PROBLEM TO BE SOLVED: To provide a liquid composition for cleansing denture, applicable directly to the denture, capable of easily cleansing the denture in a short time, also exhibiting high stain-removing power to the denture, and having good storage stability as well.SOLUTION: The liquid composition for cleansing denture includes: (A) 1.0-3.5 mass% of a surfactant (B) 0.5-2.5 mass% of a sulfite salt and (C) 0.3-2.0 mass% of a water-soluble polyphosphate salt wherein the mass ratio (B)/(C) is 0.3-4.0. The pH at 25°C of the liquid composition is 6.0-8.5. Therefore, the liquid composition is directly applicable to denture with no need of any dilution when to be used, damaging no denture metal, exhibits high stain-removing power to the denture even by cleansing the denture in an extremely short time, and is excellent in good storage stability, especially appearance stability under long-term high-temperature-storage and low-temperature storage. The liquid composition can make the denture clean by more effectively removing denture stains through combining chemical and physical (mechanical) (e.g. brushing) methods, thus enabling the dentures beautiful appearance to be kept.COPYRIGHT: (C)2010,JPO&INPIT【解決手段】(A)界面活性剤を1.0~3.5質量%、(B)亜硫酸塩を0.5~2.5質量%、(C)水溶性ポリリン酸塩を0.3~2.0質量%含有し、かつ(B)/(C)の質量比が0.3~4.0であり、25℃におけるpHが6.0~8.5であることを特徴とする義歯洗浄用液体組成物。【効果】上記義歯洗浄用液体組成物は、使用時に希釈を必要とせず義歯に直接適用することが可能であり、義歯金属を傷めることがなく、極めて短時間の洗浄でも義歯のステイン汚れに対して優れた除去力を発揮し、良好な保存安定性、特に長期の高温保存及び低温保存における外観安定性に優れるものであり、化学的方法とブラッシング等の物理的方法とを組み合わせて義歯のステイン汚れをより効果的に除去して義歯を清潔にし、美的外観を保持することが可能である。【選択図】なし
