Method of laundry washing
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United States of America Patent
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-
Jan 13, 2009
Grant Date -
Jul 7, 2005
app pub date -
Dec 9, 2004
filing date -
Dec 11, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention provides a method of washing a laundry fabric in a wash liquor in a washing machine, wherein during a single wash cycle no more than 10% by weight of the wash liquor is drained from the washing machine, wherein the method comprises the step of varying the ionic strength of the wash liquor over at least 10% of the duration of the wash cycle by addition of one or more ionic ingredients to the wash liquor, and wherein the lowest ionic strength of the wash liquor is from 0.001 to 0.06 M and the highest ionic strength of the wash liquor is from 0.01 to 0.5 M.
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