Superwash

Moisture Measurement & Control

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The Superwash process is an application that has special requirements to which the control system must conform to ensure the product quality is maintained to the desired level.
Streat Instruments Moisture Measurement and Control systems have been applied to Superwash Plants around the world and we were involved with the initial Superwash development at the IWS and then the Woolmark Company.
Jimmy Jackson*, widely regarded as the expert in the area of easy-care wool products and processes, recommends Moisture Measurement and Control for Superwash Lines as detailed below:

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Moisture management & control is important in the
Superwash process to save energy and control the
regain in the sliver so that subsequent mechanical
processing is trouble free, and also maintain good
wool colour etc.

The additional advantages for a Superwash plant
are ensuring that the resin is evenly and constantly
cured. (i.e. If the Superwash wool is still wet or
damp, and hence the resin is not fully cured, then
curing will take place later in the bale after packing
resulting in the fibres sticking together and the
customer receiving hard tops, which will need to be
backwashed at additional expense before
mechanical processing).

Resin curing also impacts the dyeing properties of
Superwash wool. As the resin cures it loses its
cationic charge and becomes neutral. However if
there are some damp patches then in these areas
the resin will remain cationic charged and attract
the anionic dyestuff (all wool dyestuffs irrespective
of type are anionic) more rapidly. In essence if there
is uneven curing then it’s more than likely the
dyeing will be uneven.

DRYCOM Moisture Sensors on
Superwash Sliver at the Dryer Exit

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The Streat DRYCOM Moisture Measurement & Control system continuously monitors the moisture content of the sliver and regulates the energy supply to the dryer to maintain the moisture at the desired level.

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Water Wizardry

 

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Streat DRYCOM Moisture Measurement and Control systems provide total solutions for your process.

  • Increased profits
  • Increased productivity
  • Elimination of re-processing
  • Improved downstream processing
  • Improved and consistent product quality
  • Reduced energy consumption
  • Ensures optimum drying level for future processing and ensures adequate resin curing
  • Fewer claims from customers
  • Better deployment of labour to other vital tasks
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Translated Document DC-015-01C – Superwash – Chinese

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