Technological Changes Due to Sizing
Friday, May 18, 2012
10:10 PM
Why Sizing is Called the Heart of Weaving? | Technological Changes Due to Sizing | Effects of Sizing on Yarn Properties
becomes lower. To prevent this problem sizingis done. Sizing gives a protective coating on yarn surface to tolerate the friction on loom machine. The size yarn may reduce the yarn breakage & yarn rupture during weaving process. As a result, fabric quality becomes better & production becomes higher.
- Increasing in breaking strength: Inter fibre bonding system during increase the strength of yarn. It increases the breaking strength up to 20-40%.
- Increase abrasion resistance: After sizing the gap between fibres are filled with size & coating on the outer surface of the yarn takes place.
- Increase in stiffness: In sizing process stiffness of yarn is increased.
- Increase in elasticity: Due to sizing the extensibility of sized yarn decreased, more force has to be applied to extent the yarn. Hence elasticity increases.
- Increase frictional resistance: Hairs protruding from one yarn in the warp do not entangled with the hairs protruding from a neighboring yarn. It occurs because of sizing. Hence smoothness of the outer surface of the yarn increases. As a result less friction takes place.
- Increase in yarn diameter: Application of sizing material on the warp yarn i.e. adhesive coating of the yarn increase the diameter of the yarn.
- Decrease in extension: After sizing the gap between the fibres is filled by the size material hence the slippage between the fibres does not take place. So the extension in decreased.
- Decrease in electrostatic charge: Due to friction between yarn & roller electrostatic charge is formed. But the application of size material reduces the friction hence electrostatic charge formation is decreased.
- Decrease hairiness: Application of size material on the yarn parallelizes the protruding fibre with the yarn axis so yarn hairiness decreases.
- Decrease yarn irregularity: Sizing process makes the projecting fibre to adhere together. Hence yarn irregularity decreases.
Effects of Sizing on Yarn Properties
The following properties of yarn are affected by sizing:
The following properties of yarn are affected by sizing:
- Yarn elasticity.
- Yarn strength.
- Hairiness of yarn.
- Flexibility of yarn.
- Smoothness of yarn.
- Irregularity of yarn.
- Yarn diameter.
- Yarn weight.
Label :
sizing
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Textile Technology: Why Sizing is Called the Heart of Weaving? | Technological Changes Due
to Sizing | Effects of Sizing on Yarn Properties
becomes lower. To prevent this problem sizingis done. Sizing gives a protective coating on yarn surface to tolerate the friction on loom mac...
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