JP2007210684A - Display strip and commodity display object using it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display strip facilitating automation of the process of attaching a bag seal enclosing a commodity, and allowing a bag enclosing once taken-out commodity to be easily re-bonded. <P>SOLUTION: The display strip for attaching and displaying a plurality of bags enclosing the commodities and arranged comprises at least a base layer and a sealant layer, wherein the sealant layer contains a heat-activated adhesive agent to bond to the surface layer of the bag by heat compression while the sealant layer is non-adhesive before heat compression, but becomes re-bonding to the bag by peeling the bag bonded by heat compression to expose the adhesive surface. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a display strip for arranging and displaying a plurality of bags enclosing products, and a product display body having the bags attached thereto.

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 an display form in which a plurality of products are attached to a tape material of a predetermined width called a display strip and suspended 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 the display strip, for example, the adhesive strength of the adhesive tape, such as an adhesive tape or an adhesive tape that has been punched in advance at a predetermined position of a tape made of paper or resin, and the adhesive tape is pasted from the back surface. According to the above, a bag for attaching a product to a display strip was used. This type of display strip has the advantage that it can be re-bonded after the product once attached is removed.

As a display strip of a type in which a bag enclosing a product is attached by the adhesive force of an adhesive tape, for example, a display mount described in Patent Document 1 can be cited.
Microfilm of Japanese Utility Model No. Sho 63-113360 (Japanese Utility Model Laid-Open No. 2-34467)

  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. That is, even if such a display strip is to be automated while the adhesive tape is exposed, the tape cannot be fed freely because it sticks to a roller or the like when passing through the machine. On the other hand, even when the adhesive surface is covered with a release sheet or the like, it is difficult to automate the product because the operation for attaching the product is complicated. In addition, there is a problem in that dust and dirt may adhere to the surface of the adhesive tape and the appearance may be impaired.

  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. However, in such a heat-seal type display strip, it is necessary to use a sealer or the like in order to re-adhere the product once removed, and it is difficult to do this at a store or the like.

  An object of the present invention is to provide a display strip which can easily automate the process of attaching a bag enclosing a product and can easily re-adhere the bag enclosing the product once removed. To do.

  The present invention is a display strip for arranging and displaying a plurality of bags enclosing a product, wherein the display strip comprises at least a base material layer and a sealant layer, and the sealant layer includes: It can be bonded to the surface layer of the bag by thermocompression bonding, and does not exhibit adhesiveness before thermocompression bonding, but the adhesive surface is exposed when the bag bonded by thermocompression bonding is peeled off. A display strip capable of recombining the bags.

  The sealant layer preferably contains a heat-active pressure-sensitive adhesive, and has a layer structure composed of two or more layers, and at least the outermost layer contains a heat-active pressure-sensitive adhesive layer. More preferably, the inner layer of the thermally activated pressure-sensitive adhesive layer is a pressure-sensitive adhesive layer exhibiting adhesiveness at room temperature. Moreover, it is preferable that a heat activation type adhesive contains a thermoplastic resin with a secondary transition point of −10 to 70 ° C. and a solid plasticizer with a melting point of 70 to 120 ° C. It is preferable to contain.

  The base material layer is preferably made of biaxially stretched polypropylene, biaxially stretched polyethylene terephthalate, metal, paper, or a laminate thereof.

  The bag preferably includes at least a sealant layer and a base material layer. The sealant layer is preferably made of at least one selected from the group consisting of polypropylene, a copolymer of propylene and other olefins, and low-density polyethylene, and the sealant layer is made of heat-sealable two. It is preferably made of an axially stretched polypropylene film. The sealant layer and the base material layer are preferably laminated with an adhesive. The sealant layer and the base material layer are preferably laminated via an intermediate layer, and the sealant layer and the intermediate layer are more preferably laminated via an adhesive.

  A merchandise display body in which the display strip of the present invention and a bag enclosing a merchandise are bonded by heat sealing is also one aspect of the present invention.

  If the display strip of this invention is used, the bag which enclosed the goods can be fixed easily by thermocompression bonding, and a lot of goods can be easily attached by automation. Furthermore, even when the bag enclosing the product is removed from the display strip, the bag can be reattached to the display strip.

The present invention is described in detail below.
The display strip of the present invention comprises at least a base material layer and a sealant layer, and the sealant layer and the surface of the bag enclosing the product can be bonded by thermocompression bonding.

Furthermore, in the display strip of the present invention, the sealant layer does not exhibit adhesiveness before being bonded by thermocompression bonding and can be easily used for an automated machine. However, when a bag bonded by thermocompression bonding is peeled off. Can re-bond the bag with the adhesive side exposed.
Such a display strip is not particularly limited, and examples thereof include those having a sealant layer containing a heat-active adhesive.

The display strip of the present invention has a sealant layer containing a thermally activated adhesive. In the present specification, the heat-activatable pressure-sensitive adhesive is an adhesive that does not exhibit tackiness before heating, but develops tackiness by heating, and the once-developed tackiness persists after returning to room temperature. Means. Such an adhesive is also called a delayed tack adhesive. As the delayed tack adhesive, those described in Patent Document 2 can be used.
US Pat. No. 4,091,162

  Although it does not specifically limit as said thermally activated adhesive, For example, what contains the thermoplastic resin whose secondary transition point is -10-70 degreeC and solid plasticizer whose melting | fusing point is 70-120 degreeC is used suitably. It is done. Such a type of heat-activatable pressure-sensitive adhesive exhibits adhesiveness when a solid plasticizer melted by heating plasticizes the thermoplastic resin. The thermoplastic resin having a secondary transition point of −10 to 70 ° C. is not particularly limited. For example, an acrylic polymer such as an acrylic ester-methacrylic ester copolymer, a vinyl acetate polymer, a synthetic rubber, Examples include natural rubber. Examples of the acrylic polymer include a copolymer of an alkyl acrylate having an alkyl group having 2 to 10 carbon atoms and an alkyl methacrylate having an alkyl group having 1 to 4 carbon atoms. Can be mentioned.

The solid plasticizer having a melting point of 70 to 120 ° C. is not particularly limited, and examples thereof include dicyclohexyl phthalate, bis (cis-3,3,5-trimethylcyclohexyl) phthalate, and resorcinol bis [di (2,6-dimethylphenyl) phosphate. ] Etc. are mentioned.
The thermally active pressure-sensitive adhesive containing the thermoplastic resin and the solid plasticizer preferably further contains a tackifier. By containing a tackifier, the tackiness developed by heating can be increased.
The tackifier is not particularly limited, and examples thereof include terpene resins, aliphatic petroleum resins, coumarone-indene resins, and the like.
In addition to the thermally active pressure-sensitive adhesive containing the thermoplastic resin and the solid plasticizer, the heat-active pressure-sensitive adhesive is, for example, in the presence of a copolymer composed of methyl methacrylate, styrene, and acrylic acid. In addition, a thermally activated pressure-sensitive adhesive obtained by polymerizing a monomer mixture composed of butyl acrylate, 2-ethylhexyl acrylate, acrylonitrile, N-methylolacrylamide, and the like can also be used.

Examples of commercially available thermal active adhesives include `` Aron Tuck '' manufactured by Toa Gosei Co., Ltd., `` Eco Brid '' manufactured by Daicel Chemical Industries, `` Heat Magic '' manufactured by Toyo Ink Co., Ltd. Selected from these products.
In the display strip according to the first aspect of the present invention, the sealant layer may be only one layer containing a heat-activatable pressure-sensitive adhesive. In this case, when the bag is peeled from the display strip to which the bag is attached, the bag can be re-bonded to the adhesive remaining on the display strip without shifting to the bag side.

When the sealant layer has a layer structure composed of two or more layers, at least the outermost layer is a heat-active pressure-sensitive adhesive layer containing the above-mentioned heat-active pressure-sensitive adhesive, and the inner layer of the heat-active pressure-sensitive adhesive layer Is preferably an adhesive layer exhibiting adhesiveness at room temperature. By having such a structure, the adhesive force of the inner pressure-sensitive adhesive layer is added to the adhesiveness of the heat-activatable pressure-sensitive adhesive expressed by heating, so even if the weight of the product enclosed in the bag is heavy It can be held securely.
The pressure-sensitive adhesive that constitutes the pressure-sensitive adhesive layer exhibiting adhesiveness at room temperature is not particularly limited. For example, a rubber-based pressure-sensitive adhesive containing natural rubber, synthetic rubber or the like; a solvent type containing an acrylate ester, an emulsion type, Examples thereof include an acrylic pressure-sensitive adhesive such as a hot melt type. Examples of the rubber-based pressure-sensitive adhesive include polyisobutylene-based pressure-sensitive adhesives, butyl rubber-based pressure-sensitive adhesives, and block copolymer-based pressure-sensitive adhesives.

  In the display strip of the present invention, when the sealant layer contains the thermoactive adhesive, the adhesive of the thermoactive adhesive is expressed by thermocompression bonding with the bag in which the product is sealed, and the bag is bonded. be able to. Since the sealant layer does not exhibit adhesiveness before heating, the process of thermocompression bonding the bag can be easily automated. Further, once the tackiness has been developed, it persists even after the temperature is returned to room temperature, so that it can be re-adhered even if the bonded bag is removed.

  In the display strip of the present invention, the sealant layer may be formed on substantially the entire surface of the display strip, or may be formed only at a predetermined position where a product is attached. In the case where it is formed on substantially the entire surface of the display strip, it is preferable that the commodity 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 is not particularly limited, but preferably has sufficient strength from the use of attaching and hanging a large number of products, and has heat resistance that does not melt or deteriorate during thermocompression bonding, for example, A biaxially stretched polypropylene (OPP), a biaxially stretched polyethylene terephthalate, a metal foil, paper or a laminate thereof, or a paper coated with a resin component is suitable.

  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 when removing a bag enclosing the product, and if it exceeds 200 μm, the base material layer serves as a heat insulating material and is thermocompression bonded. Sometimes heat is not sufficiently transferred to the sealant layer.

  The display strip of the present invention may further include a layer that ensures other functions between the base material layer and the sealant layer. Examples of such a layer include a printing layer. In particular, when a polymer is used as the base material layer, the printing layer is preferably provided between the base material layer and the sealant layer. When paper is used as the base material layer, the paper is not laminated. It is preferable to print on the surface.

  The form of the display strip of the present invention is not particularly limited, and examples thereof include a tape form and a sheet form. In addition, one end of the display strip according to the present invention may be subjected to a punching process for hanging 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 easily broken due to force, so that the base layer is strengthened or polyethylene is interposed between the base layer and the sealant layer. You may use what has a layer and a nylon layer.

  As a bag for enclosing a product to be attached to the display strip of the present invention, any commonly used bag can be used, and among them, a bag composed of at least a sealant layer and a base material layer is preferable. The sealant layer on the surface of the bag is preferably made of at least one selected from the group consisting of polypropylene, copolymers of propylene and other olefins, low-density polyethylene and ethylene-vinyl acetate copolymers. . The sealant layer on the surface of the bag is preferably made of a heat sealable biaxially oriented polypropylene (OPH) film. A heat-sealable biaxially stretched polypropylene (OPH) film is usually a very thin film made of a resin having heat sealing properties such as propylene-ethylene-butene terpolymer on the surface of biaxially stretched polypropylene (OPP). It means a material that has been provided with a heat seal property by providing a polymer layer, and in particular in Europe and the United States, it is often used as a bag material.

  It is preferable that the sealant layer and the base material layer constituting the bag enclosing the product are laminated via an adhesive. Since a high interlayer adhesion can be obtained by laminating via an adhesive, there is no breakage between the layers of the bag when the bag is removed from the display strip of the present invention, and the interface between the display strip and the bag or inside the display strip It is easy for destruction to occur.

  Further, the sealant layer and the base material layer constituting the bag for enclosing the product may be laminated via an intermediate layer. In this case, the sealant layer and the intermediate layer are preferably laminated through an adhesive. Since a high interlayer adhesion is obtained by laminating the sealant layer and the intermediate layer through an adhesive, there is no breakage between the bag layers when the bag is removed from the display strip of the present invention, Breakage easily occurs at the interface with the bag or inside the display strip.

  For bags enclosing such products, heat-sealable polymer may be coextruded with the polymer that forms the base layer, or a heat-sealable polymer such as hot melt adhesive may be coated on the base layer. Can be manufactured. As a bag for enclosing a product to be attached to the display strip of the present invention, for example, biaxially oriented polypropylene (OPP) layer / printing layer / adhesive layer / polyethylene (PE) layer / aluminum-deposited polyethylene terephthalate (PET) layer / polyethylene ( PE) layer / unstretched polypropylene (CPP) layer; biaxially stretched polypropylene (OPP) layer / printing layer / polyethylene (PE) layer / aluminum-deposited polyethylene terephthalate (PET) layer / polyethylene (PE) layer / unstretched Consisting of polypropylene (CPP) layer; biaxially oriented polypropylene (OPP) layer / printing layer / aluminum-deposited unstretched polypropylene (CPP) layer; biaxially oriented polypropylene (OPP) layer / printing layer / polyethylene (PE) Layer / No aluminum deposition Consisting of stretched polypropylene (CPP) layer; Transparent vapor-deposited biaxially oriented polyethylene terephthalate (PET) layer / printing layer / unstretched polypropylene (CPP) layer; Heat-sealable biaxially oriented polypropylene (OPH) layer / printing layer / Polyethylene (PE) layer / aluminum-deposited heat-sealable biaxially oriented polypropylene (OPH) layer; heat-sealable biaxially-oriented polypropylene (OPH) layer / printing layer / polyethylene (PE) layer / aluminum-deposited unstretched polypropylene (CPP) What consists of a layer; What consists of a heat-sealable biaxially-stretched polypropylene (OPH) layer / printing layer / adhesive layer / polyethylene (PE) layer / aluminum vapor deposition non-stretched polypropylene (CPP) layer etc. are mentioned.

  The method for producing the display strip of the present invention is not particularly limited, and a conventionally known coating method can be used. For example, a method of forming a sealant layer by coating the base material layer with a heat activated adhesive or the like so as to have a predetermined thickness by a gravure method or a calender method may be used. Depending on the thickness of the sealant layer, the same resin may be coated multiple times.

  When the sealant layer is composed of two or more layers, the base material layer is coated with a pressure-sensitive adhesive that exhibits adhesiveness at room temperature, and then a thermally activated pressure-sensitive adhesive or the like is coated thereon. In addition, when the outermost layer is masked, after the adhesive is coated on the base material layer, a film of polypropylene, low density polyethylene, ethylene-vinyl acetate resin or the like used as the masking agent is laminated thereon. Is done.

In addition, when forming a sealant layer by coating a heat-activatable pressure-sensitive adhesive layer and when coating a pressure-sensitive adhesive that exhibits adhesiveness at room temperature, it is preferably applied in the range of 10 to 200 g / m2, respectively. It is more preferable to apply in the range of 30 to 100 g / m2.
A method for attaching a bag enclosing a product to the display strip of the present invention is not particularly limited, but for example, it is preferable to attach by a procedure shown in FIG. In this method, first, a bag enclosing a product is placed so that the front side of the bag is in contact with the display strip, and then the upper portion of the bag is heat sealed to bond the bag to the display strip (FIG. 2a). When a bag containing a predetermined number of products is connected to the display strip, the bag containing each product is turned upside down around the heat seal portion so that the surface of the bag is opposite to the display strip ( FIG. 2b). In this state, if one end of the display strip is hung on a hook or the like, the adhesive portion between the bag and the display strip is as shown in FIG. 2c. Therefore, if the bag enclosing the product is pulled downward, it is less It can be easily removed from the display strip by force.

  The bonding strength between the bag and the display strip is not particularly limited, but is preferably 1 to 30 N / 15 mm. If it is less than 1 N / 15 mm, the product may fall due to its own weight depending on the weight of the product. If it exceeds 30 N / 15 mm, it may not come off even if the bag enclosing the product is pulled in a suspended state. is there. More preferably, it is 5-20N / 15mm.

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

A heat-activatable pressure-sensitive adhesive (manufactured by Toyo Ink Manufacturing Co., Ltd., “Heat Magic DW1040W”) is applied to a biaxially stretched polypropylene film having a thickness of 50 μm at a coating amount of 30 g / m 2 using a bar coater, and 40 ° C. in a dryer. Dry for 4 minutes. After curing at room temperature for 1 day, it was cut into a width of 35 mm to obtain a display strip.
No tackiness was observed on the surface of the obtained display strip.

Thermally active pressure-sensitive adhesive ("Aron Tac TT-1225", manufactured by Toagosei Co., Ltd.) is applied on the PE layer of the laminated paper that is extruded and laminated so that the thickness of the polyethylene (PE) layer is 30 μm on 50 g / m 2 paper. Apply at a coating amount of 40 g / m 2 using a coater and dry in a dryer at 40 ° C. for 10 minutes. After curing at room temperature for one day, if it is cut to a width of 35 mm, a display strip can be obtained.
No tackiness is observed on the surface of the resulting display strip.

A heat activated adhesive (“Eco Brid TM-120”, manufactured by Daicel Chemical Industries, Ltd.) is applied to a biaxially stretched polypropylene film having a thickness of 75 μm at a coating amount of 50 g / m 2 using a bar coater, and then dried with a dryer. Dry at 40 ° C. for 10 minutes. After curing at room temperature for 1 day, it was cut into a width of 35 mm to obtain a display strip.
No tackiness was observed on the surface of the obtained display strip.

Bar coater is coated with a heat-activatable adhesive ("Ecobrid TM-100", manufactured by Daicel Chemical Industries, Ltd.) on the surface of a laminated paper obtained by dry laminating 40 g / m2 of paper on a biaxially stretched polyethylene terephthalate film with a thickness of 12 μm. Is applied at a coating amount of 30 g / m 2 and dried in a dryer at 40 ° C. for 10 minutes. After curing at room temperature for one day, if it is cut to a width of 35 mm, a display strip can be obtained.
No tackiness is observed on the surface of the resulting display strip.

(Reference Example 1)
A butyl rubber-based pressure-sensitive adhesive that exhibits adhesiveness at room temperature is applied to a biaxially stretched polyethylene terephthalate film having a thickness of 50 μm at a coating amount of 30 g / m 2 using a bar coater, and dried at 40 ° C. for 4 minutes in a dryer. After curing at room temperature for 1 day, a 20 μm thick single-site catalyst type linear low density polyethylene layer is further laminated on the pressure-sensitive adhesive layer. If this is cut into a width of 35 mm, a display strip can be obtained.
No tackiness is observed on the surface of the resulting display strip.

(Reference Example 2)
An anchor coat layer is applied on a biaxially stretched polyethylene terephthalate film having a thickness of 50 μm, and then 13 μm of low density polyethylene is extruded and laminated. A butyl rubber adhesive is applied to the low-density polyethylene surface at a coating amount of 30 g / m 2 using a bar coater, and dried in a dryer at 40 ° C. for 4 minutes. After curing at room temperature for 1 day, an ethylene vinyl acetate resin layer having a thickness of 5 μm was further laminated on the adhesive layer. If this is cut into a width of 35 mm, a display strip can be obtained.
No tackiness is observed on the surface of the resulting display strip.
(Comparative Example 1)

A metallocene low density polyethylene layer having a thickness of 20 μm was laminated on a biaxially stretched polypropylene film having a thickness of 50 μm. This was cut into a width of 35 mm to obtain a display strip.
No tackiness was observed on the surface of the obtained display strip.
(Comparative Example 2)

A biaxial polypropylene film having a thickness of 50 μm was coated with an acrylic pressure-sensitive adhesive having adhesiveness at room temperature to a thickness of 20 μm, and this was cut into a width of 35 mm to obtain a display strip.
(Evaluation)

About the display strip produced in the Example and the comparative example, the handleability, adhesiveness, and re-adhesiveness were evaluated with the following method.
The results are shown in Table 1.

(1) Evaluation of handleability The obtained display strip was subjected to a strip bag apparatus equipped with an automatic tape feeding mechanism using a roller, and whether the display strip was smoothly fed was evaluated according to the following criteria.
○: Smoothly sent ×: The roller was clogged and it was not sent smoothly

(2) Evaluation of adhesiveness Using a strip bag device, the sealing temperature was set to 195 ° C and the sealing time was set to 250 msec, and the bag material was thermocompression bonded to produce an adhesive sample. About the adhesion sample cut to 15 mm width, seal strength was measured at a tensile speed of 300 mm / min using a tensile tester (manufactured by Toyo Seiki Seisakusho Co., Ltd., Strograph V1-C). As the bag material, a film having a total thickness of 50 μm of sealable OPP / ink / polyethylene / sealing OPP was used from the surface.

(3) Evaluation of Re-adhesiveness Using a strip bag device, the sealing temperature was set to 195 ° C. and the sealing time was set to 250 msec, and the bag material was thermocompression bonded to produce an adhesive sample. After peeling the bag material from the adhesive sample, the packaging bag containing 50 g of internal content was again adhered, and the packaging bag was suspended for 24 hours for observation. The test was performed on 10 samples, and the number of packaging bags dropped by 24 hours was counted.

  ADVANTAGE OF THE INVENTION According to this invention, the automation of the process of attaching the bag which enclosed the goods can be performed easily, and the display strip which can re-adhere the bag which enclosed the goods once removed can be provided.

It is a schematic diagram which shows strip bag display. It is a schematic diagram which shows one example of the procedure which attaches the bag which enclosed the goods to the display strip of this invention.

Explanation of symbols

1 Display strip 2 Bag containing product 3 Sealing area

Claims (7)

A display strip for mounting and displaying a plurality of bags enclosing products,
The display strip is composed of at least a base material layer and a sealant layer,
The display strip according to claim 1, wherein the sealant layer contains a heat activated adhesive.   The sealant layer has a layer structure composed of two or more layers, and at least the outermost layer is a heat-active pressure-sensitive adhesive layer containing a heat-active pressure-sensitive adhesive, and the inner side of the heat-active pressure-sensitive adhesive layer The display strip according to claim 1, wherein the layer is an adhesive layer exhibiting adhesiveness at room temperature.   3. The display strip according to claim 1, wherein the thermally active pressure-sensitive adhesive contains a thermoplastic resin having a secondary transition point of −10 to 70 ° C. and a solid plasticizer having a melting point of 70 to 120 ° C. 4.   The display strip according to claim 1, wherein the thermally activated adhesive further contains a tackifier. A display product according to any one of claims 1 to 4, wherein a plurality of bags in which products are enclosed are arranged and attached,
The product display body, wherein the display strip and the bag are joined together by thermocompression bonding.   The product display body according to claim 5, wherein the adhesive surface of the display strip is exposed when the bag attached to the display strip is peeled off.   The product display body according to claim 6, wherein the bag can be re-bonded to the exposed adhesive surface of the display strip.

Images