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Wool

An overview of the fibre wool and its sustainability.
by

Rosie Sciacca

on 10 October 2012

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Transcript of Wool

An overview of the fibre and its sustainability FIBRE PROFILE: WOOL What Is
Wool? What are the
characteristics
& properties
of wool? What are some
suitable uses
for wool? How Does Wool
Go From Fibre
To Fabric? Why is wool
considered to be
a sustainable
fibre? Wool is natural fibre obtained from sheep and certain other animals, including cashmere from goats, mohair from goats, qiviut from muskoxen, vicuña, alpaca, camel from animals in the camel family, and angora from rabbits.[1] Whilst wool comes from animals, it is quite different to furs and hair products. Wool has several qualities that distinguish it from hair or fur: it is crimped, it is elastic, and it grows in staples (clusters). The uniqueness of wool lies in the structure of its fibres, which absorb moisture, insulate against heat and cold, resist flame and maintain their resilience. It is these characteristics which make it versatile - it is able to be used for many functions. Unique & Versatile Wool fibres:
are natural staple fibres

are made of multi cellular protein

have a matte appearance

are crimped or wavy (the more crimps per centimetre, the finer the wool)

can be white to light cream in colour Physical Characteristics The microscopic appearance of wool fibres shows that the fibres exhibit overlapping surface cells called "scales". These scales give wool a type of serrated surface with each scale having its own direction. It is this scale structure that gives wool its felting capabilities (directional friction effect). Microscopic
Appearance When discussing fibre properties, the following terms are used: Because wool is such a versatile fibre, it can be used for a wide-range of clothing and textiles objects. Consider some good examples and list / sketch these into your process journal. Woven Fabrics Fabric Yarn Fibre Knitted Fabric Felted Fabric 1) It is RENEWABLE - the animal's hair will grow back, therefore the animal can be reused every year.

2) It is BIODEGRADABLE - it easily breaks down and does not linger like some other fibres.

Research further @ http://www.merino.com/en/our-fibre/environment Information for this presentation was sourced from the following book:

Castle, C. & Peters, L. 2007. Textiles and Design: Preliminary and HSC. Sydney: Nelson Australia Pty Ltd. More about fibre properties @ http://www.merino.com/en/our-fibre/unique-properties Wool is considered sustainable for 2 key reasons. Spin Yourself A Yarn 1) Comb the wool 2) Twist A Bundle of Fibres 3) Change The Amount of Twist 4) Test for Strength Comb the wool to make the fibres parallel Take a small amount of fibres and begin to twist them in one direction. Pull out the yarn as you twist. Try changing the amount of twist you give to the fibres. If you twist them more tightly what happens? Look at your yarn. Are there differences in the strength of your yarn where the twist is different? Ply Ply is the thickness of the yarn. Eg 8 ply wool is thicker than 2 ply as it contains 8 threads twisted together rather than 2 threads.
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