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US 5,700,387 AGranted
Fabric softening composition
AssigneeLever Brothers Company, Division of Conopco, Inc.
InventorsZiya Haq, Abid Nadim Khan-Lodhi, Philip John Sams
Life of this patent
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Abstract
Patent application that covers the concept of a conditioner sheet coated with a solubilised rinse conditioners comprising a fabric softening compound and a solubilising agent. The dryer sheets softens at low temperatures and is non-staining. The invention works particularly well with HEQ.
Claims12
A fabric softening composition for coating or impregnating a substrate comprising
- i) a substantially water insoluble fabric softening compound comprising a cationic head group and two alkyl or alkenyl chains each having an average chain length greater than or equal to or greater than C.sub.14 or a single alkyl or alkenyl chain with an average chain length greater than or equal to C.sub.20 ;
- and,
- ii) a solubilizing agent comprising a nonionic or amphoteric surfactant or mixture thereof and optionally a non-surfactant cosolubilizer;
- characterized in that the weight ratio of solubilizing agent (ii) to fabric softening (i) compound is greater than 1:6 and when the fabric softening composition is diluted in water to a concentration of 5 wt. % of (i) and (ii), at least 70 wt. % of the fabric softening compound is in solution.
1 more element
Dependencies are inferred from the claim text.