JP2020508181A - 弾性分布を有するシャーシ付き物品、吸収性コアならびにこれらを製作するシステムおよび方法 - Google Patents
弾性分布を有するシャーシ付き物品、吸収性コアならびにこれらを製作するシステムおよび方法 Download PDFInfo
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- JP2020508181A JP2020508181A JP2019546902A JP2019546902A JP2020508181A JP 2020508181 A JP2020508181 A JP 2020508181A JP 2019546902 A JP2019546902 A JP 2019546902A JP 2019546902 A JP2019546902 A JP 2019546902A JP 2020508181 A JP2020508181 A JP 2020508181A
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- elastic
- absorbent article
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- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/18—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side
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- 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
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
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- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/144—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers using layers with different mechanical or chemical conditions or properties, e.g. layers with different thermal shrinkage, layers under tension during bonding
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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
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- 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
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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
- A61F13/15577—Apparatus or processes for manufacturing
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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
- A61F13/15577—Apparatus or processes for manufacturing
- A61F2013/15821—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing
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Abstract
Description
本願は、2017年2月22日に出願された米国特許仮出願第62/462,349号(係属中)の優先権および権益主張出願であり、この米国特許仮出願を全ての目的に関して参照により引用し、その記載内容全体を本明細書の一部とする。
Claims (56)
- 吸収性物品であって、
第1の布地層と第2の布地層との間にサンドイッチされた内側弾性構造体を備えた多層身体側シャーシと、
外側弾性構造体を備えた多層外側シャーシと、
前記多層身体側シャーシと前記多層外側シャーシとの間に位置決めされた吸収性部材とを有し、
前記内側弾性構造体は、前記吸収性部材の上方に突き出された環状カフを形成するよう前記第1および前記第2の布地層内に支持されている、吸収性物品。 - 前記多層身体側シャーシは、前記内側弾性構造体の内方に位置決めされかつ前記吸収性部材の上方に配置された開口部を有する、請求項1記載の吸収性物品。
- 前記環状カフは、前記吸収性部材の周囲の内方に位置する前記吸収性部材の中央部分を包囲した複数の離隔した弾性ストランドを有する伸縮性環状カフである、請求項1または2記載の吸収性物品。
- 前記内側弾性構造体は、前記吸収性部材の互いに反対側の横方向側縁周りに2つの横方向に離隔した場所に向かって先細りになる複数の離隔した弾性体を含む少なくとも2つの組をなす弾性分布を有し、弾性分布の一方の組は、前記吸収性部材の端領域の近くで前記先細り領域相互間を横断し、他方の組は、前記吸収性部材の反対側の第2の端領域の近くで前記先細り領域相互間を横切っている、請求項1〜3のうちいずれか一に記載の吸収性物品。
- 前記内側弾性構造体は、前記吸収性部材の互いに反対側の横方向側縁周りの2つの横方向に離隔した場所に向かって先細りになる複数の離隔した弾性体を含む少なくとも2つの組をなす弾性分布を有し、第1の組の少なくとも1つの弾性体は、第2の組の少なくとも1つの弾性体と交差し、第1の組の少なくとも1つの弾性体は、前記第2の組の少なくとも1つの弾性体と交差していない、請求項1〜4のうちいずれか一に記載の吸収性物品。
- 前記内側弾性構造体は、2つの組をなす弾性分布を有し、弾性分布の第1の組は、弾性分布の第2の組の曲線状区分と相互にかつ周期的に先細りになったり末広がりになったりする曲線状区分を含み、弾性分布の前記第1および前記第2の組の各々は、多数の相互に離隔した弾性ストランドを含み、前記弾性分布の組が先細りになってゆく場所のところでは、前記第1の組の弾性体は、前記第2の組の弾性体と交差している、請求項1〜4のうちいずれか一に記載の吸収性物品。
- 接合領域では、前記多層身体側シャーシは、前記多層外側シャーシおよび前記吸収性部材に接合され、非接合領域では、前記多層身体側シャーシは、前記多層外側シャーシから取り外されかつ前記吸収性部材から取り外され、しかも該吸収性部材から遠ざかるよう動くことができ、前記環状カフは、前記非接合領域内に配置され、前記環状カフは、該環状カフと前記吸収性部材との間に三次元空間を提供するよう前記吸収性部材から動くことができる、請求項1〜6のうちいずれか一に記載の吸収性物品。
- 前記非接合領域は、前記環状カフの外側に延びており、前記非接合領域は、前記環状カフから横方向にかつ長手方向に間隔を置いて位置する外周部を有し、前記非接合領域の前記外周部は、前記接合領域の内周部と一致している、請求項7記載の吸収性物品。
- 前記多層身体側シャーシは、前記接合領域が前記多層外側シャーシまたは前記吸収性部材に一様に接合されている、請求項7または8記載の吸収性物品。
- 前記多層外側シャーシは、互いに離隔した弾性体が前記多層外側シャーシの一方の側部領域から横方向にかつ前記吸収性部材の下を前記吸収性部材の反対側の側部領域まで横断する弾性構造体の領域を有する、請求項1〜9のうちいずれか一に記載の吸収性物品。
- 前記多層外側シャーシは、弾性構造体の第1の前記領域および前記第1の領域から離隔した弾性構造体の第2の前記領域を有し、前記弾性構造体の前記領域の前記弾性体は、前記吸収性部材の端領域の下をかつ前記環状カフの複数の部分の下を横断している、請求項10記載の吸収性物品。
- 前記弾性構造体の前記領域の前記弾性体は、前記環状カフの内周縁の外方に位置決めされている、請求項11記載の吸収性物品。
- 前記多層外側シャーシに設けられた開口部が前記内周縁の内方に配置され、前記開口部は、前記吸収性部材の前記横方向幅の1/2よりも横方向かつ長手方向に広い、請求項12記載の吸収性物品。
- 前記環状カフの内側幅は、前記吸収性部材の前記横方向幅の少なくとも60%よりも横方向にかつ長手方向に大きい、請求項1〜13のうちいずれか一に記載の吸収性物品。
- 前記環状カフは、前記吸収性部材の前記横方向幅の66%を超える最大直径および最小直径を備えた楕円の形をしており、前記環状カフの前記内周縁は、前記環状カフが前記吸収性部材の上方に位置決めされるよう前記吸収性部材の横方向かつ長手方向広がり内に配置されている、請求項14記載の吸収性物品。
- 前記第1および前記第2の布地層は、不織布から成る、請求項1〜15のうちいずれか一に記載の吸収性物品。
- 前記内側弾性構造体は、互いにオーバーラップした少なくとも2つの組をなす弾性ストランドを含む、請求項1〜16のうちいずれか一に記載の吸収性物品。
- 前記少なくとも2つの組をなす弾性ストランドは、正弦波または波状パターンに配列されている、請求項17記載の吸収性物品。
- 弾性ストランドの前記組の各ストランド相互間の間隔は、変化している、請求項17または18記載の吸収性物品。
- 弾性ストランドの前記組の各ストランド相互間の間隔は、変化していない、請求項17または18記載の吸収性物品。
- 前記開口部は、前記内側弾性構造体の前記弾性ストランドの組相互間の空間内に配置されている、請求項2記載の吸収性物品。
- 弾性ストランドの前記組は、前記開口部と交差していない、請求項21記載の吸収性物品。
- 前記開口部は、長円形、円、正方形、長方形、またはこれらの任意の近似形状の形をしている、請求項2記載の吸収性物品。
- 前記多層外側シャーシは、第4の布地層に接合された第3の布地層、および前記第3の布地層と前記第4の布地層との間にサンドイッチされた複数の弾性ストランドを有する、請求項1〜10のうちいずれか一に記載の吸収性物品。
- 前記第3および前記第4の布地層の各々は、不織布から成る、請求項24記載の吸収性物品。
- 前記外側弾性ストランドは、互いに対して平行でありまたは全体として平行な仕方で配置されている、請求項24記載の吸収性物品。
- 前記外側弾性ストランドは、前記吸収性物品の前側および後側ウエスト縁に平行な状態で前記吸収性物品内に横方向に延びている、請求項26記載の吸収性物品。
- 前記吸収性物品の股領域には外側弾性ストランドがない、請求項26記載の吸収性物品。
- 前記外側弾性ストランド相互間の間隔は、変化している、請求項24記載の吸収性物品。
- 前記外側弾性ストランド相互間の間隔は、変化していない、請求項24記載の吸収性物品。
- 前記吸収性部材は、トップシート層、バックシート層、および前記トップシート層と前記バックシート層との間に配置された吸収性コアの組立体から成る、請求項1〜30のうちいずれか一に記載の吸収性物品。
- 前記トップシート層は、親水性かつ透水性の不織布であり、前記バックシート層は、不透水性フィルムであり、前記吸収性コアは、毛羽立ちパルプ、不織布、超吸水性ポリマー粒子、捕捉不織布層、分布不織布層、ティッシュ、またはこれらの組み合わせから成る、請求項31記載の吸収性物品。
- 前記多層身体側シャーシは、前記吸収性部材および前記多層外側シャーシに部分的に接合されている、請求項1〜32のうちいずれか一に記載の吸収性物品。
- 前記開口部の周りの前記多層身体側シャーシ伸縮性構造体の領域は、前記多層外側シャーシおよび前記吸収性部材に接合されていない、請求項2記載の吸収性物品。
- 前記環状カフは、前記吸収性部材の360°エンクロージャを提供している、請求項1〜34のうちいずれか一に記載の吸収性物品。
- 前記内側弾性構造体は、前記開口部の寸法および前記吸収性物品の脚用カフ切り取り部の寸法形状にマッチしたパターンをなして配列された弾性ストランドの組を含み、前記弾性ストランドの前記組は、前記開口部の縁を包囲している、請求項2記載の吸収性物品。
- 前記開口部の長さは、前記吸収性物品の全長の20%〜85%であり、前記開口部の幅は、前記吸収性物品の幅の最も狭い部分の30%〜80%である、請求項2記載の吸収性物品。
- 前記吸収性物品は、前記多層身体側シャーシが前記多層外側シャーシに接合された接合ゾーンおよび前記多層身体側シャーシが前記多層外側シャーシまたは前記吸収性部材に接合されていない非接合ゾーンを有する、請求項2記載の吸収性物品。
- 前記開口部は、前記非接合ゾーンと一致している、請求項38記載の吸収性物品。
- 前記多層外側シャーシは、前記接合ゾーンのところで前記多層身体側シャーシに弾性的に接合されている、請求項38記載の吸収性物品。
- 前記接合ゾーンは、前記多層身体側シャーシの表面積の少なくとも40%と一致している、請求項38記載の吸収性物品。
- 前記外側伸縮性構造体に接合されていない前記多層身体側シャーシの部分は、前記環状カフを形成している、請求項38記載の吸収性物品。
- 前記多層外側シャーシの弾性体は、前記吸収性部材の下に位置決めされた弾性ストランドを含み、前記吸収性部材の下に位置決めされた前記弾性ストランドは、前記吸収性部材に弾性的に結合されている、請求項38記載の吸収性物品。
- 吸収性物品であって、
内側伸縮性シャーシを有し、
前記内側伸縮性シャーシを貫通して形成された開口部を有し、
前記内側伸縮性シャーシに部分的に接合された外側伸縮性シャーシを有し、前記開口部は、前記内側伸縮性シャーシに接合されていない前記外側伸縮性シャーシの部分と一致し、
前記内側伸縮性シャーシと前記外側伸縮性シャーシとの間に位置決めされた吸収性部材を有し、前記内側伸縮性シャーシは、前記吸収性部材の上方に位置決めされた伸縮性環状カフを形成し、前記伸縮性環状カフの前記内周縁は、前記開口部を画定している、吸収性物品。 - 吸収性物品を形成する方法であって、
内側弾性構造体を備えた多層身体側シャーシを、外側弾性構造体を備えた多層外側シャーシに部分的に接合するステップと、
吸収性部材を前記多層身体側シャーシと前記多層外側シャーシとの間に位置決めするステップとを含み、
前記多層身体側シャーシは、前記吸収性部材の上方に突き出された環状カフを形成する、方法。 - 吸収性物品を形成する方法であって、
フォームローラを用いて内側シート、弾性ストランドの組、および内側支持シートを互いに接合するステップを含み、弾性体ガイドが弾性ストランドの前記組を前記内側シートと前記内側支持シートとの間にパターンをなして被着させるために用いられ、
穴カッタを用いて穴を切断形成して前記内側シートおよび前記内側支持シートを貫通して開口部を形成し、それにより前記多層身体側シャーシを形成するステップと、
前記第1のフォームローラを用いて前記吸収性部材、外側支持シート、および外側弾性ストランドを前記内側伸縮性構造体に接合するステップを含み、
第2のフォームローラを用いて外側シートを前記外側弾性ストランドおよび前記外側支持シートに接合して複合製品を形成するステップを含み、
前記複合製品を裁断し、折り曲げ、そして封止して前記吸収性物品を形成するステップを含む、請求項45記載の方法。 - 吸収性物品を製造するシステムであって、前記システムは、
内側シートウェブ、内側支持シートウェブ、弾性ストランドの組、吸収性部材、外側支持シート、および外側弾性ストランドに作動的に結合された第1のフォームローラと、
外側シートウェブに作動的に結合されるとともに前記第1のフォームローラの造形物を受け入れるよう位置決めされた第2のフォームローラとを含む、システム。 - 弾性ストランドの前記組を前記内側シートウェブと前記内側支持シートウェブとの間にパターンをなして被着させるようになった弾性体ガイドをさらに含む、請求項47記載のシステム。
- 前記内側シートウェブおよび前記内側支持シートウェブを貫通して開口部を形成するようになった穴カッタをさらに含む、請求項46または47記載のシステム。
- 吸収性物品を形成するよう前記複合製品を裁断し、折り曲げ、そして封止するようになった1つまたは2つ以上の装置をさらに含む、請求項46〜48のうちいずれか一に記載のシステム。
- 吸収性コアであって、
1つまたは2つ以上の折り曲げコア区分を有し、前記1つまたは2つ以上の折り曲げ区分は、上方に付勢され、前記上方に付勢された折り曲げコア区分は、1つまたは2つ以上のカフを形成している、吸収性コア。 - 前記吸収性コア内に設けられた流体分布チャネルをさらに有する、請求項51記載の吸収性コア。
- 前記折り曲げコア区分は、前記折り曲げコア区分に接合された弾性体を介して付勢される、請求項51記載の吸収性コア。
- 改造型吸収性コアを製作する方法であって、
吸収性コアにスリットを入れるステップと、
2つのスリット相互間に位置決めされた前記スリット入り吸収性コアの部分を折り曲げるステップとを含む、方法。 - 前記吸収性コアの前記折り曲げ部分に弾性を持たせて1つまたは2つ以上のカフを形成するステップをさらに含む、請求項54記載の方法。
- 前記吸収性コア内に流体分布チャネルを設けるステップをさらに含む、請求項55記載の方法。
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