WATER-ABSORBABLE SHEET STRUCTURE

• Main Authors: FUKUDOME, SHINYA, UEDA, KOJI, MARUO, JUNICHI, HANDA, MASAYOSHI
• Format: Patent
• Language: English; French; Japanese
• Published: 21.07.2011
• 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; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PROSTHESES; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TREATMENT OR PROTECTION OF EYES OR EARS

Disclosed is a water-absorbable sheet structure in which a water-absorbing layer comprising a water-absorbable resin and an adhesive agent is sandwiched between non-woven fabrics from the top surface side and the lower surface side of the water-absorbing layer, wherein the content of the water-absorbable resin is 100 to 1000 g/m2, the water-absorbable resin has a physiological saline retention of 15 to 50 g/g, and the water-absorbable sheet structure has peel strength of 0.05 to 3.0 N/7 cm. The water-absorbable sheet structure can have good shape retention properties even when the water-absorbable sheet structure is thin, and therefore has such excellent effects that the water-absorbable sheet structure can keep the shape thereof well before and after the absorption of a liquid and can exhibit absorption performance satisfactorily. L'invention concerne une structure de feuille hydroabsorbante dans laquelle une couche hydroabsorbante comprenant une résine hydroabsorbante et un agent adhésif est placée en sandwich entre des tissus non tissés du côté de la surface supérieure et du côté de la surface inférieure de la couche hydroabsorbante. La teneur en résine hydroabsorbante est comprise entre 100 et 1 000 g/m², la résine hydroabsorbante présente une capacité de rétention des sels physiologiques comprise entre 15 et 50 g/g, et la structure de feuille hydroabsorbante présente une résistance au pelage comprise entre 0,05 et 3,0 N/7 cm. La structure de feuille hydroabsorbante peut présenter de bonnes propriétés de stabilité dimensionnelle même lorsque la structure de feuille hydroabsorbante est mince, avec pour excellentes conséquences que la structure de feuille hydroabsorbante peut conserver sa forme avant et après l'absorption de liquide et présenter une performance d'absorption satisfaisante.