Blending
Usually blending refers to the mixing and combining two or
more than two fibres of different origins. For example cotton fibres with polyester.
The purpose of blending is to achieve desired properties of both the components
of the fibres in a yarn which otherwise is unobtainable from a single component
For example strength, crease resistance. colour, price, moisture absorption drying
properties, ete.
OBJECTS OF BLENDING
1. Blending influences the
reduction of the cost of the final product through blend composilion. availability
of fibres quality& inherent fibre property variations
2. It helps to improve
processing performance of the following process –
(i) Carding: Blending
influences the processing performance of carding through control of nep level
variation, waste level variation, fly, roving twist variation, m/c adjustment,
static electricity formation
(ii) Spinning: Blending
influences the processing performance of spinning through control of yarn twist
variation, end breakage, m/c adjustment etc.
iii) Warping & weaving: Blending influences the processing performance of warping & weaving through control of end break m/c adjustment etc.
iii) Warping & weaving: Blending influences the processing performance of warping & weaving through control of end break m/c adjustment etc.
(iv) Dyeing & finishing: Blending influences the behavior of dyeing& finishing through
control of shrinkage variation, dyeing defects etc
3. Blending influences
(i) Aesthetic properties: It influences to increase luster, Appearance, cover,
color etc.
(ii) Subjective properties: It increases comfort & the properties like
handlings, touch, softness etc
4. It helps to meet function
& end used requirements
5. It helps to achieve effect by carrying
color, fibre characteristics & so on