There are machines available for extracting sisal fibre in large quantities.
Uses of Sisal Fibre:
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Main Use:
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Sisal is mostly used to make ropes and twines.
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Other Uses:
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Also used to make floor mats and furnishing materials.
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Used in making brushes (mainly for dusting and cleaning fine dust).
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How Sisal Fibre Is Collected:
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Source:
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Sisal fibre comes from the leaves of the sisal plant.
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Extraction Process (Machine Decortication):
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Leaves are crushed between rollers.
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Then they are mechanically scraped to get the fibre.
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The fibre is then washed and dried either by machine or sunlight.
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Yield:
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Only about 4% of the leaf’s weight becomes usable dried fibre.
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Final Step:
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After drying, the fibre is double brushed using machines.
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Properties of Sisal Fibre:
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Appearance:
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The fibre is shiny (lustrous) and creamy white in colour.
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Length: About 80 to 120 cm
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Thickness: About 0.2 to 0.4 mm
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Texture and Strength:
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The fibre is coarse and not flexible.
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It is strong and durable, good for making cords and ropes.
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It can stretch, takes up dyes well, and resists saltwater damage.
Grades of Sisal Fibre Used in Industry:
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Low-Grade Fibre:
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Used by the paper industry.
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This is because it has a high amount of cellulose and hemicellulose.
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Medium-Grade Fibre:
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Used to make ropes, baler twine, and binder’s twine.
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These ropes and twines are used in marine, agriculture, and general industry.
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High-Grade Fibre:
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Treated and turned into yarn.
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The yarn is used by the carpet industry.
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Other Uses of Sisal Fibre:
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Also used for making:
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Non-woven mats
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Brushes
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Roving (loose fibre for spinning)
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Top Sisal-Producing Countries (Yearly Production):
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Brazil – 130,000 tons (largest producer)
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Grows well in semi-arid areas
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Around 800,000 people in Brazil depend on sisal farming
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Mexico – 45,000 tons
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China – 36,000 tons
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Kenya – 25,000 tons
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Tanzania – 24,000 tons
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Madagascar – 15,000 tons
Preparing Coir Fibre for Brushes:
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Type of Fibre Used:
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Bristle fibre with long length is best for making brushes.
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Usually comes in small bundles about 2 inches thick.
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Combing Process:
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The bundles are untied.
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Then they are combed to:
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Remove pith (dusty or woody parts)
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Make the fibres straight and parallel
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How Combing Is Done:
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Nails are fixed upright on a flat wooden board.
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Fibre bunches are held by hand and combed by pulling them across the nails.
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General Process of Making Coir Brushes:
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Cutting the Wood:
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Big wooden logs are first cut into pieces using a Band Saw.
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These pieces are then cut into smaller parts using a Circular Saw.
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Shaping the Wood:
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Small wood pieces are shaped using a Wood Turning Lathe if needed.
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Some pieces are made smooth using a Planer.
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Then, they are cut into the required shapes using a Jig Saw, based on the brush design.
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Making Holes:
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The shaped wood is drilled with holes using a Drilling Machine.
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These holes are where the fibre will be placed.
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Preparing the Fibres:
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Fibres are cut to the required length (based on how long the brush bristles should be) using a Chisel and Hammer.
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Small bunches of fibres are tied together to form tufts.
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A G.I. (galvanized iron) wire is bent into a "U" shape and pressed at the center of the tuft using cutting pliers.
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Fixing the Tufts:
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The tufts are placed into the wood holes.
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The bent part of the wire is hammered in using a Punch and Hammer to fix the tufts tightly.
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All the holes are filled with fibre tufts.
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Finishing the Brush:
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The top part of the brush is trimmed using a Top Shearing Machine or Scissors.
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The whole brush is smoothed using a Belt Disc Sander Machine and then polished.
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Types of Wood Used for Brushes:
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Any wood can be used, but soft wood is easier and preferred.
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Common types include:
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Mango wood
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Pine
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Arana
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Kadampu
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Types of Brushes (Based on Use):
Brushes are made for different purposes and can be grouped into:
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Sanitary Brushes
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Industrial Brushes
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Domestic Brushes
Common Brush Types:
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Commode Brush
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Scrubbing Brush
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Banister Brush
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Form Cleaning Brush
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Floor Sweeping Brush
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Boot Polishing Brush
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Table Cleaning Brush
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Hair Brush
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Bottle Cleaning Brush
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Basin Cleaning Brush
1. Lavatory Brush:
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This brush is used for cleaning toilets.
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The coir fibre is made to stand up in a circle at one end of a wooden stick.
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The wooden stick is 45 cm (18 inches) long.
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The diameter (thickness) of the stick is 4 cm (1.5 inches).
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The stick is divided into two parts:
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11 cm (4.5 inches) for the brush part (bristles)
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34 cm for the handle
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In the first 6 cm of the brush end, fibre tufts are packed very close together with no gaps.
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In the next 5 cm, fibres are placed in 4 rows around the stick.
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The height of the fibre sticking out is about 3 cm (1.25 inches).
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Good quality coir fibre is used for this brush.
This brush is used for cleaning toilets.
The coir fibre is made to stand up in a circle at one end of a wooden stick.
The wooden stick is 45 cm (18 inches) long.
The diameter (thickness) of the stick is 4 cm (1.5 inches).
The stick is divided into two parts:
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11 cm (4.5 inches) for the brush part (bristles)
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34 cm for the handle
In the first 6 cm of the brush end, fibre tufts are packed very close together with no gaps.
In the next 5 cm, fibres are placed in 4 rows around the stick.
The height of the fibre sticking out is about 3 cm (1.25 inches).
Good quality coir fibre is used for this brush.
2. Banister Brush:
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This brush is used in railways, automobile industries, and cotton mills to clean machines.
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The wood is shaped like a cylinder:
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5 cm thick and 23 cm long
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A part of 12 cm is made thinner.
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After shaping, the flat surface is drilled with holes to fix the fibre.
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The fibre tufts are fixed in 4 rows.
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Each fibre tuft is about 7 cm long.
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This brush uses second-quality fibre.
This brush is used in railways, automobile industries, and cotton mills to clean machines.
The wood is shaped like a cylinder:
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5 cm thick and 23 cm long
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A part of 12 cm is made thinner.
After shaping, the flat surface is drilled with holes to fix the fibre.
The fibre tufts are fixed in 4 rows.
Each fibre tuft is about 7 cm long.
This brush uses second-quality fibre.
3. Floor Sweeping Brush:
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This brush is used for sweeping floors.
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It has a long stick, about 140 cm long.
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The wooden block that holds the fibre is:
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30 cm long
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5 cm wide
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4 cm thick
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The fibre tufts stick out about 8 cm from the holes.
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Since the fibres are long, good-quality fibre is used for this brush.
This brush is used for sweeping floors.
It has a long stick, about 140 cm long.
The wooden block that holds the fibre is:
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30 cm long
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5 cm wide
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4 cm thick
The fibre tufts stick out about 8 cm from the holes.
Since the fibres are long, good-quality fibre is used for this brush.
4. Table Cleaning Brush:
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The wood size is 35 cm long, 4 cm wide, and 1.5 cm thick.
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The part covered with fibre is 23 cm long.
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The height of the fibre (pile) is 6 cm.
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Third-quality fibre is used.
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This brush is used for cleaning tables and flat surfaces.
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It is also used to clean workshop equipment.
5. Bottle Cleaning Brush:
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This brush is used to clean bottles.
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It is made differently from other brushes.
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Fibre is placed between two G.I. wires, which are then twisted together.
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The brush part is about 10 cm long.
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The fibre sticks out about 2 cm from the center to the edge.
6. Scrubbing Brush:
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The wood for this brush is not turned on a machine.
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The wood is planed and then cut to shape using a Jig Saw.
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Fine quality coir fibre is usually used.
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Sometimes, Palmyra fibre is better because scrubbing needs a rough brush.
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This brush is used to scrub floors and bathrooms while washing.
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The wood base size is 25 cm long, 8 cm wide, and 2 cm thick.
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The fibre sticks out 2.5 cm from the base.
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The brush is made in different shapes based on the type of cleaning work.
7. Form Cleaning Brush:
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Used to clean press forms.
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Smaller in size.
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Designed for easy hand grip.
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Wood base size: 20 cm × 10 cm × 2 cm.
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Fibre projects 2.5 cm from the base.
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Made with fine quality fibre.
8. Boot Polishing Brush:
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Used for polishing boots.
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Made from horsehair or cattle hair.
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Wood base size: 16 cm × 8 cm × 2 cm.
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Fibre projects 2 cm from the base.
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Soft coir fibre is also used.
9. Hair Brush:
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Used to clean hair after a haircut.
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Has a handle for easy use.
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Wood base size: 19 cm × 7.5 cm × 2 cm.
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Fibre used: nylon, horsehair, cattle hair, or soft coir fibre.
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Fibre projects 2 cm from the base.
10. Basin Cleaning Brush:
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Used to clean basins.
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Similar to the form cleaning brush but slightly different in size.
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Wood base size: 17.5 cm × 7.5 cm × 2 cm.
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Fibre projects 2.5 cm from the base.
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Made with fine quality fibre.
✅ Main Questions and Answers – Brushes and Fibres
SECTION 1: GENERAL KNOWLEDGE
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Q: What are the essential properties of fibres used in brush making?
A: They must be stiff but not brittle and should possess a high degree of flexibility. -
Q: Why are brush fibres classified separately from other fibres?
A: Because they require unique properties like stiffness, flexibility, and durability not found in general-purpose fibres. -
Q: On what basis is a particular fibre selected for brush making?
A: Based on the purpose or function of the brush. -
Q: Name any five common fibres used for brush making in India.
A: Coir, Jute, Palmyra, Sisal, and Aloe. -
Q: Name three animal hairs used in brush making.
A: Cattle hair, horse hair, pig hair. -
Q: What are Mexican fibres?
A: Fibres such as Bass, Kittool, Palmetto, and Pita mostly imported from Mexico and used in limited quantities. -
Q: Name any two Mexican fibres.
A: Bass and Kittool.
SECTION 2: HARD & SOFT FIBRES
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Q: Name two hard fibres used in brushes.
A: Coir and Palmyra. -
Q: What are hard fibres used for in brush making?
A: For scrubbing, sweeping, floor cleaning, and sanitary uses. -
Q: Name three soft fibres used in brushes.
A: Horse hair, cattle hair, and pig hair. -
Q: What are soft fibres used for in brushes?
A: For shaving brushes, painting brushes, shoe polishing, and hair brushes.
SECTION 3: PALMYRA FIBRE
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Q: What is the source of Palmyra fibre?
A: The Palmyra palm tree with fan-shaped leaves. -
Q: In which countries is Palmyra fibre commonly found?
A: India, Sri Lanka, and Burma (Myanmar). -
Q: Describe the appearance of Palmyra fibre.
A: Brown, long, and stiff. -
Q: How is Palmyra fibre collected?
A: The leaf stalk is crushed, soaked, beaten, separated, and sun-dried. -
Q: What are the grading categories of Palmyra fibre?
A: Short, medium, and long. -
Q: What is the typical length range of Palmyra fibre?
A: 9 to 18 inches (22.25 cm to 45 cm).
SECTION 4: SISAL FIBRE
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Q: From which plant is sisal fibre obtained?
A: Agave sisalana. -
Q: What is another name for sisal?
A: Sisal hemp. -
Q: Where did the sisal plant originate?
A: Southern Mexico. -
Q: Name any four products made from sisal.
A: Rope, twine, carpets, hats. -
Q: What is the colour of sisal fibre?
A: Shiny (lustrous) and white. -
Q: How is sisal fibre extracted?
A: By crushing and scraping the leaves, then washing and drying. -
Q: What percentage of the leaf becomes usable fibre?
A: About 4%. -
Q: What is the length of sisal fibre?
A: 80 to 120 cm. -
Q: Is sisal flexible?
A: No, it is coarse and not flexible. -
Q: What are the three grades of sisal fibre?
A: Low, medium, and high grade. -
Q: What is high-grade sisal used for?
A: Yarn for carpets. -
Q: Which country is the largest producer of sisal?
A: Brazil.
SECTION 5: COIR FIBRE PROCESSING
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Q: What type of coir fibre is used for brushes?
A: Long bristle fibre. -
Q: What is the purpose of combing coir fibre?
A: To remove pith and align the fibres. -
Q: What tool is used to comb coir fibre?
A: Upright nails fixed on a flat wooden board. -
Q: What is the first step in making a coir brush?
A: Cutting wood with a Band Saw. -
Q: How are holes made in the wood block?
A: Using a Drilling Machine. -
Q: How are fibres secured into the holes?
A: With U-shaped G.I. wire, hammered with a punch. -
Q: How is the brush trimmed?
A: Using a Top Shearing Machine or scissors. -
Q: Name two machines used in shaping or smoothing the brush.
A: Wood Turning Lathe and Belt Disc Sander Machine.
SECTION 6: TYPES OF WOOD USED
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Q: Why is soft wood preferred for brushes?
A: It is easier to work with. -
Q: Name any two types of wood used for brush handles.
A: Mango wood and Pine.
SECTION 7: TYPES OF BRUSHES
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Q: Name three categories of brushes based on use.
A: Sanitary, Industrial, and Domestic. -
Q: What fibre is used in a Lavatory Brush?
A: Good quality coir fibre. -
Q: What is the handle length of a Lavatory Brush?
A: 45 cm (18 inches). -
Q: What is the use of a Banister Brush?
A: Cleaning machines in railways and industries. -
Q: What quality of fibre is used in Banister Brushes?
A: Second-quality fibre. -
Q: What is the fibre length in Floor Sweeping Brushes?
A: 8 cm. -
Q: Which brush uses third-quality fibre?
A: Table Cleaning Brush. -
Q: How is a Bottle Cleaning Brush made differently?
A: Fibre is twisted between two G.I. wires. -
Q: What is the brush part length in a Bottle Cleaning Brush?
A: 10 cm. -
Q: Which fibre is better for Scrubbing Brushes — coir or palmyra?
A: Palmyra (for rough scrubbing). -
Q: What fibres are used in Boot Polishing Brushes?
A: Horsehair or cattle hair.
✅ Main Questions and Answers – Brushes and Fibres (Continued)
SECTION 8: SPECIFIC BRUSH DIMENSIONS & DETAILS
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Q: What is the wood base size of the Floor Sweeping Brush?
A: 30 cm long, 5 cm wide, and 4 cm thick. -
Q: What is the total length of the stick in the Floor Sweeping Brush?
A: 140 cm. -
Q: What quality of fibre is used in the Floor Sweeping Brush?
A: Good-quality long coir fibre. -
Q: What is the fibre projection length in the Table Cleaning Brush?
A: 6 cm. -
Q: What is the size of the Table Cleaning Brush base?
A: 35 cm × 4 cm × 1.5 cm. -
Q: What is the fibre-covered portion length in the Table Cleaning Brush?
A: 23 cm. -
Q: Where is the Table Cleaning Brush commonly used?
A: On tables and for cleaning workshop equipment. -
Q: What is the fibre projection in the Bottle Cleaning Brush?
A: 2 cm from the center to the edge. -
Q: How long is the brush part of the Bottle Cleaning Brush?
A: About 10 cm. -
Q: What makes the Bottle Cleaning Brush construction different from others?
A: Fibre is placed between two G.I. wires and twisted together. -
Q: What is the size of the wood base for the Scrubbing Brush?
A: 25 cm × 8 cm × 2 cm. -
Q: What is the fibre projection in the Scrubbing Brush?
A: 2.5 cm. -
Q: Which fibre may be preferred over coir for Scrubbing Brushes?
A: Palmyra fibre. -
Q: What is the main use of the Scrubbing Brush?
A: Scrubbing floors and bathrooms. -
Q: What is the wood base size of the Form Cleaning Brush?
A: 20 cm × 10 cm × 2 cm. -
Q: How much does the fibre project from the Form Cleaning Brush?
A: 2.5 cm. -
Q: What is the Form Cleaning Brush used for?
A: Cleaning press forms. -
Q: What is the wood base size of the Boot Polishing Brush?
A: 16 cm × 8 cm × 2 cm. -
Q: What is the fibre projection in the Boot Polishing Brush?
A: 2 cm. -
Q: Name two types of fibre used in Boot Polishing Brushes.
A: Horsehair and cattle hair. -
Q: What is the size of the Hair Brush?
A: 19 cm × 7.5 cm × 2 cm. -
Q: What kind of handle does the Hair Brush have?
A: A handle for easy use. -
Q: Name two fibres used in Hair Brushes.
A: Horsehair and soft coir fibre. -
Q: What is the fibre projection in the Hair Brush?
A: 2 cm. -
Q: What is the use of the Hair Brush?
A: Cleaning hair after a haircut. -
Q: What is the wood base size of the Basin Cleaning Brush?
A: 17.5 cm × 7.5 cm × 2 cm. -
Q: What is the fibre projection in the Basin Cleaning Brush?
A: 2.5 cm. -
Q: What type of fibre is used in the Basin Cleaning Brush?
A: Fine quality fibre.
SECTION 9: MACHINES AND TOOLS USED
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Q: Name the machine used to cut large wood logs.
A: Band Saw. -
Q: Which machine is used to shape cylindrical wooden handles?
A: Wood Turning Lathe. -
Q: What is used to cut fibre tufts to length?
A: Chisel and Hammer. -
Q: How are the fibres fixed into brush holes?
A: Using U-shaped G.I. wire and a punch. -
Q: What tool is used to make holes in the wood base?
A: Drilling Machine. -
Q: What machine is used to smooth and polish the brush?
A: Belt Disc Sander. -
Q: How is the top of the brush trimmed?
A: Using a Top Shearing Machine or scissors.
SECTION 10: FIBRE CHARACTERISTICS COMPARISON
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Q: Which is coarser — sisal or coir?
A: Sisal is coarser. -
Q: Which is more flexible — palmyra or sisal?
A: Palmyra is more flexible. -
Q: Which fibre is best for delicate brushes like painting or shaving?
A: Animal hair (e.g., horsehair). -
Q: Which brush would need a fibre with high water resistance?
A: Sanitary or scrubbing brushes (e.g., coir or palmyra). -
Q: Which fibre is soft, absorbent, and used for boot polishing?
A: Horsehair or cattle hair.
SECTION 11: INDUSTRY AND GEOGRAPHY
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Q: Name three top sisal-producing countries.
A: Brazil, Mexico, China. -
Q: Why is Brazil the largest sisal producer?
A: Due to suitable semi-arid conditions and large-scale farming. -
Q: What is the annual sisal fibre production in Brazil?
A: Around 130,000 tons. -
Q: What is the role of sisal in the paper industry?
A: Low-grade sisal is used due to high cellulose content. -
Q: Which grade of sisal is used for carpet yarn?
A: High-grade sisal fibre. -
Q: What grade of fibre is used for table cleaning brushes?
A: Third-quality fibre. -
Q: Which fibre resists saltwater damage?
A: Sisal. -
Q: Which fibre is double brushed after drying?
A: Sisal fibre. -
Q: Which fibre takes dye well and is suitable for colourful products?
A: Sisal. -
Q: What is the fibre yield from a sisal leaf (by weight)?
A: Only about 4% of the leaf’s weight becomes usable fibre.