MANUFACTURING METHOD OF SHEET FOR ABSORBENT ARTICLE

• Main Authors: SUZUKI YUKA, ITOI TAKASHI
• Format: Patent
• Language: English; Japanese
• Published: 05.08.2022
• 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

To provide a manufacturing method of a sheet for absorbent articles preventing stain due to liquid containing a functional material and capable of sufficiently holding the functional material in the sheet, in the sheet for absorbent articles having a plurality of apertures.SOLUTION: A manufacturing method of a sheet for absorbent articles according to the present invention includes a step of spraying liquid containing a functional material and a hydrophilic and nonvolatile organic solvent, to a base material sheet 1 having a plurality of apertures. The manufacturing method employs, as the base material sheet 1, a sheet that has an area rate of the apertures with an aperture diameter of 30 μm or greater and 300 μm or less, to an area of the sheet 1, of 15% or greater and 35% or less. In the step, the liquid is sprayed in such a manner that a droplet diameter becomes 1000 μm or less.SELECTED DRAWING: Figure 1 【課題】複数の開孔を有する吸収性物品用シートにおいて、機能性材料を含む液体による汚染を防止するとともに、シート中に機能性材料を十分保持できる、吸収性物品用シートの製造方法を提供すること。【解決手段】本発明の吸収性物品用シートの製造方法は、複数の開孔を有する基材シート１に、機能性材料及び親水性且つ不揮発性の有機溶媒を含む液を噴霧する工程を具備する。本製造方法は、基材シート１として、該シート１の面積に対する、開孔径が３０μｍ以上３００μｍ以下である開孔の面積率が１５％以上３５％以下であるものを用いる。前記工程において、液滴径が１０００μｍ以下となるように前記液を噴霧する。【選択図】図１