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 Wool fibres generally have a matte appearance so are not typically lustrous.  They are often blended with other fibres such as silk to increase lustre.

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Presentation on theme: " Wool fibres generally have a matte appearance so are not typically lustrous.  They are often blended with other fibres such as silk to increase lustre."— Presentation transcript:

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2  Wool fibres generally have a matte appearance so are not typically lustrous.  They are often blended with other fibres such as silk to increase lustre. LUSTRE

3 Drape  The drape of wool is exceptional, making it perfect for all types of apparel and furnishings.

4 Abrasion Resistance  The durability of wool is good. Abrasion resistance is moderate. This is due to the fibre's scale construction and excellent elasticity.

5 Strength  Wool fibres are weak, due to the fibre's highly amorphous structure. The coarser the wool diameter, the stronger the wool fibre

6 Absorbency  Wool is extremely absorbent and is therefore comfortable in most conditions. The absorbency is high due to the fibres amorphous regions

7 Elongation  The elongation of wool is excellent. When stress is placed on the fibres they elongate and when the pressure is removed the natural coils spring back into their original position.

8 Thermal Properties  Wool is considered to be a poor conductor of heat, so is known as a warm fibre. It possesses excellent insulation properties.  Wool does not burn; it has a self extinguishing property that makes it perfect for flame resistant cloth

9 Resiliency  Wool is a very resilient fibre; it resists wrinkling. Its ability to bounce back into shape makes it an ideal fibre to use for rugs and carpeting

10 Dimensional Stability  Wool has poor dimensional stability

11 Elasticity  Wool has excellent elastic recovery.

12 Effects of Chemicals  Wool does not soil readily. Wool is resistant to acids but is weakened by alkalis and is damaged by chlorine bleach.

13 Sun Resistance  The sun yellows wool over time and weakens the fibre.

14 Colour Fastness  Colour fastness in dyed wool is excellent, and wool is dyed readily due to its highly amorphous structure.

15 Shrink Resistance  Wool has poor shrink resistance. This property, combined with the scale structure of the wool fibre, create the fibre's ability to form felt.

16 Resistance to biological attack  Wool is not resistant to biological attack. In fact it is the perfect food source for moth larvae, which hatch and damage wool by feeding on the fibres.

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