Scouring
 A stockful being washed in a machine. A worker in an apron
supervises and guides the blanket into a white plastic trolley.
Witney Mill, 2002.
Scouring involves cleaning the woven blanket of the dirt and
grease accumulated during the previous production processes.
This is the first stage of the scouring and milling processes.
There are two ways of doing it, using either a combined
scouring/milling machine or two different machines, one for
scouring and one for milling.
Firstly the complete stockful will be fed into the scouring
machine and the two ends sewn together so as there is one
continuous length of blanket. In this machine there are two
tension rollers that the stockful has to run through. The first
treatment in this machine is to wet the cloth with a solution of
sodium carbonate, this converts the oil that was sprayed on
during the willeying process into soap which will remove all the
dirt and grease from the cloth. After a while warm water is
added, a lather is worked up and the cloth is washed for about
30 minutes. The drain is now opened in the machine for the soapy
water to escape and clean cold water is sprayed onto the cloth
to remove all traces of soap.
Mike French
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