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P&G Patents Fabric Softener Manufacturing Method

Published February 4, 2013
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US Patent No. 8,067,353 B2; The Procter & Gamble Company has patented a method of making a fabric softening composition that comprises the following steps: feeding an aqueous composition comprising a fabric softening active through a dynamic orifice comprising a valve, wherein the valve is in a fixed first position; changing the position of the valve from a first position to a second position; and feeding the composition through the dynamic orifice while the position of the iris valve is changed from the first position to the second position.

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