PROBLEM TO BE SOLVED: To provide a dentifrice hardly causing the increase of a viscosity under low-temperature preservation, providing good foam quality, and having reduced threading properties.SOLUTION: The dentifrice contains the following components (A) to (E), and is regulated so that the ratio [(C+D)/E] of the total mass of the components (C) and (D) to the mass of the contained component (E) may be from 0.3 to 1.5: (A): an anionic surfactant (B): a potassium ion-supplying component (C): a xanthane gum (D) a carboxymethyl cellulose having an etherification degree of &ge0.9 and <2.0 or a sodium salt thereof and (E) a carboxymethyl cellulose having an etherification degree of &ge0.5 and <0.9 or a sodium salt thereof.COPYRIGHT: (C)2011,JPO&INPIT【課題】低温保存時の粘度上昇がなく、泡質が良好で、かつ糸曳き性が抑制された歯磨剤を提供する。【解決手段】次の成分(A)~(E):(A)アニオン界面活性剤、(B)カリウムイオン供給成分、(C)キサンタンガム、(D)エーテル化度が0.9以上2.0未満のカルボキシメチルセルロース又はそのナトリウム塩(E)エーテル化度が0.5以上0.9未満のカルボキシメチルセルロース又はそのナトリウム塩を含有し、成分(C)及び成分(D)の合計質量と成分(E)の含有質量との比[(C+D)/E]が0.3~1.5である歯磨剤。【選択図】なし
