JP4532934B2 - Product exhibit - Google Patents

Description

The present invention relates to a commodity display body in which a bag enclosing a commodity and a display strip are combined.

Merchandise such as snacks is usually sold in the form of a pillow package (vertical pillow, horizontal pillow) packaged in a bag. Bags enclosing products in this way are often sold side by side on store shelves. However, according to this method, it is necessary to manually display one bag at a time on the display shelf, and there is a place restriction that it can only be displayed and sold on a predetermined display shelf.

There is known a method of displaying and selling products that do not require a display shelf, which is called strip bag display. The strip bag display is a display form in which a plurality of products 2 are attached to and suspended from a tape material (display strip 1) having a predetermined width as shown in FIG. This display form does not require a display shelf and can be displayed and sold at any place such as a store cash register or a hotel reception.

Conventionally, as a display strip, for example, by punching in advance at a predetermined position of a tape made of paper or resin, and sticking the adhesive tape from the back, the bag enclosing the product is stuck on the adhesive tape through the hole. Attached ones were used. In addition, for example, by attaching a resin hook in advance to a predetermined position of a tape made of paper or resin, and opening a hole punch on the bag side in which the product is enclosed, the product is hooked at that position. The one to attach was also used.

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 strip using a machine. Therefore, the strip bag display has not been widely used.

On the other hand, a display strip has been proposed in which a heat-sealed layer is provided on one side so that a bag enclosing a product can be directly heat-sealed and bonded. If this display strip is used, it is extremely easy to automate the process of attaching a bag enclosing a product to the display strip continuously with a series of steps of enclosing the product in a bag.

When attaching bags containing products to this display strip, bond them with sufficient sealing strength so that they do not fall naturally due to the weight of the products when they are displayed at the storefront, or the bags are not removed during transportation. It is necessary to. However, if the seal strength is increased, when removing the bag enclosing the product attached to the display strip, the surface layer of the bag will be destroyed and the printed surface will be damaged, making the product look worse. In this case, there is a problem in that the product propagates to a part other than the seal part and peels off, and a bag or a hole may be formed in the bag for maintaining the quality of the product.

The present invention has been made in view of the above situation, and an object of the present invention is a product display body in which a bag enclosing a product is attached to a display strip, and when removing the bag enclosing the product, the appearance of the bag An object of the present invention is to provide a product display body that can be easily removed without impairing the product.

The present invention is a product display body in which a product-enclosed bag and a display strip are attached by heat sealing, and the bag is a surface layer (including a biaxially stretched film) at least on the side attached to the display strip. A), and the surface layer (A) has a heat-sealable thin layer containing a polymer of the same type as the polymer constituting the surface layer (A) formed on the outermost surface, or embossing is performed. The display strip has at least a base material layer (B) and a sealant layer (B), and the sealant layer (B) is a polymer constituting the surface layer (A) of the bag. It is a product exhibit that contains different types of polymers.
The present invention is described in detail below.

The bag used for the commodity display body of the present invention has a surface layer (A) made of a biaxially stretched film at least on the side on which the display strip is attached.
When the layer on the side of the bag attached to the display strip is a surface layer (A) made of a biaxially stretched film having high strength, the product display body of the present invention has a surface on the bag side when the bag is removed. Can be made difficult to be destroyed.

The biaxially stretched film is not particularly limited as long as it has high strength, and examples thereof include a biaxially stretched polypropylene film and a biaxially stretched polyethylene terephthalate film. Among them, a biaxially stretched polypropylene film is preferable. It is.

Although it does not specifically limit as thickness of the said surface layer (A), A preferable minimum is 10 micrometers and a preferable upper limit is 40 micrometers. If it is less than 10 μm, sufficient strength may not be obtained. If it exceeds 40 μm, the thickness of the entire bag may be unnecessarily thick.

As for the said surface layer (A), the heat sealable thin layer containing the same kind of polymer as the polymer which comprises the said surface layer (A) is formed in the outermost surface, or the embossing is performed. In the present specification, the “same polymer” refers to a polymer in which the monomer units constituting the polymer are composed of the same monomer units. For example, the homopolymer of polypropylene refers to a homopolymer or copolymer of these monomers in which the monomer unit constituting the polymer is formed from the same monomer unit, for example, an α-olefin monomer unit such as propylene, ethylene, butylene, The same kind of polyethylene terephthalate polymer refers to a polyester formed from the same kind of glycol or dicarboxylic acid.

The heat-sealable thin layer is a heat-sealable polymer layer and is not particularly limited as a polymer of the same type as the polymer constituting the surface layer (A) contained in such a heat-sealable thin layer, For example, when the polymer constituting the surface layer (A) is polypropylene, polypropylene, polyethylene, a copolymer of propylene and ethylene, a copolymer of propylene and / or ethylene and another olefin, or the like Is preferred.

When the heat-sealable thin layer is formed, the thickness of the heat-sealable thin layer is not particularly limited, but a preferable lower limit is 0.5 μm and a preferable upper limit is 5 μm. If the thickness is less than 0.5 μm, the effect of forming a heat-sealable thin layer may be hardly obtained. If the thickness exceeds 5 μm, the thickness of the entire bag may be increased more than necessary.

The embossing means that an embossed pattern is given to the surface of the surface layer (A), and such embossing is applied to the surface of the surface layer (A) on the side attached to the display strip. Thus, when the sealant layer (B) on the surface of the display strip described later is melted, high adhesion to the surface of the surface layer (A) is obtained, and heat sealing becomes possible.

The bag preferably further has a sealant layer (A).
The sealant layer (A) is not particularly limited as long as it is a heat-sealable polymer layer. For example, polyethylene (including polyethylene such as linear low-density polyethylene polymerized with a metallocene catalyst), polypropylene; propylene and ethylene , Copolymers with butene and the like; those composed of ethylene vinyl acetate copolymer, ethylene methacrylate ester copolymer and the like. Among these, an unstretched polypropylene film is preferable. The sealant layer (A) may be a single layer or may have a multilayer structure composed of a plurality of layers.

The bag preferably has an intermediate layer and / or a vapor deposition layer laminated between the surface layer (A) and the sealant layer (A). If an intermediate layer is laminated between the surface layer (A) and the sealant layer (A), the strength of the entire bag will be improved, and it will be able to sufficiently withstand the load applied when removing the product. is there.
Although it does not specifically limit as said intermediate | middle layer, For example, a polyethylene film is suitable.
Moreover, the said vapor deposition layer is a layer which ensures the function to the said bag, As such a vapor deposition layer, an aluminum vapor deposition layer etc. are mentioned, for example.

When the bag is formed by laminating a plurality of layers, it is necessary that the surface layer (A) and the inner layer are firmly bonded. If the adhesive strength between them is weak, when the bag is removed from the display strip, delamination occurs between the surface layer (A) of the bag and the inner layer. As a result, the outermost layer of the bag becomes a pseudo-single layer and easily breaks, and the printed surface is damaged and the appearance of the product deteriorates. In the worst case, it propagates to places other than the seal part. It peels off, and the bag for maintaining the quality of the product is scratched or punctured.
The surface layer (A) of the bag and the inner layer are preferably laminated by dry lamination. This is because the adhesive strength between the surface layer (A) and the inner layer becomes very strong, and it is excellent in heat resistance, chemical resistance, water resistance and the like.
Further, the dry laminate is not particularly limited, and may be either a solvent type or a solventless type, but a solventless type is preferable because a problem due to a residual solvent does not occur.

When the said surface layer (A) and the sealant layer (A) are laminated | stacked, it is preferable that these are laminated | stacked through the adhesive agent. Moreover, when the said intermediate | middle layer is laminated | stacked between the said surface layer (A) and the sealant layer (A), it is preferable that the said surface layer (A) and an intermediate | middle layer are laminated | stacked through an adhesive agent. . This is because the adhesive force between them can be strengthened, and the above-mentioned delamination does not occur.

Examples of the adhesive include conventional two-liquid solution type mainly composed of polyether / polyurethane, aromatic polyether, aromatic polyester, aliphatic polyester, aliphatic polyurethane, and aliphatic polyether. A known adhesive can be used. In addition, the adhesive includes a solvent such as an ethylene-acrylic acid copolymer, an ethylene-methyl methacrylate copolymer, an ethylene-methyl acrylate copolymer, an ethylene-ethyl acrylate copolymer, which is used in a thermal laminating method. A hot-melt type adhesive that does not use is also included. Furthermore, as an adhesive for laminating the base material layer (A) and the intermediate layer, for example, a conventionally known anchor coating agent such as a polyisocyanate / polyester two-component curable adhesive can also be used.

When the surface layer (A) and the sealant layer (A) are laminated via the adhesive, the peel strength is preferably 0.3 N / 15 mm or more. When it is less than 0.3 N / 15 mm, when the bag is removed from the display strip, delamination may occur between the surface layer (A) and the sealant layer (A) on the surface of the bag. As a result, the outermost layer of the bag becomes a pseudo-single layer and easily breaks, and the printed surface is damaged and the appearance of the product deteriorates. In the worst case, it propagates to places other than the seal part. It peels off, and the bag for maintaining the quality of the product is scratched or punctured. More preferably, it is 0.5 N / 15 mm or more.

The display strip has at least a base material layer (B) and a sealant layer (B). Of these, the sealant layer (B) forms the surface of the display strip that is to be bonded to the bag.
That is, in the product display body of the present invention, the surface layer (A) of the bag and the sealant layer (B) of the display strip are attached by heat sealing.

The sealant layer (B) contains a polymer different from the polymer constituting the surface layer (A) of the bag described above as a component that affects adhesiveness.
In the present specification, the “heterogeneous polymer” refers to a polymer composed of different monomer units formed from monomer units containing at least different monomers from the monomer units constituting the surface layer (A) of the bag. Or the copolymer polymer formed from a different monomer unit and the same kind monomer unit.
The sealant layer (B) may be formed from the different polymer or a blend of the different polymer and the same polymer.

The polymer constituting the surface layer (A) of the bag is not particularly limited as a polymer different from the polymer, but for example, an ethylene vinyl acetate copolymer is preferable.
Since the ethylene vinyl acetate copolymer is a resin excellent in heat sealability, the sealant layer (B) and the surface layer (A) of the bag enclosing the product can be bonded by heat sealing.
Moreover, since heat sealing is possible at a relatively low temperature of about 70 to 150 ° C., in addition to easily increasing the speed of the heat sealing step, even if the thickness of the base material layer (B) is increased. It can be sufficiently heat sealed. By increasing the thickness of the base material layer (B) constituting the display strip, the entire display strip can be strengthened, and also when a hole for hanging is made by a hole punch or the like The strength around the hole can be increased.

Further, since the ethylene vinyl acetate copolymer is a flexible elastomer, the sealant layer (B) is not broken and does not damage the bag side when peeling the bag bonded by heat sealing. .

When the sealant layer (B) of the display strip contains an ethylene vinyl acetate copolymer, the sealant layer (B) is relatively more fragile than the bag surface layer (A) described above, When the bag and the display strip are peeled off, the peeling occurs at the interface between the sealant layer (B) and the bag surface layer (A) so that the sealant layer (B) on the display strip side always extends and breaks. Therefore, the bag enclosing the product can be removed from the display strip without deteriorating the appearance.

Although it does not specifically limit as a vinyl acetate content in the said ethylene vinyl acetate copolymer, A preferable minimum is 8 weight% and a preferable upper limit is 42 weight%. If it is less than 8% by weight, the adhesiveness may be insufficient, and if it exceeds 42% by weight, the film formability may be inferior.

As the ethylene vinyl acetate copolymer, a saponified part of the vinyl acetate component can be used.
Moreover, as said ethylene vinyl acetate copolymer, a single thing may be used and 2 or more types from which vinyl acetate content etc. differ may be mixed and used.

Moreover, when the said sealant layer (B) contains the said ethylene vinyl acetate copolymer as a polymer different from the polymer which comprises the surface layer (A) of the said bag, it contains a tackifier further. Is preferred.
The tackifier is not particularly limited. For example, at least one selected from the group consisting of rosin resins, terpene resins, aliphatic hydrocarbon resins, alicyclic hydrocarbon resins, and aromatic hydrocarbon resins. A seed resin is preferably used.

The rosin resin is not particularly limited. For example, rosin, rosin derivative, rosin ester, gum rosin, wood rosin, tall oil rosin, distilled rosin, hydrogenated rosin, dimerized rosin, polymerized rosin, natural rosin glycerol ester, modified rosin Glycerol ester, natural rosin pentaerythritol ester, modified rosin pentaerythritol ester, light wood rosin glycerol ester, hydrogenated rosin glycerol ester, polymerized rosin glycerol ester, hydrogenated rosin pentaerythritol ester, phenolic modification of rosin Examples include pentaerythritol ester.

The terpene resin is not particularly limited, and examples thereof include terpenes, phenolic terpenes, modified terpenes, α-pinene polymers, β-pinene polymers, dipentene polymers, terpene-phenol copolymers, and the like.

The aliphatic hydrocarbon resin is not particularly limited, and examples thereof include polymers mainly composed of mono- or diolefins having 4 to 5 carbon atoms such as 1-butene, isobutylene, butadiene, and 1,3-pentadiene. Can be mentioned.

The alicyclic hydrocarbon resin is not particularly limited. For example, a resin obtained by polymerizing a cyclized and dimerized diene component in a spent C4-C5 fraction, a cyclic monomer such as cyclopentadiene is polymerized. Resin, hydrogenated dicyclopentadiene resin, hydrogenated petroleum resin and the like.

The aromatic hydrocarbon resin is not particularly limited, and examples thereof include vinyltoluene, indene, styrene polymer, α-methylstyrene copolymer, and the like.

Moreover, as said tackifier, commercially available things, such as what was described in USP6117945, can also be used, for example.

When the tackifier is contained, the blending ratio of the ethylene-vinyl acetate copolymer and the tackifier in the sealant layer (B) is 70 to 95% by weight of the ethylene-vinyl acetate copolymer, The tackifier is preferably 5 to 30% by weight. When the content of the tackifier is less than 5% by weight, the adhesiveness at the time of melting of the sealant layer (B) may be insufficient, and when it exceeds 30% by weight, the moldability is insufficient. May be.

Further, the polymer different from the polymer constituting the surface layer (A) of the bag is preferably a polymer having cohesive failure, for example.
In the present specification, the polymer having cohesive failure refers to a component that contributes to the easy peel property of the sealant layer (B), and the easy peel property refers to a bag attached by heat sealing. Is capable of being peeled off easily and without damage using a human hand.

The polymer having the cohesive fracture property is not particularly limited as long as it is a polymer that can impart an easy peel property to the sealant layer (B) that is easier to break than the surface layer (A) of the mating bag. Examples thereof include polymers and polybutene-1.

In the present specification, the styrene polymer means a resin having a styrene monomer such as styrene, α-methylstyrene, chlorostyrene or the like as a structural unit. More specifically, a homopolymer of a styrene monomer and a copolymer of a styrene monomer and another monomer are included. Here, the copolymer includes a graft copolymer and a block copolymer. As said other monomer, C2-C12 alpha olefins, such as acrylonitrile, (meth) acrylic acid, (meth) acrylic ester, ethylene, propylene, butylene; Conjugation of C4-C15, such as butadiene and isoprene Examples include diene monomers.

Examples of the styrene polymer include styrene-butylene copolymer, styrene-butylene-styrene block copolymer, styrene-isoprene copolymer, styrene-isoprene-styrene block copolymer, styrene-butadiene copolymer, Examples thereof include styrene-based elastomers such as styrene-butadiene-olefin block copolymers. These styrenic polymers and polybutene-1 may be used alone or in combination of two or more.

Moreover, when the said sealant layer (B) contains the polymer which has the said cohesive failure as a polymer different from the polymer which comprises the surface layer (A) of the said bag, it is preferable to contain an adhesive component further. .
The adhesive component is not particularly limited as long as it can impart heat sealability to the surface layer (A) of the bag on the sealant layer (B), but most of the bags currently used in Europe and the United States have a sealant layer on the surface. In view of the fact that heat-sealable biaxially stretched polypropylene (OPH) is employed as a copolymer, polypropylene, a copolymer of propylene such as propylene-ethylene-butene terpolymer and other olefins, and a single site catalyst At least one selected from the group consisting of low-density polyethylene such as a linear polyethylene is preferably used. Among these, those containing polypropylene or a copolymer of propylene and another olefin as a main component and further blended with low density polyethylene for lowering the melting point are more preferable. Here, examples of the other olefin include α-olefins having 2 to 12 carbon atoms (excluding 3 carbon atoms), such as ethylene, 1-butene, 3-methyl-1-butene, and 3-methyl-1-pentene. 4-methyl-1-pentene, 4-dimethyl-1-pentene, vinylcyclopentene, vinylcyclohexane and the like. As the copolymer of propylene and other olefins, a binary copolymer or ternary copolymer of propylene and these monomers is preferably used.

When the polymer having the cohesive fracture property is contained as a polymer different from the polymer constituting the surface layer (A) of the bag, the sealant layer (B) of the display strip may be a single layer. It may be composed of a plurality of layers.
In the case where the sealant layer (B) is composed of a single layer, the content of the adhesive component and the polymer having cohesive failure is not particularly limited, and according to the surface layer (A) of the other bag. It is selected appropriately. In general, the greater the content of the adhesive component, the higher the heat sealability, and the greater the content of the polymer having cohesive failure, the more likely the cohesive failure occurs. Moreover, you may mix | blend so that content of the adhesive component of the side sealed with the bag of the said sealant layer (B) may become large.

When the sealant layer (B) is composed of a plurality of layers, the polymer contains the cohesive fracture property, and an adhesive layer that adheres to the surface layer (A) of the bag by heat sealing, and supports the adhesive layer, It is preferable to consist of a support layer that binds the base material layer (B) and the adhesive layer. In this case, the adhesive layer may be further composed of a plurality of layers, and the content of the polymer having cohesive failure of the layer on the side in contact with the surface layer (A) of the bag is increased, and as it becomes the support layer side. The content of the polymer having cohesive failure may be reduced.

The support layer includes polypropylene, polyethylene, a component of the adhesive layer, such as a copolymer of ethylene or propylene and another α-olefin, or a component similar to the component, and more than the adhesive layer. A composition having a slightly higher melting point is preferable for supporting the adhesive layer while ensuring adhesion with the adhesive layer.

As for the thickness of the adhesive layer, a preferred lower limit is 1 μm and a preferred upper limit is 30 μm. If it is less than 1 μm, sufficient sealing strength may not be obtained, and if it exceeds 30 μm, it may take time to perform heat sealing.
Moreover, as a thickness of the said support layer, a preferable minimum is 5 micrometers and a preferable upper limit is 50 micrometers. If it is less than 5 μm, the function as the above-mentioned support layer may not be sufficiently achieved, and if it exceeds 50 μm, it may take time to perform heat sealing.

In the product display body of the present invention, the sealant layer (B) is preferably composed of a blend of the same kind of polymer and the different kind of polymer that constitute the surface layer (A) of the bag. When the bag is removed, the sealant layer (B) of the display strip is broken or the sealant layer (B) and the surface layer of the bag. Since peeling occurs at the interface with (A), the appearance of the bag is not impaired.

Further, the sealant layer (B) of the display strip may contain a wax for the purpose of improving processability and adjusting the adhesive strength. The wax is not particularly limited, for example, olefin wax, paraffin wax, aliphatic ester wax, deoxidized carnauba wax, saturated aliphatic acid wax, unsaturated aliphatic acid wax, saturated alcohol wax, Examples thereof include aliphatic alcohol waxes, polyhydric alcohol waxes, saturated fatty acid amide waxes, saturated fatty acid bisamide waxes, unsaturated acid amide waxes, and aromatic bisamide waxes.

The sealant layer (B) may further contain commonly used additives such as an ultraviolet ray inhibitor, an antioxidant, a plasticizer, a lubricant, a pigment, and a dye as necessary.

The sealant layer (B) is preferably transparent. In the case where the sealant layer (B) is transparent, even if the remaining pieces of the sealant layer (B) adhere to the bag containing the product after the bag is peeled off, the appearance is not impaired.

The sealant layer (B) may be formed on substantially the entire surface of the display strip, may be formed in a striped pattern, or may be formed only at a predetermined position where the bag is attached. Good. When formed on substantially the entire surface of the display strip, it is preferable that the bag can be attached to any position of the display strip. Here, “substantially” means that a position where a drilling process has been performed or a peripheral portion where a product is not attached is not included.

The base material layer (B) of the display strip is not particularly limited, but has sufficient strength from the application of attaching and hanging a large number of bags, and has heat resistance that does not melt or deteriorate during heat sealing. For example, biaxially stretched polypropylene (OPP), biaxially stretched polyethylene terephthalate, metal foil, paper, or a laminate thereof is preferable.

Although it does not specifically limit as thickness of the said base material layer (B), A preferable minimum is 30 micrometers and a preferable upper limit is 200 micrometers. If it is less than 30 μm, sufficient strength may not be obtained, and there is a risk of breakage when removing a bag enclosing the product or when the product is enclosed. If it exceeds 200 μm, the base material layer (B) serves as a heat insulating material. In heat sealing, heat may not be sufficiently transferred to the sealant layer (B) of the display strip. As described above, when an ethylene-vinyl acetate copolymer is contained in the sealant layer (B) of the display strip, the base material is used in a range that does not impair the heat sealability because of excellent low temperature heat sealability. If the thickness of the layer (B) is increased, the waist of the entire display strip can be strengthened, and the strength around the hole can be increased even when a hole for hanging is made by a hole punch or the like. Can do.

The base material layer (B) and sealant layer (B) of the display strip may be laminated via an adhesive by a known dry laminating method, or by a thermal laminating method without using a solvent or an adhesive. May be.

The display strip preferably further has a polyethylene layer between the base material layer (B) and the sealant layer (B). Since polyethylene is flexible and has high tensile elongation, having the polyethylene layer improves the overall strength of the display strip, and if a punching process (hole punch) is performed to suspend the display strip, When it is removed, it can withstand the load applied to that part. Moreover, the said polyethylene layer also plays the role which bonds a base material layer (B) and a sealant layer (B). Lamination of the polyethylene layer can be performed by laminating polyethylene between the base material layer (B) and the sealant layer (B) while extrusion molding. In addition to polyethylene, an ionomer of ethylene- (meth) acrylic acid copolymer or ethylene- (meth) acrylic acid copolymer may be used.

Although it does not specifically limit as thickness of the said polyethylene layer, A preferable minimum is 5 micrometers and a preferable upper limit is 50 micrometers. If the thickness is less than 5 μm, a sufficient strength improvement effect may not be obtained. If the thickness exceeds 50 μm, the thickness of the entire display strip becomes thick, and the heat sealability may be impaired due to the heat insulating effect. .

The display strip may further include a layer that ensures other functions between the base material layer (B) and the sealant layer (B). Examples of such a layer include a printing layer. In particular, when a polymer is used as the base material layer (B), the printing layer is preferably provided between the base material layer (B) and the sealant layer (B), and paper is used as the base material layer (B). When used, it is preferable to print on the non-laminated surface of the paper.

The form of the display strip is not particularly limited, and examples thereof include a tape form and a sheet form. In addition, one end of the display strip may be subjected to a drilling process to be hooked on a hook in order to hang and display a display strip with a product attached thereto, or a clip or the like may be attached. In particular, drilling is preferable because it can be easily performed in a series of automated processes. However, when a hole is formed in the display strip and hooked on the hook, the hole portion is subject to force and is easily broken, so that the base layer (B) is strengthened or the base layer (B) and the sealant are It is preferable to use a layer having a polyethylene layer or a nylon layer between the layer (B).

A method for manufacturing the product display body of the present invention by attaching a bag enclosing a product to the display strip is not particularly limited. For example, it is preferable to attach the product by the procedure shown in FIG.
In this method, first, the bag 2 containing the product is placed so that the front side of the bag 2 is in contact with the display strip 1, and then the upper portion of the bag 2 is heat-sealed to bond the bag 2 to the display strip 1 (FIG. 2). (A)).
When the bag 2 enclosing a predetermined number of products is joined to the display strip 1, the bag 2 enclosing each product is turned upside down around the seal portion 7 so that the surface of the bag 2 is opposite to the display strip 1. (FIG. 2B).
In this state, if one end of the display strip 1 is hung on a hook or the like, the seal portion 7 between the bag 2 and the display strip 1 is as shown in FIG. By pulling downward, it can be easily removed from the display strip with a small force.

In the product display body of the present invention, it is preferable that the surface layer (A) of the bag is heat-sealed to the sealant layer (B) of the display strip with a seal strength of 5 N / 30 mm or more. If it is less than 5 N / 30 mm, the product may fall due to its own weight depending on the weight of the product. The upper limit of the sealing strength of the surface layer (A) of the bag to the sealant layer (B) of the display strip is preferably 50 N / 30 mm. If it exceeds 50 N / 30 mm, it may not come off even if the bag enclosing the product is pulled in a suspended state. A more preferable upper limit is 30 N / 30 mm.

Further, in the product display body of the present invention, when the bag is removed from the display strip, the surface layer (A) of the bag and the sealant layer (B) of the display strip are peeled off or the display The inside of the sealant layer (B) of the strip is agglomerated and broken, and the bag is removed from the display strip. Therefore, the appearance of the bag in which the product is enclosed is not impaired.

Note that the sealing state and peeling state between the bag and the display strip can vary greatly depending on the sealing conditions. The sealing conditions change depending on the temperature at the time of sealing, the contact time of the seal jaw, the contact pressure, and the like, and may also change depending on the shape of the seal jaw. As the shape of the sealing jaw, for example, the shape shown in FIG. 3 can be used. Therefore, it is preferable to select the optimum sealing conditions according to the resin composition forming the sealant layer (B) of the display strip and the material of the surface layer (A) of the bag. 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, and this length is from the beginning of peeling when peeling the bag from the display strip to the completion of peeling. Determining the distance substantially.

In the product display body of the present invention, a bag enclosing a product can be fixed to the display strip by heat sealing, and a large number of products can be easily attached by automation. Furthermore, when removing the bag enclosing the product from the display strip, the strength of the outermost layer of the bag is high and delamination is unlikely to occur, but the sealant layer (B) on the display strip side tends to break, The sealant layer (B) of the display strip does not cause cohesive failure, or peeling occurs at the interface between the sealant layer (B) of the display strip and the surface layer (A) of the bag, and the appearance of the bag is not impaired.

According to the present invention, a bag in which a product is enclosed is a product display body attached to a display strip, and when the bag in which the product is enclosed is removed, it can be easily removed without damaging the appearance of the bag. A product exhibit that can be provided.

Hereinafter, the present invention will be described in more detail with reference to examples. However, the present invention is not limited to these examples.

Example 1
(1) Fabrication of bag A 20 μm-thick biaxially stretched polypropylene film (OPP) (FOH, manufactured by Nimura Chemical Co., Ltd.) having a polypropylene-containing heat-sealable thin layer (1.7 μm thick) formed on one surface. Used as the surface layer (A), printing is performed on the other surface of the surface layer (A), and an aluminum-deposited unstretched polypropylene film (WA-L, 25 μm thick) is used as the sealant layer (A). The printed surface of the surface layer (A) and the vapor-deposited surface of the sealant layer (A) are made of non-sol bond (manufactured by Dainichi Seika Kogyo Co., Ltd., main component XC-231 and curing agent XA-126 at 10: 4). A laminate was obtained by laminating at a coating amount of 1 g / m ² using a dry lamination method.
The obtained laminate was formed into a cylindrical shape so that the unstretched polypropylene film surface was inside, and the opposite ends of the unstretched polypropylene film were heat-sealed to form a bag.

(2) Production of display strip A biaxially stretched polyethylene terephthalate (PET) film having a thickness of 50 μm is used as a base layer (B), and a thickness containing an ethylene-vinyl acetate resin and a tackifier as a sealant layer (B). Using a 50 μm film (Mersen MX09, manufactured by Tosoh Corporation), low-density polyethylene (LDPE) is melt-extruded between the base material layer (B) and the sealant layer (B) so as to be a layer having a thickness of 30 μm. Then, the base material layer (B) and the sealant layer (B) were laminated to obtain a sheet having a three-layer structure of PET (50 μm) / LDPE (30 μm) / MX09 (50 μm). The obtained sheet was cut into a width of 35 mm to produce a display strip.

(3) Manufacture of product display body The obtained bag and display strip were attached by heat sealing according to the procedure shown in FIG.
The heat sealing conditions were 130 ° C. and 200 ms.

(Example 2)
As a sheet used for a display strip, a biaxially stretched polyethylene terephthalate (PET) film having a thickness of 50 μm is used as a base material layer (B), and an ethylene-vinyl acetate resin (vinyl acetate content 19% by weight) 80 weight as a sealant layer (B). % And a alicyclic hydrogenated petroleum resin (softening point 125 ° C .: bromine number 2) with a thickness of 50 μm and a low density polyethylene (LDPE) layer of 30 μm. While extruding, laminating the base material layer (B) and the sealant layer (B) and using a three-layer structure of PET (50 μm) / LDPE (30 μm) / sealant layer (B) (50 μm) Manufactured the commodity display in the same manner as in Example 1.

(Example 3)
As a sheet used for a display strip, a 75 μm thick biaxially stretched polyethylene terephthalate (PET) film is used as a base material layer (B), and a sealant layer (B) containing ethylene-vinyl acetate and a tackifier is added to polyethylene. A 30 μm thick laminated film (Mersen MX302, manufactured by Tosoh Corporation) is laminated to the base material layer (B) using a dry laminate adhesive, and a PET (75 μm) / polyethylene sealant layer (B) (30 μm The product display was manufactured in the same manner as in Example 1 except that the one having a two-layer structure was used.

(Comparative Example 1)
As a sheet to be used for a display strip, a paper having a thickness of 70 g / m ² in basis weight is used as a base material layer, and a heat-sealable biaxially oriented polypropylene film (OPH) having a thickness of 50 μm is laminated thereon via an adhesive. A product display body was manufactured in the same manner as in Example 1 except that a sheet having a two-layer structure of paper (35 μm) / sealant layer (50 μm) was used.
In Comparative Example 1, since the conditions when heat-sealing the bag and the display strip were the same as those in Example 1, they were not bonded, and heat sealing was performed at 190 ° C. and 200 ms.

Example 4
As a sheet used for a display strip, a film having a cohesive fracture type easy peel property having a thickness of 60 μm (made by Showa Denko Plastic Products Co., Ltd.) on a biaxially stretched polyethylene terephthalate film (base layer (B)) having a thickness of 38 μm. A product display body was manufactured in the same manner as in Example 1 except that a laminated body obtained by laminating Showrex aroma film TPF1) (sealant layer (B)) using a usual dry laminating method was used.
However, the conditions for heat-sealing the bag and the display strip were 190 ° C. and 350 ms.

(Comparative Example 2)
As a sheet used for a display strip, a paper having a thickness of 70 g / m ² in basis weight is used as a base material layer, and a heat-sealable biaxially stretched polypropylene film (OPH) is laminated thereon via an adhesive. A product display body was manufactured in the same manner as in Example 4 except that the laminated body was used.

(Example 5)
As a sheet used for a display strip, a film having a cohesive fracture type easy peel property with a thickness of 35 μm (made by Showa Denko Plastic Products Co., Ltd.) on a biaxially stretched polyethylene terephthalate film (base layer (B)) with a thickness of 50 μm. A product display body was produced in the same manner as in Example 4 except that a laminate obtained by laminating Showrex aroma film TP9) (sealant layer (B)) using a normal dry lamination method was used.
However, the bag and the display strip were sealed under the conditions of a seal temperature of 190 ° C., a seal time of 0.5 sec, and a seal pressure of 0.4 MPa using a thermal inclination tester (manufactured by Toyo Seiki Seisakusho, HEATGRADENT).

(Example 6)
As a sheet used for a display strip, a film having a cohesive fracture type easy peel property (showa made by Showa Denko Plastic Products Co., Ltd.) on a biaxially stretched polyethylene terephthalate (PET) film (base layer (B)) having a thickness of 50 μm. Rex aroma film TPF1) (sealant layer (B)) and low density polyethylene (LDPE) film normally used for extrusion sand lamination are extruded to form a laminate film of PET (50 μm) / LDPE (30 μm) / TPF1 (40 μm). A product display was produced in the same manner as in Example 5 except that it was used.

(Comparative Example 3)
The sheet used for the display strip was the same as in Example 5 except that a sheet of coated paper having a weight of 90 g / m ² was dry-laminated with sealable unstretched polypropylene (trade name “FCMN”, manufactured by Nimura Chemical Co., Ltd.). A product exhibit was manufactured.

(Comparative Example 4)
As a sheet used for the display strip, a biaxially stretched polypropylene film having a thickness of 50 μm is used as a base layer, and a low-density polyethylene layer having a thickness of 30 μm and a general-purpose unstretched polypropylene film having a thickness of 30 μm as a sealant layer (Toyobo) A product display was manufactured in the same manner as in Example 5 except that a product made by the company, product name “P1128”) was used in this order.

The bag is peeled from the product exhibit manufactured in Examples 1 to 6 and Comparative Examples 1 to 4 at a tensile speed of 300 mm / min using a tensile tester (manufactured by Toyo Seiki Seisakusho, Strograph V1-C). did. The test was performed 10 times, and the surface of the removed bag was visually observed to check for the presence of delamination.
The results are shown in Table 1.

As shown in Table 1, the product exhibits manufactured in Examples 1 to 3 have higher sealing strength between the bag and the display strip than the product exhibit manufactured in Comparative Example 1, and damage the bags. And could be peeled off from the display strip.
Moreover, the product display body manufactured in Example 4 has a higher sealing strength between the bag and the display strip than the product display body manufactured in Comparative Example 2, and is peeled off from the display strip without damaging the bag. I was able to.
Furthermore, the product display body manufactured in Examples 5 and 6 has a higher sealing strength between the bag and the display strip than the product display body manufactured in Comparative Examples 3 and 4, and the display strip is not damaged. Could be peeled off.

According to the present invention, a product display body in which a bag enclosing a product is attached to a display strip, and when removing the bag enclosing the product, can be easily removed without damaging the appearance of the bag. A product exhibit that can be provided.

It is a schematic diagram which shows strip bag display. It is a schematic diagram which shows an example of the procedure of attaching the bag which enclosed the goods to the display strip. It is a schematic diagram which shows an example of the form of a seal jaw.

Explanation of symbols

1 Display strip 2 Bag containing product 3 Sealing area

Claims (13)

A product display body in which a bag enclosing the product and a display strip are attached by heat sealing,
The bag has a surface layer (A) made of a biaxially stretched film at least on the side attached to the display strip, and the surface layer (A) is the same type as the polymer constituting the surface layer (A) on the outermost surface. A heat-sealable thin layer containing the polymer of is formed or embossed,
The display strip has at least a base material layer (B) and a sealant layer (B), and the sealant layer (B) contains a polymer different from the polymer constituting the surface layer (A) of the bag. A product exhibit characterized by The product display body according to claim 1, wherein the biaxially stretched film constituting the surface layer (A) of the bag is a biaxially stretched polypropylene film. Polymers of the same type as the polymer constituting the surface layer (A) contained in the heat-sealable thin layer formed on the outermost surface of the surface layer (A) of the bag are polypropylene, polyethylene, and a copolymer of propylene and ethylene. 3. A product exhibit according to claim 1 or 2, which is a copolymer of propylene and / or ethylene and another olefin. The product display body according to claim 1, wherein the bag further has a sealant layer (A). The product display body according to claim 4, wherein the sealant layer (A) is unstretched polypropylene. The product display body according to claim 4 or 5, wherein an intermediate layer and / or a vapor deposition layer is laminated between the surface layer (A) and the sealant layer (A). The product display body according to claim 6, wherein the intermediate layer is a polyethylene film. The product display body according to claim 1, 2, 3, 4, 5, 6 or 7, wherein the bag is formed by laminating a surface layer (A) and an inner layer thereof by dry lamination. The polymer different from the polymer constituting the surface layer (A) of the bag contained in the sealant layer (B) of the display strip is an ethylene vinyl acetate copolymer. The product display object according to 4, 5, 6, 7 or 8. The polymer different from the polymer constituting the surface layer (A) of the bag contained in the sealant layer (B) of the display strip is a polymer having a cohesive fracture property. The product display object according to 4, 5, 6, 7 or 8. The sealant layer (B) of the display strip is made of a mixed resin of the same kind of polymer and the different kind of polymer constituting the surface layer (A) of the bag. 5, 6, 7, 8, 9 or 10 commodity exhibit. The surface layer (A) of the bag is heat-sealed to the sealant layer (B) of the display strip with a seal strength of 5 N / 30 mm or more. , 7, 8, 9, 10 or 11. The interface between the surface layer (A) of the bag and the sealant layer (B) of the display strip is peeled off or the inside of the sealant layer (B) of the display strip is agglomerated and broken, so that the bag is detached from the display strip. 13. A product exhibit according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 or 12.

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