The present invention provides a cleanser which is excellent in both of the foaming property and the cleansing capability. The cleanser comprises an organosiloxane derivative salt represented by the following formula (1) or (3) and one or more anionic surfactants selected from a group consisting of carboxylate salt with an alkyl group having 10 to 20 carbon atoms, sulfate salt with an alkyl group having 10 to 20 carbon atoms, sulfonate salt with an alkyl group having 10 to 20 carbon atoms, and phosphate salt with an alkyl group having 10 to 20 carbon atoms.
1. A cleanser comprising:
an organosiloxane derivative salt represented by following formula (1) or (3) and
one or more anionic surfactants selected from the group consisting of carboxylate salt with an alkyl group having 10 to 20 carbon atoms, sulfate salt with an alkyl group having 10 to 20 carbon atoms, sulfonate salt with an alkyl group having 10 to 20 carbon atoms, and phosphate salt with an alkyl group having 10 to 20 carbon atoms;
wherein in formula (1), at least one of R 1 to R 3 is a functional group represented by —O—Si(R 4 ) 3 in which R 4 is an alkyl group having 1 to 6 carbon atoms or a phenyl group, or a functional group represented by —O—Si(R 5 ) 2 —X 1 in which R 5 is an alkyl group having 1 to 6 carbon atoms or a phenyl group, and X 1 is a functional group represented by following formula (2) when i=1; and remaining R 1 to R 3 may be the same or different and each may be a substituted or unsubstituted monovalent hydrocarbon group; M is a metal atom or an organic cation; A is a linear or branched alkylene group represented by C q H 2q in which q is any integer of 0 to 20; and the organosiloxane derivative represented by the formula (1) contains a total of 2 to 100 silicon atoms (Si) on average per molecule;
wherein in the formula (2), R 6 is a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or a phenyl group; R 7 and R 8 are respectively an alkyl group having 1 to 6 carbon atoms or a phenyl group; B is a linear or branched alkylene group represented by C r H 2r which may be partially branched in which r is any integer of 2 to 20; and i specifies generation of a silylalkyl group represented by X i and is any integer of 1 to n when the generation number is n, wherein the generation number n is any integer of 1 to 10; ai is any integer of 0 to 2 when i is 1, and is an integer smaller than 3 when i is 2 or larger; and X i+1 is silylalkyl group when i is smaller than n, and is a methyl group when i=n.
2. The cleanser according to claim 1 , wherein the organosiloxane derivative salt is represented by the formula (1), and R 1 and R 2 are respectively a functional group represented by —O—Si(R 4 ) 3 in which R 4 is an alkyl group having 1 to 6 carbon atoms; R 3 is a monovalent hydrocarbon group having 1 to 10 carbon atoms; and q is any integer of 6 to 20.
3. The cleanser according to claim 1 , wherein the organosiloxane derivative salt is represented by the formula (1), and at least one or more of R 1 to R 3 are respectively a functional group represented by following formula (4) or (5), and remaining R 1 to R 3 may be the same or different and are respectively a substituted or unsubstituted monovalent hydrocarbon group
4. The cleanser according to claim 1 , wherein the anionic surfactant is at least one selected from the group consisting of fatty acid soap, acylmethyltaurine salt, and alkyl ether carboxylic acid salt.
5. The cleanser according to claim 2 , wherein the anionic surfactant is at least one selected from the group consisting of fatty acid soap, acylmethyltaurine salt, and alkyl ether carboxylic acid salt.
6. The cleanser according to claim 3 , wherein the anionic surfactant is at least one selected from the group consisting of fatty acid soap, acylmethyltaurine salt, and alkyl ether carboxylic acid salt.
7. The cleanser according to claim 1 , wherein the organosiloxane derivative represented by the formula (1) contains a total of 2 to 30 silicon atoms (Si) on average per molecule.
8. The cleanser according to claim 1 , wherein the organosiloxane derivative represented by the formula (1) contains a total of 2 to 16 silicon atoms (Si) on average per molecule.