Patent ID: 8470302

Claim:
A method for producing a toothpaste container comprising two different toothpaste compositions, wherein each of the compositions has a different physical property depending on a difference of compositional ingredients contained in the compositions, the method comprising: filling separately in two chambers of the container capable of simultaneously discharging therefrom the two compositions when the body of the container is pressed, wherein at least one of the two compositions comprises at least two carboxymethylcellulose having different etherificaiton degrees and at least one silica, wherein the at least one silica is selected from the group consisting of at least two different silica having different oil absorption amounts and a mixtures thereof, and wherein a ratio of a storage modulus G A ′ measured by a rheometer of one composition (A) in one chamber to a storage modulus G B ′ measured by a rheometer of the other composition (B) in another chamber falls within a range of from 0.8/1 to 1/0.8 at tan δ=1, wherein the ratio is obtained by combining said at least two carboxymethylcelluloses having different etherificaiton degrees, said at least two silica having different oil absorption amounts, or by controlling the oil absorption amount of said silica and the etherificaiton degree of said carboxymethylcelluloses in combination, wherein the degrees of etherificaiton are in a range of from 0.6 to 1.5, and wherein the oil absorption is in a range of from 130 to 400 ml/100 g.