PROBLEM TO BE SOLVED: To provide a technique capable of suppressing liquid leakage and reversion. According to the present invention, an upper SAP layer which is an absorber, is formed of a non-woven fabric and is arranged on a surface of a base material that allows liquid to permeate, and contains particles of SAP which is a highly absorbent polymer. And a lower SAP layer, which is arranged on the back surface of the substrate and contains SAP particles which are highly absorbent polymers, and the upper SAP layer has a smaller amount of SAP than the lower SAP layer. [Selection diagram] Fig. 2【課題】本発明は、液体の漏れと逆戻りを抑制し得る技術を提供することを目的とする。【解決手段】本発明は、吸収体であって、不織布で形成され、液体を透過する基材と、基材の表面に配置され、高吸収性重合体であるＳＡＰの粒子を含む上部ＳＡＰ層と、基材の裏面に配置され、高吸収性重合体であるＳＡＰの粒子を含む下部ＳＡＰ層と、を備え、上部ＳＡＰ層は、下部ＳＡＰ層よりもＳＡＰの量が少ない。【選択図】図２
