Compositions useful as rinse cycle fabric softeners
View Patent ↗Compositions and methods of treating textiles are disclosed. More specifically, stable compositions and methods for softening a wide range of fabrics are disclosed, including 100% cotton and hydrophobic synthetic fabrics, without detrimentally affecting the water absorbency properties of the fabrics. The compositions may contain at least one fatty material and at least one polyorganosiloxane.
1. A composition, comprising:
a. at least one fatty material; and
b. at least one water-soluble or water-dispersible polyorganosiloxane having substituents;
wherein said fatty material is:
i. a fatty acid quaternary ammonium compound having ester functionality;
ii. a fatty acid quaternary ammonium compound having amide functionality;
iii. a fatty acid alkoxylated quaternary ammonium compound;
iv.
v. an alkylmethyl quaternary ammonium compound;
vi. an amido alkoxylated quaternary ammonium compound; or
vii. quaternized amido imidazoline; and
wherein said polyorganosiloxane is present at a level of at least about 35% by weight, based on the total weight of said fatty material and said polyorganosiloxane;
wherein said substituents comprise at least about 10% by weight, based on the total weight of said substituents, of non-terminal hydroxyl groups.
2. The composition of claim 1 , wherein said polyorganosiloxane has a melting point less than about 38° C.
3. The composition of claim 1 , wherein said polyorganosiloxane does not contain nitrogen.
4. The composition of claim 1 , wherein said fatty material is:
i. a fatty acid quaternary ammonium compound having amide functionality; or
ii. a fatty acid alkoxylated quaternary ammonium compound.
5. An aqueous composition, comprising:
a. water; and
b. the composition of claim 1 .
6. The aqueous composition of claim 5 , wherein the composition is in the form of an emulsion or suspension.
7. A method of treating a textile, comprising the step of contacting said textile with a composition comprising:
a. at least one fatty material; and
b. at least one water-soluble or water-dispersible polyorganosiloxane having substituents;
wherein said fatty material is:
i. a fatty acid quaternary ammonium compound having ester functionality;
ii. a fatty acid quaternary ammonium compound having amide functionality;
iii. a fatty acid alkoxylated quaternary ammonium compound;
iv.
v. an alkylmethyl quaternary ammonium compound;
vi. an amido alkoxylated quaternary ammonium compound; or
vii. quaternized amido imidazoline; and
wherein said polyorganosiloxane is present at a level of at least 35% by weight, based on the total weight of said fatty material and said polyorganosiloxane;
wherein said substituents comprise at least 10% by weight, based on the total weight of said substituents, of non-terminal hydroxyl.
8. The method of claim 7 , wherein said polyorganosiloxane has a melting point less than about 38° C.
9. The method of claim 7 , wherein said polyorganosiloxane does not contain nitrogen.
10. The method of claim 7 , wherein said fatty material is:
i. a fatty acid quaternary ammonium compound having amide functionality; or
ii. a fatty acid alkoxylated quaternary ammonium compound.
11. The method of claim 7 , wherein said textile is made from hydrophilic fibers, hydrophobic fibers or a combination thereof.
12. The method of claim 7 , wherein said composition is added to the rinse water in the laundering process.