JP6186459B2 - 使い捨ておむつ - Google Patents
使い捨ておむつ Download PDFInfo
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- JP6186459B2 JP6186459B2 JP2016017174A JP2016017174A JP6186459B2 JP 6186459 B2 JP6186459 B2 JP 6186459B2 JP 2016017174 A JP2016017174 A JP 2016017174A JP 2016017174 A JP2016017174 A JP 2016017174A JP 6186459 B2 JP6186459 B2 JP 6186459B2
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Description
前記前胴回り域から前記後胴回り域に向かう長手方向、及び前記長手方向と直交する幅方向と、
前記後胴回り域において前記幅方向に延び、前記前胴回り域に止着される一対のファスニングテープと、を有する使い捨ておむつであって、
前記使い捨ておむつの前端縁は、前記使い捨ておむつの幅方向の中心を含む領域において後方に向かって凹む曲線状の凹部と、前記凹部の外側縁から幅方向に対して平行に延びる前直線部と、を有し、
前記使い捨ておむつの後端縁は、前記使い捨ておむつの幅方向の中心を含む領域において後方に向かって突出する曲線状の凸部と、前記凸部の外側縁から幅方向と対して平行に延びる後直線部と、を有し、
前記前直線部における外側縁から後方に向かって曲線状に凹み、かつ前記使い捨ておむつの外側縁における前端縁から幅方向内側に向かって曲線状に凹む一対の第1切欠き部と、
前記後直線部における外側縁から前方に向かって曲線状に凹み、かつ前記使い捨ておむつの外側縁における後端縁から幅方向内側に向かって曲線状に凹む一対の第2切欠き部と、を有する、使い捨ておむつ。
前記凹部と前記前直線部とが交差する第1交差部と、前記凸部と前記後直線部とが交差する第2交差部と、を有し、
前記第1交差部及び前記第2交差部は、曲線形状であることが望ましい。
前記使い捨ておむつの外側縁は、着用者の脚回りに配置される脚回り開口部と、前記脚回り開口部の前方に配置される前フラップ部と、前記脚回り開口部の後方に配置される後フラップ部と、を有し、
前記脚回り開口部と前記前フラップ部とが交差する第3交差部、及び前記脚回り開口部と前記後フラップ部とが交差する第4交差部は、曲線形状であることが望ましい。
前記第4交差部は、前記第3交差部よりも幅方向の外側に位置することが望ましい。
前記第1切欠き部は、前記前直線部から後方に向かって延びる第1延出部を有し、
前記第2切欠き部は、前記後直線部から前方に向かって延びる第2延出部を有し、
前記前直線部と前記第1延出部とがなす角度は、鈍角であり、
前記後直線部と前記第2延出部とがなす角度は、鋭角であり、
前記後直線部と前記第2延出部とが交差する第5交差部は、前記幅方向の外側に向かって尖った形状であってよい。
前記第1切欠き部は、前記前直線部から後方に向かって延びる第1延出部を有し、
前記第2切欠き部は、前記後直線部から前方に向かって延びる第2延出部を有し、
前記第1延出部及び前記第2延出部は、前記長手方向に対して平行に延びてよい。
前記使い捨ておむつの後胴回り域に配置され、前記幅方向に伸縮する腰回り伸縮部を有することが望ましい。
前記股下域には、前記幅方向に延びる折り目が設けられており、
前記折り目と前記凸部の幅方向中心との長手方向の距離は、前記折り目と前記凹部の幅方向中心との長手方向の距離よりも長いことが望ましい。
吸収体の非肌面側に配置されるバックフィルムと、
前記バックフィルムの非肌面側に位置する不織布からなる外装シートと、を有し、
前記バックフィルムの前端縁は、前記使い捨ておむつの前端縁よりも後方に位置し、
前記バックフィルムの後端縁は、前記使い捨ておむつの後端縁よりも前方に位置することが望ましい。
次に、本発明に係る使い捨ておむつ10の実施形態について、図面を参照しながら説明する。なお、以下の図面の記載において、同一または類似の部分には、同一または類似の符号を付している。ただし、図面は模式的なものであり、各寸法の比率などは現実のものとは異なることに留意すべきである。したがって、具体的な寸法などは以下の説明を参酌して判断すべきである。また、図面相互間においても互いの寸法の関係や比率が異なる部分が含まれ得る。
図1は、本実施形態に係る使い捨ておむつ10の展開平面図である。図1に示す展開図は、使い捨ておむつを構成するトップシート50、サイドフラップ70等の皺が形成されない状態まで、レッグ伸縮部75を伸長させた状態の図である。
次いで、使い捨ておむつの外縁の形状について詳細に説明する。以下の説明における外縁形状は、使い捨ておむつの伸長状態(図1に示す状態)における形状である。使い捨ておむつの外縁とは、図1に示す平面状態における使い捨ておむつの輪郭である。使い捨ておむつの外縁は、ファスニングテープを除いたシートの外縁であり、前端縁11と、後端縁12と、一対の外側縁13と、を有する。図2は、使い捨ておむつの前端縁11を拡大した平面図である。図3は、使い捨ておむつの後端縁12を拡大した平面図である。図4は、使い捨ておむつの外側縁13を拡大した平面図である。
次いで、図5に基づいて変形例に係る使い捨ておむつについて説明する。なお、変形例の説明において、上述の実施形態と同様の構成については同符号を用いて説明を省略する。変形例に係る使い捨ておむつの前端縁11における前直線部112と第1延出部151とがなす角度θ1は、鈍角である。第1延出部151は、前直線部112から後方に向かうにつれて幅方向外側に延びる。また、使い捨ておむつの後端縁12における後直線部122と第2延出部161とがなす角度θ2は、鋭角である。第2延出部152は、後直線部122から前方に向かうにつれて幅方向外側に延びる。後直線部122と第2延出部161とが交差する第5交差部153は、幅方向の外側に向かって尖った形状であってよい。第5交差部153は、長手方向外側に向かって尖っていない。第1切欠き部が鈍角であるため、肌に対する刺激を抑制できる。また、着用者のお腹に対して優しくあたる印象となり、母親の肌への刺激に対するストレスを少なくできる。また、第2切欠き部は、ファスニングテープを止着した際に前胴回り域に重なって配置され、着用者の肌に直接触れない。よって、使い捨ておむつの後端縁と第2切欠き部が交差する第5交差部が鋭角であっても、着用者の肌への刺激を防止できる。
20 :前胴回り域
25 :股下域
30 :後胴回り域
40 :吸収体
11 :前端縁、11E :外側縁
111 :凹部、111E :外側縁
112 :前直線部、112E :外側縁
12 :後端縁、12E :外側縁
121 :凸部、121E :外側縁
122 :後直線部、122E :外側縁
13 :外側縁
131 :脚回り開口部
132 :前フラップ部、132a :第1前フラップ部、132b :第2前フラップ部
133 :後フラップ部、133a :第1後フラップ部、133b :第2後フラップ部
15 :第1切欠き部
151 :第1延出部
152 :第1幅延出部
16 :第2切欠き部
161 :第2延出部
162 :第2幅延出部
113 :第1交差部
123 :第2交差部
134 :第3交差部
135 :第4交差部
L :長手方向
W :幅方向
Claims (9)
- 前胴回り域、後胴回り域、及び前記前胴回り域と前記後胴回り域との間に位置する股下域と、
前記前胴回り域から前記後胴回り域に向かう長手方向、及び前記長手方向と直交する幅方向と、
前記後胴回り域において前記幅方向に延び、前記前胴回り域に止着される一対のファスニングテープと、を有する使い捨ておむつであって、
前記使い捨ておむつの前端縁は、前記使い捨ておむつの幅方向の中心を含む領域において後方に向かって凹む曲線状の凹部と、前記凹部の外側縁から幅方向に対して平行に延びる前直線部と、を有し、
前記使い捨ておむつの後端縁は、前記使い捨ておむつの幅方向の中心を含む領域において後方に向かって突出する曲線状の凸部と、前記凸部の外側縁から幅方向に対して平行に延びる後直線部と、を有し、
前記前直線部における外側縁から後方に向かって曲線状に凹み、かつ前記使い捨ておむつの外側縁における前端縁から幅方向内側に向かって曲線状に凹む一対の第1切欠き部と、
前記後直線部における外側縁から前方に向かって曲線状に凹み、かつ前記使い捨ておむつの外側縁における後端縁から幅方向内側に向かって曲線状に凹む一対の第2切欠き部と、を有する、使い捨ておむつ。 - 前記凹部と前記前直線部とが交差する第1交差部と、前記凸部と前記後直線部とが交差する第2交差部と、を有し、
前記第1交差部及び前記第2交差部は、曲線形状である、請求項1に記載の使い捨ておむつ。 - 前記使い捨ておむつの外側縁は、着用者の脚回りに配置される脚回り開口部と、前記脚回り開口部の前方に配置される前フラップ部と、前記脚回り開口部の後方に配置される後フラップ部と、を有し、
前記脚回り開口部と前記前フラップ部とが交差する第3交差部、及び前記脚回り開口部と前記後フラップ部とが交差する第4交差部は、曲線形状である、請求項1又は請求項2に記載の使い捨ておむつ。 - 前記第4交差部は、前記第3交差部よりも幅方向の外側に位置する、請求項3に記載の使い捨ておむつ。
- 前記第1切欠き部は、前記前直線部から後方に向かって延びる第1延出部を有し、
前記第2切欠き部は、前記後直線部から前方に向かって延びる第2延出部を有し、
前記前直線部と前記第1延出部とがなす角度は、鈍角であり、
前記後直線部と前記第2延出部とがなす角度は、鋭角であり、
前記後直線部と前記第2延出部とが交差する第5交差部は、前記幅方向の外側に向かって尖った形状である、請求項1から請求項4のいずれかに記載の使い捨ておむつ。 - 前記第1切欠き部は、前記前直線部から後方に向かって延びる第1延出部を有し、
前記第2切欠き部は、前記後直線部から前方に向かって延びる第2延出部を有し、
前記第1延出部及び前記第2延出部は、前記長手方向に対して平行に延びる、請求項1から請求項4のいずれかに記載の使い捨ておむつ。 - 前記使い捨ておむつの後胴回り域に配置され、前記幅方向に伸縮する腰回り伸縮部を有する、請求項1から請求項6のいずれかに記載の使い捨ておむつ。
- 前記股下域には、前記幅方向に延びる折り目が設けられており、
前記折り目と前記凸部の幅方向中心との長手方向の距離は、前記折り目と前記凹部の幅方向中心との長手方向の距離よりも長い、請求項1から請求項7のいずれかに記載の使い捨ておむつ。 - 吸収体の非肌面側に配置されるバックフィルムと、
前記バックフィルムの非肌面側に位置する不織布からなる外装シートと、を有し、
前記バックフィルムの前端縁は、前記使い捨ておむつの前端縁よりも後方に位置し、
前記バックフィルムの後端縁は、前記使い捨ておむつの後端縁よりも前方に位置する、請求項1から請求項8のいずれかに記載の使い捨ておむつ。
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