Patent ID: 9486946
Filing Date: 2016-11-08
CPC Classification: A61F,B23K,B29C

Claim Text:
1. A method for manufacturing an air-permeable member, the air-permeable member being used when shaping an absorbent body of an absorbent article by depositing a liquid absorbent material, the air-permeable member allowing an air that contains the liquid absorbent material to pass in a thickness direction of the air-permeable member, the air-permeable member restricting passage of the liquid absorbent material, the method comprising: forming a plurality of plates each of which has a plurality of air holes that penetrate the plate in the thickness direction, the forming including forming air holes of the plurality of air holes into a same shape, the air holes being ones that exist in all of the plates to be stacked and that should communicate with one another; stacking the plurality of plates in the thickness direction while adjusting adjacent air holes in the thickness direction so that the adjacent air holes communicate with one another; and joining adjacent plates of all of the stacked plates at a portion in which the air holes are not formed wherein the air-permeable member is configured to cover an opening portion which has a shape corresponding to a shape into which the absorbent body is to be formed, the opening portion being formed in a shaping mold plate, each of the air holes of each plates communicates with one of the air holes provided at a neighboring plate in the thickness direction, each of the plates has at least two reference holes that are different from the air holes and that penetrate the plate in the thickness direction, the reference holes are formed so that adjacent reference holes in the thickness direction communicate with one another when corresponding air holes of all of the plates stacked in the thickness direction communicate with one another, the reference holes are formed in a portion that is closer to an outer circumferential edge of the each of the plates than a formation area of the air holes is and that comes into contact with the shaping mold plate when being attached to shaping mold plate.