JP7461472B2 - 吸収性物品向けのフィルムおよび積層体 - Google Patents
吸収性物品向けのフィルムおよび積層体 Download PDFInfo
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Description
本出願は、2019年11月14日に出願された米国仮特許出願第62/935,468号、および、2020年2月14日に出願された米国仮特許出願第62/976,911号の優先権の利益を主張し、それらの両方の内容は、その全体が参照により本明細書に援用される。
Claims (23)
- 吸収性物品で使用されるフィルムであって、前記フィルムは、
第1の面、および、前記第1の面の反対側の第2の面と、
少なくとも1つの方向に2.54cm(1リニア・インチ)当たり60~120個の突起を有するパターンで配置されている複数の有孔突起であって、前記突起のそれぞれは、前記第1の面から延在する連続的な側壁部を含み、前記第2の面は、前記複数の有孔突起と位置合わせされた複数の孔、および、前記孔の間のランド区域を有している、複数の有孔突起と、
を備え、
前記フィルムは、少なくとも8g/10minのメルト・インデックスおよび少なくとも80m3/m2/minの通気性を有している、フィルム。 - 前記フィルムは、10gsmから30gsmの間の坪量を有している、請求項1に記載のフィルム。
- 吸収性物品で使用される積層体であって、前記積層体は、
第1の面、および、前記第1の面の反対側の第2の面を有するフィルム層であって、前記フィルム層は、少なくとも1つの方向に2.54cm(1リニア・インチ)当たり60~120個の突起を有するパターンで配置されている複数の有孔突起を備え、前記突起のそれぞれは、前記第1の面から延在する連続的な側壁部を含み、前記第2の面は、前記複数の有孔突起と位置合わせされた複数の孔、および、前記孔の間のランド区域を有しており、前記フィルム層は、少なくとも8g/10minのメルト・インデックスおよび少なくとも80m3/m2/minの通気性を有している、フィルム層と、
前記フィルム層の前記第2の面に積層されている不織布層であって、前記不織布層は、前記フィルム層の前記ランド区域において前記フィルム層に付着されている複数の繊維を含む、不織布層と、
を備える、積層体。 - 前記不織布層は、8gsmから60gsmの間の坪量を有している、請求項3に記載の積層体。
- 前記不織布層は、スパンボンド不織布を含む、請求項3に記載の積層体。
- 前記不織布層は、カード式不織布を含む、請求項3に記載の積層体。
- 前記不織布層は、スパンレース不織布を含む、請求項3に記載の積層体。
- 前記フィルム層は、4gsmから20gsmの間の坪量を有している、請求項3に記載の積層体。
- 前記積層体は、前記フィルム層および前記不織布層を通って延在する複数の孔をさらに含み、前記複数の孔は、少なくとも1つの方向に2.54cm(1リニア・インチ)当たり3孔から40孔の間のメッシュ数を有するパターンを有している、請求項3に記載の積層体。
- 前記積層体は、エンボス加工されたパターンを有している、請求項3に記載の積層体。
- 前記エンボス加工されたパターンは、複数の隆起部を含む、請求項10に記載の積層体。
- 前記複数の隆起部は、波状の隆起部を含む、請求項11に記載の積層体。
- 吸収性物品で使用される積層体であって、前記積層体は、
第1の面、および、前記第1の面の反対側の第2の面を有する第1のフィルム層であって、前記第1のフィルム層は、少なくとも1つの方向に2.54cm(1リニア・インチ)当たり60~120個の突起を有するパターンで配置されている第1の複数の有孔突起を備え、前記第1の複数の有孔突起のそれぞれは、前記第1の面から延在する連続的な側壁部を含み、前記第2の面は、前記第1の複数の有孔突起と位置合わせされた第1の複数の孔、および、前記第1の複数の孔のそれぞれの間の第1のランド区域を有しており、前記第1のフィルム層は、少なくとも8g/10minのメルト・インデックスおよび少なくとも80m3/m2/minの通気性を有している、第1のフィルム層と、
第1の面、および、前記第1の面の反対側の第2の面を有する第2のフィルム層であって、前記第2のフィルム層は、少なくとも1つの方向に2.54cm(1リニア・インチ)当たり3~40個の突起を有するパターンで配置されている第2の複数の有孔突起を備え、前記第2の複数の有孔突起のそれぞれは、前記第1の面から延在する連続的な側壁部を含み、前記第2の面は、前記第2の複数の有孔突起と位置合わせされた第2の複数の孔、および、前記第2の複数の孔のそれぞれの間の第2のランド区域を有している、第2のフィルム層と、
を備え、
前記第1のフィルム層の前記第2の面は、前記第2のフィルム層の前記第2の面に付着されている、積層体。 - 前記第1のフィルム層は、4gsmから20gsmの間の坪量を有している、請求項13に記載の積層体。
- 前記第2のフィルム層は、10gsmから40gsmの間の坪量を有している、請求項13に記載の積層体。
- 吸収性物品のための材料を作るための方法であって、前記方法は、複数の有孔突起をポリマー・ウェブの中へ真空形成し、少なくとも1つの方向に2.54cm(1リニア・インチ)当たり60~120個の孔のパターンを含む成形構造を使用して第1のフィルムを生成させるステップを含み、前記第1のフィルムは、少なくとも8g/10minのメルト・インデックスおよび少なくとも80m3/m2/minの空気孔隙率を有している、方法。
- 前記第1のフィルムに不織布を積層し、フィルム/不織布積層体を形成するステップをさらに含む、請求項16に記載の方法。
- 前記フィルム/不織布積層体を穿孔し、少なくとも1つの方向に2.54cm(1リニア・インチ)当たり3孔から40孔のメッシュ数を有する複数の孔を生成させるステップをさらに含む、請求項17に記載の方法。
- 前記フィルム/不織布積層体をエンボス加工し、前記フィルム/不織布積層体の中にエンボス加工されたパターンを生成させるステップをさらに含む、請求項17に記載の方法。
- 前記エンボス加工されたパターンは、複数の隆起部を含む、請求項19に記載の方法。
- 前記複数の隆起部は、波状の隆起部を含む、請求項20に記載の方法。
- 第2のフィルムを前記第1のフィルムに積層し、フィルム/フィルム積層体を形成するステップをさらに含む、請求項16に記載の方法。
- 前記第2のフィルムは、少なくとも1つの方向に2.54cm(1リニア・インチ)当たり3孔から40孔のパターンで配置されている複数の孔を含む、請求項22に記載の方法。
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US202062976911P | 2020-02-14 | 2020-02-14 | |
US62/976,911 | 2020-02-14 | ||
PCT/US2020/059993 WO2021096942A1 (en) | 2019-11-14 | 2020-11-11 | Films and laminates for absorbent articles |
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JP2005312526A (ja) | 2004-04-27 | 2005-11-10 | Uni Charm Corp | 吸収性物品 |
US20180256414A1 (en) | 2017-03-13 | 2018-09-13 | Tredegar Film Products Corporation | Activated composite web for absorptive devices |
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CA2123904A1 (en) * | 1991-11-19 | 1993-05-27 | Mohammed Iqbal Aziz | Absorbent article having a nonwoven and apertured film coversheet |
JP3058533B2 (ja) * | 1993-04-27 | 2000-07-04 | ユニ・チャーム株式会社 | 体液吸収性物品の表面シート、およびその製造方法 |
US6582798B2 (en) | 2001-06-06 | 2003-06-24 | Tredegar Film Products Corporation | Vacuum formed film topsheets having a silky tactile impression |
CN100381277C (zh) * | 2002-12-20 | 2008-04-16 | 屈德加薄膜产品股份有限公司 | 吸收用品中使用的有孔材料及其制造方法 |
US20050054998A1 (en) * | 2003-09-05 | 2005-03-10 | Poccia John F. | Absorbent article |
US20050133151A1 (en) * | 2003-12-22 | 2005-06-23 | Maldonado Pacheco Jose E. | Extensible and stretch laminates and method of making same |
BRPI1011701A2 (pt) * | 2009-03-24 | 2016-03-22 | James W Cree | mantas texturizadas gofradas e método para fabricação das mesmas |
KR20170071562A (ko) * | 2014-10-20 | 2017-06-23 | 트레데가르 필름 프로덕츠 코포레이션 | 액체 분배를 위한 3차원 필름을 갖는 흡수 용품 |
EP3386700B8 (en) * | 2015-12-11 | 2021-05-05 | Fitesa Film Products LLC | Hydro-formed film with three-dimensional micro-apertures |
US9856589B1 (en) * | 2016-06-10 | 2018-01-02 | Tredegar Film Products Corporation | Hydroformed expanded spun bonded nonwoven web and method for making same |
US10258517B1 (en) * | 2018-05-25 | 2019-04-16 | Tredegar Film Products Corporation | Fluid distribution material for absorbent articles |
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JP2005312526A (ja) | 2004-04-27 | 2005-11-10 | Uni Charm Corp | 吸収性物品 |
US20180256414A1 (en) | 2017-03-13 | 2018-09-13 | Tredegar Film Products Corporation | Activated composite web for absorptive devices |
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CN114828794A (zh) | 2022-07-29 |
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BR112022009369A2 (pt) | 2022-08-09 |
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