KR100607843B1 - Closed-type packaging casing and method for preparation thereof - Google Patents

Abstract

The present invention relates to an airtight packaging container for packaging household goods such as batteries, toothbrushes, and disposable razors, and more particularly, to an airtight packaging container that can easily separate the packaging film and the base plate and is easy to be separated and collected. will be. The sealed packaging container of the present invention is a sealed packaging container in which a transparent synthetic resin packaging film is adhered to a large plate, wherein the printed layer is formed on both sides of an opaque synthetic resin base plate having the printing layer on both sides, and the printing layer is protected on the surface of the printed layer. The film is bonded, and is composed of an airtight packaging container, characterized in that it has a release layer on at least one side of the transparent synthetic resin protective layer for protecting the printed layer. The present invention comprises the steps of: i) forming a packaging film containing the article to be packaged; ii) forming a printed layer on the inner and outer surfaces of the sheet, and printing a desired pattern or letter; and iii) printing layer surface of the sheet. Applying an adhesive to the adhesive layer to form an adhesive layer, iv) adhering the printing layer protective film to the surface of the printing layer using the adhesive layer as a medium, v) forming a release layer on the surface of the printing layer protective film, and vi The present invention also relates to a method for manufacturing an airtight packaging container, comprising a step of adhering a packaging film to a release layer surface. According to the present invention, there is an advantage in that the peeling of the packaging film is easy and the separate collection is easy.

Description

Closed-type packaging casing and method for preparation thereof

1 is a perspective view of the present invention,

2 is a cross-sectional view of an airtight packaging container according to the present invention;

3 is a process diagram showing the processing steps of the present invention.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealed packaging container for packaging household goods such as batteries, toothbrushes and disposable razors, and more particularly to a sealed packaging container that can easily separate the packaging film and the base plate and is easy to separate and collect.

Conventional packaging containers of this type are made by placing a transparent packaging film, such as a resin film or PET film, vacuum-molded in the form of an article to be packaged on a hot plate, and then placing a product to be packaged therein. It was formed by placing a substrate and a transparent film to be bonded by heating the adhesive site. The above-mentioned large plate was made of paper, and both sides were described with contents necessary for the use of the product.

Such a package has the advantage that the packaging method is simple and has the function of keeping the external image of the product as it is, so that consumers can easily select the contents while viewing the contents.

However, the aforementioned conventional packaging container is made of paper and the packaging film is adhered to the surface of the substrate with a strong adhesive so that when the transparent packaging film is removed to take out the contents, the paper of the substrate is torn apart as a layer of film. It was not easy to separate the transparent film to take out the contents.

In particular, recently, materials that can be recycled, such as synthetic resin and paper, have been generally collected and separated. The above-described conventional packaging body has different materials from the synthetic resin and paper made of paper, which are separated from each other. It was uncomfortable.

Therefore, since the transparent film and the base are composed of synthetic resin and are separated together with the synthetic resin, there is a demand for a package which can easily separate and separate the substrate and the transparent film, thereby easily separating the transparent film from the base.

SUMMARY OF THE INVENTION An object of the present invention is to improve the problems of the above-mentioned conventional packaging body and to easily separate the transparent packaging film and the base plate while separating the transparent packaging film and the base plate as synthetic resin waste, thereby providing a closed packaging container that is easily separated and collected. It is.

An object of the present invention described above is a sealed packaging container made by adhering a transparent synthetic resin packaging film to a large plate, wherein the large plate is formed on both sides of the opaque plate to form a printed layer describing the product description or use thereof and to protect the surface thereof. A coating layer is formed and is achieved by an airtight packaging container characterized by having a release layer adhered to the packaging film on the surface in contact with the transparent packaging film.

According to the present invention, in a sealed packaging container in which a transparent synthetic resin packaging film is adhered to a large plate, a printing layer is provided on both sides of an opaque plate to form a description of the product and a use thereof, and a protective film layer is formed on the surface thereof. And a peeling layer adhered to the packaging film on the surface in contact with the transparent film.

The base plate constituting the large plate is composed of an opaque synthetic resin plate. Hard synthetic resin is used as the synthetic resin plate used as the base plate, but may be formed of a flexible synthetic resin if necessary. The synthetic resin constituting the base plate is preferably a thermoplastic synthetic resin, but may be formed of a thermosetting resin. However, the plate may be composed of a transparent synthetic resin plate, in which case the surface of the transparent plate is opaque or the opaque printing ink is coated on the front surface so that the printed layer printed on the front and back sides of the plate is not visible from the opposite side. To make it opaque.

The base plate has a printed layer on at least one surface printed with instructions on how to use the product, how to use it, and the manufacturer. Such a printed layer may be worn or damaged during transportation or display, thereby adhering a transparent printed layer protective film to the surface of the printed layer so that the printed layer is protected. The above-mentioned printed layer protective film is bonded using a polyurethane-based two-component adhesive. The polyurethane-based two-component adhesive described above mixes 85 to 90% by weight of a polyurethane-based adhesive with 10 to 15% by weight of an isocyanate-based curing agent which is a curing agent, and uses a dry lamination or an extrusion lamination method on the surface of the printing layer on the surface of the base plate. Apply. As the above-described printed layer protective film, a transparent film such as a polyester film of a transparent material or an OPI film or a nylon film is used. The above-described printed layer protective film serves to protect the printed layer and at the same time complement the strength of the plate.

At least one surface of the above-mentioned transparent printing layer protective film is applied by applying a hot melt adhesive to put a product, and when bonding the transparent synthetic resin packaging film by heat-bonding the adhesive site to the adhesive film and the base plate by the hot melt adhesive on the surface of the base plate.

In the present invention, the peeling layer constituting the base may be composed of a hot melt adhesive layer or may be composed of an easy peel film.

The hot melt adhesive may be a synthetic resin adhesive mixture having a softening point of 90 to 120 ° C., for example, 30 to 30 parts by weight of ethylene vinyl acetate resin (VA content of 10 to 42%), an aromatic C to 9 petroleum resin or an aliphatic adhesive agent. C-5 type petroleum resin. In particular, a synthetic resin adhesive composition composed of 5 to 30 parts by weight of hydrogenated hydrocarbon resin and paraffin wax is used.

As an easy peel film, it is a hot melt adhesive substitute film produced by Japan, Hwajeon Chemical Co., Ltd. and Tosero Co., Ltd., and is commercially available under the trade names of XB10F and CMP008 for polypropylene resins and dermatitis. Commercially available under the trade names Y-02FT and Y-03 for polyethylene resins, and commercially available under the names JET-31FT and JetH-42 for PET films and PS films.

The printing layer protective film described above should not be deformed even at a temperature of 100 to 200 ° C. to which the packaging film is adhered, and has a strength of 0.05 to 1.5 kg / 25 mm so that the printing layer protective film should not be damaged when peeling off the packaging film.

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 is a perspective view of a sealed packaging container according to the present invention, showing an example of a sealed packaging container in which a toothbrush is accommodated therein. 1, in the sealed packaging container, the packaging film 10 is adhered to the base 12.

The packaging film 10 is composed of a polyester film of a transparent material, for example, it is vacuum-molded to fit the circular shape of the toothbrush packaging, so that the toothbrush is placed inside.

The base plate 12 includes a base plate 14, printed layers 16 and 17 printed on both sides of the base plate, and a polyurethane adhesive layer 18 and 20 applied to the surface of the above-described print layer. The layer protective films 22 and 24 and the peeling layer 26 laminated | stacked on the surface of the printing layer protective film 22 mentioned above are included. The printing layer protective film 22 described above uses a film having a strength of 0.05 to 1.5 kg / 25 mm, for example, a polyester film, a polyethylene film, or a polypropylene film so as not to be damaged when the packaging film 10 is peeled off. .

The method of manufacturing the sealed packaging container of the present invention described above

i) molding the packaging film 10 so that a space portion for accommodating the article to be packaged is formed,

ii) forming printing layers 16 and 17 printed with the required patterns or characters on the inner and outer surfaces of the base plate 14;

iii) applying an adhesive to the surface of the printing layer of the base plate to form the adhesive layers 18, 20,

iv) adhering the printing layer protective films 22 and 24 to the surface of the printing layer 16 of the base plate using the adhesive layer as a medium;

v) forming a release layer 26 on the surface of the synthetic resin film 22, and

vi) adhering the packaging film 10 to the surface of the transparent printing layer protective film 22 using the release layer as a medium.

It consists of.

In the method of manufacturing the sealed packaging container of the present invention described above, the step of forming the packaging film 10 is a groove in which the toothbrush is accommodated by using a mold having a groove in which an object to be packaged, for example, a toothbrush can be accommodated. Vacuum forming is carried out in a conventional manner so that it is formed. The packaging film 10 described above is formed of a transparent synthetic resin, and is formed of a hard synthetic resin film, for example, a hard skin-ish film or a PET film, which is not crushed by pressure applied from the outside.

The step of forming the print layer 16 on the surface of the base plate 14 is to determine the use, usage, manufacture, etc. of the object packaged on at least one surface of the synthetic resin plate of the opaque material so that the print layer is not visible from the back side of the base plate. Printing.

The step of forming the adhesive layers 18 and 20 on the surface of the printing plate may be carried out by dry lamination or extraction of an adhesive, for example, an adhesive composed of 85 to 90% by weight of a polyurethane adhesive and 10 to 15% by weight of an isocyanate curing agent. Applying by a true lamination method. Since this adhesive layer is for adhering the printing layer protective film, other synthetic resin adhesives may be used in addition to the polyurethane adhesive.

The step of adhering the printing layer protective films 22 and 24 may be performed by applying a transparent synthetic resin film that is stable even at 100 to 200 ° C., for example, a transparent film made of a polyester film, an OPI film or a nylon film on the surface of the printing layer. The adhesive layer adheres to the printed layer surface before curing. This transparent synthetic resin film for protecting a printed layer has a strength of 0.05 to 1.5 kg / mm.

The step of forming the release layer 26 is to form a hot melt adhesive layer 26 on the surface of the printing layer protective film 22, 24, in particular the surface of the printing layer protective film 22 to which the packaging film 10 is attached. As a step of applying by a gravure printing method or attaching an easy peel film, the peeling layer has an adhesive force such that the printing layer protective film 22 does not rupture when peeling the packaging film 10 adhered to the surface thereof. Ensure adhesion with the packaging film. As the adhesive for forming the above-described hot melt adhesive layer, an adhesive which does not exhibit adhesive strength at room temperature but exhibits adhesive strength when heated and pressed at 100 to 120 ° C is used. The hot melt adhesive described above is heated to 100-250 ° C. in a molten vessel and melted to apply 5 g / m ² to the surface of the substrate in a gravure manner. The hot melt adhesive may be a synthetic resin adhesive mixture having a softening point of 90 to 120 ° C., for example, 30 to 30 parts by weight of ethylene vinyl acetate resin (VA content of 10 to 42%), an aromatic C to 9 petroleum resin or an aliphatic adhesive agent. C-5 type petroleum resin. In particular, a synthetic resin adhesive composition composed of 5 to 30 parts by weight of hydrogenated hydrocarbon resin and 30 to 50 parts by weight of paraffin wax is used. The easy peel film is laminated on the surface of the synthetic resin film 22 for protecting the printed layer, and bonded by hot pressing at 100-120 ° C.

The edge of the packaging film 10 is bonded to the surface of the release layer.

The adhesion between the printing layer protective film 22 and the packaging film 10 by the above-described release layer 26 is weaker than the adhesion between the base plate 14 and the printing layer protective film 22 by the adhesive layer 18. When peeling the packaging film from the film, only the packaging film was peeled off the release layer in the state where the printing layer protective film was adhered to the base plate.

According to this structure, when peeling the packaging film 10 in order to take out a packaged article, for example, a toothbrush, the packaging film 10 isolate | separates without the printing layer protective film 22 which comprises the base 12 being damaged. Will be.

According to the present invention, the packaging film is easily peeled off, and the printing layer protective film 22 constituting the base 10 is not damaged, and all materials are made of synthetic resin, so that the separate collection is easy.

EXAMPLE

Example 1

Polyurethane two-component adhesive formed on both sides of the base plate 14 with the same print layer 16 as the product description or product name, and composed of 85 to 90% by weight of polyurethane adhesive and 10 to 15% by weight of isocyanate curing agent on the surface of the printing layer. To form an adhesive layer (18), (20) by applying an extrusion lamination method, and then the transparent synthetic resin film (22), (24) for protecting the printed layer formed of a polyester film before the adhesive layer is cured. It is laminated and bonded. Subsequently, 30 to 30 parts by weight of ethylene vinyl acetate resin (VA content 10 to 42%) on the surface of the transparent synthetic resin film 22 for printing layer protection to which the packaging film 10 is attached, and a hydrogenated hydrocarbon resin as an adhesive imparting agent. The hot-melt adhesive layer composed of 5 to 30 parts by weight and 30 to 50 parts by weight of paraffin wax was applied by heating a hot melt adhesive melted at 100 to 250 ° C. in an amount of 5 g / m ^{2 in} a gravure manner to form a hot melt adhesive layer (26). ) And dry. Subsequently, the packaging film 10 vacuum-molded according to the shape of the article to be packaged is placed on a hot plate, and the article to be packaged is placed inside the packaging film, and then the surface of the dried hot melt adhesive layer 26 constituting the base is packed with the packaging film. The laminate 10 is brought into contact with the surface of 10 and then pressed while heating to 120 ° C., so that the edges of the packaging film 10 are adhered to the surface of the printing layer protective film 22 by the hot melt adhesive layer 26.

Example 2

As in Example 1, the printing layer 16 and the transparent synthetic resin film 22 for protecting the printed layer are bonded to the base plate 14, and the Y- 02 film is laminated on the surface of the above-mentioned printed layer protective film. 12) and bond the packaging film 10 as in Example 1.

Claims (7)

In a sealed packaging container in which a transparent synthetic resin packaging film 10 is adhered to a large plate, a printed layer 6 is formed on the surface of the opaque base plate 14 where the large plate 12 describes a product description, a use, or the like. And the printing layer protective film 22 is adhered to the surface by the adhesive layer 18, and the peeling layer 26 is provided on the surface of the portion in contact with the packaging film of the printing layer protective film 22. Sealed container. The sealed packaging container according to claim 1, wherein the base plate (14) is composed of an opaque synthetic resin plate. The aromatic C-9 petroleum resin or aliphatic C-5 petroleum resin according to claim 1, wherein the release layer 26 is 30 to 30 parts by weight of ethylene vinyl acetate resin (VA content of 10 to 42%) and an adhesion imparting agent. A sealed packaging container comprising a hot melt adhesive composed of 5-30 parts by weight of hydrogenated hydrocarbon resin and 30-50 parts by weight of paraffin wax. The closed packaging container of claim 1, wherein the release layer is comprised of an easy peel film. The adhesive force between the printing layer protective film 22 and the packaging film 10 by the release layer 26 is the adhesive force between the base plate 14 and the printing layer protective film 22 by the adhesive layer 18. The weaker packaging container, characterized in that, when peeling the packaging film from the base plate, only the packaging film is peeled off from the release layer in a state where the printing layer protective film is adhered to the base plate. i) molding the packaging film 10 so that a space portion for accommodating the article to be packaged is formed, ii) forming printed layers 16 and 17 printed with the required patterns or characters on the inner and outer surfaces of the base plate 14 made of opaque synthetic resin; iii) applying an adhesive to the surface of the printing layer of the base plate to form the adhesive layers 18, 20, iv) adhering the printing layer protective films 22 and 24 to the surface of the printing layer 16 of the base plate using the adhesive layer as a medium; v) forming a release layer 26 on the surface of the synthetic resin film 22, and vi) A method of manufacturing a closed packaging container comprising adhering a packaging film (10) to a surface of a transparent printing layer protective film (22) using a release layer as a medium. The aromatic C-9 type petroleum resin or aliphatic C-5 type petroleum resin of Claim 6 whose peeling layer 26 is 30-30 weight part of ethylene vinyl acetate resins (VA content 10-42%), and an adhesive imparting agent. A method for manufacturing an airtight packaging container, comprising a hot melt adhesive layer composed of 5-30 parts by weight of hydrogenated hydrocarbon resin and 30-50 parts by weight of paraffin wax.

Images