CN101372275A - 具有包埋的铝层的管材用多层层合体、其制备方法以及由此制备的管材 - Google Patents
具有包埋的铝层的管材用多层层合体、其制备方法以及由此制备的管材 Download PDFInfo
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Abstract
本发明涉及一种具有包埋的铝层(50)的管材用多层层合体,其中铝层(50)两侧由经取向的共挤出的保护层(30)包围,该保护层(30)各自通过中间层材料(40,40’)与铝层(50)接合。此外,本发明还涉及这种层合体的制备以及由这种层合体制备的管材。
Description
技术领域
本发明涉及根据权利要求1、13和17前序部分的具有包埋的铝层的管材用多层层合体、其制备方法以及由此制备的管材。
背景技术
在包装工业领域中,需要多层层合体。其视层合体的厚度而定具有柔韧至相对形状稳定的性能并且尤其用于管材、包装袋和其它包装的制备。具有包埋的铝箔的多层层合体特别适用于含香味的物质的包装。这基于,在层合体中存在的铝箔对于许多物质,尤其是挥发性物质起隔离层的作用。但已证明有问题的是,铝层被侵蚀性的物质,例如酸和侵蚀性的有机物质进攻,这样就有必要将铝层相对于管材的内容物隔离。这目前为止通过如下方法实现:包封铝层的层具有高的材料强度和相应具有的厚度使得每种情况下的侵蚀性的物质必须越过较长的扩散路径。此外,铝层相对于包装内容物在必要时通过附加的阻挡层,例如由乙烯-乙烯醇共聚物(EVOH)构成的阻挡层而隔离。
但使用这种厚层合体层的必要性导致,由于单层厚度的累积,多层层合体变得非常厚,并且特别也由于大量的所用材料,多层层合体变得昂贵。
例如,使用的层合体的厚度,例如在牙膏管领域,在四分之一毫米数量级内变化,这导致密封区域的厚度是半毫米。在所有的管材领域中,这种高的层厚度在美学上和操作技术上都有负面影响,所述领域中层合体重叠是必要的。这种重叠例如在由平面层合体下料制备管状搭接-密封体时是必要的。
目前为止的层合体的缺点还在于脱层的危险,所用材料相对于相应管材的内容物越敏感,所述危险自然就越大。
此外,目前为止已知的层合体的触感也不够好,这主要同样是因为目前为止已知的层合体的必需的高的层厚度,因为这总是带来由这样的层合体制备的物品的一定的刚度。
发明内容
本发明的任务在于提供具有包埋的铝层的多层层合体,其制备以及由此制备的包装,其在实现单层层合体层较薄的层厚度的同时,实现了改进的阻挡性能,其可有利地制备并且单个能够改进地印刷,此外提供改进的触感和改进的环境相容性。
本发明的任务通过根据权利要求1的多层层合体,通过根据权利要求13的这种层合体的制备方法以及通过根据权利要求17的一种由这种层合体制备的管材而解决。
本发明的任务尤其通过一种具有包埋的铝层的管材用多层层合体而解决,其中铝层两侧由一种经取向的共挤出的保护层(Deckschicht)包围,所述保护层各自通过中间层材料与铝层接合。
本发明的主要构思在于,铝层由中间层材料包围并且通过中间层材料与经取向的共挤出的保护层接合。因此,在机械方面和鉴于扩散性物质方面两者,铝层被中间层材料和经取向的共挤出的保护层两者保护,因为其必须由面向管材内侧的层合体侧首先通过经取向的共挤出的保护层扩散,接下来通过中间层材料扩散,以达到铝层。
经取向的共挤出的保护层,与中间层材料完全一样,在铝层两侧存在,使得铝层由随后的管内部和管外部两者保护以免侵蚀性物质进入。
按照本发明,共挤出的保护层至少为两层构造,并包括至少一个经取向的聚合物层和至少一个,必要时两个或更多个覆盖层。也称为皮层的覆盖层包围聚合物层并自身能够在其背向聚合物层的侧面上印刷。此外,这些覆盖层形成为可密封形式以便这种层合体的搭接-密封或翼型(Fin)-密封式密封毫无困难地是可能的。
按照本发明,保护层是共挤出的,其中将聚合物层和覆盖层在操作过程中挤出并且接合。在施加所述一个或多个覆盖层后,将共挤出的保护层特别沿双轴方向拉伸,以便在拉伸过程后整个保护层都经取向。这也涉及覆盖层。
按照本发明,面向管材外侧的中间层材料A至少为单层构造,但优选是多层构造,特别是一至三层构造并且择一或组合地包括第一、第二和第三接合层。
面向管材内侧的中间层材料I至少为单层构造,优选多层构造,特别是一至五层构造,其中的一至三层择一地或组合地具有所述第一、第二和/或第三接合层的材料。
此外,按照一种实施方式,面向管材内侧的中间层材料I包括至少一个阻挡层,其在至少一侧具有粘附层,特别是粘合剂层。通过该粘附层保证阻挡层被最优地整合入中间层材料I中并且具有与包围阻挡层的层的最优接合。
按照本发明使用的材料在下面的表格中列出并且可以在各层中在每种情况下单独或组合存在。
单层各自的层厚可见下表:
层 | 层厚 | 优选层厚 | 特别优选的层厚 |
覆盖层(10) | 0.5μm-10μm | 0.8μm-6μm | 1μm-2.5μm |
经取向的聚合物层(20) | 10μm-100μm | 15μm-80μm | 30μm-50μm |
铝层(50) | 3μm-70μm | 8μm-35μm | 10μm-25μm |
第一接合层(43) | 5μm-140μm | 8μm-95μm | 10μm-50μm |
第二接合层(45) | 5μm-140μm | 8μm-95μm | 10μm-50μm |
第三接合层(47) | 5μm-140μm | 8μm-95μm | 10μm-50μm |
粘附层(60) | 1.5μm-25μm | 3μm-18μm | 4.5μm-12μm |
阻挡层(70) | 3μm-60μm | 3.8μm-40μm | 4μm-28μm |
对于面向管材内侧的侧面和面向管材外侧的侧面,都可以通过多层的中间层材料构造将材料组合,所述材料有利的性能相加互补并以这种方式提供中间层材料,其一方面具有高的机械稳定性和高的化学稳定性。特别与此相关地可提及在高抗拉强度的同时高可延伸性,相对于扩散的高抵抗性以及在良好的触感的同时达到良好的把握性的可能性。
此外,通过设计按照本发明的经取向的共同挤出的保护层提供了良好的外部稳定性及同时良好的密封性以及由此得到的密封物的高稳定性,并因此向由此制备的管材提供优化的可印刷性。
按照本发明,印刷可以在面向管材外侧面的外部覆盖层上进行。此外还可以借助于所谓的“反转印刷”将面向管材外侧面或管材内侧面的内覆盖层在其面向中间层材料A的侧面上印刷。这是可行的,因为按照本发明,布置在覆盖层之间的聚合物层可以构造成透明的。
对于希望应用“反转印刷”的情况,在布置在内覆盖层上的着色层和所述中间层材料A之间优选设计另一个粘附层,以保证在中间层材料上着色层的良好粘附。通过使用按照本发明的材料,可以产生在给定厚度范围内的层厚并且以这种方式可以实现与现有技术相比明显更薄的层合体厚度,其中多层层合体同时具有改进的阻挡性能以及优化的机械和化学性能。
按照本发明的中间层材料的制备通过共同挤出构成中间层材料的层而进行,其中层合体可在串联式挤出过程中制备,在此在第一挤出步骤中铝层的一侧被涂覆,在第二挤出步骤中铝层的另一侧被涂覆。这些挤出步骤可以作为共挤出步骤实施,其中层的多层复合体同时被挤出。
此外,按照本发明的任务通过一种制备具有包埋的铝层的管材用多层层合体的方法解决,其中铝层两侧都涂覆有中间层材料以及各自涂覆有共挤出的保护层。经取向的共挤出的保护层自身通过至少一侧的涂覆,特别是共挤出具有覆盖层的聚合物层而制备。优选聚合物层两侧都涂覆有覆盖层。在具有各自相关的覆盖层的聚合物层涂覆后,将由此产生的保护层拉伸,尤其双轴拉伸。
此外,将构成中间层材料的层共挤出和/或直接相继地挤出以形成层合体。
另外,按照本发明的任务也通过管材解决,该管材由根据上面详述的层合体制备。
本发明的进一步实施方案由从属权利要求中得到。
下文借助实施例描述本发明,所述实施例借助附图详细说明。其中:
附图说明
图1显示按照本发明的层合体的第一实施方案的图示;
图2显示按照本发明的层合体的另一实施方案的图示;
图3显示按照本发明的层合体的另一实施方案的图示;
图4显示按照本发明的层合体的另一实施方案的图示;
图5至图7显示按照本发明的层合体的另外的实施方案的图示,其依照按照图1、图2和图4的实施方案,然而具有附加的阻挡层。
具体实施方式
在下面的描述中对于相同的和作用相同的部件使用相同的附图标记。
图1显示按照本发明的层合体的最简单形式的图示,其中,在形成管材的情况下,铝层50在这样的管材的外侧方向用中间材料层A 40涂覆,中间材料层A40之后是共挤出的保护层30,该保护层自身由一个中央的经取向的聚合物层20构成,该聚合物层20两侧由覆盖层10覆盖。在推想的管材内侧方向上,在铝层50之后是中间层材料I 40’,其又与覆盖层10邻接,该覆盖层10自身邻近经取向的聚合物层20而布置。作为邻接该聚合物层20的层又设置一个覆盖层10。因此,这种按照本发明的层合体鉴于各布置的层而关于铝层50成对称构造。按照这个实施方案,铝层的层厚为12μm,而中间层材料A 40的层厚为40μm。中间层材料I 40’的厚度为50μm。所述两个位于外部的共挤出保护层30各自的层厚为30μm,其中经取向的聚合物层20分摊22μm,各覆盖层10各分摊2μm。
图2与图1的不同如下:两个中间层材料A和I不仅仅由第一接合层43构成,而是中间层材料A 40和中间层材料I 40’都由第一接合层43和第二接合层45制备。这里第二接合层45的层厚各自为34μm,而两个第一接合层43的层厚均为14μm。
根据图3,中间层材料I 40’再次划分成层厚为14μm的第一接合层43,层厚为17μm的第二接合层45,层厚为30μm的第三接合层47。因此得到中间层材料I 40’的总层厚仅为65μm,这有助于按照本发明的层合体的明显改进的柔韧性,也有助于在非常高阻挡性能的同时更好的密封性。
按照图4的实施方案基本上相应于按照图3的实施方案,但区别在于,外部中间材料层A 40也制备为由如下组成的三层形式:第一接合层43、第二接合层45和第三接合层47。
图5、6和7鉴于其关于铝层50的外部结构而相应于按照图1、2和4的实施方案。层合体的内部结构如下改变:向构成中间层材料I 40’的第一接合层43中整合阻挡层70,其两侧都被粘附层60包围。
作为用于所说明的层的材料,考虑上文所说的材料,其中应强调的是邻近的层优选含有不同比例的特定物质。
这里应指出的是,所有上面描述的部件自身单独考虑并且以任何组合,特别是在附图中描述的细节,被要求视为对本发明而言重要的。其改进对本领域技术人员而言是熟悉的。
附图标记列表
10 覆盖层
20 经取向的聚合物层
30 共挤出的保护层
40 中间层材料A
40’中间层材料I
43 第1接合层
45 第2接合层
47 第3接合层
50 铝层
60 粘附层
70 阻挡层
Claims (17)
1.具有包埋的铝层(50)的管材用多层层合体,其特征在于,铝层(50)两侧由经取向的共挤出的保护层(30)包围,该层各自通过中间层材料(40,40’)与铝层(50)接合。
2.权利要求1的多层层合体,其特征在于,共挤出的保护层(30)至少为两层形式并且包括至少一个经取向的聚合物层(20)以及至少一个覆盖层(10)。
3.前述权利要求中任一项的多层层合体,其特征在于,共挤出的保护层(30)被拉伸,特别是双轴拉伸。
4.前述权利要求中任一项的多层层合体,其特征在于,面向管材外侧的中间层材料A(40)至少是单层形式,优选多层形式,特别是1至3层形式,并且择一或组合地具有第一接合层(43)、第二接合层(45)和第三接合层(47)。
5.前述权利要求中任一项,特别是权利要求3的多层层合体,其特征在于,面向管材内侧的中间层材料I(40’)至少是单层,优选多层,特别是1至5层形式,其中的1至3层择一或组合地具有第一接合层(43)、第二接合层(45)和/或第三接合层(47)的材料。
6.前述权利要求中任一项的多层层合体,其特征在于,中间层材料I(40’)包括至少一个阻挡层(70),其至少一侧具有粘附层(60),特别是粘合剂层。
7.前述权利要求中任一项的多层层合体,其特征在于,各个层在每种情况下单独或组合地具有按照下表的材料:
8.前述权利要求中任一项的多层层合体,其特征在于,各个层具有按照下表的厚度:
9.前述权利要求中任一项的多层层合体,其特征在于,面向管材外侧的外部覆盖层(10)是可印刷的。
10.前述权利要求中任一项的多层层合体,其特征在于,面向管材外侧的内部覆盖层(10)在其面向中间层材料A(40)的侧面上是可印刷的。
11.权利要求10的多层层合体,其特征在于,在布置在内部覆盖层(10)上的着色层和所述中间层材料A(40)之间设置粘附层(60)。
12.前述权利要求中任一项的多层层合体,其特征在于,构成中间层材料(40,40’)的层(43、45、47、60、70)经挤出,特别是借助于串联式挤出制备。
13.制备具有包埋的铝层(50)的管材用多层层合体的方法,其特征在于,将铝层(50)两侧都涂覆中间层材料(40)并且各自涂覆共挤出的保护层(30)。
14.权利要求13的方法,其特征在于,共挤出的保护层(30)通过至少一侧涂覆,特别是共挤出具有覆盖层(10)的聚合物层(20)而制备。
15.前述权利要求13或14的方法,其特征在于,将共挤出的保护层(30)拉伸,尤其双轴拉伸。
16.前述权利要求13或14的方法,其特征在于,将构成中间层材料(40,40’)的层(43、45、47、60、70)尤其共挤出,和/或直接相继地挤出以形成层合体。
17.管材,其由按照前述权利要求中任一项的层合体制备。
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DE102007023221.9 | 2007-05-18 | ||
DE102007027873.1A DE102007027873B4 (de) | 2007-05-18 | 2007-06-18 | Mehrschichtiges Laminat für Tuben mit eingebetteter Aluminiumschicht, Verfahren zur Herstellung und daraus hergestellte Tube |
DE102007027873.1 | 2007-06-18 |
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-
2007
- 2007-06-18 DE DE102007027873.1A patent/DE102007027873B4/de active Active
-
2008
- 2008-05-15 US US12/121,708 patent/US20080286512A1/en not_active Abandoned
- 2008-05-15 MX MX2008006316A patent/MX2008006316A/es active IP Right Grant
- 2008-05-16 BR BRPI0801988A patent/BRPI0801988B8/pt active IP Right Grant
- 2008-05-16 CN CN2008101446103A patent/CN101372275B/zh active Active
- 2008-05-16 RU RU2008119274/12A patent/RU2457989C2/ru active
- 2008-05-16 KR KR1020080045518A patent/KR20080101769A/ko active Search and Examination
-
2013
- 2013-03-13 KR KR1020130026614A patent/KR20130042517A/ko not_active Application Discontinuation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103249550A (zh) * | 2010-12-06 | 2013-08-14 | 高露洁-棕榄公司 | 具有嵌段共聚物的增强的弹性的层压材料管 |
CN106103073B (zh) * | 2014-05-30 | 2019-10-18 | 阿贝尔服务 | 高度装饰的管,特别是高度装饰的层压管 |
CN104455788A (zh) * | 2014-12-08 | 2015-03-25 | 上海三樱包装材料有限公司 | 多层复合无缝铝塑管及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
MX2008006316A (es) | 2009-03-03 |
BRPI0801988B1 (pt) | 2019-01-22 |
US20080286512A1 (en) | 2008-11-20 |
BRPI0801988B8 (pt) | 2019-05-21 |
BRPI0801988A2 (pt) | 2009-01-13 |
DE102007027873A1 (de) | 2008-11-20 |
DE102007027873B4 (de) | 2019-08-01 |
KR20130042517A (ko) | 2013-04-26 |
CN101372275B (zh) | 2012-05-23 |
RU2008119274A (ru) | 2010-01-27 |
RU2457989C2 (ru) | 2012-08-10 |
KR20080101769A (ko) | 2008-11-21 |
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