When different fibres of the same or different grades are kept together, then it is called blending.
Types of Blending?
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Blending type
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Process stage
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Bale mixing
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Before the blow room
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Flock blending
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Within the blow room
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Lap blending
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By using scutchers
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Web blending
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At the ribbon-lap machine or the blending draw frame
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Sliver blending
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At the draw frame, lap former or the comber
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Fibre blending
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At the card or the OE-spinning machine
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Roving blending
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At the ring-spinning machine
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For example, Siro and Jaspe yarns are produced by roving blending as shown below-
What are the reasons for fibre blending?
- To facilitate processing.
- To improve properties like dimensional stability.
- To produce better performance.
- To improve texture, hand or feel the appearance of fabrics.
- To produce multi-colour fabrics.
- To reduce cost.
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