< Topic >It is superior in retention stability of the paste and easiness to grind of the base paste, the impression aspect by the alginate impression material which is obtained in the sliding , is superior in surface precision of the plaster model, furthermore it was superior even in adhesiveness to the tray for impression, offers the curing agent paste for the alginate impression material of dentistry. SolutionsCalcium sulfate and JIS Z 7260107: Conforming to the manner of statement in 2000, containing with the water soluble composition and the non ion surface active agent and the thickener where the oily water distribution coefficient which it measured is the 1.00 - the 0.01 at least, it becomes, the curing agent paste for the alginate impression material of dentistry. < Choice figure >It is not【課題】ペーストの保存安定性及び基剤ペーストとの練和性に優れ、得られるアルジネート印象材による印象面が滑沢で、石膏模型の表面精度に優れ、しかも印象用トレーへの接着性にも優れた、歯科用アルジネート印象材用硬化剤ペーストを提供する。【解決手段】硫酸カルシウムと、JIS Z 7260-107:2000に記載の方法に準拠して測定した油水分配係数が-1.00~-0.01である水溶性溶剤と、非イオン界面活性剤と、増粘剤とを少なくとも含有してなる、歯科用アルジネート印象材用硬化剤ペースト。【選択図】なし