CN101031269A - 具有可灵活定位的底座耳部的一次性吸收制品 - Google Patents
具有可灵活定位的底座耳部的一次性吸收制品 Download PDFInfo
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- A61F—FILTERS 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
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- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent 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 absorbing medium
- A61F13/531—Absorbent 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 absorbing medium having a homogeneous composition through the thickness of the pad
- A61F13/532—Absorbent 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 absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent 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
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
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- A—HUMAN NECESSITIES
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- A61F—FILTERS 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
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/56—Supporting or fastening means
- A61F13/5622—Supporting or fastening means specially adapted for diapers or the like
- A61F13/5633—Supporting or fastening means specially adapted for diapers or the like open type diaper
Abstract
一种简易的一次性吸收制品包括底座和吸收组件。所述底座包括由底座的横向向内折叠部分形成的横向相对的侧翼和由底座的其它横向向内折叠部分形成的可灵活定位的底座耳部。每个底座耳部在定位之前一直保持横向向内折叠,方法是将其释放并横向向外展开以致横向向外超出邻近侧翼。扣紧元件可设置在至少两个底座耳部上,所述扣紧元件适于将前腰区扣紧到后腰区上以环绕穿着者的腰部和腿部。底座为可延展的。吸收组件可以十字形图案连接到底座上,以使吸收组件下面和位于十字形连接图案以外的底座部分能够横向伸展。
Description
技术领域
本发明涉及旨在用于失禁者的一次性吸收制品,如一次性尿布和其它制品。
背景技术
一次性吸收制品用来吸收和容纳身体排泄物,以防止污染穿着者的身体、衣物以及被褥或污染与穿着者接触的其它物件。
随着一次性吸收制品的使用日益增多,它们的复杂性也随着加入旨在增强其性能和外观的附加功能而增加。材料成本和生产过程的成本也随着复杂性的增加而一起增加。因此,这些制品的销售价格已经上涨到世界各地的很多潜在购买者负担不起的水平。因此,需要一种简易的一次性吸收制品。
发明内容
本发明提供了一种包括底座和吸收组件的简易一次性吸收制品。底座包括由底座的横向向内折叠部分形成的横向相对的侧翼和由底座的其它横向向内折叠部分形成的可灵活定位的(deployable)底座耳部。每个底座耳部在定位之前一直保持横向向内折叠,方法是将其释放并横向向外展开以致横向向外超出邻近侧翼。扣紧元件可设置在至少两个底座耳部上,所述扣紧元件适于将前腰区扣紧到后腰区上以环绕穿着者的腰部和腿部。吸收组件可以十字形图案连接到底座上以使吸收组件下面且位于十字形连接图案以外的底座部分能够横向伸展。
附图说明
在附图中,同样的附图标记表示结构上对应的元件,其在所描述的几个示例性实施方案中可相同或可不相同。为了更清楚地显示其它元件,某些附图可通过省略选择的元件进行简化。在任何示例性实施方案中,除了在相应的文字说明书明白无误地描述之外,某些附图中元件的此类省略并不一定代表具体元件的存在或不存在。
在附图中和在文字说明书中,附加在附图标记上的小写字母通常表示对称的元件,例如,左右对称元件可分别用附图标记1a和1b来标识。无附加小写字母的附图标记标识具体附图标记所应用的所有元件,例如,作为一类的相同元件可命名为1。
图1是尿布20形式的示例性一次性吸收制品的平面图,其以其平展未收缩状态显示,即没有由弹性构件引起的收缩。在此图中,向内朝向穿着者并接触穿着者的尿布20内部朝向观察者显示。
图2是图1尿布20的平面图,其中朝外远离穿着者的尿布20外部朝向观察者显示。
图3是沿剖面线3-3截取的图1和2尿布20的截面图。
图4是沿剖面线4-4截取的图1和2尿布20的截面图。
图5是具有两个横向伸展的底座耳部的示例性尿布20的平面图。在此图中,尿布20的内部朝向观察者显示。
图6是图5尿布20的平面图,其中尿布20的外部朝向观察者显示。
图7是沿剖面线7-7截取的图5和6尿布20的截面图。
图8是沿剖面线8-8截取的图5和6尿布20的截面图。
图9是沿剖面线9-9截取的图5和6尿布20的截面图。
图10是示例性尿布20的透视图,它以其松驰收缩状态显示,即具有由弹性构件引起的收缩。在此图中,尿布20的内部朝上显示。
图11是另一个示例性尿布20的平面图,显示了一种可供选择的扣件形式。
图12是图11尿布20的平面图,其中尿布20的外部朝向观察者显示。
图13是沿剖面线13-13截取的图11和12尿布20的截面图。
图14是沿剖面线14-14截取的图11和12尿布20的截面图。
图15是沿类似于13-13的剖面线截取的另一个示例性尿布20的截面图,并且显示了一种可供选择的扣件形式。
图16是沿剖面线16-16截取的图11和12尿布20的截面图。
图17是成形纤网材料的示例性片断的平面图。
图18是示例性尿布20的简化平面图,它以其平展未收缩状态显示,即没有由弹性构件引起的收缩,吸收组件以十字形连接图案连接到底座上。在此图中,尿布20的外部朝向观察者显示。
图19是示例性吸收组件200的平面图。在此图中,显示了示例性尿布20中与其所连接的底座100分离的吸收组件200,并且向内朝向穿着者并接触穿着者的吸收组件200内部朝向观察者显示。
图20是沿剖面线20-20截取的图19吸收组件200的截面图。
图21是沿剖面线21-21截取的图19吸收组件200的截面图。
图22是沿类似于20-20的剖面线截取的另一个示例性吸收组件200的截面图。
图23是示例性吸收芯250的截面图。
图24是具有四个横向伸展的底座耳部的另一个示例性尿布20的平面图。在此图中,尿布20的内部朝向观察者显示。
具体实施方式
在本说明书中,以下术语具有以下含义:
“吸收制品”是指吸收和容纳液体的装置,更具体地讲是指与穿着者的身体紧贴或邻近放置、用于吸收和容纳各种由身体排放的渗出物的装置。
术语“尿布”是指通常被婴儿和失禁者围绕下体穿着以便环绕穿着者的腰部和腿部并且具体地讲适于接收和容纳尿液和粪便的一种吸收制品。
术语“一次性的”是指通常不旨在洗涤或换句话讲不再还原或不再用作吸收制品的吸收制品的性质,即预期将它们使用一次后丢弃,优选将其回收利用、堆肥处理或以其它环境相容的方式处理。在此说明书中,一次性尿布被描述成示例性一次性吸收制品的代表。
所有形式的术语“定位(deploy)”是指操纵任何已公开的可灵活定位的(deployable)结构元件从其初始构型至其可用于其可提供的制品中的预期用途的构型。
术语“纵向”是指从制品的一个腰部边缘到相对的腰部边缘延伸的并且通常平行于制品的最大线性尺寸的方向。
术语“横向”是指从制品的一个侧边到相对的侧边延伸的并且通常与纵向成直角的方向。
术语“对角线的”是指相对于纵向和横向倾斜延伸的直线方向,即既不垂直于也不平行于纵向或横向中的任一方向。
术语“设置”是指元件被连接和定位在特定地点或位置并与其它元件形成一体结构。
术语“连接”是指把多个元件用适于将元件以及它们的组分材料连接到一起的任何方法通过扣紧、粘附、粘结等进行连接或结合。许多将元件连接到一起的合适方法已为人们所熟知,所述方法包括粘合剂粘合、压力粘合、热粘合、机械连接等。这些连接方法可用来在特定区域上连续或断续地将元件连接到一起。
术语“内粘性”是指一种材料一旦设定,对其本身具有粘性但对其它材料在很大程度上不具有粘性的性质。
术语“水可渗透的”和“水不可渗透的”是指在一次性吸收制品预期使用的范围内材料的穿透性。具体地讲,术语“水可渗透的”是指具有气孔、开口和/或互联的空隙空间的层或成层结构,所述层和/或成层结构允许液体水在没有加压的情况下透过其厚度。相反,术语“水不可渗透的”是指在没有加压的情况下液体水不能透过其厚度的层或成层结构。根据本定义,水不可渗透的层或成层结构可透过水蒸气,即为“蒸气可透过的”。如本领域所熟知的那样,测量典型地用于吸收制品的材料对水的透过性的常用方法为静水压力试验,也称为静水头试验或简称为“水头”试验。适用于水头试验的熟知法定方法由NDA(以前的International Nonwovens and DisposablesAssociation,现在的The Association of the Nonwoven Fabrics Industry)和EDANA(European Disposables And Nonwovens Association)核准。
术语“近侧”和“远侧”分别指元件的位置相对靠近或远离结构的中心,例如,纵向延伸元件的横向近侧边缘距纵向轴线的位置比同一元件的横向远侧边缘相对于同一纵向轴线的位置更近。当用来描述相对于轴的相对位置时,同义词分别包括“内侧”和“外侧”。
术语“内部”和“外部”分别是指当吸收制品被穿着时旨在背对或面向穿着者身体放置的元件位置和旨在背对或面向在吸收制品外穿着的任何衣服放置的元件位置。“内部”和“外部”的同义词分别包括“里面”和“外面”,以及“内侧”和“外侧”。同样,当吸收制品的方向使得其内部朝上时,例如,当将其展开以准备使穿着者位于其上时,同义词分别包括“上面”和“下面”、“上方”和“下方”、以及“顶部”和“底部”。
如可从附图中所看到,示例性尿布20的一个端部被构造成前腰区36,纵向相对的端部被构造成后腰区38,而中间部分被构造成裆区37。
尿布20的基本结构包括底座100,其具有横向延伸的前边缘136、纵向相对的后边缘138、横向相对的侧边137、内表面102以及外表面104。纵向轴线42延伸通过前边缘136和后边缘138的中点,而横向轴线44延伸通过侧边137的中点。图1所示的示例性底座100另外还具有纵向延伸并横向相对的侧翼147以及横向相对的底座耳部106和/或108,其在下面有更详细的描述。
尿布20的基本结构还包括连接到底座100上的吸收组件200。吸收组件200吸收并保留液体身体排泄物。吸收组件200具有横向延伸的前边缘236、纵向相对的后边缘238、横向相对的侧边237、内表面202以及外表面204。吸收组件200可相对于纵向轴线42和横向轴线44中的任一个或两个对称或不对称地设置。例如,图1所示的吸收组件200相对于纵向轴线42对称设置,而相对于横向轴线44不对称地向前腰区36偏移设置。
吸收组件200的边缘可位于底座100的相应边缘内,如图1所示的示例性尿布20中那样。其中吸收组件200的一个或多个边缘位于底座100的相应边缘内的这种构型可能是可取的,例如,为了使邻近底座边缘的相对更柔韧的层能够符合穿着者的身体并从而形成贴靠穿着者皮肤的有效箍状密封,不受相对较厚且相对较不柔韧的吸收组件的约束。可供选择地,吸收组件200的一个或多个边缘可与底座100的对应边缘重合。
当尿布20穿着在穿着者的下体上时,前腰边缘136和后腰边缘138环绕穿着者的腰部,而同时底座侧边137环绕穿着者的腿部,裆区37通常位于穿着者腿部之间,并且吸收组件200从前腰区36延伸通过裆区37至后腰区38。
底座100包括水不可渗透的底片26。底片26形成预期朝向在尿布20外穿着的任何衣服放置的外表面。许多适用作底片26的材料已为人们所熟知,包括聚丙烯和其它聚烯烃薄膜。多层底片例如薄膜和无纺材料的层压材料也已为人们所熟知并可适用作底片26。这种层压底片的方向可使非织造材料31设置在外侧,如图15和图16所示,以提供比使用薄膜30作为最外层所提供的更像衣服状最外层的感觉和外观。
底座100可以但不一定另外包括连接到底片26上的内衬22。这种内衬22优选由不刺激穿着者皮肤的柔软材料制成。许多适用于内衬22的材料已为本领域所熟知,包括人造丝和合成非织造材料如纺粘或梳理成网的聚丙烯或聚酯。内衬22可形成预期朝向穿着者的身体放置从而用来使穿着者的皮肤与一部分底片26隔离的底座100内表面102的一部分,这可能是可取的,例如,当在皮肤与底片薄膜之间的接触可能不舒适的情况下穿着尿布20时。
内衬22可延伸到与底片26一样的宽度和长度。例如,在图1和图2所示的示例性底座100中,未单独标识出内衬22的边缘,因为内衬22具有和底片26相同的范围。可供选择地,内衬22的一个或多个边缘可位于底片26各边缘的内侧。例如,参考图1所示的示例性尿布20,仅露出位于吸收组件200的前边缘236和底座100的前腰边缘136之间的缝隙117中以及吸收组件200的后边缘238和底座100的后腰边缘138之间的缝隙118中的那部分内衬22,而内衬22的剩余部分被吸收组件200和侧翼147覆盖。所以,设置在前腰区36缝隙中的内衬22横向延伸带和设置在后腰区38缝隙中的内衬22类似横向延伸带可足以将穿着者的皮肤与这两个缝隙中的底片26隔离。
如图所示,示例性底座100具有纵向延伸并横向相对的侧翼147,其设置在向内朝向穿着者并接触穿着者的尿布20内部上。侧翼147通过横向向内,即朝向纵向轴线42折叠部分底座100形成,以便既形成底座100的相应侧翼147又形成侧边137,如图所示。每个侧翼147都具有近侧边缘157。
每个侧翼147都连接到邻近前腰边缘136的连接区153和邻近后腰边缘138的纵向相对连接区154内的底座100内表面102上,如图9所示。在连接区之间,侧翼147的近侧边缘157保持自由,即未连接到底座100的内表面102或吸收组件200上。同样在连接区之间,弹性线167连接在邻近每个侧翼147的近侧边缘157处。每个弹性线167被封在邻近每个侧翼147的近侧边缘157处形成的褶痕170内。当拉伸时,弹性线167使邻近的侧翼边缘能够伸展至底座的平展未收缩长度。当能够松驰时,弹性线167收缩并抬高近侧边缘157,从而将侧翼147抬高到起邻近吸收组件200的侧边237的侧部屏障作用的位置,如图8所示。这种收缩使邻近的侧翼边缘紧,从而使尿布20弯曲成“U”字形,其中“U”字形的内部由尿布20预期朝向穿着者身体放置的那部分形成,如图10所示。
当尿布20被穿着时,松弛的“U”字形通常符合穿着者的身体,使得前腰区36和后腰区38可扣紧在一起以环绕穿着者的腰部和腿部。当尿布20以这种方式被穿着时,弹性线167趋于使抬高的侧翼147近侧边缘157保持与穿着者的身体接触,从而形成密封以有助于防止沉积的身体排泄物渗漏出尿布20。选择抬高的近侧边缘157的横向间距,使穿着者下体的身体排泄物能够沉积在抬高的侧翼147之间的空间内,从而直接沉积在吸收组件200上。当每个侧翼147的近侧边缘的自由部分被抬高时,其宽度有效地成为其高度,并且侧翼起到防渗漏侧部屏障的作用。优选选择此高度,以使抬高的近侧边缘157能够在吸收组件200保持接触身体的同时贴合穿着者身体的腿部皱褶。
在最终的尿布中,优选底座具有非平直而是有切口的侧边137,从而使尿布20在平面图中具有“T”字形或“I”字形的总体形状。这种非矩形构型可使尿布20在其穿着时具有合体的外观并且也可给人以尿布20将在穿着者腿部之间舒适贴合的感觉。底座的一种示例性非矩形构型显示于图5和图6中。如这些图所示,后腰区138中底座100的横向相对部分108可横向向外延伸,同时邻近的侧翼147保持横向向内折叠。横向向外延伸部分108形成后底座“耳部”,其使尿布具有“T”字形。可供选择地,前腰区136中底座100的横向相对部分106可横向向外延伸形成前底座耳部,从而使尿布具有“T”字形。作为另一个可供选择的方式,前部106和后部108都可横向向外延伸形成四个底座耳部,同时邻近的侧翼147保持横向向内折叠,在这种构型中,使尿布20具有“I”字形,如图24所示。
为了易于生产和包装,优选底座耳部106和/或108保持横向向内折叠直到当将尿布20应用于穿着者身体上时使用者想要定位他们以便使用时。为此,如图1所示,每个底座耳部的一个边缘可由易断的连接线91来界定,沿着这条线底座耳部可部分脱离以便定位,即横向向外展开。这种易断的连接线可在一层或层压层中通过穿孔、通过形成当受力时在此处材料将优选断裂的脆性区域、通过形成当受力时在此处材料将优选撕裂的较弱区域、通过形成当受力和/或弯曲时在此处材料将优选粉碎的易碎区域、或通过提供适于所涉及材料的易断性的其它方法而形成。
可供选择地,如图2所示,每个底座耳部的一个边缘可由切割线92界定,在此处底座耳部从邻近侧翼147上切断。因为此切割线的形成将使底座耳部能够过早展开,所以底座耳部在定位之间可通过可释放的连接构件94保持横向向内折叠,这种定位是通过被释放并横向向外展开以致横向向外突出超过邻近侧翼。如图4所示,可释放的连接构件94可包括设置在底座耳部上的可释放的连接构件95和当底座耳部横向向内折叠时设置在底座耳部下的内表面102上的互补可释放的连接构件96。如果需要另外确保底座耳部不会无意被例如可能使易断连接线断裂的操作过早定位,这种可释放的连接构件94也可与由易断连接线91界定的底座耳部联合使用。
可用很多熟知的方式将前腰区36和后腰区38扣紧到一起以环绕穿着者的腰部和腿部。例如,为此可采用隔离扣紧装置如安全别针、隔离带、隔离系带和/或隔离腰带。可供选择地或另外地,可将扣紧元件加入底座100中以使使用者能够无需任何隔离扣紧装置或和任何隔离扣紧装置一起将尿布20应用到穿着者的身体上。此类合成一体的扣紧元件的很多合适类型已为人们所熟知,例如,包括粘结带、粘合剂、粘结带突出部、系带、纽扣、钩、环、按扣扣件、其它形式的机械扣件、胶贴等等。当构造成使用的形状时,这些合成一体的扣紧元件可横向或纵向向外突出,或它们可完全位于尿布20的边缘内。
例如,横向相对的扣紧元件可连接到底座耳部上。图中所示的扣紧元件120设置在后底座耳部108上,并且可用于以后压前的方式将后腰区38扣紧到前腰区36上。可供选择地,类似的扣紧元件可设置在前底座耳部106上,并且可用于以前压后的方式将前腰区36扣紧到后腰区38上。作为另一个可供选择的方式,类似的扣紧元件可设置在无底座耳部从其上伸出的腰区上,并且可用于将腰区连接到从相对腰区伸展出的底座耳部上。
图5和图6所示的扣紧元件120以带状形式从底座耳部108横向向外突出。这些带子可涂敷有粘合剂。合适的粘结带以名称XMF99121购自位于美国明尼苏达州圣保罗市的3M Corporation。为了防止它们过早粘附在表面上,这些粘结带扣紧元件典型折叠以防止露出粘合剂,随后展开露出粘合剂以便使用。例如,在图3中,两个扣紧元件120都显示是折叠的,而在图5、图6和图7中,左扣紧元件120a仍显示是折叠的,而右扣紧元件120b显示为展开的并从而具有可使用的构型。
任选地,扣紧片(未示出)可连接在底座100的外表面104上,如2005年8月4日公布的美国专利申请公布2005/0171499A1中所述。当提供了扣紧片时,可将粘结带扣紧元件粘附在扣紧片上将后腰区38和前腰区36扣紧在一起。加入这种扣紧片可能是可取的,例如,为了可能使用相对廉价和相对较弱的材料作为底片26。
几种粘性扣紧贴片的构型描述于美国专利中请公布2005/0171499A1中。在本发明中,优选这些粘性扣紧贴片设置在底座耳部上。例如,图11、图12、图13和图14所示的后扣紧元件120可由粘性扣紧贴片形成,并且前腰区36中的互补前扣紧元件110可由相容的粘性扣紧贴片形成。
可供选择地,当采用层压底片并且方向是非织造材料方向设置在外侧时,典型地要求特定配对扣件元件的一些机械扣件形式,如典型与套环配合的钩子,可构造成与非织造材料接合,从而不必包含特定的配对扣件元件。例如,如图15所示,扣紧元件120可由构造成与层压底片26的非织造层31接合的钩子扣紧巾贴片形成。这种钩子扣紧元件可类似于图13所示的粘性扣紧贴片扣紧元件那样设置。
如美国专利申请公布2005/0171499A1中所述,一部分或整个底座100可制成可延展至大于制造底座材料,如底片26、内衬22或二者的固有延展性的程度。为了使底座100在穿着者运动期间能够适形于穿着者的身体,额外的延展性可能是可取的。额外的延展性也可能是可取的,例如,为了使包括在伸长之前具有特定尺寸的底座100的尿布20的使用者能够伸展底座100的前腰区36、后腰区38或两个腰区以环绕其腰部圆周属于预定范围的个体穿着者的腰部,即使尿布适合个体穿着者。只要裆区37的伸展程度相对小于腰区,腰区的这种伸展可使尿布具有大致沙漏形形状,并且可在尿布20被穿着时赋予其合体的外观。另外,为了使尿布的成本降至最低,额外的延展性也可能是可取的。例如,可采用仅足够制造缺乏这种延展性的相对较小尿布的材料量来制造能够进行伸展的尿布,其与穿着者的贴合性大于较小尿布的贴合性。换句话讲,为了在材料如所述那样制成可延展的时候,制造能够被适当贴合到特定身材的穿着者身上的尿布,需要更少的材料量。
底座100在横向上的额外延展性比在纵向上的额外延展性相对更有用。当穿着者从站到坐改变姿势时穿着者的腹部可能扩张,并且相应的腹部扩张增大了底座100的腰部边缘所环绕的圆周,迫使腰区横向伸展。
底座100中的额外横向延展性可以多种方法提供。例如,由其制成底座100的材料可用任何已知的方法进行打褶。可供选择地,底座的全部或一部分可由成形纤网材料或纤网材料的成形层压材料制成,如公布于1996年5月21日的美国专利5,518,801中所述的那些。图17显示了这种成形纤网材料305的示例性片断300。该成形纤网材料305包括明显的横向延伸的区域310,其中原始材料已经用压花或另外的变形方法进行改变以形成纤网中大致纵取向的交替脊312和谷314的图案。成形纤网材料305也包括位于横向延伸的改变区域310之间的横向延伸的未改变区域316。
可将这种成形纤网材料305横向延伸超过其原始尺寸所施加的力相对小于未变形时将同一材料伸展到同一程度所需要的力。具体地讲,施加方向通常垂直于脊312和谷314的反向分散力的效果包括沿着在反向力之间的轴线伸长这种成形纤网材料和主要在非改变区域316中产生相抗衡的收缩力。这种阻力与处于未改变形式的同一材料伸长到至少达到其中改变区域中的脊和谷变平并开始产生阻力的程度同一程度时产生的阻力相比相对较小。因此,在对用于吸收制品的所期望的横向扩张型式有用的延展性范围内,此类成形纤网材料显示具有与传统的弹性材料类似的可延展性质。然而,此类成形纤网材料可由本来没有弹性的较廉价材料制成,因此在它们的使用可提供在加工吸收制品的成本方面的优点。
如图19、图20、图21和图22所示,吸收组件200包括吸收芯250。吸收芯250具有横向延伸的前边缘256、纵向相对的后边缘258、左侧边缘257a和横向相对的右侧边缘257b。吸收芯250的任何或所有边缘可位于吸收组件200的相应边缘内,或可与之重合。例如,在图19所示的示例性吸收组件200中,吸收芯250的侧边257横向位于吸收组件200的侧边237内,而吸收芯250的前边缘256和后边缘258与吸收组件200的相应前边缘236和后边缘238重合。
吸收组件200可在吸收组件200的任何部分或整个区域连接到底座100上。优选地,将吸收组件200在其外表面204上以十字形连接图案,即以形成或排列成交叉或“+”形状的连接图案连接到底座100上。十字形连接图案可为邻接的,即整个图案其所有部分可以一种未破损的顺序接触或连接。可供选择地,十字形连接图案可包括分离的部分,从而不接触,然而仍然使得整个图案形状排列成十字形。例如,不接触的十字形连接图案可包括沿着纵向轴线设置的纵向延伸部分和沿着或邻近横向轴线设置的分离的左右横向远侧部分,从而将整个图案的形状形成十字形。在十字形连接图案210的范围内,可连续地或间断地将吸收组件200连接到底座100上。例如,可将粘合剂的薄膜连续施用在整个十字形连接图案区域上,然后用来将吸收组件连续地连接到底座上。作为一个可供选择的实施例,可将粘合剂不连续地施用在十字形连接图案处或内部,例如以点状、带状、串珠状、螺旋状等,然后用来将吸收组件连接到底座上。
示例性接触十字形连接图案210显示于图18、图19、图20、图21和图22中。位于这种十字形连接图案外的底座100部分190不受与吸收组件200连接的限制,因此保持了可延展性。具体地讲,类似图18、图19和图21所示的十字形连接图案210的相对较窄纵向伸展部分212使得前腰区36中和后腰区38中底座100的大部分宽度可自由伸展,从而使得在这些区域中底座100能够横向伸展。类似图18、图19、图20和图22所示的十字形连接图案210的相对较宽横向延伸部分214防止裆区37中吸收组件200连接的那部分底座100在该区域中相对于吸收组件200移动。当弹性线167抬高近侧边缘157接触穿着者身体时,十字形连接图案210的相对较宽横向延伸部分214还可有助于侧翼147的有效性。例如,如果裆区37中的底座100自由横向向内即朝向纵向轴线42移动,使得左侧边缘137a和/或右侧边缘137b朝向纵向轴线42移动,则侧翼147可能容易扭曲并不能与身体保持接触。然而,因为十字形连接图案210的相对较宽横向延伸部分214将底座100限制在裆区37宽度的相对较宽部分上,所以当侧翼147被弹性线167抬高时,它在其基座处更好地受到支撑。
十字形连接图案210可相对于底座100的纵向轴线42和横向轴线44的任一个或两个对称或不对称设置。例如,图19所示的十字形连接图案210相对于纵向轴线42对称设置,而相对于横向轴线44不对称地向前腰区36偏移设置。
可将吸收芯250设置在下覆盖片和上覆盖片之间,所述下覆盖片以与底座内表面102面对面的排列设置在吸收芯F3>250的外表面上,所述上覆盖片设置在吸收芯250的内表面上。可将这种上覆盖片和下覆盖片连接到一起以在它们之间容纳吸收芯250,从而形成吸收组件200。例如,在如图所示的示例性吸收组件200中,上覆盖片24和下覆盖片25在位于或邻近粘附区29中吸收组件200的侧边237处连接在一起。可供选择地,上覆盖片24和下覆盖片25可在除吸收组件200的侧边237以外的地方连接在一起,例如,位于或邻近端边236和238处,或同时位于或邻近端边236和238以及侧边237处。
上覆盖片24是水可渗透的,使液体身体排泄物能够通过进入吸收液体排泄物的吸收芯250。下覆盖片25可以是水不可渗透的。然而,下覆盖片25优选为水可渗透的。在上覆盖片24和下覆盖片25均为水可渗透的实施方案中,沉积在上覆盖片24上但未通过上覆盖片24至吸收芯250的任何液体排泄物可在吸收组件200的边缘周围流动到达下覆盖片25,然后通过下覆盖片25至吸收芯250。上覆盖片24可形成预期靠近穿着者身体放置的吸收组件200的内表面202。上覆盖片24优选由不刺激穿着者皮肤的柔软材料制成。许多适于水可渗透覆盖片的材料已为本领域所熟知,包括合成非织造材料如纺粘或梳理成网聚丙烯、聚酯或人造丝。同样,许多适于水不可渗透的覆盖片的材料已为本领域所熟知,包括适于底片26的材料。
吸收芯除了一个或多个存储部件之外还可包括采集部件。吸收芯采集部件用来采集沉积的液体身体排泄物并将其传送到吸收芯存储部件。可采用将液体身体排泄物吸收和分配到存储部件的任何多孔吸收材料来形成采集部件。优选的采集部件材料包括合成纤维材料、开孔型聚合物泡沫材料、纤维非织造材料、纤维质非织造材料和合成/纤维质非织造材料的各种组合物。此类采集材料的实例更全面地描述于1990年8月21日的美国专利4,950,264中。适合于本发明采集组件的高蓬松非织造采集材料可以材料命名代号98920购自位于美国新泽西州Landisville的Polymer Group,Inc.(PGI),地址为:450 N.E.Blvd,Landisville,New Jersey 08326,U.S.A。叠放在吸收芯存储部件272上包括采集部件290的这种吸收芯250显示于图25中。可将例如薄纸或非织造材料的分隔片292设置在吸收芯存储部件272和吸收芯采集部件290之间以有助于确保没有任何可能包括于吸收芯存储部件中由超吸收聚合物形成的凝胶接触穿着者的皮肤。
适于吸收芯的熟知吸收材料包括通常称作“透气毡”的粉碎木浆形式的纤维素纤维、天然或合成纤维材料层或片、超吸收聚合物等。这些吸收材料可单独或组合使用,并且许多可以离散形式,即纤维、粒子、颗粒、层等形式使用。
这种离散形式的吸收材料可被固定在口袋中,所述口袋由间断接触并粘附在基质如覆盖片上,同时在口袋处脱离基质片的热塑性材料如热熔融粘合剂层形成。具有这种口袋结构的吸收组件详细地描述在2004年8月26日的美国专利申请公布2004/0167486和2004年8月19日的2004/0162536中。具有这种结构的示例性吸收组件200显示于图23中。在该吸收组件200中,吸收芯250包括包含在由热塑性材料层275形成的口袋280内的超吸收聚合物270颗粒。这种吸收芯250不包含纤维素纤维。可供选择地,吸收芯250可既包括超吸收聚合物颗粒又包括透气毡,并且两种材料可都包含在口袋中。如图23所示,热塑性材料层275在连接区域282处间断地接触并粘附下覆盖片25上。在连接区域282之间,层275脱离下覆盖片25形成口袋280。层275可具有热塑性材料纤维片的形式,液体废弃物可透过其到超吸收聚合物颗粒270被吸收。在图23中,显示了单独的上覆盖片24,其叠放在热塑性材料层275上。可供选择地,可省略单独的上覆盖片24并且呈纤维片形式的层275可起到上覆盖片24的作用。
所有专利、专利申请和任何此后公布的相关专利和任何相应公布的外国专利申请的公开内容,以及此说明中列出和/或引用的所有出版物,均全文引入本文以供参考。非常明确地否认引入本文以供参考的任何文献或任何文献组合解释或公开了本发明。在术语定义之间存在任何冲突的情况下,本说明书中的用法优先于与其发生冲突的任何所引入参考文献中的用法。
Claims (20)
1.一种一次性尿布,包括:
底座,所述底座具有前腰区、后腰区、以及在腰区之间的裆区、纵向轴线和横向轴线、限定其宽度的横向相对的侧边、限定其长度的纵向相对的前后腰端边、内表面和外表面,
所述底座包括水不可渗透的底片,
所述底座还包括由在至少所述裆区内的所述底座的横向向内折叠部分形成的横向相对的侧翼,每个侧翼邻近其纵向远端被连接到内表面上并且具有邻近其近侧边缘连接的纵向延伸的弹性收紧构件,
所述底座还包括横向相对的可灵活定位的底座耳部,所述底座耳部由在至少一个所述腰区内的底座的横向向内折叠部分形成,每个底座耳部在定位之前通过易断的连接线被保持横向向内折叠,方法是在所述易断线处将其脱离并横向向外展开以致横向向外突出超过相应的侧翼;和
连接到所述底座的内表面上的吸收组件,所述吸收组件具有相对于所述底座的相应侧边和端边最近设置的侧边和端边。
2.如权利要求1所述的一次性尿布,其中所述底座在两个所述腰区内均包括所述底座耳部。
3.如权利要求1所述的一次性尿布,其中所述底座包括扣紧元件,所述扣紧元件设置在至少两个所述底座耳部上并且适于将所述前腰区扣紧到所述后腰区上以环绕穿着者腰部和腿部。
4.如权利要求3所述的一次性尿布,其中所述扣紧元件包括粘结带。
5.如权利要求1所述的一次性尿布,其中所述底座包括连接到所述底片上并形成所述内表面的一部分的非织造材料内衬。
6.如权利要求1所述的一次性尿布,其中所述底片是薄膜和非织造材料的层压材料,所述非织造材料设置在所述薄膜的外侧。
7.如权利要求6所述的一次性尿布,其中所述扣紧元件包括适于与所述底片非织造材料接合的钩子。
8.如权利要求1所述的一次性尿布,其中所述吸收组件以十字形连接图案被连接到所述底座上,所述十字形连接图案具有与横向延伸部分相交的纵向延伸部分。
9.如权利要求8所述的一次性尿布,其中在所述吸收组件下面并位于所述十字形图案以外的一部分所述底座是横向可延展的。
10.如权利要求9所述的一次性尿布,其中所述底座的可延展部分包括成形纤网材料,所述纤网材料包括至少两个不同的横向延伸压花区,每个区包含由压花产生的大致纵向走向的交替脊和谷的图案,并且还包含位于所述压花区之间的非压花区,使得与压花之前将所述底座的同一部分横向延伸到给定长度所需的力相比,只施加相对较小的力就可将这部分所述底座横向延伸到同一给定程度。
11.如权利要求8所述的一次性尿布,其中所述纵向延伸部分相对于所述纵向轴线对称设置,并且所述横向延伸部分相对于所述横向轴线不对称设置。
12.如权利要求11所述的一次性尿布,其中所述横向延伸部分纵向向所述前腰区偏移。
13.如权利要求1所述的一次性尿布,其中所述易断连接线包括穿孔。
14.一种一次性尿布,包括:
底座,所述底座具有前腰区、后腰区、在腰区之间的裆区、纵向轴线和横向轴线、限定其宽度的横向相对的侧边、限定其长度的纵向相对的前后腰端边、内表面和外表面,
所述底座包括水不可渗透的底片,
所述底座还包括由在至少所述裆区内所述底座的横向向内折叠部分形成的横向相对的侧翼,每个侧翼邻近其纵向远端被连接到所述内表面上,并且具有邻近其近侧边缘连接的纵向延伸的弹性收紧构件,
所述底座还包括横向相对的可灵活定位的底座耳部,所述底座耳部由在至少一个所述腰区内所述底座的横向向内折叠部分形成,扣紧元件设置在至少两个所述底座耳部上并适于将所述前腰区扣紧到所述后腰区上以环绕穿着者腰部和腿部,每个底座耳部在定位之前通过可释放的连接构件被保持横向向内折叠,方法是在连接构件处将其释放并横向向外展开以致横向向外突出超过所述相应的侧翼;和
连接到所述底座的内表面上的吸收组件,所述吸收组件具有相对于所述底座的相应侧边和端边最近设置的侧边和端边。
15.如权利要求14所述的一次性尿布,其中所述可释放的连接构件包括粘合剂。
16.如权利要求14所述的一次性尿布,其中所述可释放的连接构件包括互补可释放的连接构件,该互补可释放的连接构件设置在所述底座耳部上和所述横向向内折叠的底座耳部下面的内表面上。
17.如权利要求14所述的一次性尿布,其中所述底座在两个所述腰区内均包括所述底座耳部。
18.如权利要求14所述的一次性尿布,其中所述吸收组件以十字形连接图案连接到所述底座,所述十字形连接图案具有与横向延伸部分相交的纵向延伸部分。
19.如权利要求18所述的一次性尿布,其中在所述吸收组件下面并且位于所述十字形图案以外的一部分所述底座是横向可延展的。
20.一种一次性尿布,包括:
底座,所述底座具有前腰区、后腰区、以及在腰区之间的裆区、纵向轴线和横向轴线、限定其宽度的横向相对的侧边、限定其长度的纵向相对的前后腰端边、内表面和外表面,
所述底座包括水不可渗透的底片和连接到所述底片上并且形成所述内表面的一部分的非织造材料内衬,
所述底座还包括由在至少所述裆区内所述底座的横向向内折叠部分形成的横向相对的侧翼,每个侧翼邻近其纵向远端被连接到所述内表面上,并且具有邻近其近侧边缘连接的纵向延伸的弹性收紧构件,
所述底座还包括横向相对的可灵活定位的底座耳部,所述底座耳部由在每个所述腰区内所述底座的横向向内折叠部分形成,扣紧元件设置在至少两个所述底座耳部上,所述扣紧元件包括粘结带并适于将所述前腰区扣紧到所述后腰区上以环绕穿着者腰部和腿部,每个底座耳部在定位之前通过易断的连接线被保持横向向内折叠,方法是在易断线处将其脱离并横向向外展开以致横向向外突出超过所述相应的侧翼;和
连接到所述底座的内表面上的吸收组件,所述吸收组件具有相对于所述底座的相应侧边和端边最近设置的侧边和端边。
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-
2005
- 2005-11-23 US US11/286,934 patent/US7737324B2/en not_active Expired - Fee Related
-
2006
- 2006-11-21 AU AU2006318035A patent/AU2006318035A1/en not_active Abandoned
- 2006-11-21 CA CA002630331A patent/CA2630331A1/en not_active Abandoned
- 2006-11-21 JP JP2008540776A patent/JP2009515637A/ja active Pending
- 2006-11-21 RU RU2008115914/14A patent/RU2383324C2/ru not_active IP Right Cessation
- 2006-11-21 CN CNA2006800009550A patent/CN101031269A/zh active Pending
- 2006-11-21 EP EP06831895A patent/EP1951179A2/en not_active Withdrawn
- 2006-11-21 BR BRPI0618829-0A patent/BRPI0618829A2/pt not_active IP Right Cessation
- 2006-11-21 WO PCT/IB2006/054364 patent/WO2007060612A2/en active Application Filing
- 2006-11-22 AR ARP060105134A patent/AR058226A1/es not_active Application Discontinuation
-
2008
- 2008-04-14 ZA ZA200803294A patent/ZA200803294B/xx unknown
-
2010
- 2010-06-04 US US12/794,015 patent/US20100241096A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
JP2009515637A (ja) | 2009-04-16 |
US7737324B2 (en) | 2010-06-15 |
AU2006318035A1 (en) | 2007-05-31 |
ZA200803294B (en) | 2009-01-28 |
RU2008115914A (ru) | 2009-12-27 |
WO2007060612A2 (en) | 2007-05-31 |
EP1951179A2 (en) | 2008-08-06 |
CA2630331A1 (en) | 2007-05-31 |
US20070118091A1 (en) | 2007-05-24 |
AR058226A1 (es) | 2008-01-23 |
WO2007060612A3 (en) | 2007-09-07 |
RU2383324C2 (ru) | 2010-03-10 |
BRPI0618829A2 (pt) | 2011-09-13 |
US20100241096A1 (en) | 2010-09-23 |
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