KR101136625B1 - Display strip - Google Patents

Abstract

SUMMARY OF THE INVENTION An object of the present invention is a display strip that is easy to automate the process of attaching a bag enclosed with a product and that can be easily removed without damaging the appearance of the bag when removing the bag enclosed with the product. ) To provide.

The present invention is a display strip for attaching and displaying a plurality of bags enclosed side by side, a sealant containing at least a base layer, an easy-peel resin composition composed of an adhesive component and a cohesive fracture component. It comprises a layer, the sealant layer and the surface of the bag can be bonded by heat-sealing (heat-sealing), and further, if the sealant layer bonded by heat sealing and the surface of the bag is peeled off the sealant layer It is a display strip that is to be destroyed.

Display, strip, base layer, sealant layer, easy peel

Description

Display strips {DISPLAY STRIP}

1 is a schematic diagram showing a strip bag display.

Fig. 2 is a schematic diagram showing the shape when the bag bonded to the display strip of the present invention is removed.

Fig. 3 is a schematic diagram showing a state when removing the bag bonded to a conventional display strip.

Fig. 4 is a schematic diagram showing a change in load applied when removing the bag bonded to the display strip of the present invention.

Fig. 5 is a schematic diagram showing a change in load applied when removing a bag bonded to a conventional display strip.

6 is a schematic diagram showing an example of a step of attaching a bag enclosed with a product to the display strip of the present invention.

FIG. 7: is a schematic diagram which shows an example of the form of a sealing jaw.

FIG. 8 is a diagram showing a change in the load applied when removing the bag bonded to the display strip produced in Example 1. FIG.

FIG. 9 is a diagram showing a change in load applied when removing the bag bonded to the display strip produced in Comparative Example 1. FIG.                 

Fig. 10 is a diagram showing the results of measurement of tensile strength performed on the surface layer of the bag used in the example.

FIG. 11 is a diagram showing a change in load applied when removing the bag bonded to the display strip produced in Example 2. FIG.

FIG. 12 is a diagram showing a change in load applied when removing the bag bonded to the display strip produced in Example 3. FIG.

It is a figure which shows the change of the load applied when removing the bag couple | bonded with the display strip produced in the comparative example 2. FIG.

FIG. 14 is a view showing a change in load applied when removing a bag bonded to a display strip produced in Comparative Example 3. FIG.

FIG. 15 is a schematic diagram showing a cross-section of the display strip obtained in Example 4. FIG.

FIG. 16: is a schematic diagram which shows the cross section of the display strip obtained in Example 5. FIG.

[Description of Symbols Used in Drawings]

1: display strip

2: Bag containing the product

3: sealant layer

4: base material layer

5: sealant layer (bag side)                 

6: printing layer (bag side)

7: seal site

8: transparent sealant layer (non-stretched polypropylene film containing styrene-butadiene copolymer)

9: polyethylene layer

10: printed layer

11: base material layer (biaxially stretched polyethylene terephthalate film)

12: paper

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display strip for displaying a plurality of bags enclosed with goods side by side.

Goods such as snacks and snacks are usually sold in bags in a pillow package (vertical filling, horizontal filling). Bags containing such products are often sold side by side on the shelves of the shops. However, in this method, it is necessary to display the bags one by one manually by the display stand, and place restrictions are imposed that they cannot be displayed and sold other than a predetermined display stand.

BACKGROUND OF THE INVENTION A display and sale method of a product which does not require a display stand, called a strip bag display, is known. As shown in FIG. 1, a strip back display is a display form in which a plurality of products are attached to a tape material having a predetermined width called a display strip. In this type of display, no display stand is required, and display and display can be performed at any place such as a register of a shop or a front desk of a hotel.

As a conventional display strip, the bag which enclosed the goods through the hole is pressurized by performing a punching process previously to the predetermined position of the tape which consists of paper or resin, and sticking an adhesive tape from the back surface, for example. Adhering to pressure sensitive adhesive tapes has been used. In addition, by attaching a hook made of resin to a predetermined position of, for example, a paper or a tape made of resin, and punching a punch hole in the bag side in which the product is enclosed, It has been used to hang a product.

However, these display strips have a problem that it is difficult to automate the process of attaching a bag enclosing a product to the display strips by using a machine. Thus, strip back displays have not been widely used.

On the other hand, by providing a heat seal layer on one surface, a display strip capable of directly heat sealing and bonding a bag in which a product is sealed has been proposed. With this display strip, it is extremely easy to automate the process of attaching a bag enclosed with the product to the strip in series with a series of processes for enclosing the product in the bag.

When attaching the bag enclosed with the product to this display strip, it is necessary to combine with sufficient seal strength so that the product does not fall naturally due to the product's own weight when the display is displayed in the store or the bag does not fall off during transportation. . However, if the seal strength is increased, the surface layer of the bag is destroyed when the bag containing the product attached to the display strip is broken, thereby damaging the printing surface and worsening the appearance of the product, or in the worst case, the seal portion. There existed a problem that it propagated and peeled off to other parts and a flaw and a hole generate | occur | produce in the bag for maintaining the quality of a product.

SUMMARY OF THE INVENTION An object of the present invention is a display strip that is easy to automate the process of attaching a bag enclosed with a product and that can be easily removed without damaging the appearance of the bag when removing the bag enclosed with the product. ) To provide.

The present invention is a display strip for attaching and displaying a plurality of bags enclosed side by side, a sealant containing at least a base layer, an easy-peel resin composition composed of an adhesive component and a cohesive fracture component. It comprises a layer, the sealant layer and the surface of the bag can be bonded by heat-sealing (heat-sealing), and further, if the sealant layer bonded by heat sealing and the surface of the bag is peeled off the sealant layer It is a display strip that is to be destroyed.

A display strip for attaching and displaying a plurality of bags enclosed side by side, comprising a sealant layer containing at least a base layer and an easy-filling resin composition composed of an adhesive component and a cohesive fracture component. The surface of the bag can be bonded by heat sealing, and when the sealant layer bonded by heat sealing and the surface of the bag are peeled off, the sealant layer is broken, and when the surface of the sealant layer and the bag is peeled off, Peeling begins with an initial load lower than the tensile strength at break of the surface layer of the bag, and it is necessary to continuously or intermittently apply a load corresponding to the initial load until the peeling is completed. Display strips are also one of the present inventions.

It is preferable that the said adhesive component is at least 1 sort (s) chosen from the group which consists of a polypropylene, the copolymer of propylene and another olefin, and low density polyethylene. Here, it is more preferable that the copolymer of the said propylene and another olefin is a copolymer of propylene and the C2-C12 (except C3) alpha-olefin. In addition, the flocculation fracture component is preferably a styrene polymer, polybutene-1 or a mixture of styrene polymer and polybutene-1.

It is preferable that the said sealant layer consists of an adhesive layer and a support layer containing an easy-filling resin composition. In this case, it is preferable that the said support layer contains at least 1 sort (s) of the component which comprises an adhesive layer, and it is preferable that the said support layer contains a cohesive fracture component on the surface of an adhesive layer side. It is preferable that the said cohesive destruction component is a styrene polymer, polybutene-1, or a mixture of a styrene polymer and polybutene-1. It is preferable that the thickness of the said contact bonding layer is 1-30 micrometers, and the thickness of the said support layer is 5-50 micrometers. It is preferable that the said sealant layer is formed in the substantially whole surface.

It is preferable that the said base material layer contains at least 1 sort (s) chosen from the group which consists of biaxial oriented polypropylene, biaxially oriented polyethylene terephthalate, a metal foil, and paper.

It is preferable that the said base material layer and the said sealant layer are laminated | stacked with the adhesive agent, or the polyethylene, ethylene- (meth) acrylic acid copolymer, or ethylene- (meth) acrylic acid air between the said base material layer and the said sealant layer. It is preferable that the layer including the ionomer of coalescence is further laminated.

It is preferable that the said bag consists of at least the sealant layer and a base material layer. It is preferable that the said sealant layer contains at least 1 sort (s) chosen from the group which consists of a polypropylene, a copolymer of propylene and another olefin, and low density polyethylene, and the said sealant layer is heat-sealable. It is preferable to comprise a biaxially stretched polypropylene film. It is preferable that the said sealant layer and the said base material layer were laminated through an adhesive agent. The sealant layer and the base layer are preferably laminated through an intermediate layer, and the sealant layer and the intermediate layer are preferably laminated through an adhesive.

The merchandise exhibition body in which the display strip of the present invention and the bag enclosed with the merchandise are joined by heat sealing is also one of the present inventions.

The present invention is described in detail below.

The display strip of this invention contains the sealant layer containing at least a base material layer and an easy-filling resin composition.

In this specification, the easy-peel property means the property which can peel the film etc. which were affixed by methods, such as heat sealing, from a to-be-adhered body easily and not to be damaged using a human hand. The easy-filling resin composition means a resin composition capable of exhibiting such easy-filling properties when used in affixing to a film or an adherend. In the present invention, since it is required to easily remove the bag from the display strip without damaging the surface of the bag, it is preferable that a cohesive failure occurs mainly inside the display strip with a tensile strength lower than that of the surface layer of the bag. . In this case, it may be accompanied by peeling between the layers constituting the display strip or peeling at the interface between the display strip and the surface of the bag. Therefore, in this invention, the easy-filling resin composition contains the component (henceforth a cohesive fracture component) which contributes to easy-filling property besides the component (henceforth an adhesive component) which contributes to the adhesiveness with the surface of a bag. have.

The adhesive component is not particularly limited as long as it can impart the sealant layer to the surface of the bag and heat sealable properties. However, many of the bags currently used in Europe and America are heat-sealed biaxially stretched polys as sealant layers. In view of the use of propylene (OPH), copolymers of propylene and other olefins such as polypropylene, propylene-ethylene-butene terpolymers, and single-site catalyst systems At least 1 sort (s) chosen from the group which consists of low density polyethylene, such as linear polyethylene, is used preferably. Especially, it is more preferable to mix | blend low density polyethylene further in order to make melting | fusing point low as a main component and the copolymer of polypropylene or propylene and another olefin. Here, as another olefin, C2-C12 alpha olefin (except C3) is mentioned, for example, Ethylene, 1-butene, 3-methyl-1- butene, 3-methyl-1- Pentene, 4-methyl-1-pentene, 4-dimethyl-1-pentene, vinylcyclopentene, vinylcyclohexane and the like. As a copolymer of the said propylene and another olefin, the bipolymer or terpolymer of propylene and these monomers is used preferably.

The cohesive destruction component is not particularly limited as long as it can provide easy peelability that is more easily broken than the surface layer of the bag facing the sealant layer. Examples thereof include styrene-based polymer and polybutene-1.

In this specification, a styrene polymer means resin which has styrene monomers, such as styrene, (alpha) -methylstyrene, and chlorostyrene, as a structural unit. More specifically, homopolymers of styrene monomers and copolymers of styrene monomers with other monomers are included. Herein, the copolymer includes a graft copolymer and a block copolymer. As said other monomer, C2-C12 alpha olefins, such as an acrylonitrile, (meth) acrylic acid, (meth) acrylic acid ester, ethylene, propylene, butylene; C4-C15 conjugated diene type monomers, such as butadiene and isoprene, etc. are mentioned.

Examples of the styrene polymers include styrene-butylene copolymers, styrene-butylene-styrene block copolymers, styrene-isoprene copolymers, styrene-isoprene-styrene block copolymers, styrene-butadiene copolymers, and styrene- Styrene-type elastomers, such as a butadiene olefin block copolymer, etc. are mentioned. These styrene polymers and polybutene-1 may be used alone or in combination of two or more thereof.

The sealant layer may be made of a single layer or may be made of a plurality of layers. In the case where the sealant layer is composed of a single layer, the content of the adhesive component and the cohesive fracture component is not particularly limited, but is appropriately selected in accordance with the surface layer of the bag to be joined. In general, the greater the content of the adhesive component, the higher the heat sealability, and the greater the content of the cohesive fracture component, the more likely the cohesive failure occurs. Moreover, you may mix | blend so that content of the adhesive component of the side of said sealant layer and the heat sealing side may become large.

In the case where the sealant layer is formed of a plurality of layers, the sealant layer contains the above-mentioned easy-filling resin composition to support the adhesive layer adhered to the surface layer of the bag by heat sealing, and to support the adhesive layer, and to bond the substrate layer and the adhesive layer together. It is preferable that a support layer is included. In this case, the adhesive layer may be further composed of a plurality of layers, and the initial load to be described later is reduced by increasing the content of the cohesive fracture component of the layer in contact with the surface layer of the bag and decreasing the content of the cohesive fracture component toward the support layer. It is possible to impart the performance that the load required until completion of peeling after application becomes larger than the initial load and becomes larger as the distance between the chucks increases. In addition, the support layer, polypropylene; Polyethylene; A composition comprising the component forming the adhesive layer, such as a copolymer of ethylene or propylene with another α-olefin, or a component close to these, and having a melting point slightly higher than the adhesive layer, It is preferable in addition to supporting an adhesive layer, ensuring adhesiveness with an adhesive layer. As a result, even when interlaminar fracture occurs between the adhesive layer and the support layer at the time of peeling, since the affinity between the adhesive layer and the support layer is high, in order to peel off, a load corresponding to the initial load is continuously applied until peeling is completed. It can give you the performance that you need to continue walking intermittently or intermittently.

It is preferable that the thickness of the said contact bonding layer is 1-30 micrometers. If it is less than 1 micrometer, sufficient seal strength will not be obtained, and if it exceeds 30 micrometers, it will take time to heat-seal. In addition, the thickness of the support layer is preferably 5 ~ 50㎛. If it is less than 5 micrometers, the function as a support layer mentioned above will not fully be acquired, and if it exceeds 50 micrometers, it will take time to heat-seal.

It is preferable that the said sealant layer is transparent. In the case where the sealant layer is transparent, the appearance of the sealant layer after peeling adheres to the bag in which the product is enclosed.

The sealant layer may be formed on substantially the entire surface of the display strip of the present invention, may be formed like a stripe pattern, or may be formed only at a predetermined position to attach a product. In the case where the display strip is formed on substantially the entire surface of the display strip, the product can be attached to any position of the display strip, which is preferable. In addition, the term "substantially" means that the position which performed the perforation process, the edge which does not stick a product, etc. are not included here.                     

The surface of the bag in which the sealant layer and the product are encapsulated can be bonded by heat sealing, and the sealant layer is destroyed when the sealant layer bonded by the heat sealing and the surface of the bag are peeled off.

The basic aspect of the destruction of the said sealant layer is shown in FIG. In the embodiment shown in Fig. 2A, the breakdown occurs almost at the interface between the sealant layer and the bag, and only a part of the surface of the sealant layer is broken. In the embodiment shown in FIG. 2 (b), cohesive failure occurs in the sealant layer. In the embodiment shown in Fig. 2 (c), after the sealant layer has been cohesively broken and broken, interlayer breakdown occurs when the breakdown reaches the plural layers forming the sealant layer. Destruction of the sealant layer may occur in any of the above aspects, or in a mixed form of these aspects.

In the conventional display strip, when removing the bag encapsulating the product adhered to the display strip by heat sealing, as shown in Fig. 3, even when the surface of the bag is agglomerated and destroyed, even the printed layer of the bag is damaged. The printed surface of the bag was damaged or even a portion other than the seal portion was damaged. In the display strip of the present invention, the sealant layer on the display strip side contains an easy-filling resin composition, so that the sealant layer on the display strip side is more likely to be broken than the surface of the bag, and as shown in FIG. In this case, the sealant layer on the display strip side is always destroyed, so that the bag containing the product can be removed without damaging the appearance.

In the display strip of the present invention, in addition, when peeling the sealant layer bonded by heat sealing and the surface of the bag, the peeling is started by the initial load lower than the tensile breaking strength of the surface layer of the bag, and the initial load until the peeling is completed. It is preferable to continuously apply a load corresponding to the continuously or intermittently.

The present inventors analyzed the case where the bag side is damaged at the time of peeling, when combining a bag by the conventional display strip. As a result, in many cases where the bag side is damaged, the load applied when peeling off the bag and the display strip joined by heat sealing is measured, and this is determined by the distance between the display strip and the bag (distance between the chucks). When plotted, it was found that a graph of the form shown in Fig. 5A is obtained. As shown in Fig. 5 (b), first, when a certain load is reached in the peeling initial stage (distance between chucks: A '), the surface layer on the back side (here, the surface layer is a stack of 2 to 5 layers). In the bag formed of a film, it means one layer on the outer surface side of the bag, and when the outer surface side of the bag is formed of heat-sealing biaxially oriented polypropylene, not only the heat-sealing biaxially oriented polypropylene layer but also the outermost heat sealing layer Since the crack is generated on the outermost surface of the surface, and the fracture proceeds to the inside of the surface layer, the load decreases rapidly and progresses until the completion of peeling (distance between chucks: B ') at a very weak load. It seems to be showing.

In contrast, in a preferred embodiment of the display strip of the present invention, the load applied when peeling off the display strip and the bag joined by heat sealing is measured, and this is shown with respect to the distance between the display strip and the bag (distance between the chucks). When plotting, for example, a graph of the form shown in Fig. 4 (a) or Fig. 4 (a ') is obtained. The schematic diagram which showed the form of peeling at this time is shown to FIG. 4 (b) or FIG. 4 (b '). That is, since the sealant layer contains an easy-filling resin composition, first, an initial load lower than the tensile breaking strength of the surface layer of the bag causes cohesive failure of the sealant layer, and peeling starts (distance between chucks: A). Thereby, since the surface layer of a bag side is not destroyed, the bag which enclosed the goods can be removed, without damaging an external appearance. Next, after peeling starts, it is preferable to continuously and intermittently carry the load corresponding to an initial load until peeling is completed (distance between chucks B).

In order to easily detach the product from the display strip, it is necessary to start peeling with a relatively weak force, but as in the conventional display strip, once the peeling load is rapidly lowered after the peeling is started, Even if the load is momentarily unintentionally at the time of transportation or display, goods fall easily. In a preferred embodiment of the display strip of the present invention, since the load corresponding to the initial load must be continuously or intermittently applied until the peeling is completed, the product is unintentionally dropped. It can prevent.

This is caused, for example, by the inclusion of the easy-filling resin composition in the sealant layer of the display strip of the present invention, before the surface of the bag is broken, at the interface between the surface of the bag and the sealant layer, or by cohesive failure of the sealant layer. At the same time, when the sealant layer is made up of a plurality of layers, the bonding force between the layers is increased so that the interlayer breakage does not occur, or the interlayer breakdown does not proceed unless a relatively large load is applied even if the breakage occurs. This can be achieved.

In addition, the continuous loading of the load corresponding to the initial load here means that the load required until the completion of peeling after the initial load is about the same as the initial load, but unless it is suddenly lowered, There may be some changes. Preferably, it is preferable to continue to apply the load in the range of ± 50% to the initial load. Moreover, it is more preferable that the load required until peeling completion after giving an initial load becomes large as the distance between chucks increases (FIG. 4 (a)).

In addition, intermittently continuing to apply the load corresponding to the initial load means that even if the load can be greatly reduced once the initial load is applied, the necessary load is increased again until peeling is completed, and thus ± 50% of the initial load is applied. This means that a peak showing the load within the range is shown (Fig. 4 (a ')).

Although it does not specifically limit as a base material layer which comprises the display strip of this invention, It is an application which hangs up a large number of goods, and has sufficient strength, and having heat resistance which does not melt or deteriorate when heat-sealing. It is preferable that it consists of at least 1 sort (s) chosen from the group which consists of biaxially stretched polypropylene, biaxially stretched polyethylene terephthalate, metal foil, and paper, for example.

Although it does not specifically limit as thickness of the said base material layer, It is preferable that it is 30-200 micrometers. If the thickness is less than 30 µm, sufficient strength may not be obtained, and there is a risk of breakage during display or removal of the bag enclosed with the merchandise. If the thickness exceeds 200 µm, the base layer acts as a heat insulator to sufficiently seal the sealant layer. No heat is transferred

In the display strip of the present invention, a layer made of an ionomer of polyethylene, ethylene- (meth) acrylic acid copolymer or ethylene- (meth) acrylic acid copolymer is further laminated between the base layer and the sealant layer. desirable. Since these resins are flexible and have high tensile elongation, when the layers of such resins are laminated, the strength of the entire display strip of the present invention is improved, and a hole punch for hanging the display strips is performed. When the product is removed, the load on the part can be tolerated. In addition, this layer serves to bond the base layer and the sealant layer. As a method of laminating such a layer, it can carry out by laminating | stacking predetermined resin while extrusion molding between a base material layer and a sealant layer. In addition, you may laminate | stack the said base material layer and a sealant layer through an adhesive agent by a well-known dry lamination method.

Although it does not specifically limit as thickness of the layer which consists of said polyethylene etc., It is preferable that it is 5-50 micrometers. If it is less than 5 µm, a sufficient strength improvement effect will not be obtained. If it exceeds 50 µm, the entire display strip will be thick, resulting in a heat insulating effect.

Moreover, the display strip of this invention may have a layer which ensures another function between the said base material layer and the said sealant layer. As such a layer, a printed layer etc. are mentioned, for example. In particular, when a polymer is used as the base material layer, the print layer is preferably provided between the base material layer and the sealant layer, and when paper is used as the base material layer, printing is performed on the surface where the paper is not laminated. It is preferable.

Although it does not specifically limit as a form of the display strip of this invention, For example, a tape form, a sheet form, etc. are mentioned. In addition, one end of the display strip of the present invention may be subjected to a perforation process or to attach a clip or the like to be hooked in order to display the display strip on which the product is attached. In particular, the drilling process is preferable because it is easily performed during a series of automated processes. However, when a hole is drilled in a display strip and hanged on a hook, it is easy to tear a hole and to tear it, so that the said base material layer is reinforced or has a polyethylene layer between the said base material layer and the said sealant layer. It is preferable to use.

As a bag which encloses the goods stuck to the display strip of this invention, any of the bags normally used can be used, Especially, it is preferable to include at least the sealant layer and the base material layer. It is suitable that the sealant layer on the surface of the bag includes at least one selected from the group consisting of polypropylene, a copolymer of propylene with other olefins, a low density polyethylene and an ethylene-vinyl acetate copolymer. Moreover, it is suitable that the sealant layer of the surface of the said bag consists of a heat-sealing biaxially stretched polypropylene (OPH) film. The heat seal biaxially stretched polypropylene (OPH) film is an extremely thin terpolymer layer made of a resin having heat sealability such as propylene-ethylene-butene terpolymer on the surface of a biaxially stretched polypropylene (OPP) film. It means that the heat seal is imparted by installing the, and in particular, it is widely used and used as a packaging material in Gumi. In addition, it is preferable that the sealant layer on the surface of the bag does not contain the agglomeration fracture component described above.

It is preferable that the sealant layer and base material layer which comprise the bag which encloses the said goods were laminated through the adhesive agent. Since high interlayer adhesion is obtained by laminating through an adhesive, there is no breakage between layers of the bag when the bag is removed from the display strip of the present invention, and breakage occurs at the interface between the display strip and the bag or inside the display strip. It becomes easy.

Moreover, it is also preferable that the sealant layer and base material layer which comprise the bag which encloses the said goods were laminated through the intermediate | middle layer. In this case, it is preferable that the sealant layer and the intermediate layer are laminated via an adhesive agent. Since the high interlayer adhesion is obtained by laminating the sealant layer and the intermediate layer via the adhesive, there is no breakage between the layers of the bag when detaching the bag from the display strip of the present invention, and the interface between the display strip and the bag or inside the display strip Esau's destruction is likely to occur.

A bag encapsulating such a product can be produced by co-extrusion of a heat sealable polymer with a polymer forming a base layer or by coating a heat sealable polymer such as a hot-melt adhesive on the base layer. have.

As a bag which encloses the goods stuck to the display strip of this invention, for example, a biaxially-stretched polypropylene (OPP) layer / printing layer / adhesive layer / polyethylene (PE) layer / aluminum vapor deposition polyethylene terephthalate (PET) layer / Polyethylene (PE) layer / non-stretched polypropylene (CPP) layer comprising; Biaxially stretched polypropylene (OPP) layer / printed layer / polyethylene (PE) layer / aluminum vapor deposition polyethylene terephthalate (PET) layer / polyethylene (PE) layer / non-stretched polypropylene (CPP) layer; A biaxially oriented polypropylene (OPP) layer / printing layer / aluminum vapor deposition non-oriented polypropylene (CPP) layer; A biaxially stretched polypropylene (OPP) layer / printing layer / polyethylene (PE) layer / aluminum vapor deposition non-stretched polypropylene (CPP) layer; A transparent vapor-deposited biaxially oriented polyethylene terephthalate (PET) layer / printing layer / non-oriented polypropylene (CPP) layer; A heat seal biaxially stretched polypropylene (OPH) layer / printing layer / polyethylene (PE) layer / aluminum vapor deposition heat seal biaxially stretched polypropylene (OPH) layer; A heat seal biaxially oriented polypropylene (OPH) layer / printing layer / polyethylene (PE) layer / aluminum vapor deposition non-oriented polypropylene (CPP) layer; And a heat-sealing biaxially oriented polypropylene (OPH) layer / printing layer / adhesive layer / polyethylene (PE) layer / aluminum vapor deposition non-stretched polypropylene (CPP) layer.

Although it does not specifically limit as a method of manufacturing the display strip of this invention, A conventionally well-known method can be used. For example, a method of adhering the base material layer and the sealant layer separately produced by an extrusion molding method through an adhesive agent, and when the polyethylene layer or the like is provided, laminating the polyethylene layer and the sealant layer on the base material layer The method can be mentioned.

Moreover, when the said sealant layer consists of several layers containing a peeling layer and a heat seal layer, it can manufacture by co-extrusion molding method.

Although it does not specifically limit as a method of sticking the bag which enclosed the goods to the display strip of this invention, It is preferable to stick by the procedure shown in FIG. 6, for example. In this method, first, a bag containing goods is placed with the front of the bag in contact with the display strip, and then the top of the bag is heat sealed to bond the bag to the display strip (Fig. 6 (a)). At the position where the bag containing a predetermined number of goods is bonded to the display strip, the bag containing each product is inverted up and down on the axis of the heat seal so that the surface of the bag is opposite to the display strip (Fig. 6 (b)). . In this state, when one end of the display strip is displayed by hanging down on a hook or the like, since the adhesive portion between the bag and the display strip is as shown in Fig. 6 (c), if the bag containing the product is pulled downward, It can be easily removed from the display strip.

The seal strength between the bag and the display strip is not particularly limited, but is preferably 1 to 50 N / 15 mm. If it is less than 1 N / 15 mm, the product may fall off due to its own weight due to the weight of the product, and if it exceeds 50 N / 15 mm, it may not fall even when pulling the bag enclosed with the product in a stretched state. More preferably, it is 5-30 N / 15 mm.

In addition, about the sealing state and peeling state of a bag and a display strip, it can change large also by sealing conditions. The sealing condition may be changed depending on the shape of the sealing jaw, in addition to the temperature at the time of sealing, the contact time of the sealing jaw, the contact pressure, and the like. As a shape of a sealing jaw, the thing of the shape shown in FIG. 7 can be used, for example. Therefore, it is preferable to select an optimal seal condition according to the adhesive component, the cohesive fracture component, or the material of the surface layer of the bag, which forms the sealant layer of the display strip of the present invention. The width of the sealing jaw is selected according to the desired length of the adhesive surface between the display strip and the bag surface, but this length is the distance from the start of the peeling to the completion of the peeling when the bag is removed from the display strip described above. Substantially decide.

Using the display strip of this invention, it is possible to fix the bag which enclosed the goods by heat sealing, and can attach a large quantity of goods easily by automation. In addition, when the bag enclosed with the goods is removed from the display strip, the sealant layer on the display strip side is destroyed, so that the appearance of the bag is not impaired.

The merchandise exhibition body in which the display strip of the present invention and the bag enclosed with the merchandise are joined by heat sealing is also one of the present invention.

Best Mode for Carrying Out the Invention

Although an Example is given to the following and this invention is demonstrated in detail again, this invention is not limited only to these Examples.

(Example 1)

On a biaxially stretched polyethylene terephthalate film having a thickness of 38 µm, a film having a cohesive fracture-type easy-filling property having a thickness of 60 µm (manufactured by Showa Denko Plastic Products, Sholex Allomer Film TPF1) is usually dried. The display strip was produced by slit the laminated body laminated using the lamination method to 35 mm width.

(Comparative Example 1)

A paper having a thickness of 70 g / m 2 in terms of basis weight is used as a base material layer, and a heat-seal biaxially stretched polypropylene film (OPH) is laminated thereon via an adhesive, and the resulting laminate is 35 mm wide using a slitter. The display strip was produced by slit vertically.

(Example 2)

On a biaxially stretched polyethylene terephthalate film having a thickness of 50 µm, a film having a cohesive fracture-type easy-filling property having a thickness of 35 µm (manufactured by Showa Denko Plastic Products, SHOLEX Allomer Film TP9) is usually dried. The display strip was produced by slit the laminated body laminated using the lamination method to 35 mm width.

(Example 3)

On a biaxially stretched polyethylene terephthalate (PET) film having a thickness of 50 µm, a film having a cohesive fracture-type easy-filling property (manufactured by Showa Denko Plastic Products, Sholex Allomer film TPF1) and a common sandwich lamination A low density polyethylene (LDPE) film used for extrusion was extruded to obtain a laminate film of PET (50 μm) / LDPE (30 μm) / TPF1 (40 μm). A display strip was produced by slit the obtained laminate film vertically to 35 mm width.

(Comparative Example 2)

Seal-free non-stretched polypropylene (Futamura Kagaku Kogyo, trade name "FCMN") is dry laminated on a coated paper having a basis weight of 90 g / m 2, which is vertically formed to a width of 35 mm using a slitter. The display strip was produced by slit.

(Comparative Example 3)

A general purpose unstretched polypropylene film having a thickness of 50 µm as a base material layer, and having a thickness of 30 µm as a low density polyethylene layer and a sealant layer having a thickness of 30 µm, and a sealant layer having a thickness of 30 µm. Was laminated in this order, and the display strip was produced by slitting it vertically to 35 mm width using a slitter.

The display strips produced in Example 1 and Comparative Example 1 were heat-sealed with a bag formed from a film having the following configuration. Attachment of the bag to the display strip is performed as a heat sealing condition using a strip bag applicator (the shape of the sealing jaw is shown in Fig. 7 (b)) described in the specification of Japanese Patent Application No. 2002-251846 belonging to the application of Ishida Co., Ltd. , 190 ° C and 350 msec.

Constitution of Bag: Heat Sealed Biaxially Stretched Polypropylene (OPH) Layer (20 µm) / Printed Layer / Polyethylene (PE) Layer (10 µm) / Aluminum Deposition Heat Sealed Biaxially Stretched Polypropylene (OPH) Layer (20 µm)                     

After sealing with bag, cut to 15mm width and measure the change of load applied to the thread at a tensile speed of 300mm / min using a tensile tester (Strograph V1-C, manufactured by Toyo Seiki Seisakusho Co., Ltd.). did. In addition, the tensile strength was measured under the same conditions for the surface layer (OPH) of the bag used for comparison.

The change in the load applied when removing the bag bonded to the display strip fabricated in Example 1 is shown in FIG. 8, and the change in the load applied when removing the bag bonded to the display strip fabricated in Comparative Example 1 is shown in FIG. The measurement result of the tensile strength which performed the surface layer of the bag is shown in FIG.

As shown in Fig. 10, while the surface layer of the bag had a strength of 40 N, the display strip produced in Example 1 was able to be removed without damaging the surface of the bag at a lower strength than this. As shown in FIG. 8, in the display strip of Example 1, a load corresponding to the initial load is still applied, although intermittently from the time of peeling to completion. In the case of the comparative example 1 shown in FIG. 9, since a crack generate | occur | produced in the surface layer of a bag and a crack progresses in the inside of a bag surface layer, destruction advanced at the strength lower than the strength which the surface layer of a bag has.

In addition, for the obtained samples, the display produced in Example 1 was measured by manually stacking in a corrugated cardboard carton and counting the number of goods dropped from the stacked state until the display was performed. In the case of using the strip, all of the products did not fall, whereas in the case of using the display strip produced in Comparative Example 1, three out of ten dropped when stacked, and dropped four to five again when exhibited.

In addition, the display strips produced in Examples 2 and 3 and Comparative Examples 2 and 3 were evaluated by the following method.

50 micrometers in thickness which consists of a structure of a seal biaxially stretched polypropylene layer (20 micrometers) / low density polyethylene layer (10 micrometers) / seal aluminum vapor deposition biaxially stretched polypropylene layer (20 micrometers) as a material of a bag Prepared the film.

The material of a display strip and a bag was sealed on the conditions of the sealing temperature of 190 degreeC, the sealing time of 0.5 second, and the sealing pressure of 0.4 MPa using the heat gradient tester (The Toyo Seiki Seisakusho make, HEATGRADIENT).

After sealing, it was cut to a width of 15 mm and a change of load applied to the sealing part at a tensile speed of 300 mm / min was measured using a tensile tester (Strograph V1-C, manufactured by Toyo Seiki Seisakusho Co., Ltd.). In addition, the state of peeling was observed.

As a result, in the case of using the display strips produced in Examples 2 and 3, the display strips produced in Comparative Examples 2 and 3 were cracked in the bag surface layer while the display strips were removed without damaging the bag surface. Occurred and destruction advanced to the inside on the bag surface.

For the display strips fabricated in Examples 2 and 3, the measurement results of the load change are shown in FIGS. 11 and 12, respectively, and the results of using the display strips fabricated in Comparative Examples 2 and 3 are shown in FIGS. 13 and 14, respectively. Indicated.

11 and 12, and 13 and 14, in the case of the display strips produced in Comparative Examples 2 and 3, although the initial load is slightly higher, the crack progresses from the surface layer of the bag to the inside of the surface layer of the bag. It turned out that it was a result of greatly falling. In addition, in FIG.13 and FIG.14, although the load rose again in the vicinity of the time of cutting | disconnection after the load fell largely, this shows only that the measurement of the intensity | strength of the next sample is beginning because the sealing sample was produced continuously.

(Example 4)

A lead-free styrene-butadiene copolymer containing a biaxially stretched polyethylene terephthalate film having a thickness of 50 µm as a base layer and having a thickness of 20 µm as a cohesive fracture component as a printing layer, a polyethylene layer having a thickness of 30 µm and a transparent sealant layer thereon. The new polypropylene film was laminated in this order, and the obtained laminated body was slit vertically to 35 mm width using the slitter, and the display strip was produced. The schematic diagram which shows the cross section of the obtained display strip is shown in FIG.

(Example 5)

A non-stretched poly containing a styrene-butadiene copolymer used in Example 4 having a thickness of 70 g / m 2 in terms of basis weight as a base material layer, and having a polyethylene layer having a thickness of 30 μm and a transparent sealant layer having a thickness of 20 μm. A propylene film was laminated in this order, and the obtained laminate was produced by slitting in a 35 mm width using a slitter to produce a display strip. The schematic diagram which shows the cross section of the obtained display strip is shown in FIG.

(Example 6)                     

On a biaxially stretched polyethylene terephthalate film having a thickness of 50 μm, a laminate obtained by laminating a film having a cohesive fracture type easy-filling property of 50 μm in thickness (manufactured by Tosero, CMPS series 013C) using a conventional dry laminating method was used. It was possible to produce a display strip by slit it 35 mm wide.

(Example 7)

On a biaxially stretched polyethylene terephthalate (PET) film having a thickness of 50 µm, an extruded film (PB-1) consisting of a propylene-ethylene copolymer, polyethylene and polybutene-1, and low density polyethylene (LDPE) used for ordinary sandwich lamination extrusion ) The film was extruded to obtain a laminate film of PET (50 μm) / LDPE (30 μm) / PB-1 (50 μm), and the resulting laminate film was slit to 35 mm width to form a display strip. I could make it.

(Example 8)

On a biaxially stretched polyethylene terephthalate (PET) film having a thickness of 50 µm, a VMX film (XB15FT manufactured by J-Film Co., Ltd.) having cohesive fracture-type easy-filling property and a low density polyethylene (LDPE) film used for ordinary sandwich lamination extrusion Extrusion was performed to obtain a laminate film of PET (50 μm) / LDPE (20 μm) / XB15FT (30 μm), and the obtained laminate film was slit vertically to 35 mm width to produce a display strip.

(Example 9)

A tandem laminator based on a biaxially stretched polyethylene terephthalate (PET) film having a thickness of 12 µm and having a cohesive fracture easy-filling property (Alla Film TP6, manufactured by Showa Denko Plastic Products Co., Ltd.). Polyethylene film and aluminum deposition biaxially stretched polyethylene terephthalate (VMAL-PET) film using a conventional sandwich lamination extrusion, PET (12㎛) / PE (12㎛) / VMAL-PET (12㎛) / PE ( The 5-layer film of 12 micrometers) / TP6 (35 micrometers) was obtained, and the obtained 5-layer film was slit to 35 mm width, and the display strip was produced.

(Example 10)

Printing was performed on a biaxially stretched polypropylene film having a thickness of 30 µm. On the other hand, aluminum vapor deposition was performed on one surface of the film (Showa Denko Plastic Products Co., Ltd. product, Allomer film TPF-1) which has a 40 micrometers-thick cohesive fracture-type easy-fill property. The obtained two film printing surface and the aluminum vapor deposition surface were combined, it laminates by a normal dry lamination method, the laminated film was obtained, and the obtained laminated film was slit to 35 mm width, and the display strip was produced. .

(Example 11)

A film having a cohesive fracture-type easy-filling property in which aluminum was deposited on one surface on a printing surface of a biaxially stretched polyethylene terephthalate (PET) film having a thickness of 25 µm printed on one surface (manufactured by Showa Denko Plastic Products Co., Ltd.) PET (25 μm) / printed layer / EAA (15 μm) / VM-AlTPF-1 (40 μm) by extrusion lamination of the allomer film TPF-1) and the ethylene acrylic acid copolymer (EAA) film By obtaining the laminated film which consists of these, and cutting the obtained laminated | multilayer film to 35 mm width longitudinally, the display strip was produced.

(Example 12)

A non-stretched polypropylene film having a biaxially stretched polyethylene terephthalate film having a thickness of 50 μm as a base layer and having a low density polyethylene layer and a sealant layer having a thickness of 30 μm and a cohesive fracture type easy-filling polypropylene having a thickness of 40 μm (single active point) An adhesive layer having a thickness of 8 µm comprising a resin composition containing 60% by weight of catalyst-based linear polyethylene, 20% by weight of propylene homopolymer, and 20% by weight of styrene butadiene hydrogenated polymer having a styrene content of 67% by weight, and ethylene content of 4.5% by weight A laminate of a support layer having a thickness of 32 μm consisting of a resin composition containing 40% by weight of phosphorus propylene-ethylene random copolymer and 60% by weight of linear polyethylene) in this order, and a 35 mm width using a slitter. Display strips could be produced by slit vertically.

(Example 13)

A non-stretched polypropylene film having a biaxially stretched polypropylene film having a thickness of 50 µm as a base layer and having a cohesive fracture type easy-filling property having a thickness of 20 µm as a low density polyethylene layer and a sealant layer having a thickness of 30 µm thereon (Futamura Kagaku) Co., Ltd. product name "FCMSO") was laminated in this order, and it was possible to produce a display strip by slitting this vertically to 35 mm width using a slitter.

(Example 14)

Instead of a low-density polyethylene layer with a thickness of 30 µm, Nonsol Bond (manufactured by Daiichi Seika Co., Ltd., product number XC-231 (base material) and XA-126 (hardener) in a ratio of 10: 4 And 1.0 g / m 2 were applied by dry lamination, and the substrate layer and the sealant layer were adhered to each other, and a display strip was produced in the same manner as in Example 4.

(Example 15)

Instead of the low-density polyethylene layer having a thickness of 30 μm, an adhesive (manufactured by Takeda Co., Ltd., trade name “TAKELAC A969V / TAKENATE A5”) was used, and 1.0 g / m 2 was applied by dry lamination to coat the substrate layer. A display strip could be produced in the same manner as in Example 4 except that the sealant layer was bonded.

According to the present invention, it is easy to automate the process of attaching a bag enclosed with a product, and when removing the bag enclosed with a product, a display strip which can be easily removed without damaging the appearance of the bag can be provided.

Claims (21)

It is a display strip for putting together a plurality of bags enclosed with products side by side and displaying it, It comprises the sealant layer containing the base material layer and the easy-filling resin composition which consists of an adhesive component and a cohesive fracture component at least, The sealant layer and the surface of the bag can be bonded by heat sealing, The sealant layer may be broken by peeling the surfaces of the sealant layer and the bag bonded by heat sealing. It is a display strip for putting together a plurality of bags enclosed with products side by side and displaying it, It comprises the sealant layer containing the base material layer and the easy-filling resin composition which consists of an adhesive component and a cohesive fracture component at least, The sealant layer and the surface of the bag can be bonded by heat sealing, When the sealant layer bonded by heat sealing and the surface of the bag are peeled off, the sealant layer is broken, and when peeling off the surfaces of the sealant layer and the bag, the sealant layer is peeled off by an initial load lower than the tensile breaking strength of the surface layer of the bag. A display strip, characterized in that it is necessary to continuously or intermittently apply a load corresponding to the initial load until peeling is completed. The display strip according to claim 1 or 2, wherein the adhesive component is at least one member selected from the group consisting of polypropylene, a copolymer of propylene with other olefins, and low density polyethylene. The display strip according to claim 3, wherein the copolymer of propylene with other olefins is a copolymer of propylene with an α-olefin having 2 to 12 carbon atoms (excluding 3 carbon atoms). The display strip according to claim 1 or 2, wherein the cohesive failure component is a styrene polymer, polybutene-1 or a mixture of styrene polymer and polybutene-1. The display strip according to claim 1, wherein the sealant layer comprises an adhesive layer and a support layer containing an easy-filling resin composition. The display strip according to claim 6, wherein the support layer contains at least one kind of components constituting the adhesive layer. The display strip according to claim 6, wherein the support layer contains a cohesive fracture component on the surface of the adhesive layer. The display strip according to claim 8, wherein the cohesive failure component is a styrene polymer, polybutene-1 or a mixture of styrene polymer and polybutene-1. The display strip according to claim 6, wherein the adhesive layer has a thickness of 1 to 30 µm and the support layer has a thickness of 5 to 50 µm. The display strip according to claim 1, wherein the sealant layer is formed on an entire surface. The display strip according to claim 1, wherein the base layer comprises at least one selected from the group consisting of biaxially stretched polypropylene, biaxially stretched polyethylene terephthalate, metal foil and paper. The display strip according to claim 1, wherein the base layer and the sealant layer are laminated by an adhesive. The layer comprising an ionomer of polyethylene, ethylene- (meth) acrylic acid copolymer or ethylene- (meth) acrylic acid copolymer is further laminated between the base material layer and the sealant layer. Display strip, characterized in that. The display strip according to claim 1, wherein the bag comprises at least a sealant layer and a base layer. The display strip according to claim 15, wherein the sealant layer of the bag comprises at least one selected from the group consisting of polypropylene, a copolymer of propylene with other olefins, and low density polyethylene. The display strip according to claim 15, wherein the sealant layer of the bag comprises a heat seal biaxially stretched polypropylene film. The display strip according to any one of claims 15 to 17, wherein the sealant layer of the bag and the substrate layer of the bag are laminated via an adhesive. 18. The display strip according to any one of claims 15 to 17, wherein the sealant layer of the bag and the base layer of the bag are laminated via an intermediate layer. 20. The display strip of claim 19, wherein the sealant layer of the bag and the intermediate layer of the bag are laminated via an adhesive. A merchandise exhibition body in which the display strip according to claim 1 and the bag in which the merchandise is enclosed are joined by heat sealing.

Images