Shampoo composition comprising calcium or magnesium anionic surfactants and quaternary nitrogen-containing cellulose ethers

Claim 1

A shampoo composition comprising from 3 to 50% by weight of at least one anionic surfactant, selected from the group consisting of the compounds represented by the formulas: R-(OR').sub.n OSO.sub.3 M.sub.1/2 (I), R-SO.sub.3 M.sub.1/2 (II), and OS-M.sub.1/2 (III) wherein R is an alkyl group having an average of from 8 to 18 carbon atoms or an alkylphenyl group substituted by alkyl groups having an average of from 6 to 15 carbon atoms, R' is an alkylene group having 2 or 3 carbon atoms, n is an integral number equal to from 0 to 6, OS is the acid radical of an anionic surfactant obtained by sulfonation of olefins having an average of from 10 to 18 carbon atoms, and M is a magnesium or calcium ion; and from 0.05 to 5% by weight of a quarternary nitrogen-containing cellulose ether having a quarternary nitrogen content of from 0.5 to 3.5% by weight which is a compound represented by the general formula: ##STR4## where R 1 , R 2 ' and R 3 each are hydrogen or a substituent group of the formula: ##STR5## wherein R 4 , R 5 , R 6 , R 7 , m, n, p and q in one substiuent group may be different from those in another substituent group; m, n and q are integral numbers of from 0 to 10; p is an integral number of from 0 to 3; R 4 , R 5 and R 6 are hydrogen atoms or methyl groups, R 7 is a methyl, ethyl or propyl; X is a halogen atom; and Z is a number of from 100 to 20,000; and the sum of (m+n+q) has an average value of from 1 to 3 per glucose unit and p has an average value of from about 0.1 to 0.8 per glucose unit.