JP2014515984A - 使い捨て吸収性物品用の吸収性コア - Google Patents
使い捨て吸収性物品用の吸収性コア Download PDFInfo
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- JP2014515984A JP2014515984A JP2014514874A JP2014514874A JP2014515984A JP 2014515984 A JP2014515984 A JP 2014515984A JP 2014514874 A JP2014514874 A JP 2014514874A JP 2014514874 A JP2014514874 A JP 2014514874A JP 2014515984 A JP2014515984 A JP 2014515984A
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- absorbent
- apm
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- layer
- transverse
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Images
Classifications
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Landscapes
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Abstract
Description
「吸収性物品」とは、身体の排出物を吸収及び保持する装置のことを指し、より具体的には、着用者の身体に接して、又は近接して配置されることにより、身体から排出される様々な排出物を吸収及び保持する装置のことを指す。吸収性物品としては、おむつ、トレーニングパンツ、成人用失禁下着、女性用衛生用品を挙げることができる。
使い捨て吸収性物品は、身体排出物を吸収及び収容するデバイスである。これには、おむつ、トレーニングパンツ、成人用失禁下着、女性用衛生用品が挙げられる。一般的に、使い捨て物品は、トップシート、バックシート、及びその間に吸収性コアを含む。
吸収性コアはトップシートとバックシートとの間に配置される。これは少なくとも1つの吸収性構造を含む3次元構造である。
吸収性コアは、異なる吸収力の領域が提供される、すなわち吸収性コアの特定の領域は他の領域より多く吸収性材料を含む。幾つかの実施形態では、吸収性コアはその長手方向寸法において浮き上がってもよい、すなわち、吸収性材料の量、例えば吸収性層若しくは吸収性層の少なくとも1つ又は全吸収性層における吸収性ポリマー材料の量が、吸収性コアの長手方向寸法において変動してよい。幾つかの他の実施形態では、吸収性コアはその横断寸法において浮き上がってもよい、すなわち、吸収性材料の量、例えば吸収性層若しくは吸収性層の少なくとも1つ又は全吸収性層における吸収性ポリマー材料の量が吸収性コアの横断寸法において変動してよい。吸収性ポリマー材料の量等の吸収性材料の量は、1つの領域から別の領域まで徐々に遷移してよい。吸収性材料の量のこの漸進的な遷移により、吸収性コアにおける亀裂形成の可能性が低減され得る。
幾つかの実施形態では、吸収性材料の量、一般的に吸収性層若しくは吸収性層の少なくとも1つ又は全吸収性層における吸収性ポリマー材料の量は吸収性層の横断寸法に沿って変動してよい。幾つかの実施形態では、図5に示されるように、吸収性層25若しくは吸収性層の少なくとも1つ又は全吸収性層は、吸収性層の単位面積当りの吸収性材料の量、一般的に吸収性ポリマー材料の量が区域間で変動する3つの吸収性区域に分けることができる。3つの区域に分けられるとき、吸収性層は、互いに離れ、吸収性層の長手方向軸線に実質的に平行に延在する第1及び第2の吸収性区域30及び31と、長手方向軸線(前記軸線を含む)に沿って実質的に延在する、第1と第2の吸収性区域との間の中央吸収性区域32とを有する。幾つかの実施形態では、吸収性層の第1及び第2の吸収性区域に存在する吸収性材料、一般的に吸収性ポリマー材料は、吸収性層の中央吸収性区域に存在する吸収性材料の坪量より高い坪量を有してよい。これらの実施形態による吸収性コアに中央吸収性区域に向けられた液体を流すと、中央吸収性区域を超えて流れる液体は、側部吸収性区域と接触する。第1及び第2の吸収性区域は、高吸収性ポリマー材料を有し、そのような液体を吸収する大きな容量を有し、側部吸収性区域を超える液体の流れを妨げて、漏洩を防止する。幾つかの実施形態では、吸収性層の第1及び第2の吸収性区域30及び31に存在する吸収性材料の坪量は、吸収性層の中央吸収性区域32に存在する吸収性材料の坪量より低くてもよい。吸収性層は、様々な坪量の吸収性粒子状ポリマーを有する任意の数の吸収性区域を含んでよい。更に、他の実施形態では、吸収性材料は、吸収性層の単位面積当りの吸収性材料の量の多い領域と少ない領域とを交互にする等により異なるパターンで変動してもよい。
幾つかの実施形態では、吸収性層若しくは吸収性層の少なくとも1つ又は全吸収性層における吸収性材料の量は、吸収性層の長手方向寸法に沿って変動してよい。幾つかの実施形態では、図7に示されるように、吸収性層又は吸収性層の少なくとも1つは、吸収性層の単位面積当りの吸収性材料の量が区域間で変動する3つの吸収性区域に分けることができる。3つの区域に分けられるとき、吸収性層25は、互いに離れ、吸収性層の長手方向軸線に実質的に垂直に延在する第1及び第2の吸収性区域40及び41と、横断軸線(前記軸線を含む)に沿って実質的に延在する第1及び第2の端部吸収性区域40及び41との間の中央吸収性区域42とを有する。幾つかの実施形態では、吸収性層の第1及び第2の吸収性区域の吸収性材料の坪量は、吸収性層の中央吸収性領域より高くてよい。これらの種類の実施形態は、股領域における吸収性物品のかさを減少させ、よって物品のフィット性、よって着用者の快適性を向上させるために提供される。吸収性コアが、中央吸収性区域に向けられた液体の流れにさらされると、中央吸収性区域を通過して流れる液体は、そのような液体を吸収しかつ保持する能力が高い第1及び第2の吸収性区域に接触する。幾つかの実施形態では、吸収性層の第1及び第2の吸収性区域の吸収性材料の坪量は、吸収性層の中央吸収性区域より低くてよい。
吸収性材料を含む吸収性層は、基材層によって支持され、乾燥及び湿潤状態での固定を提供する熱可塑性接着剤材料により前記基材層上に固定される。
輪郭付けられた吸収性コアは、欧州特許第2328532A2号及び欧州特許第2328532A2号等に開示される、当該技術分野において利用可能な任意の好適な方法によって作製され得る。
(a)吸収性構造を形成する工程であって、
(a)基材層を提供する工程と、
(b)前記基材層上に吸収性ポリマー材料を含む吸収性材料を堆積させて、異なる吸収性材料の坪量の区域を作り出すことにより、輪郭付けられた吸収性層を形成する工程と、
(c)第1の坪量をもつ吸収性層の1つ以上の第1の区域上に熱可塑性接着剤材料を塗布する工程と、
(d)第2の坪量をもつ吸収性層の1つ以上の第2の区域上に熱可塑性接着剤材料を塗布する工程であって、前記第2の区域が前記第1の区域と異なる、工程と、
(e)任意に、第3の坪量をもつ吸収性層の1つ以上の第3の区域上に熱可塑性接着剤材料を塗布する工程であって、前記第3の区域が前記第1及び第2の区域と異なる、工程とにより吸収性構造を形成する工程と、
(b)任意に工程(a)〜(e)を繰り返し、第1の吸収性構造の熱可塑性接着剤材料が第2の吸収性構造の熱可塑性接着剤材料に接触するように2つの吸収性構造を組み合わせる工程と、を含む。
Claims (15)
- 1つ以上の吸収性構造を備える使い捨て吸収性物品用の吸収性コアであって、前記吸収性構造が基材層及び吸収性層を含み、前記吸収性層が吸収性材料を含み、前記吸収性材料は、熱可塑性接着剤材料によって支持されるとともに、前記基材層上に固定され、
前記吸収性コアは、長手方向寸法及び横断寸法を有し、その長手方向寸法の9つの横断セグメントと、その横断寸法の6つの長手方向セグメントと、からなり、
前記横断セグメントのそれぞれにおいて、前記吸収性層が、平均坪量の吸収性材料(APMt BWav)と、前記吸収性材料を固定する平均坪量の熱可塑性接着剤材料(TAMt BWav)とを有し、
前記長手方向セグメントのそれぞれにおいて、前記吸収性層が、平均坪量の吸収性材料(APMl BWav)と、前記吸収性材料を固定する平均坪量の熱可塑性接着剤材料(TAMl BWav)とを有し、
前記横断セグメントの少なくとも1つにおける前記吸収性層の前記APMt BWav及びTAMt BWavが、前記横断セグメントの少なくとも他の1つにおける前記吸収性層の前記APMt BWav及びTAMt BWavに対して低いか、又は
前記長手方向セグメントの少なくとも1つにおける前記吸収性層の前記APMl BWav及びTAMl BWavが、前記長手方向セグメントの少なくとも他の1つにおける前記吸収性層の前記APMl BWav及びTAMl BWavに対して低い、
吸収性コア。 - 前記吸収性材料が、少なくとも95重量%の吸収性ポリマー材料を含む、請求項1に記載の吸収性コア。
- 前記吸収性コアが、前記吸収性層の前記APMt BWav及びTAMt BWavが前記横断セグメントの少なくとも他の1つにおける前記吸収性層の前記APMt BWav及びTAMt BWavに対して低い6つの横断セグメントを含む、請求項1又は2のいずれかに記載の吸収性コア。
- 前記吸収性コアが、一対の対向する横断端部及び一対の対向する長手方向端部を有し、前記吸収性層の前記APMt BWav及びTAMt BWavが前記横断セグメントの少なくとも他の1つにおける前記吸収性層の前記APMt BWav及びTAMt BWavに対して低い前記6つの横断セグメントのうち3つが、互いに隣接するとともに前記吸収性コアの反対側の横断端部に隣接し、前記吸収性層の前記APMt BWav及びTAMt BWavが前記横断セグメントの少なくとも他の1つにおける吸収性層のAPMt BWav及びTAMt BWavに対して低い、前記6つの横断セグメントのうち3つが、互いに隣接するとともに前記吸収性コアの前記反対側の横断端部に隣接する、請求項3に記載の吸収性コア。
- 前記吸収性コアが、前記吸収性層の前記APMl BWav及びTAMl BWavが前記長手方向セグメントの少なくとも他の1つにおける前記吸収性層の前記APMl BWav及びTAMl BWavに対して低い、2つの長手方向セグメントを含む、請求項1又は2に記載の吸収性コア。
- 前記吸収性コアが、前記長手方向寸法において順次配置される前部領域、股領域、及び後部領域を含み、前記吸収性コアが、前記吸収性層の前記APMt BWav及びTAMt BWavが前記横断セグメントの少なくとも他の1つにおける前記吸収性層の前記APMt BWav及びTAMt BWavより低い3つの横断セグメントを前記股領域に含む、請求項1又は2に記載の吸収性コア。
- 前記吸収性コアが、前記吸収性層の前記APMl BWav及びTAMl BWavが前記長手方向セグメントの少なくとも他の1つにおける前記吸収性層の前記APMl BWav及びTAMl BWavより低い6つの長手方向セグメントを含み、前記6つの長手方向セグメントのうち3つは、連続するとともに前記吸収性コアの長手方向端部の1つに隣接し、前記6つの長手方向セグメントのうち3つは、連続するとともに前記吸収性コアの他の長手方向端部に隣接する、請求項1又は2に記載の吸収性コア。
- TAMt BWav又はTAMl BWavが、少なくとも20%低い、請求項1〜7のいずれか一項に記載の吸収性コア。
- TAMt BWav又はTAMl BWavが、少なくとも40%低い、請求項1〜8のいずれか一項に記載の吸収性コア。
- APMt BWav又はAPMl BWavが、少なくとも20%低い、請求項1〜9のいずれか一項に記載の吸収性コア。
- 前記横断セグメントの少なくとも1つにおける前記吸収性層の前記APMt BWav及びTAMt BWavが、前記横断セグメントの少なくとも他の1つにおける前記吸収性層の前記APMt BWav及びTAMt BWavに対してより低い、2つの吸収性層を有する吸収性構造の積層体を形成する、2つの吸収性構造を含む、請求項1〜10のいずれか一項に記載の吸収性コア。
- 前記TAMt BWav又はTAMl BWavが25%〜45%低いとき、前記APMt BWav又はAPMl BWavが少なくとも50%〜65%低い、請求項1〜7又は11のいずれか一項に記載の吸収性コア。
- 第1の端部から第2の端部に延在する長手方向軸線を有し、トップシート、及びバックシート、並びにトップシートとバックシートとの間に請求項1〜12のいずれか一項による吸収性コアを含む、使い捨て吸収性物品。
- 前記物品がおむつである、請求項13に記載の使い捨て吸収性物品。
- 請求項1〜12のいずれか一項による吸収性コアを作製するための方法であって、
(a)基材層を提供する工程と、
(b)前記基材層上に吸収性ポリマー材料を含む吸収性材料を堆積させて、異なる吸収性材料坪量の区域を作り出すことにより、輪郭付けられた吸収性層を形成する工程と、
(c)第1の坪量をもつ前記吸収性層の1つ以上の第1の区域上に熱可塑性接着剤材料を塗布する工程と、
(d)第2の坪量をもつ前記吸収性層の1つ以上の第2の区域上に熱可塑性接着剤材料を塗布する工程であって、前記第2の区域が前記第1の区域と異なる、工程と、
(e)任意に、第3の坪量をもつ前記吸収性層の1つ以上の第3の区域上に熱可塑性接着剤材料を塗布する工程であって、前記第3の区域が前記第1及び第2の区域と異なる、工程とにより吸収性構造を形成する工程と、
を含む、方法。
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JP2019042398A (ja) * | 2017-09-06 | 2019-03-22 | 花王株式会社 | 吸収性物品 |
Also Published As
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RU2013156995A (ru) | 2015-07-20 |
JP2016005654A (ja) | 2016-01-14 |
ZA201309513B (en) | 2015-10-28 |
US20120316530A1 (en) | 2012-12-13 |
US9168186B2 (en) | 2015-10-27 |
CA2838969A1 (en) | 2012-12-13 |
US10517776B2 (en) | 2019-12-31 |
WO2012170783A1 (en) | 2012-12-13 |
CN105796250B (zh) | 2019-05-10 |
EP2532334B1 (en) | 2016-10-12 |
US20160008187A1 (en) | 2016-01-14 |
CN103648462A (zh) | 2014-03-19 |
JP6096256B2 (ja) | 2017-03-15 |
MX337665B (es) | 2016-03-14 |
MX2013014589A (es) | 2014-06-23 |
BR112013031713A2 (pt) | 2016-12-06 |
EP2532334A1 (en) | 2012-12-12 |
SG194986A1 (en) | 2013-12-30 |
JP5808856B2 (ja) | 2015-11-10 |
PH12013502573A1 (en) | 2014-02-10 |
RU2582011C2 (ru) | 2016-04-20 |
CN103648462B (zh) | 2016-06-15 |
CL2013003524A1 (es) | 2014-08-01 |
CN105796250A (zh) | 2016-07-27 |
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