CN101102736B - 具有脐部切口的吸收制品 - Google Patents
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Abstract
一种具有非线性切割切口而没有显著横向延伸产生的片件存在的一次性吸收制品。所得吸收制品具有互补的前端边和后端边。所述前端边具有至少三个切点(a1,a2,b)。切点b在纵向上位于a1和a2的内侧。所述后端边具有至少三个切点(x1,x2,y),其中y在纵向上位于x1和x2的外侧。吸收制品围绕第一折叠线纵向折叠。可在点a2和x2之间画第一折叠线。吸收制品围绕第二折叠线纵向折叠,可在点a1和x1之间画第二折叠线。
Description
技术领域
本发明涉及尤其适于新生婴儿的吸收制品。更具体地讲,本发明涉及具有U字形切口的尿布。该尿布不存在可能造成安全隐患的显著横向延伸产生的片件。
背景技术
新生婴儿特别容易在脐处发炎、感染和移殖细菌,这是因为残留、新切的脐带为细菌侵入提供了极佳的场所,而且会由其上面的尿布产生摩擦刺激。由于婴儿扭动、踢动和移动,常规尿布对皮下组织仍然外露的脐会产生摩擦移动,摩擦移动经常产生疼痛部位,使婴儿燥烦不安。脐部区域会显著发红和发炎。另外,其上面的尿布可能成为对于未愈合的、切断的脐带的细菌载体并且导致感染。
由于上述原因,特别适合新生婴儿的常规尿布通常有一个开口,此开口沿着尿布的前片的端边宽度居中。所述开口一般被称为U字形切口、V字形切口或非线性切口。在产生所述非线性切口时使用一种非线性切割装置。更具体地讲,通常利用多个连续纤维网材料来制成单独的尿布。这些纤维网材料随后被切割成离散的制品,即尿布。然而,在所述常规非线性切口期间,尿布经常具有可能造成安全隐患的显著横向延伸产生的片件。因此,需要这样一种尿布/切口设计和方法,该方法能够提供非线性切口而没有显著横向延伸产生的片件。
发明内容
一种一次性吸收制品具有纵向轴线和横向轴线。所述吸收制品还具有形状互补并且由非线性切口形成的前端边和后端边。所述前端边具有至少三个切点(a1,a2,b)。切点b在纵向上位于a1和a2的内侧。所述前端边具有至少两个边界点(c1,c2),其中:
(i)c1和c2在纵向上位于a1和a2的内侧,并且(ii)c1和c2在纵向上位于b的等距离处或外侧。
前端边具有自所述点a1至所述点c1的轮廓段。该轮廓段为自所述点a1至所述点b的轮廓段的镜像。所述前端边具有沿着自点a1至点c1的所述轮廓段测量的路径长度。该路径长度小于或等于沿着自点a1至点b的所述轮廓段测量的路径长度。
后端边具有至少三个切点(x1,x2,y),其中y在纵向上位于x1和x2的外侧。所述后端边具有至少两个边界点(z1,z2),其中:
(i)z1和z2在纵向上位于x1和x2的外侧,并且
(ii)z1和z2在纵向上位于y的等距离处或内侧。
后端边具有自所述点x1至所述点z1的轮廓段。该轮廓段为自所述点x1至所述点y的轮廓段的镜像。后端边具有沿着自点x1至点z1的所述轮廓段测量的路径长度。该路径长度小于或等于沿着自点x1至点y的所述轮廓段测量的路径长度。
吸收制品围绕第一折叠线纵向折叠。可在点a2和x2之间画第一折叠线。吸收制品围绕第二折叠线纵向折叠,可在点a1和x1之间画第二折叠线。
此外,吸收制品可具有在所述切点b和所述切点a1之间测量的纵向距离d,其中所述纵向距离为约5mm至约25mm,优选为10mm。
另外,吸收制品可具有在所述折叠线之间测量的横向距离f,其中所述横向距离为约80mm至约100mm,优选为90mm。
此外,可将一次性吸收制品构造成为开口式尿布或短裤。
附图说明
虽然本说明书通过特别指出并清楚地要求保护本发明的权利要求作出结论,但应该相信通过下述结合附图的说明,可更充分地理解本发明。所有附图均未必按比例绘制。
图1为接合到耳片的连续纤维网材料的示意顶视图,所述纤维网已经过转换加工以最终制造根据本发明的离散吸收制品;
图2为绘有折叠线的图1的纤维网的示意顶视图;
图3为图2的纤维网的示意顶视图,其中第一部分围绕第一折叠线被纵向折叠;
图4为图3的纤维网的示意顶视图,其中第二部分围绕第二折叠线被纵向折叠;
图5为显示有非线性切割线的图4的纤维网的示意顶视图;
图6为被分离成单独吸收制品的图5的纤维网的示意顶视图;
图7为图6的环绕区域的特写;
图8为未被折叠的图6的吸收制品的示意顶视图;和
图9为显示根据本发明的关键尺寸的图8的吸收制品的示意顶视图。
具体实施方式
定义:
本文所用术语“吸收制品”是指吸收和容纳身体渗出物的装置。更具体地讲,吸收制品是指紧贴或靠近穿着者身体放置以吸收和容纳由身体排出的各种渗出物的装置,例如:失禁贴身短内裤、失禁内衣、吸收插件、尿布固定器和衬里、妇女卫生内衣等等。所述吸收制品可包括具有衣服表面和身体表面的吸收芯、邻近所述吸收芯的所述身体表面设置的液体可透过的顶片、以及邻近所述吸收芯的所述衣服表面设置的液体不可透过的底片。
本文所用术语“一次性的”是指通常不打算洗涤或恢复或再次作为吸收制品使用的吸收制品(即,将它们在一次使用后丢弃,并且优选将其回收利用、堆肥处理或以其它环境相容的方式抛弃)。
本文所用术语“尿布”是指通常由婴儿和失禁者围绕下体穿着的吸收制品。
本文所用术语“短裤”是指具有腰部开口和腿部开口的一次性衣服。所述衣服是为婴儿或成人穿着者设计的。通过将穿着者的腿伸入腿部开口并将短裤拉到穿着者下体附近的位置可将短裤穿到使用者身上。短裤可使用任何合适的方法来预成形。这些方法包括但不限于利用可重复扣紧的和/或不可重复扣紧的结合(例如,缝合、焊接、粘合剂、内聚粘合、扣件等)将制品的各部分接合在一起。短裤可在沿该制品周边的任何位置预成形(例如,侧扣紧、前腰区扣紧)。尽管本文采用了术语“短裤”,但所述短裤通常也称作“闭合尿布”、“预紧固尿布”、“套穿尿布”、“训练裤”和“尿布裤”。适用的短裤公开于1993年9月21日授予Hasse等人的美国专利5,246,433、1996年10月29日授予Buell等人的美国专利5,569,234、2000年9月19日授予Ashton的美国专利6,120,487、2000年9月19日授予Johnson等人的美国专利6,120,489、1990年7月10日授予Van Gompel等人的美国专利4,940,464、1992年3月3日授予Nomura等人的美国专利5,092,861、2002年6月13日提交的名称为“Highly Flexible And Low Deformation Fastening Device”的美国专利申请序列号10/171,249、1999年4月27日授予Kline等人的美国专利5,897,545和1999年9月28日授予Kline等人的美国专利5,957,908。
本文所用术语“纵向(MD)”或“纵向的”是指平行于制品和/或扣紧材料的最大线性尺度、并且包括所述纵向±45°内的方向。
本文所用术语“横向(CD)”、“侧向”或“横向”是指垂直于所述纵向的方向。
术语“接合”包括一些构型,利用这些构型可通过将一个元件直接连接到另一个元件上从而使该元件直接固定到另一元件上;也包括这样一些构型,利用这些构型将一个元件连接到中间件上,然后再把中间件连接到其它元件上,从而使该元件间接固定到另一元件上。
说明:
虽然吸收制品典型地作为包装在一起的离散制品出售给消费者,但所述吸收制品通常由至少两片连续纤维网材料制成。例如,图1显示两片示例性连续纤维网材料,即底片13和顶片15。将所述纤维网展开,然后送过数个单元操作(也称为转换加工)。在此转换加工期间,可将多个离散的部分放置并接合到一个或多个所述纤维网上。例如,可将第一前耳片120和第二前耳片122接合置于底片13和顶片15之间。所述前耳片之后将在应用所述吸收制品期间作为连接部件。类似地可将第一后耳片130和第二后耳片132接合到底片15上。所述后耳片与所述前耳片在应用所述吸收制品期间一起作为连接部件。本领域的技术人员应了解,所述耳片可以任何组合和放置次序接合到一个或两个纤维网上。从图1中可以看到,在此阶段(即在纵向折叠之前),所述连续纤维网材料15的第一纵向边缘116和第二纵向边缘117通常在纵向上位于距纵向中心线888的最外侧。在标识为吸收制品200的区域内,可类似地使第一前耳片220和第二前耳片222接合。同样可类似地使第一后耳片230和第二后耳片232接合。最后,所述连续纤维网材料15的第一纵向边缘216和第二纵向边缘217通常在纵向上位于距纵向中心线888的最外侧。在标识为吸收制品300的区域内,可类似地使第一前耳片320和第二前耳片322接合。同样可类似地使第一后耳片330和第二后耳片332接合。最后,所述连续纤维网材料的第一纵向边缘316和第二纵向边缘317通常在纵向上位于距纵向中心线888的外侧。
一旦将耳片接合,即沿着至少两条纵向延伸的轴线1000,1002分别按箭头1010和1012所示的方向折叠所述纤维网。图2显示了在纵向上位于距纵向中心线888的外侧并且在纵向上位于所述第一纵向边缘和第二纵向边缘的内侧的所述折叠线1000和1002。所述纵向中心线888以纵向延伸。
图3显示了正围绕第一纵向延伸轴线1000以箭头1010所示的方向折叠的图2的纤维网13,15。在折叠后,第一纵向边缘116,216,316纵向向内移动。此外,在标识为吸收制品100的区域内形成第一折叠边缘118。类似地,分别在区域200和300内形成第一折叠边缘218和318。
图4显示了围绕第二纵向延伸轴线1002以箭头1012所示的方向折叠的图3的纤维网13,15。在折叠后,第二纵向边缘117,217,317纵向向内移动。此外,在标识为吸收制品100的区域内形成第二折叠边缘119。类似地,分别在区域200和300内形成第二折叠边缘219和319。
图5显示沿着切割线2000被切割的图4的纤维网13,15。所述切割线2000可跨所述纤维网的纵向轴线为非线性。所述切割线2000的几何关键性将在以后讨论。所述切割线可为所述纤维网的100%切断,或为所述纤维网的小于100%穿孔。所述切割线可由任何适用技术产生,所述技术包括但不限于旋转刀片、往复式刀片、气刀和激光。
图6显示被分离成离散吸收制品100,200,300的图5的切断纤维网13,15。一旦分离,所述离散的吸收制品就可具有互补的前后端边。例如,吸收制品100具有前端边140和后端边150。所述端边的几何形状互补。更具体地讲,前端边140具有U字形切口部分142,以便对新生婴儿穿着者的肚脐提供物理间隙,而所述后端边150具有使其自身位于穿着者背部上的U字形突出部分152。所述边缘的几何形状必须互补,否则将导致在加工期间需要移除废片。图7显示图6内区域的近视图,以便更详细地观察沿着后端边150的折叠和切割部分。
图8显示了未折叠的图6的吸收制品100,该吸收制品与消费者自包装移出所述制品后打开的吸收制品类似。在此未折叠状态下,第一纵向边缘116和第二纵向边缘117现在在纵向上位于最外侧。沿着后端边150,横向延伸的材料片199由于以前的折叠和U字形切口而形成和成型。在此示例性新型实施方案中,所述横向延伸的材料片199未产生不美观的感觉,也未呈现以上讨论的安全隐患。只要U字形切口符合图9中所描绘的关键性,产生的延伸片199就不会呈现这种安全隐患。
图9显示突出不同关键尺寸的图8的未折叠吸收制品。例如,前端边140具有至少三个被标识为a1,a2和b的切点,其中b在纵向上位于a1和a2的内侧。此外,前端边140具有至少两个被标识为c1和c2的边界点,其中(i)c1和c2在纵向上位于a1和a2的内侧,并且(ii)c1和c2在纵向上位于b的等距离处或外侧。另外,轮廓段a-c(沿着点a和点c之间的端边140的轮廓测量)为轮廓段a-b[沿着点a和点b之间的前端边140的轮廓测量]的镜像。最后,轮廓段a-c的路径长度小于或等于轮廓段a-b的路径长度。由于其关系到后端边150的互补性切割,后端边150具有至少三个被标识为x1,x2和y的切点,其中y在纵向上位于x1和x2的外侧。此外,后端边150具有至少两个被标识为z1和z2的边界点,其中(i)z1和z2在纵向上位于x1和x2的外侧,并且(ii)z1和z2在纵向上位于y的等距离处或内侧。另外,轮廓段x-z(沿着点x和点z之间的后端边150的轮廓测量)为轮廓段x-y[沿着点x和点y之间的后端边150的轮廓测量]的镜像。最后,轮廓段x-z的路径长度小于或等于轮廓段x-y的路径长度。最终,可在点a2和x2之间画折叠线1000,并且可在点a1和x1之间画折叠线1002。
虽然只要满足以上几何形状关键性就可表现本发明,但可理想地设计一种一次性尿布,该尿布在切点b和切点a1,a2之间的纵向距离d在约5mm至约25mm的范围内,优选为10mm。另外,所述折叠线之间的横向距离f理想地在约80mm至约100mm的范围内,优选为90mm。
发明详述中所有引用文献的相关部分均引入本文以供参考。任何文献的引用并不可理解为是对其作为本发明的现有技术的认可。
尽管已用具体实施方案来说明和描述了本发明,但对于本领域的技术人员显而易见的是,在不背离本发明的精神和保护范围的情况下可作出许多其它的变化和修改。因此,有意识地在附加的权利要求书中包括属于本发明范围内的所有这些变化和修改。
例如,本领域的技术人员应了解,可利用具有不同类型扣件的吸收制品来实施本发明。此外,所述吸收制品可为开口式尿布或短裤。
例如,与其中将一部分前耳片切断并夹在前述尿布的材料层之间的图5-9的示例性实施方案所示不同,可使前耳片纵向向内移动,以免在U字形切口切割期间切断。
Claims (10)
1.一种具有纵向轴线和横向轴线的一次性吸收制品,包括:
形状互补并且由非线性切口形成的前端边和后端边;所述前端边具有至少三个切点a1、a2、b,其中b在纵向上位于a1和a2的内侧;所述前端边具有至少两个边界点c1、c2,其中:
(iii)c1和c2在纵向上位于a1和a2的内侧,并且
(iv)c1和c2在纵向上位于b的等距离处或外侧;
所述前端边具有自所述点a1至所述点c1的轮廓段,所述轮廓段为自所述点a1至所述点b的轮廓段的镜像;所述前端边具有沿着自点a1至点c1的所述轮廓段测量的路径长度,所述路径长度小于或等于沿着自点a1至点b的所述轮廓段测量的路径长度;
所述后端边具有至少三个切点x1、x2、y,其中y在纵向上位于x1和x2的外侧;所述后端边具有至少两个边界点z1、z2,其中:
(iii)z1和z2在纵向上位于x1和x2的外侧,并且
(iv)z1和z2在纵向上位于y的等距离处或内侧;
所述后端边具有自所述点x1至所述点z1的轮廓段,所述轮廓段为自所述点x1至所述点y的轮廓段的镜像;所述后端边具有沿着自点x1至点z1的所述轮廓段测量的路径长度,所述路径长度小于或等于沿着自点x1至点y的所述轮廓段测量的路径长度;所述吸收制品围绕第一折叠线纵向折叠,所述第一折叠线可在点a2和x2之间画出,所述吸收制品围绕第二折叠线纵向折叠,所述第二折叠线可在点a1和x1之间画出,
其中,该制品通过以下步骤制造:
提供至少两片连续纤维网材料;
在第一和第二折叠线处纵向折叠纤维网材料;
沿横向轴线方向切割折叠后的连续纤维网,以同时提供前端边和后端边。
2.如权利要求1所述的一次性吸收制品,还包括在所述切点b和所述切点a1之间测量的纵向距离d,所述纵向距离为5mm至25mm。
3.如权利要求1所述的一次性吸收制品,还包括在所述切点b和所述切点a1之间测量的纵向距离d,所述纵向距离为10mm。
4.如权利要求1所述的一次性吸收制品,还包括在所述折叠线之间测量的横向距离f,所述横向距离为80mm至100mm。
5.如权利要求1所述的一次性吸收制品,还包括在所述折叠线之间测量的横向距离f,所述横向距离为90mm。
6.如权利要求1所述的一次性吸收制品,其中所述吸收制品为开口式尿布。
7.如权利要求1所述的一次性吸收制品,其中所述吸收制品为短裤。
8.如权利要求1所述的一次性吸收制品,还包括
具有衣服表面和身体表面的吸收芯;
邻近所述吸收芯的所述身体表面设置的液体可透过的顶片;
邻近所述吸收芯的所述衣服表面设置的液体不可透过的底片;所述顶片和底片在沿着非线性切口线切割后一起形成所述前端边和所述后端边。
9.如权利要求8所述的一次性吸收制品,其中所述吸收制品为开口式尿布。
10.如权利要求8所述的一次性吸收制品,其中所述吸收制品为短裤。
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US11/039,950 US7361167B2 (en) | 2005-01-20 | 2005-01-20 | Absorbent article having complementary edges for an umbilical notch cut |
PCT/US2006/001650 WO2006078669A1 (en) | 2005-01-20 | 2006-01-17 | Absorbent article having an umbilical notch cut |
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WO2006078669A1 (en) | 2006-07-27 |
CA2594547A1 (en) | 2006-07-27 |
CA2717299C (en) | 2012-11-20 |
CA2717299A1 (en) | 2006-07-27 |
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