JP7290579B2 - 伸縮複合シートの製造方法、伸縮複合シート及び該伸縮複合シートを用いた使い捨て着用物品 - Google Patents
伸縮複合シートの製造方法、伸縮複合シート及び該伸縮複合シートを用いた使い捨て着用物品 Download PDFInfo
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- JP7290579B2 JP7290579B2 JP2019568928A JP2019568928A JP7290579B2 JP 7290579 B2 JP7290579 B2 JP 7290579B2 JP 2019568928 A JP2019568928 A JP 2019568928A JP 2019568928 A JP2019568928 A JP 2019568928A JP 7290579 B2 JP7290579 B2 JP 7290579B2
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- elastic member
- base sheet
- stretchable composite
- composite sheet
- sheet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
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- B32B37/0076—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised in that the layers are not bonded on the totality of their surfaces
- B32B37/0084—Point bonding
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- A61F13/00—Bandages or dressings; Absorbent pads
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- A61F13/15585—Apparatus or processes for manufacturing of babies' napkins, e.g. diapers
- A61F13/15593—Apparatus or processes for manufacturing of babies' napkins, e.g. diapers having elastic ribbons fixed thereto; Devices for applying the ribbons
- A61F13/15601—Apparatus or processes for manufacturing of babies' napkins, e.g. diapers having elastic ribbons fixed thereto; Devices for applying the ribbons the ribbons being applied transversely to the direction of the movement of the webs the diapers are being made of
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- 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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- Absorbent Articles And Supports Therefor (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
3a,3b 主面
3p,3q 辺縁
3s,3t 側面
4 第1の不織布(第1の基材シート)
6 第2の不織布(第2の基材シート)
60 第1の箇所
62 第2の箇所
64a,64b 第3の箇所
70,70a 使い捨て着用物品
72,72a 前胴部
74,74a 後胴部
76,76a 股間部
79 胴回り方向
Claims (11)
- 熱可塑性弾性樹脂を主成分として組成された帯状又は線状の複数本の弾性部材を、前記弾性部材の長手方向に伸張する第1の工程と、
第1の基材シートの主面が前記弾性部材と接するように、伸張されている前記弾性部材を前記第1の基材シートと積層する第2の工程と、
伸張されている前記弾性部材と前記第1の基材シートとが積層されている状態で、前記第1の基材シートの前記主面に垂直な方向から見たとき前記弾性部材と重なる領域において、前記弾性部材の互いに対向する辺縁と重ならない第1の箇所のみで、前記弾性部材と前記第1の基材シートとを接合する第3の工程と、
を備え、
前記第1の工程において、複数本の前記弾性部材を互いに間隔を設けて配置し、それぞれ長手方向に伸張し、
前記第2の工程において、伸張されている前記弾性部材を前記第1の基材シートと積層し、
前記第3の工程において、前記弾性部材と前記第1の基材シートとを、前記弾性部材が伸びる方向に間隔を設けて、かつ、前記弾性部材の前記辺縁が前記第1の基材シートと接合されないように、超音波接合によって接合することを特徴とする、伸縮複合シートの製造方法。 - 前記弾性部材は、前記熱可塑性弾性樹脂を主成分とする弾性樹脂材料が加熱溶融され帯状に押し出し成形されたものであることを特徴とする、請求項1に記載の伸縮複合シートの製造方法。
- 前記第2の工程において、第2の基材シートを、前記第1の基材シートと前記第2の基材シートとの間に前記弾性部材が挟まれるように、前記弾性部材及び前記第1の基材シートに積層し、
前記第3の工程において、前記第2の基材シートを、前記弾性部材と前記第1の基材シートとの少なくとも一方と接合することを特徴とする、請求項1又は2に記載の伸縮複合シートの製造方法。 - 前記第3の工程において、前記第1の基材シートの前記主面に垂直な方向から見たとき前記弾性部材の前記辺縁に隣接する第3の箇所で、前記第1の基材シートと前記第2の基材シートとを接合することを特徴とする、請求項3に記載の伸縮複合シートの製造方法。
- 前記第3の工程において、前記弾性部材と前記第1の基材シートとを、前記弾性部材の伸びている方向に間隔を設けて接合することを特徴とする、請求項1又は2に記載の伸縮複合シートの製造方法。
- 前記第3の工程において、前記第1の基材シートの前記主面に垂直な方向から見たとき前記弾性部材から離れている第2の箇所で、前記第1の基材シートと前記第2の基材シートとを接合することを特徴とする、請求項3に記載の伸縮複合シートの製造方法。
- 前記第3の工程において、前記第1の基材シートの前記主面に垂直な方向から見たとき前記弾性部材の前記辺縁に隣接する第3の箇所で、前記第1の基材シートと前記第2の基材シートとを接合することを特徴とする、請求項6に記載の伸縮複合シートの製造方法。
- 前記第3の工程において、前記第1の基材シートの前記主面に垂直な方向から見たとき前記弾性部材の前記辺縁の両側にそれぞれ隣接し互いに対向する複数対の第3の箇所で、前記第1の基材シートと前記第2の基材シートとを接合することを特徴とする、請求項3又は6に記載の伸縮複合シートの製造方法。
- 前記第3の工程において、超音波接合によって接合することを特徴とする、請求項1乃至8のいずれか一つに記載の伸縮複合シートの製造方法。
- 基材シートと、
熱可塑性弾性樹脂を主成分として組成され、前記基材シートの主面と接するように、互いに間隔を設けて前記基材シートに接合された帯状又は線状の複数本の弾性部材と、
を備えた伸縮複合シートであって、
前記弾性部材と前記基材シートとは、前記弾性部材を前記弾性部材の長手方向に伸張した状態で前記基材シートの前記主面に垂直な方向から見たとき前記弾性部材と重なる領域において、前記弾性部材の互いに対向する辺縁と重ならない複数箇所のみで、前記弾性部材が伸びる方向に間隔を設けて、かつ、前記弾性部材の前記辺縁が前記基材シートと接合されないように、接合されていることを特徴とする、伸縮複合シート。 - 前胴部と、
前記前胴部との間に間隔を設けて対向する後胴部と、
前記前胴部と前記後胴部とに接続された股間部と、
を備えた使い捨て着用物品であって、
前記前胴部と前記後胴部とのうちいずれか一方又は両方が、請求項10に記載の前記伸縮複合シートを含み、
前記伸縮複合シートは、前記弾性部材が前記使い捨て着用物品の胴回り方向に延在するように配置されることを特徴とする使い捨て着用物品。
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US11147718B2 (en) | 2017-09-01 | 2021-10-19 | The Procter & Gamble Company | Beamed elastomeric laminate structure, fit, and texture |
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