What is starch on clothes ? Write 5 rules for applying starch.
Answers
Answer:
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Explanation:
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Explanation:
Starch is found in many plants and is the form in which food is stored for future use, just as animals store
fat for use in leaner times.
With rice, wheat & maize, the major sources of laundry starch, the starch is stored in a dry form in the
seeds or ears of the plant and is converted to sugars for energy when the seed germinates in wet soil. With
potatoes and other plants, starch is stored in the root.
When manufacturing starch the source plants are treated to remove all other materials such as husks,
proteins and other impurities which would hamper performance in the laundry environment.
Dry feed to machine
This is the least desirable as it can clog the hopper of a washer extractor and may not disperse well inside
the machine, depositing lumps of starch on the linen which can show up as surface starch after finishing.
Creamed in a bucket
The starch is creamed with a little cold water in the bottom of a bucket by stirring with a stick or hand. It is
then topped up with water and added to the machine. Cheaper, non blended starches are more difficult to
cream than blended lubricated starches and they also settle very quickly after mixing in buckets or tanks.
Mixed in a stock tank
A full 25kg bag of starch is usually mixed in a tank at a maximum concentration of 12.5% (this would
represent 25kg in 200litres). This must be agitated continuously to prevent the starch settling out and
clogging pipes. This is the method used on batch tunnel washers.
Some smaller oper