| 摘要 |
The present invention relates to anti-plaque mouthwash compositions that contain a zinc salt and Triclosan as the anti-plaque system. According to the present invention effective, clear and stable mouthwash compositions with a zinc salt and Triclosan and a humectant system can be obtained with a water level of more than 60% by weight, if the compositions further comprise a surfactant system that comprises a mixture of a nonionic and an anionic surface-active agent. It is essential that the nonionic surface-active agent should be of the type H-(O-CH2CH2)a-(O-CH(CH3)CH2)b-(O-CH2CH2)a-OH and should be present in an amount of from 0.5-3% by weight of the composition. The amount of the anionic surface-active agent in the compositions of the present invention should be such, that the weight ratio of the nonionic to the anionic surface-active agent ranges from 4-35, preferably from 5-20.
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