JP4459656B2 - Manufacturing method for product exhibits - Google Patents

Description

The present invention relates to a method for manufacturing 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. Thus, the bag which enclosed the goods is manufactured with the bag making packaging machine which fills the inside of a bag and manufactures a bag while packaging a bag.
For example, in a vertical bag making and packaging machine called a pillow wrapping machine, a sheet-like film is formed into a cylindrical shape by a former and a tube, and a vertical edge of the cylindrical film is heat-sealed (heated) by a vertical sealing mechanism. Welding). Then, the product is filled from the tube into the tubular film that finally becomes the bag, and the upper end portion of the tubular film and the lower end portion of the subsequent bag are formed by a pair of sealing jaws of the horizontal sealing mechanism disposed below the tube. Then, after heat-sealing, the center of the heat-sealed portion (lateral seal portion) is cut with a cutter to produce a bag enclosing the product.

By the way, the bags enclosing the products in this way are often sold side by side on a display shelf of a store. 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.

On the other hand, a display method for products that does not require a display shelf is known as strip-back display. As shown in FIG. 3, the strip-back display is an display form in which a plurality of products B are attached to a tape material (display strip S) having a predetermined width and suspended. 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 through the hole. Things were used. In addition, for example, by attaching a resin hook to a predetermined position of a tape made of paper or resin in advance and opening a hole punch on the bag side in which the product is enclosed, the product is hooked at that position. It was also used to attach. However, in these display strips, there has been a problem that it is difficult to automate the process of attaching a bag enclosing a product to the display strip using a machine, and thus strip back exhibition has not been widely used. It was.

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. For example, Patent Document 1 discloses an apparatus in which a bag is fixed to an exhibition carrying band simultaneously with heat sealing of the upper and lower ends of the bag by a horizontal sealing mechanism.

However, when a bag enclosing a product is manufactured in such a continuous process and the bag is attached to a display strip under normal sealing conditions, the bag is easily detached due to vibration during transportation of the product display body. There was a thing. On the other hand, if the heat seal condition between the bag and the display strip is set to a higher temperature and longer time than usual so that the bag does not easily come off, production efficiency will deteriorate and the bag will be removed from the display strip when purchasing the product. When the bag cannot be pulled or the bag is forcibly pulled, the bag itself may be damaged or reopened.

JP-T 9-508879

In view of the above situation, the present invention can securely attach a bag enclosing a product and a display strip, and can efficiently attach a bag and a display strip enclosing the product in a short time. It aims at providing the manufacturing method of a body.

The present invention is a method for manufacturing a product display body in which a plurality of bags enclosing products are attached to a display strip, the product being filled into a cylindrical film having an open end, and the cylindrical film One end of the bag is sealed by heat sealing to produce a bag in which the product is enclosed, and one end of the bag in which the product is encapsulated is the residual heat at the time of heat sealing in the bag making and packaging step. The product display body manufacturing method includes a bag mounting step in which a product display body is manufactured by attaching to the display strip by heat sealing while maintaining the glass transition temperature or more of the resin constituting the surface of the bag.
The present invention is described in detail below.

The inventors of the present invention made a bag enclosing a product in a continuous process, and as a result of earnestly examining the cause of the bag being easily removed when the bag was attached to a display strip, the bag enclosing the product was When manufactured by heat sealing, it was found that the unevenness (serration) formed in the heat sealing portion was a problem.
The serration formed in the heat seal portion of the bag is a transfer of the concavities and convexities formed on the surfaces of the pair of sealing jaws that are used to make the bag in which the product is sealed. It is formed for the purpose of improving the sealing performance of the heat-sealed portion of the enclosed bag. In a bag in which a product with serrations formed in such a heat seal portion is enclosed, usually, in order to prevent reopening of the heat seal portion, the heat seal portion is once cooled to cure the heat seal portion, and then the display strip. A heat seal was attached.

However, according to the study by the present inventors, when the heat seal portion of the bag on which the serration is formed is heat sealed to the display strip, the display strip and the bag are in point contact where only the convex portion of the serration contacts, Even if sufficient seal strength cannot be obtained, and even if the seal strength can be increased, the contact area between the bag and the display strip is small. It has been found that it has fallen or has come off during transportation.
In addition, if the bag containing the product is heat-sealed to the display strip so firmly that the serrations are crushed, the seal strength will be high, so it will not drop naturally due to its own weight or come off during transportation. When removing the bag containing the product, the surface layer of the bag is destroyed, so the printed surface is damaged and the product looks bad. In the worst case, it propagates to places other than the seal part. It has been found that they peeled off, and scratches and holes were made in the bags to maintain the quality of the products.
Accordingly, the inventors of the present invention, when continuously performing the process of producing a bag enclosing a product and the process of attaching the bag to the display strip, heat seal the bag on which the serration is formed to the display strip. When attaching by (1), it was found that the portion where the serration was sufficiently formed by the residual heat of the first heat seal could be sufficiently adhered by performing the next heat seal in a soft state, and the present invention was completed.

In the method for manufacturing a product display body of the present invention, first, a product is filled in a tubular film having one end opened, and the product is enclosed by sealing one end of the tubular film by heat sealing. A bag making and packaging process is performed.

In the method for producing a product display body of the present invention, a conventionally known bag making and packaging machine can be used in the bag making and packaging step.
FIG. 1 is a schematic view showing an example of a bag making and packaging machine used in the bag making and packaging process of the method for producing a product display body of the present invention.
As shown in FIG. 1, a bag making and packaging machine 10 mainly includes a forming mechanism 11 for forming a film F sent in a sheet shape into a cylindrical shape, and a cylindrical film F (hereinafter referred to as a cylindrical film). And a horizontal sealing mechanism 14 that seals the upper and lower ends of the bag B in which the product C is sealed by horizontally sealing the cylindrical filter. .

In order to manufacture a bag in which a product is enclosed by such a bag making and packaging machine 10, first, a sheet-like film F is sent to the forming mechanism 11.
The forming mechanism (former) 11 is composed of a cylindrical tube 11b that is open at the top and bottom, and a shoulder 11a that is disposed so as to surround the tube 11b, and a sheet-like film F is formed between the shoulder 11a and the tube 11b. A cylindrical film is produced by passing through.

The sheet-like film F is not particularly limited, and a film usually used for a bag enclosing a product can be used. Among them, the base material can be easily adjusted for heat sealability of the bag to be produced. A composite film having a layer (A) and a sealant layer (A) is preferred. Moreover, when using such a composite film, it is preferable to produce the said cylindrical film so that the said base material layer (A) may become the surface side, and the said sealant layer (A) may become a back surface side.

Although it will not specifically limit as said base material layer (A) if it has high intensity | strength, For example, the biaxially stretched film which has heat-sealing property is suitable. The biaxially stretched film is excellent in strength, and by making such a biaxially stretched film the outermost surface of the bag, the surface on the bag side is not easily destroyed when the bag is removed from the manufactured product display. can do.

Although it does not specifically limit as a biaxially stretched film which has the said heat seal property, For example, a heat sealable biaxially stretched polypropylene film or a heat sealable biaxially stretched polyethylene terephthalate film etc. are suitable.
In this specification, heat-sealable means that a process for imparting heat-sealability is performed, and as such a process, for example, propylene-ethylene-butene ternary is applied to the surface of a film. Examples thereof include a method of providing a very thin terpolymer layer made of a resin having a heat seal property such as a polymer or a hot melt polymer. A film provided with such a terpolymer layer is often used as a bag material particularly in Europe and the United States. It is also conceivable to subject the surface of the base material layer (A) to mat treatment, semi-matt treatment or corona discharge treatment. By performing such surface treatment, when the surface of the display strip described later is melted, high adhesion to the surface of the base material layer (A) is obtained, and heat sealing becomes possible.

Although it does not specifically limit as thickness of the said base material 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 to be produced may be unnecessarily thick.

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 base material layer (A) and the sealant layer (A) may be laminated via an adhesive, and are laminated via an intermediate layer, and the intermediate layer and the base material layer (A) serve as an adhesive. It may be laminated via.
Examples of the adhesive include a two-component solution type mainly composed of a polyether / polyurethane system, an aromatic polyether system, an aromatic polyester system, an aliphatic polyester system, an aliphatic polyurethane system, and an aliphatic polyether system. Conventionally known adhesives 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.
Although it does not specifically limit as said intermediate | middle layer, For example, a polyethylene film is suitable.

The peel strength between the base material layer (A) and the sealant layer (A) is preferably 0.3 N / 15 mm or more. When it is less than 0.3 N / 15 mm, a product display body is manufactured using the composite film, and when the bag enclosing the product is removed from the display strip, the base material layer (A) and the sealant layer on the surface of the bag Separation (delamination) may occur with (A). 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 composite film may further include a layer that ensures other functions between the base material layer (A) and the sealant layer (A). Examples of such a layer include a printing layer and an aluminum vapor deposition layer.

Next, the pull-down belt mechanism 12 conveys the tubular film downward, and the vertical seal mechanism 13 heats and seals the overlapping portion of the tubular film against the tube 11b with a constant pressure.

The pull-down belt mechanism 12 is a mechanism that conveys the tubular film wound around the tube 11b downward while adsorbing it, and is provided in the left-right direction with the tube 11b interposed therebetween as shown in FIG.
The vertical sealing mechanism 13 is a mechanism that heats and vertically seals the overlapping portion of the tubular film wound around the tube 11b while pressing it against the tube 11b with a constant pressure.

Next, the product C is filled from the upper end opening of the tube 11b into the vertically sealed cylindrical film conveyed further downward by the pull-down belt mechanism 12. In addition, the lower end of the cylindrical film that has been vertically sealed is heat-sealed and sealed when the bag B in which the product C is previously sealed is manufactured as described later, and only the upper end is opened. Yes.
The pair of sealing jaws (seal members) 15 incorporating the heater of the lateral sealing mechanism 14 are sandwiched and pressed from the front side and the rear side of the upper end of the cylindrical film filled with the product C, and the product C is enclosed. A seal is applied by applying pressure and heat to the cylindrical film portion that will be the upper end of the bag B and the lower end of the next bag. At the center position in the height direction, the bag B in which the product C is enclosed is manufactured by separating the bag B in which the product C is enclosed from the subsequent vertically sealed tubular film.

A pair of sealing jaws 15 constituting the horizontal sealing mechanism 14 incorporates a heater for heat-sealing the longitudinally sealed cylindrical film in the lateral direction, and the pair of sealing jaws 15 are mutually connected to the cylindrical film. In order to improve the sealing performance of the bag to be produced, it is preferable that groove-shaped irregularities are formed on the surfaces that are pressed against each other through the one end portion. A bag produced by being sandwiched between such sealing jaws has serrations formed by transferring the unevenness of the sealing jaws to the heat sealing portion.

The sealing temperature at the time of vertical sealing and horizontal sealing of the cylindrical film having been subjected to vertical sealing is not particularly limited, and is suitably determined according to the material, size, thickness, and the like of the film to be used. The preferred upper limit is 160 ° C. If it is less than 110 ° C., the sealing strength of the bag to be manufactured may be insufficient and may be reopened immediately. If it exceeds 160 ° C., the film may be altered by heat, or the sealing strength of the bag to be manufactured may be It may become too high to open the bag.

The load applied at the time of vertical sealing and horizontal sealing of the tubular film is not particularly limited and is appropriately determined according to the material, size, thickness, and the like of the film to be used. The preferable lower limit is 300 kg, and the preferable upper limit is 700 kg. If it is less than 300 kg, the sealing strength of the bag to be manufactured is insufficient and may be reopened immediately. If it exceeds 700 kg, the sealing strength of the bag to be manufactured becomes too high and it is difficult to open the bag. May be.

The sealing time at the time of carrying out the vertical sealing and horizontal sealing of the cylindrical film is not particularly limited and is appropriately determined according to the material, size and thickness of the film to be used, but the preferable lower limit is 60 ms (mm Second), the preferred upper limit is 250 ms. If it is less than 60 ms, the sealing strength of the bag to be manufactured is insufficient and may reopen immediately. If it exceeds 250 ms, the sealing strength of the bag to be manufactured becomes too high and it is difficult to open the bag. May be.

Next, in the manufacturing method of the product display body of the present invention, the glass transition temperature of the resin that constitutes the surface of the bag with the residual heat at the time of heat sealing in the bag making and packaging process at one end of the bag in which the product is enclosed. While maintaining the above, a bag attachment process is performed in which the product strip is attached to the display strip by heat sealing.

FIG. 2 is a schematic view showing a state of the bag attaching process.
As shown in FIG. 2, in the bag attaching step, the bag B enclosing the product produced in the bag making and packaging step is conveyed to the fixing mechanism 20 mainly composed of the heater 22 and the pressing body 21. And attached to the display strip S by heat sealing.

The pressing body 21 can be swung by a predetermined angle so that the tip portion of the pressing body abuts on or separates from the heater 22, and the display strip is driven between the pressing body 21 and the heater 22 by the drive belt 23. S is carried. Although not shown, the pressing body 21 is connected to a pressing mechanism for pressing and pressing the pressing surface against the heater 22.

In such a fixing mechanism 20, the bag B in which the product is enclosed is transported from the point P <b> 1 cut by the cutter inside the seal jaw 18 to the point P <b> 2 on the heater 22 via the display strip S, and the product is enclosed. The upper end portion of the bag B is sandwiched between the pressing body 21 and the heater 22, pressure is applied, and the display strip S is heat sealed.

In the bag attaching process, one end portion of the bag B enclosing the product heat-sealed in the display strip S forms a serration of the bag enclosing the product heat-sealed by the sealing jaw in the bag making and packaging process described above. In the present invention, the temperature of the upper end portion where the serration is formed is maintained at a temperature equal to or higher than the glass transition temperature of the resin constituting the surface of the bag. It is attached to the display strip S by heat sealing. Here, the glass transition temperature of the resin constituting the surface of the bag specifically means the glass transition temperature of the resin constituting the base material layer (A) described above.
In the method for producing a product display body of the present invention, the glass transition temperature of the resin constituting the surface of the bag is not particularly limited, but 70 ° C. or higher is sufficient for the resin normally used for bags.

In the method for manufacturing a product display body of the present invention, since the serration formed at one end of the bag does not harden, the contact area between the one end of the bag enclosing the product and the display strip increases, Even if the heat seal condition is not made extremely strict, a product display body in which a product-sealed bag and a display strip have sufficient sealing strength can be manufactured. Therefore, it is possible to prevent the bag containing the product from being naturally dropped due to the weight of the product or coming off during transportation when the product display body is displayed at the store. In addition, one end of the bag in which the product is enclosed is heat-sealed to the display strip while keeping the residual heat at the time of heat-sealing in the bag-making packaging process above the glass transition temperature of the resin constituting the surface of the bag. Since it is attached, the sealing time can be shortened, it becomes difficult to damage the bag and the product enclosed in the bag, and the production efficiency can be improved.

Although it does not specifically limit as sealing strength of the bag with which the said product was enclosed, and a display strip, A preferable minimum is 1 N / 30mm and a preferable upper limit is 50 N / 30mm. If it is less than 1 N / 30 mm, depending on the weight of the product, the bag enclosing the product may fall due to its own weight, and if it exceeds 50 N / 30 mm, the bag enclosing the product in a suspended state may be pulled. May not come off. A more preferable lower limit is 5 N / 30 mm, and a more preferable upper limit is 30 N / 30 mm.

The conditions for heat-sealing the bag containing the product to the display strip are appropriately determined depending on the material, size, thickness, etc. of the display strip to be used. The preferred lower limit of the sealing temperature is 70 ° C., and the preferred upper limit is 200 ° C. When the temperature is less than 70 ° C., the sealing strength between the bag and the display strip becomes insufficient, and when the manufactured product display body is displayed at the store, the bag in which the product is naturally enclosed by its own weight falls, It may come off during transportation. If the temperature exceeds 200 ° C, the bag or display strip may change in quality due to heat, or the sealing strength between the bag and the display strip may become too high, and the bag containing the product in a suspended state cannot be pulled out. Sometimes.

The load applied when heat-sealing the bag containing the product to the display strip is not particularly limited and is appropriately determined according to the material, size, thickness, etc. of the display strip to be used. Is 5 kg, and the preferred upper limit is 20 kg. If it is less than 5 kg, the sealing strength between the bag and the display strip will be insufficient, and when the manufactured product display is displayed at the storefront, the bag with the product naturally dropped or transported due to the weight of the product. It may come off inside. If it exceeds 20 kg, the bag or display strip may be damaged, or the sealing strength between the bag and the display strip will be too high, and it may not be possible to pull the bag containing the product in a suspended state. .

The sealing time when heat-sealing the bag containing the product to the display strip is not particularly limited and is appropriately determined according to the material, size, thickness, etc. of the display strip to be used. 100 ms, the preferred upper limit is 300 ms. If it is less than 100 ms, the sealing strength between the bag and the display strip becomes insufficient, and when the manufactured product display body is displayed at the storefront, the bag in which the product is naturally enclosed by its own weight falls or is transported. It may come off inside. If it exceeds 300 ms, the bag or display strip may be altered by heat or pressure, or the sealing strength between the bag and the display strip will be too high, and it will not be possible to pull the bag containing the product in a suspended state. There are things to do.

Although it does not specifically limit as said display strip, It is preferable that it is a structure which has a base material layer (B) and a sealant layer (B) at least. Of these, the sealant layer (B) preferably forms a surface of the display strip that is to be bonded to the bag.

The sealant layer (B) is preferably made of an ethylene vinyl acetate copolymer.
Since the ethylene vinyl acetate copolymer is a resin excellent in heat sealability, the sealant layer (B) and the base material 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.
In this case, it is preferable that a tackifier is further contained.
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.

The sealant layer (B) preferably contains an easy peel resin composition composed of an adhesive component and a cohesive failure component. By using such a sealant layer (B) as the outermost layer combined with the bag enclosing the product, when removing the bag enclosing the product from the display strip, the sealant layer (B) of the display strip Destruction or peeling occurs at the interface between the sealant layer (B) of the display strip and the bag surface, so that the appearance of the bag is not impaired.
In this specification, the easy peel property means a property that a film or the like attached by heat sealing can be easily peeled off from an adherend using a human hand so as not to be damaged, and an easy peel resin. The composition means a resin composition capable of exhibiting such easy peel properties when used for bonding a film or the like to an adherend.

The adhesive component in the easy-peelable resin composition is not particularly limited as long as it can give the sealant layer (B) the property of being heat-sealable with the surface of the bag, but many of the bags currently used in Europe and the United States. In view of adopting heat-sealable biaxially oriented polypropylene (OPH) on the surface, polypropylene, a copolymer of propylene and other olefins such as propylene-ethylene-butene terpolymer, and single site At least one selected from the group consisting of low-density polyethylene such as catalyst-based 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.
The cohesive failure component in the easy peel resin composition is not particularly limited as long as it can give the sealant layer (B) an easy peel property that is easier to break than the surface layer of the mating bag, for example, Examples thereof include styrene-based 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.

The sealant layer (B) may be a single layer or a plurality of layers. When the sealant layer (B) is composed of a single layer, the contents of the adhesive component and the cohesive failure component are not particularly limited, and are appropriately selected according to the material of the other bag. In general, the greater the content of the adhesive component, the higher the heat sealability, and the greater the content of the cohesive failure component, 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.

The sealant layer (B) may be formed on substantially the entire surface of the display strip, or may be formed in a striped pattern, and is formed only at a predetermined position where a bag enclosing a product is attached. May be. 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.

Although it does not specifically limit as said base material layer (B), it has sufficient intensity | strength from the use which attaches the bag which enclosed many goods, and hangs, and it is heat resistance which does not melt or deteriorate at the time of heat sealing For example, biaxially stretched polypropylene (OPP), biaxially stretched polyethylene terephthalate, metal foil, paper, or a laminate thereof is suitable.

The display strip preferably further includes a polyethylene layer between the sealant layer (B) and the base material layer (B). Since polyethylene is flexible and has high tensile elongation, the above-mentioned polyethylene layer improves the strength of the entire display strip, and products are enclosed when drilling (hole punching) is performed to suspend the display strip. When the removed bag is removed, it can withstand the load applied to that portion. Moreover, the said polyethylene layer also plays the role which bonds a base material layer (B) and a sealant layer (B). The polyethylene can be laminated 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.

Moreover, the said base material layer (B) and sealant layer (B) may be laminated | stacked by the well-known dry lamination method through an adhesive agent, and may be laminated | stacked by the thermal lamination method which does not use a solvent.

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 sealant layer (B) and the base material 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 punching process for hanging on a hook in order to suspend and display the manufactured product display body, 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 made 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 is strengthened or the base layer (B) and the sealant layer (B It is preferable to use one having a polyethylene layer or a nylon layer.

In the method for manufacturing a product display body according to the present invention, the process of attaching the bag enclosing the product to the display strip is repeated a predetermined number of times through the bag making and packaging step and the bag attaching step described above, as shown in FIG. Such a product display body in which a bag in which a plurality of products are enclosed is attached to a display strip can be manufactured.

In the method for manufacturing a product display body of the present invention, when one end of a bag enclosing the product is attached to a display strip by heat sealing, the one end of the bag is used to store residual heat during heat sealing in the bag making and packaging process. This is performed while maintaining the glass transition temperature or higher of the resin constituting the surface of the bag, so that even if serrations are formed at one end of the bag, the contact area between the bag and the display strip is increased, and sufficient sealing strength is obtained. A product exhibit can be manufactured. Therefore, the product display body manufactured according to the present invention does not naturally fall off the upper display strip or come off during transportation due to the weight of the product when displayed at the store.
In addition, one end of the bag containing the product is sealed to heat-seal the display strip while keeping the residual heat at the time of heat-sealing in the bag-making packaging process above the glass transition temperature of the resin constituting the bag surface. The time can be shortened, and it becomes difficult to damage the bag and the product enclosed in the bag, and the production efficiency can be improved.

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 After printing on one side of a heat-sealable biaxially stretched polypropylene film (FOH) manufactured by Nimura Chemical Co., Ltd. with a thickness of 30 μm, this printed surface and an aluminum-deposited unstretched polypropylene film with a thickness of 25 μm Non-Solbond (Daiichi Seika Kogyo Co., Ltd., main component XC-231 and curing agent XA-126 in a ratio of 10: 4 was used as the adhesive with the vapor deposition surface of (Tosero Co., Ltd., WA-L). ) Was laminated at a coating amount of 1 g / m ² using a dry lamination method to obtain a laminate.
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.
The heat sealing conditions were 120 ° C., 450 kg, and 150 ms.

(2) Production of display strip A sheet of polyethylene terephthalate layer (12 μm) / polyethylene layer (30 μm) / easy peel layer (Showa Denko Plastic Products, Aromar film TPFX3: 40 μm) was cut to a width of 35 mm, A display strip was made.

(3) Manufacture of product display body The heat seal part of the obtained bag was kept at 100 ° C. and attached to the display strip by heat sealing according to the method shown in FIG.
The heat seal conditions were 180 ° C., 15 kg, and 275 ms.

(Example 2)
A product display body was manufactured in the same manner as in Example 1 except that the display strip was heat-sealed while maintaining the temperature of the heat seal portion of the bag at 70 ° C.

(Comparative Example 1)
A product display body was manufactured in the same manner as in Example 1 except that the temperature of the heat seal part of the bag was cooled to room temperature and then heat sealed to the display strip.

(Evaluation)
(1) Evaluation of sealing strength between bag and display strip Using a tensile testing machine (Strograph V1-C, manufactured by Toyo Seiki Seisakusho Co., Ltd.), the bag from the product exhibit manufactured in Examples 1 and 2 and Comparative Example 1 was used. Then, the film was peeled off at a tensile speed of 300 mm / min, and the seal strength was measured.
The results are shown in Table 1.

(2) State of bag removal The bag subjected to the bag removal test and the surface of the display strip were visually observed to determine whether or not breakage occurred.

As shown in Table 1, the product exhibit manufactured in Examples 1 and 2 has a high seal strength of 10 to 30 N / 35 mm between the bag and the display strip, and either the bag or the display strip after removal. There was no damage at all.
On the other hand, the product display body manufactured in Comparative Example 1 was not damaged in either the removed bag or the display strip, but the seal strength between the bag and the display strip was as low as 5 N / 35 mm, The bag dropped out with a slight impact.

ADVANTAGE OF THE INVENTION According to this invention, manufacture of the goods display body which can attach the bag and display strip which enclosed the goods reliably, and can attach the bag and display strip which enclosed the goods efficiently in a short time. A method can be provided.

It is the schematic which shows an example of the bag making packaging machine used in the bag making packaging process of the manufacturing method of the goods display body of this invention. It is the schematic which shows the mode of the bag attachment process of the manufacturing method of the goods display body of this invention. It is a schematic diagram which shows strip bag display.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Bag making packaging machine 11 Forming mechanism 11a Shoulder 11b Tube 12 Pull-down belt mechanism 13 Vertical seal mechanism 14 Horizontal seal mechanism 15 Seal jaw 20 Adhering mechanism 21 Press body 22 Heater 23 Drive belt B Bag C in which product is enclosed C Product F Film S Display strip

Claims (2)

A method of manufacturing a product display body in which a plurality of bags enclosing products are attached to a display strip,
A bag making and packaging step of filling the product into a tubular film having one end opened, and sealing one end of the tubular film by heat sealing to produce a bag enclosing the product, and the product One end of the enclosed bag is attached to the display strip by heat sealing while maintaining the residual heat at the time of heat sealing in the bag making and packaging process above the glass transition temperature of the resin constituting the surface of the bag. And a bag mounting step for producing a body. The method for producing a commodity display body according to claim 1, wherein one end of the bag in which the commodity is enclosed is attached to the display strip by heat sealing in a state of being maintained at 70 ° C or higher.

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