Liquid fabric softener
View Patent ↗A liquid fabric softener composition is provided which includes a texture enhancing component, such as a long chain difatty acid, that is deposited on a fabric during laundering, the deposited enhancing component changing the “feel” of the fabric. Preferably, the deposited enhancing component substantially detaches from the fabric in subsequent laundering cycles to reduce build-up. The enhancing component is preferably water-insoluble in an acidic pH, such as during the rinse cycle occurring after washing fabrics with a detergent, yet water soluble in an alkaline medium enabling the deposited enhancing component to be detached from fabric in subsequent “wash” cycles.
1. A liquid fabric softener comprising: a long chain difatty acid wherein said long chain difatty acid is water insoluble in an acidic pH and soluble in an alkaline medium, and wherein said long chain fatty acid is not present in a complex with a tertiary amine; a cationic softener; and water.
2. The liquid fabric softener of claim 1 , wherein said long chain difatty acid has at least 18 carbon atoms.
3. The liquid fabric softener of claim 1 , wherein said long chain difatty acid is a liquid monocyclic C-21 dicarboxylic acid.
4. The liquid fabric softener of claim 1 , wherein said long chain difatty acid is present in an amount of from about 0.1% to about 40% by weight of the composition.
5. The liquid fabric softener of claim 1 , wherein said cationic softener is a quaternary ammonium compound or an alkylimidazolinium salt.
6. The liquid fabric softener of claim 1 , wherein said cationic softener is present in an amount of from about 0 to about 30% by weight of the composition.
7. The liquid fabric softener of claim 1 , further comprising one of a fragrance, dye, salt, antifoam agent, and combinations thereof.
8. The liquid fabric softener of claim 1 , further comprising no polysiloxanes.