Scouring is nothing more or less than a glorified washing. A machine closely akin to a gigantic laundry machine removes first the yolk or grease in an alkaline solution, and then rinses out the dirt and suint in a series of soap and water baths. The last bath is pure water, and from this the wool is taken on a belt through the drier. From the drier it is usually blown through tubes to the carding room.
Worsted carding Machine
Approximately 20% of the moisture is allowed to remain in the wool in order to facilitate subsequent processes. If the wool is still warm it is easier to card.
2. Carding
Opens Fibres
The purpose of the carding operation is to open out the fibres in the wool. Originally, carding was done by hand with two leather surfaces, much like butter pats, the inner faces of which were studded with wire nails. Between these two surfaces the wool was rubbed until all the fibres were opened out. In woolen manufacture carding is more violent and seeks to lay the fibres in all directions. Worsted carding aims to separate the fibres, but also to keep them as closely parallel as possible.
Woolen card. Feed end
