PROBLEM TO BE SOLVED: To provide a method for producing an absorber which has a high density part and a low density part of distinctly different densities.SOLUTION: In a deposition step, a raw material of the absorber is deposited in a recess part 22 which satisfies all (A) to (C) below. In a press step, a deposition body 32 which is separated from the recess part 22 is pressurized to obtain the absorber which has the high density part and the low density part of different densities from each other. (A) The bottom surface of the recess part 22 is constructed by including strong suction parts 23 which perform relatively strong suction and weak suction parts 24 which perform relatively weak suction, and the strong suction parts 23 have portions sandwiched between the weak suction parts 24. (B) The depth from an outer peripheral surface 21 of the weak suction part 24 is shallower than the depth from an outer peripheral surface 21 of the strong suction part 23. (C) The strong suction part 23 comprises a porous plate 26, and the weak suction part 24 is constructed by arranging, on the porous plate 26, a low air-permeable member 28 of a low air permeability, as compared with the porous plate 26.COPYRIGHT: (C)2013,JPO&INPIT【課題】密度が明確に異なる高密度部及び低密度部を有する吸収体の製造方法を提供すること。【解決手段】堆積工程においては、下記A)~C)の全てを満たす凹部22内に吸収体原料を堆積させ、プレス工程においては、凹部22から離型した堆積体32を加圧し、密度が相異なる高密度部及び低密度部を有する吸収体を得る。A)凹部22の底面は、相対的に強い吸引を行う強吸引部23と相対的に弱い吸引を行う弱吸引部24とを含んで構成され、且つ強吸引部23が弱吸引部24で挟まれている部分を有している。B)弱吸引部24の外周面21からの深さが、強吸引部24の外周面21からの深さよりも浅い。C)強吸引部23は多孔性プレート26からなり、弱吸引部24は、多孔性プレート26に比して通気性の低い低通気性部材28が多孔性プレート26上に配置されて構成されている。【選択図】図1
