CN202624939U - Packaging materials and packages made of such packaging materials - Google Patents

Abstract

The utility model provides a packaging material and a packaging piece made of the packaging material, wherein the packaging material comprises a protective layer, a printing and dyeing layer, a substrate layer and a barrier layer, wherein the protective layer covers the printing and dyeing layer, the printing and dyeing layer is coated on the substrate layer, and the barrier layer is coated on the substrate layer. The protective layer is a degradable plastic film, which can improve the recycling rate of the packaging material. The packaging piece made of the packaging material has high recyclability after use and has low pollution to the environment.

Description

Packaging materials and packages made of such packaging materials

technical field

The utility model relates to the packaging field, in particular to a packaging material and a package made of the packaging material.

Background technique

The main purpose of general article packaging is to protect the product and look beautiful. Packaging materials currently on the market usually use paper as a base material, and then cover a layer of plastic film on the surface of the base material to be used for waterproofing, anti-fouling, or to increase the brightness and vividness of the packaging material. However, plastic films are often difficult to degrade. If a large amount of plastic film is used on packaging materials, it will be difficult to degrade after the packaging materials are discarded. If they are not recycled in time, they will form permanent garbage. However, since the paper layer of the packaging material is difficult to separate from the plastic film, it is also difficult to recycle the paper in the packaging material. If these discarded packaging materials are incinerated, a large amount of harmful gases will be produced after the plastic is burned, such as aromatic hydrocarbons that are likely to cause cancer.

Utility model content

In view of the above, it is necessary to provide a packaging material that is convenient for recycling and environmentally friendly, and a package made of the packaging material.

A packaging material, comprising a protective layer, a printing and dyeing layer, a substrate layer and a barrier layer, the protective layer is covered on the printing and dyeing layer, the printing and dyeing layer is coated on the substrate layer, and the barrier layer is coated on the on the substrate layer.

Preferably, said substrate layer comprises at least one paper layer.

Preferably, an adhesive layer is also packaged, and the adhesive layer bonds the printing layer and the protective layer.

Preferably, the protective layer is a transparent film with a thickness of 8-15 microns.

Preferably, the thickness of the printing and dyeing layer is 0.05-0.1 micron.

Preferably, the substrate layer includes 2-5 paper layers, and the paper layers are bonded into a whole by an adhesive.

Preferably, the barrier layer has a thickness of 0.05-0.3 microns.

A package made of the above-mentioned packaging material.

A packaging material includes a protective layer, a substrate layer and a barrier layer, and the substrate layer is arranged between the protective layer and the barrier layer.

Preferably, said substrate layer comprises at least one paper layer.

Compared with the prior art, the packaging material described in the utility model and the package made by using the packaging material, the packaging material including the protective layer, the printing and dyeing layer, the substrate layer and the barrier layer are all made of environmentally friendly materials. Under external conditions, the packaging material, and the packaging box or packaging bag made of the packaging material can be partially degraded by microorganisms, and no other toxic substances are discharged into the external environment, and the undegraded part can continue to be recycled.

Description of drawings

Fig. 1 is a schematic structural view of the packaging material of the present invention.

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

Please refer to FIG. 1 , a packaging material 100 provided by a preferred embodiment of the present invention includes a protective layer 10 , a printing and dyeing layer 20 , a substrate layer 30 , a barrier layer 40 and an adhesive layer (not shown). The protective layer 10 is adhered to the printing and dyeing layer 20 through the bonding effect of the adhesive layer. The printing and dyeing layer 20 can be coated on the surface of the substrate layer 30 using a flexo printing process, and the barrier layer 40 is uniform coated on the other surface of the substrate layer 30 .

The protective layer 10 is at least one of biodegradable starch-modified polyethylene film, starch-modified polystyrene film, starch-modified polypropylene film, starch-modified polyester film or starch-modified polyvinyl chloride film kind. In a preferred embodiment of the utility model, the protective layer 10 is a starch-modified polyvinyl chloride film. The starch-modified polyvinyl chloride film is a colorless, transparent and glossy film, and the thickness of the starch-modified polyvinyl chloride film is 8-15 microns. The starch-modified polyvinyl chloride film is directly covered on the printing and dyeing layer 20 through the bonding effect of the adhesive. Since the vinyl chloride film modified by starch is a biodegradable film, it can be degraded by soil burial, fungal growth or carbon dioxide release, etc., so that the packaging material 100 of the present invention and the packaging material 100 made of it Possibilities for recycling of packages are enhanced.

The printing and dyeing layer 20 may be alcohol-soluble ink, which is covered and coated on a surface of the substrate layer 30 through a flexo printing process. The flow of the flexo printing process is that the materials to be printed are accurately and stably sent to the printing machine for printing, and after the printing is completed, they are dried by a drying device, and then glazing is performed to make the pattern on the printing and dyeing layer 20 more vivid. Shiny. The alcohol-soluble ink used in the printing and dyeing layer 20 has low VOC emission and little environmental pollution. The thickness of the printing and dyeing layer is 0.05-0.1 micron.

The substrate layer 30 can be seaweed paper. The seaweed paper is formed by crushing seaweed as one of the raw materials for papermaking and filling it in the paper. The tension of the seaweed paper is much higher than that of ordinary paper, it does not contain chloride, its pH is neutral, and it has less pollution to the environment. The substrate layer 30 of the preferred embodiment of the present invention is two layers of seaweed paper.

The barrier layer 40 is sprayed with aluminum on the other surface of the substrate layer 30 by a vacuum aluminum coating machine to form an aluminum coating layer on the other surface of the substrate layer 30 . The barrier layer 40 has a thickness of 0.05-0.3 microns. The barrier layer 40 of the preferred embodiment of the utility model is a kind of vacuum aluminized paper, which has excellent recyclability and environmental protection performance.

The adhesive layer is at least one of ethylene-acrylate copolymer or ethylene-vinyl acetate copolymer. In a preferred embodiment of the utility model, the adhesive is ethylene-acrylate copolymer. The adhesive layer is disposed between the protection layer 10 and the printing and dyeing layer 20 . The coating process of the adhesive layer is to melt the ethylene-acrylate copolymer, and then uniformly coat the melted ethylene-acrylate copolymer on the surface of the protective layer 10 and the printing and dyeing layer 20, After the molten ethylene-acrylate copolymer is cooled, the ethylene-acrylate copolymer becomes solid again, and connects the printing layer 20 and the protective layer 10 as a whole. The ethylene-acrylic acid ester copolymer or ethylene-vinyl acetate copolymer does not need drying equipment, can be quickly cured in only tens of milliseconds at normal temperature, and has high bonding strength and less pollution.

The above-mentioned packaging material 100 can be made into various packages (not shown), such as packaging boxes or bags for packaging tea, cigarettes and other items as required. The package has waterproof and moisture-proof properties, is not easily deformed, is convenient for packaging and transportation, and can be recycled and reused after use. In addition, after the materials used in making the package are discarded, they can be completely degraded by microorganisms under a certain environment, which has good environmental protection performance.

In addition, the protective layer 10 can directly cover the substrate layer 30 without the printing layer 20 .

In addition, the substrate layer 30 may also be composed of three or five layers of paper, and the substrate layers 30 are bonded into a whole through the adhesive;

In addition, the substrate layer 30 can also be white board paper, tea board paper, gray board paper or coated paper;

In addition, the barrier layer 40 can also be a metallocene polyethylene film;

In addition, the adhesive layer can also be polyurethane adhesive.

The packaging material 100 of the present invention and the protective layer 10 included in the packaging box or packaging bag using the packaging material 100 are made of biodegradable materials. After the used packaging material 100 and the packaging box or packaging bag using the packaging material 100 are collected, they are placed in a specific environment to degrade the protective layer through biology. After the degradation is completed, the substrate layer 30 can be processed and reused. The barrier layer 40 of the utility model is vacuum aluminized on paper, and the vacuum aluminized paper formed is also one of very environment-friendly packaging materials. The printing and dyeing layer of the packaging material is printed with alcohol-soluble ink that has little environmental pollution. Therefore, the packaging material 100 of the present invention and the packaging box or packaging bag using the packaging material 100 have high recyclability after being used, and have little pollution to the environment.

The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural transformations made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields, are all The same reasoning is included in the patent protection scope of the present invention.

Claims (10)

1. packing is characterized in that: comprise protective cover, printing and dyeing layer, substrate layer and barrier layer, said protective cover is covered on the said printing and dyeing layer, and said printing and dyeing layer are coated on the said substrate layer, and said barrier coated is on said substrate layer.

2. packing according to claim 1 is characterized in that: said substrate layer comprises at least one ply of paper.

3. packing according to claim 1 is characterized in that: also pack the gluing layer, said gluing layer coheres said printing and dyeing layer and protective cover.

4. packing according to claim 2 is characterized in that: said protective cover is a transparent membrane, and the thickness of this film is the 8-15 micron.

5. packing according to claim 2 is characterized in that: the thickness of said printing and dyeing layer is the 0.05-0.1 micron.

6. packing according to claim 2 is characterized in that: said substrate layer comprises the 2-5 ply of paper, and ply of paper coheres in aggregates through adhesive.

7. packing according to claim 2 is characterized in that: the thickness of said barrier layer is the 0.05-0.3 micron.

8. package, it is characterized in that: said package comprises any one described packing of claim 1-7.

9. packing, it is characterized in that: comprise protective cover, substrate layer and barrier layer, said substrate layer is arranged between said protective cover and the barrier layer.

10. packing according to claim 9 is characterized in that: said substrate layer comprises at least one ply of paper.

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