CN112512935A - 包装食品 - Google Patents

包装食品 Download PDF

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Publication number
CN112512935A
CN112512935A CN201980050697.4A CN201980050697A CN112512935A CN 112512935 A CN112512935 A CN 112512935A CN 201980050697 A CN201980050697 A CN 201980050697A CN 112512935 A CN112512935 A CN 112512935A
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China
Prior art keywords
tear
packaged food
layer
sealed
elongate
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Pending
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CN201980050697.4A
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English (en)
Inventor
迈克·夏普
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Frito Lay Trading Co GmbH
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Frito Lay Trading Co GmbH
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Publication of CN112512935A publication Critical patent/CN112512935A/zh
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    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
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    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Bag Frames (AREA)
  • Wrappers (AREA)
  • Confectionery (AREA)

Abstract

一种包装食品，该包装食品包括：密封袋(4)，该密封袋在密封袋中限定出容纳食品(8)的密封腔(6)，该密封袋由柔性包装膜(10)形成，该柔性包装膜包括单轴定向的聚合物层，该单轴定向的聚合物层限定出沿着膜延伸的优选撕裂方向；其中，包装膜被构造成形成密封袋的第一和第二细长撕开部分(60，62)，该第一和第二细长撕开部分位于密封袋的细长中心部分(64)的相对侧上并且邻近于密封袋的细长中心部分，该第一和第二细长撕开部分以及细长中心部分沿着优选撕裂方向延伸，由此沿着优选撕裂方向撕开第一和第二细长撕开部分以打开密封袋，留下细长中心部分，该细长中心部分形成已打开的袋的把手部分。

Description

包装食品
技术领域
本发明涉及一种包装食品。本发明具体涉及一种包装休闲食品，其中，包装被构造成当用于从打开的包装件中供应食品时该包装对于消费者而言更加方便。
背景技术
用于食品、特别是休闲食品的各种不同的包装件在本领域中是已知的。通常，诸如薯条或薯片的休闲食品被包装在由柔性包装膜构成的袋中，该袋例如为具有相对的密封端部并由竖直成型、填充和密封(VFFS)机器生产的袋。
在本领域中，通常需要用于食品、特别是休闲食品的包装件，该包装件可以具有增加的功能性并且能够吸引消费者。近年来，容纳较大量的休闲食品(即容纳由单个消费者消费的一个以上标准份量的休闲食品)的包装件已经被销售为“共享包”，以使消费者具有共享的吃零食体验。
在本领域中，特别需要一种改进的共享包，该共享包可以提供增强的消费者体验并且使消费者在有多个人希望从打开的包中取出食物而使用共享包时更加方便。
发明内容
因此，本发明提供了根据权利要求1所述的包装食品。
本发明还提供了根据权利要求23所述的层压聚合物柔性包装膜。
从属权利要求中限定了可选的和/或优选的特征。
附图说明
现将参照附图仅以示例的方式描述本发明的优选实施例，在附图中：
图1是根据本发明的实施例的包装休闲食品在打开包装件之前的示意性透视图；
图2是沿着图1的线A-A截取的包装休闲食品的示意性横截面；
图3是图1的包装休闲食品在打开包装件之后的示意性透视图；
图4是包装食品的包装膜的撕开部分的示意性透视侧视图，该撕开部分是通过打开图1的包装食品而形成的；以及
图5是穿过用于形成图1的包装食品的包装膜的横截面。
具体实施方式
参照图1至图4，包装食品、特别是休闲食品(通常用2表示)包括密封袋4。密封袋4在其中限定出容纳食品8的密封腔6。优选地，食品8包括休闲食品，例如薯片、薯条、玉米片、点心片、坚果、或者油炸或烘烤的休闲食品块。包装食品可以包括单份休闲食品，该单份休闲食品的重量通常为20克至75克，且不超过75克，这取决于所包装的具体休闲食品，并且包装食品可以作为独立包出售。替代地，包装食品可以包括多份休闲食品，该多份休闲食品的总重量通常大于75克，这取决于所包装的具体休闲食品，并且包装食品可以作为共享包出售。在图2中，休闲食品8是薯片。
密封袋4是利用在休闲食品工业中使用的常规的制袋工艺，例如利用成型、填充和密封机器以及相关的成型、填充和密封工艺由柔性包装膜10而形成的。密封袋4通常是通过成型、填充和密封工艺形成的枕形包。
密封袋4具有相对的密封端部12、14，该密封端部优选地被热密封，这在制造用于休闲食品的柔性袋中是常见的。纵向密封件15(优选为热密封件15)在第一密封端部12与第二密封端部14之间延伸。
相对的密封端部12、14分别包括各自的密封凸缘17，其中，多层包装膜10被热密封在一起。第一密封端部12和第二密封端部14分别包括由包装膜10形成的各自的折叠角撑板16。每个角撑板16具有向内折叠边缘18以及从该向内折叠边缘18向外延伸的相对的第一内壁20和第二内壁22。第一内壁20和第二内壁22中的每个具有邻近于向内折叠边缘18的各自的下部部分26、28以及各自的上部部分30、32。
参照图5，其中，层厚度是示意性的并且不按比例缩放，包装膜10是层压聚合物膜10，该层压聚合物膜包括单轴定向的聚合层物34，该单轴定向的聚合物层是具有机器方向的机器轧制的聚合物膜。单轴定向的聚合物层34优选地是聚丙烯层。优选撕裂方向沿着单轴定向的聚合物层34的机器方向定向。热密封层36在单轴定向的聚合物层34的第一表面38上形成涂层。阻挡层40具有后表面42，该后表面覆盖单轴定向的聚合物层34的与第一表面38相对的第二表面44。阻挡层40优选地包括在聚丙烯层47上的金属化涂层46。印刷层48覆盖阻挡层40的与后表面42相对的前表面50。印刷层48优选地包括透明聚丙烯层，该透明聚丙烯层被反向印刷在印刷层的后表面49上。优选地，包装膜10进一步包括将印刷层48粘合到阻挡层40的粘合剂层52。优选地，阻挡层40和印刷层48中的至少一个或两者是双轴定向的。
在利用常规的成型、填充和密封工艺用包装膜10制造密封袋的过程中，将包装膜10折叠以形成导管，并且通过热密封形成纵向密封件15。通过热密封多层包装膜10以形成凸缘17，从而形成密封端部12、14中的一个。通过将包装膜10的折叠在一起的部分上的热密封层36密封在一起来进行热密封。然后食品8的定量化的份量被放置于密封导管中，随后通过热密封形成密封端部12、14中的另一个密封端部。这形成了容纳食品8的密封腔6。
本发明提供了一种特定结构，使得能够打开袋4以在袋4中形成一体的把手部分，该把手部分由包装膜10形成。
单轴定向的聚合物层34限定了优选撕裂方向T，该优选撕裂方向沿着包装膜10延伸。包装膜10被定向在密封袋6中，使得优选撕裂方向T在第一密封端部12与第二密封端部14之间延伸。
包装膜10形成密封袋4的第一细长撕开部分60和第二细长撕开部分62，该第一细长撕开部分和第二细长撕开部分在密封袋4的细长中心部分64的相对侧上并且邻近于密封袋4的细长中心部分64。第一细长撕开部分60和第二细长撕开部分62以及细长中心部分64沿着优选撕裂方向T延伸。第一细长撕开部分60和第二细长撕开部分62以及细长中心部分64在相对的第一密封端部12与第二密封端部14之间延伸并且连接到该相对的第一密封端部12与第二密封端部14。
第一细长撕开部分60被限定在沿着优选撕裂方向T延伸的、相互间隔开的第一撕裂线66和第二撕裂线68之间，并且第二细长撕开部分62被限定在沿着优选撕裂方向T延伸的、相互间隔开的第三撕裂线70和第四撕裂线72之间。细长中心部分64被限定在相互间隔开的第二撕裂线68与第三撕裂线70之间。
第一撕裂线66、第二撕裂线68、第三撕裂线70和第四撕裂线72是远离至少一个物理撕裂引发元件74延伸的虚拟撕裂线，该至少一个物理撕裂引发元件形成在包装膜10中并且位于撕裂线66、68、70、72的至少一个端部处。物理撕裂引发元件74优选地包括形成在包装膜10中的弱化部(例如切口76)，该弱化部优选地是线状的和/或呈凹口的形式。例如远离密封腔8的凸缘17。在示出的实施例中，体现为切口76的弱化部74形成在密封端部12、14中的至少一个中，并且优选地包括凹口76，该凹口76切入各自的密封端部12、14的凸缘17的边缘89中。
切口76相对于折叠角撑板16的深度被定位成使得在打开密封袋4的动作中，当通过沿着切口76的方向撕裂来引发沿着优选撕裂方向T撕裂包装膜10时，折叠角撑板16的相对的最上部分78、80以及密封袋4的侧壁85的位于最上部分78、80之间的任何中间部分82以一种常见的撕裂动作被撕开。撕裂动作使折叠角撑板16的最下部分84以及密封袋4的侧壁84的位于折叠角撑板之间的任何中间部分86仍然连接到现在打开的袋4的相对的密封端部12、14。最下部分84和任何中间部分86形成细长中心部分64，该细长中心部分沿着优选撕裂方向T延伸并可用作已打开的袋4的把手部分65。
细长中心部分64包括第一壁20和第二壁22的向内折叠边缘18和相对的下部部分26、28，并且第一细长撕开部分60和第二细长撕开部分62包括第一壁20和第二壁22的相对的上部部分30、32。
共用的物理撕裂引发元件74位于第一密封端部12和第二密封端部14中的一个处，由此沿着单个共用的物理撕裂引发元件74的撕裂使得沿着第一撕裂线66、第二撕裂线68、第三撕裂线70和第四撕裂线72撕裂包装膜10，以将第一细长撕开部分60和第二细长撕开部分62与细长中心部分64分开，该细长中心部分保持在第一密封端部12与第二密封端部14之间。
优选地，细长中心部分64与纵向密封件15间隔开。
折叠角撑板16形成密封袋4的一个侧面90。密封袋4的相对侧面92也可以可选地设有折叠角撑板(未示出)。在折叠角撑板16的相对侧上，密封袋4的外前侧壁93和外后侧壁94在相对侧90、92之间延伸。在折叠角撑板16处，包装膜10的四个层被密封在一起，这四个层形成前侧壁92、第一内壁20、第二内壁22和后侧壁94。切口76延伸穿过包装膜10的这四个层。
为了打开密封袋4，用户只需沿着位于密封端部12处的切口76拉动。该撕裂动作使得包装膜10的四个层在常见的撕裂动作中沿着优选撕裂方向T同时撕裂。第一细长撕开部分60和第二细长撕开部分62被撕开，留下细长中心部分64，该细长中心部分沿着优选撕裂方向T延伸并可用作已打开的袋4的把手部分65。
切口76位于折叠角撑板16的顶部边缘61与底部边缘63之间，使得当在切口76处撕裂柔性包装膜10时，该撕裂沿着优选撕裂方向T延伸同时穿过柔性包装膜10的四个层，从而撕开外部的位于切口76上方的第一细长撕开部分60和第二细长撕开部分62，留下位于切口76下方的细长中心部分64。
袋4的现在打开的侧面90可以用作袋的已打开的顶部，以获取袋中的休闲食品。袋4的相对侧面92可用作被布置在支撑表面上的底部。
密封袋4可以可选地设置有关于消费者如何打开袋的印刷说明；例如标语“在此撕裂”或可被印刷在切口76附近的类似标语。
第一撕裂线66、第二撕裂线68、第三撕裂线70和第四撕裂线72是虚拟的撕裂线，因为这些撕裂线是在包装膜10被实际撕裂才形成的，但是由于在撕裂动作之前，切口76和包装膜10中的优选撕裂方向T的结构组合限定了撕裂线66、68、70、72的位置，因此这些撕裂线实际上是存在的，该结构组合由限定优选撕裂方向T的单轴定向的聚合物层来体现，该优选撕裂方向沿着包装膜10延伸。优选地，没有第一撕裂线66、第二撕裂线68、第三撕裂线70和第四撕裂线72的物理标记，例如包装膜10的印刷字体或印花。因此，包装膜10气密密封并保护密封腔6中的包装食品的功效不受损坏。切口76形成在远离密封腔6的密封端部12中，因此密封腔6的密封不受切口76的损坏。
本发明的优选实施例可以提供一种包装休闲食品，其中，包装被构造成当用于从打开的包装件中供应食品时该包装对于消费者而言更加方便。
本发明的优选实施例可以提供一种用于休闲食品的改进的共享包，该共享包可以提供增强的消费者体验并且使消费者在有多个人希望从打开的包中取出食物而使用共享包时更加方便。
本发明的优选实施例可以提供柔性袋中的把手部分，该把手部分由用于形成袋的包装膜形成，该袋通常是通过成型、填充和密封工艺形成的枕形包。无需使用其他材料来形成把手部分。
在打开密封袋之前，由于提供了优选撕裂方向和撕裂引发元件(例如切口)，因此把手部分被“隐藏”了，但整体存在于袋的包装膜中。
通过沿着撕裂引发元件撕裂而打开密封袋为消费者提供了令人意外和愉悦的体验，即露出了袋内先前“隐藏”的把手部分。
在不脱离由权利要求限定的本发明的范围的情况下，可以对上述实施例进行各种修改。

Claims (25)

1.包装食品，所述包装食品包括：密封袋，所述密封袋在所述密封袋中限定出容纳食品的密封腔，所述密封袋由柔性的包装膜形成，所述柔性的包装膜包括单轴定向的聚合物层，所述单轴定向的聚合物层限定出沿着膜延伸的优选撕裂方向；其中，所述包装膜被构造成形成所述密封袋的第一细长撕开部分和第二细长撕开部分，所述第一细长撕开部分和所述第二细长撕开部分位于所述密封袋的细长中心部分的相对侧上并且邻近于所述密封袋的细长中心部分，所述第一细长撕开部分和所述第二细长撕开部分以及所述细长中心部分沿着所述优选撕裂方向延伸，由此沿着所述优选撕裂方向撕开所述第一细长撕开部分和所述第二细长撕开部分以打开所述密封袋，留下所述细长中心部分，所述细长中心部分形成已打开的袋的把手部分。
2.根据权利要求1所述的包装食品，其中，所述第一细长撕开部分被限定在沿着所述优选撕裂方向延伸的、相互间隔开的第一撕裂线和第二撕裂线之间，所述第二细长撕开部分被限定在沿着所述优选撕裂方向延伸的、相互间隔开的第三撕裂线和第四撕裂线之间，并且所述细长中心部分被限定在相互间隔开的所述第二撕裂线与所述第三撕裂线之间。
3.根据权利要求2所述的包装食品，其中，所述第一撕裂线、所述第二撕裂线、所述第三撕裂线和所述第四撕裂线是在所述包装膜被撕裂之后才形成的虚拟撕裂线。
4.根据权利要求2或权利要求3所述的包装食品，其中，所述第一撕裂线、所述第二撕裂线、所述第三撕裂线和所述第四撕裂线远离至少一个物理撕裂引发元件而延伸，所述至少一个物理撕裂引发元件形成在所述包装膜中并且位于各自的撕裂线的至少一个端部处。
5.根据权利要求4所述的包装食品，其中，所述物理撕裂引发元件包括形成在所述包装膜中的弱化部，所述弱化部远离所述密封腔。
6.根据权利要求5所述的包装食品，其中，所述弱化部包括形成在所述包装膜中的切口，所述切口远离所述密封腔。
7.根据权利要求1至6中任一项所述的包装食品，其中，所述密封袋具有相对的第一密封端部和第二密封端部，并且所述第一细长撕开部分和所述第二细长撕开部分以及所述细长中心部分分别在所述相对的第一密封端部和第二密封端部之间延伸并且连接到所述相对的第一密封端部和第二密封端部。
8.根据附属于权利要求5或权利要求6的权利要求7所述的包装食品，其中，所述弱化部形成在密封端部中的至少一个中。
9.根据权利要求7或权利要求8所述的包装食品，其中，所述密封端部被热密封并且包括各自的密封凸缘，在所述密封凸缘中，多层包装膜被热密封在一起。
10.根据权利要求7至9中任一项所述的包装食品，其中，所述第一密封端部和所述第二密封端部分别包括由所述包装膜形成的各自的折叠角撑板，每个角撑板具有向内折叠边缘以及从所述向内折叠边缘向外延伸的相对的第一壁和第二壁，所述第一壁和所述第二壁中的每个具有邻近于所述向内折叠边缘的各自的下部部分和各自的上部部分，其中，所述细长中心部分包括所述向内折叠边缘以及所述第一壁和所述第二壁的相对的下部部分，并且所述第一细长撕开部分和所述第二细长撕开部分包括所述第一壁和所述第二壁的相对的上部部分。
11.根据附属于权利要求2或附属于权利要求2的任一从属权利要求的权利要求10所述的包装食品，其中，共用的物理撕裂引发元件位于所述第一密封端部和所述第二密封端部中的一个处，由此沿着单个共用的物理撕裂引发元件的撕裂使得沿着所述第一撕裂线、所述第二撕裂线、所述第三撕裂线和所述第四撕裂线撕裂所述包装膜，以将所述第一细长撕开部分和所述第二细长撕开部分与所述细长中心部分分开，所述细长中心部分保持在所述第一密封端部与所述第二密封端部之间。
12.根据权利要求11所述的包装食品，其中，所述共用的物理撕裂引发元件包括切入各自的密封端部的边缘中的凹口。
13.根据权利要求1至12中任一项所述的包装食品，所述包装食品进一步包括纵向密封件，所述纵向密封件可选地为热密封件，所述纵向密封件在所述第一密封端部与所述第二密封端部之间延伸，并且其中，所述细长中心部分与所述纵向密封件间隔开。
14.根据权利要求1至13中任一项所述的包装食品，其中，所述单轴定向的聚合物层是机器轧制的聚合物膜，所述聚合物膜具有机器方向，并且所述优选撕裂方向沿所述机器方向定向。
15.根据权利要求14所述的包装食品，其中，所述单轴定向的聚合物层是聚烯烃层，可选地是聚丙烯层。
16.根据权利要求14或权利要求15所述的包装食品，所述包装食品进一步包括热密封层，所述热密封层在所述单轴定向的聚合物层的后表面上形成涂层，所述后表面向内面向腔。
17.根据权利要求14至16中任一项所述的包装食品，所述包装食品进一步包括阻挡层，所述阻挡层覆盖所述单轴定向的聚合物层的前表面，所述前表面面向外部远离所述腔。
18.根据权利要求17所述的包装食品，其中，所述阻挡层包括金属化聚丙烯层，所述金属化聚丙烯层可选地是双轴定向的。
19.根据权利要求17或权利要求18所述的包装食品，所述包装食品进一步包括印刷层，所述印刷层覆盖所述阻挡层的前表面，所述前表面面向外部远离所述腔。
20.根据权利要求19所述的包装食品，其中，所述印刷层包括透明聚丙烯层，所述透明聚丙烯层可选地是双轴定向的，透明聚丙烯阻挡层被印刷在所述印刷层的后表面上，所述后表面向内面向所述腔。
21.根据权利要求19或权利要求20所述的包装食品，所述包装食品进一步包括将所述印刷层粘合到所述阻挡层的粘合剂层。
22.根据权利要求1至21中任一项所述的包装食品，其中，所述食品包括休闲食品，可选地是其中，包装休闲食品包括薯片、薯条、玉米片、点心片、坚果、或者油炸或烘烤的休闲食品块，进一步可选地是其中，所述包装食品包括单份休闲食品，所述单份休闲食品的重量为20克至75克，且不超过75克，或者所述包装食品包括多份休闲食品，所述多份休闲食品的总重量大于75克。
23.层压聚合物柔性包装膜，所述层压聚合物柔性包装膜包括：单轴定向的聚合物层，所述单轴定向的聚合物层是机器轧制的聚合物膜，所述机器轧制的聚合物膜具有机器方向，并且优选撕裂方向沿着所述机器方向定向；热密封层，所述热密封层在所述单轴定向的聚合物层的第一表面上形成涂层；阻挡层，所述阻挡层具有后表面，所述后表面覆盖所述单轴定向的聚合物层的与所述第一表面相对的第二表面；以及印刷层，所述印刷层覆盖所述阻挡层的与所述后表面相对的前表面。
24.根据权利要求23所述的层压聚合物膜，其中，所述单轴定向的聚合物层是聚丙烯层，所述阻挡层包括金属化聚丙烯层，并且所述印刷层包括透明聚丙烯层，并且可选地还包括将所述印刷层粘合到所述阻挡层的粘合剂层。
25.根据权利要求24所述的包装食品，其中，所述阻挡层和所述印刷层中的至少一个或两者是双轴定向的。
CN201980050697.4A 2018-09-20 2019-09-19 包装食品 Pending CN112512935A (zh)

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