PROBLEM TO BE SOLVED: To provide hydrogel particles capable of being compounded with a crystalline organic ultraviolet ray absorber at a high concentration in a dispersed phase and suppressing crystal deposition of the crystalline organic ultraviolet ray absorber in preservation.SOLUTION: The hydrogel particles include a continuous phase composed of a non-crosslinked hydrogel and a dispersed phase dispersed in the continuous phase. The dispersed phase comprises a solid fat having an organic value (OV) of &ge310 and an inorganic value (IV) of &ge130 in an organic conceptual diagram and a crystalline organic ultraviolet ray absorber. The content of the crystalline organic ultraviolet ray absorber in the dispersed phase is 15-70 mass%.COPYRIGHT: (C)2011,JPO&INPIT【課題】分散相中に結晶性有機系紫外線吸収剤を高濃度に配合可能であり、且つ保存時に結晶性有機系紫外線吸収剤の結晶析出を抑制可能なハイドロゲル粒子を提供する。【解決手段】ハイドロゲル粒子は、非架橋型ハイドロゲルの連続相と該連続相内に分散した分散相とを備える。分散相は、有機概念図における有機性値(OV)が310以上で且つ無機性値(IV)が130以上である固体脂と結晶性有機系紫外線吸収剤とを含有する。結晶性有機系紫外線吸収剤は、分散相における含有量が15~70質量%である。【選択図】なし
