PROBLEM TO BE SOLVED: To provide an absorber having a block-type absorbent core, however, stabilizing the absorbent core structure even after absorption of fluid, and hardly causing damage of a core wrap sheet and water absorptive polymer in manufacturing.SOLUTION: An absorber 4 comprises an absorbent core 40 and a core wrap sheet 5B. The absorbent core 40 includes: a pulp fiber layer 44 including pulp fibers but not including water absorptive polymer, and a mixing layer 45 including pulp fibers and the water absorptive polymer, which are continuously formed in the thickness direction and linear recessed parts 41 and a plurality of small absorption parts 43 formed by dividing into a plurality of areas by the linear recessed parts 41, which are formed on a surface 40b of the pulp fiber layer side. The small absorption parts 43 have a basis weight higher than that of bottom parts 42 of the linear recessed parts, and the mixing layer 45 is continued in a plane direction via the bottom part 42. The small absorption parts 43, inside thereof, are formed with fitting recesses 47 that are recessed from a surface 40b in the pulp fiber layer side towards the mixing layer 45 side, and the core wrapper sheet 5B is inserted in the fitting recesses 47.COPYRIGHT: (C)2014,JPO&INPIT【課題】ブロック型の吸収性コアを有しながら、吸液後にも吸収性コアの構造が安定しており、製造時にもコアラップシートや吸水性ポリマーの損傷が生じにくい吸収体を提供すること。【解決手段】吸収性コア40とコアラップシート5Bを備えた吸収体4であって、吸収性コア40は、パルプ繊維を含み吸水性ポリマーを含まないパルプ繊維層44と、パルプ繊維と吸水性ポリマーを含む混合層45とが厚み方向に連続して形成されており、パルプ繊維層側の面40bに、線状凹部41及び線状凹部41によって複数の領域に区画化されて形成された複数の小吸収部43を有する。小吸収部43は、線状凹部の底部42より高坪量で、混合層45は該底部42を介して平面方向に連続している。小吸収部43内には、これより小さい、パルプ繊維層側の面40bから混合層45側に向かって凹んだ嵌合凹部47が形成され、嵌合凹部47にコアラップシート5Bが陥入している。【選択図】図2
