WO2019174651A1 - Magnetic adhesive, magnetically separable and recyclable packaging container, and packaging waste recycling method - Google Patents

Magnetic adhesive, magnetically separable and recyclable packaging container, and packaging waste recycling method Download PDF

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Publication number
WO2019174651A1
WO2019174651A1 PCT/CN2019/086219 CN2019086219W WO2019174651A1 WO 2019174651 A1 WO2019174651 A1 WO 2019174651A1 CN 2019086219 W CN2019086219 W CN 2019086219W WO 2019174651 A1 WO2019174651 A1 WO 2019174651A1
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Prior art keywords
magnetic
container
adhesive
packaging
hot melt
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PCT/CN2019/086219
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French (fr)
Chinese (zh)
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刘华
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刘华
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Publication of WO2019174651A1 publication Critical patent/WO2019174651A1/en

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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
    • B65D23/00—Details of bottles or jars not otherwise provided for
    • B65D23/08—Coverings or external coatings
    • B65D23/0842—Sheets or tubes applied around the bottle with or without subsequent folding operations
    • B65D23/085—Sheets or tubes applied around the bottle with or without subsequent folding operations and glued or otherwise sealed to the bottle
    • 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
    • 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
    • B65D23/00—Details of bottles or jars not otherwise provided for
    • 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
    • B65D25/34—Coverings or external coatings
    • B65D25/36—Coverings or external coatings formed by applying sheet 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/22—Details
    • B65D77/24—Inserts or accessories added or incorporated during filling of containers
    • B65D77/28—Cards, coupons, or drinking straws
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/04—Non-macromolecular additives inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
    • C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
    • C09J123/04—Homopolymers or copolymers of ethene
    • C09J123/08—Copolymers of ethene
    • C09J123/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C09J123/0853—Vinylacetate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J9/00—Adhesives characterised by their physical nature or the effects produced, e.g. glue sticks
    • 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
    • B65D2203/00—Decoration means, markings, information elements, contents indicators
    • B65D2203/02—Labels
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/08—Metals
    • C08K2003/0856—Iron
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/003—Additives being defined by their diameter
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/005—Additives being defined by their particle size in general
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/01—Magnetic additives

Definitions

  • the invention relates to a packaging material which is convenient for packaging and recycling, and a manufacturing and recycling method thereof.
  • the world today advocates environmental protection, low carbon, natural conservation, and recycling of resources.
  • the environment provides the necessary resources and conditions for our survival and development. It is the basic premise for human survival and development. It is an urgent task to protect the environment to hobby resources, protect resources, conserve resources and recycle resources.
  • the amount of garbage generated every year is also increasing year by year. Maximizing the reuse of garbage resources, reducing the amount of garbage disposal, and improving the quality of the living environment are among the urgent issues of common concern in the world.
  • China is currently implementing an extension system for producer responsibility.
  • the system refers to the system that extends the resource and environmental responsibility of producers for their products from the production process to the whole life cycle of product design, circulation consumption, recycling and waste disposal.
  • the key task is to take the lead in determining the implementation of the producer extension system for four types of products, such as electrical and electronic, automotive, lead-acid batteries and beverage-based composite packaging. Actively carry out recycling and reuse to protect resources and protect the environment.
  • China is a big consumer of beverage-based composite packaging, with an annual consumption of 80 billion to 100 billion bales.
  • Beverage paper-based composite packaging is usually a paper-plastic aluminum composite packaging. It is a composite material of paper, aluminum foil and polyethylene plastic.
  • the content of long-fiber high-quality pulp, aluminum and plastic is about 75% cardboard and 5% respectively.
  • the package has 6 layers and is highly recycled. Paper-plastic aluminum composite packaging can not be naturally degraded, and if it is not treated, it will not be degraded in a hundred years. So this is a non-environmental packaging material.
  • garbage sorting centers have been established in major domestic small and medium-sized cities and rural towns and towns in order to achieve the goal of recycling national environmental waste.
  • the use of different valuable materials in the waste is sorted out by means of air separation, water selection and magnetic separation equipment in the sorting equipment.
  • the problem of recycling paper-plastic aluminum composite packaging has not been well solved.
  • Over the years a lot of work has been done in various aspects, such as campus education, community publicity, and scavenger efforts. It is also only a 10%-15% recovery rate. For a large number of 75%-85% of discarded packaging are transferred to domestic garbage.
  • the recycling of these packages is of great economic value, and the waste packaging can be used to process pulp, aluminum powder and plastic seeds again. More important is its environmental value, reducing the pollution of harmful gases in the air to the air and to land resources and groundwater.
  • the present invention provides a magnetic glue technology which is used in packaging of paper-plastic aluminum, convenient bowl packaging, various beverage bottles, etc., thereby finally after the packaging container is discarded.
  • the sorting is identified by the magnetic separation equipment to achieve the purpose of recycling.
  • the present invention includes the following technical solutions:
  • a magnetic adhesive comprising 10 to 80 parts by weight of a ferromagnetic substance and 20 to 90 parts by weight of a hot melt adhesive.
  • the magnetic adhesive as described above, preferably, contains 60 to 80 parts by weight of a ferromagnetic substance and 20 to 40 parts by weight of a hot melt adhesive.
  • the ferromagnetic substance is iron powder, and the iron powder has a particle size of not less than 200 mesh.
  • the hot melt adhesive is a hot melt grade EVA or TPR type hot melt adhesive.
  • the present invention provides a method for producing a magnetic adhesive as described above, which comprises: uniformly mixing the ferromagnetic substance and hot melt adhesive in the above ratio, and extruding and granulating at 180 to 220 °C.
  • the present invention provides a magnetically selectable recyclable packaging container comprising: a container outer casing, a container attachment and a magnetic adhesive; the magnetic adhesive is the magnetic adhesive of the present invention; the container attachment is magnetically bonded The glue adheres to the container casing or the seam of the container appendage is bonded with a magnetic adhesive; the amount of the magnetic glue is not less than 1% of the total weight of the packaging container.
  • the magnetically recyclable packaging container as described above is preferably a beverage paper plastic aluminum packaging box, a beverage bottle, an instant noodle packaging box, a paper cup or a paper bowl.
  • the magnetically recyclable packaging container as described above is preferably a straw, a product identification, a meal spoon and/or a fork.
  • the present invention provides a packaging garbage recycling method, which comprises: sorting and recycling a magnetically selectable packaging container as described above using a magnetic sorting device.
  • the magnetic sorting device comprises a magnetic roller which is placed in front of the refuse conveyor terminal; and when the device is in operation, includes the magnetically recyclable packaging container to be recycled It is sent to the upper surface of the magnetic roller by the garbage conveyor, and is adsorbed by the magnetic roller under the action of the magnetic field, thereby realizing garbage sorting and recovery; the magnetic field strength of the magnetic roller is 3500-4500 gauss.
  • the magnetic viscose raw material of the present invention is easy to obtain and low in cost. Among them, the price of iron powder is lower than the price of hot melt adhesive which is widely used at present, therefore, the raw material price of magnetic adhesive is lower than the price of ordinary hot melt adhesive.
  • the present invention utilizes the ferromagnetism of the packaged product to recover a certain type of packaging waste, which is simple in operation, good in selectivity, and high in recycling efficiency.
  • Application tests show that the sorting rate of paper-plastic aluminum packaging using magnetic viscose can reach more than 68%, which is higher than the latest target of 40% prescribed by the National Development and Reform Commission.
  • FIG. 1 is a schematic view showing the structure of a magnetic recyclable paper-based beverage package of Embodiment 3.
  • Example 2 is a schematic view showing the structure of a magnetic recyclable paper instant noodle bowl of Example 4.
  • Example 3 is a schematic view showing the structure of a magnetic recyclable beverage packaging bottle of Example 5.
  • FIG. 4 is a schematic diagram of a garbage sorting process of Embodiment 6.
  • the particle size of 300 mesh iron powder (produced by Shandong Laiwu Powder Material Co., Ltd.) and 60 mesh EVA hot melt grade powder (produced by Jiangyin Ideal Rubber Technology Co., Ltd.) are mixed according to the mass ratio of 7:3, and evenly mixed by powder mixing equipment. Extrusion granulation at 180 ° C to obtain magnetic viscose (2).
  • the magnetic recyclable paper-based beverage package includes a carton 1, a straw 12, and a magnetic adhesive 11.
  • the magnetic adhesive (1) prepared in the magnetic adhesive example 1. Both ends of the straw 12 are adhered to the surface of the carton 1 by a magnetic adhesive 11.
  • the paper-based beverage package has a volume of 250 mL and a total weight of 10 g, and the total amount of the magnetic adhesive (I) is 0.1 g.
  • the magnetic recyclable paper instant noodle bowl includes a bowl body 2, a trademark mark 22, and a magnetic adhesive 21.
  • the magnetic adhesive prepared in Example 2 was a magnetic viscose (2).
  • the trade mark 22 is a strip of paper wrapped around the outer periphery of the bowl 2, and the overlapping ends of the paper are adhered by the magnetic adhesive 21.
  • the total weight of the instant noodle bowl was 13 g, and the total amount of the magnetic viscose (2) was 0.15 g.
  • the magnetic recyclable beverage packaging plastic bottle includes a bottle body 3, a trade mark 32, and a magnetic adhesive 31.
  • the article designation 32 is a strip of paper wrapped around the outer circumference of the bottle body 3, and the overlapping ends of the tape are adhered together by the magnetic adhesive 31.
  • the total weight of the beverage bottle was 22 g, and the total amount of the magnetic viscose (2) was 0.3 g.
  • the preliminary sorted domestic waste is sent to a precision magnetic sorting apparatus having a magnetic roller 4 placed in front of the end of the refuse conveyor belt 5.
  • the waste to be recovered 6 including the magnetically selectable packaging container is sent to the upper surface of the magnetic roller 4 by the garbage conveyor 5, and under the action of the magnetic field, the magnetically recyclable packaging container is adsorbed by the surface of the magnetic roller and falls into the magnetic separation recovery.
  • the garbage container 41 the non-magnetic garbage falls into the sorting remaining garbage container 10, thereby realizing garbage sorting and recycling.
  • the magnetic flux magnetic field strength of the magnetic roller is 4500 gauss
  • the running speed of the conveyor belt is 1 m/s
  • the equipment is treated with garbage of 500 tons to 600 tons per day.
  • the sorting rate of the magnetically selectable packaging container is 68%-72%. If you need to increase the sorting rate, you can perform secondary sorting.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Wrappers (AREA)
  • Processing Of Solid Wastes (AREA)
  • Packages (AREA)

Abstract

A magnetic adhesive, a magnetically separable and recyclable packaging container, and a packaging waste recycling method. The magnetic adhesive contains 10-80 parts by weight of a ferromagnetic substance and 20-90 parts by weight of a hot melt adhesive. The magnetically separable and recyclable packaging container comprises a container shell, a container additional object and the magnetic adhesive, the container additional object being adhered to the container shell by the magnetic adhesive, or the magnetic adhesive being used for bonding at a seam of the container additional object. The magnetically separable and recyclable packaging container can be sorted after being identified by a magnetic separator in a final waste sorting process after being discarded, so as to achieve the goal of recycling and reusing.

Description

一种磁性粘胶、可磁选回收包装容器及包装垃圾回收方法Magnetic viscose, magnetically selectable recycling packaging container and packaging garbage recycling method 技术领域Technical field
本发明涉及一种利于包装回收的包装材料及其制造、回收方法。The invention relates to a packaging material which is convenient for packaging and recycling, and a manufacturing and recycling method thereof.
背景技术Background technique
当今世界提倡环保、低碳、保护自然、资源回收再利用。环境为我们生存和发展提供了必需的资源和条件，是人类生存和发展的基本前提，爱好资源、保护资源、节约资源以及资源回收再利用是保护环境的当务之急。然而，随着社会的不断发展，每年产生的垃圾量也在逐年增加，最大限度地实现垃圾资源重复利用，减少垃圾处置量，改善生存环境质量，是当前世界各国共同关注的迫切问题之一。The world today advocates environmental protection, low carbon, natural conservation, and recycling of resources. The environment provides the necessary resources and conditions for our survival and development. It is the basic premise for human survival and development. It is an urgent task to protect the environment to hobby resources, protect resources, conserve resources and recycle resources. However, with the continuous development of society, the amount of garbage generated every year is also increasing year by year. Maximizing the reuse of garbage resources, reducing the amount of garbage disposal, and improving the quality of the living environment are among the urgent issues of common concern in the world.
我国当前推行生产者责任延伸制度。该制度是指将生产者对其产品承担的资源环境责任从生产环节延伸到产品设计、流通消费、回收利用、废物处置等全生命周期的制度。其中提到重点任务是率先确定对电器电子、汽车、铅酸蓄电池和饮料纸基复合包装等4类产品实施生产者延伸制度。积极开展回收再利用，保护资源、保护环境。我国是饮料纸基复合包装的消费大国，每年的用量为800亿-1000亿包。饮料纸基复合包装通常是纸塑铝复合包装，是一种由纸、铝箔和聚乙烯塑料复合而成的材料，其中长纤维优质纸浆、铝和塑料的含量分别约为75％纸板、5％铝箔和20％聚乙烯。该包装共有6层，具有很高回收再利用价值。纸塑铝复合包装不能自然降解，如果不做处理，一百年也得不到降解。因此这是一个不环保的包装材料。China is currently implementing an extension system for producer responsibility. The system refers to the system that extends the resource and environmental responsibility of producers for their products from the production process to the whole life cycle of product design, circulation consumption, recycling and waste disposal. Among them, the key task is to take the lead in determining the implementation of the producer extension system for four types of products, such as electrical and electronic, automotive, lead-acid batteries and beverage-based composite packaging. Actively carry out recycling and reuse to protect resources and protect the environment. China is a big consumer of beverage-based composite packaging, with an annual consumption of 80 billion to 100 billion bales. Beverage paper-based composite packaging is usually a paper-plastic aluminum composite packaging. It is a composite material of paper, aluminum foil and polyethylene plastic. The content of long-fiber high-quality pulp, aluminum and plastic is about 75% cardboard and 5% respectively. Aluminum foil and 20% polyethylene. The package has 6 layers and is highly recycled. Paper-plastic aluminum composite packaging can not be naturally degraded, and if it is not treated, it will not be degraded in a hundred years. So this is a non-environmental packaging material.
目前，国内各大中小城市以及农村乡镇为了实现资源再利用的国家环保垃圾减量目标都建立了垃圾分选中心。利用分选设备中的风选、水选和磁选设备将垃圾中不同的有利用价值的材料分拣出来。但是，对于纸塑铝复合包装回收问题一直没有得到很好解决，多年以来各个方面做了大量工作，校园教育、社区宣传、拾荒人努力等等。也不过仅仅徘徊在10％-15％的回收率。对于大量75％-85％废弃包装都转移到生活垃圾中。回收这些包装具有很大的经济价值，废弃包装可以加工纸浆、铝粉和塑料粒籽再次良好利用。更重要的是它的环保价值，减少焚烧过程有害气体对空气中以及对土地资源和地下水的污染。At present, garbage sorting centers have been established in major domestic small and medium-sized cities and rural towns and towns in order to achieve the goal of recycling national environmental waste. The use of different valuable materials in the waste is sorted out by means of air separation, water selection and magnetic separation equipment in the sorting equipment. However, the problem of recycling paper-plastic aluminum composite packaging has not been well solved. Over the years, a lot of work has been done in various aspects, such as campus education, community publicity, and scavenger efforts. It is also only a 10%-15% recovery rate. For a large number of 75%-85% of discarded packaging are transferred to domestic garbage. The recycling of these packages is of great economic value, and the waste packaging can be used to process pulp, aluminum powder and plastic seeds again. More important is its environmental value, reducing the pollution of harmful gases in the air to the air and to land resources and groundwater.
发明内容Summary of the invention
为满足提高纸基复合包装回收效率的需求，本发明提供一种磁胶技术，在纸塑铝包装、方便碗面包装、各种饮料瓶等包装上使用，从而，在包装容器废弃后的最终垃圾分拣过程中，通过磁选设备识别分拣出来，达到回收再利用的目的。In order to meet the demand for improving the recycling efficiency of the paper-based composite packaging, the present invention provides a magnetic glue technology which is used in packaging of paper-plastic aluminum, convenient bowl packaging, various beverage bottles, etc., thereby finally after the packaging container is discarded. In the garbage sorting process, the sorting is identified by the magnetic separation equipment to achieve the purpose of recycling.
为实现上述目的，本发明包括如下技术方案：To achieve the above object, the present invention includes the following technical solutions:
一种磁性粘胶，其中含有10-80重量份的铁磁性物质和20-90重量份的热熔胶。A magnetic adhesive comprising 10 to 80 parts by weight of a ferromagnetic substance and 20 to 90 parts by weight of a hot melt adhesive.
如上所述的磁性粘胶，优选地，所述磁性粘胶中含有60-80重量份的铁磁性物质和20-40重量份的热熔胶。As the magnetic adhesive as described above, preferably, the magnetic adhesive contains 60 to 80 parts by weight of a ferromagnetic substance and 20 to 40 parts by weight of a hot melt adhesive.
如上所述的磁性粘胶，优选地，所述铁磁性物质为铁粉，该铁粉的粒度不小于200目。As the magnetic viscose as described above, preferably, the ferromagnetic substance is iron powder, and the iron powder has a particle size of not less than 200 mesh.
如上所述的磁性粘胶，优选地，所述热熔胶为热熔级EVA或TPR类热熔胶。As the magnetic adhesive as described above, preferably, the hot melt adhesive is a hot melt grade EVA or TPR type hot melt adhesive.
另一方面，本发明提供如上所述的磁性粘胶的制备方法，该方法包括：将所述铁磁性物质和热熔胶按照所述比例混合均匀，于180～220℃挤压造粒。In another aspect, the present invention provides a method for producing a magnetic adhesive as described above, which comprises: uniformly mixing the ferromagnetic substance and hot melt adhesive in the above ratio, and extruding and granulating at 180 to 220 °C.
又一方面，本发明提供一种可磁选回收包装容器，其包括：容器外壳、容器附加物和磁性粘胶；该磁性粘胶为本发明所述的磁性粘胶；容器附加物通过磁性粘胶粘附在容器外壳上，或者将容器附加物的接缝处用磁性粘胶粘合；所述磁性粘胶的用量不低于该包装容器总重量的1％。In still another aspect, the present invention provides a magnetically selectable recyclable packaging container comprising: a container outer casing, a container attachment and a magnetic adhesive; the magnetic adhesive is the magnetic adhesive of the present invention; the container attachment is magnetically bonded The glue adheres to the container casing or the seam of the container appendage is bonded with a magnetic adhesive; the amount of the magnetic glue is not less than 1% of the total weight of the packaging container.
如上所述的可磁选回收包装容器，优选地，所述容器为饮料纸塑铝包装盒、饮料瓶、方便面包装盒、纸杯或纸碗。The magnetically recyclable packaging container as described above is preferably a beverage paper plastic aluminum packaging box, a beverage bottle, an instant noodle packaging box, a paper cup or a paper bowl.
如上所述的可磁选回收包装容器，优选地，所述容器附加物为吸管、商品标识、餐勺和/或餐叉。The magnetically recyclable packaging container as described above is preferably a straw, a product identification, a meal spoon and/or a fork.
再一方面，本发明提供一种包装垃圾回收方法，该方法包括：使用磁性分选设备将如上所述的可磁选回收包装容器进行分选回收。In still another aspect, the present invention provides a packaging garbage recycling method, which comprises: sorting and recycling a magnetically selectable packaging container as described above using a magnetic sorting device.
如上所述的包装垃圾回收方法，优选地，所述磁性分选设备包括一磁力辊，该磁力辊置于垃圾传送带终端前方；设备运行时，包括所述可磁选回收包装容器的待回收垃圾被垃圾传送带送至磁力辊上方表面，在磁场作用下被磁力辊表面吸附，从而实现垃圾分选回收；该磁力辊的磁场强度为3500～4500高斯。In the packaging garbage recycling method as described above, preferably, the magnetic sorting device comprises a magnetic roller which is placed in front of the refuse conveyor terminal; and when the device is in operation, includes the magnetically recyclable packaging container to be recycled It is sent to the upper surface of the magnetic roller by the garbage conveyor, and is adsorbed by the magnetic roller under the action of the magnetic field, thereby realizing garbage sorting and recovery; the magnetic field strength of the magnetic roller is 3500-4500 gauss.
本发明的有益效果体现在以下几个方面：The beneficial effects of the present invention are embodied in the following aspects:
(1)本发明的磁性粘胶原料易得、成本低廉。其中，铁粉的价格低于目前广泛使用的热熔胶价格，因此，磁性粘胶的原料价格低于普通热熔胶价格。(1) The magnetic viscose raw material of the present invention is easy to obtain and low in cost. Among them, the price of iron powder is lower than the price of hot melt adhesive which is widely used at present, therefore, the raw material price of magnetic adhesive is lower than the price of ordinary hot melt adhesive.
(2)磁性粘胶的制备方法工艺简单，生产设备投入低、效率高，利于市场推广。(2) The preparation method of magnetic viscose is simple in process, low in production equipment and high in efficiency, which is conducive to market promotion.
(3)本发明利用包装产品具备的铁磁性来回收某一特定类别的包装垃圾，操作简单、选择性好、回收效率高。应用试验表明，对于使用磁性粘胶的纸塑铝包装分选率可达到68％以上，高于国家发改委规定的40％的最新目标。(3) The present invention utilizes the ferromagnetism of the packaged product to recover a certain type of packaging waste, which is simple in operation, good in selectivity, and high in recycling efficiency. Application tests show that the sorting rate of paper-plastic aluminum packaging using magnetic viscose can reach more than 68%, which is higher than the latest target of 40% prescribed by the National Development and Reform Commission.
附图说明DRAWINGS
图1为实施例3的磁性可回收纸基饮料包装盒结构示意图。1 is a schematic view showing the structure of a magnetic recyclable paper-based beverage package of Embodiment 3.
图2为实施例4的磁性可回收纸质方便面碗结构示意图。2 is a schematic view showing the structure of a magnetic recyclable paper instant noodle bowl of Example 4.
图3为实施例5的磁性可回收饮料包装瓶结构示意图。3 is a schematic view showing the structure of a magnetic recyclable beverage packaging bottle of Example 5.
图4为实施例6的垃圾分选流程示意图。4 is a schematic diagram of a garbage sorting process of Embodiment 6.
具体实施方式detailed description
下面结合具体实施例，进一步阐述本发明。应理解，这些实施例仅用于说明本发明而不用于限制本发明的范围。The invention is further illustrated below in conjunction with specific embodiments. It is to be understood that the examples are not intended to limit the scope of the invention.
实施例1磁性粘胶(一)Example 1 Magnetic Adhesive (1)
将粒度为200-400目铁粉(山东莱芜粉末材料有限公司生产)和40目EVA热熔级粉(江阴市理想橡胶科技有限公司生产)按照6：4的质量比混合，经过粉末混合设备搅拌混合均匀，在180℃挤压造粒，获得磁性粘胶(一)。Mixing 200-400 mesh iron powder (produced by Shandong Laiwu Powder Material Co., Ltd.) and 40 mesh EVA hot-melt grade powder (produced by Jiangyin Ideal Rubber Technology Co., Ltd.) in a mass ratio of 6:4, and stirring through a powder mixing device. The mixture was uniformly mixed, and granulated by extrusion at 180 ° C to obtain a magnetic viscose (I).
实施例2磁性粘胶(二)Example 2 Magnetic Adhesive (2)
将粒度为300目铁粉(山东莱芜粉末材料有限公司生产)和60目EVA热熔级粉(江阴市理想橡胶科技有限公司生产)按照7：3的质量比混合，经过粉末混合设备搅拌混合均匀，在180℃挤压造粒，获得磁性粘胶(二)。The particle size of 300 mesh iron powder (produced by Shandong Laiwu Powder Material Co., Ltd.) and 60 mesh EVA hot melt grade powder (produced by Jiangyin Ideal Rubber Technology Co., Ltd.) are mixed according to the mass ratio of 7:3, and evenly mixed by powder mixing equipment. Extrusion granulation at 180 ° C to obtain magnetic viscose (2).
实施例3磁性可回收纸基饮料包装盒Example 3 Magnetic Recyclable Paper-Based Beverage Packaging Box
如图1所示，磁性可回收纸基饮料包装盒包括纸盒1、吸管12和磁性粘胶11。该磁性粘胶实施例1制备的磁性粘胶(一)。吸管12的两端通过磁性粘胶11粘附在纸盒1表面。该纸基饮料包装盒的容积为250mL，总重量为10g，磁性粘胶(一)的总量为0.1g。As shown in FIG. 1, the magnetic recyclable paper-based beverage package includes a carton 1, a straw 12, and a magnetic adhesive 11. The magnetic adhesive (1) prepared in the magnetic adhesive example 1. Both ends of the straw 12 are adhered to the surface of the carton 1 by a magnetic adhesive 11. The paper-based beverage package has a volume of 250 mL and a total weight of 10 g, and the total amount of the magnetic adhesive (I) is 0.1 g.
实施例4磁性可回收纸质方便面碗Example 4 Magnetic Recyclable Paper Instant Noodle Bowl
如图2所示，磁性可回收纸质方便面碗包括碗体2、商品商标标识22和磁性粘胶21。该磁性粘胶实施例2制备的磁性粘胶(二)。商品商标标识22为条形纸带环绕在碗体2的外周，纸带的两端搭接处通过磁性粘胶21粘附在一起。该方便面碗的总重量为13g，磁性粘胶(二)的总量为0.15g。As shown in FIG. 2, the magnetic recyclable paper instant noodle bowl includes a bowl body 2, a trademark mark 22, and a magnetic adhesive 21. The magnetic adhesive prepared in Example 2 was a magnetic viscose (2). The trade mark 22 is a strip of paper wrapped around the outer periphery of the bowl 2, and the overlapping ends of the paper are adhered by the magnetic adhesive 21. The total weight of the instant noodle bowl was 13 g, and the total amount of the magnetic viscose (2) was 0.15 g.
实施例5磁性可回收饮料包装瓶Example 5 Magnetic Recyclable Beverage Bottle
如图3所示，磁性可回收饮料包装塑料瓶包括瓶身3、商品商标标识32和磁性粘胶31。该磁性粘胶实施例1制备的磁性粘胶(一)。商品标识32为条形纸带环绕在瓶身3的外周，纸带的两端搭接处通过磁性粘胶31粘附在一起。该饮料包装瓶的总重量为22g，磁性粘胶(二)的总量为0.3g。As shown in FIG. 3, the magnetic recyclable beverage packaging plastic bottle includes a bottle body 3, a trade mark 32, and a magnetic adhesive 31. The magnetic adhesive (1) prepared in the magnetic adhesive example 1. The article designation 32 is a strip of paper wrapped around the outer circumference of the bottle body 3, and the overlapping ends of the tape are adhered together by the magnetic adhesive 31. The total weight of the beverage bottle was 22 g, and the total amount of the magnetic viscose (2) was 0.3 g.
实施例6可磁选回收包装容器垃圾分选Example 6 Magnetic separation and packaging container garbage sorting
(一)初步分选(1) Preliminary sorting
在北京某垃圾分拣中心，采用常规城市生活垃圾分选设备(山东德州群峰机械有限公司制造)。首先将包括可磁选回收包装容器的待回收生活垃圾进行破袋、风选和磁选。如图4所示，箭头所指为垃圾传送方向，待回收生活垃圾依次通过破袋机7、风选机8和磁选机9。风选过程分离出轻质的纸质和塑料袋垃圾，落入轻质材料和塑料袋回收容器81；在磁选机9中进行常规磁选过程分离出铁含量较高的垃圾，落入铁质材料回收容器91中。In a garbage sorting center in Beijing, conventional urban domestic waste sorting equipment (manufactured by Shandong Dezhou Qunfeng Machinery Co., Ltd.) was used. First, the domestic garbage to be recycled including the magnetically selectable recycled packaging container is subjected to bag breaking, air selection and magnetic separation. As shown in FIG. 4, the arrow indicates the direction of garbage transportation, and the domestic garbage to be recycled passes through the bag breaking machine 7, the air sorting machine 8, and the magnetic sorter 9. The wind-selecting process separates the light paper and plastic bag waste into the lightweight material and the plastic bag recycling container 81; in the magnetic separator 9, the conventional magnetic separation process separates the garbage with high iron content and falls into the iron. The material is recovered in the container 91.
(二)含磁性溶胶的可磁选回收垃圾的精确分选(2) Accurate sorting of magnetically selectable waste containing magnetic sol
将初步分选后的生活垃圾送入精确磁性分选设备，该精确磁性分选设备具有一磁力辊4，该磁力辊置于垃圾传送带5终端前方。设备运行时，包括可磁选回收包装容器的待回收垃圾6被垃圾传送带5送至磁力辊4上方表面，在磁场作用下，可磁选回收包装容器被磁力辊表面吸附，落入磁选回收垃圾容器41中，非磁性垃圾落入分选剩余垃圾容器10中，从而实现垃圾分选回收。该磁力辊的磁通量磁场强度为4500高斯，传送带的运行速度为1m/s，设备日处理垃圾500吨-600吨。可磁选回收包装容器的分选率为68％-72％。如果需要提高分拣率，可以进行二次分拣。The preliminary sorted domestic waste is sent to a precision magnetic sorting apparatus having a magnetic roller 4 placed in front of the end of the refuse conveyor belt 5. When the equipment is in operation, the waste to be recovered 6 including the magnetically selectable packaging container is sent to the upper surface of the magnetic roller 4 by the garbage conveyor 5, and under the action of the magnetic field, the magnetically recyclable packaging container is adsorbed by the surface of the magnetic roller and falls into the magnetic separation recovery. In the garbage container 41, the non-magnetic garbage falls into the sorting remaining garbage container 10, thereby realizing garbage sorting and recycling. The magnetic flux magnetic field strength of the magnetic roller is 4500 gauss, the running speed of the conveyor belt is 1 m/s, and the equipment is treated with garbage of 500 tons to 600 tons per day. The sorting rate of the magnetically selectable packaging container is 68%-72%. If you need to increase the sorting rate, you can perform secondary sorting.

Claims (10)

  1. 一种磁性粘胶，其特征在于，其中含有10-80重量份的铁磁性物质和20-90重量份的热熔胶。A magnetic adhesive comprising 10 to 80 parts by weight of a ferromagnetic substance and 20 to 90 parts by weight of a hot melt adhesive.
  2. 如权利要求1所述的磁性粘胶，其特征在于，所述磁性粘胶中含有60-80重量份的铁磁性物质和20-40重量份的热熔胶。The magnetic adhesive according to claim 1, wherein said magnetic adhesive contains 60 to 80 parts by weight of a ferromagnetic substance and 20 to 40 parts by weight of a hot melt adhesive.
  3. 如权利要求1或2所述的磁性粘胶，其特征在于，所述铁磁性物质为铁粉，该铁粉的粒度不小于200目。The magnetic viscose according to claim 1 or 2, wherein the ferromagnetic substance is iron powder, and the iron powder has a particle size of not less than 200 mesh.
  4. 如权利要求3所述的磁性粘胶，其特征在于，所述热熔胶为热熔级EVA或TPR类热熔胶。The magnetic adhesive according to claim 3, wherein the hot melt adhesive is a hot melt grade EVA or TPR type hot melt adhesive.
  5. 如权利要求1-4中任意项所述的磁性粘胶的制备方法，其特征在于，该方法包括：将所述铁磁性物质和热熔胶按照所述比例混合均匀，于180～220℃挤压造粒。The method for preparing a magnetic adhesive according to any one of claims 1 to 4, wherein the method comprises: uniformly mixing the ferromagnetic substance and the hot melt adhesive according to the ratio, and extruding at 180 to 220 ° C. Pressure granulation.
  6. 一种可磁选回收包装容器，其特征在于，其包括：容器外壳、容器附加物和磁性粘胶；该磁性粘胶为权利要求1-4中任意项所述的磁性粘胶；容器附加物通过磁性粘胶粘附在容器外壳上，或者将容器附加物的接缝处用磁性粘胶粘合；所述磁性粘胶的用量不低于该包装容器总重量的1％。A magnetically selectable recyclable packaging container, comprising: a container casing, a container appendage and a magnetic adhesive; the magnetic viscose is the magnetic viscose according to any one of claims 1 to 4; the container appendage The magnetic adhesive is adhered to the container casing, or the seam of the container attachment is bonded with a magnetic adhesive; the magnetic adhesive is used in an amount of not less than 1% by weight based on the total weight of the packaging container.
  7. 如权利要求6所述的可磁选回收包装容器，其特征在于，所述容器为饮料纸塑铝包装盒、饮料瓶、方便面包装盒、纸杯或纸碗。The magnetically selectable recyclable packaging container according to claim 6, wherein the container is a beverage paper-plastic aluminum packaging box, a beverage bottle, an instant noodle packaging box, a paper cup or a paper bowl.
  8. 如权利要求6或7所述的可磁选回收包装容器，其特征在于，所述容器附加物为吸管、商品标识、餐勺和/或餐叉。A magnetically selectable packaging container according to claim 6 or claim 7, wherein the container attachment is a straw, a product label, a meal spoon and/or a fork.
  9. 一种包装垃圾回收方法，其特征在于，该方法包括：使用磁性分选设备将权利要求6-8中任一项所述的可磁选回收包装容器进行分选回收。A packaging waste recycling method, comprising: sorting and recycling the magnetically selectable packaging container according to any one of claims 6-8 using a magnetic sorting device.
  10. 如权利要求9所述的包装垃圾回收方法，其特征在于，所述磁性分选设备包括一磁力辊，该磁力辊置于垃圾传送带终端前方；设备运行时，包括所述可磁选回收包装容器的待回收垃圾被垃圾传送带送至磁力辊上方表面，在磁场作用下被磁力辊表面吸附，从而实现垃圾分选回收；该磁力辊的磁场强度为3500～4500高斯。A packaging waste recycling method according to claim 9, wherein said magnetic sorting device comprises a magnetic roller which is placed in front of the refuse conveyor terminal; and when said device is in operation, said magnetically selectable recycled packaging container The waste to be recycled is sent to the upper surface of the magnetic roller by the garbage conveyor, and is adsorbed by the magnetic roller under the action of the magnetic field, thereby realizing garbage sorting recovery; the magnetic field strength of the magnetic roller is 3500-4500 gauss.
PCT/CN2019/086219 2018-03-16 2019-05-09 Magnetic adhesive, magnetically separable and recyclable packaging container, and packaging waste recycling method WO2019174651A1 (en)

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