Click Here to Download Free E-books

Wool Fibre | Identification & Application of Wool fibre | Part 01 | Textile Study Center
Home Yarn Engineering Introduction to Textile Wool Fibre | Identification & Application of Wool fibre | Part 01

Wool Fibre | Identification & Application of Wool fibre | Part 01

903
0
Md. Rakibur Rahman
Studies Yarn Engineering. (Batch-43) at BUTEX | Former Member at Dhaka College Science Club (DCSC) | Studied at Dhaka College | Studied to Matuail Bahumukhi High School
Md. Rakibur Rahman

Part 02: Wool Fibre | Manufacturing Process of Wool Fibre

Part 03:Wool Fibre Morphology | The Macro Structure of Wool

Part 04: Physical & Chemical Properties of Wool Fibre

Wool Fibre | Wool Fibre Identification | Uses & Application of Wool fibre


Wool Fibre

Wool is the natural protein fibre obtained from sheep and certain other animals, including cashmere from goats, mohair from goats, angora from rabbits, and other types of wool from camel. It is a multi-cellular, staple fibre. The density of fibre is 1.31g/cc, which is tends to make wool a medium weight fibre.

Wool Fibre | Main wool producing countries | Manufacturing Process of Wool Fibre | Shearing | Skirting | Grading | Wool Grading Systems | The Micron System | English wool sorting | Sorting the Merino fleece | Spanish sorting | Bailing of wool | Wool Fibre Morphology | Micro structure of wool fibre | Chemical Composition of Wool Fibre | Elements in wool protein | Chemical Bonds of Wool | Physical properties of wool | Chemical properties of wool | Wool Fibre Identification | Physical test of Wool Fibre Identification | Chemical Test of Wool Fibre Identification | Difference Between Silk & Wool | Uses & Application of wool fibre | End uses of wool fibre | Textile Study Center | textilestudycenter.com

Fig: Source of Wool Fibre



 Main Wool Producing Countries

The world’s leading animal fibre, wool is produced in about 100 countries on half a million farms. Major wool producers are Australia, Argentina, Canada, China, Chile, France, the Islamic Republic of Iran, New Zealand, Russia, South Africa, Turkey, the United Kingdom, and Uruguay etc.

Here is the list of top 10 wool producing countries in the world 2015.

Rank Country Name Production (tonnes)
1  Australia 478,492
2  China 235,927
3  USA 150,875
4  New Zealand 102,457
5  Argentina  88,897
6 Turkey  74,394
7 Iran 56,990
8 UK 49,623
9 India 31,783
10  Sudan 20,739

 Wool Fibre Identification

Physical test

The flame is steady but more difficult to keep burning. The smell of burning wool is like burning of hair.


Chemical test

Wool fibre dissolves in concentrated

  1. Sodium hydro – oxide
  2. Sodium hypo – chloride
  3. Slowly dissiolves in Nitric acid 70%.

 Uses & Application of Wool Fibre

Wool is extensively used in textile applications where comfort and aesthetics are important. Some uses and application of wool fibre are given below –

Wool fibre used for clothing, blankets, insulation and upholstery.

 It is used in men’s and women’s apparel, outer wear and cold weather clothing, suits, blankets, felts and carpeting.

 It is often used in blends with cellulosic and man-made fibres.

 It is also used for absorb noise of heavy machinery and stereo speakers.

 As an animal protein wool, can be used as a soil fertilizers, being a slow release source of nitrogen.  

 End uses of wool fibre

Alpaca fibres are used for many purposes, including making clothing such as hats, mitts, scarves, gloves. And jumpers. Rugs and toys can also be made from alpaca fibres. Alpaca fleeces is generally used only in the expensive luxury items of textile and apparel

Lama fibres are used in expensive knitted fabrics, jackets, over – coats, and blankets.

Camel hair is used for outer wear and used for under linings

Cashmere is used in luxury applications where a soft, warm, fine fibre with beautiful drape is desired.

Mohair is used for outer – wear.

 Difference Between Silk & Wool Fibre 

Subject

Silk

Wool

Composition

  It has carbon, hydrogen, oxygen and nitrogen. It is attacked by carpet beetles.

  It has hydrogen, carbon, Sulphur and nitrogen. It is harmed by moths and beetles

Elasticity

  It has extended poly peptide chains and is less elastic and resilient.

  It has folded poly – peptide chains and more elastic and resilient.

Strength

  It is very crystalline and is less absorbent.

  It has more amorphous areas and more absorbent.

Dimensional Stability

  It is a solid fibre.

  It has four parts in its fibre structure and therefore shrinks and felts.

Texture

  It is smooth. White silk is smoother and more lustrous.

  White wool fibre has crimp which is molecular. Therefore, wool is warmer and more resilient.

Length

  It is usually a filament and is smooth.

  It is staple fibre and is fuzzy.

Hydroscopic nature

  Since it has a very crystalline polymer system, it is less absorbent than wool.

  It is more absorbent.

Thermal properties

  It is more sensitive to heat.

  It is less sensitive to heat.

Effect of acids

  It is degraded more than wool because of absence of disulphide bonds, perspiration which is acidic will cause breakdown of silk polymer.

  It is degraded less than silk.

Part 02: Wool Fibre | Manufacturing Process of Wool Fibre

Part 03:Wool Fibre Morphology | The Macro Structure of Wool

Part 04: Physical & Chemical Properties of Wool Fibre



(903)

Md. Rakibur Rahman
Studies Yarn Engineering. (Batch-43) at BUTEX | Former Member at Dhaka College Science Club (DCSC) | Studied at Dhaka College | Studied to Matuail Bahumukhi High School
Md. Rakibur Rahman

Comments

comments

Powered by Facebook Comments