DISPOSABLE DIAPER

• Main Authors: HASEBE YUUKI, OTA YOSHIHISA
• Format: Patent
• Language: English; Japanese
• Published: 03.10.2019
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; BANDAGES, DRESSINGS OR ABSORBENT PADS; CHEMISTRY; COMPOSITIONS BASED THEREON; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; DYES; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HUMAN NECESSITIES; HYGIENE; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MEDICAL OR VETERINARY SCIENCE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PAINTS; POLISHES; PROSTHESES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OR PROTECTION OF EYES OR EARS; USE OF MATERIALS AS ADHESIVES

To provide a disposable diaper comprising an absorbent core, a surface sheet provided on a skin surface side of the absorbent core, and an exterior sheet provided onan exterior surface of the absorbent core, capable of enhancing adhesion intensity of a junction provided in the surrounding of the absorbent core, and enhancing heat proof adhesion intensity of the junction provided in the surrounding of the absorbent core.SOLUTION: A disposable diaper comprises: an absorbent core; a surface sheet provided on a skin surface side of the absorbent core; and an exterior sheet provided on an exterior surface of the absorbent core. At least one of both end parts of the disposable diaper in a vertical direction and both end parts of the diaper in a width direction, there is provided a junction where the surface sheet and the exterior sheet are jointed by a cured object of a reactive urethane hot melt adhesive agent.SELECTED DRAWING: Figure 3 【課題】吸収コアと、吸収コアの肌面側に設けられた表面シートと、吸収コアの外面側に設けられた外装シートとを有する使い捨ておむつであって、吸収コアの周囲に設けられた接合部の接着強度を高めることを課題とする。また、本発明は、吸収コアの周囲に設けられた接合部の耐熱接着強度を高めることをさらなる課題とする。【解決手段】本発明の使い捨ておむつは、吸収コアと、吸収コアの肌面側に設けられた表面シートと、吸収コアの外面側に設けられた外装シートとを有する使い捨ておむつであって、前記使い捨ておむつの縦方向両端部および幅方向両側部の少なくとも一箇所において、前記表面シートと外装シートとが、反応性ウレタンホットメルト接着剤の硬化物により接合されている接合部が設けられていることを特徴とする。【選択図】図３