CN115023516A - 用于生产单层或多层无纺织物的设备和方法 - Google Patents

用于生产单层或多层无纺织物的设备和方法 Download PDF

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Publication number
CN115023516A
CN115023516A CN202080090090.1A CN202080090090A CN115023516A CN 115023516 A CN115023516 A CN 115023516A CN 202080090090 A CN202080090090 A CN 202080090090A CN 115023516 A CN115023516 A CN 115023516A
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CN
China
Prior art keywords
nonwoven fabric
nonwoven
web
layer
fibrous material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202080090090.1A
Other languages
English (en)
Inventor
托马斯·魏格特
弗洛里安·赛尔斯
凯·伯勒尔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Trutschler Group Europe
Voith Patent GmbH
Original Assignee
Trutschler Group Europe
Voith Patent GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Trutschler Group Europe, Voith Patent GmbH filed Critical Trutschler Group Europe
Publication of CN115023516A publication Critical patent/CN115023516A/zh
Pending legal-status Critical Current

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    • D04H18/00Needling machines
    • D04H18/04Needling machines with water jets
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    • B32B37/0038Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving application of liquid to the layers prior to lamination, e.g. wet laminating
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    • B32B37/0046Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by constructional aspects of the apparatus
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Abstract

本发明涉及一种设备和一种方法,包括斜网成形机(1),构造用于将湿铺的纤维材料(9)的幅面放置在环绕的第一传送带(10)上;另一个传送带(13),构造用于从环绕的第一传送带(10)接收湿铺的纤维材料(9)的幅面;沿材料运输方向设置在下游的梳理机(15),构造用于将梳理机无纺织物(15a)引入到设备(100)中;沿材料运输方向设置在下游的、具有至少一个水刺头(16)的水刺加固装置,构造用于将单个纤维幅面或者多个纤维幅面加固和/或结合和/或结构化;以及沿材料运输方向设置在下游的烘干机(18),其中,所述设备构造用于可选地生产单层或多层无纺织物(19)。

Description

用于生产单层或多层无纺织物的设备和方法
技术领域
本发明涉及一种用于生产单层或多层无纺织物的设备和一种方法,以及一种根据所述方法生产的无纺织物。
背景技术
通过EP 1929080 B1已知,将散纤维与无纺织物结合,其中,散纤维总是通过传送带从下方被支撑并且被引导并且因此同时放置在无纺织物上。这种方法和与此有关的设备是非常昂贵的,因为传送带在一段较长的区段上的引导需要绝对的平行。这在结构上非常昂贵地实现,因为在传送带之间需要恒定的张力并且两个传送带在每个位置上必须具有相同的速度,以防在最终产品中产生不受控制的拉伸。
在湿法成网产品的情况下,抗拉强度通常不足,从而在卫生用品中仅可能受限地使用。高的流体吸收能力和增大的抗拉强度的组合是值得企望的并且增加了使用范围。
发明内容
本发明的任务在于,提供一种用于生产单层或多层无纺织物的设备和方法,所述设备可以灵活地使用并且利用所述设备可以将湿铺的纤维与至少一种梳理机无纺织物一起加工。此外,本发明的任务在于,由湿铺的纤维材料生产同时具有高强度和良好流体吸收能力的无纺织物。
本发明通过根据权利要求1、9和14的教导解决所提出的任务;本发明其它有利的构造形式的突出之处在于从属权利要求。
根据权利要求1所述的技术教导,所述设备包括:
斜网成形机,构造用于将湿铺的纤维材料的幅面放置在环绕的第一传送带上,
另一传送带,构造用于从环绕的第一传送带接收湿铺的纤维材料的幅面,
沿材料运输方向设置在下游的梳理机,构造用于将梳理机无纺织物引入到设备中,
沿材料运输方向设置在下游的、具有至少一个水刺头的水刺加固装置,构造用于将单个纤维幅面或者多个纤维幅面加固和/或结合和/或结构化,
以及沿材料运输方向设置在下游的烘干机,
其中,所述设备构造用于可选地生产单层、双层或三层无纺织物。
根据所述实施例,所述设备构造用于可选地加工湿铺的纤维材料的幅面或梳理机无纺织物,或者加工纤维材料的幅面连同梳理机无纺织物。在此,不必将湿铺的纤维材料的幅面颠倒地放置在输送带或无纺织物上。优选地,湿铺的纤维材料的幅面可以要么单独地要么与梳理机无纺织物组合地加工。所述设备这样灵活,使得在关闭斜网成形机的情况下,在水刺加固装置中仅将梳理机无纺织物加固和/或结构化。纤维材料的幅面的堆置及其与另一种梳理机无纺织物的可能组合这样设计,使得不会对单个幅面或多层幅面施加拉伸。
纤维材料的幅面可以优选借助于所述至少一个传送带直接运送至水刺加固装置。斜网成形机和梳理机这样布置,使得两者可以相互独立地生产单层无纺织物。在此,单层无纺织物可以可选地由纤维材料的幅面构成,该幅面不仅可以构造为单叠的或者也可以构造为多叠的,或者仅由梳理机无纺织物构成。
优选沿材料运输方向首先设置斜网成形机,然后接着是梳理设备。以有利的方式,用于运输纤维材料的幅面的传送带至少部分地设置在梳理机下方。在此,传送带可以在地下被引导或者设置在梳理机的支架之间。
所述设备配置的补充规定,沿纤维材料的幅面的运输方向在斜网成形机上游或者下方设置退绕站,利用该退绕站对于纤维材料的幅面替代地可以将另一个第一无纺织物引入到所述设备中。因此,可以将梳理机无纺织物与另一个第一无纺织物组合,该第一无纺织物例如由具有某一纤维长度的长纤维制成,利用斜网成形机对其进行加工是没有意义的。代替退绕站,可以沿织物幅面的运输方向在斜网成形机上游设置另一个梳理设备。
优选所述设备构造用于生产双层无纺织物,该双层无纺织物可以由纤维材料的幅面与梳理机无纺织物或者与无纺织物构成。
优选所述设备构造用于生产三层无纺织物,该三层无纺织物可以由纤维材料的幅面与梳理机无纺织物和第二无纺织物构成。
按照本发明的用于生产单层或多层无纺织物的方法规定,将湿铺的纤维材料的幅面和/或无纺织物和/或梳理机无纺织物放置在环绕的传送带上并且将其单独或者与上述纤维材料的幅面或无纺织物组合地作为单层至三层无纺织物输送给水刺加固装置以用于结合和/或加固和/或结构化并且然后烘干。纤维材料的幅面的堆置及其与另一种梳理机无纺织物的可能的组合这样设计,使得不会对单个幅面或多层幅面施加拉伸。这以纤维材料的更高强度为前提,这通过如下方式实现,即,将通常由纸浆制成的湿铺的纤维材料与重量百分比30至重量百分比5与溶剂纺丝纤维素纤维、例如Lyocell结合或者混合。湿铺的纸浆纤维与例如由Lyocell制成的溶剂纺丝纤维素纤维的组合将纤维材料的湿强度提高了60%以上,因为以令人惊讶的方式,溶剂纺丝纤维素纤维的原纤维与短的纸浆纤维高度粘合。增大的纤维材料湿强度能实现在设备中进一步加工,而无需将纤维材料包围或者通过第二条传送带引导。与现有技术的材料组合相比,作为短切纤维的溶剂纺纤维素纤维同样可以具有比通常使用的更短的纤维长度。已证实,在溶剂纺纤维素纤维的平均纤维长度为8至12mm,纤度为1.2至1.8dtex的情况下,非常适合用于湿法成网工艺。由于溶剂纺纤维素纤维与纸浆的高粘合能力,降低了设备过滤的纸浆负荷,这提高了设备和方法的效率。按照本发明的方法具有如下优点,即,可以生产例如25g/m2及以下的非常轻的纤维材料,这种纤维材料具有高的强度并且因此可以从一个传送带移送到下一个传送带而不被损坏。
水刺加固装置构造用于相互加固、结合和/或结构化单个无纺织物或者多叠的纤维或者多个无纺织物。水刺加固装置的水刺头优选构造用于以40至400巴的压力将水喷射到纤维幅面上。借助于特别构造的喷嘴装置或与上部结构带相组合地,无纺织物的结构化和因此提供图案的表面是可能的,利用该上部结构带将纤维材料的幅面包围。替代地,加固和结构化也可以在具有拉紧的结构外壳的、未示出的锡林上进行,该结构外壳设置在烘干机上游。
给出一种非常灵活的设备,在该设备中可以将具有不同纤维长度和不同单位面积重量的不同纤维导入并且单独或者一起加工。斜网成形机和沿材料运输方向在下游设置的梳理机的布置结构节省了空间并且由于梳理机下方的输送带的引导可以轻易并且廉价地实现。输送带的一部分例如可以设置在覆盖的地下。
按照本发明的无纺织物包括湿铺的纤维材料,该湿铺的纤维材料由重量百分比70至95的纸浆和重量百分比30至5的溶剂纺丝纤维素纤维、例如Lyocell制成。湿铺的纸浆纤维与溶剂纺丝纤维素纤维的组合将无纺织物的湿强度提高了60%以上,因为以令人惊讶的方式,溶剂纺丝纤维素纤维的原纤维与短的纸浆纤维高度粘合。在此,通过溶剂纺纤维素纤维的吸水能力提供与纸浆的完美组合,以便能够作为卫生用品或尿布的中间层或底层实现高流体吸收作用。与现有技术的材料组合相比,溶剂纺丝纤维素纤维同样可以具有比通常使用的更短的纤维长度。已证实,在溶剂纺纤维素纤维的平均纤维长度为8至12mm,纤度为1.3至1.8dtex的情况下,非常适合用于湿法成网工艺。由于溶剂纺丝纤维素纤维与纸浆的高粘合能力,降低了设备过滤的纸浆负荷,这提高了设备和方法的效率。
优选地,可以将湿铺的纤维材料与另一种无纺织物的一层或双层结合,这种无纺织物包围湿铺的纤维材料作为表面层。在此,至少一种无纺织物构造为梳理机无纺织物,该梳理机无纺织物由重量百分比100的溶剂纺丝纤维素纤维、或者重量百分比100的粘胶纤维或者重量百分比100的溶剂纺丝纤维素纤维和粘胶纤维的混合物制成。第二无纺织物同样由重量百分比100的溶剂纺丝纤维素纤维、或者重量百分比100的粘胶纤维或者重量百分比100的溶剂纺丝纤维素纤维和粘胶纤维的混合物制成。溶剂纺丝纤维素纤维优选具有38-40mm的平均纤维长度和1.2-1.8dtex的纤度,由此将它们与湿法成网工艺中使用的溶剂纺丝纤维素纤维区分开来。粘胶纤维同样优选具有38-40mm的平均纤维长度和为1.2-1.8dtex的纤度。在前面描述的纤维材料9与由溶剂纺丝纤维素纤维制成的梳理机无纺织物15a的组合中另一个优点在于所生产的卫生用品的完全生物降解性。对于设备的操作者来说,根据粘胶纤维和/或Lyocell、Tencel、Cocel等的可用性和世界市场价格在具有相似特性的情况下可以进行成本优化,其方式为,所生产的、作为表面层包围纤维材料的无纺织物可以仅由溶剂纺丝纤维素纤维、或者仅由粘胶纤维、或者由两者的混合物制成。
附图说明
此外,以下与本发明的优选的实施例的描述一起共同借助于附图更详细地呈现改进本发明的措施。
图中:
图1示出按照本发明的设备和方法的第一实施方式;
图2示出按照本发明的设备和方法的第二实施方式。
具体实施方式
按照本发明的设备100包括至少一个斜网成形机1、至少一个沿织物幅面的运输方向在下游设置的用于引入另一织物幅面的设备、至少一个在下游设置的具有至少一个水刺头16的水刺加固装置和烘干机18。
斜网成形机1设置在环绕的网带10的下方。可以构造为连续带的网带10围绕各个辊12环绕运行并且具有倾斜的区段11,该区段沿网带的运行方向以一定角度升高。在倾斜的区段11的区域中,斜网成形机设置在网带10下方,网带10支撑在该斜网成形机的衬面2上。在衬面2下方设置至少一个抽吸区3,该抽吸区借助于未示出的泵被置于负压下。斜网成形机1可以具有多个抽吸区3,将这些抽吸区加载以不同的压力或者负压。负压源优选可以构造为可控制的/可调节的真空泵。
在所述实施例中,通过流浆箱8将至少一种纤维悬浮物提供到网带10上。纤维悬浮物除了水之外包含一定量的固体,这种固体又由纤维和其它填料构成。在多种纤维悬浮物的情况下,在它们之间设置未示出的薄片,利用这些薄片可以单独地或者总地改变纤维悬浮物的叠厚度(Schichtdicke)。因为所述薄片相互分隔开纤维悬浮物,因此将这些纤维悬浮物依次在斜网成形机1上排去水。以此防止纤维悬浮物的混合并且改善各个纤维材料叠的层纯度。通过与所述可控制的/可调节的真空泵连接的所述至少一个抽吸区,每叠纤维悬浮物可以经受单独的负压,以此可以处理在每种纤维悬浮物中水与纤维的不同的混合物。
在所述实施例中,纤维悬浮物由纸浆与重量百分比5至30的Lyocell组成。纸浆具有1-3mm的平均纤维长度和1.1-1.8dtex的纤度。Lyocell具有8-12mm的平均纤维长度和1.2-1.8dtex的纤度。与现有技术相比,可以通过Lyocell混合物来增大纤维材料9的抗拉强度。另一个优点是下降的过滤的纸浆负荷。以令人惊讶的方式,这在单位面积重量相同的情况下不是由于纸浆比例减少,而是在于Lyocell纤维和纸浆之间的粘合作用。与粘胶纤维相比,Lyocell纤维具有原纤维,短的纸浆纤维利用这些原纤维在水溶液中结合或者保持。
在一项实验中,重量百分比100的纸浆在单位面积重量25g/m2的情况下沿横向方向(CD)的抗拉强度为12N/5cm。在这里给出的所有强度值参照根据EDANA WSP 110.4(09)的测试。在重量百分比90的纸浆和重量百分比10的Lyocell的纤维混合物的情况下,强度平均增加到14N/5cm,最大增加到16N/5cm。在重量百分比80的纸浆和重量百分比20的Lyocell的纤维混合物的情况下,强度平均增加到18N/5cm,最大增加到20N/5cm。以有利的方式,混合物的增加局限于重量百分比70的纸浆和重量百分比30的Lyocell,因为纤维材料9不再具有必要的用于流体的吸收能力,该吸收能力在用作尿布垫或者卫生用品时是必需的。纤维材料9的干的幅面的单位面积重量优选可以为10至60g/m2。可以使用另一种溶剂纺丝纤维素纤维、例如Tencel来代替Lyocell。
液体和气体可穿透的网带10将纤维悬浮物输送到斜网成形机1上面的倾斜的区段11上。基于重力和作用到纤维悬浮物上的负压,将纤维悬浮物排去水,由此,在所述示例中由具有一层纤维的纤维材料9形成幅面。在抽吸区3下方,将白水6收集在筛箱5中并且抽出。纤维材料9的幅面在传送带10上沿箭头方向首先通过水平区段然后继续通过倾斜下降的区段运输。在倾斜下降的区段之后,将纤维材料9的幅面以其下侧移送到另一条环绕的传送带13上,该传送带作为连续传送带围绕至少两个辊14运行。
在图1的第一实施例中沿纤维材料9幅面的运输方向在设备100中设置梳理机15。梳理机15在空间上设置在传送带13上方,从而可以将湿铺的纤维材料9的幅面独立于梳理机15向具有至少一个水刺头16和在传送带13下面设置的抽吸装置17的水刺加固装置引导。换言之,在固定安装的梳理机15下方引导传送带13并且该传送带构造用于将纤维材料9的幅面直接从斜网成形机引导至水刺加固装置。在此,将纤维材料9相互加固,在烘干机18中烘干并且必要时在卷绕站20中卷绕。
梳理机15可以将经梳理的纤维的织物幅面、即梳理机无纺织物15a引入到设备100中。这在水刺加固装置之前进行,从而借助于水刺头16进行纤维材料9的幅面与梳理机无纺织物15a的结合。纤维材料9的幅面可以与由梳理机无纺织物15a构成的表面层通过水刺加固结合成多层无纺织物19并且在烘干机18中烘干并且必要时在卷绕站中卷绕。通常梳理机无纺织物15a可以由例如聚酯、粘胶纤维、棉毛混合物或人造和/或天然纤维的混合物构成。梳理机无纺织物15a的单位面积重量优选为20g/m2至60g/m2
以有利的方式,梳理机无纺织物由重量百分比100的粘胶纤维、或者重量百分比100的溶剂纺丝纤维素纤维例如Lyocell或Tencel、或者重量百分比100的两种纤维的混合物制成。这些可以用作纤维材料9的表面层的材料的优点在于在用作卫生用品时具有高吸收性和柔软的手感(柔软的牛仔布)。在前面描述的纤维材料9与由溶剂纺丝纤维素纤维制成的梳理机无纺织物15a的组合中,另一个优点在于所生产的卫生用品的完全生物降解性。对于设备的操作者来说,根据粘胶纤维和/或Lyocell、Tencel等的可用性和世界市场价格在具有相似特性的情况下可以进行成本优化,其方式为,经梳理的无纺织物15a可以仅由溶剂纺丝纤维素纤维、或者仅由粘胶纤维、或者由两者的混合物制成。在这里使用的Lyocell纤维优选具有38-40mm的平均纤维长度,纤度为1.2-1.8dtex。粘胶纤维同样优选具有38-40mm的平均纤维长度,纤度为1.2-1.8dtex。
梳理机无纺织物优选具有20g/m2的单位面积重量,从而经加固和烘干的无纺织物19具有优选45g/m2的单位面积重量。
根据所述实施例,所述设备构造用于可选地加工纤维材料9的幅面或梳理机无纺织物15a,或者将纤维材料9的幅面连同梳理机无纺织物15a一起加工。优选生产重量为45g/m2的双层无纺织物,其中,纤维幅面9的层由按重量百分比70至重量百分比95的纸浆和重量百分比30至重量百分比5的溶剂纺丝纤维素纤维制成。梳理机无纺织物的第二层15a可以由重量百分比100的溶剂纺丝纤维素纤维、重量百分比100的粘胶纤维、或者重量百分比100的溶剂纺丝纤维素纤维与粘胶纤维的混合物制成。
在图2中的实施例中,与图1的实施例相比,沿纤维材料9的幅面的运输方向在传送带13上游附加地设置具有辊23的退绕站24。退绕站24可以设置在斜网成形机1上游或者所述斜网成形机1下方(在地下),并且可以备选于或者附加于梳理机无纺织物15a将纤维织物幅面作为无纺织物24a引入到设备100中。代替退绕站24,在斜网成形机1上游也可以设置另一个梳理机,将该梳理机的梳理机无纺织物在斜网成形机1下方引入到设备100中。
与所述实施例中在图2中退绕站24的布置结构和传送带10的运行方向的示意图相反,退绕站24这样设置,使得将无纺织物24a在纤维材料9的幅面的堆置处和辊14之间放置在传送带13上。三层无纺织物19因此是可能的,其中,无纺织物24a和梳理机无纺织物15a形成纤维材料9的幅面的表面层。优选梳理机无纺织物24a同样由重量百分比100的粘胶纤维、或者重量百分比100的溶剂纺丝纤维素纤维、或者重量百分比100的两种纤维的混合物制成。溶剂纺丝纤维素纤维优选具有38-40mm的平均纤维长度,纤度为1.2-1.8dtex。粘胶纤维同样优选具有38-40mm的平均纤维长度,纤度为1.2-1.8dtex。
梳理机无纺织物优选具有20g/m2的单位面积重量,从而经加固和烘干的三层无纺织物19具有优选65g/m2的单位面积重量。
如果作为纤维材料9幅面的替代方案将无纺织物24a输送到设备100中,则也可以使用由薄纸或纸制成的无纺织物。无纺织物24a的单位面积重量优选为10g/m2至60g/m2
根据图2的这个实施例,该设备构造用于生产双层或三层的无纺织物19,该无纺织物可以由纤维材料9的幅面连同在上面的梳理机无纺织物15a和可能在底面的梳理机无纺织物24a制成。在此,设备100这样配置,使得不存在传送带的重叠或者平行运行,在这种传送带之间由于速度差可能拉伸无纺织物。
附图标记:
100 设备
1 斜网成形机
2 衬面
3 抽吸区
5 抽吸箱
6 白水
8 流浆箱
9 纤维材料
10 网带
11 倾斜的区段
12 辊
13 传送带
14 辊
15 梳理机
15a 梳理机无纺织物
16 水刺头
17 抽吸装置
18 烘干机
19 无纺织物
23 辊
24 退绕站
24a 无纺织物

Claims (22)

1.设备(100),包括
斜网成形机(1),构造用于将湿铺的纤维材料(9)的幅面放置在环绕的第一传送带(10)上,
另一个传送带(13),构造用于从环绕的第一传送带(10)接收湿铺的纤维材料(9)的幅面,
沿材料运输方向设置在下游的梳理机(15),构造用于将梳理机无纺织物(15a)引入到设备(100)中,
沿材料运输方向设置在下游的、具有至少一个水刺头(16)的水刺加固装置,构造用于将单个纤维幅面或者多个纤维幅面加固和/或结合和/或结构化,
以及沿材料运输方向设置在下游的烘干机(18),
其中,所述设备构造用于可选地生产单层、双层或三层的无纺织物(19)。
2.根据权利要求1所述的设备,其特征在于,所述设备(100)构造用于借助于所述至少一个传送带(13)将纤维材料(9)的幅面直接输送至水刺加固装置。
3.根据权利要求1或2所述的设备,其特征在于,单层的无纺织物可选地由纤维材料(9)的幅面或者梳理机无纺织物(15a)构成。
4.根据权利要求2所述的设备,其特征在于,用于运输纤维材料(9)的幅面的传送带(13)至少部分地设置在梳理机(15)下方。
5.根据上述权利要求之一所述的设备,其特征在于,沿纤维材料(9)的幅面的运输方向在斜网成形机(1)上游或者下方设置退绕站(24)或者另一个梳理机,利用所述退绕站或者另一个梳理机,代替纤维材料(9)的幅面,将另一个第一无纺织物(24a)引入到所述设备中。
6.根据权利要求1至5之一所述的设备,其特征在于,所述设备(100)构造用于生产单层的无纺织物(19),所述单层的无纺织物由纤维材料(9)的幅面或者由梳理机无纺织物(15a)或者由无纺织物(24a)构成。
7.根据权利要求1至6之一所述的设备,其特征在于,所述设备(100)构造用于生产双层的无纺织物(19),所述双层的无纺织物由纤维材料(9)的幅面与梳理机无纺织物(15a)或者无纺织物(24a)构成、或者由梳理机无纺织物(15a)与无纺织物(24a)构成。
8.根据权利要求1至7之一所述的设备,其特征在于,所述设备(100)构造用于生产三层的无纺织物(19),所述三层的无纺织物由纤维材料(9)的幅面与梳理机无纺织物(15a)和无纺织物(24a)构成。
9.用于生产单层、双层或三层的无纺织物(19)的方法,其中,湿铺的纤维材料(9)的幅面单独地或者与梳理机无纺织物(15a)和/或无纺织物(24a)一起地作为单层至三层的无纺织物(19)输送给水刺加固装置以用于结合和/或加固和/或结构化并且然后烘干。
10.根据权利要求9所述的方法,其特征在于,纤维材料(9)由按重量百分比70至重量百分比95的纸浆和重量百分比30至重量百分比5的溶剂纺丝纤维素纤维构成,优选由重量百分比80的纸浆和重量百分比20的溶剂纺丝纤维素纤维构成,特别优选由重量百分比90的纸浆和重量百分比10的溶剂纺丝纤维素纤维构成。
11.根据权利要求9所述的方法,其特征在于,梳理机无纺织物(15a)由重量百分比100的溶剂纺丝纤维素纤维、或者重量百分比100的粘胶纤维或者重量百分比100的溶剂纺纤维素纤维和粘胶纤维的混合物构成。
12.根据权利要求9所述的方法,其特征在于,无纺织物(24a)由重量百分比100的溶剂纺纤维素纤维、或者重量百分比100的粘胶纤维或者重量百分比100的溶剂纺丝纤维素纤维和粘胶纤维的混合物构成。
13.根据权利要求9至12之一所述的方法,其特征在于,水刺加固装置构造用于将纤维材料(9)在40巴至400巴的压力的情况下单独或者与一种或两种无纺织物(15a、24a)一起加固、结合和/或结构化。
14.无纺织物,包括湿铺的纤维材料(9),所述纤维材料由重量百分比70至重量百分比95的纸浆和重量百分比30至重量百分比5的溶剂纺丝纤维素纤维构成。
15.根据权利要求14所述的无纺织物,其特征在于,湿铺的纤维材料(9)由重量百分比80的纸浆和重量百分比20的溶剂纺丝纤维素纤维制成并且沿横向方向(CD)具有至少18N/5cm的强度。
16.根据权利要求14至15之一所述的无纺织物,其特征在于,湿铺的纤维材料(9)由重量百分比90的纸浆和重量百分比10的溶剂纺丝纤维素纤维制成并且沿横向方向(CD)具有至少16N/5cm的强度。
17.根据权利要求14至16之一所述的无纺织物,其特征在于,纸浆的平均纤维长度为1-3mm,纤度为1.1-1.8dtex。
18.根据权利要求14至16之一所述的无纺织物,其特征在于,溶剂纺丝纤维素纤维的平均纤维长度为8-12mm,纤度为1.2-1.8dtex。
19.根据权利要求14所述的无纺织物,其特征在于,将湿铺的纤维材料(9)与至少一层表面层结合,所述表面层由重量百分比100的溶剂纺丝纤维素纤维、或者重量百分比100的粘胶纤维或者重量百分比100的溶剂纺丝纤维素纤维或者粘胶纤维的混合物构成。
20.根据权利要求19所述的无纺织物,其特征在于,由溶剂纺丝纤维素纤维或者粘胶纤维制成的纤维的平均纤维长度为38-40mm,纤度为1.2-1.8dtex。
21.根据权利要求20所述的无纺织物,其特征在于,一层或多层表面层构造为梳理机无纺织物(15a)和/或无纺织物(24a)。
22.根据权利要求14至21之一所述的无纺织物,根据权利要求9至13之一所述的方法生产。
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