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445962

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Name all Bast Fibres

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Name All Types Of Fibres In the Cellulose (Vegetable) Family

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Name all types of Animal (Protein Fibres)

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Name all Polyvinyl Fibre Derivatives

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What is a Staple Fibre

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Explanation

Fibres are short and filaments are long • All natural materials (except silk) occur as fibres. • All man-made and synthetic materials and silk are extruded as filaments. They can be used as filaments or broken down into fibres, sometimes known as ‘staple fibres’

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Fill In The Blanks

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A ‘microfibre’ is a

of less than

(but some commercial manufacturers call fibres up to

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1. What physical property of fibres most determines its ‘next to skin’ comfort?

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Why Are Fibres Blended Together?

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Explanation

Note that fibres may be, and commonly are, blended to obtain a combination of properties not available in a single fibre. • A ‘blend’ is where the fibres are mixed together before spinning into a yarn, therefore fibres must be of similar length to be blended properly.

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What are common blend Ratios?

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Why is it important that fibres are blended in appropriate proportions?

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446051

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How is the elasticity, fit and comfort of knitted and woven fabrics Improved?

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Name all fire properties

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Name of Fabric Properties

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Fill In The Blanks

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A ‘fine fibre’ will be less than

; medium =

; course fibres are thicker than

The symbol µ =

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Fibre fineness is a key quality

Finer fibres are

and

Fineness is normally measured (particularly for natural fibres) as the

of the fibre measured in

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