CN102770353B - 用于食品的可再密封的包装和制造方法 - Google Patents

用于食品的可再密封的包装和制造方法 Download PDF

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CN102770353B
CN102770353B CN201180010842.XA CN201180010842A CN102770353B CN 102770353 B CN102770353 B CN 102770353B CN 201180010842 A CN201180010842 A CN 201180010842A CN 102770353 B CN102770353 B CN 102770353B
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E·伦德斯
P·卢伊曼斯
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Generale Biscuit SAS
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Abstract

一种用于食品的可再密封的包装,包括:柔性容器(10),具有顶面、底面和侧面(12,13,14,15,16);容器孔(19),具有在顶面内延伸的横向边缘;柔性闭合翼片(20),在横向边沿(24)上由可重新定位的粘合剂覆盖,所述横向边沿能够从粘合在孔周围的闭合位置剥离。容器包含支撑插入件(30),支撑插入件包括框架(40),框架沿着侧面延伸并且具有下部外周边缘(47)以及顶部外周边缘(48),下部外周边缘至少沿其足部(47a)放置在底面上,顶部外周边缘至少在头部部分(48)中位于所述顶面的高度处,两个顶板(51,52)在头部部分之间延伸。在横向边沿所粘附的区域中插入件覆盖容器的内面,以便在再密封期间支撑所述内面。还公开了制造方法。

Description

用于食品的可再密封的包装和制造方法
技术领域
本发明涉及一种用于诸如薄脆饼干、饼干、曲奇、小甜饼、巧克力等或其它零食的食品的包装,所述包装设置有可再密封的开口并且优选地为宽开口。更加具体地,本发明涉及一种这样的包装,所述包装包括:
柔性容器,所述柔性容器具有顶面、底面和侧面;
容器孔,所述容器孔足够宽以用于取出食品并且具有至少在顶面内延伸的横向边缘;
柔性闭合翼片,所述柔性闭合翼片从设计成保持结合到容器的基部延伸到抓持构件,并且在所述基部和所述抓持构件之间设置有可动部分,所述可动部分在横向边沿和自由端边沿上被可重新定位的粘合剂所覆盖,所述粘合剂能够从闭合位置剥离,在所述闭合位置中,所述可动部分覆盖容器孔并且所述边沿粘附到所述容器孔的周边区域。
背景技术
消费者存在对具有这样闭合件的食品包装的需求,所述闭合件使得能够仅仅取出食品的一部分并且使得能够再闭合包装,以便在可能从几小时到几天的时期内保存剩余产品的新鲜度。特别是在如薄脆饼干的干燥食品的情况下,环境湿度会快速地改变它们的松脆度。
尤其由文献EP1637472A1已知一种具有可再密封开口的包装,所述文献公开了一种标签,所述标签能够重置在成形为开口的狭缝上,所述狭缝通过首次开启时撕掉双层包装材料的一部分而形成。
然而,对于这种包装,仍然有待提高获取食品的可获得性以及再闭合的包装的密闭性,尤其当已经取出大部分食品时。
事实上,在包装包括紧密包裹饼干摞的波纹纸板层的情况下,保存在端部的饼干必须朝向狭缝状开口向上移动。这产生了包装的变形并且继而闭合翼片不能以足够维持新鲜度的密闭的方式放回原处。
而且,波纹层包装材料自身沿着径向方向不是刚性的。如果没有饼干保存在开口区域中,则当使用者拉下包装膜上的闭合翼片以粘附可重新定位的粘合剂时,包装材料趋于塌陷。因此,尤其难以获得对于散装包含在这样包装中的食品而言的再密封功能。
发明内容
本发明的目的是在可再密封性和使用的便利性方面改进这样的包装。但是必须不能忽略食品工业需要廉价且产生尽可能少的废料的包装的需求。
为此目的,本发明提出一种用于以上提及类型的食品的可再密封的包装,其特征在于,所述柔性容器包含支撑插入件,所述支撑插入件包括沿着所述容器的侧面延伸的框架,所述框架具有下部外周边缘和顶部外周边缘,所述下部外周边缘至少沿其足部放置在所述底面上,所述顶部外周边缘至少在头部部分位于所述顶面的高度处,至少两个顶板在所述头部部分之间在所述顶面的正下方延伸,在所述闭合翼片的横向边沿所粘附的区域中所述支撑插入件至少覆盖所述柔性容器的内面,使得所述支撑插入件在再密封所述闭合翼片期间支撑所述柔性容器。
支撑插入件在柔性容器内提供支撑,在将闭合翼片轻轻按压在所述柔性容器上时尤其按压在顶面上时,所述支撑防止所述柔性容器塌陷。可以指出的是,尽管并不排除,但是闭合翼片的基部和自由端边沿不是必须由插入件所支撑。事实上,看来支撑横向边沿所粘附的区域是必须的,并且能够足以获得令人满意的再密封。
即使支撑插入件不具有面向底面的板,支撑插入件也使得能够保持柔性容器在接纳横向边沿的纵向部分上的横截面轮廓。原因在于支撑插入件的框架结构,所述框架结构必须具有连接纵向壁的端壁,因此防止纵向壁靠近。利用仅仅由弯曲成U状形式的波纹纸板片制成的插入件不能获得这种效果。可以指出的是,支撑插入件的框架不必紧密包裹食品-可以散装地容纳食品,所以食品可以或多或少地朝向容器孔自由运动。
看来鉴于所获得的优势,支撑插入件所需的材料量可以接受。另外,制造和填充处理能够与用于将食品直接包装在由接缝密封的柔性膜中的现有设备相兼容。
在本发明的优选的实施例中,能够采用以下特征中的一个或多个。
支撑插入件不在容器孔中延伸,这为了防止边沿粘附到插入件。
框架的顶部外周边缘具有面向闭合翼片的基部和自由端的下部部分,所述下部部分位于头部部分的下方并且与容器孔相距一距离。这种布置方案使得能够节省材料并且看来不对可再密封性造成不利影响。
顶板中的每一个均具有自由边缘,所述自由边缘沿着容器孔的横向侧部以远短于横向边沿宽度的距离延伸,以便支撑横向边沿宽度的绝大部分。
顶板具有四个侧部,所述四个侧部中的三个侧部联接到框架的头部部分。这种布置方案显著提高了插入件能够支撑的竖直荷载。
至少对于初始构造,框架的下部外周自由边缘限定了所述框架的最宽的内横截面。由于这种特征,食品能够通过下部外周边缘插入而不会与顶板干涉。
框架的下部外周边缘除了足部之外还包括可动部。所述可动部使得能够紧密配合食品的形状。
支撑插入件由双面波纹板制成。能够使用其它材料。然而,双面波纹板提供了待达到的刚度和所需的材料量以及其价格之间的尤为良好的折衷。
支撑插入件由单个片状插入胚件制成,所述插入胚件仅通过突片的相互接合组装而成。这种不含胶水的插入件对于食品是有利的并且制造低廉,尽管在投入生产之前还需要更多的研制时间。
柔性容器在具有密封接缝的相对侧端面之间沿着纵向轴线延伸,以及闭合翼片沿着相对于所述纵向轴线垂直的方向延伸,容器孔具有沿着纵向轴线的宽度,所述宽度包括在顶面长度的60%和90%之间,并且优选地为所述长度的大约70%。这些特征向使用者提供了尤为便利的包装以及良好的可再密封性。
支撑插入件包含扁平食品摞,至少对于初始构造,所述扁平食品摞具有基本对应于框架的下部外周边缘的内横截面的纵向最宽外截面。因此,即使对摞放的食品填充支撑插入件也不存在的特别问题。
本发明还涉及一种制造具有以上特征中的任意一个的可再密封的包装的方法。所述制造方法包括以下步骤:
-提供具有闭合翼片的柔性膜;
-提供支撑插入件;
-通过所述支撑插入件的下部外周边缘给所述支撑插入件填充食品;
-围绕已填充的支撑插入件折叠柔性膜;以及然后
-纵向密封以及在切割端部处密封所述柔性膜,以便形成密封的柔性容器。
在本方法的优选的实施例中,将食品水平摞放在传送装置上,并且使支撑插入件沿着相对于食品摞的轴线的横向方向运动,以便使得所述摞穿过所述框架的下部外周边缘。
根据本方法的另一个优选的特征,在偏离柔性膜的传送路径的位置填充支撑插入件。
附图说明
参照附图从以示例方式给出的优选实施例的以下描述中,其它优点和性能特征将变得显而易见。
图1是根据本发明的具有处于开启位置的闭合翼片和以虚线表示的支撑插入件的食品包装的示意性透视图;
图2是图1的包装的正视图,在所述正视图中闭合翼片处于闭合位置中;
图3是沿着图2的线条III-III的局部剖视图;
图4是图1的支撑插入件的侧视图;
图5是用于形成图1的支撑插入件的插入坯件的俯视图;
图6是图1的包装的制造处理的示意性表示。
具体实施方式
附图中使用相同的附图标记以指代相同或相似的元件。
在附图1中,表示设计成包含图6处示意性表示的食品3的包装1。
在这个实施例中,食品是大体矩形形状以及更加精确地是形状对应于拐角切割的矩形的八边形的薄脆饼干。所述食品彼此相邻布置,以形成摞。食品不必是矩形,所述食品可以大体上呈圆形或多边形。包装适于多种种类的干燥食品,如饼干、曲奇、面包片。食品不必布置以形成摞。如将从以下描述显现的那样,包装也适于散装的小食品,如任何种类的零食或甜品。
包装1包括容器10,所述容器10由柔性膜11制成,使得所述容器自身具有柔性。
在所述实施例中,容器10具有沿着纵向轴线X在两个纵向端部(10a、10b)之间延伸的细长形状。容器10设有顶面12、底面13、和侧面。在所述实施例中,侧面包括前侧面14、后侧面15和在纵向端部(10a、10b)处的两个相对的横向侧面16。
柔性容器10的外侧印制有装饰和信息图案,为了清晰起见在图1和2中没有示出所述装饰和信息图案。
然而,柔性容器10不是平行六面体。如在优选的实施例中,横向侧面16能够呈现角锥形,所述角锥形终止于由通过热封结合制成的横向密封接缝17。柔性容器10不必以密闭的方式包裹堆叠的食品。结果,柔性容器10可以不具有带确切角的横截面轮廓而是具有比食品略微更加倒圆的轮廓。实际上,在表示的实施例中,柔性容器10也被称作块(slug)。其不具有尖锐的边缘,以及稍微倾斜的纵向边缘。在散装的产品的情况中,柔性容器还可以更加不同于平行六面体。横截面轮廓不必是矩形,而能够是任何一种多角形,甚至为三角形。在所述情况中,顶面尤其窄并且前面和后面不平行。总之,短语“侧面”必须解释为容器10的在正交侧视图上可见的表面,顶面12和底面13的顶部是互补表面。
柔性膜11由塑料制成,尤其在优选的实施例中由厚度为大约40微米的聚丙烯(PP)制成。然而,所述膜能够由另一种材料制成,举例说明,由聚酯(PE)和聚丙烯(PP)层压件制成并且其厚度能够基本根据所包含的食物所需的抗力和各种特性进行变化。厚度尤其能够在30微米至90微米的范围内变化。
为了形成管状体,沿着在附图中不可见的纵向密封接缝来密封柔性膜,所述纵向密封接缝延伸通过底面13直到端部密封接缝17。
柔性容器10具有容器孔19,所述容器孔19设计成使得能够通过所述孔取出至少一个产品2。容器孔19位于顶面12上。在优选的实施例中,容器孔19横向延伸通过顶面12并且在前侧面和后侧面(14,15)的上部部分上,以便有助于取出食品。
如在图2中最佳可见的那样,容器孔19具有沿着纵向轴线X测量的宽度w,所述宽度w代表顶面12长度l的大部分。
在示出的实施例中,孔的宽度w为代表顶面12的长度l的大约70%的90mm。孔的宽度w能够代表顶面的更短部分以及能够减小成狭缝状的孔。然而,代表顶面长度l的至少60%的宽孔对于使用者而言更为便利并且使得能够将开启的包装作为放置在桌子上的托盘来使用。
尤其对更长的包装而言,宽度w能够大于70%。但是优选地不超过顶面12的长度l的90%。事实上,如将在以下呈现的那样,容器顶面12的端部部分必须优选地保持未被切割,以有助于在首次开启之后再密封。
如能够在图1中所见的那样,容器孔19的横向延伸通过顶面12的横向边缘是直线的。容器孔19的在前侧面14上纵向延伸的前边缘是弧形。
由连续的切口线19a限定容器孔19,以便在首次开启包装时至少在容器孔19的周边区域中不必撕掉柔性容器10的任何部分,使得所述区域不经受柔性膜的永久变形。然而,切割线可以包括限定了窄条19b的少数缺口,所述窄条19b(可能端部没有被切割)朝向孔中央延伸,以便形成如在文献EP1975081A1中所描述的指示完整性的装置。这种窄条19b不会产生周边区域的显著永久变形。
包装1还包括闭合翼片20,所述闭合翼片20设置在柔性容器10的外侧部上。闭合翼片20包括:在图2中表示的基部21;可动部分22,所述可动部分22设计成在闭合位置覆盖容器孔19和所述容器孔19的周边区域;以及位于基部21的相对纵向端部处的抓持构件23。
即使闭合翼片20能够具有长于其长度的宽度w,也认为闭合翼片20从基部21延伸到抓持构件23,以便覆盖宽的容器孔19。闭合翼片的在图2中用轴线T表示的延伸方向轴线相对于纵向轴线X沿着横向方向延伸。闭合翼片的这个方向避免了与端部密封接缝17发生相互干涉以及这便于取出食品。
闭合翼片20由柔性材料制成并且优选地由塑料膜制成。在优选的实施例中,柔性材料是厚度为大约50微米的聚丙烯的透明膜。
除了在形成抓持装置23的突片上,闭合翼片20被可重新定位的粘合剂-尤其是压敏粘合剂(PSA)所覆盖。粘合剂的层均匀并且如同标签一样薄。
在位于容器孔19的端部下方的翼片中间部分上,翼片的基部21粘附到后侧面15。至少在正常使用期间,基部必须保持附接到柔性容器10。为此目的,贯通基部形成的剥离停止切口能够由其它装置-如基部21和柔性容器10之间的永久粘合剂层或热密封所替代。
可动部分22必须比容器孔19宽,以便被可重新定位的粘合剂(在图1上用点表示)所覆盖的两个横向边沿24和自由端边沿25覆盖容器孔19的周边区域。一部分周边区域能够由基部21覆盖,以完成可动部分22的U状边沿(24、25)。然而,至少在首次开启之前,重要的是闭合翼片20一致且紧密地覆盖容器孔19的周边区域,原因在于所述孔由贯通容器10的切口线所限定。举例说明,图2中用m表示的15mm宽的边沿24提供了足够的密封。
非常优选的是,处于闭合位置的可动部分22的形状和位置对应于容器孔19的中央区域没有粘合剂。多种可能性均能够防止中央区域具有粘性,比如保持中央区域没有粘合剂。然而,更为有利的是用从容器的柔性膜11上切割下的板27覆盖中央区域。
根据本发明,设置了在图1和图2中用虚线表示以及在图5中用胚件构造表示的支撑插入件30。
支撑插入件30包括框架40,即,形成限定了自由通道的外周壁的矩形或多边形构件。框架40沿着容器10的侧面(14、15、16)延伸,使得所述框架40具有以图2中的虚线可见的矩形轮廓。框架40具有由端壁46联接的前纵向壁44和后纵向壁45。
柔性容器10能够以紧密方式或者具有微小间隙的方式包裹框架。但是优选地避免框架40松散装配在柔性容器10内,以用于防止框架在容器内部运动。
框架40具有下部外周边缘47。下部外周边缘47能够包含在单个水平面中,以用于沿着底面13的整个周长铺设在底面13上。然而,在优选的实施例中,外周下部边缘具有称作足部47a的若干部分,所述足部47a较之所述下部边缘的其余部分位于更低的位置。当包装以图1中的构造搁置在桌子上时,如能够在图3中所见的那样,足部47a位于端壁46的下部边缘处并且与柔性容器的底面13相接触。下部外周边缘47是自由边缘,原因在于支撑插入件30没有底壁。
下部外周边缘47还包括用47b表示的纵向部分,所述纵向部分47b对应于纵向壁(14、15)的底部边缘。
框架40具有顶部外周边缘48,所述顶部外周边缘48对应于框架40的最高点。顶部外周边缘48在最高处包括头部部分,所述头部部分位于柔性容器的顶面12的正下方,可能与顶面相接触。
更加具体地,在示出的实施例中,框架的每个纵向端部均包括由端壁46的边缘48a和两个相邻短部分(48b、48c)所形成的U状头部部分,两个相邻短部分对应于纵向壁(14、15)的顶部边缘。
支撑插入件30还包括两个顶板(51、52)。每个顶板(51、52)均在头部部分(48a、48b和48c)之间延伸,使得所述顶板在柔性容器10的顶面12的正下方延伸。
当拉下抓持构件23时,顶板(51、52)必须在闭合翼片20的横向边沿24所粘附的区域上覆盖柔性容器10的内面。
支撑插入件30在这样的区域中支撑柔性容器10,边沿(24、25)必须轻轻地按压在所述区域上以便利用可动部分22的可重新定位的粘合剂粘附到包装。
由于在柔性膜11的内面上设有框架40和板(51、52),因此支撑插入件30防止在容器10的柔性膜中产生皱褶或波纹。而且还通过维持柔性容器10的横截面轮廓,于是避免在所述柔性容器10的柔性面上形成弯曲。
为了支撑面向横向边沿24的区域,可以提供仅仅联接到相对的头部部分(如前侧壁和后侧壁(44、45)的头部部分48b和48c)的窄顶板。
在优选的实施例中,顶板(51、52)在第三侧部联接到端壁46的头部部分48a。所述特征显著地增加了顶板(51、52)支撑载荷的能力。端壁46形成足部47a和头部部分48a的事实也提高了支撑插入件30承载载荷的能力。
优选地,顶板(51、52)没有在容器孔19内延伸,以便防止边沿(24、25)和支撑插入件30之间的粘合,所述支撑插入件30可以由这样的材料制成,所述材料对于可重新定位粘合剂的粘附性大于柔性膜11。
在优选的实施例中,顶板(51、52)的自由边缘沿着容器孔19的对应的横向侧部延伸,所述自由边缘距容器孔的横向侧部的距离远小于横向边沿24的宽度m。
在这个实施例中,在边沿具有大约15mm的宽度m的同时,顶板(51、52)设计成具有与容器孔19相距2mm或3mm的距离的自由边缘。
能够指出的是,沿着顶板(51、52)侧部中的三个侧部的顶板的联接使得能够具有与前纵向壁和后纵向壁(44、45)的顶部部分(48b、48c)相邻的倾斜板,尽管倾斜板自身趋于降低支撑竖直面的能力。
支撑插入件30必须造价低廉,以便限制因包装的可再密封开口功能所必需的附加成本。此外优选的是支撑插入件30能够再循环使用。但是支撑插入件必须足够刚硬或坚硬,以便支撑由使用者在拉下闭合翼片20时为了粘附横向边沿24所施加的载荷。波纹纸板材料是低廉的。然而,双面波纹尤其优选于承受竖向载荷。事实上,单面波纹沿着横向于凹槽的方向过于柔性而不能支撑任何载荷。更加特别地,波纹板具有重要的每英尺凹槽数量,如F-凹槽型,并且相对较薄,其具有大约1.3mm的厚度。能够使用其它材料,比如卡片纸板或合成树脂。能够尤为优选的由流延膜-如聚丙烯(CPP)流延膜-制造支撑插入件,以便减小壁的厚度。
支撑插入件30由纸板或金属薄片材料制成,在材料中切割附图5中示出的胚件50。胚件50由单片构成,在没有如胶水或卡钉的任何固定装置的情况下,所述胚件通过折叠以及突片的相互接合而直立,以便形成支撑插入件30。更加具体地,端壁46附接到前纵向壁和后纵向壁(44、45),以借助插通端壁46的狭缝46a的突片(44a、44b、45a、45b)形成外周框架。突片通过由狭缝49所限定的凹痕与端壁46相接合,所述狭缝49越过狭缝46a的边缘。折叠线由沿着图5上表示的对应的线冲压胚件50所形成。
前纵向壁和后纵向壁具有与下部外周边缘47相邻的铰接板(44d、45d)。然后,框架40的下部外周边缘具有可动部47b。可动部47b能够从初始构造运动到包装构造,在图4的右侧能够看见初始构造,在所述初始构造中可动部47b在纵向壁(44、45)的平面内延伸,在图4的左侧部能够看见包装构造,在所述包装构造中可动部47b朝向足部47a倾斜。
在初始构造中,下部外周边缘47限定了框架40的最宽的内横截面,最宽的内横截面使得饼干摞能够通过。如果饼干摞具有如在优选的实施例中的带有倾斜拐角的矩形形状,则铰接板(44d、45d)使得能够以相当贴近的方式包围饼干摞。由于这种特征,能够直接从外部识别食品形状。
多种制造方法均能够制造和填充根据本发明的包装。然而,在图6中示意性表示了用于制造包装的优选的方法。
食品3在链式传送装置61上布置成形成水平摞。每个摞均保持在前止动件63和后止动件64之间。前止动件和后止动件(63、64)具有使食品3转向的上端部。例如由金属带制成的前止动件63具有弹性,以便在摞上施加轻微的压力并且用于使得摞的长度发生一些变化。
制造设备还包括自动胚件直立机器66、柔性膜传送路径、柔性膜折叠装置68、纵向密封装置70、和横向切割与密封装置72。
插入坯件50供给到直立机器66,所述直立机器66将所述插入坯件50设定成支撑插入件30的三维形状。通过将端壁46插入在摞和止动件(63、64)之间,机器66还将直立的支撑插入件放在食品3的每个水平摞上。在这个步骤期间,下部外周边缘47有利地限定了框架40的较宽的内横截面,以便容易地填充支撑插入件30。换言之,如果框架包括铰接板(44d、45d),则插入件30处于初始构造。
通过食品3的摞和插入件30之间沿着相对于摞的轴线垂直的方向的相对平移来完成填充。在描述的实施例中,支撑插入件30向下运动越过摞。然而,其它相对运动是可能的。
应当注意的是,支撑插入件30被填充在与柔性膜传送路径偏移的位置,并且没有如通常用于制造由接缝密封的柔性容器那样位于柔性膜上方。因此,限制了在柔性膜11上发生压扁的风险。
由支撑插入件30包围的食品3被相当好得保持在一起,并且如果需要可以倾斜。然后朝向装置(68、70、72)传送已填充的支撑插入件30,从而使得能够形成包封食品3和插入件30的柔性容器10。这些装置能够是很标准的。
以平坦构造将事先印制并且设置有闭合翼片20的柔性膜11传送到折叠装置68,所述折叠装置68弯曲膜直到获得围绕支撑插入件30的管状轮廓。在这个步骤期间,铰接板(44d、45d)抵靠食品3运动,以便遵循食品3的外轮廓。然后膜11的纵向边缘被纵向密封装置70熔接在一起。下一个装置72形成闭合柔性容器10的横向接缝17以及实施横向切割,以获得单个的包装。
以上详细描述并非局限性,除了以上提及的那些,能够采用多种修改方案。可能的修改方案特别基于将要包含在包装中的食品种类和形状。
在以下权利要求中的任何附图标记均不应当认为是限制所述权利要求。显而意见的是,使用动词“包括”以及其词形变化并不排除存在除了任意权利要求中所限定元件之外的任意其它元件。元件前述的词语“一个(a)”或“一个(an)”不排除存在多个这样的元件。

Claims (15)

1.一种用于食品的可再密封的包装,包括:
柔性容器(10),所述柔性容器具有顶面(12)、底面(13)和侧面(14,15,16);
容器孔(19),所述容器孔足够宽以用于取出食品,并且所述容器孔具有至少在所述顶面(12)内延伸的横向边缘;
柔性闭合翼片(20),所述柔性闭合翼片从基部(21)延伸到抓持构件(23),所述基部设计成保持结合到容器,并且在所述基部和所述抓持构件之间设置有可动部分(22),所述可动部分在横向边沿(24)和自由端部边沿(25)上由能够重新定位的粘合剂覆盖,所述横向边沿(24)和所述自由端部边沿(25)能够从所述横向边沿(24)和所述自由端部边沿(25)粘附到所述容器孔的周边区域的闭合位置剥离,
其特征在于,所述柔性容器(10)包含支撑插入件(30),所述支撑插入件包括沿着所述容器的侧面(14,15,16)延伸的框架(40),所述框架具有下部外周边缘(47)和顶部外周边缘(48),所述下部外周边缘至少沿其足部(47a)放置在所述底面(13)上,所述顶部外周边缘至少在头部部分(48a,48b,48c)位于所述顶面(12)的高度处,至少两个顶板(51,52)在所述头部部分之间在所述顶面(12)的正下方延伸,在所述闭合翼片(20)的横向边沿(24)所粘附的区域中所述支撑插入件至少覆盖所述柔性容器的内面,使得所述支撑插入件在再密封所述闭合翼片期间支撑所述柔性容器。
2.根据权利要求1所述的可再密封的包装,其中,所述支撑插入件(30)不在所述容器孔(19)内延伸。
3.根据权利要求1或2所述的可再密封的包装,其中,所述框架(40)的所述顶部外周边缘(48)具有面向所述闭合翼片(20)的基部(21)和自由端部的下部部分(48d),所述下部部分位于所述头部部分(48a,48b,48c)的下方并且与所述容器孔(19)相距一距离。
4.根据权利要求1所述的可再密封的包装,其中,所述顶板(51,52)中的每一个均具有沿着所述容器孔(19)的横向侧部延伸的自由边缘,所述自由边缘距所述容器孔的横向侧部的距离远小于所述横向边沿(24)的宽度(m)。
5.根据权利要求1所述的可再密封的包装,其中,所述顶板(51,52)具有四个侧部,所述四个侧部中的三个侧部联接到所述框架的头部部分(48a,48b,48c)。
6.根据权利要求1所述的可再密封的包装,其中,至少对于初始构造,所述框架(40)的下部外周自由边缘(47)限定了所述框架的最宽的内横截面。
7.根据权利要求1所述的可再密封的包装,其中,所述框架(40)的所述下部外周边缘(47)除了足部(47a)之外还包括可动部(47b)。
8.根据权利要求1所述的可再密封的包装,其中,所述支撑插入件(30)由双面波纹纸板制成。
9.根据权利要求1所述的可再密封的包装,其中,所述支撑插入件(30)由单个片状插入坯件(50)制成,所述插入坯件仅通过突片(44a,44b,45a,45b)的相互接合组装而成。
10.根据权利要求1所述的可再密封的包装,其中,所述柔性容器(10)在具有密封接缝(17)的两个相对横向侧面(16)之间沿着所述柔性容器(10)的纵向轴线(X)延伸,
所述闭合翼片(20)沿着相对于所述纵向轴线(X)的横向方向(T)延伸,所述容器孔(19)具有沿着所述纵向轴线的宽度(w),所述沿着所述纵向轴线的宽度(w)包括在所述顶面的长度(l)的60%和90%之间。
11.根据权利要求10所述的可再密封的包装,其中,所述沿着所述纵向轴线的宽度(w)为所述顶面的长度(l)的70%。
12.根据权利要求1所述的可再密封的包装,其中,所述支撑插入件(30)包容扁平食品(3)的摞,至少对于初始构造,所述扁平食品的摞具有基本对应于所述框架的下部外周边缘(47)的内横截面的纵向最宽外截面。
13.一种根据任意一项前述权利要求所述的可再密封的包装的制造方法,其特征在于,所述方法包括以下步骤:
-提供具有闭合翼片(20)的柔性膜(11);
-提供支撑插入件(30);
-通过所述支撑插入件的下部外周边缘(47)给所述支撑插入件(30)填充食品(3);
-围绕已填充的支撑插入件折叠柔性膜(11);以及然后
-纵向密封以及在切割端部处密封所述柔性膜,以便形成密封的柔性容器(10)。
14.根据权利要求13所述的制造方法,其中,将所述食品(3)水平摞放在传送装置(61)上,并且使所述支撑插入件(30)沿着相对于食品摞的轴线的横向方向运动,以便使得所述摞穿过所述框架的下部外周边缘(47)。
15.根据权利要求13或14所述的制造方法,其中,在偏离所述柔性膜(11)的传送路径的位置填充所述支撑插入件(30)。
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