Workers in farms producing mulberry leaves for silkworm rearing centres and dyeing units are also at risk of developing asthma as they are exposed to pesticides, disinfectants and chemical dyes. Previous studies showed that some sericulture workers develop sensitisation to silkworm allergens over a period.

Why do silk workers suffer from asthma?
Silk workers often suffer from asthma due to the inhalation of silk dust and other particles during the processing of silk.

Processing Fibres into Wool (all steps)

Shearing
- The first step in processing wool is shearing the fleece from sheep or other animals.
- Shearing must be done carefully to avoid harming the animals and to obtain high-quality fleece.

Scouring
- The fleece is then washed to remove dirt, grease, and other impurities in a process called scouring.
- This step is essential to ensure the wool is clean and ready for further processing.

Carding
- Carding is the process of aligning the wool fibers to prepare them for spinning.
- This step helps to remove any remaining impurities and creates a smooth and consistent texture in the wool.

Spinning
- The carded wool fibers are then spun into yarn or thread.
- This step can be done using traditional spinning wheels or modern machinery depending on the scale of production.

Weaving or Knitting
- The spun yarn is then woven or knitted into fabric or garments.
- This step is where the wool is transformed into various products such as clothing, blankets, or carpets.

Finishing
- The final step in processing wool involves finishing techniques such as dyeing, pressing, or steaming.
- This step adds color, texture, and final touches to the wool products before they are ready for the market.
By following these steps carefully, high-quality wool products can be produced efficiently and sustainably.