CN1273100C - 一次性尿布 - Google Patents

一次性尿布 Download PDF

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CN1273100C
CN1273100C CNB991043839A CN99104383A CN1273100C CN 1273100 C CN1273100 C CN 1273100C CN B991043839 A CNB991043839 A CN B991043839A CN 99104383 A CN99104383 A CN 99104383A CN 1273100 C CN1273100 C CN 1273100C
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CN1230395A (zh
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吉冈稔泰
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Unicharm Corp
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/494Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
    • A61F13/49406Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region
    • A61F13/49413Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region the edge leakage prevention means being an upstanding barrier
    • A61F13/4942Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region the edge leakage prevention means being an upstanding barrier the barrier not being integral with the top- or back-sheet
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15203Properties of the article, e.g. stiffness or absorbency
    • A61F2013/15284Properties of the article, e.g. stiffness or absorbency characterized by quantifiable properties

Abstract

本发明的目的是提高一次性尿布中的防漏罗口与大腿周围的密接性。防漏罗口19在一次性尿布1的内面朝前后方向延伸,该防漏罗口19具有可从尿布内面立起的突出部16和密封面区20,该密封面区20由从突出部16向内方伸出的第1伸出部17和向外方伸出的第2伸出部18构成。位于密封面区内侧缘部的第1伸出部17的第1弹性构件比位于密封面区外侧缘部的第2伸出部18的第2弹性构件具有高的伸长应力。

Description

一次性尿布
技术领域
本发明涉及备有防漏罗口的一次性尿布。
背景技术
日本特公平3-80502号公报揭示的一次性尿布,备有透液性表面层、不透液性里面层、夹在该两层之间的吸液性芯和防漏构件,该防漏构件由利用弹性构件伸缩的可挠性副翼构成。上述副翼由从尿布内面朝上方突出的分岐部和密封面区域构成,该密封面区域具有从该分支部向内方向伸出的第1伸出部及从该分岐部向外方向伸出的第2伸出部,上述弹性构件位于上述密封面区域。通常,该尿布的第1伸出部弹性地与大腿密接,形成朝内方向开口的兜,由该兜接住流动的粪便和尿。第2伸出部与第1伸出部一起弹性地与大腿密接,提高排泄物的防漏效果。
上述公知的尿布中,第1、第2伸出部分别不折叠地向宽度方向扩展,以较大面积与大腿相接。本发明的目的是对公知尿布进行改进,使第1、第2伸出部能常时地如上所述地与使用者大腿相接。
发明内容
为了实现上述目的,本发明的一次性尿布,具有前腰围区、后腰围区、位于前后腰围区之间的裆下区,还备有透液性表面层、不透液性里面层、夹在该两层之间的吸液性芯和可挠性防漏罗口,该防漏罗口以裆下区为中心向前后腰围区方向延伸,利用若干条弹性构件可沿上述方向伸缩。上述罗口具有从里面层向表面层方向突出的突出部,还具有密封面区,该密封面区由从上述突出部朝内方向伸出的第1伸出部和从该突出部朝外方向伸出的第2伸出部构成;其特征在于,在上述密封面区,上述弹性构件平行地朝向前后腰围区周围方向以伸长状态延伸,上述弹性构件中的位于密封面区内侧缘部的弹性构件比其余弹性构件的伸长应力高。
本发明的一次性尿布,它具有前腰围区、后腰围区、位于前后腰围区之间的裆下区,还备有透液性表面层、不透液性里面层、夹在该两层之间的吸液性芯和可挠性防漏罗口;该防漏罗口以裆下区为中心向前后腰围区方向延伸,利用若干条弹性构件可沿上述方向伸缩;上述罗口具有从里面层向表面层方向突出的突出部和由从上述突出部朝内方向伸出的第1伸出部和从上述突出部朝外方向伸出的第2伸出部构成的密封面区,该第1、第2伸出部的各自的前后端缘部与尿布的内面接合;其特征在于,在上述密封面区中,上述弹性构件平行地朝前后腰围区方向以伸长状态延伸,上述弹性构件中的位于密封面区内侧缘部的弹性构件比其余弹性构件的伸长应力高,位于内侧缘部的弹性部件与位于外侧缘部的弹性部件相比,具有高的伸长应力和伸长倍率;安装于位于外侧缘部的弹性部件和该突出部之间的弹性部件的长度,与位于内侧缘部的弹性部件及位于外侧缘部的弹性部件的长度实质上相同或比后者的长度短,安装于位于外侧缘部的弹性部件和突出部之间的弹性部件的伸长应力,与位于外侧缘部的弹性部件的伸长应力相同或比后者的伸长应力低,而伸长倍率则与位于外侧缘部的弹性部件的伸长倍率相同或比后者的伸长倍率高。
在本发明的一实施例中,在上述第1伸出部中,1条弹性构件安装在密封面区的内侧缘部,在上述第2伸出部中,若干条上述弹性构件安装在密封面区外侧缘部以及该外侧缘部与上述突出部之间,位于上述外侧缘部与突出部之间的弹性构件的伸长应力比上述外侧缘部的弹性构件的伸长应力低或与外侧部的弹性构件的伸长应力相同。
附图说明
图1是伸展状态的一次性尿布的平面图。
图2是稍稍弯曲状态的一次性尿布的局部剖切立体图。
图3是图2中III-III线断面图。
具体实施方式
下面,参照附图详细说明本发明的一次性尿布。
图1、图2是一次性尿布1的局部剖切平面图和尿布1的局部剖切立体图。图2表示尿布1借助后述各弹性构件的收缩而弯曲的状态。
尿布1具有透液性表面层2、不透液性里面层3和夹在该两层2、3之间的吸液性芯4,其前后长度方向由前腰围区6、后腰围区7和裆下区8构成。表面层2和里面层3从芯4周缘向外方伸出,该伸出部分相互接合形成一对侧翼11和前后端翼12、13。在各侧翼11的上面上,具有朝上方突出的突出部16和密封面区20的防漏罗口19以裆下区8为中心朝前后腰围区6、7方向延伸。上述密封面区20由从突出部16向尿布内方伸出的第1伸出部17和从突出部16向尿布外方伸出的第2伸出部18构成。第1、第2伸出部17、18的前后端缘部与尿布1的内面接合。在裆下区8中,在侧翼11的前后方向上延伸着若干条腿部弹性构件21。这些弹性构件21位于表里面层2、3之间,或者位于里面层3和形成罗口19的层10之间,以伸长状态与这些层的内面接合着。在前后端翼12、13的腰围方向,延伸着发泡聚氨酯制弹性片22、23。这些弹性片22、23位于表里层2、3之间,以朝腰围方向伸长的状态间断地与两层2、3的内面接合着。在密封面区20中,以伸长状态安装着朝前后腰围区6、7方向延伸的若干条弹性构件24。
图3是表示图2中III-III线断面的尿布1的局部图。密封面区20的弹性构件24由1条第1弹性构件24A、第2弹性构件24B和第3弹性构件24C构成。第1弹性构件24A在第1伸出部17内沿着内侧缘部26朝前后方向延伸。第2弹性构件24B在第2伸出部18内沿外侧缘部27朝前后方向延伸。第3弹性构件24C在外侧缘部27与突出部16之间朝前后方向延伸。第1伸出部17的第1弹性构件24A也可以是若干条,但是如图所示的1条时,第1弹性构件24A应位于突出部16上端附近,最好在距上端0~3mm的范围内,更好在0.5~2mm的范围内。如图1所示,将尿布1朝前后方向伸展开时,第1、第2弹性构件24A、24B在第1、第2伸出部17、18的前后端缘间延伸,具有相同的长度。第1弹性构件24A的伸长应力高于第2弹性构件24B,最好具有高的伸长应力和伸长倍率。第3弹性构件24C与第1、第2弹性构件24A、24B同长或稍短。第3弹性构件24C的伸长应力与第2弹性构件24B相同或稍低,伸长倍率最好与第2弹性构件相同或稍高。
表里层2、3在芯4的侧缘外方通过热熔粘接剂30以水密状态粘接着。里面层3从表面层2的侧缘进一步向外方延伸,在其延伸部分通过粘接剂30以水密状态与形成罗口19的层10粘接。层10朝尿布1的内方延伸,自上叠合在表面层2上,通过粘接剂30以水密状态与表面层2粘接。大腿周围弹性构件21位于里面层3与层10之间。
该构造的防漏罗口19,当尿布1为朝前后方向伸展的状态时,它借助第1~第3弹性构件24A~24C的伸长而叠合在尿布内面上(见图1)。当尿布1使表面层2作为内侧地向前后方向弯曲时,第1、第2弹性构件24A、24B与其高伸长应力和伸长倍率相对应地收缩(见图2),这样,防漏罗口19的突出部16从侧缘部侧翼11立起,密封面区20将第1伸出部17作为下方地进行倾斜(见图3)。第3弹性构件24C使密封面20在第1、第2弹性构件24A、24B之间不松弛。第1伸出部17和突出部16形成朝尿布1内方朝下开口的兜31。
使用尿布1时,立起的防漏罗口19的密封面区20的外侧缘部27,与点划线所示使用者的大腿周围32相接。外侧缘部27与大腿周围强力相接时,密封面区20以伸长应力最高的第1弹性构件24A为轴朝箭头X方向回旋,如点划线所示,大面积地与使用者的大腿周围32′相接,同时兜31的开口变大。
该尿布1中,朝宽度方向流出的体液被突出部16挡住,可防止从横方向漏出。沿着突出部16流到其上端部的体液被阻挡在第1伸出部17的下面,不会浸入大腿周围32、32′与密封面区20的间隙内。另外,即使体液流入该间隙,由于防漏罗口19在面积大的密封面区20中紧贴大腿周围,所以,该体液不容易流到尿布外。在尿布1中,由于防漏罗口19的作用可减少体液的泄漏。
在第1伸出部17上,除了图示外,也可以配置相互平行的若干条弹性构件24A。这些弹性构件24A的长度和伸长比例相同,其伸长应力相同或者是越靠近内侧缘26者越高。不介意密封面区20在内外侧缘部26、27间松弛时,也可以省掉第3弹性构件24C。
防漏罗口的突出部16和密封面区20可使用无纺布或塑料布,以不透液性无纺布或塑料布为宜,最好使用透气、不透液性的无纺布或塑料布。表面层2可使用透液性的无纺布或开孔塑料布。里面层3可使用不透液性塑料布。芯4可使用粉碎纸浆或粉碎纸浆与高吸水性聚合物粒子的混合物。尿布1的各弹性构件可用热融性粘接剂与各层接合。各层之间的接合除了用粘接剂外,也可用溶敷技术。
本发明的一次性尿布中,防漏罗口由从副翼可立起的突出部和位于突出部上端的密封面区构成,密封面区的若干条弹性构件之中,位于内侧缘部者其伸长应力最高,位于外侧缘部者其伸长应力低,所以,密封面区以内侧缘部的弹性构件为支点朝外方回旋,以大面积与大腿周围相接,可切实防止体液泄漏。

Claims (1)

1.一次性尿布,它具有前腰围区、后腰围区、位于前后腰围区之间的裆下区,还备有透液性表面层、不透液性里面层、夹在该两层之间的吸液性芯和可挠性防漏罗口;该防漏罗口以裆下区为中心向前后腰围区方向延伸,利用若干条弹性构件可沿上述方向伸缩;上述罗口具有从里面层向表面层方向突出的突出部和由从上述突出部朝内方向伸出的第1伸出部和从上述突出部朝外方向伸出的第2伸出部构成的密封面区,该第1、第2伸出部的各自的前后端缘部与尿布的内面接合;其特征在于,在上述密封面区中,上述弹性构件平行地朝前后腰围区方向以伸长状态延伸,上述弹性构件中的位于密封面区内侧缘部的弹性构件比其余弹性构件的伸长应力高,
位于内侧缘部的弹性部件与位于外侧缘部的弹性部件相比,具有高的伸长应力和伸长倍率;安装于位于外侧缘部的弹性部件和该突出部之间的弹性部件的长度,与位于内侧缘部的弹性部件及位于外侧缘部的弹性部件的长度实质上相同或比后者的长度短,安装于位于外侧缘部的弹性部件和突出部之间的弹性部件的伸长应力,与位于外侧缘部的弹性部件的伸长应力相同或比后者的伸长应力低,而伸长倍率则与位于外侧缘部的弹性部件的伸长倍率相同或比后者的伸长倍率高。
CNB991043839A 1998-03-27 1999-03-26 一次性尿布 Expired - Fee Related CN1273100C (zh)

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TW399451U (en) 2000-07-21
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DE69919253T2 (de) 2004-12-30
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CN1230395A (zh) 1999-10-06
EP0945111B1 (en) 2004-08-11
EP0945111A3 (en) 2000-02-23
CA2266287C (en) 2003-06-10
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BR9901713A (pt) 1999-12-28
AU2135899A (en) 1999-10-07
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ID22305A (id) 1999-09-30
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