CN86105127A - 一种具有z向优质吸收浓度梯度的非成层的吸收衬垫 - Google Patents
一种具有z向优质吸收浓度梯度的非成层的吸收衬垫 Download PDFInfo
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Abstract
一种经过改良的吸收制品,有一层吸收材料,该材 料有一定长度,一定宽度和一定厚度。优质吸收材料 的颗粒分布在吸收材料层内,这些优质吸收颗粒经 过处理形成一种大体上为连续的,非阶式的,正浓度 梯度的优质吸收剂而至少通过吸收层厚度的一个部 分。
Description
本发明是关于各种吸收制品,尤其是关于吸收制品中含有分散的、优质材料的粒子。
一次性应用制品,如:尿布、卫生餐巾、残疾人不能自理的服装、绷带等,都应用吸收材料的衬垫或吸收层来吸收和保留液体,诸如:身体的分泌流出液。人们已做了很大的努力,用吸收衬垫来保留液体量的增加。用衬垫来增加吸收容积,有助于衬垫的物理容积,如厚度等的减小。
各种规格的吸收衬垫都含有优质吸收材料,如:优质吸收聚合物,来增加衬垫的液体滞留量。在某些外形结构上,优质吸收材料被有选择地置于衬垫的特定分散区域。例如,1975,6月10日,美国向R.Cook,等人颁发的专利3,888,257中,叙述了一种一次性应用的吸收制品,它有一个纤维木浆的基质。水解胶体聚合物的颗粒被置于中间区的一个三维的区域里或纤维基质条中。1982,6月8日,美国向D.Holtman等人颁发的专利4,333,462中,叙述了一种吸收结构,该结构有一个吸收层,包括二个储存器。第一储存器向着制品的盖面,第二储存器是位于第一储存器的下面并含有优质吸收颗粒。1983,5月3日,美国向R.Elias颁发的专利4,381,783中,叙述到一种吸收制品,该制品有一吸收层,至少有一分散内袋。该袋含有分散优质吸收颗粒和分散加速浸泡剂颗粒的掺和剂。1983,5月3日向P.Mazurak等人颁发的美国专利4,381,782为一种强吸收力,低密度纤维的结构,诸如:织网和层,它们都含有粉状或微结晶水凝胶制剂的混合物和表面活化处理的填充材料。水凝胶制剂位于一个横带内,并一直延伸至吸收层的宽度处。1982,6月8日,美国向G.Wiegner颁发专利4,333,465中,公开了一种餐巾,该餐巾含有一种吸收亲水纤维填充材料。填充材料的内核心有一个衬垫,里面含有高性能的吸收聚合物。1975年9月17日公布的英国专利1,406,615叙及吸收衬垫,它们都含有吸收胶凝剂,如:纤维素醚,纤维素酯,乙酰淀粉。粘胶剂被注入衬垫的选择中间域。
下列专利所公开的吸收衬垫,它们中间层材料的组成比衬垫的其它部分吸收力强。如:1929年2月19日向美国H.Williams颁发的专利1,702,530;1963年1月15日,向J.E.J.Mosier颁发的美国专利3,073,309;和1964年2月18日向J.M.Mosier颁发的某个专利3,121,427。
1972年6月13日向B.Harper,等人颁发的美国专利,公开了一些符合保障身体的吸收制品,它们含有干燥的、固体的、水胀的、不溶于水的聚合的吸着剂,且都由很轻的交联聚合物组成。1972年6月20日向C.Harmon颁发的美国专利3,670,731中,公开了一种吸收敷料,它含有一种水溶的水解胶体的成分。水解胶体能与一吸收衬垫的纤维相混合,或沿着吸收制品的较大表面,被置于一分散层上。
吸收衬垫有优质颗粒,分布在条状结构中。例如:1976年7月13日向K.Hokanson颁发的美国专利中,叙述了一种C-折叠形构造的吸收衬垫,它有一个中间部分,均匀地散布着水解胶体颗粒。美国专利4,410,324叙述了一种一次性应用的手巾,它有一个吸收衬垫,从中间折叠至各末端来增加叉口处的吸收材料。水解胶体材料可沿吸收衬垫的边缘,把它置于垫条内。
英国专利申请GB2145661A叙述了一种吸收制品,至少有二个松散的优质吸收层和一个毛细装置。该毛细装置一直延申至优质吸收层面的中间来帮助分散液体。
一般的吸收制品,如上所述,已不能充分利用优质吸收材料的全部潜能。当优质材料吸收液体时,它们基本上就会膨胀并形成一种粘胶结构。这种粘胶结构常会阻塞液体的进一步输入到保留吸收的结构。其结果,液体可能无法到达保留优质吸收材料位置,于是吸收制品的效果并会大大降低。要克服这种“粘胶阻塞”现像需具备各种技术。例如:现在已应用一种技术,即把优质吸收颗粒均匀地分布在一种吸收衬垫内和另一种技术,即应用一种松散的毛细机械结构,通过优质吸收材料量,来分散液体。然而,一般的技术,对可靠地分散液体和充分利用全部优质吸收材料,并不能完全令人满意。
一般吸收结构,应用优质吸收剂还有一个缺点,是在吸收结构的表面生成一种不必要的滑溜的、似粘胶的感觉。这粘糊糊的感觉在吸收衬垫结合在服装里时,是特别有害的,如:婴儿的尿布、残疾人的服装、和女性的餐巾。一般吸收制品都已经提及这个问题,在某些地方即离开制品的那些表面,有选择地来隔绝优质吸收材料,制品的这些表面是接触穿着者的身体。例如:优质吸收材料被限制在结构的中央核心地区,而且也被限制在结构的外层,离开穿着者的身体。然而,这些技术对粘胶阻塞问题很有影响。结果,一般吸收结构并不能适当地隔绝优质吸收剂所生成的粘胶不跟服装穿着者的体面相接触,不过也能适当地减少粘胶的阻塞。
本发明提供了一种改进的吸收制品,该制品有一吸收材料的层面,具有一定的长度、一定的宽度和一定的厚度。优质吸收材料的颗粒被分布在吸收材料层面里,这些优质吸收颗粒经过处理形成一种大体上为连续的,非阶式的,和非层面的优质吸收材料的浓度梯度,而至少通过吸收层厚度的一个部分。
在一定浓度的梯度中,特别处理过的优质吸收剂经过吸收层的厚度就会减低粘胶阻塞的发生和改进全部优质吸收材料量在液体分布上的可靠性。另外,在有选择的吸收区域内,优质吸收剂增加浓度的地方就会减少粘胶材料跟服装穿着者身体的潜在接触。结果,这发明的制品就提供了一种吸收结构,该结构更有效地利用了一种已经给以的优质吸收材料量并改进了服装的舒适性。
当参照下列发明的说明和附图之后,本发明将被更为全面地理解,优点更为显著:
图1,代表性地显示一种按照本发明制成的一次性应用衣着物件的透视图,
图2,是一次性应用衣着物件的横截面正视图,截面是沿图1的2-2处,并代表性地显示出一种优质吸收浓度梯度,含有任意大小的优质吸收颗粒。
图3,代表性地显示一种优质吸收浓度梯度,基本上含有均匀一致的优质吸收颗粒。
图4,代表性地显示一种优质吸收浓度梯度,在中间,较大规格的颗粒主要是靠近吸收层的一边。
图5,代表性地显示一种优质吸收浓度梯度,在里面,浓度在吸收层的中间部分达到最大值。
图6,代表性地显示一种优质吸收浓度梯度,在中间,浓度有一个最小值,位于体面和吸收层的外面。
图7,显示的为曲线图,该图说明了在经过本发明的吸收制品的厚度近似的浓度梯度的例子。
图8,显示的为曲线图,该图说明一种优质吸收浓度梯度,位于体面和吸收层外面之间的浓度达到一个最小值。
图9,是前工艺一次性应用衣着物件的横截面正视图,在一吸收层中,它有基本均匀分散的优质颗粒。
图10,显示的为曲线图,它说明在前工艺的衣着物件中优质吸收颗粒的分布,在该衣着物件中,优质吸收颗粒在吸收层里,基本上是均匀分布的或颗粒基本上被限制在分散层的区域里。
图11,代表性地显示一优质吸收浓度梯度,起始于离开吸收层的体面的离散距离;止于离开吸收层的外层面的离散距离。
下文详述一种一次性应用尿布的范围。很显然,本发明的吸收结构也能用于其它各种规格的制品,如:卫生餐巾、残疾人的服装、绷带、吸水性手巾等等。所有这些制品都能被归纳在本发明的范围内。
参照图1,一种一次性应用的尿布4有一液体渗透内衬垫6,一个液体不可渗透的外层,如:背面8和一个吸收层,如:吸收层10,该层位于衬垫和背面之间。内衬垫和背面是比吸收层大一些,并且有末端临介部分12一直延申至吸收层10的末端。衬垫和背面也有临介部分14一直延申至吸收层的各边上。一般,衬垫6和背面8是沿着临介部分12和14,彼此被固定着。
一般材料被用作尿布4的组成成分。衬垫6可以是任一种柔软的、有弹性多孔的薄片,它能让液体通过,并举例来讲,含有一种非织物的网或聚烯烃纤维的薄片,如:聚丙烯纤维。衬垫也可包括湿强力薄纸,一种编织丝状薄片或诸如此类的薄片。另外,衬垫可用一种表面活化剂处理,来帮助液体的输送。
背面8是一个液体不可渗透层,并含有一薄网或塑料膜的薄片,如:聚乙烯、聚丙烯、聚氯乙烯或诸如此类材料。背面可以是透明的,或有一压花或无光泽的表面来使它变得不透明。
吸收层10可以由任何适当材料组成,一般是纤维素材料,如:一种木浆纤维的气体形成层,人们熟悉的“磨里”(“fluff”)。吸收剂、绉纹填塞物或纤维薄片9和11可以分别置于吸收层10,衬垫6和背面8。
衬垫6、背面8和吸收层10可用任一种适当的方法来把它们合在一起,形成一种完善的成品尿布。各组分可粘结在一起,即用热融或压敏粘胶剂的窄条或提花,全部或提花热封闭,双面的,压敏粘胶带的窄条等等。一种特别有效的粘胶系统是应用加宽的,平行的热融粘胶带,该带被置于背面8的内表面上。吸收层被粘结在背面,沿着粘结带的部分,衬垫6,沿着粘结带的其它部分,被粘结在背面8上,粘结带是位于临介部分12和14但在吸收层10的外部地区。
尿布4有一个一般的水漏状或I-状,在靠近尿布的中央有一狭窄叉状部分16,并在尿布的每一端头,都有腰带部分18。细长的弹性装置20是安置在吸收层带10的邻近,每边弹性一直延申至腿的部分,该部分很适合婴(幼)儿的腿部。一般压敏带22是附在腰带部分18。尿布4是很适合幼儿,内衬垫6靠在幼儿的皮肤上。一根腰带部分绕着幼儿腰的一部分,另一根腰带部分绕着幼儿腰的其它部分。这二根腰带部分,可用压敏粘胶带22把它们重叠和联在一起,粘胶带22可把尿布置于所需的地方。
在图1和图2的说明中,一般尿布4,和特别是吸收层10都有一经向长度30和一横向宽度28。另外,吸收层10有一厚度26,基本上一直延伸至Z-方向32。在图2的说明中,优质吸收材料24的颗粒被分布在吸收材料,吸收层10内。优质吸收材料颗粒经过处理形成一种大体上为连续的,非阶式的优质吸收剂的浓度梯度的而通过吸收层的最厚部分。结果,经处理的优质吸收颗粒便成为一种基本上非叠层的形状。优质吸收剂,在吸收层的厚度内,并不限于一特定级位或层面。
关于本发明使用的“优质吸收剂”一辞是关于一些材料,该材料,在体液中,0.5psi压力下,至少要能吸收和保留相当于自身十五倍的重量。这些优质吸收材料包括树胶,如:瓜耳胶。优质吸收剂也包括聚酯,如:聚丙烯酸钠,淀粉接合聚丙烯酸钠,聚丙烯酸酰胺等等。
图3,吸收层10有二个主要表面,一个主要表面是位于最接近衬垫6处,一般通称为吸收层体面。吸收层10的另一主要表面是位于最接近背面8,一般通称为吸收层10的外面。
为了改进吸收层10的吸收性,优质吸收颗粒24被分散形成一种浓度梯度,人们能观察到该浓度梯度连续级位沿着Z-向在尿布4的厚度内移动。在图2所示的实施方案中,优质吸收浓度逐渐增加至超过尿布4的厚度部分,来提供一个正梯度,人们能观察到连续的级位,其顺序起始于吸收层10的体面,终止于吸收层的外面。优质吸收颗粒基本上均匀地分布在吸收层的宽面,这是经过对吸收层内,一种特殊厚度级位的测定。优质吸收颗粒也基本上沿着吸收层面的长度均匀地分布着,这是对吸收层内,一种特殊厚度级位的测定。
在本发明的一个特殊方面,优质吸收浓度,在吸收层的体面上,是小于吸收层内的平均优质浓度,而且优质吸收浓度在吸收层的外面是大于平均优质吸收浓度。例如优质吸收浓度逐渐增加,人们就观察到在吸收层里,各级位的浓度,从体面表面向外层表面移动。
为本发明的目的而做的定位优质吸收浓度的测定,可拿一切片沿一平面通过吸收层,该切片一般是垂直于Z-向,以便在吸收层10内露于一个经过选择的层面。优质吸收颗粒所包括吸收层的露出区域的百分比可认为是百分比区域浓度。区域百分比浓度一经测定,重量百分比浓度便能算出,即用推测球形颗粒的形状,把百分比区域浓度提高至3/2方幂,并在切片内,考虑不同材料的密度。在吸收层10内,平均优质吸收区域浓度是在吸收层内,至少露出三个层面来测定该定位区域浓度,然后再计算这些区域浓度的平均值。平均重量浓度可用类似的方式进行计算,考虑优质吸收材料和一般吸收材料之间的密度差异。
所说明的吸收结构提供了几种有意义的优点。低浓度的优质吸收颗粒,在接近吸收层10的体面表面上,和高浓度的优质吸收颗粒,在接近吸收层的外表面上,在使用过程中,均能很好地减低优质吸收剂的移动。另外,优质吸收颗粒的浓度梯度能改进吸收能力的特性。一种优质吸收剂的低浓度,在吸收层的体表面上,能降低在体表面上粘胶的阻塞。其结果,液体流出和漏损便降低,而且有一个更完善的对整个吸收结构的利用。较低的优质吸收浓度,在吸收层10的体表面上,也可作为一个贮存器,该贮存器可贮存液体的突然输入,然后以较缓慢的速率把它输送至吸收层里有较高浓度的优质吸收剂区域。
在图2说明的实施例中,优质吸收剂颗粒的大小,在浓度梯度内,基本上是任意的。然而,颗粒大小的分布会有其它的构形。例如在图3的说明中,优质吸收浓度梯度含有一些颗粒,这些颗粒基本上有大小一致的规格。
在发明的另一方面,优质吸收颗粒在位于吸收层10的体面附近,平均来讲,在尺寸上要大于位于吸收层外面的优质吸收颗粒。特别,位于吸收层10的体面附近的优质吸收颗粒,其平均直径,是在300-1,000微米。优质吸收颗粒,位于吸收层10的外面,其平均直径,是小于300微米。在吸收层10的外表面和体面间的各级位上,平均颗粒的大小一般是减少的,人们能观察到这些大小颗粒从吸收层10的体面向吸收层的外表面移动。
在本发明的另一特殊方面,优质吸收剂的浓度进入吸收层10的离散距离中近似于零,这是从吸收层的体面测得。结果,Z-向的优质吸收浓度梯度从零升起,从下端的一点起始,吸收层10的体面,在图7和图11中已说明。优质吸收浓度,超过一离散距离进入吸收层10,从吸收层的外面已测得,也可能是零。结果,Z-向优质吸收浓度梯度,在抵达吸收层10的外表面前,便终止或回至零点。
关于本发明的目的,正Z-向浓度梯度可被认为是起始于那一点,即接近于吸收层10的体面,在那一点上,优质吸收浓度基本上有一个非零点的数值,当人们从吸收层体面进一步观察吸收层内的联续层面时,发现该数值开始逐渐上升。同样,Z-向优质吸收浓度可被认为是终止于吸收层的外表面,或很接近于吸收层10的外表面的那一点上,其浓度基本上降至零值。
在本发明的特别有效方面,优质吸收浓度的比例,在梯度的起始至优质吸收浓度梯度的终止,用区域百分比浓度测定至少是1∶2,或用百分比重量浓度测定,至少,约为1∶3,关于经过改进的效果,从起始至终止的梯度比例,用区域百分比测定至少是约1∶5,或用重量百分比测定,至少约1∶11。更佳地,起始至终止浓度梯度比例,用区域百分比测定,至少是1∶10,或用重量百分比测定,至少约1∶30。
在本发明的其它优点方面,浓度梯度线有一正斜面,范围约为0.02-0.5;更好,有一正斜面,范围约在0.03-0.4;最好地,有一正斜面,范围约在0.05-0.2。浓度梯度线的斜面采用在百分比区域优质吸收浓度中,以Z-向的变化的增量(delta)来测定的,并在吸收层10的Z-向厚度百分比中,把它除以变化的增量(delta),该变化,在百分比区域浓度中发生。这种测定在图7中加以说明。
相对百分比浓度,可沿一平面用裂开吸收层10来测定,吸收层基本上是垂直于Z-向。在吸收层内露出一个经过选择的表平面。相对区域浓度可用比较区域总量来测定,该区域被优质吸收颗所复盖,相对于吸收层总露出区域。重量百分比浓度可应用吸收磨里材料的密度和优质吸收颗粒的密度来计算。
在吸收层10内,百分比区域的一个特殊平面,复盖着优质颗粒,是可用下列方法来测定。用切割、剥脱、或移去上面吸收层材料,把一个经过选择的平面露出。把露出部分喷上一种指示溶液至有颜色,并让优质吸收颗粒任意扩散。指示溶液在优质颗粒和吸收层材料间生成一种对照物,对照区域可用影像分析设备来测量,如:用一种剑桥定量电视显微镜900影像分析系统来测定被优质颗粒所复盖的相对百分比区域。
在上述方法的一个例子中,优质吸收颗粒含有淀粉并被喷上碘化钾的一种水溶液。水溶液是从一存贮器里制备的,该存贮器中有10克K I,1克I2和足量的水来生成100ml的总液体溶液。实际喷雾溶液含有5-10的百分比存料。把一种气相色谱喷雾器置于离吸收层试样10-12英寸处,试样被喷雾5-10秒,直至有核的直径1-2mm的液滴在试样周围形成。含水的KI2指示溶液扩散至优质吸收颗粒,并按一个因数约为2,增加复盖面。这种优质吸收颗粒的膨胀和扩散增加了测试的灵敏度。最后对影像分析读数做适当的调整以补偿粒子扩散和测定被干性颗粒复盖的区域。
图5说明了本发明的一个方面,优质吸收剂的浓度,在吸收层10的中央芯处是大于吸收层的外表面或体面。关于改进实施,区域百分比优质吸收浓度,在浓度分布梯度的中间,大约是优质吸收浓度,在梯度分布终端的10倍。
图6和图8说明本发明的一个方面,优质吸收浓度,在吸收层10的中间区,不是小于吸收层的外面,就是小于吸收层的体面。所示的实例,优质吸收区域百分比浓度下降,人们能见到在吸收层10内,起始于吸收层的体面,在联续面上的区域浓度。区域百分比浓度达到一个最小值,然后开始增加,并给浓度梯度提供了一个正斜面。优质吸收浓度,在吸收层的体面上,也是小于在吸收层外面的优质吸收浓度。
关于改进实施,优质吸收颗粒的总含量为复合吸收层的12-15重量百分比。复合吸收层含有一般的吸收材料和优质吸收材料。当一般纤维吸收材料由木浆磨里组成时,磨里通过压缩便起增浓作用,生成一种磨里密度,浓度范围约为每cc0.13-0.18克。优质吸收剂的量约有15重量百分比以上没有得到改进,且可能实际降低吸收作用。磨里密度每cc低于约0.13克便生成不良的液体分布,同时磨里密度每cc大于约0.18克并不能进一步改进液体的分布,并能生成不需要的属性,如:硬斑点、变硬、吸液性差和适合性差等等。
下列实例对本发明作进一步阐述。所述的具体材料,数量和其它参数都是示范性的,并不是特地用来限制本发明的范围。
试样尿布制品是按本发明制造的,其特性列于表1。
表1
优质吸收剂Z-向的方布
优质吸收材料复盖区%
试样 种类 体面 中间 外面
1 用12% SANWET IM1000 0.21 2.85 5.6
(按重量,在磨里中)的吸收层
2 用12% SANWET IM1000 4.25 0.6 6.2
(按重量,在磨里中)的吸收层
浓度比∶体面层比外面层 斜面
试样 区域% 重量%* (变化区域%/变化深度%)
1 1∶27 1∶139 +0.54
2 1∶1.5 1∶1.8 -0.07
(体面层-中间)
+0.11
(中间-外面层)
*近似计算法。
试样1较佳,因为它在通过吸收层的厚度上,有一正的优质吸收浓度。试样2欠佳,因为在近吸收层的体面,有一相对较高的优质吸收浓度。对于浓度梯度,所需的正斜面只能从吸收层的中间部分起始。
作为与按本发明制成的尿布对照的一般尿布,其性能列于表2。
一般的尿布有优质吸收颗粒,通过吸收层基本上为均匀地分散。
表2
优质吸收材料复盖区%
试样 种类 体面层 中间 外面层
3 用12% SANWET IM1000 2.2 3.05 3.9
(按重量,在磨里中)的吸收层
比例∶体面层比外面层 斜面
试样 区域% 重量%* (变化区域%/变化深度%)
3 1∶1.8 1∶2.4 +0.017
*近似计算法
表3列出一些漏损试验比较数据。这些数据说明吸收结构有一较低的优质吸收浓度,在接近吸收层的体面的表面上,与一个较高的优质吸收浓度,在接近吸收层的外层面相结合,当上述结构与一般的、均匀分布的、有优质吸收剂的结构,在通过吸收磨里层,相比较时,显示了较少尿泄漏和较少优质吸收剂移入尿布的内衬垫上。
表3
体面/外面层 尿布重量%/
过夜试验产品 优质吸收材料 优质吸收材料 漏损50(b)
距离比例(区域) 在体面衬上
4g SANWET
IM1000/30g磨里 1∶27 21% 250g
4g SANWET
IM1000/30g磨里 1∶1.5 40% 195g
4g DOW DRYTECH
SAM 30g磨里 1∶27(a) 8% 247g
4g DOW DRYTECH
SAM 30g磨里 1∶1.5(a) 19% 223g
(a)根据定性分析的分配比例。
(b)250克的漏损值50意指在过夜使用过程中,先吸收250克液体,则50%被测试的尿布不合规格。
本发明经详尽说明后,显然,对本发明很容易做各种变动和改进,这一切应在所附权利要求所定义的范围之内考虑。
Claims (12)
1、一种吸收制品,其特征在于包括:
a.一种吸收材料层面,有一定长度,一定宽度和一定厚度,
b.优质吸收材料的颗粒被分布在上述的吸收材料层面内,
c.上述优质颗粒经过处理形成一种大体上连续的、非阶式的、正浓度梯度的优质吸收剂至少通过上述吸收层厚度的一个部分。
2、按照权利要求1所说的制品,其中所述优质吸收颗粒,基本上是均匀地分布在上述吸收层面的宽面上,这在吸收层面的一个特殊厚度面上已测得。
3、按照权利要求1所说的制品,其中所述的优质吸收颗粒基本是沿着上述吸收层面的长度均匀分布,这在吸收层面的一个特殊厚度面上已测得。
4、按照权利要求1所说的吸收制品,其中优质吸收浓度的梯度逐渐增加,当优质吸收浓度被测得在增加远离上述吸收层面的一个体面的表面距离。
5、按照权利要求1所说的吸收制品,其中优质吸收浓度,在上述吸收层面的一个体面的表面上,是小于上述吸收层面的平均优质吸收浓度而优质吸收浓度,在上述吸收层面的一个外部表面上,是大于上述平均优质吸收浓度。
6、按照权利要求1-5所说的吸收制品,其中,优质吸收颗粒,位于上述吸收层的体面,平均大于位于上述吸收层的外部表面的优质吸收颗粒。
7、按照权利要求1所说的吸收制品,其中,优质吸收浓度,在离散距离中基本上近似于零,该值是从体表面向吸收层内测得。
8、按照权利要求1所说的吸收制品,其中,优质吸收浓度,在离散距离中,基本上近似于零,该值是从外层面向上述吸收层里测得的。
9、按照权利要求1所说的吸收制品,其中,优质吸收浓度,位于不完全通过上述吸收层厚度的浓度,大于在体面和外部表面的浓度。
10、按照权利要求7-9所说的吸收制品,其中,优质吸收颗粒,位于上述吸收层的体面附近,平均大于位于上述吸收层的外表面附近优质吸收颗粒。
11、按照权利要求10所说的吸收制品,其中,优质吸收颗粒,在上述吸收层的体面的表面附近的,其尺寸大小是在300-1,000微米。
12、按照权利要求10所说的吸收制品,其中,优质吸收颗粒,位于上述吸收层的外表面的,其尺寸大小约小于300微米。
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US06/767,950 US4699823A (en) | 1985-08-21 | 1985-08-21 | Non-layered absorbent insert having Z-directional superabsorbent concentration gradient |
US767,950 | 1985-08-21 |
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CN198686105127A Pending CN86105127A (zh) | 1985-08-21 | 1986-08-19 | 一种具有z向优质吸收浓度梯度的非成层的吸收衬垫 |
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JP2013252333A (ja) * | 2012-06-08 | 2013-12-19 | Unicharm Corp | 吸収体及びそれを備えた吸収性物品 |
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CN203425131U (zh) * | 2013-03-28 | 2014-02-12 | 陈正平 | 一种纸尿裤前贴复合结构 |
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-
1985
- 1985-08-21 US US06/767,950 patent/US4699823A/en not_active Expired - Fee Related
-
1986
- 1986-07-30 CA CA000514958A patent/CA1264013A/en not_active Expired
- 1986-07-31 ZA ZA865752A patent/ZA865752B/xx unknown
- 1986-08-19 AT AT91120905T patent/ATE112957T1/de not_active IP Right Cessation
- 1986-08-19 EP EP19910120905 patent/EP0478011B1/en not_active Expired - Lifetime
- 1986-08-19 AT AT86111435T patent/ATE77043T1/de not_active IP Right Cessation
- 1986-08-19 DE DE19863685619 patent/DE3685619T2/de not_active Expired - Fee Related
- 1986-08-19 EP EP19860111435 patent/EP0212618B1/en not_active Expired - Lifetime
- 1986-08-19 BR BR8603954A patent/BR8603954A/pt not_active IP Right Cessation
- 1986-08-19 CN CN198686105127A patent/CN86105127A/zh active Pending
- 1986-08-19 DE DE19863650108 patent/DE3650108T2/de not_active Expired - Fee Related
- 1986-08-20 KR KR1019860006854A patent/KR940008958B1/ko not_active IP Right Cessation
- 1986-08-20 AU AU61638/86A patent/AU583146B2/en not_active Ceased
- 1986-08-21 MX MX003515A patent/MX166009B/es unknown
- 1986-08-21 GB GB8620369A patent/GB2179257B/en not_active Expired
- 1986-08-21 JP JP19647386A patent/JP2633837B2/ja not_active Expired - Fee Related
-
1992
- 1992-09-28 SG SG97092A patent/SG97092G/en unknown
- 1992-12-17 HK HK103092A patent/HK103092A/xx not_active IP Right Cessation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101163459B (zh) * | 2005-08-29 | 2012-05-16 | 花王株式会社 | 吸收性片材 |
CN1985783B (zh) * | 2005-12-20 | 2011-12-07 | 花王株式会社 | 吸收性片材以及使用了该吸收性片材的吸收性物品 |
CN101600408B (zh) * | 2007-01-29 | 2013-03-13 | 国立大学法人东京大学 | 吸收性物品 |
Also Published As
Publication number | Publication date |
---|---|
JPS6245703A (ja) | 1987-02-27 |
KR940008958B1 (ko) | 1994-09-28 |
KR870001821A (ko) | 1987-03-28 |
AU583146B2 (en) | 1989-04-20 |
EP0212618B1 (en) | 1992-06-10 |
EP0478011A2 (en) | 1992-04-01 |
US4699823A (en) | 1987-10-13 |
GB2179257B (en) | 1989-10-11 |
ATE112957T1 (de) | 1994-11-15 |
EP0212618A1 (en) | 1987-03-04 |
DE3685619T2 (de) | 1993-02-11 |
BR8603954A (pt) | 1987-03-24 |
EP0478011B1 (en) | 1994-10-19 |
HK103092A (en) | 1992-12-24 |
ZA865752B (en) | 1987-03-25 |
DE3650108T2 (de) | 1995-02-23 |
MX166009B (es) | 1992-12-15 |
JP2633837B2 (ja) | 1997-07-23 |
GB8620369D0 (en) | 1986-10-01 |
DE3650108D1 (de) | 1994-11-24 |
DE3685619D1 (de) | 1992-07-16 |
GB2179257A (en) | 1987-03-04 |
SG97092G (en) | 1992-12-04 |
CA1264013A (en) | 1989-12-27 |
EP0478011A3 (en) | 1992-04-29 |
AU6163886A (en) | 1987-02-26 |
ATE77043T1 (de) | 1992-06-15 |
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