ABSORBENT BODY AND SANITARY MATERIAL PRODUCT

• Main Authors: OI, Takashi, MINOMO, Katsuhiro, ARASAKI, Moriaki
• Format: Patent
• Language: English; French; German
• Published: 15.11.2023
• Subjects: BANDAGES, DRESSINGS OR ABSORBENT PADS; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PROSTHESES; TREATMENT OR PROTECTION OF EYES OR EARS

An object of the present invention is to provide an absorbent article that has an excellent capability of quickly absorbing a large amount of urine and the like, while preventing loss of the absorbing polymers to the outside of the absorbent article. The present invention is an absorbent article comprising a first nonwoven fabric and a second nonwoven fabric between which a water-absorbing polymer group is placed, in which the surface of the first nonwoven fabric on the side of the water-absorbing polymer group has openings; the 90% diameter in the diameter distribution of the openings is 10 µm or more and 130 µm or less; the difference between the 90% diameter and the 10% diameter in the diameter distribution of the openings is 100 µm or less; the surface of the first nonwoven fabric on the opposite side of the water-absorbing polymer group has openings; the porosity of the openings is 25% or more and 50% or less; the water holding rate of the first nonwoven fabric is 1000 mass% or more; at least one surface of the second nonwoven fabric has openings; the 90% diameter in the diameter distribution of the openings is 10 µm or more and 130 µm or less; the difference between the 90% diameter and the 10% diameter in the diameter distribution of the openings is 100 µm or less; the water-absorbing polymer constituting the water-absorbing polymer group is particulate; and the particle diameter of the water-absorbing polymer is more than 106 µm and 1000 µm or less.