Abstract: To make it possible to manufacture an absorber having a reinforcing layer sandwiched between a plurality of accumulation layers with simple and compact equipment An accumulation material in an absorber mold at a first accumulation position and a second accumulation position disposed in this order on an outer peripheral surface of a fiber accumulating drum at intervals in a rotational direction of the fiber accumulating drum, and supplying a belt-shaped reinforcing layer formed of a nonwoven fabric or the like, passing over the absorber mold on the outer peripheral surface of the fiber accumulating drum and continuous in the rotational direction of the fiber accumulating drum between the first and the second accumulation positions to form, in the absorber mold, an absorber including a first accumulation layer accumulated at the first accumulation position, a second accumulation layer accumulated at the second accumulation position, and the reinforcing layer sandwiched therebetween.

Abstract: In a dot pattern, both sufficient strength during the use of a diaper and the ease of tearing can be achieved, while inhibiting sticking of fiber waste of a non-woven fabric in the sealing device. The problems can be solved by the underpants-type disposable diaper characterized by a side seal section 13 is formed in a dot pattern in which a plurality of rows of dot-shaped welded parts 13s, 13b, disposed with intervals in a vertical direction, are disposed in a transverse direction, and non-welded parts 13n, disposed all over in the transverse direction, are disposed on both sides of each welded part 13s, 13b, in the vertical direction; the side seal section 13 has at least partly in the vertical direction a non-densely welded region LD and a densely welded region HD; and each welded part 13b in the densely welded region HD is larger in area than each welded part 13s in the non-densely welded region LD.

Abstract: In a dot pattern, both sufficient strength during the use of a diaper and the ease of tearing can be achieved, while inhibiting sticking of fiber waste of a non-woven fabric in the sealing device. The problems can be solved by the underpants-type disposable diaper characterized by a side seal section 13 is formed in a dot pattern in which a plurality of rows of dot-shaped welded parts 13s, 13b, disposed with intervals in a vertical direction, are disposed in a transverse direction, and non-welded parts 13n, disposed all over in the transverse direction, are disposed on both sides of each welded part 13s, 13b, in the vertical direction; the side seal section 13 has at least partly in the vertical direction a non-densely welded region LD and a densely welded region HD; and each welded part 13b in the densely welded region HD is larger in area than each welded part 13s in the non-densely welded region LD.

Abstract: [Problems] To provide an absorbent article that is favorably effective in body pressure dispersion [Means for Solving Problems] An absorbent article X1 having an absorber 3 in which plurality of absorbent cores 3A, 3B each including a fiber base material 31 and an absorbent polymer 30 are layered in such a manner that the polymer 30 swells by gelation due to liquid absorption and expands up to one surface F of the fiber base material 31 through inter-fiber gaps thereby to form a polymer layer 40 on the fiber base material surface F while the absorbent polymer expanding surfaces of adjacent absorbent cores are opposed to each other.