PROBLEM TO BE SOLVED: To provide a dentifrice composition that has a convergence feeling derived from an organic acid or its salt and good moldability and is free from liquid separation after storage of a long period, less sticky and excellent in usability.SOLUTION: The dentifrice composition is characterized by including (A) an organic acid selected from gluconic acid, malic acid, tartaric acid and phytic acid and/or its salt, (B) xanthan gum, and (C) carboxymethylcellulose sodium, wherein the mass ratio of (B)/(A) is 0.3-2.0 the mass ratio of (C)/(B) is 0.2-5.0 and the pH at 25°C is 5.5-6.5. The dentifrice composition has a convergence feeling derived from an organic acid or its salt and good moldability, and is almost free from liquid separation after storage of a long period and less sticky. The dentifrice composition has a moderate convergence feeling suitable from the standpoints of matching with a flavor added to the dentifrice composition and giving a functional feeling and can be converted to a preparation making the best use of the convergence feeling.COPYRIGHT: (C)2011,JPO&INPIT【解決手段】(A)グルコン酸、リンゴ酸、酒石酸、フィチン酸から選ばれる有機酸及び/又はその塩と、(B)キサンタンガムと、(C)カルボキシメチルセルロースナトリウムとを含有し、(B)/(A)の質量比が0.3~2.0、(C)/(B)の質量比が0.2~5.0で、かつ25℃におけるpHが5.5~6.5であることを特徴とする歯磨剤組成物。【効果】本発明の歯磨剤組成物は、有機酸又はその塩由来の収斂実感を有し、長期保存後の液分離がほとんどなく、成形性が良好で、かつ曳糸性も少ないもので、歯磨剤組成物に付与する香味との相性や機能実感付与という観点から好適な適度な収斂実感を発現させ、この収斂実感を生かした製剤化が可能である。【選択図】なし
