JP4580931B2 - 吸収性物品のための実質的に均一なギャザーを有する縁部折り畳み部及びその作成方法 - Google Patents
吸収性物品のための実質的に均一なギャザーを有する縁部折り畳み部及びその作成方法 Download PDFInfo
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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
- A61F13/20—Tampons, e.g. catamenial tampons; Accessories therefor
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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
- A61F13/15203—Properties of the article, e.g. stiffness or absorbency
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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
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- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61F13/00—Bandages or dressings; Absorbent pads
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- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15707—Mechanical treatment, e.g. notching, twisting, compressing, shaping
- A61F13/15747—Folding; Pleating; Coiling; Stacking; Packaging
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- A—HUMAN NECESSITIES
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- 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
- A61F13/49007—Form-fitting, self-adjusting disposable diapers
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- A—HUMAN NECESSITIES
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- A61F13/00—Bandages or dressings; Absorbent pads
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- A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
- A61F13/49406—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region
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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
- A61F13/56—Supporting or fastening means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
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- A—HUMAN NECESSITIES
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/36—Bending and joining, e.g. for making hollow articles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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- Y10T156/1007—Running or continuous length work
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1043—Subsequent to assembly
- Y10T156/1049—Folding only
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1051—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina by folding
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
- Y10T156/1082—Partial cutting bonded sandwich [e.g., grooving or incising]
Description
)、1996年11月21日出願)に開示されている。
次に続く縁部折り畳み部60の作成のためにシャーシ22を準備する一工程は、長手方向縁部50の少なくとも一部分を「活性化」(追加的伸張とも称される)することである。追加的伸張方法及び追加的に伸張された好適な材料は、同一出願人による米国特許第5,167,897号(ウェーバー(Weber)ら、1992年12月1日発行);米国特許出願第09/897,823号及び同第10/179,696号に記載されている。活性化又は追加的に伸張された積層体(例えば、2つのエラストマー材の間で層化されたエラストマー材を有する積層体)は、ほぼ弛緩した状態、即ち非伸張状態の非エラストマー材と共に形成される。積層体は次に追加的に伸張され、その結果、非エラストマー材はその弾性限度を超えて歪みを与えられ、概ねエラストマー材と積層されたままである、非エラストマー材の可塑的に変形された領域が作られる。いくつかの実施形態では、積層体は、エラストマー材の弾性限度まで追加的に伸張することができる。弛緩した状態の、仕上げを施された追加的に伸張された積層体において、非エラストマー材の累積の嵩は、実質的に、追加的に伸張される前の元の積層体の嵩以下であってもよい。したがって、追加的に伸張された積層体の最大弾性延伸及び弾性的延伸性は、従来のギャザー寄せ構造体よりも、大幅に大きくてもよい。活性化は、材料に伸張特性をもたらすために用いられてもよい。活性化はまた、材料に高密度部分と低密度部分を作るために用いられてもよく、その際、組み込まれた弾性体の収縮は、実質的に均一なギャザーを形成する(「均一」は、本明細書では、特定の、再現可能な又は一定した外観を有するものとして定義される)。ほとんどの例において、ギャザーのピッチは、活性化工具の歯先の間の距離によって決まる(図9〜11を参照)。ギャザーが実質的に均一に見える限り、多様且つ異なるピッチ寸法を用いてもよい。
縁部折り畳み部60を形成する別の工程において、活性化されたシャーシが切断されてもよい。前記切断工程は、次に続く折り畳み工程を助けるために組み込まれてもよく、切断は、長手方向縁部50をシャーシ上に折り畳む助けとなる。例えば、図4bでは、長手方向縁部50に実質的に垂直な、最小長さの単純な切断部64が作成される。図7bの別の実施例では、長手方向縁部50に実質的に平行な、適度な長さの単純な切断部64が作成される。図6b及び8bの更に別の実施例では、脚部開口部25を成形するより複雑な切断部64が作成される。更に、切り取り部507及び切り取り部707(即ち、廃棄材料)が取り除かれる。切断部64は、有益であり得る一方で、図2、3及び5の対応する「b」図が欠落している(即ち、図2b、3b及び5bが存在しない)ことに例示されるように、後に続く折り畳みに不可欠なものではない。
縁部折り畳み部60を形成する更に別の工程において、活性化されたシャーシが折り畳まれる。次に図2cを参照すると、長手方向縁部50の長さ全体にわたって、折り畳み部66が作成される。前記折り畳み部66は、折り畳み板又は他の既知の手法を用いて作成されてもよい。このようにして、サイドパネル30も折り重ねられる。折り畳み部66は、ここで脚部弾性部31(外側カフ弾性部としても知られる)が新たに形成された縁部折り畳み部60に近接して配置されるように、形成されてもよい。この折り畳み工程の後、最初の長手方向縁部50が内向きに動かされ、折り畳み先端部53として特定される。シャーシ22の各側部に1つの脚部弾性部31のみが示されているものの、当業者であれば、追加の脚部弾性部31もまた考慮に入れてもよいことを理解するであろう。前記脚部弾性部31がシャーシ22に適用される時、脚部弾性部31の長さのほぼ全体にわたって接着剤を塗布すること、脚部弾性部31の末端部に接着剤を塗布すること(即ち、例えば図5及び6の曲線状弾性部のための引きひも(drawstring)方法)などが挙げられるがこれらに限定されない、多数の固着手法が使用されてもよい。
縁部折り畳み部60を形成する更に別の工程において、活性化されて折り畳まれたシャーシが接着される。折り畳み部分のシャーシへの接着は、接着剤の塗布、超音波接着、圧縮接着、熱接着、高周波接着、赤外線接着、これらの組み合わせ、並びに、使用される特定の材料に対して適切な、当該技術分野で既知のあらゆる他の好適な接着手段によって実施することができる。図2d〜8dを参照すると、接着部68が示されており、脚部弾性部31に対して内向きに設けられている。
図16は、(機械方向の)活性化工程、受動的折り畳み工程(例えば、折り畳み板による)及び接着工程(例えば、圧縮ロールによる)が用いられる、図2の実施形態を作成するための折り畳み部製造プロセスの代表的な概略図を示す。
Claims (10)
- 長手方向縁部を有する吸収性物品上に縁部折り畳み部を作成する方法であって、
前記物品の長手方向縁部に対して横方向内側で且つ前記長手方向縁部から離間して活性化部分を形成するために前記吸収性物品の一部分を追加的に伸張させる工程;
折り畳み先端部を形成するために前記長手方向縁部に対して横方向内側で且つ前記長手方向縁部と平行に前記活性化部分に切断部を形成する工程;
折り畳み部長さを持つ折り畳み部を形成するために前記折り畳み先端部を内側に折り畳む工程;及び
均一なギャザーを形成するために前記折り畳み部長さの全体にわたって前記折り畳み部を接着する工程、を含む方法。 - 前記追加的に伸張させる工程が、前記吸収性物品に熱を印加して追加的な伸張を助けることを包含する、請求項1に記載の方法。
- 前記追加的に伸張させる工程の前に前記吸収性物品に熱を印加して前記追加的な伸張を助けることをさらに含む、請求項2に記載の方法。
- 前記折り畳む工程が、曲線状の折り畳み部を作ることを含む、請求項1に記載の方法。
- 前記追加的に伸張させる工程が、工具の歯先を用いて均一なギャザーを形成することを含む、請求項1に記載の方法。
- 前記接着する工程が、接着剤の塗布、超音波接着、圧縮接着、熱接着、高周波接着、赤外線接着及びこれらの組み合わせから成る群から選択される、請求項1に記載の方法。
- 前記吸収性物品が、使い捨てである、請求項1に記載の方法。
- 前記吸収性物品が、使い捨ておむつ、生理用ナプキン、パンティライナー、失禁用ブリーフ、及び失禁用下着から成る群から選択される、請求項1記載の方法。
- 前記追加的に伸張させる工程が、一対のサイドパネルの間に延びる前記吸収性物品の一部分を追加的に伸張させて前記活性化部分を形成することを含む、請求項1に記載の方法。
- 前記折り畳む工程が、一対のサイドパネルの間に延びる前記吸収性物品の一部分を折り畳んで前記活性化部分を形成することを含む、請求項1に記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US10/665,949 US7368027B2 (en) | 2003-09-18 | 2003-09-18 | Method of making an edge fold having substantially uniform gathers for absorbent article |
PCT/US2004/030896 WO2005027809A1 (en) | 2003-09-18 | 2004-09-17 | Edge fold having substantially uniform gathers for absorbent article and method for making |
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JP2007503940A JP2007503940A (ja) | 2007-03-01 |
JP4580931B2 true JP4580931B2 (ja) | 2010-11-17 |
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JP2006525550A Expired - Fee Related JP4580931B2 (ja) | 2003-09-18 | 2004-09-17 | 吸収性物品のための実質的に均一なギャザーを有する縁部折り畳み部及びその作成方法 |
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US (2) | US7368027B2 (ja) |
EP (1) | EP1663091B1 (ja) |
JP (1) | JP4580931B2 (ja) |
CN (1) | CN1842309B (ja) |
MX (1) | MXPA06002324A (ja) |
WO (1) | WO2005027809A1 (ja) |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
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US7368027B2 (en) * | 2003-09-18 | 2008-05-06 | The Procter & Gamble Company | Method of making an edge fold having substantially uniform gathers for absorbent article |
US7373698B2 (en) | 2004-06-24 | 2008-05-20 | Tyco Healthcare Retail Services Ag | Closure tabs for absorbent articles |
US8241263B2 (en) | 2005-08-26 | 2012-08-14 | Medline Industries, Inc. | Absorbent article |
US20090312736A1 (en) * | 2008-06-17 | 2009-12-17 | Arquest, Inc. | Hybrid stretch ear and absorbent article including the same |
JP5155827B2 (ja) * | 2008-11-17 | 2013-03-06 | 花王株式会社 | 使い捨ておむつ及びその製造方法 |
JP4567084B2 (ja) * | 2008-12-24 | 2010-10-20 | 花王株式会社 | 着用物品及びその製造方法 |
TWI501757B (zh) | 2008-12-24 | 2015-10-01 | Kao Corp | Wearing articles and their manufacturing methods |
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JP5465906B2 (ja) * | 2009-03-26 | 2014-04-09 | ユニ・チャーム株式会社 | 吸収性物品 |
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-
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- 2004-09-17 EP EP04784676.1A patent/EP1663091B1/en not_active Not-in-force
- 2004-09-17 JP JP2006525550A patent/JP4580931B2/ja not_active Expired - Fee Related
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US8772569B2 (en) | 2014-07-08 |
MXPA06002324A (es) | 2006-05-22 |
EP1663091B1 (en) | 2013-12-18 |
WO2005027809A1 (en) | 2005-03-31 |
JP2007503940A (ja) | 2007-03-01 |
US20080215025A1 (en) | 2008-09-04 |
CN1842309B (zh) | 2010-10-27 |
US20050065491A1 (en) | 2005-03-24 |
EP1663091A1 (en) | 2006-06-07 |
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