CN2209514Y - 一次性使用的吸湿件 - Google Patents

一次性使用的吸湿件 Download PDF

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CN2209514Y
CN2209514Y CN94216382U CN94216382U CN2209514Y CN 2209514 Y CN2209514 Y CN 2209514Y CN 94216382 U CN94216382 U CN 94216382U CN 94216382 U CN94216382 U CN 94216382U CN 2209514 Y CN2209514 Y CN 2209514Y
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北冈英昭
山崎勇
末兼真
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Abstract

一次性使用的吸湿件,例如一次性尿布包括初级 可拉伸的侧叠边和起液体阻挡器作用的次级可拉伸 的侧叠边,每一个次级侧叠边的近身边缘和远端边缘 构成了顶片的一个暴露区,该暴露区是沿着吸湿芯子 的横向相对侧边缘表面的每一个表面的,因此大量的 液体排泄物可被吸湿芯子通过暴露区吸收。

Description

本发明涉及一次性使用的吸湿件,特别是如尿布或训练短裤一类,它们具有双重罗口形式的可拉伸的侧叠边,从而在穿着者的相应大腿周围形成双重的密封。
日本公开公报专利申请NO.1987-250201公布了一种尿布可作为上述有双重罗口的一次性使用的吸湿件的一个例子。这种尿布包括从吸湿芯子横向相对边缘向外延伸的初级可拉伸的侧叠边(填料罗口)和位于相应的初级可拉伸的侧叠边顶部表面上的次级可拉伸的侧叠边(阻挡层罗口),每一个叠边都有靠近身体的边缘和远离身体的边缘,这样可消除有关液体排泄物可能会横向流动和通过放置在所述芯子顶面上的顶片顶部表面泄漏出去的担心。根据所公布的内容看,所述次级可拉伸的侧叠边可以由液体可透过的布料或者液体不可透过的布料做成。从这个公布的内容来看,所述泄漏必需避免的排泄物可认为是半流体或半固体的排泄物。
在这种尿布中,相应的次级可拉伸的侧叠边的近身边缘粘接在相应的初级可拉伸的侧叠边的顶部表面上,近身边缘是处在吸湿芯子的相应侧边缘和相应的初级可拉伸的侧叠边的外部可拉伸密封区之间。采用这种布局方式时,可能从次级可拉伸的侧叠边的远端边缘上面通过的大量液体排泄物将被阻挡在次级可拉伸的侧叠边和相应的初级可拉伸的侧叠边的密封区之间,最后有可能从所述的密封区向外泄漏。特别是当次级可拉伸的侧叠边是由液体不可透过的布料做成时,这种担心更加严重,即使是用液体可透过的布料制成的次级可拉伸的侧叠边也不可能吸收被阻挡的液体排泄物,从而防止这些排泄物从初级可拉伸的侧叠边的所述密封区向外泄漏,因为通常找不到一种对液体排泄物吸收性能足够强的具有液体可透过的布料来做次级可拉伸的侧叠边。
当然,当次级可拉伸的侧叠边是由液体可透过的布料制成,并且沿着所述吸湿芯子的横向相对侧边缘表面与液体可透过的顶片紧密接触。则液体可透过的布料所具有的较低的吸湿性可被吸湿芯子所具有的较高的吸湿性所补偿,因为液体排泄物将被吸湿芯子透过相应的次级可拉伸的侧叠边所吸收。但是,根据上述的先前技术的尿布的次级可拉伸的侧叠边不是这样安排的。
显然,液体排泄物可以经常从次级可拉伸的侧叠边的远端边缘上面通过,由于这个缘故,需要设置初级可拉伸的侧叠边。
本实用新型的主要目的是要这样来安排次级可拉伸的侧叠边,使得它不但可以阻挡半流体或半固体的排泄物,而且可以将有可能从次级可拉伸的侧叠边的远端边缘上面通过的这种排泄物,通过吸湿芯子的横向相对侧边缘表面引导至吸湿芯子中去。
为了过到上述目的,本实用新型通常是采用一种一次性使用的吸湿件,它具有一块可透过液体的顶片,一块液体不可透过的底片,夹在这两片之间的吸湿芯子,包括有从所述吸湿芯子的横向相对侧边缘向外延伸的所述顶片和所述底片的一些部分的初级可拉伸的侧叠边和次级可拉伸的侧叠边,这个侧叠边放在靠近所述吸湿芯子的相应侧边缘的位置与所述初级可拉伸的侧叠边的相应最外边的侧边缘之间,所述次级侧叠边每一个都有接近身体的边缘和远离身体的边缘,其纵向相对的两末端是坚固地轧密实的。本实用新型的特点在于,起液体阻挡器作用的所述次级可拉伸的侧叠边的近身边缘是粘接到放在所述吸湿芯子顶面上的所述顶片的顶部表面上的,而所述初级可拉伸的侧叠边的顶部表面是被起液体阻挡器作用的侧壁布片覆盖的,这样所述吸湿芯子,沿着其横向相对侧面边缘表面是液体可透过的。
最好,从吸湿芯子的横向相对侧边缘向外延伸的所述顶片部分就是相应的初级侧叠边的一部分,它比从所述吸湿芯子的所述相对侧边缘延伸出来的所述底片部分要窄一些,所述底片部分也是所述初级可拉伸的侧叠边的一部分,并且相应的侧壁布片的最外侧边缘延伸至所述底片部分的相应最外侧边缘处,而所述底片部分的相应最外侧边缘又是从吸湿芯子的所述横向相对侧边缘延伸出来的,在所述初级可拉伸的侧叠边的外围区域上,顶片部分不放在底片与相应的侧壁布片之间。
最好,中心部位带有一个纵向开口,并起液体阻挡器作用的盖布能盖住顶片的外部周边区域以及相应的次级可拉伸叠边的纵向相对两末端,同时所述盖布的外部周边区域与顶片放所述外部周边区域和相应的次级可拉伸的侧叠边的所述纵向相对两末端粘接在一起,这样,所述盖布的相应外部侧边区域构成所述的侧壁布片。
在根据本实用新型的吸湿件中,从所述次级可拉伸的侧叠边的所述远端边缘上面通过的液体排泄的数量,即沿着在所述远端边缘与穿着者皮肤之间形成的通路向外泄漏的液体排汇物数量,被阻挡在所述顶片部分与相应的密封区之间,所述的顶片部分沿着所述吸湿芯子横向相对的侧边缘表面盖住所述吸湿芯子,而相应的密封区则围绕穿着者的大腿,沿着所述初级可拉伸的侧叠边的外部边缘分布,当所述吸湿芯子的吸湿性较高时,这个数量的液体排泄物至少部分地通过吸湿芯子的横向相对侧边缘表面被引导入所述吸湿芯子中。用这种方法,这种液体排泄物可被所述吸湿芯子保持较长一段时间,从而减少对液体排泄物会直接接触穿着者皮肤,给穿着者带来不舒服的感觉,和从所述初级可拉伸的侧叠边向外泄漏的担心。
当然,因为顶片是暴露的,并且沿着所述侧边缘表面仍保持是液体可透过的,因此被吸湿芯子吸收的液体排泄物数量还可能会再次通过所述侧边缘表面浸出。然而,所设置的次级可拉伸的侧叠边本来就是为了阻挡半液体或半固体排泄物的,因此,如上面所述那样,再次通过吸湿芯子的所述侧边缘表面浸出的这种排泄物至少可以部分地再被吸湿芯子通过出现浸出的所述侧边缘表面被吸收。当与前述的先前技术方案的缺点比较时,本实用新型的这种方案的缺点还是可以接受的,在先前技术的方案中,液体排泄物被阻挡在所述次级可拉伸的侧叠边与所述初级可拉伸的侧叠边之间,并可防止它平缓向着吸湿芯子运动。
考虑到次级可拉伸的侧叠边的理想的作用,每一个次级可拉伸的侧叠边的这端边缘必需位于顶片的顶部表面之上的一个预定高度上,此顶片则是放在吸湿芯子顶面上的,而根据本实用新型将所述近身边缘粘接到放在吸湿芯子顶面上的顶片的顶部表面上可以有效地满足这个要求。根据本实用新型的这种方案允许所述次级可拉伸的侧叠边的尺寸比在所述近身边缘粘接到相应的初级可拉伸的侧叠边上的方案中的尺寸较小(较窄)。这样,根据本实用新型的方案的材料成本就可以降低。
本实用新型将通过例子结合附图来进行较详细的说明,其中:
图1表示作为本实用新型的一个实施例的一次性使用尿布的展开平面图;
图2是沿着图1X-X线所取的部分透视截面图。
参见图1和图2,尿布由一块液体可透过的顶片1,一块液体不可透过的底片2,夹在顶片1和底片2之间的吸湿芯子3和初级侧叠边4及盖布15的外部侧边区域组成,每一个初级侧叠片4是由从吸湿芯子3的横向相对侧边缘向外延伸的顶片1和底片2的一部分做成的,下面将对此尿布进行较详细的说明。顶片1的尺寸比底片较窄,因此底片2的横向相对侧边缘伸出至顶片1的相应侧边缘之外。顶片1和底片2,至少沿着它们的周边区域彼此重叠,并用粘结剂,热焊或超声波焊接方法粘接在一起。在向外伸出至顶片1的侧边缘之外的底片2的部分与盖布15的横向相对的外部区域之间相应地设有弹性件5,使初级侧叠边4变成长度方向可以拉伸的。从吸湿芯子3的纵向相对末端向外延伸的顶片1和底片2的部分一起相应地构成了在这些片的弹性件7之间的末端叠边,使得这些末端叠片7变成横向可以拉伸的。
尿布还包括次级侧叠边10,每一个侧叠边10都有一个近身边缘8和远端边缘9,用作湿气可穿透的液体阻挡器。次级侧叠边10的近身边缘8利用粘结剂,热焊接或超声波焊接的方法与顶片1的顶面粘接在一起,顶片1则放在吸湿芯子3的顶部表面上,这样顶片1沿着吸湿芯子3的横向相对侧边缘表面是敞露的。在图2中,用这种方法沿着吸湿芯子3的横向相对侧边缘表面敞露的顶片1的区域用数字11标出。形成相应远端边缘9的折叠边缘包含一弹性件12,使得这些远端边缘9在其纵向方向可以弹性拉伸。次级侧叠边10向内折叠,并且在纵向拉伸的情况下,利用粘结剂,热焊或超声波焊接的方法,在其纵向相对两端与顶片1的顶面粘接在一起,这样在次级侧叠边收缩时,正常情况下,它们总是偏向一边升高的。
尿布还包括先前提过的盖布15,在其中间有一个纵向开口14,作为液体的阻挡器。盖布15至少是其外部周边区域,利用粘结剂,热焊或超声波焊接的方法与顶片1的顶部表面和相应的次级侧叠边10的纵向相对末端13粘接在一起。当各个组件用这种方法粘接在一起时,除了暴露区域11外相应的次级侧叠边10的中间区,除了所述的纵向相对末端13之外以及在次级侧叠边10之间形成的中间区都是敞露的,而开口14的横向相对侧边缘16,在吸湿芯子底部与吸湿芯子3的横向相对侧边缘完全一致。每一暴露区11的宽度尺寸最好小于5mm,以便使可能通过这个区11发生的液体排泄物的浸出减至最少。当希望吸湿芯子3的高度或厚度尺寸小于5mm时,最好使吸湿芯子底部的横向相对侧边缘的尺寸比它的其余部分尺寸小或薄些。使用盖布15的优点是尿布的顶部(即内部)表面可作为液体阻挡器、减轻液体排泄物的扩散。本实用新型的另一特点,即液体不可透过的底片2和液体阻挡器盖布15是直接沿着横向相对外侧区域粘接在一起的,顶片1部分不放在底片与盖布之间,其优点是在底片2和盖布15之间不会有液体排泄物浸出。
当次级侧叠边10垂直抬起时,其远端边缘9的最外边缘在相应的初级侧叠边4的顶面之上的高度尺寸最好小于相应的初级侧叠边4的宽度尺寸。在将次级侧叠边10粘接在顶片1的顶面之前,也可以将次级侧叠边10的纵向相对末端13向外折叠,而不是象这里所述的实施例那样向内折叠,这不会偏离本实用新型的范围。然而,所述末端13最好是向内折叠,以便保证即使当相应的次级侧叠边10被穿着者大腿强迫进一步向外折叠时也不会延伸到相应的初级侧叠边4的外侧边缘之外去。次级侧叠边10的柔性最好比初级侧叠边4的柔性大一些,而次级侧叠边弹性件12的拉伸应力最好比初级侧叠边的弹性件5的拉伸应力小些。希望次级侧叠边10的柔性足够大,以防止由于压力造成穿着者腹股沟疼痛和出现印痕,因为次级侧叠边10的远端边缘9正常情况下是与穿着者腹股沟保持接触的。
虽然没有用图画出,而没有图也可以清楚,亦可以不用盖布15,同时与从所述盖布15上剪下的相应的侧边区域17相适应的布片(以后称为侧布片)可以和相应的初级侧叠边4的相当区域粘接在一起。应当理解,这些侧布片的内侧边缘或开口14的侧边缘16可以与顶片1的顶部表面粘接或不粘接在一起。
尿布的后腰部在横向相对末端没有压力敏感的粘接带固定器18,它是可拆卸地固定在前腰部的外表面上的。应当明白,本实用新型不仅对上面所述的所谓开式尿布可以适用,而且对所谓的闭式或短裤式尿布(没示出)也可以适用,这种短裤式尿布的前后腰部分,在其横向相对末端彼此焊接在一起。
为了实现本实用新型,可以使用对这种物品众所周知的材料。例如,顶片1可用由疏水纤维或多孔塑料薄膜制成的无纺织物做成,底片2可由不透液,只透潮气的塑料薄膜做成,吸湿芯子可由与吸湿性极强的聚合物粉末混合在一起的绒毛浆粘做成,次级侧叠边10以及盖布15可用由疏水纤维(如果需要,防水的)制成的无纺织物做成,而弹性件5、7、12可用天然或合成橡胶与弹性体做成。

Claims (3)

1、一种一次性使用的吸湿件,它具有一块液体可透过的顶片,一块液体不可透过的底片,一块夹在这块片之间的吸湿芯子,初级可拉伸的侧叠边和次级可拉伸的侧叠边;初级可拉伸的侧叠边包括所述顶片和所述底片,从所述吸湿芯子的横向相对侧边缘向外延伸的部分,次级可拉伸的侧叠边放在靠近所述吸湿芯子的相应侧边缘位置与所述初级可拉伸的侧叠边的相应最外侧边缘之间,每一个所述次级侧叠边具有一近身边缘和一个远端边缘,其纵向相对末端固定地折叠起来,其特征在于,实质上起液体阻挡器作用的次级可拉伸的侧叠边的所述近身边缘,呈粘接到放在所述吸湿芯子的顶面上面的所述顶片的顶部表面上的,同时所述初级可拉伸的侧叠边的顶部表面被起液阻挡器作用的侧布片覆盖,因此,所述吸湿芯子可以沿着其横向相对侧边缘表面是液体可透过的。
2、根据权利要求1的吸湿件,其特征在于,所述顶片的,从吸湿芯子的横向相对侧边缘向外伸出部分比所述底片的,从所述吸湿芯子的所述相对侧边缘伸出的部分要窄一些,所述的顶片部分是相应的初级侧叠边的一部分,而所述的底片部分也是所述的初级可拉伸的侧叠边的一部分。相应侧布片的最外端的侧边缘是从吸湿芯子的所述横向相对侧边缘伸出的,在所述的初级侧叠边的外部区域之上,顶片部分不放置在底片与相应的侧布片之间。
3、根据权利要求1的吸湿件,其特征在于,盖布中间有一长开口,它起液体阻挡器的作用,覆盖着顶片的外部周边区以及相应的次级可拉伸的侧叠边的纵向相对末端,所述盖布的外部周边区域与顶片的所述外部分周边区域及相应的次级可拉伸侧叠边的所述纵向相对末端粘接在一起,这样所述盖布的相应外部侧区域形成了所述侧布片。
CN94216382U 1993-12-02 1994-12-02 一次性使用的吸湿件 Expired - Lifetime CN2209514Y (zh)

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AU7910094A (en) 1995-06-08

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