Unicharm Corporation

Kumiko Nishikawa

Yuki Noda

Kenichiro Kuroda

Jun Kudo

Takuya Miyama

Chiemi Habu

Satoshi Mizutani

Hideyuki Ishikawa

Akihiro Kimura

To apply a clear pattern to an absorbent article such as sanitary napkin without worsening the soft and comfortable touch to skin and allowing the colorant from coming into direct contact with the skin of a wearer. An absorbent article comprising a liquid-permeable sheet, a liquid-impermeable sheet, an absorber sandwiched between the liquid-permeable sheet and the liquid-impermeable sheet, and side sheets joined to at least a part of the right and left both sides of the liquid-permeable sheet and to at least a part of the liquid-impermeable sheet, wherein a plurality of recess parts are provided in the side sheet, at least the portion provided with the recess part has a colored layer between the side sheet and the liquid-permeable sheet, and the recess part appears in a color different from the portion other than the recess part. The recess part is provided by stacking the liquid-permeable sheet, the colored layer and the side sheet in this order and applying embossing from the side sheet side to the region where the colored layer is present.

Absorbent article with pattern

An absorbent body material article includes an absorbent article main unit, an absorbent body material included in the absorbent article main unit and including absorbent fibers and a super absorbent resin, and interspersed sections in the absorbent body material and having a longitudinal direction, a lateral direction, and a thickness direction. A densely gathered state of the absorbent fibers in each of the interspersed sections is less dense than a densely gathered state of the absorbent fibers around each of the interspersed sections. An occupied volume ratio of the super absorbent resin in the interspersed sections is greater than an occupied volume ratio of the super absorbent resin around the interspersed sections. At least one of the interspersed sections overlaps a fold line and the longitudinal direction of the at least one of the interspersed sections is aligned with the fold line.

Absorbent article

An elongated absorbent article including: an absorbent article body having at least: (a) a top sheet part which is at least partially liquid permeable and arranged on a first side in a thickness direction of the absorbent article; and (b) a liquid retainable absorber part arranged on a second side in the thickness direction of the absorbent article body; a cover member arranged on the second side in the thickness direction of the absorbent article body; an extensible belt-shaped member disposed between the absorbent article body and the cover member, a first end portion of the belt-shaped member being connected to the absorbent article body; an engaging part arranged at a second end portion of the belt-shaped member on a surface thereof on which the cover member is disposed; a peelable sheet arranged along a surface of the engaging part; and a fixing part for connecting and fixing the peelable sheet to the cover member; the fixing part being formed so that an end portion thereof in a direction of elongation of the belt-shaped member is arranged at either one of a position corresponding to an end portion of the engaging part in the direction of elongation, and a position more towards the direction of elongation. This improves the adhesion between the wearer's excretory part and the absorbent article, thereby preventing the leakage of excrement such as menstrual blood.

An absorbent article comprising an absorbent body, wherein the absorbent body has multiple linear or curved fold regions with a flexural rigidity lower than average flexural rigidity and with a flexural rigidity lower than that in adjacent regions. Accordingly, there is provided an absorbent article that can change its morphology along the configuration of wear object. Absorbent article has multiple linear or curved first fold regions with a flexural rigidity lower than the average flexural rigidity of the absorbent article and with a flexural rigidity lower than that in adjacent regions, which multiple first fold regions are provided in approximately symmetric relationship with respect to the center line in the direction of width.

An absorbent article comprising nonwoven fabric having convex and concave surfaces, and that allows liquid such as excreta and the like to permeate quickly. A sanitary napkin has a plurality of raised ridge portions and groove portions in a top sheet member. The fiber density of the side edge portions of each of the plurality of raised ridge portions in the thickness direction of the nonwoven fabric is substantially uniform, and is higher than the average fiber density in the raised ridge portions. The fiber density of the central portion between both the side edge portions of each of the plurality of raised ridge portions is substantially uniform in the thickness direction of the nonwoven fabric, and is lower than the average fiber density in the raised ridge portions.

An absorbent article having a substantially oblong shape, which is superior in liquid-proof performance and fitness, includes a liquid permeable top sheet, a back sheet, an absorbent body having elasticity disposed between the top sheet and the back sheet, and a compressed portion compressing the top sheet and the absorbent body. The compressed portion is disposed continuously to form a protrusion in a longitudinal direction to define a substantially U shape. The absorbent portion has a low elasticity portion, disposed on one part of the absorbent body, and formed so that elasticity weakens when compression to a prescribed thickness is carried out. The low elasticity portion is disposed in the vicinity of an end protruding the most in the longitudinal direction of the substantially U shape.

An absorbent article includes a compressed groove provided on a body-side surface of a sanitary napkin includes a pair of lateral groove segments extending substantially in the longitudinal direction symmetrically about a longitudinal center line and a pair of rear groove segments converging rearward from respective rear ends of the pair of lateral groove segments so that the compressed groove as a whole presents an elongated shape which is angular rearward. The rear side groove segment has a curve conforming, in the vicinity of its rear end, with an arc of a circle having a predetermined radius and inscribed to the rear side groove segment. A bottom covering region extending rearward from the rear end of the rear groove segment has a predetermined thickness and is adapted to be folded along the longitudinal center line so that the bottom covering region can become convex on the side of the body-side surface. A distance between a pair of proximal ends of the rear side groove segment as measured in the transverse direction is in a predetermined range and a distance from the pair of proximal ends to the rear end of the rear groove segment as measured in the longitudinal direction is in a predetermined range.

Growing community of inventors

Kagawa, Japan

Kumiko Nishikawa