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1. WO2022004499 - ABSORBENT ARTICLE

Publication Number WO/2022/004499
Publication Date 06.01.2022
International Application No. PCT/JP2021/023659
International Filing Date 22.06.2021
IPC
A61F 13/53 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
13Bandages or dressings; Absorbent pads
15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
53characterised by the absorbing medium
A61F 13/532 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
13Bandages or dressings; Absorbent pads
15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
53characterised by the absorbing medium
531having a homogeneous composition through the thickness of the pad
532inhomogeneous in the plane of the pad
A61F 13/533 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
13Bandages or dressings; Absorbent pads
15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
53characterised by the absorbing medium
531having a homogeneous composition through the thickness of the pad
532inhomogeneous in the plane of the pad
533having discontinuous areas of compression
A61F 13/537 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
13Bandages or dressings; Absorbent pads
15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
53characterised by the absorbing medium
534having an inhomogeneous composition through the thickness of the pad
537characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
Applicants
  • ユニ・チャーム株式会社 UNICHARM CORPORATION [JP]/[JP]
Inventors
  • 大西 和彰 ONISHI, Kazuaki
Agents
  • 青木 篤 AOKI, Atsushi
  • 三橋 真二 MITSUHASHI, Shinji
  • 小野田 浩之 ONODA, Hiroyuki
  • 奥野 剛規 OKUNO, Yoshiki
  • 藤本 健治 FUJIMOTO, Kenji
Priority Data
2020-11359930.06.2020JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) ABSORBENT ARTICLE
(FR) ARTICLE ABSORBANT
(JA) 吸収性物品
Abstract
(EN) Provided is an absorbent article which can suppress an increase in thickness while maintaining absorption performance, even if repeatedly absorbing liquids. An absorbent article 1 comprises an absorption core 9A containing highly-absorbent polymer particles, the absorption core 9A being made of a skin-side layer 6A on the side of a skin-facing surface, and a non-skin-side layer 8 on the side of a non-skin-facing surface. The skin-side layer 6A includes a plurality of trenches 18 extending along the longitudinal direction and penetrating in the thickness direction, and a plurality of base portions 20A extending along the longitudinal direction. The trenches 18 include main trenches 19 extending in the longitudinal direction, and sub trenches 21 that are present, at predetermined intervals, in a direction intersecting the main trenches 19 and communicate with the main trenches via base ends . The non-skin-side layer 8 includes trench-corresponding sections 22, 26 and base portion-corresponding sections 24 at locations overlapping with the trenches 18 and the base portions 20A in the thickness direction. A first average density of the highly-absorbent polymer particles contained in the trench-corresponding sections 22, 26 and the base portion-corresponding sections 24 is lower than a second average density of the highly-absorbent polymer particles contained in the base portions 20A.
(FR) L'invention concerne un article absorbant qui peut supprimer une augmentation de l'épaisseur tout en maintenant la performance d'absorption, même en cas d'absorption de liquide répétée. Un article absorbant 1 comprend un noyau d'absorption 9A contenant des particules polymères hautement absorbantes, le noyau d'absorption 9A étant constitué d'une couche côté peau 6A sur le côté d'une surface faisant face à la peau, et d'une couche non côté peau 8 sur le côté d'une surface non tournée vers la peau. La couche côté peau 6A inclut une pluralité de sillons 18 s'étendant le long de la direction longitudinale et pénétrant dans la direction de l'épaisseur, et une pluralité de parties de base 20A s'étendant le long de la direction longitudinale. Les sillons 18 comprennent des sillons principaux 19 s'étendant dans la direction longitudinale, et des sous-sillons 21 qui sont présents, à des intervalles prédéterminés, dans une direction croisant les sillons principaux 19 et communiquent avec les sillons principaux par l'intermédiaire d'extrémités de base. La couche non côté peau 8 inclut des sections correspondant aux sillons 22, 26 et des sections correspondant aux parties de base 24 à des emplacements se chevauchant avec les sillons 18 et les parties de base 20A dans la direction de l'épaisseur. Une première densité moyenne des particules polymères hautement absorbantes contenues dans les sections correspondant aux sillons 22, 26 et les sections correspondant aux parties de base 24 est inférieure à une seconde densité moyenne des particules polymères hautement absorbantes contenues dans les parties de base 20A.
(JA) 体液を繰り返し吸収しても、吸収性能を維持しながら厚みの増加を抑制することができる吸収性物品を提供する。 吸収性物品1は、高吸収性ポリマー粒子を含む吸収コア9Aを備え、吸収コア9Aは、肌対向面側の肌側層6Aと、非肌対向面側の非肌側層8と、からなり、肌側層6Aは、長手方向に沿って延在し、厚さ方向に貫通する複数の溝部18と、長手方向に沿って延在する複数の基部20Aと、を備える。溝部18は、長手方向に延在する主溝部19と、主溝部19と交差する方向に、所定の間隔で、主溝部と基端を介して連通して存在する従溝部21と、を含む。非肌側層8は、厚さ方向において、溝部18及び基部20Aと重複する位置に、溝部対応部22,26及び基部対応部24を備える。溝部対応部22,26及び基部対応部24に含まれる高吸収性ポリマー粒子の第1平均密度は、基部20Aに含まれる高吸収性ポリマー粒子の第2平均密度よりも低い。
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