JP2023514858A - 個々のスプールから巻き出された弾性ストランドを有するエラストマー積層体を作製するための方法及び装置 - Google Patents
個々のスプールから巻き出された弾性ストランドを有するエラストマー積層体を作製するための方法及び装置 Download PDFInfo
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Abstract
Description
本明細書において「吸収性物品」とは、主な機能が汚れ及び***物を吸収かつ保持することである消費者製品を指すために用いられる。吸収性物品には、生理用ナプキン、タンポン、パンティライナー、***間装置、創傷包帯、拭き取り用品、テープ式おむつ及びおむつパンツを含む使い捨ておむつ、再利用可能な外側カバーを有するおむつ用のインサート、成人失禁用おむつ、成人失禁用パッド、並びに成人失禁用パンツが含まれ得る。本明細書で「使い捨て」という用語は、洗濯されること又は他の方法で吸収性物品として再生又は再使用されることが一般に意図されていない吸収性物品を説明するために用いられる(例えば、これらは1回の使用後に廃棄されるように意図され、またリサイクル、堆肥化、ないしは別の方法で環境に適合する方法で処分するように構成されてもよい)。
Claims (15)
- エラストマー積層体を組み立てる方法であって、
それぞれが単一の第1の弾性ストランド(208a)を含む第1のスプール(302a)を与える工程と、
前記第1のスプール(302a)から前記第1の弾性ストランド(208a)を巻き出す工程と、
前記第1の弾性ストランド(208a)を、ストランドガイド(310)を通って機械方向に前進させることによって、隣り合う第1の弾性ストランド(208a)を横断方向に互いから第1の距離で離間させる工程と、
前記第1の弾性ストランド(208a)を前記機械方向に伸長する工程と、
前記第1の弾性ストランド(208a)を第1の基材(204)及び第2の基材(206)と組み合わせてエラストマー積層体(200)を形成する工程と、
前記エラストマー積層体(200)を集積する工程と、を含む、方法。 - 前記伸張された第1の弾性ストランド(208a)を収縮させて、ひだ状に寄せ集まったエラストマー積層体(200)を形成させるために、前記エラストマー積層体(200)の張力を低減させる工程と、
前記ひだ状に寄せ集まったエラストマー積層体(200)を集積する工程と、を更に含む、請求項1に記載の方法。 - 前記ひだ状に寄せ集まったエラストマー積層体(200)を伸長する工程と、
前記伸長されたひだ状に寄せ集まったエラストマー積層体を吸収性物品の構成部品に変換する工程と、を更に含む、請求項2に記載の方法。 - 前記伸張された第1の弾性ストランド(208a)が収縮することを防止するために前記エラストマー積層体(200)の張力を維持する工程と、
張力下で前記エラストマー積層体(200)を集積する工程と、を更に含む、請求項1~3のいずれか一項に記載の方法。 - 前記第1の弾性ストランド(208a)を巻き出す工程が、前記第1のスプール(302a)を回転させることを更に含む、請求項1~4のいずれか一項に記載の方法。
- 前記エラストマー積層体(200)を複数のレーンにスリット分けする工程を更に含む、請求項1~5のいずれか一項に記載の方法。
- 前記第1の弾性ストランド(208a)がスピン仕上げを含まない、請求項1~6のいずれか一項に記載の方法。
- 前記集積する工程が、前記エラストマー積層体(200)をロール(200R)に巻回することを更に含む、請求項1~7のいずれか一項に記載の方法。
- 前記集積する工程が、前記エラストマー積層体(200)を容器内に綱状に結ぶことを更に含む、請求項1~7のいずれか一項に記載の方法。
- 前記第1のスプール(302a)を与える工程が、約100~約3000個の第1のスプール(302a)を与えることを更に含む、請求項1~9のいずれか一項に記載の方法。
- 前記第1の距離が約0.5mm~約2mmである、請求項1~10のいずれか一項に記載の方法。
- それぞれが単一の第2の弾性ストランド(208b)を含む第2のスプール(302b)を与える工程と、
前記第2のスプール(302b)を回転させることによって、前記第2のスプール(302b)から前記第2の弾性ストランド(208b)を巻き出す工程と、
隣り合う前記第2の弾性ストランド(208b)を前記横断方向に互いから第2の距離で離間させる工程と、
前記第2の弾性ストランド(208b)を前記機械方向に伸長する工程と、
前記第2の弾性ストランド(208b)を前記第1の基材(204)及び前記第2の基材(206)と組み合わせる工程と、を更に含む、請求項1~11のいずれか一項に記載の方法。 - 前記第1の距離が前記第2の距離と異なる、請求項12に記載の方法。
- 前記第1の弾性ストランド(208a)が第1のデシテックスを有し、前記第2の弾性ストランド(208b)が第2のデシテックスを有し、前記第1のデシテックスと前記第2のデシテックスとは等しくない、請求項12又は13に記載の方法。
- 前記組み合わせる工程が、前記第1の弾性ストランド(208a)、前記第1の基材(204)、及び前記第2の基材(206)のうちの少なくとも1つに接着剤を塗布すること、及び/又は前記第1の基材(204)と前記第2の基材(206)とを互いに機械的に結合することを更に含む、請求項1~14のいずれか一項に記載の方法。
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US202062984837P | 2020-03-04 | 2020-03-04 | |
US62/984,837 | 2020-03-04 | ||
PCT/US2021/020369 WO2021178340A1 (en) | 2020-03-04 | 2021-03-02 | Methods and apparatuses for making elastomeric laminates with elastic strands unwound from individual spools |
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EP (1) | EP4114331A1 (ja) |
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US11642249B2 (en) | 2016-12-20 | 2023-05-09 | The Procter & Gamble Company | Methods and apparatuses for making elastomeric laminates with elastic strands provided with a spin finish |
EP4180013A1 (en) * | 2021-11-12 | 2023-05-17 | Fameccanica.Data S.p.A. | Method for manufacturing sanitary articles, method for applying a glue pattern on a web, and related apparatuses |
EP4180012A1 (en) * | 2021-11-12 | 2023-05-17 | Fameccanica.Data S.p.A. | A washable absorbent garment, and method and apparatus for producing washable absorbent garments |
WO2024006716A1 (en) | 2022-06-30 | 2024-01-04 | The Procter & Gamble Company | Absorbent articles with absorbent chassis and belt bonding arrangements and frangible pathways |
Citations (7)
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US20210275362A1 (en) | 2021-09-09 |
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