An absorbent article including a liquid-permeable topsheet, a liquid-impermeable backsheet and an absorbent core sandwiched between the topsheet and the backsheet, the article being arranged along a longitudinal axis and a transversal axis extending in a perpendicular direction in relation to the longitudinal axis and the main article defining a front portion, a back portion and a crotch portion, wherein the absorbent core is formed with a sealing arrangement including two channel sealings extending along the longitudinal axis in the crotch portion and defining a first effective channel sealing width and a second effective channel sealing width, respectively. The sealing arrangement includes two side seams extending along two side edges of the core, the side seams defining a third and fourth effective width, respectively, along the crotch portion and defining a fifth and sixth effective width, respectively, along the front portion and back portion.

In order to prevent degradation of appearance, prevent a decrease in flexibility, and improve non-elasticity in a non-stretchable region in an elastic film stretchable structure, the invention is characterized by having an elastic film stretchable structure (20X) formed by stacking an elastic film (30) between a first sheet layer (20A) and a second sheet layer (20B), wherein a region having the elastic film stretchable structure (20X) includes a non-stretchable region (70) and a stretchable region (80) provided at least at one side of the non-stretchable region (70) in a stretching and contracting direction, the stretchable region (80) being stretchable in the stretching and contracting direction, the first sheet layer (20A) and the second sheet layer (20B) are joined via through holes (31) penetrating the elastic film (30) at the large number of sheet bond portions (40) arranged at intervals, and the non-stretchable region (70) does not have a section in which the elastic film (30) linearly continues along the stretching and contracting direction, due to presence of the through holes (31), even though the elastic film (30) continues in the stretching and contracting direction.

A breast pad for receiving fluid leaked from a subject's breast includes an inner layer disposed for contacting the subject's breast. The inner layer has an inner surface and an outer surface opposite the inner surface. The inner layer includes wicking material for wicking fluid from the inner surface to the outer surface away from the subject's breast. An intermediate layer is disposed over the outer surface of the inner layer. The intermediate layer includes an absorbent material for absorbing the fluid wicked from the subject's breast by the wicking material of the inner layer. An outer layer is disposed over the intermediate layer. The outer layer includes a liquid-impermeable material for trapping the fluid absorbed by the intermediate layer within the breast pad.

A first sheet layer is made of a nonwoven fabric; a second sheet layer is made of a nonwoven fabric opposed to one side of the first sheet layer; and a plurality of elongated elastically stretchable members are provided along the stretchable direction at intervals from each other between the first sheet layer and the second sheet layer. Both ends of the elastically stretchable members are fixed to at least one of the first sheet layer and the second sheet layer via a first hot melt adhesive. The first sheet layer and the second sheet layer are bonded via a second hot melt adhesive in a range in the stretchable direction corresponding to a space between the both ends of the elastically stretchable member. The holding power of the first hot melt adhesive is higher than the second hot meld adhesive.

In a composite sheet manufacturing device, a second roller having a plurality of first projections and a third roller are disposed so as to be adjacent to a first roller having multiple recessed areas. The outer diameters of the first and third rollers are the same size. The third roller is joined to the first roller with a first gear pair therebetween, so as to rotate at the same rotation frequency as that of the first roller. A first sheet that is fed in between the first roller and the second roller is shaped by being pushed into the recessed areas of the first roller by the first projections of the second roller. A second sheet is then superimposed onto the first sheet and is passed through the space between the first roller and the third roller, and the first and second sheets are thereby bonded to each other.

Provided are a perforated non-woven fabric and a production method thereof. The perforated non-woven fabric is formed by overlapping three-dimensional funnel-shaped openings of two perforated non-woven fabric layers. The first perforated non-woven fabric layer has a protruding portion and a recessed portion. The protruding portion has an internal space. An upper side of the second perforated non-woven fabric layer is adhered to a lower side of the recessed portion of the first perforated non-woven fabric layer. The overlapped three-dimensional funnel-shaped openings pass through the first perforated non-woven fabric layer and the second perforated non-woven fabric layer. An air flow passage is formed between continuous internal spaces of the protruding portions of the first perforated non-woven fabric layer and the second perforated non-woven fabric layer, thereby facilitating penetration of liquid and soft feces, reducing residues, enabling internal and external air flow circulation, and reducing discomfort from wetness.

A particulate material feeding device has a particulate material storage tank for storing particulate materials, a delivery device for continuously delivering the particulate materials stored in the particulate material storage tank, a chute which drops and transfers the particulate materials delivered from the delivery device to drop and feed the particulate materials to a feeding position, a blocking body which intermittently enters a blocking position for blocking at least a part of the particulate passage in a cross-sectional direction in the chute, from a non-blocking position, and a recovery path branched from the chute so as to discharge the particulate materials blocked by the blocking body to the outside of the chute.

Using a conveyance roller having an outer peripheral surface which is capable of conveying two sheets with an elastic element sandwiched therebetween, in a longitudinal direction of the sheets, and formed with a convex section; and a clamping and pressing device, the sheets with the elastic element sandwiched therebetween are ultrasonic-welded together under pressing. The convex section is formed in a shape extending along a line intersecting a conveyance direction of the conveyance roller, and the convex section is provided with a plurality of grooves at positions spaced apart from each other in a longitudinal direction thereof, wherein each of the grooves extends in the conveyance direction of the conveyance roller to allow a portion of the sheets on which the elastic element is disposed, to be inserted therein.

Various embodiments of wirelessly detectable objects to be used in medical procedures are provided. Such may employ ionizing radiation hard wireless radio frequency identification (RFID) transponders, other wireless transponders and/or integrated circuits, and attachment structures, all of which retain structural and functional integrity when exposed to standard sterilization dosages of ionizing radiation. Additionally or alternatively, the wireless radio frequency identification (RFID) transponders, other wireless transponders and/or integrated circuits, and attachment structures, may retain structural and functional integrity when exposed to standard sterilization temperatures and/or pressures.

In a composite sheet manufacturing device, a second roller having a plurality of first projections and a third roller are disposed so as to be adjacent to a first roller having multiple recessed areas. The outer diameters of the first and third rollers are the same size. The third roller is joined to the first roller with a first gear pair therebetween, so as to rotate at the same rotation frequency as that of the first roller. A first sheet that is fed in between the first roller and the second roller is shaped by being pushed into the recessed areas of the first roller by the first projections of the second roller. A second sheet is then superimposed onto the first sheet and is passed through the space between the first roller and the third roller, and the first and second sheets are thereby bonded to each other.