WO2023005364A1 - 一种可降解的气调包装容器 - Google Patents

一种可降解的气调包装容器 Download PDF

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Publication number
WO2023005364A1
WO2023005364A1 PCT/CN2022/093341 CN2022093341W WO2023005364A1 WO 2023005364 A1 WO2023005364 A1 WO 2023005364A1 CN 2022093341 W CN2022093341 W CN 2022093341W WO 2023005364 A1 WO2023005364 A1 WO 2023005364A1
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bopla
container
utility
model
modified atmosphere
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PCT/CN2022/093341
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English (en)
French (fr)
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周世革
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苏州丰连实业有限公司
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Priority to JP2022600140U priority Critical patent/JP3247411U/ja
Publication of WO2023005364A1 publication Critical patent/WO2023005364A1/zh

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    • 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
    • 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
    • B65D1/40—Details of walls
    • 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
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/46—Applications of disintegrable, dissolvable or edible materials
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
    • Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics

Definitions

  • the utility model belongs to the technical field of containers, in particular to a degradable modified atmosphere packaging container.
  • Container refers to the basic device used to hold materials and mainly includes shells.
  • Degradable materials are materials that can be degraded in the sense of thermodynamics and kinetics within a period of time, and are classified according to the external factors of degradation. , can be divided into: photodegradable materials, biodegradable materials, etc., and the main influencing factors are temperature, molecular weight, material structure, etc.
  • the utility model provides a degradable modified atmosphere packaging container, which has the characteristics of convenient use, good heat resistance, high strength and high degradation degree.
  • a degradable modified atmosphere packaging container including a BOPLA film and a container body, the container body includes a BOPLA surface layer and a composite base layer; the BOPLA surface layer is molded on the composite layer top of base.
  • the thickness of the BOPLA film is equal to that of the BOPLA surface layer and is 0.3-0.5 times the thickness of the composite base layer.
  • the top of the outer surface of the container body has a first bending edge bent outward, and a downward bending edge is provided on the periphery of the first bending edge. Bend number two.
  • the No. 2 bending edge is bent into an oblique shape, and the inclination angle of the No. 2 bending edge is 30°-40°.
  • the main body of the container is provided with corrugated parts.
  • the beneficial effect of the utility model is: the container of the utility model, the mixing of polylactic acid and polybutylene terephthalate-adipate, makes the material have the characteristics of both materials, It has the rigidity of polylactic acid and the flexibility of polybutylene terephthalate-adipate; the mixture of bio-based degradable materials and petroleum-based degradable materials reduces the use and dependence on bio-based degradable materials , to achieve the full degradation of the container as a whole, with a better degradation effect, which is of great significance to the sustainable development of the environment.
  • Fig. 1 is the structural representation of the utility model
  • Fig. 2 is a schematic diagram of the shaft side structure of the utility model
  • a degradable modified atmosphere packaging container including a BOPLA film 1, a cover body 4 and a container body 5, and the container body 5 includes a BOPLA surface layer 2 and a composite base layer 3 ;
  • the BOPLA surface layer 2 is molded on the upper end of the composite base layer 3, which achieves the overall full degradation and has a better degradation effect, which is of great significance to the sustainable development of the environment.
  • the composite base layer 3 it is polylactic acid PLA It is mixed with polybutylene terephthalate-adipate PBAT at a ratio of 50:50 and then extruded as a substrate layer.
  • the BOPLA surface layer 2 is a single material of polylactic acid.
  • the composite base layer 3 The polylactic acid and the polylactic acid of the BOPLA surface layer 2 are extruded into a sheet through a twin-screw extruder by means of multi-layer co-extrusion, and the sheet is then subjected to blister molding to make a container.
  • the BOPLA film 1 and the container main body 5 can be bonded together by heat sealing, and the entire heat sealing environment is filled with nitrogen, and the shelf life of food can be extended by nitrogen filling.
  • the thickness of the BOPLA film 1 and the BOPLA surface layer 2 is equal and is 0.3 times-0.5 times of the thickness of the composite base layer 3, such as 0.3 times, 0.4 times and 0.5 times, the specific size Customized processing as needed.
  • the top of the outer surface of the container body 5 has a first bending edge 502 bent toward the outside, and a downward bending edge on the periphery of the first bending edge 502 .
  • the second bent edge 503 of the bend when the BOPLA film 1 and the container main body 5 are bonded together by means of heat sealing, the bending position can improve the heat sealing performance of the BOPLA film 1 and the container main body 5. stability.
  • the second bending edge 503 is bent into an oblique shape, and the inclination angle of the second bending edge 503 is 30-40 degrees, such as 30 degrees, 35 degrees and 40 degrees, the inclination angle of the No. 2 bending edge 503 of the present embodiment is 30 degrees, after the BOPLA film 1 and the container main body 5 are bonded together through the heat-sealing mode, the BOPLA can be improved through the bending position.
  • the stability of the heat seal between the film 1 and the container body 5 is referred to Figure 2, in this embodiment, the second bending edge 503 is bent into an oblique shape, and the inclination angle of the second bending edge 503 is 30-40 degrees, such as 30 degrees, 35 degrees and 40 degrees, the inclination angle of the No. 2 bending edge 503 of the present embodiment is 30 degrees, after the BOPLA film 1 and the container main body 5 are bonded together through the heat-sealing mode, the BOPLA can be improved through the bending position.
  • the container main body 5 has a corrugated portion 501, therefore, the container main body 5 can have a certain deformation ability in a horizontal state, which is beneficial to dismounting the cover from the container main body 5.
  • the body 4 can avoid damage to the main body 5 of the container due to thermal expansion and contraction when storing hot objects.
  • the container of the utility model can store items in the container main body 5, and the BOPLA film 1 and the container main body 5 can be bonded together by heat sealing, and the entire heat sealing environment Medium, filled with nitrogen, through the way of nitrogen filling, the food shelf life is extended;
  • the composite base layer 3 is polylactic acid PLA and polybutylene terephthalate adipate PBAT mixed according to the ratio of 50:50 and then extruded as the base layer.
  • the BOPLA surface layer 2 is a single material of polylactic acid, because the same material Affinity, the polylactic acid of the composite base layer 3 and the polylactic acid of the BOPLA surface layer 2 are extruded into a sheet through a twin-screw extruder through multi-layer co-extrusion, and the sheet is then formed into a container by blister molding. During the process, it can be bonded together with the BOPLA film 1 through heat sealing, and the entire heat sealing environment is filled with nitrogen, and the shelf life of food can be extended by filling nitrogen.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Food Science & Technology (AREA)
  • Packages (AREA)
  • Wrappers (AREA)

Abstract

本实用新型属于容器技术领域，尤其为一种可降解的气调包装容器，包括BOPLA膜和容器主体，所述容器主体包括BOPLA表层和复合基层；所述BOPLA表层成型在所述复合基层的上端，所述容器主体的外侧面顶端带有朝向外侧弯折的一号弯折边，在所述一号弯折边的周缘带有朝下弯折的二号弯折边；本实用新型的容器，聚乳酸与聚对苯二甲酸-己二酸丁二醇酯的混合，使材料兼具两种材料的特性，具备聚乳酸的刚性和聚对苯二甲酸-己二酸丁二醇酯的柔韧性；生物基可降解材料与石油基可降解材料的混合，降低了对生物基可降解材料的使用与依赖性，达到了容器整体的全降解，具有较佳的降解效果，对环境的可持续发展具有十分重大的意义。

Description

一种可降解的气调包装容器 技术领域
本实用新型属于容器技术领域，具体涉及一种可降解的气调包装容器。
背景技术
容器是指用以容纳物料并以壳体为主的基本装置。
随着科学技术的发展，以及人们对环境健康的重视，可降解材料逐步兴起，可降解材料是在一段时间内，在热力学和动力学意义上均可降解的材料，按降解的外因因素来分，可分为：光降解材料、生物降解材料等，影响因素主要有温度、分子量、材料结构等。
现有使用盖膜类包装容器，多数为不可降解材质，聚乳酸的容器可以配合BOPLA膜类盖材进行热封合，但是容器整体强度不足，单种聚对苯二甲酸-己二酸丁二醇酯的可降解片材及容器无法与可降解膜类盖材进行热封合，单种聚乳酸可降解片材及容器与BOPLA膜类盖材进行热封合，PLA容器成本较高，且耐热性较差。
实用新型内容
为解决现有技术中存在的上述问题，本实用新型提供了一种可降解的气调包装容器，具有使用方便、耐热性好、强度高以及降解程度高的特点。
为实现上述目的，本实用新型提供如下技术方案：一种可降解的气调包装容器，包括BOPLA膜和容器主体，所述容器主体包括BOPLA表层和复合基层；所述BOPLA表层成型在所述复合基层的上端。
作为本实用新型的一种优选技术方案，所述BOPLA膜与所述BOPLA表层的厚度相等并为所述复合基层厚度的0.3倍-0.5倍。
作为本实用新型的一种优选技术方案，所述容器主体的外侧面顶端带有朝向外侧弯折的一号弯折边，在所述一号弯折边的周缘带有朝下弯折的二号弯折边。
作为本实用新型的一种优选技术方案，所述二号弯折边弯折成倾斜状，且所述二号弯折边的倾斜角度为30度-40度。
作为本实用新型的一种优选技术方案，所述容器主体上带有波纹部。
与现有技术相比，本实用新型的有益效果是：本实用新型的容器，聚乳酸与聚对苯二甲酸-己二酸丁二醇酯的混合，使材料兼具两种材料的特性，具备聚乳酸的刚性和聚对苯二甲酸-己二酸丁二醇酯的柔韧性；生物基可降解材料与石油基可降解材料的混合，降低了对生物基可降解材料的使用与依赖性，达到了容器整体的全降解，具有较佳的降解效果，对环境的可持续发展具有十分重大的意义。
附图说明
附图用来提供对本实用新型的进一步理解，并且构成说明书的一部分，与本实用新型的实施例一起用于解释本实用新型，并不构成对本实用新型的限制。在附图中：
图1为本实用新型的结构示意图；
图2为本实用新型的轴侧结构示意图；
图中：1、BOPLA膜；2、BOPLA表层；3、复合基层；5、容器主体；501、波纹部；502、一号弯折边；503、二号弯折边。
具体实施方式
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本实用新型一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。
请参阅图1-图2，本实用新型提供以下技术方案：一种可降解的气调包装容器，包括BOPLA膜1和盖体4和容器主体5，容器主体5包括BOPLA表层 2和复合基层3；BOPLA表层2成型在复合基层3的上端，达到了整体的全降解，具有较佳的降解效果，对环境的可持续发展具有十分重大的意义，实际上，对于复合基层3，为聚乳酸PLA与聚对苯二甲酸-己二酸丁二醇酯PBAT按照50：50比例混合后作为基材层挤出，BOPLA表层2为聚乳酸单种材料，因相同材料的亲和性，复合基层3的聚乳酸和BOPLA表层2的聚乳酸，通过多层共挤的方式，经过双螺杆挤出机挤出片材，片材再经过过吸塑成型制成容器。
使用过程中，可将BOPLA膜1与容器主体5经过热封合的方式，粘合在一起，整个热封环境中，充满氮气，通过充氮气的方式，使食品保质期延长。
具体的，根据附图1所示，本实施例中，BOPLA膜1与BOPLA表层2的厚度相等并为复合基层3厚度的0.3倍-0.5倍，如0.3倍、0.4倍和0.5倍，具体尺寸根据需要进行加工定制。
具体的，根据附图2所示，本实施例中，容器主体5的外侧面顶端带有朝向外侧弯折的一号弯折边502，在一号弯折边502的周缘带有朝下弯折的二号弯折边503，当BOPLA膜1与容器主体5经过热封合的方式，粘合在一起后，通过该弯折部位，能够提高BOPLA膜1与容器主体5热封合的稳定性。
具体的，根据附图2所示，本实施例中，二号弯折边503弯折成倾斜状，且二号弯折边503的倾斜角度为30度-40度，如30度、35度和40度，本实施例二号弯折边503的倾斜角度为30度，当BOPLA膜1与容器主体5经过热封合的方式，粘合在一起后，通过该弯折部位，能够提高BOPLA膜1与容器主体5热封合的稳定性。
具体的，根据附图2所示，本实施例中，容器主体5上带有波纹部501，因此，容器主体5可在水平状态上具有一定的形变能力，有利于从容器主体5上拆卸盖体4，能够避免储存热物时由于热胀冷缩效应导致容器主体5损坏。
本实用新型的工作原理及使用流程：本实用新型的容器，物品可存储在 容器主体5内，可将BOPLA膜1与容器主体5经过热封合的方式，粘合在一起，整个热封环境中，充满氮气，通过充氮气的方式，使食品保质期延长；
复合基层3为聚乳酸PLA与聚对苯二甲酸-己二酸丁二醇酯PBAT按照50：50比例混合后作为基材层挤出，BOPLA表层2为聚乳酸单种材料，因相同材料的亲和性，复合基层3的聚乳酸和BOPLA表层2的聚乳酸，通过多层共挤的方式，经过双螺杆挤出机挤出片材，片材再经过过吸塑成型制成容器，使用过程中，可与BOPLA膜1经过热封合的方式，粘合在一起，整个热封环境中，充满氮气，通过充氮气的方式，使食品保质期延长。
最后应说明的是：以上所述仅为本实用新型的优选实施例而已，并不用于限制本实用新型，尽管参照前述实施例对本实用新型进行了详细的说明，对于本领域的技术人员来说，其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换。凡在本实用新型的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本实用新型的保护范围之内。

Claims (5)

  1. 一种可降解的气调包装容器，包括BOPLA膜(1)和容器主体(5)，其特征在于：所述容器主体(5)包括BOPLA表层(2)和复合基层(3)；所述BOPLA表层(2)成型在所述复合基层(3)的上端。
  2. 根据权利要求1所述的一种可降解的气调包装容器，其特征在于：所述BOPLA膜(1)与所述BOPLA表层(2)的厚度相等并为所述复合基层(3)厚度的0.3倍-0.5倍。
  3. 根据权利要求1所述的一种可降解的气调包装容器，其特征在于：所述容器主体(5)的外侧面顶端带有朝向外侧弯折的一号弯折边(502)，在所述一号弯折边(502)的周缘带有朝下弯折的二号弯折边(503)。
  4. 根据权利要求3所述的一种可降解的气调包装容器，其特征在于：所述二号弯折边(503)弯折成倾斜状，且所述二号弯折边(503)的倾斜角度为30度-40度。
  5. 根据权利要求1所述的一种可降解的气调包装容器，其特征在于：所述容器主体(5)上带有波纹部(501)。
PCT/CN2022/093341 2021-07-26 2022-05-17 一种可降解的气调包装容器 WO2023005364A1 (zh)

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