Abstract: An absorbent article (1) comprising a top sheet (2), a back sheet (3), an absorbent body (4) disposed therebetween and a second sheet (10) disposed between the top sheet (2) and the absorbent body (4), wherein the second sheet (10) is composed of a laminate having a nonwoven fabric layer (11) and a plastic film layer (12) from the top sheet side and has a plurality of through-holes (13).

Abstract: An objective of the present invention is to provide an absorbent article exhibiting excellent absorption speed of body fluid and dryness after absorbing body fluid, even in the case of absorbing body fluid repeatedly. The absorbent article of the present invention comprises: a water absorption layer where a water absorbent resin powder meeting the following requirements (a) to (d) is disposed, (a) a bulk density: 0.45 g/ml to 0.62 g/ml, (b) an absorption speed measured by a vortex method: 20 seconds to 50 seconds, (c) a liquid passing speed under load: 10 seconds or less, (d) a moisture absorption blocking ratio: 5% or less; and a diffusion layer disposed below the water absorption layer and including a cellulose acetate fiber.

Abstract: In an absorbent part of an absorbent product, super absorbent materials located between two sheets in an absorbent area swell by absorption of moisture of excrement, and spaces extending in a longitudinal direction from an opening, which is formed at a portion of upper absorbent layer facing the crotch region of a wearer, are formed between a non-absorbent area where the super absorbent materials do not exist and the upper absorbent layer and between the non-absorbent area and a lower absorbent layer. In the absorbent product, through the spaces, moisture of excrement in the second excretion and later can be quickly diffused over a wide area along the longitudinal direction of the absorbent part, and the moisture of excrement can be absorbed in a wide area of the absorbent part. As a result, it is possible to maintain high absorbing ability in multiple excretions in the absorbent product.

Abstract: In an absorbent sheet manufacturing apparatus, a first roller (31) and a third roller (51) are rotated while each first concave portion (312) faces a convex portion (512), and therefore sheet concave portion rows (913) are formed on a first sheet member (91). The first sheet member (91) is transferred from a first roller-outer side surface (311) to a cylinder-outer side surface (211) of a supply cylinder (21), and a lower portion of the cylinder-outer side surface (211) is in contact with the first sheet member (91) while supply concave portions (212) supplied with particles face the sheet concave portion rows (913). Therefore, particles can be supplied accurately into each sheet concave portion (912) included in the sheet concave portion rows (913) and be held in the sheet concave portion (912) while the particles are practically prevented from scattering to the outside of the sheet concave portion (912).

Abstract: An absorber (1) provided to an absorbent article, wherein the absorber (1) is formed by folding back an absorbent sheet body (2), which comprises a first sheet member (3) and a second sheet member (4) and contains an absorbent polymer (5) but does not contain a pulp fiber between the first sheet member (3) and the second sheet member (4), at both end parts (E) in the width direction, and an absorbent polymer is not disposed between the first sheet member (3) and the second sheet member (4) at the both end parts (E).

Abstract: Each side wall part on a main body part includes a strip-like pouch part and an elastic member. The pouch part includes a first strip part extending in the longitudinal direction, and a second strip part disposed between the first strip part and the main body part and having both its edges along the longitudinal direction connecting to both edges of the first strip part. The elastic member is bonded to the first strip part linearly in the longitudinal direction. A standing part is formed in the pouch part by contraction of the elastic member. In each end part of the pouch part, a state where the pouch part overlaps with the main body part is maintained. Therefore, the height of the standing part changes gradually in a boundary part between the end part and the central part, which allows the standing part to fit against the wearer's skin.

Abstract: Concave portions filled with particles of high-absorbent resin are arranged on a side surface of a cylinder part in its circumferential direction. When each concave portion passes about the lowermost portion, the particles are ejected. A first roller conveys a first sheet member so that the first sheet member passes near the above lowermost portion. A second roller is located anterior to the above lowermost portion with respect to a moving direction of the side surface of the cylinder part at the above lowermost portion, and conveys a second sheet member to the vicinity of the above lowermost portion, to place the second sheet member on the first sheet member which has been supplied with particles. In the second roller, annular grooves are formed on the side surface. Therefore, impact on particles which collide with the second sheet member on the second roller is absorbed and scattering of particles is reduced.

Abstract: An absorbent article comprising an exterior sheet formed of a nonwoven fabric laminate (1) in which a first nonwoven fabric layer (2), a second nonwoven fabric layer (3) and a third nonwoven fabric layer (4) are laminated from the outer side, wherein the first nonwoven fabric layer (2) and the second nonwoven fabric layer (3) are joined to each other at first joining parts (6), the second nonwoven fabric layer (3) and the third nonwoven fabric layer (4) are joined to each other at second joining parts (7), and a number of the first joining parts is smaller than that of the second joining parts (7).

Abstract: An absorbent article comprising an exterior sheet formed of a nonwoven fabric laminate (1) in which a first nonwoven fabric layer (2), a second nonwoven fabric layer (3) and a third nonwoven fabric layer (4) are laminated from the outer side, wherein the first nonwoven fabric layer (2), the second nonwoven fabric layer (3) and the third nonwoven fabric layer (4) are joined to each other at a first joining part (6) by heat-embossing, and the second nonwoven fabric layer (3) and the third nonwoven fabric layer (4) are further joined to each other at a second joining part (7) by heat-embossing.

Abstract: An objective of the present invention is to provide an absorbent article exhibiting excellent absorption speed of body fluid and dryness after absorbing body fluid, even in the case of absorbing body fluid repeatedly. The absorbent article of the present invention comprises: a water absorption layer where a water absorbent resin powder meeting the following requirements (a) to (d) is disposed, (a) a bulk density: 0.45 g/ml to 0.62 g/ml, (b) an absorption speed measured by a vortex method: 20 seconds to 50 seconds, (c) a liquid passing speed under load: 10 seconds or less, (d) a moisture absorption blocking ratio: 5% or less; and a diffusion layer disposed below the water absorption layer and including a cellulose acetate fiber.

Abstract: An absorbent sheet manufacturing apparatus is provided with a cylinder part (21) having a plurality of through-holes (212) arranged in a circumferential direction. The cylinder part (21) is rotated, and therefore particles of high-absorbent resin are sequentially filled into the through-holes (212) from a particle storage space (217) in the cylinder part (21). In a particle supply region (210) of a lower portion of the cylinder part (21), the inner side surface (215) of the cylinder part (21) is covered with an isolation part (25) so that each through-hole (212) filled with particles is isolated from the particle storage space (217). And in this state, particles are ejected from the through-hole (212). As above, only particles filled in each through-hole (212) are ejected, and therefore a desired amount of particles can be easily supplied from the through-hole (212).

Abstract: An outer covering sheet (4) of a pants-type disposable diaper (1) has a front part and a back part (403) to be positioned on a front side and a back side of a wearer, and a middle part lying between the front and back parts. An absorbent body (20) is attached on the outer covering sheet (4) to absorb excrement from the wearer. Both end portions of the absorbent body, positioned in the front part and the back part (403), are folded toward the inner surface (40) of the outer covering sheet (4) and bonded on the inner surface (40). It is therefore possible to prevent skin of the wearer from being irritated by edges (241) of the end portions of the absorbent body (20) when the disposable diaper (1) is worn.

Abstract: An adhesive is independently ejected from a plurality of ejecting sections to an outer layer nonwoven fabric continuum conveyed in a conveyance direction. At this time, the adhesive is ejected to three partial regions, of an opening portion formation region in which an opening portion is formed, which are divided by two straight lines passing an inside of the opening portion formation region from the ejecting sections corresponding to the partial regions. Further, when ejection of the adhesive from the ejecting section is stopped, an adhesive non-application region is formed in the inner partial region held between the outermost two partial regions of the three partial regions.

Abstract: An absorbent sheet manufacturing apparatus has a cylinder part having a plurality of concave portions arranged in a circumferential direction, a particle filling part which is located above the cylinder part and which stores particles of high-absorbent resin, to sequentially fill the plurality of concave portions with particles by a particle filling opening in its lower end, and a communication part which is located adjacent to the particle filling opening. A concave portion facing a posterior edge of the particle filling opening is brought into communication with external space through the communication part. Therefore, when particles are filled into the concave portion from the particle filling part, air in the concave portion is forced out by particles entering the concave portion and is easily discharged to the external space through the communication part. As a result, it is possible to increase a density of particles filled in the concave portion.

Abstract: Absorbent article suppressing occurrence of malodor after use while preventing a rash on a wearer's skin. The absorbent article includes an absorbent body, and a fumaric acid-supported sheet disposed on a skin surface side of the absorbent body. The fumaric acid-supported sheet is a sheet which supports fumaric acid particles having an average particle diameter of 30 ?m or less, and/or a sheet in which at least a part of constituent fibers is coated with fumaric acid. When being in contact with the body fluid or the like, fumaric acid is not immediately but slowly dissolved so that alkalization at the area around fumaric acid can be prevented over a long period of time. In addition, fumaric acid has an action of inhibiting proliferation of putrefactive bacteria and, therefore, can prevent occurrence of malodor from the absorbent article having absorbed the body fluid or the like.

Abstract: In an absorbent sheet manufacturing apparatus, a storage part stores speed determining information including relationships between conveying speed of a first sheet member and rotational speed of a supply cylinder and corresponding respectively to target particle densities. A control part determines the rotational speed of the supply cylinder on the basis of a target particle density, the conveying speed and the speed determining information. Even if various changes are made to the conveying speed of the first sheet member, the amount of particles supplied can be accurately controlled such that the density of particles on the first sheet member matches the target particle density. Even if various changes are made to the target particle density, the amount of particles supplied can be accurately controlled in consideration of the conveying speed such that the density of particles matches the target particle density.

Abstract: An objective of the present invention is to provide an absorbent article having an excellent absorption speed of body fluid and excellent dryness after absorbing body fluid. The absorbent article of the present invention comprises: an absorbent body where a water absorbent resin powder meeting the following requirements (a) to (c) is disposed, (a) an absorption speed measured by a vortex method: 20 seconds to 50 seconds, (b) a liquid passing speed under load: 10 seconds or less, (c) a moisture absorption blocking ratio: 5% or less; and a diffusion layer composed of a synthetic fiber assembly substantially having no water absorption.

Abstract: In a disposable diaper in a developed state where a front cover sheet and a rear cover sheet are separated from each other to be developed, as distance in a left-right direction from an absorbent body increases, a lower edge of the rear cover sheet goes away from an upper edge of the rear cover sheet and then goes toward the upper edge. A leg elastic member is bonded on the rear cover sheet along its lower edge, in left and right of the absorbent body. As above, the lower end portion of the rear cover sheet is convex downward in each of left and right of the absorbent body, and lower portions of hips of a wearer are wrapped with the lower end portions. It is therefore possible to suppress leakage of excrement from the lower portions of hips of the wearer.

Abstract: An objective of the present invention is to provide an absorbent article that prevents wetting of the outer sides or surrounding area of the absorbent article due to condensation formed by water vapor escaped from inside the absorbent article. The present invention provides an absorbent article comprising: an absorbent body composed of at least one absorption layer, wherein the absorbent body includes a hydrophobized adsorbent and (a) a water absorbent resin powder having an absorption speed in a range from 6 seconds to 60 seconds determined by a vortex method.

Abstract: [Object] To provide an absorbent article and an absorbent body having excellent absorption performance. [Solution] The present invention provides an absorbent body having at least two or more layers, the absorbent body comprising: a water absorption layer having a water absorption region where a water absorbent resin powder is disposed and a thickness-direction-penetrating opening region; and a layer having a diffusion region where a diffusibility improvement material having an under-load liquid passing rate of 15 seconds or less is disposed, as a lower layer of the water absorption layer, wherein the lower layer has the diffusion region disposed at least a part of a portion located below the opening region.