CN1051694C - 具有舒适的和快速收集顶片的吸收物品 - Google Patents
具有舒适的和快速收集顶片的吸收物品 Download PDFInfo
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Abstract
一种吸收物品,如妇女卫生巾,具有一改进了的顶片,这顶片提供了改进了的皮肤舒适感以及优良的流体输送特性。这样的一些吸收物品包括一主体部分,这主体部分最好包括一液体能透过的顶片、一液体不能透过的底片和一位于该顶片和该底片之间的吸收芯。该主体部分具有一些纵向边和一些横边。该顶片具有一中心区域和一对端部区域,这对端部区域从该中心区域横向向外延伸并与该中心区域连接。上述顶片包括一非织造的外层和一有孔的热塑性薄膜层。该非织造的外层具有一位于上述中心区域中的开口。所述有孔的热塑性薄膜层位于上述非织造的外层下面,这使得该有孔的热塑性薄膜层和该非织造的外层覆盖所述那些端部区域,而同时该有孔的热塑性薄膜层通过上述中心区域中的非织造的外层的开口而暴露。
Description
本发明涉及吸收物品,如妇女卫生巾、成人大小便失禁用衬垫及诸如此类的物品。再更具体地说,本发明涉及一种改进了的顶片,这顶片提供了优良的皮肤舒适感和流体收集能力。
当然,用于构成吸收体液(如月经、尿和粪便)的、各种各样的、及种种吸收物品是众所周知的。通常,吸收物品包括一个液体能透过的顶片,一个液体不能透过的底片、和一个位于所述顶片和底片之间的吸收芯。来自穿用者身体的流出物很快地穿过顶片渗入并容纳在吸收芯中。
顶片至少用于两个目的。第一,顶片提供了一些流体输送性能,这些性能包括快速收集穿过该顶片并进入吸收芯的流体,以及防止由该吸收芯吸收的流体“再弄湿”,也就是说,只要流体被所述吸收芯吸收,就不会穿过上述顶片漏回去,从而弄湿穿用者的皮肤。第二,所述顶片由于是顺从的、感觉柔软的、干燥的、而且对穿用者皮肤无刺激,从而提供了皮肤舒适感。
为了提供更好的流体输送特性和皮肤舒适感,已发展出有孔的热塑性薄膜作为用于顶片的材料。有孔的热塑性薄膜已被优选地用于顶片,因为它们对于液体来说是可透过的,而且也是不吸收的。于是,与人体接触的带孔的热塑性薄膜表面保持干燥,而且对穿用者来说,更加舒适。这样的有孔的热塑性薄膜在市场上是可以买到的,并且包括下述专利文献中所公开的薄膜,这些专利文献是:1975年12月30日授权给Thompson的、名为“具有锥形毛细管的吸收性组织”的、美国专利US3929135,1982年4月13日授权给Mullame和Smith的、名为“具有一抗污点的顶片的一次性吸收物品”的、美国专利US4324426,1982年8月3日授权给Radel和Thompson的、名为“呈现为类似纤维的性质的弹性塑性网状物”的、美国专利4342314,1984年7月31日授权给Ahr,Louis,Mullane.和ouellette的、名为“呈现可目视为无光泽的表面的和类似布的触感的、周肉眼可见到扩展了的三维塑性网状物”的美国专利US4463045,此处引用所有这些专利文献作为参考。
然而,尽管有孔的热塑性薄膜提供了优良的干燥性和“再弄湿”性质,还是希望在皮肤感觉和舒适方面作进一步改进。特别是,某些消费者已经抱怨有孔的热塑性薄膜可感到热、多汗或粘性。
因此,本发明的一个目的是提供一种具有改进了的皮肤舒适感的、并且具有优良的流体输送特性的顶片。
本发明的一个进一步的目的是提供一种具有这样一种改进了的顶片的吸收物品。
本发明提供了一种吸收物品,如妇女卫生巾、一次性尿布、大小便失禁用衬垫及诸如此类的东西,这种吸收物品具有一改进了的顶片,这顶片提供了改进了的皮肤舒适感以及优良的流体输送特性。这样的一些吸收物品包括一主体部分,这主体部分最好包括一液体能透过的顶片、一液体不能透过的底片和一置于该顶片与底片之间的吸收芯。主体部分具有一些纵向边和横边。顶片具有一中心区域和一对端部区域,这对端部区域从所述中心区域横向向外延伸,并与该中心区域邻接。顶片包括一非织造的外层和一有孔的热塑性薄膜层。该非织造的外层具有一位于上述中心区域中的开口。所述有孔的热塑性薄膜层置于上述非织造的外层下面,这使得所述有孔的热塑性薄膜层和所述的非织造的外层复盖了上述那些端部区域,而该有孔的热塑性薄膜层通过在上述中心区域中的非织造的外层的开口而暴露。
图1是一幅具有一剖开部分以展示下面的结构的本发明的一个短衬裤衬垫(Pantiliner)实施例的透视图。
图2是一幅图1所示的本发明的短衬裤衬垫实施例的顶部平面图,顶片面向观察者。
图3是一幅图1所示的本发明的短衬裤衬垫实施例的底部平面图,底片面向观察者。
图4是一幅沿图1的4-4线所取的、放大了的、侧面剖面图。
图5是一幅本发明的一可供选择的短衬裤衬垫的实施例的顶部平面图。
图6是一幅沿图5的6-6线所取的、放大了的侧面剖面图。
图7是一幅本发明的一个进一步可供选择的妇女卫生巾的平面图。
图8是一幅沿图7的8-8线所取的、放大了的、侧面剖面图。
图9是一幅本发明的一个还可供进一步选择的妇女卫生巾的实施例的、放大了的、侧面剖面图。
图10又是另外包括一对护翼的本发明的、另一个可供选择的短衬裤实施例。
图11是一幅沿图10的11-11线所取的、放大了的、侧面剖面图。
如此处所用的那样,术语“吸收物品”是指吸收和容纳身体流出物的部件,而更具体地说,是指这样一些部件,这些部件靠着或邻近穿用者的身体放置,以吸收和容纳各种从该身体所排出的流出物。术语“一次性”用在此处,以说明那些并不打算清洗或者用其它方法储存或再用作吸收物品的吸收物品(即,打算在使用一次后就扔掉它们,而且最好回收它们、使它们成为混合肥料、或用其它方法以能与环境保护协调的方式处置它们)。本发明吸收物品的一个最佳实施例是一次性吸收物品,图1中所示的短衬裤衬垫20。如此处所用的那样,术语“短衬裤衬垫”和“妇女卫生巾”是指这样一些吸收物品,这些吸收物品一般由女性在邻近生殖器区域所穿用,打算使这吸收物品吸收和容纳各种由身体所排放的流出物(例如,血、月经和尿)。然而,本发明并不限于附图中所示的吸收物品的特定类型和结构。应该这样理解,即本发明还能用于其它吸收物品,如大小便失禁用衬垫、大小便失禁用衬衣、尿布及诸如此类的东西。
如图1至4所示的那样,短衬裤衬垫20包括一由主体部分22所代表的吸收装置。主体部分22具有纵向边24和横边26。如此处所用的那样,术语“纵向的”是指在短衬裤衬垫20的平面中的一条线、轴线或方向,这条线、轴线或方向一般与一垂直平面成一直线(例如,近似平行),这垂直平面当该短衬裤衬垫20被穿用时把一站立的穿用者的身体平分为左右两半。如此处所用的那样,术语“横的”是指一条处于短衬裤衬垫20的平面内的一条线、轴线或方向,这条线、轴线或方向一般垂直于纵向。
主体部分22包括一顶片30、一底片50和一吸收芯60。主体部分22最好还包括一非织造的辅助层40。
顶片30是液体能透过的,而且当使用短衬裤衬垫20时,顶片30是顺从的、感觉柔软的并且对使用者的皮肤无刺激性。顶片30具有一中心区域32和一对端部区域34。端部区域34从所述中心区域32横向伸展,并与该中心区域32邻接。
顶片30包括一非织造的外层70和一有孔的热塑性薄膜层80。非织造的外层70是能透过液体的,而且具有一置于中心区域32中的开口72。开口72配置在非织造的外层70中,作为用于要被直接沉积在有孔的热塑性薄膜层80上的身体流出物的通路,以发挥它的优良的流体输送性能,这使得流体会快速地进入上述吸收芯。在一个最佳实施例中,非织造的外层70包括两个条74、76。非织造的外层70的两个条74、76在有孔的热塑性薄膜层80顶部上分开一定间隔,这使得在两个条74、76之间的隔开的区域构成开口72。在这个特殊的实施例中,每个条74、76具有近似平行的内边74a、76a,这近似平行的内边74a、76a在横边26与另一横边26之间分隔开来,因此,开口72具有一沿纵向伸长的基本是矩形的形状。
只要在中心区域32的中心(纵向的)中的开口72足够大,允许打算被上述芯吸收的身体的流体的流动,那么,中心区域32的这纵向端部就可用非织造的外层70或一分离层(未示出)复盖。
非织造的外层70横向延伸进围绕主体部分22的周边28的接缝中。用一固定装置,该接缝将非织造的外层70、有孔的热塑性薄膜层80及可选择的非织造的辅助层40连接在一起。优选的短衬裤衬垫20具有凹的纵向边24、24′,以适合穿用者的短用者的短衬裤的外形。在这个实施例中,非织造的外层70在最窄的部分,在两个端部区域中,具有至少约1.5mm的宽度,而在最宽的部分约至少7至10mm。上述开口的宽度将取决于物品的打算的用途。对于低流量的短衬裤衬垫来说,上述开口的宽度大于约5mm,最好约为10mm至30mm,最好大于约20mm。对于大流量的妇女卫生巾来说,上述开口的宽度大于约10mm,最好约为20至60mm,最好大于约40mm。开口72与上述主体部分的整个横向宽度之比值可根据非织造的外层70的宽度而变化。这个比值从约4∶1到约1∶4较好,从约2∶1到约1∶2更好。已发现从产品性能、工艺和美学的观点来看,对于开口72的这样的一些形状和面积是需要的。然而,在设计开口72时,另外的一些形状和各种面积是可能的。例如,每个条74、76可具有不平行的内边,或可在纵向边24、24′的每一个或两者处相遇,或可从纵向边24、24′的每一个或两者处向内相遇,以确定一圆形开口。只要开口72足够大,允许沉积在上述顶片上的绝大多数流体在上述开口内通过通道,那么,所述开口的特定布置及构形并不是关键的。
非织造的外层70最好以至少是与有孔的热塑性薄膜层80部分接触的关系被固定。可通过各层的熔合连接、粘性连接,或可通过任何其它的固定方式,保持非织造的外层70与有孔的热塑性薄膜层80接触。非织造的外层70与有孔的热塑性薄膜层80的接合防止了该非织造的外层被撕裂或防止了在在边缘74a、76a处该非织造的外层卷回到它自己上面从而带来不舒适的感觉。熔合连接包括热连接、超声连接及诸如此类的连接。热连接是用于使非织造的外层70和有孔的热塑性薄膜层80固定接触的最好方法。这两层可连续地、部分地或断续地连接。在一个最佳实施例中,非织造的外层70和有孔的热塑性薄膜层80用热连接物78沿着每条带74、76的内边74a、76a,在许多位置被进行点连接。热连接物78提供了使表面凸起的印记图形,这使表面凸起的印记图形还可在它的图形设计中传递美学效果,如一朵花、一片叶子等等。
上述非织造的外层在顶片的端部区域中提供了柔软性,这是为了清除对于使用者的任何粘性、多汗的感觉,以及为了作为一个能有效地处理沉积在所述端部区域上的任何液体的一个部件。非织造的外层70包括一具有优良的柔软顺从性和流体收集性能的非织造的网状物。用作顶片的非织造的外层70的合适的材料包括聚乙烯(熔点温度相对较低)、聚丙烯和/或聚酯的混合物,这在本专业中称为“双组分网状物”。邻近上述非织造的网状物的一个表面的一层主要包括聚乙烯和聚丙烯的双组分纤维(最好是50/50的重量比)。邻近另一表面的一层主要包括聚乙烯和聚酯的双组分纤维(最好还是50/50的重量比)。包含含有聚乙烯的纤维的非织造网状物特别适于用于本发明,因为可容易地熔合连接它们。通过熔化纤维中的聚乙烯,来完成上述非织造的网状物和有孔的热塑性薄膜层之间的熔合连接。上述这些层两者都含有纤维中的聚乙烯,这使得可把每一层都安置得面向带孔的热塑性薄膜层,用于熔合连接,最好把含有聚乙烯和聚酯的上述双组分纤维的非织造网状物的层设置得面向有孔的热塑性薄膜层80。在这个最佳实施例中,所述包含聚乙烯和聚丙烯的双组分纤维的非织造的网状物的层,被设置得面向穿用者,并提供了优良的柔软的顺从性和柔软的感觉,这是因为聚丙烯的特性。进一步,含有聚乙烯和聚酯的双组分纤维的上述非织造的网状物的层起到缓冲的作用。典型的可用作非织造的外层70的非织造的网状物,可从Fukumura Seishi Kabushiki Kaisha,Gihu,Japan得到,牌号为S-2146。所述非织造的外层也可具有一平的表面或表面凸起的图形,就如这物品的制造者所设计的那样。
有孔的热塑性薄膜层80是可透过液体的,并位于非织造的外层70的下面,且更靠近吸收芯60。有孔的热塑性薄膜层80和所述非织造的外层两者都复盖在端部区域34之上。进一步,有孔的热塑性薄膜层80,从横边26到另一横边26,在中心区域32中通过非织造的外层70的矩形开口72而暴露。尽管有孔的热塑性薄膜层80不需要延伸到主体部分的横边或纵向边,但在如图1和图2所示的一个最佳实施例中,有孔的热塑性薄膜80横向和纵向向外延伸,并可构成纵向边24、24′和横边26、26′或周边28的一部分。
最好把成型薄膜用于上述有孔的热塑性薄膜层,因为它们对于液体来说是可透过的而且还是不吸收的。这样,与身体接触的成型薄膜的表面保持干燥,而且对于穿用者更舒适。用于所述有孔的热塑性薄膜的合适的成型薄膜在下述这些专利文献中有说明,这些专利文献是1975年12月30日授权给Thompson的名为“具有锥形毛细管的吸收组织”的美国专利US3929135,1982年4月13日授权给Mullane和Smith的、名为“具有一抗污点的顶片的一次性吸收物品”的美国专利US4324426,1982年8月3日授权给Radel和Thompson的、名为“呈现类似纤维性质的弹性塑性网状物”的美国专利US4312314,以及1984年7月31日授权给Ahr,Louis,Mullane,和Ouellette的、名为“呈现可目视为无光泽的表面的和类似布的触感的、用肉眼可见到扩展了的三维塑性网状物”的美国专利US4463045。此处引入这些专利的每一篇作为参考。已被发现为令人满意的一种成型薄膜,是由印第安娜洲的Tcrre Haute的Tredegar工业股份有跟公司制造的,牌号为X3265,而市售时叫作“Dri-Weavc”,这“Dri-Weave”是在由俄亥俄洲的Procter &Gamble公司生产的妇女卫生巾上。
此外,在本发明的一个最佳实施例中,有孔的热塑性薄膜层80的外表面(面向身体的表面)80a的至少一部分用一种表面活性剂处理。最好,至少在有孔的热塑性薄膜层80的外表面80a的中心区域32中,均匀且整个地分布着该表面活性剂。这可通过本领域普通技术人员所熟知的任何普通技术来完成。例如,可通过喷涂、浸染或利用转移滚,来把表面活性剂施加到有孔的热塑性薄膜层80上。用表面活性剂处理有孔的热塑性薄膜层80的外表面80a,使得有孔的热塑性薄膜层80的这个表面变得更加亲水。这导致液体穿过有孔的热塑性薄膜层80比如果所述表面未经如此处理时更快。这减少了月经流出有孔的热塑性薄膜层80而不是被吸收芯60所吸收的可能性。
在一特别优选的实施例中,一另外的非织造的辅助层40位于吸收芯60和有孔的热塑性薄膜层80之间。非织造的辅助层40防止了“堆成堆”,即短衬裤衬垫本身的扭曲,或在裆部部分中的所述吸收芯的扭曲,这些扭曲可泄漏身体流出物,而且非织造的辅助层40在上述主体部分的周边28处提供了附加的柔软性。有孔的热塑性薄膜层80的内表面80b最好与非织造的辅助层40以接触的关系固定。这种接触关系导致了液体穿过有孔的热塑性薄膜层80比如果有孔的热塑性薄膜层80不与非织造的辅助层40接触时更快。例如,可通过如上所述的那样的热封接,或可通过给有孔的热塑性薄膜层80的内表面80b施加粘性物质,来保持有孔的热塑性薄膜层80与非织造的辅助层40接触。采用与在非织造的外层70和有孔的热塑性薄膜层80之间同样类型的固定方式,来施加所述的接触关系较好,同样的点连接和热封接更好。
非织造的辅助层40是可透过液体的,并且位于有孔的热塑性薄膜层80和吸收芯60之间。在一特殊的实施例中,非织造的辅助层40横向和纵向向外延伸,并构成周边28的纵向边24、24′及横边26、26、的一部分。非织造的辅助层40的材料可以与非织造的外层70相同。包含聚乙烯和聚酯纤维的混合物的非织造的网状物的表面,最好设置得面向有孔的热塑性薄膜层80,用于通过熔合连接以接触的关系固定。在这个特殊的实施例中,面向吸收芯60的非织造的辅助层40的表面40b,以接触的关系与吸收芯60固定。可通过与上述用于保持在有孔的热塑性薄膜层80和非织造的辅助层40之间的接触关系相同的固定方式,来获得所述的接触关系。最好通过把粘性物质施加到在非织造的辅助层40和吸收芯60之间的面来获得所述的接触关系。用于这个目的的合适的粘性物质在美国专利US4917697中有说明,此处引入这篇专利作参考。可通过与上述用于把表面活性剂施加到有孔的热塑性薄膜层80的外表面80a相同的方法,来施加所述粘性物质。可通过一均匀连续的粘性物质层,一具有图形的粘性物质层,或者粘性物质的一些分离的线条、螺旋线或斑点的阵列,可把吸收芯60固定到非织造的辅助层40上。一种典型的粘性物质是由威斯康星洲的Wauwatosa的FindleyAdhesive公司制造的,名称为H2128。在有孔的热塑性薄膜层80和非织造的辅助层40之间的固定方式,最好包括粘性物质的丝的某种敝开图形网络,就如美国专利US4573986中所说明的那样,这篇美国专利名为“一次性的容纳废物的服装”,1986年3月4日授权给Minetola和Tucker,在此引入这篇美国专利作为参考。一种敝开图形的丝的网络的典型固定方式,包括弯曲成一螺旋线图形的粘性物质丝的几条线,就如下述这些美国专利中所示的装置和方法所显示的那样,这些美国专利是1975年10月7日授权给Sprague,Jr。的美国专利US3911173,1978年11月22日授权给Ziecker等人的美国专利US4785996,以及1989年6月27日授权给Werenicz的美国专利4842666。在此引入这些专利的每一篇作为参考。
吸收芯60位于顶片30和底片50之间。在一特殊的实施例中,吸收芯60纵向和横向延伸,这使得吸收芯60的边构成主体部分22的纵向边24、24′和横边26、26′的一部分。吸收芯60为吸收月经流体提供了手段。吸收芯60并不需要具有比预计的要吸收的月经流体的总量大得多的吸收容量。吸收芯一般是可压缩的、舒适的而且对使用者皮肤无刺激性。它可包括在本领域中所用的用于这样的的任何材料。一些例子包括一般叫作气流铺模的(airfelt)、被弄成粉末的木浆,蠕变了的纤维素填料,吸收泡沫,吸收海绵,合成人造纤维,聚合纤维,形成水凝胶的聚合物吸收凝胶化材料,泥炭沼,或任何等效的材料,或一些材料的组合。一种典型的吸收芯是一种棉纸层,如由Ft.Howard制造的并被指定为882级的吸收芯。所述吸收芯可还具有一层吸收凝胶化材料,如颗粒形式的,这层吸收凝胶化材料置于两个气流铺置的棉纸层(或“上”和“下”棉纸层)之间。第一和第二棉纸层提供了吸收凝胶化材料的容器、贯穿所述吸收芯的被吸收了的流出物的改进了的横向毛细管现象(Wicking)及吸收程度。用作本发明的吸收芯的典型的吸收结构在下述专利文献中有说明,这些专利文献是1990年8月21日授权给Osborn的名为“薄的、柔软的妇女卫生巾”的美国专利US4950264;1986年9月9日授权给Weisman等人的、名为“高密度吸收结构的美国专利US4610678;1989年5月30日授权给Alemany等人的、名为“具有较低密度和较低织物单位重量收集区域的高密度吸收部件”的美国专利US4834735;及1986年10月22日出版的、Procter & Gamble公司的、在Duenk等人名下的、欧洲专利申请EP0198683。此处引用这些专利的每一篇作为参考。
上述的吸收凝胶化材料是这样一些材料,这些材料在与流体(即液体),如水或体液接触时,吸入这样的流体,从而形成水凝胶。以这种方式,可通过这些吸收凝胶化材料,获得并保持排放进吸收芯60中的流体,由此,给此处的物品提供了增强了的吸收容量和/或改进了的流体保持性能。在吸收芯60中采用的优选的吸收凝胶化材料,一般将包含基本上不溶于水的、稍微交联的、最好是中性化了的、形成水凝胶的聚合物的材料的粒子。术语“粒子”如此处所用的那样,可指任何形式的粒子,如颗粒形式的、片状粉末形式的、或纤维形式的。吸收芯60的特性(包括但不限于此处所用的聚合物材料的优选的类型,以及可用于制备这些聚合物粒子的那些方法的类型),在授权给Osborn的美国专利US5009653中有更详细地说明,在此整个引入这篇专利作为参考。
底片50是不能透过液体的,而且最好用塑料薄膜制作,尽管也可用其它柔软的液体不能透过的材料。如此处所用的那样,术语“柔软的”是指顺从的并且将易于符合人体的通常的形状和轮廓。进一步,底片50可允许蒸汽从吸收芯60逸出(即是透气的),而同时还防止了液体流出物穿过那里通过。底片50的尺寸一般由吸收芯60的尺寸确定。在一个最佳实施例中,底片50横向和纵向延伸,以构成主体部分22的周边28的纵向边24、24′及横边26、26′的一部分。此处可用本领域中用于这样的目的的任何材料。用作上述底片的一种典型的薄膜是由印第安娜洲的Terre Haute的Tredeger工业股份有限公司制造的,牌号为X8297。最好使底片50表面凸起和/或形成无光的毛面,以提供一种更类似于布的外观。所述底片最好是一种具有从约0.012mm(0.5mil)到约0.051mm(2.0mils)的厚度的热塑性薄膜。
最好通过例如本领域中所熟知的固定方式(未示出),来把底片50固定到吸收芯60上。适合的固定方式是与上面所公开的关于把非织造的辅助层40固定到吸收芯60上同样的方式。
上述的主体部分22可相对来说较厚或相对来说较窄或薄。一窄的主体部分22可以是有效的,因为整个构形和短衬裤衬垫(或妇女卫生巾)的用途导致了把主体部分22保持在紧贴近身体处。主体部分22的这种贴近把它准确地置于它应处于的位置:极靠近阴道开口处的身体位置。然后,主体部分22在大量月经流体(月经)有机会沿主体部分22的各边流动之前,吸收这大量的月经流体(月经)。一种薄的主体部分还是需要的,因为一般它对使用者来说是舒适的。
主体部分22最好进一步包括一粘性连接装置,该装置用于把主体部分22固定在一短衬裤的裆部。在纵向邻近中央区域,底片50通过外表面50a最好涂上一种粘性物质90。通过把该粘性物质附着在衬衣上来保持短衬裤衬垫就位。
本发明的所用的系固物并不限于粘性连接装置。本领域中所用的任何类型的系固物都可用于这样的目的。例如,可通过美国专利US4946527中所述的系固物,把短衬裤衬垫20固定到穿用者的衬衣上,这篇美国专利名为“压力敏感的粘性系固物和它的制造方法”,在此引入这篇美国专利作为参考。然而,为简单起见,将用粘性连接装置这一术语来描述上述系固物。一种合适的粘性物质是由明尼苏达洲的St.Paul的H.B.Fuller公司制造的,牌号为HL-2254。
粘性固定装置分别由可去掉的防粘衬复盖,最好由标号为92的一中心垫防粘衬复盖。应该用一防粘衬复盖上述粘性物质,以保持该粘性物质在使用前不粘到无关的表面上。一种适合的防粘衬在美国专利US4917697中有说明,这篇美国专利为“具有护翼物和应力释放装置的妇女卫生巾”,于1990年4月17日授权给Osborn,III,等人,此处引入这篇美国专利作为参考。另一种典型的防粘衬是由Akrosil公司制造的防粘纸,并被称为BL25MGA,Silox4R/0。
在本发明的一个可供选择的实施例中,非织造的外层70和非织造的辅助层40可由同一材料片制作。把非织造的网状物置于有孔的热塑性薄膜层80的下面,以构成非织造的辅助层40。然后,该非织造的网状物围绕有孔的热塑性薄膜层80的纵向边C形折叠,以便覆盖有孔的热塑性薄膜层80的端部区域,并构成非织造的外层70。在沿着条的内边的许多位置处78,可对上述部分(即周边28)作热连接。例如,通过粘到吸收芯60上来连接非织造的辅助层40。如上所述组装成的部件的所述周边,然后沿着外边缘被切割,以形成短衬裤衬垫,由此提供了包含它的一些部分的周边28,它的这些部分由顶片层30、非织造的辅助层40、吸收芯60及底片50组成,就如图4所示的那样。
进一步,周边28的纵向边24和横向边26用所有软的材料构成,如非织造的外层70,非织造的辅助层40、吸收芯60,这使得上述周边相对来说较厚,以致该周边对穿用者的皮肤来说更舒适和柔软。美国专利US4752349中公开了类似的软边。
图5至图6显示了本发明的另一个可供选择的实施例,其中吸收芯160和有孔的热塑性薄膜层180至少是横向共同延伸的。该吸收芯和有孔的热塑性薄膜层的宽度,可按不同的产品用途和设计的需要而选择。例如,在涉及大流量的卫生巾中,在一平面图中,吸收芯160可比有孔的热塑性薄膜层180稍微大一些。这种短衬裤衬垫120也包含由主体部分122代表的一吸收装置,这吸收装置除了下述部分外,基本上类似于上述短衬裤衬垫20 。在这个特殊的实施例中,非织造的外层170、任何可选择的非织造的辅助层140及底片150向外延伸,并连接在一起,以在上述主体部分的周边128处,通过熔合连接、粘性物质或任何其它的固定方式来形成接合处127。由此,吸收芯160的周边166(图5中虚线所示)并不位于周边接合处127中。
图7至图8示出了本发明的妇女卫生巾220的一个进一步可供选择的实施例,其中非织造的外层270和非织造的辅助层240由一单块非织造的网状物构成,这使得该非织造的网状物在端部区域234中,围绕有孔的热塑性薄膜层280的纵向端284、284′C型折叠。在这个特殊的实施例中,在有孔的热塑性薄膜层280的纵向边284、284′和所述非织造的网状物的折叠线242之间,提供有一段距离。整体的非织造的外层270、非织造的辅助层240和底片250都向外延伸,并在周边228构成一接合处227。
吸收芯260以接触的关系固定在非织造的辅助层240和底片250之间。在这个特殊的实施例中,吸收芯260和有孔的热塑性薄膜层280至少是横向共同延伸的。吸收芯260最好相对来说较厚,以容纳大量身体流出物。不是必须的,可修整掉主体部分222的周边228的一部分。
图9示出了本发明的一个进一步的实施例,其中的妇女卫生巾320类似于妇女卫生巾220,除了有孔的热塑性薄膜层380的纵向边384延伸到上述非织造的网状物的折叠线342。
上面所公开的短衬裤衬垫或妇女卫生巾可另外包含一对护翼。每一护翼在连接线处与主体部分连接,并从该主体部分的纵向边横向向外延伸。这些护翼可包含单独的材料块,这材料块与上述主体部分连接。在一些优选的实施例中,如那些在授权给Osborn的美国专利US4917697中所示的实施例中,上述那些护翼可与所述主体部分的至少一个部件是一体的。
图10至图11显示了具有至少一对护翼的短衬裤衬垫的实施例,每一护翼与吸收芯的侧边相邻,并从该吸收芯的侧边横向延伸。把这些护翼成形为折叠到穿用者的短衬裤的边上。这些护翼用于几个目的。首先,这些护翼通过在妇女卫生巾的每一边构成一双重壁垒,来防止月经流体弄脏穿用者的身体和短衬裤,特别是当用液体不能透过的材料构成时尤其是这样。其次,最好给这些护翼在它们的服装表面配备连接装置,这使得这些片状物在短衬裤下面可折叠回来,并连接到面向短衬裤那侧的服装上。以这种方式,这些护翼用来保持把妇女卫生巾适当地定位在所述短衬裤上。第三,这些护翼可帮助减少妇女卫生巾的堆成堆,就如同在上面参考的授权给Osborn的专利中那样使用这个术语。这些护翼可由各种材料构成,这些材料包括类似于顶片、底片、组织的那些材料或这些材料的组合。这些护翼可以是连接到所述卫生巾的主体上的单独的一(些)部件,或可由顶片和底片的延伸组成(即,是一体的)。具有适当的并适合用于本发明的吸收物品的护翼的、大量的妇女卫生巾,在下述这些美国专利中公开了,这些美国专利是1987年8月18日授权给Van Tilburg的、名为“具有一些护翼的成形的妇女卫生巾”的、美国专利US4687478;1986年5月20日授权给Van Tilburg的、名为“妇女卫生巾”的、美国专利US4589876;以及1986年8月26日授权给Mattingly的、名为“妇女卫生巾的连接装置”的、美国专利US4608047。此处引入这些专利的每一个作为参考。
如图10至图11所示,护翼500每一个沿一条接合处的线与主体部分422相联系。该接合处一般是一朝向纵向的(或“纵向的”)接合处,如接合处的一些线422a。如此处所用的那样,术语“接合处”(或“接合处的线”)是指这样一些区域,在这些区域,上述那些护翼从主体部分422延伸或连接到主体部分422上。这些区域可以是任何弯曲的或直的线,但它们并不限于一些线。于是,这些区域可包含折边,条状物、断续的线及诸如此类的东西。在图10所说明的实施例中,连接处的线422a相对来说是一条直线。
此外,妇女卫生巾420的吸收材料可延伸进上述那些护翼,以形成一片状吸收芯,就如美国专利US4917697中所更详细地说明的那样,或那些护翼500可以是连接到上述主体部分上的一单独的部件。护翼500还可包含构成主体部分422的那些材料的至少一种(即非织造的外层470、有孔的热塑性薄膜层、480底片450、上述非织造的辅助层、或任何另外的材料)。在一最佳实施例中,非织造的外层470、有孔的热塑性薄膜层480及底片450向外延伸,并通过熔合连接、粘性物质,或通过任何其它连接方式,在上述主体部分的周边428处构成接合处427。非织造的外层470的每个条474、476和底片450横向延伸,并形成一对护翼500。吸收芯460和有孔的热塑性薄膜层480至少横向共同延伸。如图10中所示的那样,最好是这样,即吸收芯460的侧边和有孔的热塑性薄膜层480的纵向边宽度不一样。
尽管已显示并说明了本发明的一些特殊的实施例,对本领域普通技术人员显而易见的是:可作各种其它变化和改进,而不会背离本发明的精神和范围。因此,打算在所附的权利要求书中覆盖所有这样的、在本发明范围内的变化和改进。
Claims (13)
1.一种吸收物品包括:
一具有纵向边和横向边的主体部分,
所述主体部分包括:
一具有一中心区域和一些端部区域的能透过液体的顶片,所述那些端部区域从所述中心区域横向延伸,并与所述中心区域连接,所述顶片包括:a)一具有一位于所述中心区域中的开口的、非织造的外层,以及b)一具有一些纵向边的、有孔的热塑性薄膜层,所述有孔的热塑性薄膜层位于所述非织造的外层的下面,这使得所述有孔的热塑性薄膜层和所述非织造的外层复盖所述那些端部区域,并且所述有孔的热塑性薄膜层通过所述中心区域中所述非织造的外层的所述开口而暴露;
一液体不能透过的底片;以及
一具有一些侧边的吸收芯,所述吸收芯位于所述顶片和所述底片之间。
2.如权利要求1所述的吸收物品,其特征是,所述非织造的外层包括在所述有孔的热塑性薄膜层顶部上分隔开的两个条,这使得在所述的两个条之间的被分隔开的区域构成所述开口。
3.如权利要求1或2所述的吸收物品,另外包括位于所述顶片和所述吸收芯之间的一非织造的辅助层。
4.如权利要求3所述的吸收物品,其特征是,所述非织造的辅助层和所述非织造的外层由单独一块材料构成,这单独一块材料在每一所述端部区域中围绕所述有孔的热塑性薄膜层的所述那些纵向边C型折叠。
5.如权利要求1或2所述的吸收物品,其特征是,所述吸收芯位于所述中心区域和所述那些端部区域的下面。
6.如权利要求1或2所述的吸收物品,其特征是,所述吸收芯的所述那些侧边构成所述主体部分的那些纵向边。
7.如权利要求1所述的吸收物品,其特征是,所述有孔的热塑性薄膜层和所述吸收芯横向共同延伸。
8.如权利要求1或2所述的吸收物品,另外包括一对护翼,每一片状物在一接合处与所述主体部分相联系,并从所述主体部分横向向外延伸。
9.如权利要求8所述的吸收物品,其特征是,每一所述护翼由所述顶片和所述底片的一部分组成。
10.如权利要求9所述的吸收物品,其特征是,每一所述护翼由所述顶片的非织造的外层和所述底片组成。
11.如权利要求10所述的吸收物品,其特征是,所述吸收芯和所述有孔的热塑性薄膜层基本上是横向共同延伸的,并位于所述中心区域和所述那些端部区域的下面。
12.如权利要求1所述的吸收物品,其特征是,所述物品是一短衬裤衬垫。
13.如权利要求1所述的吸收物品,其特征是,所述物品是一妇女卫生巾。
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US5023124A (en) * | 1989-08-21 | 1991-06-11 | Kao Corporation | Absorbent article |
CA2024558C (en) * | 1990-07-19 | 2002-04-02 | Paul John Serbiak | Thin sanitary napkin having a central absorbent zone and a method of forming the napkin |
CA2053930C (en) * | 1991-07-17 | 1997-01-07 | Robert Emmet Kirby | Bodyside cover for an absorbent article |
CA2054029C (en) * | 1991-07-17 | 1998-05-19 | Louise Cynthia Ellis Coe | Absorbent article exhibiting improved fluid management |
BR9207014A (pt) * | 1991-11-11 | 1995-12-12 | Procter & Gamble | Artigo absorvente |
US5330598A (en) * | 1992-08-14 | 1994-07-19 | Paragon Trade Brands, Inc. | Method of manufacturing an absorbent garment with target region and end caps |
-
1992
- 1992-11-06 BR BR9207014A patent/BR9207014A/pt not_active IP Right Cessation
- 1992-11-06 AT AT92924411T patent/ATE137107T1/de not_active IP Right Cessation
- 1992-11-06 SG SG1996003946A patent/SG54199A1/en unknown
- 1992-11-06 DE DE69210257T patent/DE69210257T2/de not_active Revoked
- 1992-11-06 KR KR1019940701567A patent/KR100245351B1/ko not_active IP Right Cessation
- 1992-11-06 DE DE19929219163 patent/DE9219163U1/de not_active Expired - Lifetime
- 1992-11-06 DK DK92924411T patent/DK0612233T3/da active
- 1992-11-06 AU AU30730/92A patent/AU658251B2/en not_active Expired
- 1992-11-06 ES ES92924411T patent/ES2086778T3/es not_active Expired - Lifetime
- 1992-11-06 WO PCT/US1992/009718 patent/WO1993009744A1/en not_active Application Discontinuation
- 1992-11-06 EP EP92924411A patent/EP0612233B1/en not_active Revoked
- 1992-11-06 CA CA002122343A patent/CA2122343C/en not_active Expired - Lifetime
- 1992-11-06 JP JP29742192A patent/JP3083662B2/ja not_active Expired - Lifetime
- 1992-11-10 NZ NZ245064A patent/NZ245064A/en not_active IP Right Cessation
- 1992-11-11 MX MX9206489A patent/MX9206489A/es unknown
- 1992-11-11 CN CN92114630A patent/CN1051694C/zh not_active Expired - Lifetime
- 1992-11-11 MY MYPI92002050A patent/MY109178A/en unknown
- 1992-11-11 PT PT863692U patent/PT8636T/pt active IP Right Grant
-
1994
- 1994-05-04 NO NO941639A patent/NO303318B1/no unknown
- 1994-05-10 FI FI942162A patent/FI942162A0/fi not_active Application Discontinuation
- 1994-10-05 SA SA94150220A patent/SA94150220A/ar unknown
-
1995
- 1995-07-27 PT PT101745A patent/PT101745B/pt not_active IP Right Cessation
-
1996
- 1996-04-25 GR GR960401072T patent/GR3019771T3/el unknown
- 1996-11-08 US US08/744,892 patent/US6117523A/en not_active Expired - Lifetime
-
1998
- 1998-06-15 HK HK98105313A patent/HK1006142A1/xx not_active IP Right Cessation
-
2000
- 2000-08-22 US US09/643,338 patent/US6461339B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ATE137107T1 (de) | 1996-05-15 |
PT101745A (pt) | 1996-01-31 |
CN1077109A (zh) | 1993-10-13 |
WO1993009744A1 (en) | 1993-05-27 |
EP0612233B1 (en) | 1996-04-24 |
DK0612233T3 (da) | 1996-05-13 |
DE69210257D1 (de) | 1996-05-30 |
DE69210257T2 (de) | 1996-11-21 |
DE9219163U1 (de) | 1998-08-27 |
MX9206489A (es) | 1994-05-31 |
GR3019771T3 (en) | 1996-07-31 |
FI942162A (fi) | 1994-05-10 |
US6461339B1 (en) | 2002-10-08 |
NO303318B1 (no) | 1998-06-29 |
ES2086778T3 (es) | 1996-07-01 |
NO941639D0 (no) | 1994-05-04 |
JP3083662B2 (ja) | 2000-09-04 |
CA2122343C (en) | 1999-03-23 |
PT101745B (pt) | 1997-04-30 |
NZ245064A (en) | 1995-12-21 |
AU658251B2 (en) | 1995-04-06 |
US6117523A (en) | 2000-09-12 |
EP0612233A1 (en) | 1994-08-31 |
NO941639L (no) | 1994-05-04 |
HK1006142A1 (en) | 1999-02-12 |
BR9207014A (pt) | 1995-12-12 |
JPH06142135A (ja) | 1994-05-24 |
KR100245351B1 (ko) | 2000-02-15 |
MY109178A (en) | 1996-12-31 |
SA94150220A (ar) | 2005-12-03 |
FI942162A0 (fi) | 1994-05-10 |
CA2122343A1 (en) | 1993-05-27 |
PT8636T (pt) | 1993-08-31 |
SG54199A1 (en) | 1998-11-16 |
AU3073092A (en) | 1993-06-15 |
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Legal Events
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
OR01 | Other related matters | ||
C17 | Cessation of patent right | ||
CX01 | Expiry of patent term |
Expiration termination date: 20121111 Granted publication date: 20000426 |