Concept:
During wool processing, raw wool obtained from sheep contains impurities such as grease (lanolin), dirt, sweat, and dust. These impurities must be removed before further processing.
The cleaning process used to remove these impurities is called Scouring.
Step 1: Understand Scouring.
Scouring is the process of washing raw wool in warm water with detergents or alkaline solutions to remove:
- Grease (lanolin)
- Dirt and dust
- Sweat and other impurities
Step 2: Differentiate from other wool processing steps.
- Shearing – Cutting the fleece from the sheep.
- Carding – Straightening and aligning the wool fibers.
- Spinning – Twisting fibers together to form yarn.
Step 3: Conclusion.
Since the process described involves washing wool to remove grease and dirt, it is known as:
\[
\text{Scouring}
\]