WATER-ABSORBING SHEET AND ABSORBENT ARTICLE INCLUDING THE SAME
It is an object of the present invention to provide a novel water-absorbing sheet that can meaningfully reduce the return amount even when introduction of a liquid occurs intermittently for several times (particularly, three or more times) under a situation with no load, and the amount of introducti...
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Main Authors | , , , , , , , |
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Format | Patent |
Language | English |
Published |
30.09.2021
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Subjects | |
Online Access | Get full text |
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Abstract | It is an object of the present invention to provide a novel water-absorbing sheet that can meaningfully reduce the return amount even when introduction of a liquid occurs intermittently for several times (particularly, three or more times) under a situation with no load, and the amount of introduction of the liquid becomes large.Disclosed is a water-absorbing sheet having a first base material, a second base material, and a water-absorbing layer positioned between the first base material and the second base material, wherein the first base material is a water-permeable sheet positioned on a side where a liquid to be absorbed is introduced, the water-absorbing layer has a first particulate water absorbent localized on a side of a surf ace of the first base material, the surface being arranged to face the second base material; and a second particulate water absorbent localized on a side of a surface of the second base material, the surface being arranged to face the first base material, an overall absorption amount of the second particulate water absorbent as represented by the following formula:CRC g/g+0.44×AAP2.1 kPa g/gis 48 g/g or more, and a water absorption time determined according to a vortex method is 35 seconds or more. |
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AbstractList | It is an object of the present invention to provide a novel water-absorbing sheet that can meaningfully reduce the return amount even when introduction of a liquid occurs intermittently for several times (particularly, three or more times) under a situation with no load, and the amount of introduction of the liquid becomes large.Disclosed is a water-absorbing sheet having a first base material, a second base material, and a water-absorbing layer positioned between the first base material and the second base material, wherein the first base material is a water-permeable sheet positioned on a side where a liquid to be absorbed is introduced, the water-absorbing layer has a first particulate water absorbent localized on a side of a surf ace of the first base material, the surface being arranged to face the second base material; and a second particulate water absorbent localized on a side of a surface of the second base material, the surface being arranged to face the first base material, an overall absorption amount of the second particulate water absorbent as represented by the following formula:CRC g/g+0.44×AAP2.1 kPa g/gis 48 g/g or more, and a water absorption time determined according to a vortex method is 35 seconds or more. |
Author | HIRAUCHI, Tatsushi HIRAOKA, Ryuichi UEDA, Hiroko KITANO, Takahiro IKEUCHI, Hiroyuki TORII, Kazushi HORIMOTO, Yuichiro NODA, Yuika |
Author_xml | – fullname: KITANO, Takahiro – fullname: HIRAUCHI, Tatsushi – fullname: HIRAOKA, Ryuichi – fullname: TORII, Kazushi – fullname: IKEUCHI, Hiroyuki – fullname: NODA, Yuika – fullname: UEDA, Hiroko – fullname: HORIMOTO, Yuichiro |
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Snippet | It is an object of the present invention to provide a novel water-absorbing sheet that can meaningfully reduce the return amount even when introduction of a... |
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SubjectTerms | BANDAGES, DRESSINGS OR ABSORBENT PADS CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS DISINFECTION, STERILISATION, OR DEODORISATION OF AIR FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HUMAN NECESSITIES HYGIENE MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PROSTHESES TREATMENT OR PROTECTION OF EYES OR EARS |
Title | WATER-ABSORBING SHEET AND ABSORBENT ARTICLE INCLUDING THE SAME |
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