흡수성 수지 입자의 액체 누설성을 평가하는 방법

• Main Authors: YABUGUCHI HIROKI, TSURU HARUKA
• Format: Patent
• Language: Korean
• Published: 18.08.2021
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BANDAGES, DRESSINGS OR ABSORBENT PADS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOSITIONS BASED THEREON; 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; GENERAL PROCESSES OF COMPOUNDING; HUMAN NECESSITIES; HYGIENE; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MEDICAL OR VETERINARY SCIENCE; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PHYSICS; PROSTHESES; TESTING; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OR PROTECTION OF EYES OR EARS; WORKING-UP

흡수성 수지 입자로 이루어지는 흡수층을, 수평면에 대하여 경사진 경사면을 따라 배치하는 것과, 노출된 흡수층에 물을 함유하는 액적상의 시험액을 주입하는 것과, 상기 흡수층에 주입된 상기 시험액이 소정의 시간 내에 상기 경사면을 따라 확산된 거리인 확산 거리를 측정하는 것을 이 순서로 포함하는, 흡수성 수지 입자의 액체 누설성을 평가하는 방법이 개시된다. 수평면과 경사면이 이루는 경사각이 25도 이상 40도 이하이다. Disclosed is a method for evaluating liquid leakage properties of water-absorbing resin particles. The method includes, in the following order: disposing a water-absorbing layer formed from the water-absorbing resin particles along an inclined plane inclined with respect to a horizontal plane; injecting a test solution which is in the form of liquid droplets and contains water into the water-absorbing layer exposed; and measuring a diffusion distance which is a distance in which the test solution injected into the water-absorbing layer diffuses along the inclined plane in a predetermined time. An angle of inclination formed by the horizontal plane and the inclined plane is 25 degrees or larger and 40 degrees or smaller.