An absorbent article includes a liquid permeable top sheet, a liquid impermeable back sheet, and an absorber provided between the two sheets, the absorbent article having a predetermined length in a front-to-rear direction, and a predetermined width in a width direction perpendicular to the front-to-rear direction, wherein the absorber is provided with a groove or a slit extending in the front-to-rear direction, the absorber includes a first absorber layer on the side closer to the top sheet, and a second absorber layer on the side closer to the back sheet, and the first absorber layer includes a high-stiffness part extending outward in the width direction from an edge portion of the groove or slit, and a stiffness of the high-stiffness part is higher than a stiffness of the second absorber layer.

The present invention addresses the problem of providing an absorbent article that has an improved ability to transfer menstrual blood from a liquid-permeable layer to an absorbent body and can reduce the amount of the menstrual blood remaining in the liquid-permeable layer. To solve this problem, provided is a sanitary napkin provided with a top sheet, a back sheet and an absorbent body that is interposed between the top sheet and the back sheet, wherein convex portions formed in an excretion orifice contact region of the top sheet are coated with a blood lubricity-imparting agent that has a kinetic viscosity of 0.01-80 mm.sup.2/s at 40° C., a water retention rate of 0.01-4.0 mass % and a weight-average molecular weight of less than 1,000.

The present invention addresses the problem of providing an absorbent article that has an improved ability to transfer menstrual blood from a liquid-permeable layer to an absorbent body and can reduce the amount of the menstrual blood remaining in the liquid-permeable layer. To solve this problem, provided is a sanitary napkin provided with a top sheet, a back sheet and an absorbent body that is interposed between the top sheet and the back sheet, wherein convex portions formed in an excretion orifice contact region of the top sheet are coated with a blood lubricity-imparting agent that has a kinetic viscosity of 0.01-80 mm.sup.2/s at 40° C., a water retention rate of 0.01-4.0 mass % and a weight-average molecular weight of less than 1,000.

An absorbent article includes a liquid permeable top sheet, a liquid impermeable back sheet, and an absorber provided between the two sheets, the absorbent article having a predetermined length in a front-to-rear direction, and a predetermined width in a width direction perpendicular to the front-to-rear direction, wherein the absorber is provided with a groove or a slit extending in the front-to-rear direction, the absorber includes a first absorber layer on the side closer to the top sheet, and a second absorber layer on the side closer to the back sheet, and the first absorber layer includes a high-stiffness part extending outward in the width direction from an edge portion of the groove or slit, and a stiffness of the high-stiffness part is higher than a stiffness of the second absorber layer.