WO2021189605A1 - 一种新型金属包装容器 - Google Patents

一种新型金属包装容器 Download PDF

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Publication number
WO2021189605A1
WO2021189605A1 PCT/CN2020/089141 CN2020089141W WO2021189605A1 WO 2021189605 A1 WO2021189605 A1 WO 2021189605A1 CN 2020089141 W CN2020089141 W CN 2020089141W WO 2021189605 A1 WO2021189605 A1 WO 2021189605A1
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Prior art keywords
packaging container
metal packaging
metal
container body
container according
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PCT/CN2020/089141
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English (en)
French (fr)
Inventor
李岳云
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广东粤东机械实业有限公司
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Publication of WO2021189605A1 publication Critical patent/WO2021189605A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/10—Jars, e.g. for preserving foodstuffs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/12—Cans, casks, barrels, or drums
    • B65D1/14—Cans, casks, barrels, or drums characterised by shape
    • B65D1/16—Cans, casks, barrels, or drums characterised by shape of curved cross-section, e.g. cylindrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/22—Boxes or like containers with side walls of substantial depth for enclosing contents
    • B65D1/26—Thin-walled containers, e.g. formed by deep-drawing operations
    • B65D1/28—Thin-walled containers, e.g. formed by deep-drawing operations formed of laminated material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/14—Linings or internal coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/22—Details
    • B65D77/30—Opening or contents-removing devices added or incorporated during filling or closing of containers

Definitions

  • the utility model relates to a container, in particular to a new type of metal packaging container.
  • metal packaging containers have the advantage of long shelf life for storing food, many foods are packaged in metal packaging containers, such as various cans.
  • Existing cans generally use tinplate, and the can body is sealed with the can lid, and it is inconvenient to seal and open the lid. Later, although there are easy-open cans, opening the hard lid still feels laborious and inconvenient, and sometimes hurts people.
  • the technical problem to be solved by the utility model is to provide a new type of metal packaging container, which not only has high structural strength, is not easy to be deformed, but also is convenient to seal and open.
  • the technical solutions adopted are as follows:
  • a new type of metal packaging container including a container body, the top of the container body is provided with an opening.
  • the opening is arranged in the circumferential direction, and the upper surface of the flanging is on a horizontal surface; the outer edge of the flanging is provided with a downward curling, and the uppermost part of the flanging is flush with the upper surface of the flanging;
  • the metal packaging container further includes a sealing sheet, the sealing sheet is located above the opening, and the lower surface of the sealing sheet and the upper surface of the flange are sealed together.
  • the above-mentioned film-coated iron made of the container body includes a metal plate and a plastic film compounded on the inner side of the metal plate.
  • the metal plate is a stainless steel plate
  • the plastic film is a PP film
  • the above-mentioned metal sheet is tinplate, and the plastic film is a PP film.
  • the above-mentioned metal plates can also be selected from aluminum plates, cold-rolled plates or galvanized plates.
  • the thickness of the metal sheet in the container body is 0.17-0.20 mm.
  • the thickness of the metal sheet in the container body is 0.19 mm.
  • the above-mentioned sealing sheet is composed of an aluminum foil layer and a heat-sealing layer compounded on the lower side of the aluminum foil layer.
  • the lower surface of the heat-sealing layer and the upper surface of the flange are sealed together.
  • the layer is composed of PP.
  • the thickness of the sealing sheet is 0.13 mm to 0.16 mm. In a more preferred embodiment, the thickness of the sealing sheet is 0.15 mm.
  • the flanged surface has annular protrusions.
  • an outer protective layer is provided on the outer surface of the container body.
  • the above-mentioned outer protective layer is a PP film.
  • a printing layer can be provided on the inner side or the outer side of the outer protective layer.
  • the container body is box-shaped or can-shaped, and its cross-sectional shape can be one of a circle, an ellipse, a triangle, a square, a rectangle, a hexagon, an octagon, and the like.
  • the above-mentioned new metal packaging container can be suitable for packaging methods that need to be vacuumed and then filled with nitrogen, and can also be suitable for production requirements for sterilization by placing it in a high temperature environment (such as 121°C-125°C) after the sealing is completed.
  • a high temperature environment such as 121°C-125°C
  • the new metal packaging containers can be used as packaging containers for a variety of foods, and are divided into the following three categories according to their capacity: (1) Small-capacity packaging containers: used to store honey, condiments, butter and cheese, etc.; (2) Medium-capacity Packaging container: used to store egg tarts, double skin milk, fancy high-end dairy products, high-end nutritional products (such as bird's nest, sea cucumber, snow clam), soup, porridge and Southeast Asian specialty foods, etc.; (3) Large-capacity packaging container: used It is used to store meat, fish, pet food, dessert porridge (eight-treasure porridge), emergency food, etc.
  • the body of the container is made of coated iron. Because the coated iron is a metal functional material with the dual characteristics of plastic film and metal plate, it has excellent processing performance, deep drawing resistance, wear resistance, and The advantages of easy forming and not easy to break during processing make the overall structural strength of the container body high, and the design of flanging and curling can greatly strengthen the strength of the opening of the container body to ensure that the entire container body is not easily deformed; for plastic film To prevent the metal from directly contacting the food and contaminate the food, and to provide the ability to seal the lower surface of the sealing sheet on the upper surface of the flange.
  • the sealing sheet When sealing the container body, first place the sealing sheet above the opening, and make the edge part of the sealing sheet correspond to the position of the flange, and then seal the lower surface of the sealing sheet and the upper surface of the flange together. Since the upper surface of the flanging is on a horizontal surface, and the uppermost part of the flanging is flush with the upper surface of the flanging, the accuracy of the position of the sealing sheet is low when sealing, even if the position of the sealing sheet is slightly The deviation can also be successfully sealed, and the sealing is convenient, and the sealed metal packaging container has good sealing and barrier properties, which can reduce the use of preservatives and effectively extend the shelf life of food (generally up to 18-20 months ).
  • the container body When opening the container body, pinch one end of the sealing piece and pull the sealing piece in the opposite direction, so that the lower surface of the sealing piece is gradually separated from the upper surface of the flanging, and it can be opened conveniently. After consumers have eaten the food in the new metal packaging container, they can clean the container body and use it as a daily food container.
  • the container body and the sealing sheet are made of recyclable materials, which is more environmentally friendly.
  • Fig. 1 is a schematic diagram of the structure of a preferred embodiment of the present invention.
  • Figure 2 is an enlarged view of A in Figure 1;
  • Fig. 3 is a schematic structural diagram of another embodiment of the present invention.
  • this new type of metal packaging container includes a container body 1 and a sealing sheet 2.
  • the container body 1 is made of coated iron.
  • the top of the container body 1 is provided with an opening 11, and the opening 11 is provided with a
  • the flange 12 extends outward, and the flange 12 is arranged along the circumference of the opening 11.
  • the upper surface of the flange 12 is on a horizontal plane; the outer edge of the flange 12 is provided with a curling edge 13 that is rolled downward, and the flange is curled
  • the uppermost part of 13 is flush with the upper surface of the flange 12;
  • the sealing sheet 2 is located above the opening 11, and the lower surface of the sealing sheet 2 and the upper surface of the flange 12 are sealed together.
  • the coated iron made of the container body 1 includes a metal plate 101 and a plastic film 102 compounded on the inner side of the metal plate 101.
  • the wall thickness of the metal plate 101 is 0.19 mm, and the metal plate 101 is a stainless steel plate or tinplate.
  • the plastic film 102 is a PP film.
  • the sealing sheet 2 is composed of an aluminum foil layer 201 and a heat sealing layer 202 compounded on the lower side of the aluminum foil layer 201.
  • the lower surface of the heat sealing layer 202 and the upper surface of the flange 12 are sealed together, and the aluminum foil layer 201 It is composed of aluminum foil, and the heat-sealing layer 202 is composed of PP.
  • the thickness of the sealing sheet 2 is 0.15 mm.
  • the sealing sheet 2 is first placed on the opening 11, and the edge portion of the sealing sheet 2 corresponds to the position of the flange 12, and then the lower surface of the sealing sheet 2 is connected to the flange 12
  • the upper surfaces of 12 are sealed together, and the sealed metal packaging container has good sealing and barrier properties, which can reduce the use of preservatives and effectively extend the shelf life of food.
  • the container body 1 pinch one end of the sealing sheet 2 (usually referred to as the lug part) and pull the sealing sheet 2 in the opposite direction, so that the lower surface of the sealing sheet 2 and the upper surface of the flange 12 are gradually separated. Turn it on.
  • the container body 1 can be cleaned and used as a daily food container.
  • annular protrusions are provided on the surface of the flange 12.
  • the annular protrusions may be continuous or discontinuous.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Packages (AREA)
  • Food Science & Technology (AREA)
  • Wrappers (AREA)

Abstract

一种新型金属包装容器，包括容器本体（1），容器本体（1）的顶部设有开口（11），容器本体（1）采用覆膜铁制成，开口（11）处设有向外延伸的翻边（12），且翻边（12）沿开口（11）的周向设置，翻边（12）的上表面处在一水平面上；翻边（12）的外边缘设有向下翻卷的卷边（13），且卷边（13）的最上部与翻边（12）的上表面相平齐；新型金属包装容器还包括封口片（2），封口片（2）处在开口（11）上面，且封口片（2）的下表面与翻边（12）的上表面封合在一起。

Description

一种新型金属包装容器 技术领域
本实用新型涉及容器，具体涉及一种新型金属包装容器。
背景技术
由于金属包装容器保存食品具有保质期长的优点，所以许多食品采用金属包装容器包装，如各种罐头。现有的罐头一般采用马口铁，其罐身与罐盖密封连接，封口及开盖均较为不便；后来虽然有易拉罐，但打开坚硬的罐盖仍感费力和不便，有时还会伤人。
实用新型内容
本实用新型所要解决的技术问题是提供一种新型金属包装容器，这种新型金属包装容器不仅结构强度高，不易发生变形，而且封口、开启方便。采用的技术方案如下：
一种新型金属包装容器，包括容器本体，容器本体的顶部设有开口，其特征在于：所述容器本体采用覆膜铁制成，所述开口处设有向外延伸的翻边，且翻边沿开口的周向设置，翻边的上表面处在一水平面上；翻边的外边缘设有向下翻卷的卷边，且卷边的最上部与翻边的上表面相平齐；所述新型金属包装容器还包括封口片，封口片处在所述开口上面，且封口片的下表面与翻边的上表面封合在一起。
优选方案中，上述制成所述容器本体的所述覆膜铁包括金属板材和复合在金属板材内侧的塑料薄膜。
一种更优选方案中，上述金属板材为不锈钢板，所述塑料薄膜为PP膜。
另一种更优选方案中，上述金属板材为马口铁，所述塑料薄膜为PP膜。
上述金属板材还可选用铝板、冷轧板或镀锌板。
更优选方案中，上述容器本体中金属板材的壁厚为0.17－0.20mm。
进一步更优选方案中，上述容器本体中金属板材的壁厚为0.19mm。
优选方案中，上述封口片由铝箔层和复合在铝箔层下侧的热封层构成，热封层的下表面与所述翻边的上表面封合在一起，铝箔层由铝箔构成，热封层由PP构成。
优选方案中，上述封口片的厚度为0.13mm－0.16mm。更优选方案中，上述封口片的厚度为0.15mm。
优选方案中，所述翻边表面具有环形凸起。
优选方案中，上述容器本体的外侧面上设有外保护层。更优选方案中，上述外保护层为PP膜。外保护层的内侧面或外侧面上可设有印刷层。
通常，上述容器本体呈盒状或罐状，其横截面形状可以为圆形、椭圆形、三角形、四方形、长方形、六角形、八角形等中的一种。
上述新型金属包装容器能够适用于需要抽真空后充氮气的包装方式，也能够适用于在完成封口后置于高温环境下(如121℃－125℃)进行杀菌的生产需求。新型金属包装容器可以作为多种食品的包装容器，按容量大小主要分为下列三类：(1)小容量包装容器：用于存储蜂蜜，调味品，牛油以及奶酪等；(2)中容量包装容器：用于存储蛋挞，双皮奶，花式高端奶制品，高端营养品(如燕窝、海参、雪蛤)，汤料，粥类及东南亚特色食品等；(3)大容量包装容器：用于存储肉类、鱼类、宠物食品、甜品粥(八宝粥)、应急食品等。
本实用新型的新型金属包装容器中，容器本体采用覆膜铁制成，由于覆膜铁兼有塑料薄膜和金属板材双重特点的金属功能材料，加工性能优良，具有耐深冲、耐磨，在加工中易成形、不易破损等优点，使得容器本体的整体结构强度高，并且翻边和卷边的设计可以很大程度上加强容器本体开口处的强度，确保容器本体整体不易变形；塑料薄膜用于防止金属直接接触食品而对食品造成污染，并且提供封口片的下表面能够封合在翻边的上表面的能力。在对容器本 体进行封口时，先将封口片放置在开口上面，并使封口片的边沿部分与翻边的位置相对应，再将封口片的下表面与翻边的上表面封合在一起，由于翻边的上表面处在一水平面上，卷边的最上部与翻边的上表面相平齐，因此在进行封口时对封口片放置位置的精准度要求较低，即使封口片位置略有偏差也能顺利完成封口，封口方便，并且封口后的金属包装容器具有良好的密封性和阻隔性能，这样可减少防腐剂的使用，并有效延长对食品的保质期(一般可达到18－20个月)。在开启容器本体时，捏住封口片一端并反向拉动封口片，使封口片的下表面与翻边的上表面逐渐分离开，即可方便地将其打开。在消费者食用完新型金属包装容器中的食品后，可将容器本体清洗干净，将其作为日常盛放食品的容器使用。另外，上述容器本体、封口片均采用可回收利用的材料制成，使用更环保。
附图说明
图1是本实用新型优选实施例的结构示意图。
图2是图1的A处放大图；
图3是本实用新型的另一实施例的结构示意图。
具体实施方式
如图1、图2所示，这种新型金属包装容器包括容器本体1和封口片2，容器本体1采用覆膜铁制成，容器本体1的顶部设有开口11，开口11处设有向外延伸的翻边12，且翻边12沿开口11的周向设置，翻边12的上表面处在一水平面上；翻边12的外边缘设有向下翻卷的卷边13，且卷边13的最上部与翻边12的上表面相平齐；封口片2处在开口11上面，且封口片2的下表面与翻边12的上表面封合在一起。
在本实施例中，制成容器本体1的覆膜铁包括金属板材101和复合在金属板材101内侧的塑料薄膜102，金属板材101的壁厚为0.19mm，金属板材101 为不锈钢板或马口铁，塑料薄膜102为PP膜。
在本实施例中，封口片2由铝箔层201和复合在铝箔层201下侧的热封层202构成，热封层202的下表面与翻边12的上表面封合在一起，铝箔层201由铝箔构成，热封层202由PP构成。封口片2的厚度为0.15mm。
下面简述一下本新型金属包装容器的使用方法：
在将食品装填至容器本体1中后，先将封口片2放置在开口11上面，并使封口片2的边沿部分与翻边12的位置相对应，再将封口片2的下表面与翻边12的上表面封合在一起，封口后的金属包装容器具有良好的密封性和阻隔性能，可减少防腐剂的使用，并有效延长对食品的保质期。在开启容器本体1时，捏住封口片2一端(一般指凸耳部分)并反向拉动封口片2，使封口片2的下表面与翻边12的上表面逐渐分离开，即可方便地将其打开。在消费者食用完新型金属包装容器中的食品后，可将容器本体1清洗干净，将其作为日常盛放食品的容器使用。
在另一种可选择的实施例中，在上述的基础上，在翻边12表面设置环形凸起，环形凸起可以为连续，也可以为不连续，通过设置环形凸起，提高封口片2与翻边12的结合强度。
此外，需要说明的是，本说明书中所描述的具体实施例，其各部分名称等可以不同，凡依本实用新型专利构思所述的构造、特征及原理所做的等效或简单变化，均包括于本实用新型专利的保护范围内。本实用新型所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，只要不偏离本实用新型的结构或者超越本权利要求书所定义的范围，均应属于本实用新型的保护范围。

Claims (10)

  1. 一种新型金属包装容器，包括容器本体，容器本体的顶部设有开口，其特征在于：所述容器本体采用覆膜铁制成，所述开口处设有向外延伸的翻边，且翻边沿开口的周向设置，翻边的上表面处在一水平面上；翻边的外边缘设有向下翻卷的卷边，且卷边的最上部与翻边的上表面相平齐；所述新型金属包装容器还包括封口片，封口片处在所述开口上面，且封口片的下表面与翻边的上表面封合在一起。
  2. 根据权利要求1所述的新型金属包装容器，其特征在于：制成所述容器本体的所述覆膜铁包括金属板材和复合在金属板材内侧的塑料薄膜。
  3. 根据权利要求2所述的新型金属包装容器，其特征在于：所述金属板材为不锈钢板，所述塑料薄膜为PP膜。
  4. 根据权利要求2所述的新型金属包装容器，其特征在于：所述金属板材为马口铁，所述塑料薄膜为PP膜。
  5. 根据权利要求2－4任一项所述的新型金属包装容器，其特征在于：所述容器本体中金属板材的壁厚为0.17－0.20mm。
  6. 根据权利要求5所述的新型金属包装容器，其特征在于：所述容器本体中金属板材的壁厚为0.19mm。
  7. 根据权利要求1－4任一项所述的新型金属包装容器，其特征在于：所述封口片由铝箔层和复合在铝箔层下侧的热封层构成，热封层的下表面与所述翻 边的上表面封合在一起，铝箔层由铝箔构成，热封层由PP构成。
  8. 根据权利要求7所述的新型金属包装容器，其特征在于：所述封口片的厚度为0.13mm－0.16mm。
  9. 根据权利要求8所述的新型金属包装容器，其特征在于：所述翻边表面具有环形凸起。
  10. 根据权利要求1－4任一项所述的新型金属包装容器，其特征在于：所述容器本体的外侧面上设有外保护层，外保护层为PP膜。
PCT/CN2020/089141 2020-03-26 2020-05-08 一种新型金属包装容器 WO2021189605A1 (zh)

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