CN102341313A - 容器的复合覆盖物 - Google Patents
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Abstract
本发明提供了复合覆盖物和使用该覆盖物的可重新封闭的容器。在一个通常的实施例中,复合覆盖物包括柔性盖和固定地附接至柔性盖的上盖边沿。柔性盖包含柔性层、金属层和密封剂层。可在柔性层和金属层中的至少一者上附接突出部以提供用于打开容器的方法。
Description
相关申请的交叉引用
本申请要求2009年3月13日提交的序列号为61/210067的美国临时申请的优先权,该美国临时申请中公开的内容通过引用结合入本文。
技术领域
本发明总体上涉及容器和容器覆盖物,特别是涉及用于容器的复合覆盖物和使用该覆盖物的可重新封闭的容器。
背景技术
目前的热成形塑料容器具有附接至容器的开口的膜材料,从而保护容器内的产品免于被空气污染或过度受潮。就现有的膜和上盖而言,使用者必须首先去掉上盖,将上盖放到一边,然后去掉膜从而获得容器内的产品。在首次打开容器之后,如果使用者想重新使用容器中的产品,则需要在存储期间将分离的上盖置于容器上。然而,没有膜的存在,上盖不可能充分密封容器内的产品,这可导致存储期间产品的污染。
本领域已知多种用于容器的覆盖物。例如,US2006266751A1公开了一种用于选择性覆盖装有优质物品的可微波加热的容器的上盖。该上盖包括板、从板延伸出来的颈部和与颈部径向间隔开的边沿。该边沿限定出至少两个厚度减少的且彼此间隔开的区域,这两个区域构造为当从容器上去掉上盖时容许边沿弯曲。US2002190067A1公开了用于容器的上盖,该上盖用于在运输、存储和加热过程中保护容器的盖部。该上盖能够容易地从容器上释放而不需要过分加压。US6478218和US6829874公开了一种用于真空包装产品的管状容器,该容器包括固定在管状容器的至少一个相对端上的上盖,该上盖限定出在应用真空之前,用于朝向容纳在管状容器中的产品向内偏压膜式柔性盖的偏压部件。US20060102583A1公开了一种安装在鼓形容器上的用于封闭的整体密封盖,该整体密封盖具有环状侧壁、环状边沿、圆形上板和密封唇缘。US20080314916A1公开了一种用于包装食品的容器的上盖。该上盖具有壁,壁的端部以远离上表面的方向向下延伸,以便与面向边沿的顶表面的外部接合。US20070262077A1公开了一种用于容器的过盈配合盖,该过盈配合盖具有圆环,在去除膜之后,圆环的外表面的直径的尺寸设计成与容器内壁过盈配合。US7394383公开了一种用于封闭容器的上盖,该上盖具有熔入按钮状部件的顶表面内的装饰薄膜。然而,这些参考文献并没有公开使用较少的材料并且确保容器可以被重新密封的复合覆盖物。因此,存在对于在使用时能够容易地重新封闭并且使污染最小化的用于容器的新型覆盖物和使用该覆盖物的新型容器的需求。
发明内容
本发明提供了复合覆盖物和使用该覆盖物的可重新封闭的容器。所述复合覆盖物包括柔性盖和固定地(例如永久地/不能被去除地)附接至柔性盖的上盖边沿。所述柔性盖包括柔性层、金属层和密封剂层。可在柔性层和金属层中的至少一者上附接突出部。所述突出部提供能够容易地打开容器的方法。
在一个实施例中,所述复合覆盖物包括将柔性层附接至金属层的第一粘合剂。所述复合覆盖物还可以包括将密封剂层附接至金属层的第二粘合剂。所述第二粘合剂与所述第一粘合剂相比形成较弱的粘结。
在一个实施例中,所述柔性层包括例如聚酯、聚丙烯、纸或者它们的组合之类的材料。所述金属层可以包括例如铝箔、锡箔或者它们的组合之类的材料。所述密封剂层可以包括例如聚丙烯、聚苯乙烯、聚乙烯、聚酯、聚乳酸或它们的组合之类的材料。
在一个实施例中,所述上盖边沿包括例如聚丙烯、聚苯乙烯、聚乙烯、聚酯、聚乳酸或者它们的组合之类的材料。
所述上盖边沿可以进一步包括突出部。该突出部可以具有凸起、槽、隆起部、条纹或者其它相似特征,以使得当拉动突出部时可以更容易地抓持突出部。所述突出部中也可以具有一个或多个通常为孔形式的开口,以便于打开或存放(例如通过悬挂)覆盖物或包括覆盖物的容器。
在一个实施例中,所述上盖边沿包含容许使用盖的容器被堆叠的特征。在一个实施例中,所述上盖边沿包括位于上盖的上板中的凹部,该凹部与基部容器或托盘上的底板的几何形状相配合和/或互锁。这使得底板上的阶梯式肩部或平台的结构被配装到上盖的顶部中心板的凹入区域中。其它的这种堆叠结构是本领域技术人员已知的。
在另一个实施例中,本发明提供了一种包括柔性盖的可重新封闭的容器,所述柔性盖包括柔性层、金属层和密封剂层。一上盖边沿永久地附接至复合覆盖物。所述柔性盖可去除地附接至容器。所述容器可以包括例如金属、聚丙烯、聚苯乙烯、聚乙烯、聚酯、聚乳酸或它们的组合之类的材料。
在一个替代实施例中,本发明提供了一种用于制造可重新封闭的容器的方法。该方法包括提供包含柔性层、金属层和密封剂层的柔性盖,将上盖边沿永久地附接至柔性盖从而形成复合覆盖物,以及将复合覆盖物密封在容器的开口上,该容器优选地为已被填充的容器。
本发明的一个优点是提供了改进的可重新封闭的容器。本发明的另一个优点是提供了具有可容易地重新密封的盖的容器。本发明的再一个优点是提供了制造成本降低的容器。本发明的又一个优点是提供了制造时间缩短的容器。
根据后续对本发明的详细说明和附图,本文描述的附加特征和优点将显而易见。
附图说明
图1示出了本发明的实施例中的柔性盖、上盖边沿和容器的分解立体图;
图2示出了本发明的实施例中的柔性盖、上盖边沿和容器附接在一起的立体图;
图3示出了图1的柔性盖的沿III-III的剖面图。
具体实施方式
本发明提供了复合覆盖物和使用该复合覆盖物的可重新封闭的容器。本发明的实施例中的复合覆盖物省去了使消费者获取存储在可重新封闭的容器中的产品的一个步骤。一旦消费者从容器上去除复合覆盖物,消费者就可以直接获取产品。复合覆盖物可以被再应用到容器上以重新封闭容器并存储产品以供随后使用。另外,本发明简化了可重新封闭的容器的制造过程。
本发明与常规覆盖物相比具有多个优点。本发明的覆盖物主要是盖和上盖的结合,从而在处理容器时消除了对于下游加盖系统的需求。在杀菌(retorting,蒸馏)之后,通常的生产线需要使用加盖和盖供给系统。这种附加设备需要操作员,引起持续的维护成本,使设备损耗,占用宝贵的场地空间,以及导致伴随的效率低下。本发明通过减少设备操作而节省能源。类似地,与以前的覆盖物相比,本发明节省了用于生产覆盖物的大量材料。以前的覆盖物通常具有被箔完全覆盖的固体塑料盖。本发明仅使用塑料的边沿,因此节省了制造盖所需的大部分材料。这意味着本发明具有资源优势或减少浪费的优势,因为相比于上盖与以前的密封封闭件的结合,本发明的盖与上盖的结合使用较少的材料。另外,需要处理的材料也较少。
在图1-2示出的通常实施例中,本发明提供了一种复合覆盖物10,该复合覆盖物10包括柔性盖20和固定地附接至柔性盖20的上盖边沿30。复合覆盖物10可去除地附接至容器40。复合覆盖物10可为各种构造成能够附接至容器40的顶部的合适的形状(例如方形、圆形、多边形)。尽管图1示出的上盖边沿30与柔性盖20分离,实际上,上盖边沿30永久地附接至柔性盖20,并且当从容器40上去除复合覆盖物10时上盖边沿30不与柔性盖20分离。
复合覆盖物10可以提供容器40的气密封闭,以便保护容器40内的产品。复合覆盖物10可以采用任何合适的热致密封方法热密封至容器40,从而在容器40周围提供紧密密封。合适的热致密封方法包括压力下的连续热密封方法,感应密封方法,射频密封方法、激光致密封方法或它们的组合。复合覆盖物10可以包括下面更加详细描述的剥落特征。
容器40可以为任何合适的形状(例如具有圆形或方形边沿的碗形)以便存储产品。容器40的基部或底部可以为例如方形的、圆形的和多边形的。容器40可以由例如金属(例如铝、钢、锡等)、聚丙烯、聚苯乙烯、聚乙烯、聚酯、聚乳酸或它们的组合之类的材料构成。
上盖边沿30构造和布置成能够可去除地附接至容器40的凸缘或边沿42。上盖边沿30的形状可以设计为与边沿42的外形近似,以便上盖边沿30可以在容器40的边沿42上形成扣合。上盖边沿30可以由例如聚丙烯、聚苯乙烯、聚乙烯、聚酯、聚乳酸或它们的组合之类的可模压材料构成。可以采用注模技术制造上盖边沿30。
上盖边沿30可以是中空的,从而形成围绕柔性盖20的外部环状物,以便可以观察到柔性盖20的中央。上盖边沿30可以直接成型在柔性盖20上从而形成单一复合覆盖物10。如果所有的材料都由可杀菌级树脂构成,则可以对复合覆盖物10进行杀菌。由于用于容器40的覆盖物为单一复合覆盖物10,所以能够获得更快的制造速度。另外,上盖边沿30的设计包括可堆叠特征以便类似的可重新封闭的容器可以彼此堆叠。在另一个实施例中,上盖边沿30的中央不是空的。
柔性盖20可以由热成形的刚性塑料或柔性塑料或者例如铝箔的金属或层压塑料膜的组合制成。如图3的实施例所示,柔性盖20包括柔性层50、金属层52和密封剂层54。柔性层50可以由例如聚酯、聚丙烯、纸或者它们的组合之类的材料构成。金属层52可以由例如铝箔、锡箔或者它们的组合之类的材料构成。密封剂层54可以由例如聚丙烯、聚苯乙烯、聚乙烯、聚酯、聚乳酸或者它们的组合之类的材料构成。柔性盖20的顶部还可以包含能够基于广告的目的而被印刷的介质。
柔性盖20可以包括将柔性层50附接至金属层52的第一粘合剂56。柔性盖20还可以包括将密封剂层54附接至金属层52的第二粘合剂58。第二粘合剂58与第一粘合剂56相比可形成较弱的粘结。在一个替代实施例中,第二粘合剂58可形成与第一粘合剂56具有类似强度的粘结。
用于第一粘合剂56和第二粘合剂58的基材可以是异氰酸酯封闭的氨基甲酸酯预聚物。第一粘合剂56可以与例如甲苯二异氰酸酯的固化剂混合从而使粘合剂活化。第二粘合剂58可以与例如二甲苯二异氰酸酯或异佛尔酮二异氰酸酯之类的固化剂混合。
复合覆盖物10能够可去除地附接至容器40的边沿42。例如,柔性盖20的密封剂层54可以热密封于容器40的边沿42。复合覆盖物10设计成使得第二粘合剂58与第一粘合剂56相比形成较弱的粘结。当从容器40的顶部去除复合覆盖物10时,金属层52在第二粘合剂58处与密封剂层54分离。结果是,当从容器40上剥离或去除复合覆盖物10时,密封剂层54仍保留在边沿42上。
在另一个实施例中,柔性盖20的密封剂层54能够例如通过使用粘合剂或较低的热密封温度可释放地密封于容器40的边沿42。复合覆盖物10设计成使得第二粘合剂58形成与第一粘合剂56具有类似强度的粘结,同时第一粘合剂56和第二粘合剂58的粘结均强于密封剂层54和边沿42之间的粘结。当从容器40的顶部去除复合覆盖物10时,密封剂层54与边沿42分离。结果是,当从容器40上剥离或去除复合覆盖物10时,密封剂层54仍为复合覆盖物10的一部分。
突出部60可以附接至柔性层50和金属层52中的至少一者上。消费者可以拉动突出部60从而开始从容器40上去除复合覆盖物10。突出部60可以与该突出部60附接至其上的层(例如柔性层50/金属层52)由相同的材料制成并且与所述层一体形成。替代地,突出部60与该突出部60附接至其上的层可以由不同材料制成。在这种情况下,突出部60可以通过例如粘合剂或热焊接之类的合适的附接方式附接在层上。如图1所示,突出部60可以包括抓持元件62以便消费者能够抓持以有助于去除复合覆盖物10。
在一个实施例中,上盖边沿30可以包括能够被破坏的易折(frangible)部分32。当消费者拉动突出部60时,易折部分32的破坏可以被用于提供上盖边沿30从向下弯曲位置(参见图1)至向上弯曲位置(未示出)的重新定位。另外,易折部分32的破坏还可用于识别复合覆盖物10和容器40之间的密封已经被破坏。在一个替代实施例中,上盖边沿30可以包括突出部(未示出)。
通常地,可以在容器40中放置任何适当的产品。然后,可以将复合覆盖物10密封在容器40上。由于复合覆盖物10包括将容器40的开口和可重新封闭的上盖边沿30密封为单件的柔性盖20,所以可以简化可重新封闭的容器的制造过程。例如,一种两步骤包装过程包括,用于将膜密封在容器的开口上的步骤,该容器优选为已被填充的容器。第二步骤包括将上盖应用到密封的容器上。本发明的实施例容许这两个步骤在生产线上合并为一个操作。这容许用于生产容器的制造操作速度更快。复合覆盖物还可以去除对下游后杀菌加盖系统(post retort capping system)的需求。
当制造本发明的实施例的可重新封闭的容器时,通过减少制造过程中的步骤,可以减少维护成本和损耗并且可以最优化宝贵的场地空间。由于制造复合覆盖物所使用的材料较少和导致需要处理的废弃物较少,其还具有资源优势/减少浪费的优势。可以节约能源是因为,可以仅通过覆盖物供料器和填充器/密封器制造本发明的实施例中的可重新封闭的容器,从而简化或减少包括填充器/密封器、加盖器、散装供料器(bulk feeder)和覆盖物传送系统的制造步骤所需的资源。
在实际使用中,消费者还可以避免必须去除上盖、将上盖放到一边,然后去掉膜才能获得容器内的产品。取而代之,在本发明的实施例中,消费者以单一步骤从容器上去除复合覆盖物。在消费者停止使用产品后,可重新封闭的复合覆盖物可以容易地用于重新封闭和充分密封容器内的产品,从而防止产品在存储过程中被污染。
应理解的是,本领域技术人员显然能够对本文描述的优选实施例进行各种改变和修改。可以在不脱离本发明主题的精神和范围并且不减少本发明的预期优点的情况下进行这些改变和修改。因此,所附权利要求意在覆盖这些改变和修改。
Claims (20)
1.一种用于容器的覆盖物,包括:
包含柔性层、金属层和密封剂层的柔性盖,以及永久地附接至所述柔性盖的上盖边沿。
2.根据权利要求1所述的覆盖物,所述覆盖物包括将所述柔性层附接至所述金属层的第一粘合剂。
3.根据权利要求1所述的覆盖物,所述覆盖物包括将所述密封剂层附接至所述金属层的第二粘合剂。
4.根据权利要求1所述的覆盖物,其中,所述柔性层包括从聚酯、聚丙烯、纸和它们的组合所组成的组中选取的材料。
5.根据权利要求1所述的覆盖物,其中,所述金属层包括从铝箔、锡箔和它们的组合所组成的组中选取的材料。
6.根据权利要求1所述的覆盖物,其中,所述密封剂层包括从聚丙烯、聚苯乙烯、聚乙烯、聚酯、聚乳酸和它们的组合所组成的组中选取的材料。
7.根据权利要求1所述的覆盖物,其中,所述上盖边沿包括从由聚丙烯、聚苯乙烯、聚乙烯、聚酯、聚乳酸和它们的组合所组成的组中选取的材料。
8.根据权利要求1所述的覆盖物,所述覆盖物还包括附接至所述柔性层和所述金属层中的至少一者上的突出部。
9.根据权利要求1所述的覆盖物,其中,所述上盖边沿包括突出部。
10.一种可重新封闭的容器,包括:
包含柔性层、金属层和密封剂层的柔性盖;
永久地附接至所述柔性盖的上盖边沿;和
包含边沿的容器,其中,所述柔性盖可去除地附接至所述边沿。
11.根据权利要求10所述的可重新封闭的容器,所述容器包括将所述柔性层附接至所述金属层的第一粘合剂。
12.根据权利要求10所述的可重新封闭的容器,所述容器包括将所述密封剂层附接至所述金属层的第二粘合剂,所述第二粘合剂与所述第一粘合剂相比形成较弱的粘结。
13.根据权利要求10所述的可重新封闭的容器,其中,所述柔性层包括从聚酯、聚丙烯和它们的组合所组成的组中选取的材料。
14.根据权利要求10所述的可重新封闭的容器,其中,所述金属层包括从铝箔、锡箔和它们的组合所组成的组中选取的材料。
15.根据权利要求10所述的可重新封闭的容器,其中,所述密封剂层包括从聚丙烯、聚苯乙烯、聚乙烯、聚酯、聚乳酸和它们的组合所组成的集合中选取的材料。
16.根据权利要求10所述的可重新封闭的容器,其中,所述上盖边沿包括从聚丙烯、聚苯乙烯、聚乙烯、聚酯、聚乳酸和它们的组合所组成的组中选取的材料。
17.根据权利要求10所述的可重新封闭的容器,所述容器还包括附接至所述柔性层和所述金属层中的至少一者上的突出部。
18.根据权利要求10所述的可重新封闭的容器,其中,所述上盖边沿包括突出部。
19.根据权利要求10所述的可重新封闭的容器,其中,所述容器包括从金属、聚丙烯、聚苯乙烯、聚乙烯、聚酯、聚乳酸和它们的组合所组成的组中选取的材料。
20.一种用于制造可重新封闭的容器的方法,包括:
提供包含柔性层、金属层和密封剂层的柔性盖;
将上盖边沿永久地附接至所述柔性盖上以形成复合覆盖物;和
将所述复合覆盖物密封在容器的开口上。
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- 2010-03-10 CN CN2010800106006A patent/CN102341313A/zh active Pending
- 2010-03-10 CA CA2754704A patent/CA2754704A1/en not_active Abandoned
- 2010-03-10 BR BRPI1008943A patent/BRPI1008943A2/pt not_active IP Right Cessation
- 2010-03-10 AU AU2010223116A patent/AU2010223116B2/en not_active Ceased
- 2010-03-10 WO PCT/US2010/000722 patent/WO2010104574A1/en active Application Filing
- 2010-03-10 US US13/138,524 patent/US20110315703A1/en not_active Abandoned
- 2010-03-10 MX MX2011009628A patent/MX2011009628A/es not_active Application Discontinuation
- 2010-03-10 JP JP2011554044A patent/JP5756411B2/ja not_active Expired - Fee Related
- 2010-03-10 EP EP10751123A patent/EP2406145A4/en not_active Withdrawn
-
2011
- 2011-10-12 ZA ZA2011/07481A patent/ZA201107481B/en unknown
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103086064A (zh) * | 2013-02-23 | 2013-05-08 | 马晓璐 | 一种容器瓶防污染内盖 |
CN103086064B (zh) * | 2013-02-23 | 2015-04-15 | 马晓璐 | 一种容器瓶防污染内盖 |
Also Published As
Publication number | Publication date |
---|---|
WO2010104574A1 (en) | 2010-09-16 |
JP2012520213A (ja) | 2012-09-06 |
US20110315703A1 (en) | 2011-12-29 |
JP5756411B2 (ja) | 2015-07-29 |
EP2406145A4 (en) | 2012-08-01 |
MX2011009628A (es) | 2011-09-29 |
AU2010223116B2 (en) | 2015-10-01 |
AU2010223116A1 (en) | 2011-09-08 |
RU2011141490A (ru) | 2013-04-20 |
EP2406145A1 (en) | 2012-01-18 |
RU2544127C2 (ru) | 2015-03-10 |
CA2754704A1 (en) | 2010-09-16 |
BRPI1008943A2 (pt) | 2016-03-15 |
ZA201107481B (en) | 2013-02-27 |
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