Abstract: A sanitary mask sheet, in which a WC value indicating a work volume up to a maximum pressure in a thickness direction is 0.3 Pa·m or more, and a capture rate of particles having a particle diameter of more than 1 ?m is 85% or more.

Abstract: A sheet (10) for a mask has a first fiber layer (11) and a second fiber layer (12). The second fiber layer (12) has a higher trapping ratio for particles having a particle diameter exceeding 1 ?m and/or a smaller average fiber diameter than the first fiber layer (11). The basis weight of the second fiber layer (12) is from 1 to 20 g/m2. In a natural state, the second fiber layer (12) has a plurality of projections (13) projecting toward a surface of the second fiber layer (12) that is opposite to a surface of the second fiber layer (12) facing the first fiber layer (11) and depressions (14) that are each arranged between corresponding projections (13) of the plurality of projections (13). The depressions (14) have joined portions (15) where the second fiber layer (12) and the first fiber layer (11) are joined to each other.

Abstract: A absorbent member manufacturing method of the invention is a method for manufacturing an absorbent member (100) including synthetic fibers (10b). The method involves: a transporting step of transporting a plurality of sheet fragments (10bh) including synthetic fibers (10b) to an accumulating depression (41) by using a duct 3; an accumulating step of accumulating, in the accumulating depression (41), the plurality of sheet fragments (10bh) transported in the transporting step, and forming an accumulation (100a?) which is a constituent member of the absorbent member (100); and a pressing step of pressing the accumulation (100a?) over its entirety in the thickness direction.

Abstract: An absorbent member manufacturing method of the present invention is a method for manufacturing an absorbent member (100) for an absorbent article and including synthetic fibers (10b) and hydrophilic fibers (10a). The method involves: a transporting step of transporting the hydrophilic fibers (10a) and a plurality of sheet fragments (10bh) to an accumulating depression (41) by using a duct (3); an accumulating step of accumulating, in the accumulating depression (41), the plurality of sheet fragments (10bh) and the hydrophilic fibers (10a), and obtaining an accumulation (100a) which is a constituent member of the absorbent member (100); and a depression forming step of forming a depression (100e) in the accumulation (100a) by applying pressure to a portion thereof.

Abstract: An absorbent member manufacturing method of the invention is a method for manufacturing an absorbent member (100) for an absorbent article and including synthetic fibers (10b). The method involves: a cutting step of cutting a continuous synthetic fiber sheet (10bs) at predetermined lengths in a first direction and a second direction intersecting with the first direction, and forming sheet fragments (10bh) including the synthetic fibers (10b); a transporting step of transporting the formed sheet fragments (10bh) to an accumulating portion (41); and an accumulating step of accumulating, in the accumulating portion (41), the sheet fragments (10bh) transported in the transporting step, and obtaining an accumulation (100a) which is a constituent member of the absorbent member (100).

Abstract: An absorbent member manufacturing method of the invention is a method for manufacturing an absorbent member (100) for an absorbent article and including synthetic fibers (10b). The method involves: a cutting step of cutting a continuous synthetic fiber sheet (10bs) at predetermined lengths in a first direction and a second direction intersecting with the first direction, and forming sheet fragments (10bh) including the synthetic fibers (10b); a transporting step of transporting the formed sheet fragments (10bh) to an accumulating portion (41); and an accumulating step of accumulating, in the accumulating portion (41), the sheet fragments (10bh) transported in the transporting step, and obtaining an accumulation (100a) which is a constituent member of the absorbent member (100).

Abstract: An absorbent member (10) according to the present invention includes: a plurality of fiber clusters (11) containing synthetic fibers (11F); and a plurality of absorbent fibers (12F). The fiber clusters (11) are entangled with each other, or the fiber clusters (11) and the absorbent fibers (12F) are entangled. Each of the fiber clusters (11) includes two opposing base surfaces (111) and a body surface (112) that connects the two base surfaces (111). The number of fiber end portions per unit area in the body surface (112) is greater than the number of fiber end portions per unit area in each of the base surfaces (111).

Abstract: Disclosed is an individual package (100) of a napkin (101) having a longitudinal direction (x1) corresponding to the wearer's front-rear direction and a lateral direction (y1) orthogonal to the longitudinal direction, the napkin (101) including a topsheet (102), a backsheet (103), and an absorbent core (110) arranged between the two sheets (102, 103), the napkin being packaged in a folded-up state. The napkin (101) is folded up in the longitudinal direction (x1) of the napkin (101), with the topsheet (102) on the inside, along a first folded/bent portion (IP1) and a second folded/bent portion (IP2) that extend in the lateral direction (y1) of the napkin (101). The absorbent core (110) includes a plurality of sheet fragments (10bh) including synthetic fibers (10b), and the sheet fragments (10bh) are provided at least on the topsheet (102) side in a thickness direction of the absorbent core (110).

Abstract: A absorbent member manufacturing method of the invention is a method for manufacturing an absorbent member (100) including synthetic fibers (10b). The method involves: a transporting step of transporting a plurality of sheet fragments (10bh) including synthetic fibers (10b) to an accumulating depression (41) by using a duct 3; an accumulating step of accumulating, in the accumulating depression (41), the plurality of sheet fragments (10bh) transported in the transporting step, and forming an accumulation (100a?) which is a constituent member of the absorbent member (100); and a pressing step of pressing the accumulation (100a?) over its entirety in the thickness direction.

Abstract: An absorbent member manufacturing method of the present invention is a method for manufacturing an absorbent member (100) for an absorbent article and including synthetic fibers (10b) and hydrophilic fibers (10a). The method involves: a transporting step of transporting the hydrophilic fibers (10a) and a plurality of sheet fragments (10bh) to an accumulating depression (41) by using a duct (3); an accumulating step of accumulating, in the accumulating depression (41), the plurality of sheet fragments (10bh) and the hydrophilic fibers (10a), and obtaining an accumulation (100a) which is a constituent member of the absorbent member (100); and a depression forming step of forming a depression (100e) in the accumulation (100a) by applying pressure to a portion thereof.

Abstract: A rotating drum (1) has a collecting/stacking recess (2) in the outer peripheral surface thereof, and includes: a drum body (3); and an air-permeable porous member (4) that forms the bottom surface (2A) of the collecting/stacking recess (2). The porous member (4) is sandwiched between: an outer shaping member (6) arranged so as to oppose the bottom surface (2A); and an inner shaping member (7) arranged between the porous member (4) and the drum body (3). Both the shaping members (6, 7) are arranged so as to overlap the porous member (4). Each shaping member (6, 7) has a recess-bottom-surface corresponding section (6A, 7A) that overlaps the bottom surface (2A) of the collecting/stacking recess (2) in a planar view thereof, and that is constituted by: a plurality of openings (65, 75) that penetrate the recess-bottom-surface corresponding section (6A, 7A) in the thickness direction; and an opening defining section (60, 70) that partitions and forms the openings (65, 75).

Abstract: A rotating drum (1) has a collecting/stacking recess (2) in the outer peripheral surface thereof, and includes: a drum body (3); and an air-permeable porous member (4) that forms the bottom surface (2A) of the collecting/stacking recess (2). The porous member (4) is sandwiched between: an outer shaping member (6) arranged so as to oppose the bottom surface (2A); and an inner shaping member (7) arranged between the porous member (4) and the drum body (3). Both the shaping members (6, 7) are arranged so as to overlap the porous member (4). Each shaping member (6, 7) has a recess-bottom-surface corresponding section (6A, 7A) that overlaps the bottom surface (2A) of the collecting/stacking recess (2) in a planar view thereof, and that is constituted by: a plurality of openings (65, 75) that penetrate the recess-bottom-surface corresponding section (6A, 7A) in the thickness direction; and an opening defining section (60, 70) that partitions and forms the openings (65, 75).

Abstract: According to a method of producing an absorbent member (3) of the present invention including a depositing step of depositing raw material of absorbent member fed along with an air stream to a recess portion (22) which is arranged at an outer circumferential face of a rotatable drum (2) by suctioning and a pressing step of pressing and compressing a deposited aggregate (32) released from the inside of the recess portion (22), the recess portion (22) includes a suction portion (23) which is formed of a porous plate (26) to perform suctioning from a bottom face and a non-suction portion (24) having an air-impermeable bottom face not to perform suctioning from the bottom face while depth of the non-suction portion (24) from the outer circumferential face of the rotatable drum is shallower than depth of the suction portion (23) from the outer circumferential face of the rotatable drum, the raw material is deposited into the recess portion (22) in the depositing step, and the absorbent member (3) having a high den

Abstract: A method for manufacturing an absorbent member (3) including an accumulating step including accumulating material for the absorbent member (3) carried by air flow in recesses (23) formed on an outer peripheral surface of a rotary drum (2) and a conveying step including transferring accumulations (32) in the recesses (23) onto conveying means (5) and conveying the accumulations (32) while the accumulations (32) being retained on conveying means (5). In the accumulating step, the material for the absorbent member (3) is accumulated in a plurality of the recesses (23) formed on the rotary drum (2) so as to be arranged in a width direction of the rotary drum (2). In the conveying step, the accumulations (32) are released from the recesses (23) onto the conveying means (5) under a suction force provided from the conveying means (5) and the released accumulations (32) are conveyed while being sucked.