[Technical problem] A disposable diaper having excellent performances in both the absorbable capacity and the absorption rate, is provided. [Solution to problem] The above problem is solved by a pad type disposable diaper 200, in which a top sheet 22 is formed of a thermoplastic nonwoven fabric, and absorbent bodies 23A and 23B are formed of a lower layer absorbent body 23B and an upper layer absorbent body 23A provided on a front surface of the lower layer absorbent body 23B, wherein a slit 40 having a predetermined width is provided in the upper layer absorbent body 23A at least at a crotch portion C2 so as to extend in a front-back direction, and the slit 40 having the predetermined width is not provided in the lower layer absorbent body 23B, the top sheet 22 includes a depressed portion 30 that is depressed into the slit 40, and multiple low permeation portions 80 are provided with intervals at least in the depressed portion 30, the low permeation portions 80 being portions in which fibers are welded to each other in a state of being compressed in a thickness direction.

[Technical problem] A disposable diaper having excellent performances in both the absorbable capacity and the absorption rate, is provided. [Solution to problem] The above problem is solved by a pad type disposable diaper 200, in which a top sheet 22 is formed of a thermoplastic nonwoven fabric, and absorbent bodies 23A and 23B are formed of a lower layer absorbent body 23B and an upper layer absorbent body 23A provided on a front surface of the lower layer absorbent body 23B, wherein a slit 40 having a predetermined width is provided in the upper layer absorbent body 23A at least at a crotch portion C2 so as to extend in a front-back direction, and the slit 40 having the predetermined width is not provided in the lower layer absorbent body 23B, the top sheet 22 includes a depressed portion 30 that is depressed into the slit 40, and multiple low permeation portions 80 are provided with intervals at least in the depressed portion 30, the low permeation portions 80 being portions in which fibers are welded to each other in a state of being compressed in a thickness direction.

According to the present invention, a leak-proof compressed part, which comprises indentations formed by indenting an absorber and which is for preventing leakage from an edge of the absorber by changing the direction of body fluid spreading from a region H corresponding to a body fluid discharge part, is formed outside the region H in a prescribed pattern. The leak-proof compressed part is provided with: a fluid guide section that is for guiding, toward a center line L extending from the proximal side toward the distal side of the region H, the body fluid spreading outward from region H, and that has portions that are disposed on both sides of the center line L so that the distance therebetween across the center line L becomes lesser from the proximal side toward the distal side of the region H; a fluid collecting section which is disposed on the center line L farther beyond the fluid guide section on the distal side of the region H and which is for collecting the body fluid guided by the fluid guide section; and a fluid spreading section which extends from the fluid collecting section to both sides of the center line L and which is for spreading the collected body fluid toward both sides of the center line L.

An absorbent body for use in an absorbent article can have an improved vertical wicking capability and an improved liquid distribution capability. The absorbent body can have at least a first absorbent layer and a second absorbent layer. The absorbent body can further have at least three pairs of compressed points. A first pair of compressed points can be separated from a second pair of compressed points by a first distance in the longitudinal direction of the absorbent body. A third pair of compressed points can be separated from the first pair of compressed points by a second distance in the transverse direction of the absorbent article. The second distance can be greater than the first distance.

An absorbent body for use in an absorbent article can have an improved vertical wicking capability and an improved liquid distribution capability. The absorbent body can have at least a first absorbent layer and a second absorbent layer. The absorbent body can further have at least three pairs of compressed points. A first pair of compressed points can be separated from a second pair of compressed points by a first distance in the longitudinal direction of the absorbent body. A third pair of compressed points can be separated from the first pair of compressed points by a second distance in the transverse direction of the absorbent article. The second distance can be greater than the first distance.

A method for manufacturing an absorbent article, said method comprising guiding a first sheet material along a rotating member, wherein a surface of said rotating member is provided with a pattern with at least one suction zone and at least one non-suction zone; applying an absorbent material on said first sheet material on the rotating member; locally removing the absorbent material applied on at least one attachment portion of the first sheet material located above the at least one non-suction zone, such that at least one remaining portion of the first sheet material located above the at least one suction zone is covered with absorbent material and substantially no absorbent material is present on the at least one attachment portion; applying a second sheet material on top of the absorbent material on the first sheet material.

An apparatus for manufacturing an absorbent element for sanitary products and a method for manufacturing the same are disclosed. The absorbent element is of the type incorporating plurality of sacs or pockets in which expandable super-absorbent material is placed.

An apparatus for manufacturing an absorbent element for sanitary products and a method for manufacturing the same are disclosed. The absorbent element is of the type incorporating plurality of sacs or pockets in which expandable super-absorbent material is placed.

An absorbent of a disposable diaper is formed of a lower layer absorbent and an upper layer absorbent, wherein a pair of left and right slits is extended in a front-rear direction region including a crotch portion, wherein the left slit and the right slit are spaced apart in a width direction, wherein a top sheet includes a depressed portion that falls into the slits, and wherein, in at least a region located between the slits in the top sheet, a large number of convex portions is arranged in a zigzag manner while being spaced apart by an interval, and the interval between the adjacent convex portions in the width direction is shorter than each of sizes in the width direction of the convex portions located at the front side and at a rear side of a part of the interval.

An absorbent of a disposable diaper is formed of a lower layer absorbent and an upper layer absorbent, wherein a pair of left and right slits is extended in a front-rear direction region including a crotch portion, wherein the left slit and the right slit are spaced apart in a width direction, wherein a top sheet includes a depressed portion that falls into the slits, and wherein, in at least a region located between the slits in the top sheet, a large number of convex portions is arranged in a zigzag manner while being spaced apart by an interval, and the interval between the adjacent convex portions in the width direction is shorter than each of sizes in the width direction of the convex portions located at the front side and at a rear side of a part of the interval.