JP6800272B2 - Laminates and absorbent articles - Google Patents

Laminates and absorbent articles Download PDF

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Publication number
JP6800272B2
JP6800272B2 JP2019086165A JP2019086165A JP6800272B2 JP 6800272 B2 JP6800272 B2 JP 6800272B2 JP 2019086165 A JP2019086165 A JP 2019086165A JP 2019086165 A JP2019086165 A JP 2019086165A JP 6800272 B2 JP6800272 B2 JP 6800272B2
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Prior art keywords
woven fabric
laminated body
absorbent article
sheet
opening
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JP2019086165A
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JP2020179647A (en
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橋本　達也
達也 橋本
大坪　俊文
俊文 大坪
秀晃 槇
秀晃 槇
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Uni Charm Corp
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Uni Charm Corp
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Priority to JP2019086165A priority Critical patent/JP6800272B2/en
Priority to TW109107962A priority patent/TWI825286B/en
Priority to PCT/JP2020/013217 priority patent/WO2020217827A1/en
Priority to BR112021017355-2A priority patent/BR112021017355B1/en
Priority to CN202020613339.XU priority patent/CN212853824U/en
Priority to CN202010321667.7A priority patent/CN111839898A/en
Publication of JP2020179647A publication Critical patent/JP2020179647A/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15699—Forming webs by bringing together several webs, e.g. by laminating or folding several webs, with or without additional treatment of the webs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/496—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/551—Packaging before or after use
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/56—Supporting or fastening means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/56—Supporting or fastening means
    • A61F13/5622—Supporting or fastening means specially adapted for diapers or the like
    • A61F13/565—Supporting or fastening means specially adapted for diapers or the like pants type diaper
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/56—Supporting or fastening means
    • A61F13/64—Straps, belts, ties or endless bands
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/84—Accessories, not otherwise provided for, for absorbent pads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B32B7/14—Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F2013/15821—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F2013/15821—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing
    • A61F2013/15861—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing for bonding
    • A61F2013/15878—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing for bonding by thermal bonding
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F2013/15821—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing
    • A61F2013/15934—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing for making non-woven
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F2013/49088—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the leg opening
    • A61F2013/49092—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the leg opening comprising leg cuffs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/84—Accessories, not otherwise provided for, for absorbent pads
    • A61F2013/8497—Accessories, not otherwise provided for, for absorbent pads having decorations or indicia means

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Manufacturing & Machinery (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Laminated Bodies (AREA)

Description

本発明は、積層体、及び、吸収性物品に関する。 The present invention relates to laminates and absorbent articles.

使い捨ておむつや生理用ナプキン等の吸収性物品において、２枚のシート部材（例えば、不織布）を、ホットメルト接着剤等で厚さ方向に接合（積層）した積層体が用いられることがある。また、２枚のシート部材の少なくとも１枚に複数の開孔を設けたものも知られている（例えば、特許文献１参照）。特許文献１では、シート部材の開孔からのホットメルト接着剤の抜け対策として、バリ部のみホットメルト接着剤を塗布するようにしている。 In absorbent articles such as disposable diapers and sanitary napkins, a laminate in which two sheet members (for example, non-woven fabric) are joined (laminated) in the thickness direction with a hot melt adhesive or the like may be used. Further, it is also known that at least one of the two sheet members is provided with a plurality of holes (see, for example, Patent Document 1). In Patent Document 1, the hot melt adhesive is applied only to the burr portion as a countermeasure against the hot melt adhesive coming out from the opening of the sheet member.

特開２０１８−５７８１０号公報JP-A-2018-57810

しかしながら、バリ部のみ選択的にホットメルト接着剤を塗布することは困難であり、開孔からホットメルト接着剤が滲み出してしまうおそれがあった。これにより使用者がべたつきを感じるおそれがあった。また、シート部材に複数の開孔を形成することにより、強度（剛性）が低下するおそれがあった。 However, it is difficult to selectively apply the hot melt adhesive only to the burr portion, and there is a risk that the hot melt adhesive may seep out from the openings. As a result, the user may feel sticky. Further, by forming a plurality of openings in the seat member, there is a possibility that the strength (rigidity) is lowered.

本発明は、上記のような問題に鑑みてなされたものであって、強度を確保できるとともに、ホットメルト接着剤が開孔から滲み出すことを抑制できる積層体を提供することを目的とする。 The present invention has been made in view of the above problems, and an object of the present invention is to provide a laminate capable of ensuring strength and suppressing exudation of a hot melt adhesive from holes.

上記目的を達成するための主たる発明は、複数の開孔を有する不織布と、シートと、伸長した状態で前記不織布と前記シートとの間に挟まれた弾性部材と、を備え、前記不織布と前記シートとがホットメルト接着剤により互いに接合されるとともに、前記ホットメルト接着剤と、前記複数の開孔のうちの或る開孔とが少なくとも一部重なる領域を有する積層体であって、前記不織布は、前記或る開孔に隣接する縁部の少なくとも一部に非溶融部を有し、前記縁部以外の部位に溶融部を有する、ことを特徴とする積層体である。
本発明の他の特徴については、本明細書及び添付図面の記載により明らかにする。 A main invention for achieving the above object includes a nonwoven fabric having a plurality of openings, a sheet, and an elastic member sandwiched between the nonwoven fabric and the sheet in an elongated state, and the nonwoven fabric and the said. A laminate having a region in which the sheets are bonded to each other by a hot melt adhesive and at least a part of the hot melt adhesive and a certain opening among the plurality of openings overlap, and is the non-woven fabric. Is a laminate characterized by having a non-melted portion at least a part of an edge portion adjacent to the certain opening and having a melted portion at a portion other than the edge portion.
Other features of the present invention will be clarified by the description in the present specification and the accompanying drawings.

本発明によれば、強度を確保できるとともに、ホットメルト接着剤が開孔から滲み出すことを抑制できる積層体を提供できる。 According to the present invention, it is possible to provide a laminate capable of ensuring strength and suppressing exudation of the hot melt adhesive from the pores.

伸長状態の積層体１の概略斜視図である。It is a schematic perspective view of the laminated body 1 in an extended state. 積層体１の分解図である。It is an exploded view of the laminated body 1. 図３Ａは、図１の積層体１のＸ領域の平面拡大図である。図３Ｂは図３Ａの積層体１が収縮した状態を示す図である。FIG. 3A is an enlarged plan view of the X region of the laminated body 1 of FIG. FIG. 3B is a diagram showing a state in which the laminated body 1 of FIG. 3A is contracted. 不織布１０の概略断面であるIt is a schematic cross section of the non-woven fabric 10. 積層体１の変形例（積層体１´）を示す説明図である。It is explanatory drawing which shows the modification (laminate body 1') of the laminated body 1. 伸長状態における積層体１´の平面拡大図である。It is a plane enlarged view of the laminated body 1'in the extended state. 図７Ａは、伸長状態における積層体１´の開孔５及び６の一例を説明するための概略拡大図である。図７Ｂは、積層体１´の開孔５及び６の一例を説明するための概略拡大図である。FIG. 7A is a schematic enlarged view for explaining an example of the openings 5 and 6 of the laminated body 1'in the extended state. FIG. 7B is a schematic enlarged view for explaining an example of the openings 5 and 6 of the laminated body 1'. おむつ１００の概略斜視図である。It is a schematic perspective view of the diaper 100. 展開且つ伸長状態のおむつ１００を非肌側から見た概略平面図である。FIG. 5 is a schematic plan view of the unfolded and stretched diaper 100 as viewed from the non-skin side. 展開状態の後処理テープ１３５の概略斜視図である。It is a schematic perspective view of the post-processing tape 135 in the unfolded state. 図９のＡ−Ａ概略断面図である。9 is a schematic cross-sectional view taken along the line AA of FIG. 図１２Ａ〜図１２Ｃは、後処理テープ１３５を引き剥がすときの様子を示す概略図である。12A to 12C are schematic views showing a state when the post-treatment tape 135 is peeled off. 展開且つ伸長状態のおむつ２００を肌側から見た概略平面図であるIt is a schematic plan view of the unfolded and stretched diaper 200 as seen from the skin side. 図１３のＢ−Ｂ概略断面図である。FIG. 13 is a schematic cross-sectional view taken along the line BB of FIG. ホットメルト接着剤の塗布領域の説明図である。It is explanatory drawing of the application area of a hot melt adhesive.

本明細書及び添付図面の記載により、少なくとも以下の事項が明らかとなる。 The description of the present specification and the accompanying drawings will clarify at least the following matters.

複数の開孔を有する不織布と、シートと、伸長した状態で前記不織布と前記シートとの間に挟まれた弾性部材と、を備え、前記不織布と前記シートとがホットメルト接着剤により互いに接合されるとともに、前記ホットメルト接着剤と、前記複数の開孔のうちの或る開孔とが少なくとも一部重なる領域を有する積層体であって、前記不織布は、前記或る開孔に隣接する縁部の少なくとも一部に非溶融部を有し、前記縁部以外の部位に溶融部を有する、ことを特徴とする積層体である。 A non-woven fabric having a plurality of openings, a sheet, and an elastic member sandwiched between the non-woven fabric and the sheet in an elongated state are provided, and the non-woven fabric and the sheet are bonded to each other by a hot melt adhesive. In addition, the nonwoven fabric is a laminate having a region in which the hot melt adhesive and a certain opening among the plurality of openings overlap at least partially, and the nonwoven fabric has an edge adjacent to the certain opening. It is a laminated body characterized by having a non-melted portion in at least a part of the portion and having a fused portion in a portion other than the edge portion.

このような積層体によれば、開孔の縁部の少なくとも一部に非溶融部があることにより、弾性部材が縮む際に開孔が変形しやすくなる。これによりホットメルト接着剤の開孔からの滲み出しを抑制できる。また、開孔の縁部以外の部位に溶融部があることにより、不織布の剛性を高めることができる。よって、不織布に複数の開孔を設けていても、強度を確保できるとともに、ホットメルト接着剤が開孔から滲み出すことを抑制できる。 According to such a laminated body, since there is a non-melted portion at least a part of the edge portion of the opening, the opening is easily deformed when the elastic member shrinks. As a result, it is possible to suppress the exudation of the hot melt adhesive from the openings. Further, the rigidity of the non-woven fabric can be increased by having the molten portion in a portion other than the edge portion of the opening. Therefore, even if the non-woven fabric is provided with a plurality of holes, the strength can be ensured and the hot melt adhesive can be prevented from seeping out from the holes.

かかる積層体であって、伸長状態において、前記或る開孔の面積が、前記溶融部の面積よりも大きいことが望ましい。 In such a laminated body, it is desirable that the area of the certain opening is larger than the area of the molten portion in the extended state.

このような積層体によれば、開孔の面積が溶融部の面積より大きいことにより、柔軟性を維持しやすく、ホットメルト接着剤が開孔から滲み出さないようにできる。 According to such a laminated body, since the area of the opening is larger than the area of the molten portion, it is easy to maintain the flexibility and the hot melt adhesive can be prevented from seeping out from the opening.

かかる積層体であって、所定方向に並ぶ前記溶融部のピッチが、前記所定方向に並ぶ前記開孔のピッチよりも小さいことが望ましい。 In such a laminated body, it is desirable that the pitch of the molten portions arranged in a predetermined direction is smaller than the pitch of the openings arranged in the predetermined direction.

このような積層体によれば、所定方向へ強度を確保でき、破れにくくなる。 According to such a laminated body, strength can be ensured in a predetermined direction, and it becomes difficult to tear.

かかる積層体であって、前記不織布に滑剤が含まれていることが望ましい。 It is desirable that the non-woven fabric contains a lubricant in such a laminate.

このような積層体によれば、繊維同士が滑りやすくなるので、開孔の収縮を阻害しない。これにより、弾性部材による開孔の変形が促進され、ホットメルト接着剤が開孔から滲み出すことを抑制できる。 According to such a laminate, the fibers become slippery, so that the shrinkage of the pores is not hindered. As a result, the deformation of the pores by the elastic member is promoted, and the hot melt adhesive can be prevented from seeping out from the pores.

かかる積層体であって、前記不織布を構成する繊維の断面が円形又は楕円形であることが望ましい。 In such a laminate, it is desirable that the cross section of the fibers constituting the non-woven fabric is circular or elliptical.

このような積層体によれば、繊維同士が滑りやすくなるので、開孔の収縮を阻害しない。これにより、弾性部材による開孔の変形が促進され、ホットメルト接着剤が開孔から滲み出すことを抑制できる。 According to such a laminate, the fibers become slippery, so that the shrinkage of the pores is not hindered. As a result, the deformation of the pores by the elastic member is promoted, and the hot melt adhesive can be prevented from seeping out from the pores.

かかる積層体であって、伸長状態において、前記開孔の平面形状が円形又は楕円形であることが望ましい。 In such a laminated body, it is desirable that the planar shape of the opening is circular or elliptical in the extended state.

このような積層体によれば、開孔の形状が矩形や多角形の場合と比べて、開孔が変形しやすい。よってホットメルト接着剤が開孔から滲み出すことを抑制できる。 According to such a laminated body, the opening is easily deformed as compared with the case where the shape of the opening is rectangular or polygonal. Therefore, it is possible to prevent the hot melt adhesive from seeping out from the openings.

かかる積層体であって、前記不織布は、スパンボンド不織布であることが望ましい。 It is desirable that the non-woven fabric is a spunbonded non-woven fabric.

このような積層体によれば、スパンボンド不織布は、他の不織布（例えばエアスルー不織布）よりも開孔周りの繊維が比較的動きやすく、開孔が閉じやすい。よって、開孔からホットメルト接着剤が滲み出すことを抑制するのに効果的である。 According to such a laminate, in the spunbonded non-woven fabric, the fibers around the opening are relatively easy to move and the opening is easy to close as compared with other non-woven fabrics (for example, air-through non-woven fabric). Therefore, it is effective in suppressing the exudation of the hot melt adhesive from the pores.

かかる積層体であって、前記シートは、複数の開孔を有していてもよい。 In such a laminated body, the sheet may have a plurality of openings.

このような積層体によれば、開孔数が多くなるため、通気性が向上する。また、積層体がより柔らかくなり、弾性部材によって開孔が閉じやすくなる。 According to such a laminated body, the numerical aperture is increased, so that the air permeability is improved. In addition, the laminate becomes softer, and the elastic member makes it easier to close the openings.

かかる積層体であって、前記不織布の前記或る開孔の少なくとも一部は、前記シートのうち開孔のない非開孔領域と重なることが望ましい。 In such a laminated body, it is desirable that at least a part of the certain openings of the nonwoven fabric overlaps with the non-opened region of the sheet.

このような積層体によれば、開孔が重なる部分は、通気性がより向上する。また、シートのうちの開孔のない非開孔領域と重なる部分は、シートの透け感との対比によって開孔の陰影が強調され、視認性が向上する According to such a laminated body, the air permeability is further improved in the portion where the openings overlap. Further, in the portion of the sheet that overlaps with the non-opened region without holes, the shadow of the holes is emphasized by the contrast with the see-through feeling of the sheet, and the visibility is improved.

かかる積層体であって、前記或る開孔に隣接する前記縁部と、前記非開孔領域とは、互いに接合されていない非接合部を有することが望ましい。 In such a laminated body, it is desirable that the edge portion adjacent to the certain opening and the non-opening region have a non-joining portion that is not joined to each other.

このような積層体によれば、或る開孔の縁部と、当該或る開孔の少なくとも一部と重なる非開孔領域とが互いに接合されていないことで、柔軟性を保持でき（開孔が変形しやすく）、また、肌当たりがよい。 According to such a laminated body, flexibility can be maintained (opening) because the edge of a certain hole and the non-open area overlapping at least a part of the certain hole are not joined to each other. (The holes are easily deformed), and it feels good on the skin.

かかる積層体であって、伸長状態において、前記或る開孔の孔径は、前記シートに形成された開孔の孔径よりも大きく、平面視において、前記シートに形成された一つの開孔が、前記或る開孔の内側に位置することが望ましい。 In such a laminated body, in the extended state, the hole diameter of the certain hole is larger than the hole diameter of the hole formed in the sheet, and in a plan view, one hole formed in the sheet is formed. It is desirable to be located inside the certain opening.

このような積層体によれば、不織布の開孔とシートの開孔が重なることで、通気性がより向上する。また、重なり合った開孔によって陰影が強調されて視認性が向上する。 According to such a laminated body, the air permeability is further improved by overlapping the opening of the non-woven fabric and the opening of the sheet. In addition, the overlapping openings emphasize the shadows and improve visibility.

また、互いに直交する上下方向、左右方向、前後方向を有し、液体を吸収する吸収性本体と、上記のいずれかの積層体と、を備えたことを特徴とする吸収性物品が明らかになる。 Further, an absorbent article characterized by having an absorbent main body having a vertical direction, a horizontal direction, and a front-rear direction orthogonal to each other and absorbing a liquid and any of the above-mentioned laminates will be clarified. ..

このような吸収性物品によれば、吸収性物品の不織布の開孔からホットメルト接着剤が滲み出さないようにできる。 According to such an absorbent article, the hot melt adhesive can be prevented from seeping out from the pores of the non-woven fabric of the absorbent article.

かかる吸収性物品であって、前記上下方向において、隣接する開孔の間に溶融部が位置していることが望ましい。 In such an absorbent article, it is desirable that the molten portion is located between the adjacent openings in the vertical direction.

このような吸収性物品によれば、隣接する開孔の間に溶融部があることで、上下方向の強度を確保でき破れにくくなる。 According to such an absorbent article, since the molten portion is provided between the adjacent openings, the strength in the vertical direction can be secured and the tearing is difficult.

かかる吸収性物品であって、前記不織布は前記シートよりも非肌側に配置されていてもよい。 In such an absorbent article, the non-woven fabric may be arranged on the non-skin side of the sheet.

このような吸収性物品によれば、外側から開孔があることを視認できる。 According to such an absorbent article, it is possible to visually recognize that there is an opening from the outside.

かかる吸収性物品であって、前記不織布と前記シートとの間の少なくとも1部に非開孔のフィルムが挟まれており、前記不織布は、前記フィルムの非肌側の面に、前記ホットメルト接着剤で接合され、前記弾性部材は、前記フィルムの肌側の面に前記ホットメルト接着剤で接合されていることが望ましい。 In such an absorbent article, a non-perforated film is sandwiched between at least one part between the non-woven fabric and the sheet, and the non-woven fabric adheres to the non-skin side surface of the film with the hot melt adhesive. It is desirable that the elastic member is bonded with an agent and the elastic member is bonded to the skin side surface of the film with the hot melt adhesive.

このような吸収性物品によれば、不織布とシートとの間に非開孔のフィルムを設けることによって、不織布の開孔からのホットメルト接着剤の滲み出しをより抑制することができる。特に、弾性部材を湾曲して配置する箇所では、弾性部材に直接ホットメルト接着剤を塗布できず、不織布に弾性部材を固定するためのホットメルト接着剤を高い目付で塗布する必要があるため、このような箇所で効果的である。 According to such an absorbent article, by providing a non-perforated film between the non-woven fabric and the sheet, it is possible to further suppress the exudation of the hot melt adhesive from the perforations of the non-woven fabric. In particular, in places where the elastic member is curved and arranged, the hot melt adhesive cannot be applied directly to the elastic member, and it is necessary to apply the hot melt adhesive for fixing the elastic member to the non-woven fabric with a high degree of grain. It is effective in such a place.

かかる吸収性物品であって、前記弾性部材は、前記吸収性本体を跨いで、前記吸収性物品の前記左右方向の一端から他端に亘って設けられており、前記弾性部材のうち、前記フィルムと重なる部位の伸長倍率は、前記フィルムと重ならない部位の伸長倍率よりも小さいことが望ましい。 In such an absorbent article, the elastic member is provided from one end to the other end of the absorbent article in the left-right direction straddling the absorbent body, and among the elastic members, the film. It is desirable that the elongation ratio of the portion that overlaps with the film is smaller than the elongation ratio of the portion that does not overlap with the film.

このような吸収性物品によれば、フィルムを設けている部分ではホットメルト接着剤が滲み出しにくいので、ホットメルト接着剤の滲み出しを抑制するために開孔を収縮させる必要が少ない。よって、フィルムを設けている部分では弾性部材の伸長倍率が小さくてもよい。 According to such an absorbent article, since the hot melt adhesive does not easily exude at the portion where the film is provided, it is less necessary to shrink the openings in order to suppress the exudation of the hot melt adhesive. Therefore, the elongation ratio of the elastic member may be small at the portion where the film is provided.

かかる吸収性物品であって、前記前記不織布と前記フィルムを接合する前記ホットメルト接着剤の目付が、前記フィルムと前記弾性部材を接合する前記ホットメルト接着剤の目付よりも小さいことが望ましい。 In such an absorbent article, it is desirable that the texture of the hot melt adhesive that joins the non-woven fabric and the film is smaller than the texture of the hot melt adhesive that joins the film and the elastic member.

このような吸収性物品によれば、弾性部材を確実に固定しつつ、開孔からホットメルト接着剤が滲み出すことを抑制できる。 According to such an absorbent article, it is possible to prevent the hot melt adhesive from seeping out from the pores while reliably fixing the elastic member.

かかる吸収性物品であって、前記フィルムには図柄が施されていることが望ましい。 It is desirable that the film is such an absorbent article and has a pattern.

このような吸収性物品によれば、不織布に複数の開孔が設けられていることにより、フィルムの図柄を視認しやすい。 According to such an absorbent article, the design of the film is easily visible because the non-woven fabric is provided with a plurality of openings.

かかる吸収性物品であって、前記不織布の非肌側には、前記吸収性物品を廃棄する際に前記吸収性物品を丸めた状態に保持するためのテープ部材が接合されており、前記不織布は、前記テープ部材との接合領域の少なくとも一部に、前記溶融部を有することが望ましい。 In the absorbent article, a tape member for holding the absorbent article in a rolled state when the absorbent article is discarded is bonded to the non-skin side of the nonwoven fabric. , It is desirable to have the fused portion in at least a part of the bonding region with the tape member.

このような吸収性物品によれば、溶融部によって不織布の強度（剛性）が高くなっているので、テープ部材を剥がす際に、不織布が破れることを抑制できる。 According to such an absorbent article, since the strength (rigidity) of the non-woven fabric is increased by the molten portion, it is possible to prevent the non-woven fabric from being torn when the tape member is peeled off.

かかる吸収性物品であって、前記厚さ方向において、前記テープ部材と前記不織布との接合領域と、前記不織布と前記シートとの接合領域とが少なくとも一部重なっていることが望ましい。 In such an absorbent article, it is desirable that at least a part of the bonding region between the tape member and the non-woven fabric and the bonding region between the non-woven fabric and the sheet overlap in the thickness direction.

このような吸収性物品によれば、テープ部材を剥がす際に、不織布のみが引っ張られないため、不織布が破れにくく、また、テープ部材を剥がしやすい。 According to such an absorbent article, when the tape member is peeled off, only the non-woven fabric is not pulled, so that the non-woven fabric is not easily torn and the tape member is easily peeled off.

かかる吸収性物品であって、前記不織布と前記シートとの接合領域は、前記テープ部材を前記左右方向に跨いでいることが望ましい。 In such an absorbent article, it is desirable that the bonding region between the non-woven fabric and the sheet straddles the tape member in the left-right direction.

このような吸収性物品によれば、テープ部材の引っ張る力に抗うように、不織布とシートとの接合領域を後処理テープの左右方向に跨がせることで、（テープ部材周辺の）開孔部から不織布が破れるのを抑制できる。 According to such an absorbent article, the opening portion (around the tape member) is formed by straddling the bonding region between the non-woven fabric and the sheet in the left-right direction of the post-treatment tape so as to resist the pulling force of the tape member. It is possible to prevent the non-woven fabric from tearing.

かかる吸収性物品であって、前記不織布は前記シートよりも肌側に配置されていてもよい。 In such an absorbent article, the non-woven fabric may be arranged on the skin side of the sheet.

このような吸収性物品によれば、開孔が肌側に配置されることによって汗をより吸収しやすくなる。 According to such an absorbent article, the perspiration is more easily absorbed by arranging the openings on the skin side.

＝＝＝実施形態＝＝＝
＜積層体１の基本構成＞
はじめに、本実施形態に係る積層体１の基本的構成について説明する。図１は、伸長状態の積層体１の概略斜視図であり、図２は、積層体１の分解図である。また、図３Ａは、図１（伸長状態）の積層体１のＸ領域の平面拡大図であり、図３Ｂは図３Ａの積層体１が収縮した状態を示す図である。また、図４は、不織布１０の概略断面である。 === Embodiment ===
<Basic configuration of laminated body 1>
First, the basic configuration of the laminated body 1 according to the present embodiment will be described. FIG. 1 is a schematic perspective view of the laminated body 1 in an elongated state, and FIG. 2 is an exploded view of the laminated body 1. Further, FIG. 3A is an enlarged plan view of the X region of the laminated body 1 in FIG. 1 (extended state), and FIG. 3B is a diagram showing a state in which the laminated body 1 of FIG. 3A is contracted. Further, FIG. 4 is a schematic cross section of the non-woven fabric 10.

なお、伸長状態とは、積層体１を皺なく伸長させた状態、具体的には、積層体１を構成する各部材（不織布１０、シート２０）の寸法がその部材単体の寸法と一致又はそれに近い寸法になるまで伸長させた状態のことを言う。図１及び図２において、シート状の積層体１の長辺に沿った方向を長辺方向とし、短辺に沿った方向を短辺方向とする。また、長辺方向及び短辺方向に直交する方向（積層体１を構成する各部材が重なる方向）を厚さ方向とする。 The stretched state is a state in which the laminated body 1 is stretched without wrinkles. Specifically, the dimensions of each member (nonwoven fabric 10, sheet 20) constituting the laminated body 1 match or match the dimensions of the member alone. It refers to the state in which it is stretched to a close size. In FIGS. 1 and 2, the direction along the long side of the sheet-shaped laminated body 1 is defined as the long side direction, and the direction along the short side is defined as the short side direction. Further, the direction orthogonal to the long side direction and the short side direction (the direction in which the members constituting the laminated body 1 overlap) is defined as the thickness direction.

図１に示すように、積層体１は、不織布１０と、シート２０とを有する２層構造であり、不織布１０とシート２０との間には弾性部材３０が配置されている。 As shown in FIG. 1, the laminated body 1 has a two-layer structure having a non-woven fabric 10 and a sheet 20, and an elastic member 30 is arranged between the non-woven fabric 10 and the sheet 20.

不織布１０には、表裏に貫通する開孔５が間隔を空けて複数設けられている。不織布１０を構成する素材繊維としては、例えば、ポリプロピレン（ＰＰ）、ポリエチレン（ＰＥ）、ポリエチレンテレフタレート（ＰＥＴ）等が挙げられる。また、ポリプロピレンやポリエチレンなどの単独繊維だけでなく、ポリプロピレンやポリエチレンからなる芯鞘構造の複合繊維（Ｂｉｃｏ）などを使用することも可能である。不織布の態様としては、サーマルボンド不織布、スパンボンド不織布、スパンレース不織布、エアスルー不織布等が挙げられる。なお、本実施形態において、不織布１０にはスパンボンド不織布を用いている。この理由については後述する。 The non-woven fabric 10 is provided with a plurality of openings 5 penetrating the front and back at intervals. Examples of the material fibers constituting the non-woven fabric 10 include polypropylene (PP), polyethylene (PE), polyethylene terephthalate (PET) and the like. Further, it is also possible to use not only a single fiber such as polypropylene or polyethylene but also a composite fiber (Bico) having a core-sheath structure made of polypropylene or polyethylene. Examples of the non-woven fabric include thermal-bonded non-woven fabric, spun-bonded non-woven fabric, spunlace non-woven fabric, air-through non-woven fabric and the like. In this embodiment, a spunbonded non-woven fabric is used as the non-woven fabric 10. The reason for this will be described later.

また、シート２０を構成する素材としては、例えば、上述と同様の不織布の他に、樹脂フィルム等が挙げられ、不織布１０に対する支持シートとしても使用できる。 Further, as the material constituting the sheet 20, for example, in addition to the non-woven fabric similar to the above, a resin film or the like can be mentioned, and it can also be used as a support sheet for the non-woven fabric 10.

弾性部材３０は、弾性を有する糸状の部材であり、不織布１０とシート２０の間において、短辺方向に複数並んで配置されるとともに、長辺方向に伸長した状態で固定されている。弾性部材３０としては、糸状のゴムやスパンデックス等を例示できる。本実施形態において、各弾性部材３０の周囲には、直接ホットメルト接着剤（ＨＭＡ）が塗布されており、不織布１０とシート２０は、弾性部材３０に塗布されたホットメルト接着剤によって接合されている。ホットメルト接着剤（ＨＭＡ）としては、例えば、ＥＶＡ系、エラストマー系、オレフィン系、ポリエステル・ポリアミド系などを使用できる。 The elastic member 30 is a thread-like member having elasticity, and a plurality of elastic members 30 are arranged side by side in the short side direction and fixed in a state of being extended in the long side direction between the non-woven fabric 10 and the sheet 20. Examples of the elastic member 30 include thread-like rubber and spandex. In the present embodiment, a hot melt adhesive (HMA) is directly applied around each elastic member 30, and the nonwoven fabric 10 and the sheet 20 are joined by the hot melt adhesive applied to the elastic member 30. There is. As the hot melt adhesive (HMA), for example, EVA type, elastomer type, olefin type, polyester / polyamide type and the like can be used.

ただし、これには限られず、他の塗布方法（例えば、螺旋状に塗布できるスパイラル塗工、波状に塗布できるオメガ塗工、コントロールシーム塗工等）でホットメルト接着剤を塗布して不織布１０とシート２０を接合してもよい。すなわち、ホットメルト接着剤の塗布領域と弾性部材３０の位置が異なっていてもよい。 However, the present invention is not limited to this, and the non-woven fabric 10 is coated with a hot melt adhesive by another coating method (for example, spiral coating that can be applied spirally, omega coating that can be applied in a wavy shape, control seam coating, etc.). The sheets 20 may be joined. That is, the position of the elastic member 30 may be different from the application region of the hot melt adhesive.

ここで、不織布１０が上述したポリプロピレン、ポリエチレン等の熱可塑性樹脂繊維によって構成される場合、開孔５の形成は、例えば、加熱されたピン部材（不図示）等を使用して行うことが可能である。その際、通常、ピン部材の温度が繊維やフィルム素材の融点以上に設定されることが多い。この場合、開孔を行うピン部材の温度が各素材の融点以上であることによって、開孔に隣接する縁部が溶融し、冷えて固化されて開孔が形成される。しかしながら、上述の方法により開孔の形状は保持できるものの、開孔部分が硬くなってしまうおそれがある。 Here, when the nonwoven fabric 10 is composed of the above-mentioned thermoplastic resin fibers such as polypropylene and polyethylene, the pores 5 can be formed by using, for example, a heated pin member (not shown). Is. At that time, the temperature of the pin member is usually set to be equal to or higher than the melting point of the fiber or film material. In this case, when the temperature of the pin member for opening the hole is equal to or higher than the melting point of each material, the edge portion adjacent to the opening is melted, cooled and solidified to form the opening. However, although the shape of the hole can be maintained by the above method, the hole may become hard.

これに対し、本実施形態の不織布１０に形成されている複数の開孔５については、開孔５を形成する際のピン部材（不図示）の温度が繊維の軟化点以上且つ同融点未満に収まるようにしている。これによって、開孔５に隣接する縁部５ｅ（図３Ａ参照）は、繊維同士が溶融されにくく非溶融部となっている。なお、縁部５ｅは、開孔５から径方向の外側に所定幅（本実施形態では２ｍｍ）の円環状の部分である。この縁部５ｅでは、開孔５の部分に存在していた繊維がより集められており、繊維密度が高くなっている。 On the other hand, with respect to the plurality of openings 5 formed in the nonwoven fabric 10 of the present embodiment, the temperature of the pin member (not shown) at the time of forming the openings 5 is equal to or higher than the softening point of the fiber and lower than the melting point. I try to fit it. As a result, the edge portion 5e (see FIG. 3A) adjacent to the opening 5 is a non-melted portion where the fibers are less likely to be melted. The edge portion 5e is an annular portion having a predetermined width (2 mm in the present embodiment) outward from the opening 5 in the radial direction. In the edge portion 5e, the fibers existing in the portion of the opening 5 are more collected, and the fiber density is increased.

また、不織布１０には複数の溶融部４が形成されている。溶融部４は、不織布１０の製造時に形成されたものである。すなわち、本実施形態の不織布１０は、スパンボンド不織布であり、紡糸した長繊維をランダムに堆積させてウェッブを形成し、エンボス加工が施された熱ローラで所々熱融着することにより、シート状に形成されている。溶融部４は、この熱ローラによって形成されたパターン（エンボス）であり、溶融部４では厚さが薄くなっている。具体的には、図４に示す開孔５の縁部５ｅの厚さｔ２と溶融部４の厚さｔ１を測定したところ、縁部５ｅの厚さｔ２は３５０μｍであり、溶融部４の厚さｔ１は２５μｍであった。なお、厚さの測定は、液体窒素にて不織布１０を凍結させた後、所定範囲を切り出して測定サンプルを作製した。そして、厚さ測定器（例えば、キーエンス社製デジタルマイクロスコープVHX-2000）を使用して、測定サンプルの断面の画像を撮影して、それぞれ複数個所（例えば１０カ所）の厚さを測定し、その平均値を厚さとした。 Further, a plurality of molten portions 4 are formed on the non-woven fabric 10. The molten portion 4 is formed at the time of manufacturing the non-woven fabric 10. That is, the non-woven fabric 10 of the present embodiment is a spunbonded non-woven fabric, and is formed into a sheet by randomly depositing spun long fibers to form a web and heat-sealing in places with an embossed thermal roller. Is formed in. The melting portion 4 is a pattern (embossing) formed by the thermal roller, and the thickness of the melting portion 4 is reduced. Specifically, when the thickness t2 of the edge portion 5e of the opening 5 and the thickness t1 of the molten portion 4 shown in FIG. 4 were measured, the thickness t2 of the edge portion 5e was 350 μm, and the thickness of the fused portion 4 was measured. T1 was 25 μm. To measure the thickness, the non-woven fabric 10 was frozen in liquid nitrogen, and then a predetermined range was cut out to prepare a measurement sample. Then, using a thickness measuring device (for example, KEYENCE digital microscope VHX-2000), an image of the cross section of the measurement sample is taken, and the thickness of each of a plurality of points (for example, 10 points) is measured. The average value was taken as the thickness.

なお、繊維密度は、坪量を厚さで除算することによって求められる。不織布１０の坪量を１８ｇ／ｍ２すると、開孔５の縁部５ｅの繊維密度は、厚さｔ２が３５０μｍであるので０．０５ｇ／ｃｍ３となる。一方、溶融部４の繊維密度は、厚さｔ１が２５μｍであるので、０．７２ｇ／ｃｍ３となる。よって、溶融部４は、繊維密度の高い縁部５ｅよりもさらに高密度であることになる。 The fiber density is obtained by dividing the basis weight by the thickness. When the basis weight of the non-woven fabric 10 is 18 g / m 2 , the fiber density of the edge portion 5e of the opening 5 is 0.05 g / cm 3 because the thickness t2 is 350 μm. On the other hand, the fiber density of the molten portion 4 is 0.72 g / cm 3 because the thickness t1 is 25 μm. Therefore, the molten portion 4 has a higher density than the edge portion 5e having a high fiber density.

このように、溶融部４では、繊維密度が高く、繊維同士が熱融着されていることにより、他の部位よりも強度が高い。 As described above, in the molten portion 4, the fiber density is high and the fibers are heat-sealed to each other, so that the strength is higher than that of other portions.

なお、本実施形態の溶融部４は平面形状が円形であるが、これには限られず、例えば矩形など他の形状であってもよい。 The molten portion 4 of the present embodiment has a circular planar shape, but is not limited to this, and may have another shape such as a rectangle.

図３Ａに示す複数の開孔５のうち、或る開孔５aは、弾性部材３０（換言するとホットメルト接着剤）と重なる領域（開孔５ａにおける弾性部材３０の露出している領域）を有している。なお、弾性部材３０にホットメルト接着剤を直接塗布しない場合、或る開孔５ａと弾性部材３０とが重ならなくてもよい。この場合、不織布１０とシート２０の間に塗布されたホットメルト接着剤の塗布領域と、或る開孔５ａとが少なくとも一部重なればよい。また、或る開孔５ａの縁部５ａｅは、繊維が溶融されていない非溶融部５ａｈを有している（図３Ａでは縁部５ａｅ全体が非溶融部５ａｈである）。これにより、或る開孔５ａは、硬くならずに柔軟性を有することができる。 Of the plurality of openings 5 shown in FIG. 3A, a certain opening 5a has a region (in other words, an exposed region of the elastic member 30 in the opening 5a) that overlaps with the elastic member 30 (in other words, a hot melt adhesive). doing. When the hot melt adhesive is not directly applied to the elastic member 30, the opening 5a and the elastic member 30 do not have to overlap. In this case, the application area of the hot melt adhesive applied between the non-woven fabric 10 and the sheet 20 and a certain opening 5a may at least partially overlap. Further, the edge portion 5ae of a certain opening 5a has a non-melted portion 5ah in which fibers are not melted (in FIG. 3A, the entire edge portion 5ae is a non-melted portion 5ah). Thereby, a certain opening 5a can have flexibility without becoming hard.

図３Ａでは、弾性部材３０が伸長した状態で長辺方向に沿って配置されている。このため、弾性部材３０の収縮により、図３Ｂに示すように、積層体１は長辺方向に収縮する。この際、本実施形態の積層体１では、或る開孔５ａの縁部５ａｅの少なくとも一部に、溶融されていない非溶融部５ａｈを有しているので、変形しやすく（すなわち閉じやすく）なっている。このように、或る開孔５ａが閉じやすいことにより、或る開孔５ａからホットメルト接着剤が滲み出すことを抑制できる。 In FIG. 3A, the elastic member 30 is arranged along the long side direction in an extended state. Therefore, as shown in FIG. 3B, the laminated body 1 contracts in the long side direction due to the contraction of the elastic member 30. At this time, in the laminated body 1 of the present embodiment, since at least a part of the edge portion 5ae of a certain opening 5a has an unmelted non-melted portion 5ah, it is easily deformed (that is, easily closed). It has become. As described above, since the opening 5a is easily closed, it is possible to prevent the hot melt adhesive from seeping out from the opening 5a.

また、不織布１０に溶融部４が設けられていることにより、不織布１０が複数の開孔５を有していても強度を確保することができる。また、溶融部４が開孔５の縁部５ｅ以外の部位に配置されていることにより、開孔５が閉じるのを阻害しない。 Further, since the non-woven fabric 10 is provided with the molten portion 4, the strength can be ensured even if the non-woven fabric 10 has a plurality of openings 5. Further, since the melting portion 4 is arranged at a portion other than the edge portion 5e of the opening 5, the opening 5 is not prevented from closing.

また、図３Ａに示すように、伸長状態において、開孔５の面積は、溶融部４の面積よりも大きい。 Further, as shown in FIG. 3A, the area of the opening 5 is larger than the area of the molten portion 4 in the extended state.

ここで、仮に、溶融部４の面積の方が、或る開孔５ａの面積よりも大きいと、例えば、弾性部材３０の伸縮方向と直交する方向（ここでは短辺方向）に溶融部４と或る開孔５ａが並んだ場合などにおいて、或る開孔５ａが閉じにくくなるおそれがある。すなわち、或る開孔５ａ周囲の柔軟性を維持できないおそれがある。本実施形態では、伸長状態において、開孔５（或る開孔５ａ）の面積が溶融部４の面積よりも大きいことにより、柔軟性を維持でき、ホットメルト接着剤の滲み出しを抑制できる。また、溶融部４の面積が開孔５の面積よりも小さいことにより、或る開孔５ａの縁部５ａｅに溶融部４が重なったとしても、或る開孔５ａの縁部５ａｅの少なくとも一部は非溶融部５ａｈになる。よって、柔軟性を維持できる。 Here, if the area of the molten portion 4 is larger than the area of a certain opening 5a, for example, the molten portion 4 is formed in a direction orthogonal to the expansion / contraction direction of the elastic member 30 (here, the short side direction). When certain openings 5a are lined up, it may be difficult to close certain openings 5a. That is, there is a possibility that the flexibility around a certain opening 5a cannot be maintained. In the present embodiment, since the area of the opening 5 (a certain opening 5a) is larger than the area of the molten portion 4 in the extended state, the flexibility can be maintained and the exudation of the hot melt adhesive can be suppressed. Further, since the area of the molten portion 4 is smaller than the area of the opening 5, even if the molten portion 4 overlaps the edge portion 5ae of the opening 5a, at least one of the edges 5ae of the opening 5a. The portion becomes a non-melted portion 5ah. Therefore, flexibility can be maintained.

なお、開孔５や溶融部４の面積の測定方法としては、例えば次のような方法で実施できる。すなわち、マイクロスコープ（例えば、キーエンス社製デジタルマイクロスコープ）で撮影した画像から開孔５や溶融部４の領域を抽出し、抽出領域の面積を算出することで、開孔５や溶融部４の面積を求めることができる。本実施形態では開孔５と溶融部４が共に円形であるので、抽出した領域の径（直径）を求めるだけでもよい。径の大きい方が面積も大きいことになる。 As a method for measuring the area of the opening 5 and the molten portion 4, for example, the following method can be used. That is, by extracting the region of the opening 5 or the fusion zone 4 from the image taken with a microscope (for example, a digital microscope manufactured by KEYENCE) and calculating the area of the extraction region, the opening 5 or the fusion zone 4 The area can be calculated. In the present embodiment, since both the opening 5 and the molten portion 4 are circular, it is sufficient to obtain the diameter (diameter) of the extracted region. The larger the diameter, the larger the area.

また、図３Ａに示すように、伸長状態において、開孔５は長辺方向及び短辺方向にそれぞれピッチＰ１で並んでおり、溶融部４は長辺方向及び短辺方向にそれぞれピッチＰ２で並んでいる。そして、溶融部４のピッチＰ２は、開孔５のピッチＰ１よりも小さい。 Further, as shown in FIG. 3A, in the extended state, the openings 5 are arranged at a pitch P1 in the long side direction and the short side direction, respectively, and the molten portions 4 are arranged at a pitch P2 in the long side direction and the short side direction, respectively. I'm out. The pitch P2 of the molten portion 4 is smaller than the pitch P1 of the opening 5.

このように、溶融部４のピッチＰ２が開孔５のピッチＰ１よりも小さいことにより、長辺方向や短辺方向への強度を確保でき、不織布１０が破れにくくなる。なお、本実施形態では、開孔５が長辺方向と短辺方向に同じピッチ（ピッチＰ１）で並んでいるが、長辺方向と短辺方向でピッチが異なっていてもよい。溶融部４についても同様である。また、長辺方向と短辺方向に対して斜めの方向に、溶融部４や開孔５が並んでいてもよい。特定の方向について、溶融部４のピッチを開孔５のピッチよりも小さくすることで、その方向についての強度を高めることができる。 As described above, since the pitch P2 of the molten portion 4 is smaller than the pitch P1 of the opening 5, the strength in the long side direction and the short side direction can be ensured, and the non-woven fabric 10 is less likely to be torn. In the present embodiment, the openings 5 are arranged at the same pitch (pitch P1) in the long side direction and the short side direction, but the pitch may be different in the long side direction and the short side direction. The same applies to the molten portion 4. Further, the molten portion 4 and the opening 5 may be arranged in a direction oblique to the long side direction and the short side direction. By making the pitch of the melting portion 4 smaller than the pitch of the opening 5 in a specific direction, the strength in that direction can be increased.

また、不織布１０には滑剤が含まれていることが望ましい。滑剤の一例としては、界面活性剤や油剤を例示でき、より具体的には、オレイン酸アミド、エルカ酸アミド、ステアリン酸アミド等を用いることができ、又は、アミノ酸を含む変性シリコーンオイル等のシリコーンオイル、オリーブ油などの動植物油、流動パラフィン等を用いることができる。但し、何等これに限らない。すなわち、不織布１０において所定の材料を塗布した位置での摩擦係数を、塗布前の摩擦係数よりも低下させることができれば、当該材料も上記の潤滑作用を奏し得る。これにより、不織布１０を構成する繊維の滑りが良くなるので、開孔５の収縮を阻害しない。よって、ホットメルト接着剤が開孔５から滲み出すことを抑制できる。 Further, it is desirable that the non-woven fabric 10 contains a lubricant. As an example of the lubricant, a surfactant or an oil agent can be exemplified, and more specifically, an oleic acid amide, an erucic acid amide, a stearic acid amide or the like can be used, or a silicone such as a modified silicone oil containing an amino acid. Animal and vegetable oils such as oil and olive oil, liquid paraffin and the like can be used. However, it is not limited to this. That is, if the friction coefficient at the position where the predetermined material is applied on the nonwoven fabric 10 can be made lower than the friction coefficient before application, the material can also exhibit the above-mentioned lubricating action. As a result, the fibers constituting the non-woven fabric 10 are more slippery, so that the shrinkage of the opening 5 is not hindered. Therefore, it is possible to prevent the hot melt adhesive from seeping out from the opening 5.

また、不織布１０を構成する繊維の断面は円形又は楕円形であることが望ましい。このように繊維の断面が円形又は楕円形であると、繊維同士が滑りやすくなるので、開孔５の収縮を阻害しない。これにより、弾性部材３０による開孔５の変形が促進されるので、ホットメルト接着剤が開孔５から滲み出すことを抑制できる。 Further, it is desirable that the cross section of the fibers constituting the non-woven fabric 10 is circular or elliptical. When the cross section of the fiber is circular or elliptical in this way, the fibers become slippery and do not hinder the contraction of the opening 5. As a result, the deformation of the opening 5 by the elastic member 30 is promoted, so that the hot melt adhesive can be prevented from seeping out from the opening 5.

また、図３Ａに示す伸長状態において、開孔５の平面形状は円形であるが、楕円形であってもよい。このように、開孔５の平面形状は円形又は楕円形であることが望ましい。これにより、平面形状が矩形や多角形の場合と比べて、開孔５が変形しやすく（閉じやすく）なる。よって、ホットメルト接着剤が開孔５から滲み出すことを抑制できる。 Further, in the extended state shown in FIG. 3A, the planar shape of the opening 5 is circular, but it may be elliptical. As described above, it is desirable that the planar shape of the opening 5 is circular or elliptical. As a result, the opening 5 is easily deformed (closed) as compared with the case where the planar shape is rectangular or polygonal. Therefore, it is possible to prevent the hot melt adhesive from seeping out from the opening 5.

また、本実施形態で使用しているスパンボンド不織布は、他の不織布と比べて、開孔周りの繊維が比較的動きやすい。例えば、エアスルー不織布は、繊維同士の多数の接点で熱融着されており、ほぼ全面が溶融状態となっている。不織布１０にエアスルー不織布を用いると、全体的に剛性が高くなり、開孔が変形しにくくなる。 Further, in the spunbonded non-woven fabric used in the present embodiment, the fibers around the openings are relatively easy to move as compared with other non-woven fabrics. For example, the air-through non-woven fabric is heat-sealed at a large number of contacts between fibers, and almost the entire surface is in a molten state. When an air-through non-woven fabric is used for the non-woven fabric 10, the rigidity is increased as a whole and the openings are less likely to be deformed.

本実施形態では、不織布１０としてスパンボンド不織布を用いているため、開孔周りの繊維が比較的動きやすいので、開孔５（或る開孔５ａ）が閉じやすい。よって、ホットメルト接着剤の滲み出しを抑制するのに効果的である。また、スパンボンド不織布には複数のエンボス（溶融部４）が設けられていることにより、不織布１０が複数の開孔５を有していても強度を確保できる。 In the present embodiment, since the spunbonded nonwoven fabric is used as the nonwoven fabric 10, the fibers around the openings are relatively easy to move, so that the openings 5 (a certain opening 5a) are easily closed. Therefore, it is effective in suppressing the exudation of the hot melt adhesive. Further, since the spunbonded nonwoven fabric is provided with a plurality of embosses (melted portions 4), the strength can be ensured even if the nonwoven fabric 10 has a plurality of openings 5.

＜積層体１の変形例＞
図５は、積層体１の変形例（積層体１´）を示す概略説明図である。
この変形例（図５）では、シート２０にも複数の開孔（開孔６）が形成されている。開孔６は、不織布１０とシート２０を貫通して設けられている。尚、不織布１０において、開孔５と開孔６とが重なる部分は開孔部となるために各開孔の輪郭は見えなくなるが、図５（及び後述する図６、図７）においては、説明の便宜上、各開孔の輪郭を実線で残している。開孔６は、弾性部材３０と重ならない位置に形成されている。また、この変形例においても不織布１０とシート２０は、弾性部材３０に直接塗布されたホットメルト接着剤で接合されている。 <Modification example of laminated body 1>
FIG. 5 is a schematic explanatory view showing a modified example of the laminated body 1 (laminated body 1').
In this modification (FIG. 5), a plurality of openings (openings 6) are also formed in the sheet 20. The opening 6 is provided so as to penetrate the non-woven fabric 10 and the sheet 20. In the non-woven fabric 10, the portion where the opening 5 and the opening 6 overlap is an opening portion, so that the outline of each opening cannot be seen. However, in FIG. 5 (and FIGS. 6 and 7 described later), For convenience of explanation, the outline of each opening is left as a solid line. The opening 6 is formed at a position where it does not overlap with the elastic member 30. Further, also in this modification, the nonwoven fabric 10 and the sheet 20 are joined by a hot melt adhesive directly applied to the elastic member 30.

積層体１´は、不織布１０が有する複数の開孔５と、不織布１０とシート２０とに設けられる複数の開孔６とを有することにより、開孔数が増加し、通気性をより確保しやすくなる。また、柔軟性が高くなり、不織布１０の開孔５が閉じやすくなる。 By having the plurality of openings 5 of the nonwoven fabric 10 and the plurality of openings 6 provided in the nonwoven fabric 10 and the sheet 20, the laminated body 1'increases the numerical aperture and further secures the air permeability. It will be easier. In addition, the flexibility is increased, and the openings 5 of the non-woven fabric 10 are easily closed.

図６は、伸長状態における積層体１´の平面拡大図である。図６では、不織布１０とシート２０とが重なっている状態を示している。図６では、積層体１´の不織布１０の複数の開孔５のうちの或る開孔（弾性部材３０と重なる領域を有する開孔）を開孔５ａとし、シート２０側に設けられた複数の開孔６のうちの一つの開孔を６ａとしている。なお、ここでは、不織布１０の溶融部４の図示を省略している。不織布１０の複数の開孔５のうちの或る開孔５ａを一例として見ると、開孔５ａは、シート２０側に設けられた複数の開孔６のうちの一つの開孔６ａと重なっていてもよい。積層体１´において、開孔５（５ａ）と開孔６（６ａ）が重なることで、通気性がより向上する。また、開孔の縁部の重なり部分（図においてＫで示す部分）は、寄せ集まった繊維により開孔５（６）の輪郭がより明確になるので、視認性が良くなる。 FIG. 6 is an enlarged plan view of the laminated body 1'in the extended state. FIG. 6 shows a state in which the non-woven fabric 10 and the sheet 20 are overlapped with each other. In FIG. 6, a plurality of openings (openings having a region overlapping the elastic member 30) among the plurality of openings 5 of the nonwoven fabric 10 of the laminated body 1'are defined as openings 5a, and are provided on the sheet 20 side. The opening of one of the holes 6 of the above is 6a. Here, the illustration of the molten portion 4 of the non-woven fabric 10 is omitted. Looking at a certain opening 5a among the plurality of openings 5 of the non-woven fabric 10 as an example, the opening 5a overlaps with one of the plurality of openings 6 provided on the sheet 20 side. You may. In the laminated body 1', the air permeability is further improved by overlapping the openings 5 (5a) and 6 (6a). Further, in the overlapping portion of the edge portion of the opening (the portion indicated by K in the figure), the contour of the opening 5 (6) becomes clearer due to the gathered fibers, so that the visibility is improved.

図７Ａは、伸長状態における積層体１´の開孔５及び６の一例を説明するための概略拡大図である。図７Ａではシート２０のうちの開孔のない領域を非開孔領域６０（左下がりの斜線で示した部分）としている。図７Ａに示すように、或る開孔５ａの少なくとも一部は、シート２０の非開孔領域６０と重なる領域Ｒ（格子状で示した部分）を有している。これにより、互いの開孔が重なるところは、開孔の陰影が強調されて、視認性が向上する。 FIG. 7A is a schematic enlarged view for explaining an example of the openings 5 and 6 of the laminated body 1'in the extended state. In FIG. 7A, the non-perforated region of the sheet 20 is defined as the non-perforated region 60 (the portion indicated by the diagonal line downward to the left). As shown in FIG. 7A, at least a part of a certain opening 5a has a region R (a portion shown in a grid pattern) that overlaps with the non-opening region 60 of the sheet 20. As a result, where the openings overlap each other, the shadow of the openings is emphasized and the visibility is improved.

また、或る開孔５ａに隣接する縁部５ａｅと、非開孔領域６０とは、互いに接合されていない非接合部７０を有していることが好ましい。縁部５ａｅと、シート２０のうちの開孔のない領域である非開孔領域６０とが接合されないことで、縁部５ａｅが硬くならず、積層体１´として柔軟性を保持できる。 Further, it is preferable that the edge portion 5ae adjacent to a certain opening 5a and the non-opening region 60 have a non-joining portion 70 that is not joined to each other. By not joining the edge portion 5ae and the non-perforated region 60 of the sheet 20 which is a region without holes, the edge portion 5ae does not become hard and the flexibility of the laminated body 1'can be maintained.

図７Ｂは、積層体１´の開孔５及び６の一例を説明するための概略拡大図であり、伸長状態における各開孔５及び開孔６の大きさの関係の一例を示している。開孔５のうちの或る開孔５ａ（５）の孔径を５ａｄｉ、シート２０側に設けられている複数の開孔６のうちの一つの開孔６ａの孔径を６ａｄｉとすると、孔径５ａｄｉは、孔径６ａｄｉよりも大きいことが好ましい。本例での孔径５ａｄｉ、６ａｄｉの大小は、平面視のときに、下の孔の縁（図７Ｂでは開孔６ａの縁）が見えれば上の孔（５ａ）の孔径の方が大きいしとし、見えない場合は、上の孔（５ａ）の孔径の方が小さいとする。また、平面視において、開孔６ａが開孔５ａの内側に位置することが好ましい。これにより、不織布１０の開孔５ａと、別のシート２０の開孔６ａとが重なる部分では、積層体１´の通気性がさらに向上する。また、重なり合った開孔５ａ及び６ａによって、平面視において開孔５ａ及び６ａの重なり部分に陰影ができ、開孔の視認性が向上する。 FIG. 7B is a schematic enlarged view for explaining an example of the openings 5 and 6 of the laminated body 1', and shows an example of the relationship between the sizes of the openings 5 and 6 in the extended state. Assuming that the hole diameter of a certain opening 5a (5) in the opening 5 is 5 adi and the hole diameter of one of the plurality of openings 6 provided on the sheet 20 side is 6 adi, the hole diameter 5 adi is , It is preferable that the hole diameter is larger than 6 adi. Regarding the size of the hole diameters of 5 adi and 6 adi in this example, if the edge of the lower hole (the edge of the opening 6a in FIG. 7B) can be seen in a plan view, the hole diameter of the upper hole (5a) is larger. If it cannot be seen, it is assumed that the hole diameter of the upper hole (5a) is smaller. Further, in a plan view, it is preferable that the opening 6a is located inside the opening 5a. As a result, the air permeability of the laminated body 1'is further improved at the portion where the opening 5a of the non-woven fabric 10 and the opening 6a of another sheet 20 overlap. Further, the overlapping openings 5a and 6a form a shadow in the overlapping portion of the openings 5a and 6a in a plan view, and the visibility of the openings is improved.

＜＜積層体１を使用した吸収性物品１００＞＞
積層体１の具体的な使用方法の一例として、吸収性物品の胴回り部に積層体１を使用する例について説明する。ここでは、吸収性物品１００として、パンツ型使い捨ておむつ１００（以下、「おむつ１００」ともいう。）を例に挙げる。図８は、おむつ１００の概略斜視図である。図９は、展開且つ伸長状態のおむつ１００を非肌側から見た概略平面図である。 << Absorbent article 100 using laminate 1 >>
As an example of a specific usage method of the laminated body 1, an example of using the laminated body 1 for the waistline portion of the absorbent article will be described. Here, as the absorbent article 100, a pants-type disposable diaper 100 (hereinafter, also referred to as “diaper 100”) will be taken as an example. FIG. 8 is a schematic perspective view of the diaper 100. FIG. 9 is a schematic plan view of the unfolded and stretched diaper 100 as viewed from the non-skin side.

ここで、上述の「展開状態」とは、おむつ１００の幅方向（左右方向）における、腹側胴回り部（後述する腹側胴回り部１２０）の両端部と、背側胴回り部（後述する背側胴回り部１３０）の両端部との接合を解き、腹側胴回り部と背側胴回り部とを分離するとともに、おむつ１００をその長手方向に開くことで、おむつ１００を平面上に展開した状態のことである。また、おむつ１００の「伸長状態」とは、おむつ１００全体（製品全体）を皺なく伸長させた状態、具体的には、おむつ１００を構成する各部材（例えば、後述する吸収性本体１１０、腹側胴回り部１２０、背側胴回り部１３０等）の寸法がその部材単体の寸法と一致又はそれに近い寸法になるまで伸長させた状態のことを言う。 Here, the above-mentioned "deployed state" refers to both ends of the ventral waist circumference portion (ventral waist circumference portion 120 described later) and the dorsal waist circumference portion (dorsal side described later) in the width direction (left-right direction) of the diaper 100. A state in which the diaper 100 is unfolded on a plane by breaking the joint between both ends of the waist circumference 130), separating the ventral waist circumference portion and the dorsal waist circumference portion, and opening the diaper 100 in the longitudinal direction thereof. Is. The "stretched state" of the diaper 100 is a state in which the entire diaper 100 (the entire product) is stretched without wrinkles, specifically, each member constituting the diaper 100 (for example, the absorbent main body 110 described later, the belly). It refers to a state in which the dimensions of the side waist circumference 120, the dorsal waist circumference 130, etc.) are extended until they match or are close to the dimensions of the member alone.

おむつ１００は、図８に示されるパンツ型状態において、互いに交差する上下方向と幅方向と前後方向とを有している。同おむつ１００は、着用者の股間部にあてがわれ***液等の液体を吸収する吸収性本体１１０と、着用者の腹側部を覆う腹側胴回り部１２０と、着用者の背側部を覆う背側胴回り部１３０とを有する、所謂３ピースタイプの使い捨ておむつである。 The diaper 100 has a vertical direction, a width direction, and a front-back direction that intersect each other in the pants-shaped state shown in FIG. The diaper 100 has an absorbent main body 110 that is applied to the crotch part of the wearer and absorbs liquid such as excrement, a ventral waist circumference 120 that covers the ventral side of the wearer, and a dorsal part of the wearer. It is a so-called three-piece type disposable diaper having a dorsal waist circumference 130 that covers the diaper.

図９の展開状態では、おむつ１００は、互いに交差する長手方向と左右方向を有する。この展開状態における長手方向の一方側のことを「腹側」若しくは「前側」とも呼び、長手方向の他方側のことを「背側」若しくは「後側」とも呼ぶ。展開状態の長手方向は、パンツ型状態の上下方向に沿った方向である。また、厚さ方向は、図８に示すように、おむつ１００を構成する資材が積層された方向である。厚さ方向において着用者に接する側を肌側とし、その反対側を非肌側とする In the unfolded state of FIG. 9, the diaper 100 has a longitudinal direction and a left-right direction that intersect each other. One side in the longitudinal direction in this unfolded state is also referred to as "ventral" or "anterior", and the other side in the longitudinal direction is also referred to as "dorsal" or "rear". The longitudinal direction in the unfolded state is the direction along the vertical direction in the pants-shaped state. Further, as shown in FIG. 8, the thickness direction is the direction in which the materials constituting the diaper 100 are laminated. The side in contact with the wearer in the thickness direction is the skin side, and the opposite side is the non-skin side.

図９の展開状態では、略平行に配置された腹側胴回り部１２０と背側胴回り部１３０との間に吸収性本体１１０が掛け渡された状態で固定されている。おむつ１００の着用時には、吸収性本体１１０がその長手方向の中央部Ｃ１０で二つ折りされ、互いに対向する腹側胴回り部１２０と背側胴回り部１３０とが、左右方向側縁部１２０ｅ及び１３０ｅで互いに接合されることにより、図８に示されるような胴周り開口ＢＨ及び一対の脚周り開口ＬＨが形成された着用状態のおむつ１００となる。 In the unfolded state of FIG. 9, the absorbent main body 110 is fixed in a state of being hung between the ventral waist circumference 120 and the dorsal waist circumference 130 arranged substantially in parallel. When the diaper 100 is worn, the absorbent body 110 is folded in half at the central portion C10 in the longitudinal direction thereof, and the ventral waist circumference 120 and the dorsal waist circumference 130 facing each other are mutually opposed at the lateral edge portions 120e and 130e. By being joined, the diaper 100 is in a worn state in which the waist opening BH and the pair of leg openings LH as shown in FIG. 8 are formed.

吸収性本体１１０は、液体を吸収する吸収性コア１１１を有している。吸収性コア１１１は液体吸収性素材を積層してなる部材であり、尿等の***物を吸収することができる。液体吸収性素材としては、例えば、パルプ繊維等の液体吸収性繊維を使用することができる。なお、吸収性コア１１１は、液体吸収性粒状物として例えば高吸収性ポリマーを含有していてもよいし、または、液体吸収性繊維及び液体吸収性粒状物以外の液体吸収性素材を含んでいてもよい。 The absorbent body 110 has an absorbent core 111 that absorbs the liquid. The absorbent core 111 is a member formed by laminating a liquid absorbent material, and can absorb excrement such as urine. As the liquid-absorbing material, for example, a liquid-absorbing fiber such as pulp fiber can be used. The absorbent core 111 may contain, for example, a highly absorbent polymer as the liquid absorbent granules, or may contain a liquid absorbent material other than the liquid absorbent fibers and the liquid absorbent granules. May be good.

腹側胴回り部１２０は、着用者の腹側の胴回りを覆う部位であり、厚さ方向において非肌側に配置された不織布１２１と、不織布１２１よりも肌側に配置されたシート１２２と、不織布１２１とシート１２２との間に設けられた複数の弾性部材１２３を有している。 The ventral waist circumference 120 is a portion that covers the ventral waist circumference of the wearer, and is a non-woven fabric 121 arranged on the non-skin side in the thickness direction, a sheet 122 arranged on the skin side of the non-woven fabric 121, and a non-woven fabric. It has a plurality of elastic members 123 provided between the 121 and the sheet 122.

同様に、背側胴回り部１３０は、着用者の背側の胴回りを覆う部位であり、厚さ方向において非肌側に配置された不織布１３１と、不織布１３１よりも着用者の肌側に配置されたシート１３２と、不織布１３１とシート１３２との間に設けられた複数の弾性部材１３３を有している。また、背側胴回り部１３０の非肌側の面には、後処理テープ１３５（テープ部材に相当）が設けられている。 Similarly, the dorsal waist circumference 130 is a portion that covers the wearer's back waist circumference, and is arranged on the non-skin side of the non-woven fabric 131 in the thickness direction and on the skin side of the wearer rather than the non-woven fabric 131. It has a sheet 132 and a plurality of elastic members 133 provided between the non-woven fabric 131 and the sheet 132. Further, a post-treatment tape 135 (corresponding to a tape member) is provided on the non-skin side surface of the dorsal waist circumference 130.

本実施形態では、おむつ１００の胴回り部（腹側胴回り部１２０及び背側胴回り部１３０）にそれぞれ積層体１を用いている。すなわち、不織布１２１、１３１は、複数の開孔５を有する不織布１０で構成されており、シート１２２、１３２はシート２０で構成されており、複数の弾性部材１２３、１３３は、弾性部材３０で構成されている。 In the present embodiment, the laminated body 1 is used for the waist circumference portion (ventral waist circumference portion 120 and the dorsal waist circumference portion 130) of the diaper 100, respectively. That is, the non-woven fabrics 121 and 131 are made of a non-woven fabric 10 having a plurality of openings 5, the sheets 122 and 132 are made of a sheet 20, and the plurality of elastic members 123 and 133 are made of an elastic member 30. Has been done.

複数の開孔５を有する不織布１２１、１３１は、それぞれ、開孔が設けられていないシート１２２、１３２よりも非肌側に配置されている。これにより、外側から開孔５があることを視認できる。また、非開孔のシート１２２、１３２が肌側にあることで、肌当たりがよく、肌を傷つけないようにできる。 The non-woven fabrics 121 and 131 having the plurality of holes 5 are arranged on the non-skin side of the sheets 122 and 132 having no holes, respectively. As a result, it is possible to visually recognize that there is an opening 5 from the outside. Further, since the non-perforated sheets 122 and 132 are on the skin side, the skin feels good and the skin can be prevented from being damaged.

おむつ１００において、複数の弾性部材１２３は、弾性を有する糸状の部材であり、不織布１２１とシート１２２の間で、上下方向に並んで配置されるとともに、左右方向に伸長した状態で固定されている。すなわち、左右方向は積層体１の長辺方向に相当し、上下方向は積層体１の短辺方向に相当する。また、複数の弾性部材１３３は、不織布１３１とシート１３２の間において、上下方向に並んで配置されるとともに、左右方向に伸長した状態で固定されている。これにより、腹側胴回り部１２０、及び、背側胴回り部１３０に、左右方向の伸縮性が付与されている。 In the diaper 100, the plurality of elastic members 123 are thread-like members having elasticity, are arranged side by side in the vertical direction between the non-woven fabric 121 and the sheet 122, and are fixed in a state of being extended in the horizontal direction. .. That is, the left-right direction corresponds to the long side direction of the laminated body 1, and the vertical direction corresponds to the short side direction of the laminated body 1. Further, the plurality of elastic members 133 are arranged side by side in the vertical direction between the non-woven fabric 131 and the sheet 132, and are fixed in a state of being extended in the horizontal direction. As a result, the ventral waist circumference 120 and the dorsal waist circumference 130 are provided with elasticity in the left-right direction.

また、腹側胴回り部１２０の不織布１２１（１０）には複数の開孔５が設けられており、シート１２２とは複数の弾性部材１２３の周囲に直接塗布されたホットメルト接着剤によって接合されている。同様に、背側胴回り部１３０の不織布１３１（１０）には複数の開孔５が設けられており、シート１３２とは複数の弾性部材１３３の周囲に直接塗布されたホットメルト接着剤によって接合されている。 Further, the non-woven fabric 121 (10) of the ventral waist circumference 120 is provided with a plurality of openings 5, and is joined to the sheet 122 by a hot melt adhesive directly applied around the plurality of elastic members 123. There is. Similarly, the non-woven fabric 131 (10) of the dorsal waist circumference 130 is provided with a plurality of openings 5, and is joined to the sheet 132 by a hot melt adhesive directly applied around the plurality of elastic members 133. ing.

このように、積層体１をおむつ１００の胴回り部に用いることにより、複数の開孔５が変形しやすい（閉じやすい）ので、胴回り部の開孔５からのホットメルト接着剤の滲み出しを抑制することができる。 In this way, by using the laminated body 1 for the waistline portion of the diaper 100, the plurality of openings 5 are easily deformed (easily closed), so that the hot melt adhesive does not seep out from the waistline portion 5 of the waistline portion. can do.

また、不織布１２１、１３１には、上下方向（図３の短辺方向に相当）及び左右方向（図３の長辺方向に相当）に、それぞれ、開孔５のピッチ（ピッチＰ１）よりも小さいピッチ（ピッチＰ２）で溶融部４が複数設けられている。不織布１２１、１３１に複数の開孔５が設けられていても、複数の溶融部4が設けられていることにより、強度（剛性）を確保することができる。また、開孔５の縁部５ｅ以外の部位に溶融部４が設けられていることにより、開孔５の収縮を阻害しない。 Further, the non-woven fabrics 121 and 131 are smaller than the pitch (pitch P1) of the holes 5 in the vertical direction (corresponding to the short side direction in FIG. 3) and the horizontal direction (corresponding to the long side direction in FIG. 3), respectively. A plurality of fused portions 4 are provided at a pitch (pitch P2). Even if the non-woven fabrics 121 and 131 are provided with a plurality of openings 5, the strength (rigidity) can be ensured by providing the plurality of molten portions 4. Further, since the melting portion 4 is provided at a portion other than the edge portion 5e of the opening 5, the contraction of the opening 5 is not hindered.

なお、上下方向において、溶融部４の並ぶピッチＰ２が開孔５の並ぶピッチＰ１より小さいため、上下方向に隣接する開孔５の間には、必ず溶融部４が位置している（図３の短辺方向を参照）。 Since the pitch P2 in which the melting portions 4 are lined up is smaller than the pitch P1 in which the openings 5 are lined up in the vertical direction, the melting portions 4 are always located between the openings 5 adjacent to each other in the vertical direction (FIG. 3). See short side direction).

仮に、上下方向に隣接する開孔５の間に溶融部４が存在しない場合、その部位の資材強度が弱い為、上下方向に引っ張られた際（例えばおむつ１００の引き上げ時）に、隣接する開孔５の間で破れてしまうおそれがある。 If the molten portion 4 does not exist between the openings 5 adjacent in the vertical direction, the material strength of that portion is weak, so that the adjacent openings are opened when the diaper 100 is pulled in the vertical direction (for example, when the diaper 100 is pulled up). There is a risk of tearing between the holes 5.

これに対し、本実施形態では、上下方向において、隣接する開孔５の間には、必ず溶融部４が配置されている。これにより、上下方向の強度を高めることができ、上下方向に隣接する開孔５の間の領域で破れることを抑制できる。 On the other hand, in the present embodiment, the melting portion 4 is always arranged between the adjacent openings 5 in the vertical direction. As a result, the strength in the vertical direction can be increased, and tearing in the region between the openings 5 adjacent to each other in the vertical direction can be suppressed.

後処理テープ１３５は、使用後のおむつ１００を廃棄する際におむつ１００を丸めた状態に保持するための部材であり、前述したように、背側胴回り部１３０の左右方向の中央において、不織布１３１の非肌側の面に設けられている（図９参照）。 The post-treatment tape 135 is a member for holding the diaper 100 in a rolled state when the used diaper 100 is discarded. As described above, the non-woven fabric 131 is located at the center of the dorsal waist circumference 130 in the left-right direction. It is provided on the non-skin side surface of the diaper (see FIG. 9).

図１０は、展開状態の後処理テープ１３５の概略斜視図である。また、図１１は図９のＡ−Ａ概略断面図である。なお、図１１では吸収性本体１１０の図示を省略している。 FIG. 10 is a schematic perspective view of the post-processing tape 135 in the unfolded state. Further, FIG. 11 is a schematic cross-sectional view taken along the line AA of FIG. Note that FIG. 11 omits the illustration of the absorbent body 110.

後処理テープ１３５は、テープ本体１３５ａと、支持部１３５ｂと、摘まみ部１３５ｃを有している。 The post-treatment tape 135 has a tape body 135a, a support portion 135b, and a knob portion 135c.

テープ本体１３５ａは、細長い帯状の部材である。おむつ１００に設けられたテープ本体１３５ａは、図１１に示すように、長手方向に折り畳まれた状態となっている。すなわち、折り畳まれた状態のテープ本体１３５ａにおいて、互いに対向する面（支持部１３５ｂに対向する面も含む）における少なくとも一部には剥離可能な粘着強度の粘着層（不図示）が設けられていて、これにより、テープ本体１３５ａは、折り畳まれた状態に仮固定されている。 The tape body 135a is an elongated strip-shaped member. As shown in FIG. 11, the tape body 135a provided on the diaper 100 is in a state of being folded in the longitudinal direction. That is, in the folded tape body 135a, at least a part of the surfaces facing each other (including the surface facing the support portion 135b) is provided with a peelable adhesive layer (not shown). As a result, the tape body 135a is temporarily fixed in the folded state.

支持部１３５ｂは、テープ本体１３５ａを支持する部位であり、本実施形態では、テープ本体１３５ａの端部において二股（テープ本体１３５ａの表裏方向）に分岐した部位である。換言すると、支持部１３５ｂの両端の間にテープ本体１３５ａの一端が接続されている。また、図１１に示すように、テープ本体１３５ａとは反対側の支持部１３５ｂの面は、背側胴回り部１３０の非肌側の面（すなわち開孔５を有する不織布１３１の非肌側の面）に、ホットメルト接着剤等で剥離不能に固定（接合）されている。これにより、後処理テープ１３５（支持部１３５ｂ）と、不織布１３１との間に接合領域１３６が形成されている。 The support portion 135b is a portion that supports the tape main body 135a, and in the present embodiment, is a portion that is bifurcated (front and back directions of the tape main body 135a) at the end portion of the tape main body 135a. In other words, one end of the tape body 135a is connected between both ends of the support portion 135b. Further, as shown in FIG. 11, the surface of the support portion 135b opposite to the tape main body 135a is the non-skin side surface of the dorsal waist circumference 130 (that is, the non-skin side surface of the non-woven fabric 131 having the opening 5). ), It is fixed (joined) in a non-peelable manner with a hot melt adhesive or the like. As a result, a bonding region 136 is formed between the post-treatment tape 135 (support portion 135b) and the non-woven fabric 131.

摘まみ部１３５ｃは、後処理テープ１３５（テープ本体１３５ａ）を引き剥がす際に指で把持する部位であり、テープ本体１３５ａにおいて支持部１３５ｂとは反対側の端部に設けられている。 The knob portion 135c is a portion to be gripped by a finger when the post-treatment tape 135 (tape body 135a) is peeled off, and is provided at an end portion of the tape body 135a opposite to the support portion 135b.

かかる後処理テープ１３５の各部材の素材としては、ポリエチレンやポリプロピレン等の樹脂素材を例示できるが、何等これに限らない。例えば、紙等のパルプ素材でもよい。 Examples of the material of each member of the post-treatment tape 135 include resin materials such as polyethylene and polypropylene, but the material is not limited thereto. For example, a pulp material such as paper may be used.

図１２Ａ〜図１２Ｃは、後処理テープ１３５を引き剥がすときの様子を示す概略図である。 12A to 12C are schematic views showing a state when the post-treatment tape 135 is peeled off.

使用後のおむつ１を廃棄する際には、摘まみ部１３５ｃを摘まんで支持部１３５ｂから離れる方向に向けて引っ張る。すると、図１２Ａ〜図１２Ｃに示すように、折り畳まれたテープ本体１３５ａが次第に剥離していく。 When disposing of the used diaper 1, the knob portion 135c is picked and pulled in a direction away from the support portion 135b. Then, as shown in FIGS. 12A to 12C, the folded tape body 135a is gradually peeled off.

そして、図１２Ｃに示すように、テープ本体１３５ａを完全に剥がした後、吸収性本体１１０が内側になるようにしつつ長手方向に丸めたおむつ１００に対して、テープ本体１３５ａを巻き回すことにより、おむつ１００を丸めた状態に保持することができる。 Then, as shown in FIG. 12C, after the tape body 135a is completely peeled off, the tape body 135a is wound around the diaper 100 rolled in the longitudinal direction while keeping the absorbent body 110 inside. The diaper 100 can be held in a rolled state.

ここで、不織布１３１（１０）は、接合領域１３６（後処理テープ１３５と不織布１３１との接合領域）の少なくとも一部に、溶融部４を有することが望ましい。溶融部４と接合領域１３６が接合されることで、不織布１３１の強度が増し、後処理テープ１３５を剥がす際に、不織布１３１が破れることを抑制できる。 Here, it is desirable that the non-woven fabric 131 (10) has a molten portion 4 in at least a part of the bonding region 136 (the bonding region between the post-treatment tape 135 and the non-woven fabric 131). By joining the molten portion 4 and the bonding region 136, the strength of the non-woven fabric 131 is increased, and it is possible to prevent the non-woven fabric 131 from being torn when the post-treatment tape 135 is peeled off.

また、図１１において、不織布１３１とシート１３２は、弾性部材１３３の周囲に直接塗布されたホットメルト接着剤（不図示）で接合されている。そして、厚さ方向において、支持部１３５ｂ（後処理テープ１３５）と不織布１３１との接合領域１３６と、不織布１３１とシート１３２との接合領域（ここでは弾性部材１３３）とが一部重なっている。このように、厚さ方向において、接合領域１３６と、不織布１３１とシート１３２との接合領域とが少なくとも一部重なっていることが望ましい。これにより後処理テープ１３５を剥がす際に、不織布１３１のみが引っ張られないため、不織布１３１が破れにくい。また、後処理テープ１３５を剥がしやすい。 Further, in FIG. 11, the non-woven fabric 131 and the sheet 132 are joined by a hot melt adhesive (not shown) directly applied around the elastic member 133. Then, in the thickness direction, the bonding region 136 between the support portion 135b (post-treatment tape 135) and the non-woven fabric 131 and the bonding region between the non-woven fabric 131 and the sheet 132 (here, the elastic member 133) partially overlap. As described above, it is desirable that the bonding region 136 and the bonding region between the non-woven fabric 131 and the sheet 132 overlap at least partially in the thickness direction. As a result, when the post-treatment tape 135 is peeled off, only the non-woven fabric 131 is not pulled, so that the non-woven fabric 131 is not easily torn. In addition, the post-treatment tape 135 can be easily peeled off.

また、上述したように、不織布１３１とシート１３２は、弾性部材１３３の周囲に塗布されたホットメルト接着剤で接合されており、弾性部材１３３は左右方向に沿って配置されているため、不織布１３１とシート１３２との接合領域（換言すると弾性部材１３３）は、後処理テープ１３５を左右方向に跨いでいる（図９参照）。（後処理テープ１３５周辺の）不織布１３１は、後処理テープ１３５の引っ張る力により、後処理テープ１３５側に引っ張られ、開孔５を起点に破れるおそれがある。そこで、後処理テープ１３５の引っ張る力に抗うように、不織布１３１とシート１３２との接合領域を後処理テープ１３５の左右方向に跨がせると、（後処理テープ１３５周辺の）開孔５から不織布１５１が破れるのを抑制できる。 Further, as described above, the nonwoven fabric 131 and the sheet 132 are joined by a hot melt adhesive applied around the elastic member 133, and the elastic member 133 is arranged along the left-right direction, so that the nonwoven fabric 131 The bonding region between the sheet 132 and the sheet 132 (in other words, the elastic member 133) straddles the post-treatment tape 135 in the left-right direction (see FIG. 9). The non-woven fabric 131 (around the post-treatment tape 135) may be pulled toward the post-treatment tape 135 by the pulling force of the post-treatment tape 135 and may be torn from the opening 5. Therefore, when the bonding region between the non-woven fabric 131 and the sheet 132 is straddled in the left-right direction of the post-treatment tape 135 so as to resist the pulling force of the post-treatment tape 135, the non-woven fabric is formed through the openings 5 (around the post-treatment tape 135). It is possible to prevent 151 from being torn.

さらに、本実施形態の後処理テープ１３５では、支持部１３５ｂがテープ本体１３５ａの端部で二股に分岐しているので、テープ本体１３５ａが引っ張られる際に、支持部１３５ｂの両端部の間（支持部１３５ｂとテープ本体１３５ａとの接続部）において引っ張り応力が最も大きくなる。これにより、テープ本体１３５ａを引っ張っても、支持部１３５ｂの端部からの剥がれが生じにくい。 Further, in the post-treatment tape 135 of the present embodiment, since the support portion 135b is bifurcated at the end of the tape main body 135a, when the tape main body 135a is pulled, it is between both ends of the support portion 135b (support). The tensile stress is greatest at the connection portion between the portion 135b and the tape body 135a). As a result, even if the tape body 135a is pulled, peeling from the end portion of the support portion 135b is unlikely to occur.

以上説明したように、本実施形態のおむつ１００では、胴回り部（腹側胴回り部１２０、背側胴回り部１３０）に積層体１を用いていることにより、不織布１２１、１３１の開孔５が閉じやすくなっているので、胴回り部の開孔５からのホットメルト接着剤の滲み出しを抑制することができる。 As described above, in the diaper 100 of the present embodiment, since the laminated body 1 is used for the waist circumference portion (ventral waist circumference portion 120, dorsal waist circumference portion 130), the openings 5 of the nonwoven fabrics 121 and 131 are closed. Since it is easy to use, it is possible to suppress the exudation of the hot melt adhesive from the opening 5 of the waist circumference portion.

なお、上術の実施形態では、複数の開孔を有する不織布１２１、１３１を、それぞれ、シート１２２、１３２よりも非肌側に配置していたが、これには限られず、不織布１２１、１３１をシート１２２、１３２よりも肌側に配置してもよい。この場合、開孔５が肌側に存在することにより、汗をより吸収しやすくなる。 In the embodiment of the upper technique, the nonwoven fabrics 121 and 131 having a plurality of openings are arranged on the non-skin side of the sheets 122 and 132, respectively, but the present invention is not limited to this, and the nonwoven fabrics 121 and 131 are used. It may be arranged closer to the skin than the sheets 122 and 132. In this case, the presence of the opening 5 on the skin side makes it easier to absorb sweat.

また、本実施形態では、おむつ１００の胴回り部（腹側胴回り部１２０、背側胴回り部１３０）に積層体１を用いていたが、変形例の積層体１´（図５参照）を用いてもよい。これにより、通気性をさらに向上させることができる。また、柔軟性を向上させることができ、開孔５がより閉じやすくなる。 Further, in the present embodiment, the laminated body 1 is used for the waist circumference portion (ventral side waist circumference portion 120, dorsal waist circumference portion 130) of the diaper 100, but the laminated body 1'(see FIG. 5) of the modified example is used. May be good. Thereby, the air permeability can be further improved. In addition, the flexibility can be improved, and the opening 5 becomes easier to close.

＜＜積層体１を使用した吸収性物品２００＞＞
次に、積層体１の別の使用方法の一例について説明する。ここでは、吸収性物品２００として、パンツ型使い捨ておむつ２００（以下、「おむつ２００」ともいう。）を例に挙げる。図１３は、展開且つ伸長状態のおむつ２００を肌側から見た概略平面図である。また、図１４は、図１３のＢ−Ｂ概略断面図である。また、図１５はホットメルト接着剤の塗布領域の説明図である。 << Absorbent article 200 using laminate 1 >>
Next, an example of another method of using the laminated body 1 will be described. Here, as the absorbent article 200, a pants-type disposable diaper 200 (hereinafter, also referred to as “diaper 200”) will be taken as an example. FIG. 13 is a schematic plan view of the unfolded and stretched diaper 200 as viewed from the skin side. Further, FIG. 14 is a schematic cross-sectional view taken along the line BB of FIG. Further, FIG. 15 is an explanatory view of a coating area of the hot melt adhesive.

この、おむつ２００もおむつ１００と同様に、パンツ型状態（不図示）において、互いに交差する上下方向と幅方向と前後方向とを有しており、図１３の展開状態において、互いに交差する長手方向と左右方向と厚さ方向を有している。各方向の定義はおむつ１００と同じである、 Like the diaper 100, the diaper 200 also has a vertical direction, a width direction, and a front-rear direction that intersect each other in the pants type state (not shown), and in the unfolded state of FIG. 13, the longitudinal directions that intersect each other. It has a left-right direction and a thickness direction. The definition of each direction is the same as diaper 100,

おむつ２００は、吸収性本体２１０と、トップシート２２０と、カバーシート２３０と、フィルム２４０と、脚回り弾性部材２５０（弾性部材に相当）と、を有している。なお、ここでは、説明の簡略化のため、胴回りの弾性部材等の図示を省略している。 The diaper 200 has an absorbent main body 210, a top sheet 220, a cover sheet 230, a film 240, and an elastic member around the legs 250 (corresponding to an elastic member). In addition, here, for the sake of simplification of the description, the illustration of the elastic member around the waist is omitted.

図１３の展開状態から、吸収性本体２１０の長手方向の中央部で二つ折りされるとともに、この二つ折りの状態において互いに対向する胴回り部が溶着や接着等の接合手段を用いて接合されると、これら胴回り部同士が環状に繋がって、パンツ型状態（不図示）になる。 From the unfolded state of FIG. 13, when the absorbent body 210 is folded in half at the central portion in the longitudinal direction, and in this folded state, the waist circumferences facing each other are joined by means of joining means such as welding or adhesion. , These waist circumferences are connected in a ring shape to form a pants type state (not shown).

吸収性本体（吸収性コア）２１０は、尿等の***物を吸収する機能を有し、図１３に示されるように平面視略長方形をなし、その長手方向をおむつ１の縦方向に沿わせつつ横方向の中央に配置されている。吸収性本体２１０は、パルプ繊維等の液体吸収性繊維を所定形状に成形したものであり、その内部には高吸収性ポリマー（所謂ＳＡＰ）等が混入されている。 The absorbent body (absorbable core) 210 has a function of absorbing excrement such as urine, has a substantially rectangular shape in a plan view as shown in FIG. 13, and has its longitudinal direction along the vertical direction of the diaper 1. It is placed in the center of the horizontal direction. The absorbent main body 210 is formed by molding a liquid absorbent fiber such as pulp fiber into a predetermined shape, and a highly absorbent polymer (so-called SAP) or the like is mixed therein.

トップシート２２０は、吸収性本体２１０の厚さ方向の肌側に配置され、おむつ２００の着用時に着用者の肌と当接する液透過性のシート部材である。本実施形態のトップシート２２０は、積層体１のシート２０で構成された非開孔のシートである。 The top sheet 220 is a liquid-permeable sheet member that is arranged on the skin side of the absorbent body 210 in the thickness direction and comes into contact with the wearer's skin when the diaper 200 is worn. The top sheet 220 of the present embodiment is a non-perforated sheet composed of the sheet 20 of the laminated body 1.

カバーシート２３０は、おむつ２００において最も非肌側に配置されている。本実施形態のカバーシート２３０は、積層体１の不織布１０で構成されており、複数の開孔５（図１５参照）と複数の溶融部（ここでは不図示）を有している。 The cover sheet 230 is arranged on the non-skin side of the diaper 200. The cover sheet 230 of the present embodiment is composed of the non-woven fabric 10 of the laminated body 1, and has a plurality of openings 5 (see FIG. 15) and a plurality of molten portions (not shown here).

フィルム２４０は、吸収性本体２１０の非肌側に配置された液不透過性の非開孔のシート部材であり、例えば、樹脂フィルムによって形成されている。フィルム２４０が設けられることによって、吸収性本体２１０によって吸収された尿等の水分が着用者の衣服側に移動（浸透）することが抑制される。また、フィルム２４０を設けていることによって、ホットメルト接着剤の滲み出しを抑制できる（後述）。フィルム２４０は、トップシート２２０とカバーシート２３０との間の１部分（吸収性本体２１０よりも広い範囲）に設けられている。また、フィルム２４０の非肌側の面には図柄（不図示）が施されている。図柄としては、模様、絵、記号、文字などであり、特に限定されない。本実施形態のおむつ２００では、カバーシート２３０が複数の開孔５を有することにより、フィルム２４０の図柄を視認しやすい。 The film 240 is a liquid-impermeable, non-perforated sheet member arranged on the non-skin side of the absorbent body 210, and is formed of, for example, a resin film. By providing the film 240, moisture such as urine absorbed by the absorbent body 210 is suppressed from moving (permeating) to the wearer's clothing side. Further, by providing the film 240, it is possible to suppress the exudation of the hot melt adhesive (described later). The film 240 is provided in one portion (a wider range than the absorbent body 210) between the top sheet 220 and the cover sheet 230. Further, a pattern (not shown) is applied to the non-skin side surface of the film 240. The design includes a pattern, a picture, a symbol, a character, and the like, and is not particularly limited. In the diaper 200 of the present embodiment, the cover sheet 230 has a plurality of openings 5, so that the design of the film 240 can be easily visually recognized.

脚回り弾性部材２５０は、吸収性本体２１０を跨いで、おむつ１の左右方向の一端から他端に亘って設けられている。また、図１３に示すように、おむつ２００において脚回り弾性部材２５０は、湾曲して配置されている。 The leg circumference elastic member 250 is provided straddling the absorbent main body 210 from one end to the other end in the left-right direction of the diaper 1. Further, as shown in FIG. 13, in the diaper 200, the leg elastic member 250 is arranged in a curved shape.

ところで、このように脚回り弾性部材２５０を湾曲させて配置する場合、脚回り弾性部材２５０の周囲にホットメルト接着剤を直接塗布できない。このため、不織布（ここではカバーシート２３０）に脚回り弾性部材２５０を固定するためのホットメルト接着剤を塗布することになる。この場合、湾曲した脚回り弾性部材２５０を確実に固定させるには、ホットメルト接着剤の塗布量を多くする必要がある。しかし、ホットメルト接着剤の塗布量を多くすると、カバーシート２３０の開孔５からホットメルト接着剤が滲み出すおそれが大きくなる。特に、股下部分では、後述するように脚回り弾性部材２５０の伸長倍率が小さいため、開孔５が閉じにくく、ホットメルト接着剤の滲み出すおそれが大きい。 By the way, when the leg elastic member 250 is arranged in a curved shape in this way, the hot melt adhesive cannot be directly applied around the leg elastic member 250. Therefore, a hot melt adhesive for fixing the leg elastic member 250 is applied to the non-woven fabric (here, the cover sheet 230). In this case, it is necessary to increase the amount of the hot melt adhesive applied in order to securely fix the curved leg circumference elastic member 250. However, if the amount of the hot melt adhesive applied is increased, the risk of the hot melt adhesive oozing out from the opening 5 of the cover sheet 230 increases. In particular, in the inseam portion, since the extension ratio of the leg circumference elastic member 250 is small as described later, the opening 5 is difficult to close and there is a high possibility that the hot melt adhesive will seep out.

そこで、本実施形態では、トップシート２２０とカバーシート２３０の間の一部（具体的には吸収性本体２１０と重なる部位）に非開孔のフィルム２４０を設けている。そして、カバーシート２３０とフィルム２４０の非肌側の面をホットメルト接着剤（Ｈａとする）で接合し、脚回り弾性部材２５０とフィルム２４０の肌側の面とをホットメルト接着剤（Ｈｂとする）で固定（接合）している。ホットメルト接着剤Ｈａとホットメルト接着剤Ｈｂの塗布条件などについては後述する。 Therefore, in the present embodiment, the non-perforated film 240 is provided in a part between the top sheet 220 and the cover sheet 230 (specifically, a portion overlapping the absorbent main body 210). Then, the cover sheet 230 and the non-skin side surface of the film 240 are joined with a hot melt adhesive (referred to as Ha), and the leg elastic member 250 and the skin side surface of the film 240 are joined with a hot melt adhesive (Hb). It is fixed (joined) with). The application conditions of the hot melt adhesive Ha and the hot melt adhesive Hb will be described later.

脚回り弾性部材２５０は、左右方向の一端から他端の間で、異なる伸長倍率で伸長された状態で配置されている。より具体的には、脚回り弾性部材２５０のうち、フィルム２４０と重なる部位の伸長倍率が、フィルム２４０と重ならない部位の伸長倍率よりも小さくなるように配置されている。なお、弾性部材の「伸長倍率」とは、製造時に自然長（無負荷状態の長さ）に対して何倍に伸ばして（引っ張って）設けたかを示す指標である。例えば、弾性部材を自然長のまま設けた場合の伸長倍率は１倍であり、自然長の２倍の長さまで引っ張って設けた場合の伸長倍率は２倍である。よって、伸長倍率が大きいほど、収縮力が大きいことになる。 The leg elastic member 250 is arranged between one end and the other end in the left-right direction in a state of being extended at different extension ratios. More specifically, the stretch ratio of the portion of the leg elastic member 250 that overlaps with the film 240 is smaller than the elongation ratio of the portion that does not overlap with the film 240. The "elongation ratio" of the elastic member is an index indicating how many times the elastic member is stretched (pulled) with respect to its natural length (length in a no-load state) at the time of manufacture. For example, when the elastic member is provided with its natural length, the elongation ratio is 1 time, and when it is pulled to a length twice the natural length, the extension ratio is 2 times. Therefore, the larger the elongation ratio, the larger the contraction force.

脚回り弾性部材２５０のうち、フィルム２４０と重なる部位は、左右方向の中央部において吸収性本体２１０と重複する部分を有している。このことから、この部位の伸長倍率を小さくすることによって、吸収性本体２１０が左右方向に過度に収縮することを抑制することができる。また、フィルム２４０と重なる部位ではホットメルト接着剤（ここではホットメルト接着剤Ｈｂ）が滲み出しにくいので、ホットメルト接着剤の滲み出しを抑制するために開孔５を収縮させる必要が少ない。よって、脚回り弾性部材２５０の伸長倍率が小さくてもよい。なお、フィルム２４０と重なる部位のうちで、左右方向の位置によって伸長倍率が異なっていてもよい。例えば、左右向中央部における伸長倍率が左右向両端部における伸長倍率より小さくなっていてもよい。これにより、応力に勾配が生じ、フィット性を損なうことなく吸収性本体２１０の収縮を抑制することができる。 The portion of the leg elastic member 250 that overlaps with the film 240 has a portion that overlaps with the absorbent main body 210 at the central portion in the left-right direction. From this, it is possible to prevent the absorbent main body 210 from contracting excessively in the left-right direction by reducing the elongation ratio of this portion. Further, since the hot melt adhesive (here, the hot melt adhesive Hb) does not easily exude at the portion overlapping with the film 240, it is not necessary to shrink the opening 5 in order to suppress the exudation of the hot melt adhesive. Therefore, the extension ratio of the leg elastic member 250 may be small. In the portion overlapping with the film 240, the elongation ratio may differ depending on the position in the left-right direction. For example, the extension ratio at the center portion facing left and right may be smaller than the extension ratio at both ends facing left and right. As a result, a gradient is generated in the stress, and the shrinkage of the absorbent main body 210 can be suppressed without impairing the fit.

また、脚回り弾性部材２５０のうち、フィルム２４０と重ならない部位は、伸長倍率が大きくなるように配置されている。この部位の伸長倍率を大きくすることによって、収縮力を強くして、脚回りのフィット性を高めることができる。また、カバーシート２３０の開孔５を閉じやすくできる。 Further, in the leg elastic member 250, the portion that does not overlap with the film 240 is arranged so that the elongation ratio is large. By increasing the extension ratio of this portion, the contraction force can be strengthened and the fit around the legs can be improved. Further, the opening 5 of the cover sheet 230 can be easily closed.

本実施形態において、ホットメルト接着剤Ｈａは、カバーシート２３０とフィルム２４０の間（すなわち、フィルム２４０の配置部分）に塗布している。ホットメルト接着剤Ｈｂは、カバーシート２３０上にフィルム２４０を配置した後、図１５に示すように、脚回り弾性部材２５０の配置箇所（図において斜線で示す領域）に塗布している。塗布の形式としては、螺旋状に塗布できるスパイラル塗工、波状に塗布できるオメガ塗工やコントロールシーム塗工等の公知の塗布方法を例示できる。 In the present embodiment, the hot melt adhesive Ha is applied between the cover sheet 230 and the film 240 (that is, the portion where the film 240 is arranged). After arranging the film 240 on the cover sheet 230, the hot melt adhesive Hb is applied to the arrangement portion (the region indicated by the diagonal line in the figure) of the leg circumference elastic member 250 as shown in FIG. Examples of the coating type include known coating methods such as spiral coating that can be applied in a spiral shape, omega coating that can be applied in a wavy shape, and control seam coating.

また、ホットメルト接着剤Ｈａの目付（単位面積当たりの塗布量）を、ホットメルト接着剤Ｈｂの目付よりも小さくしている。具体的には、本実施形態において、ホットメルト接着剤Ｈａの目付は０．５〜２ｇ／ｍ２であり、ホットメルト接着剤Ｈｂの目付は４〜１０ｇ／ｍ２である。 Further, the basis weight of the hot melt adhesive Ha (coating amount per unit area) is made smaller than the basis weight of the hot melt adhesive Hb. Specifically, in the present embodiment, the basis weight of the hot melt adhesive Ha is 0.5 to 2 g / m 2 , and the basis weight of the hot melt adhesive Hb is 4 to 10 g / m 2 .

このように、カバーシート２３０とフィルム２４０とを接合するホットメルト接着剤Ｈａの目付を小さくすることにより、カバーシート２３０（不織布１０）の開孔５からホットメルト接着剤が滲み出すことを抑制できる。特に、脚回り弾性部材２５０と吸収性本体２１０とが厚さ方向に重なる部分では、脚回り弾性部材２５０の伸長倍率が小さく、さらに吸収性本体２１と重なっているので、カバーシート２３０が収縮しにくい（開孔５が閉じにくい）。よって、ホットメルト接着剤Ｈａの目付を小さくすることによって、この部分の開孔５からの滲み出しを抑制できる。 By reducing the texture of the hot melt adhesive Ha that joins the cover sheet 230 and the film 240 in this way, it is possible to prevent the hot melt adhesive from seeping out from the openings 5 of the cover sheet 230 (nonwoven fabric 10). .. In particular, in the portion where the elastic leg member 250 and the absorbent body 210 overlap in the thickness direction, the extension ratio of the elastic leg member 250 is small and the elastic body 21 overlaps with the absorbent body 21, so that the cover sheet 230 contracts. Difficult (opening 5 is difficult to close). Therefore, by reducing the basis weight of the hot melt adhesive Ha, it is possible to suppress the exudation of this portion from the opening 5.

一方、ホットメルト接着剤Ｈｂの目付を大きくすることにより、脚回り弾性部材２５０をカバーシート２３０やフィルム２４０に確実に固定させることができる。また、フィルム２４０が配置されている領域では、ホットメルト接着剤Ｈｂの目付が大きくても、フィルム２４０が非肌側に位置しているので、ホットメルト接着剤Ｈｂの滲み出しがない。また、フィルム２４０が配置されていない領域では、脚回り弾性部材２５０の伸長倍率が大きくカバーシート２３０が収縮しやすい（開孔５が閉じやすい）。よって、ホットメルト接着剤Ｈｂの滲み出しを抑制できる。 On the other hand, by increasing the basis weight of the hot melt adhesive Hb, the leg elastic member 250 can be reliably fixed to the cover sheet 230 or the film 240. Further, in the region where the film 240 is arranged, even if the basis weight of the hot melt adhesive Hb is large, the film 240 is located on the non-skin side, so that the hot melt adhesive Hb does not exude. Further, in the region where the film 240 is not arranged, the extension ratio of the leg elastic member 250 is large and the cover sheet 230 is easily contracted (the opening 5 is easily closed). Therefore, the exudation of the hot melt adhesive Hb can be suppressed.

＝＝＝その他の実施形態＝＝＝
以上、本発明の実施形態について説明したが、上記の実施形態は、本発明の理解を容易にするためのものであり、本発明を限定して解釈するためのものではない。また、本発明は、その趣旨を逸脱することなく、変更や改良され得るとともに、本発明にはその等価物が含まれるのはいうまでもない。 === Other embodiments ===
Although the embodiments of the present invention have been described above, the above-described embodiments are for facilitating the understanding of the present invention, and are not for limiting the interpretation of the present invention. Further, it is needless to say that the present invention can be changed or improved without departing from the spirit thereof, and the present invention includes an equivalent thereof.

１ 積層体、１´ 積層体
４ 溶融部、
５ 開孔、５ｅ 縁部、
５ａ 開孔、５ａｅ 縁部、５ａｈ 非溶融部、
６ 開孔、
１０ 不織布、２０ シート、３０ 弾性部材、
６０ 非開孔領域、
１００ おむつ（吸収性物品）、
１１０ 吸収性本体、
１２０ 腹側胴回り部、１２０ｅ 左右方向側縁部、
１２１ 不織布、１２２ シート、１２３ 弾性部材、
１３０ 背側胴回り部、１３０ｅ 左右方向側縁部、
１３１ 不織布、１３２ シート、１３３ 弾性部材、
１３５ 後処理テープ（テープ部材）、
１３５ａ テープ本体、１３５ｂ 支持部、
１３５ｃ 摘まみ部、
２００ おむつ（吸収性物品）、
２１０ 吸収性本体、２２０ トップシート（シート）、
２３０ カバーシート（不織布）、２４０ フィルム、
２５０ 脚回り弾性部材（弾性部材） 1 Laminated body, 1'Laminated body 4 Melted part,
5 openings, 5e edges,
5a perforation, 5ae edge, 5ah non-melting,
6 opening,
10 non-woven fabric, 20 sheets, 30 elastic members,
60 non-perforated area,
100 diapers (absorbent articles),
110 absorbent body,
120 ventral girth, 120e left-right side edge,
121 non-woven fabric, 122 sheets, 123 elastic members,
130 Dorsal girth, 130e Left-right side edge,
131 non-woven fabric, 132 sheet, 133 elastic member,
135 Post-treatment tape (tape member),
135a tape body, 135b support,
135c knob,
200 diapers (absorbent articles),
210 absorbent body, 220 top sheet (sheet),
230 cover sheet (nonwoven fabric), 240 film,
250 Leg circumference elastic member (elastic member)

Claims (22)

複数の開孔を有する不織布と、
シートと、
伸長した状態で前記不織布と前記シートとの間に挟まれた弾性部材と、
を備え、前記不織布と前記シートとがホットメルト接着剤により互いに接合されるとともに、前記ホットメルト接着剤と、前記複数の開孔のうちの或る開孔とが少なくとも一部重なる領域を有する積層体であって、
前記不織布は、
前記或る開孔に隣接する縁部の少なくとも一部に非溶融部を有し、
前記縁部以外の部位に溶融部を有する、
ことを特徴とする積層体。 Non-woven fabric with multiple openings and
Sheet and
An elastic member sandwiched between the non-woven fabric and the sheet in a stretched state,
The nonwoven fabric and the sheet are bonded to each other by a hot melt adhesive, and the hot melt adhesive and a certain opening among the plurality of openings overlap at least partially. The body
The non-woven fabric is
It has a non-melted portion at least in a part of the edge adjacent to the certain opening.
It has a molten portion at a portion other than the edge portion.
A laminated body characterized by that. 請求項１に記載の積層体であって、
伸長状態において、前記或る開孔の面積が、前記溶融部の面積よりも大きい、
ことを特徴とする積層体。 The laminated body according to claim 1.
In the extended state, the area of the certain opening is larger than the area of the molten portion.
A laminated body characterized by that. 請求項１又は請求項２に記載の積層体であって、
所定方向に並ぶ前記溶融部のピッチが、前記所定方向に並ぶ前記開孔のピッチよりも小さい、
ことを特徴とする積層体。 The laminated body according to claim 1 or 2.
The pitch of the molten portions arranged in a predetermined direction is smaller than the pitch of the openings arranged in the predetermined direction.
A laminated body characterized by that. 請求項１から請求項３のいずれか１項に記載の積層体であって、
前記不織布に滑剤が含まれている、
ことを特徴とする積層体。 The laminated body according to any one of claims 1 to 3.
The non-woven fabric contains a lubricant,
A laminated body characterized by that. 請求項１から請求項４のいずれか１項に記載の積層体であって、
前記不織布を構成する繊維の断面が円形又は楕円形である、
ことを特徴とする積層体。 The laminated body according to any one of claims 1 to 4.
The cross section of the fibers constituting the non-woven fabric is circular or elliptical.
A laminated body characterized by that. 請求項１から請求項５のいずれか１項に記載の積層体であって、
伸長状態において、前記開孔の平面形状が円形又は楕円形である、
ことを特徴とする積層体。 The laminated body according to any one of claims 1 to 5.
In the extended state, the planar shape of the opening is circular or elliptical.
A laminated body characterized by that. 請求項１から請求項６のいずれか１項に記載の積層体であって、
前記不織布は、スパンボンド不織布である、
ことを特徴とする積層体。 The laminated body according to any one of claims 1 to 6.
The non-woven fabric is a spunbonded non-woven fabric.
A laminated body characterized by that. 請求項１から請求項７のいずれか１項に記載の積層体であって、
前記シートは、複数の開孔を有する、
ことを特徴とする積層体。 The laminated body according to any one of claims 1 to 7.
The sheet has a plurality of openings.
A laminated body characterized by that. 請求項８に記載の積層体であって、
前記不織布の前記或る開孔の少なくとも一部は、前記シートのうち開孔のない非開孔領域と重なる、
ことを特徴とする積層体。 The laminated body according to claim 8.
At least a part of the certain perforations of the non-woven fabric overlaps with the non-perforated region of the sheet.
A laminated body characterized by that. 請求項９に記載の積層体であって、
前記或る開孔に隣接する前記縁部と、前記非開孔領域とは、互いに接合されていない非接合部を有する、
ことを特徴とする積層体。 The laminated body according to claim 9.
The edge portion adjacent to the certain opening and the non-opening region have a non-joining portion that is not joined to each other.
A laminated body characterized by that. 請求項８から請求項１０のいずれか１項に記載の積層体であって、
伸長状態において、前記或る開孔の孔径は、前記シートに形成された開孔の孔径よりも大きく、
平面視において、前記シートに形成された一つの開孔が、前記或る開孔の内側に位置する、
ことを特徴とする積層体。 The laminated body according to any one of claims 8 to 10.
In the extended state, the hole diameter of the certain hole is larger than the hole diameter of the hole formed in the sheet.
In a plan view, one opening formed in the sheet is located inside the certain opening.
A laminated body characterized by that. 互いに直交する上下方向、左右方向、前後方向を有し、
液体を吸収する吸収性本体と、
請求項１から請求項１０のいずれか１項の積層体と、
を備えたことを特徴とする吸収性物品。 It has vertical, horizontal, and front-back directions that are orthogonal to each other.
Absorbent body that absorbs liquid and
The laminate according to any one of claims 1 to 10 and
An absorbent article characterized by being equipped with. 請求項１２に記載の吸収性物品であって、
前記上下方向において、隣接する開孔の間に溶融部が位置している、
ことを特徴とする吸収性物品。 The absorbent article according to claim 12.
In the vertical direction, the melting part is located between the adjacent openings.
An absorbent article characterized by that. 請求項１１から請求項１３のいずれか１項に記載の吸収性物品であって、
前記不織布は前記シートよりも非肌側に配置されている、
ことを特徴とする吸収性物品。 The absorbent article according to any one of claims 11 to 13.
The non-woven fabric is arranged on the non-skin side of the sheet.
An absorbent article characterized by that. 請求項１２から請求項１４のいずれか１項に記載の吸収性物品であって、
前記不織布と前記シートとの間の少なくとも1部に非開孔のフィルムが挟まれており、
前記不織布は、前記フィルムの非肌側の面に、前記ホットメルト接着剤で接合され、
前記弾性部材は、前記フィルムの肌側の面に前記ホットメルト接着剤で接合されている、
ことを特徴とする吸収性物品。 The absorbent article according to any one of claims 12 to 14.
A non-perforated film is sandwiched between at least one part between the non-woven fabric and the sheet.
The non-woven fabric is bonded to the non-skin side surface of the film with the hot melt adhesive.
The elastic member is bonded to the skin side surface of the film with the hot melt adhesive.
An absorbent article characterized by that. 請求項１５に記載の吸収性物品であって、
前記弾性部材は、前記吸収性本体を跨いで、前記吸収性物品の前記左右方向の一端から他端に亘って設けられており、
前記弾性部材のうち、前記フィルムと重なる部位の伸長倍率は、前記フィルムと重ならない部位の伸長倍率よりも小さい、
ことを特徴とする吸収性物品。 The absorbent article according to claim 15.
The elastic member straddles the absorbent body and is provided from one end to the other end of the absorbent article in the left-right direction.
The elongation ratio of the portion of the elastic member that overlaps with the film is smaller than the elongation ratio of the portion that does not overlap with the film.
An absorbent article characterized by that. 請求項１５又は請求項１６に記載の吸収性物品であって、
前記前記不織布と前記フィルムを接合する前記ホットメルト接着剤の目付が、前記フィルムと前記弾性部材を接合する前記ホットメルト接着剤の目付よりも小さい、
ことを特徴とする吸収性物品。 The absorbent article according to claim 15 or 16.
The texture of the hot melt adhesive that joins the non-woven fabric and the film is smaller than the texture of the hot melt adhesive that joins the film and the elastic member.
An absorbent article characterized by that. 項請求項１５から請求項１７の何れか１項に記載の吸収性物品であって、
前記フィルムには図柄が施されている、
ことを特徴とする吸収性物品。 The absorbent article according to any one of claims 15 to 17.
The film has a pattern,
An absorbent article characterized by that. 請求項１１から請求項１８のいずれか１項に記載の吸収性物品であって、
前記不織布の非肌側には、前記吸収性物品を廃棄する際に前記吸収性物品を丸めた状態に保持するためのテープ部材が接合されており、
前記不織布は、前記テープ部材との接合領域の少なくとも一部に、前記溶融部を有する、
ことを特徴とする吸収性物品。 The absorbent article according to any one of claims 11 to 18.
A tape member for holding the absorbent article in a rolled state when the absorbent article is discarded is bonded to the non-skin side of the non-woven fabric.
The non-woven fabric has the melted portion in at least a part of the bonding region with the tape member.
An absorbent article characterized by that. 請求項１９に記載の吸収性物品であって、
前記厚さ方向において、前記テープ部材と前記不織布との接合領域と、前記不織布と前記シートとの接合領域とが少なくとも一部重なっている、
ことを特徴とする吸収性物品。 The absorbent article according to claim 19.
In the thickness direction, at least a part of the bonding region between the tape member and the non-woven fabric and the bonding region between the non-woven fabric and the sheet overlap.
An absorbent article characterized by that. 請求項２０に記載の吸収性物品であって、
前記不織布と前記シートとの接合領域は、前記テープ部材を前記左右方向に跨いでいる、
ことを特徴とする吸収性物品。 The absorbent article according to claim 20.
The bonding region between the non-woven fabric and the sheet straddles the tape member in the left-right direction.
An absorbent article characterized by that. 請求項１１から請求項１３のいずれか１項に記載の吸収性物品であって、
前記不織布は前記シートよりも肌側に配置されている、
ことを特徴とする吸収性物品。 The absorbent article according to any one of claims 11 to 13.
The non-woven fabric is arranged on the skin side of the sheet.
An absorbent article characterized by that.
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