JP2012250506A - Foamed board with beautified end face, method for producing the same, mount paper for display, and container oribako - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foamed board at the end face of which no air bubble of a foamed layer exposes, which is excellent in beauty and design property and has an appearance of a luxurious feeling.SOLUTION: In a thermoplastic resin foamed board which is provided with a skin layer on at least one main surface, a cutting remainder is formed at the end part of thermoplastic resin foamed board by cutting so that the skin layer on one main surface can remain along an end part peripheral edge and then the cutting remainder is fixed to another main surface side by folding it once or more times. Thus, the foamed board with beautified end face which is characterized by being provided with a beautified end face where the end face is covered with the skin layer can be produced.

Description

  The present invention relates to an end face beautified foam plate made of a thermoplastic resin foam plate suitably used for POP advertising applications and the like, a manufacturing method thereof, a display board made of the end face beautified foam plate, and a container using the end face beautified foam plate. The end face beautified foam board, the display mount and the container of the present invention do not expose the bubbles of the foam layer on the end face, have excellent aesthetics and design, and have a high-quality appearance.

  Thermoplastic resin foam boards, such as polystyrene resin foam boards, are lightweight but strong, have excellent moldability, are inexpensive, are hydrophobic, hygienic, and have excellent heat insulation and heat insulation properties. Therefore, it is widely used as a POP advertising mount or a lunch box (see, for example, Patent Documents 1 and 2).

  Patent Document 1 discloses a food packaging box in which a bottom plate is provided at the other end of a cylindrical barrel portion that is open at one end, and the barrel portion is composed of a plate material obtained by polymerizing and bonding wood to one surface of a foamed resin material. In addition, a food packaging box is disclosed in which an inner wall surface of the body portion is configured by a surface on the wood side of the plate material.

  In Patent Document 2, a releasable pressure-sensitive adhesive layer and a peelable sheet are sequentially laminated on at least one side of a laminated board in which a paper sheet is bonded to both front and back surfaces of a plate-like core material through an adhesive layer. A display panel is disclosed.

Utility Model Registration No. 3143291 Japanese Utility Model Publication No. 5-29084

  A thermoplastic foam board used for conventional display mounts and containers is manufactured by cutting a long raw material foam board into a suitable thickness with a certain thickness, and cut end face (hereinafter referred to as Kiguchi). In some cases, the bubbles in the foamed layer are exposed, so that there is a problem that the beauty and design are deteriorated in POP advertising applications and lunch box applications. Moreover, in the container for lunch boxes, there is a problem in that the bubbles in the foam layer are exposed at the end of the foam, so that the liquid permeates from the exposed surface of the bubbles and the beauty and design are deteriorated.

  The present invention has been made in view of the above circumstances, and the foam of the foam layer is not exposed at the end of the mouth, and the end face beautification foam is made of a thermoplastic resin foam plate that is excellent in beauty and can prevent liquid permeation from the end face. It is an object of the present invention to provide a plate and a manufacturing method thereof, a display mount made of the end face beautified foamed plate, and a container using the end face beautified foamed plate.

  In order to achieve the above object, the present invention provides a thermoplastic resin foam plate having a skin layer provided on at least one main surface, wherein one end of the thermoplastic resin foam plate is provided along the periphery of the end portion. A beautifying end portion whose end face is covered with a skin layer is formed by cutting so that the skin layer of the main surface remains to form a remaining cutting portion and then bending and fixing the remaining cutting portion to the other main surface side at least once. An end face beautified foam board is provided.

In the end face beautified foamed plate of the present invention, it is preferable that the surface of the remaining cutting portion is heated and melted, and the remaining cutting portion is bent at least once on the other main surface side and fixed by fusion.

In the end face beautified foam board of the present invention, the skin layer is preferably formed of one or more layers selected from the group consisting of a non-foamed resin skin layer, a non-foamed resin layer, a resin film, and paper.

  In the end face beautified foam plate of the present invention, the thermoplastic resin foam plate is preferably a polystyrene resin foam plate.

  The end face beautification foamed plate of the present invention preferably has a square shape in plan view, and the beautification end portions are preferably formed at four end portions thereof.

  Further, the present invention provides the skin of the one main surface along the peripheral edge of the thermoplastic resin foamed plate in which the skin layer is provided on at least one main surface, and the end surface is exposed to the foam layer. A step of forming a cutting remainder by cutting so that a layer remains, and a step of forming a beautified edge whose end face is covered with a skin layer by bending the cutting remainder to the other main surface side at least once and fixing it The manufacturing method of the end face beautified foam board characterized by having.

  In the manufacturing method of the end face beautified foamed plate of the present invention, it is preferable that the surface of the remaining cutting portion is heated and melted, and the remaining cutting portion is bent at least once on the other main surface side and fixed by fusion.

In the method for producing an end-face beautified foam board of the present invention, the skin layer is formed of one or more layers selected from the group consisting of a non-foamed resin skin layer, a non-foamed resin layer, a resin film, and paper. Is preferred.

  In the manufacturing method of the end face beautification foam board of this invention, it is preferable that the said thermoplastic resin foam board is a polystyrene-type resin foam board.

  In the manufacturing method of the end face beautified foam plate of the present invention, it is preferable that the thermoplastic resin foam plate has a quadrangular shape in plan view, and the beautified end portions are formed at four end portions thereof.

  Moreover, this invention provides the mount for display which consists of the said end surface beautification foam board.

  The present invention also provides a container obtained by folding or bending the end face beautified foam plate.

  Further, the present invention provides a presentation mount comprising a thermoplastic resin foam board provided with a skin layer on at least one main surface, and is provided at one end of the display mount along an edge of the end mount. A cutting remainder is formed by cutting so that the skin layer remains, and a beautifying end portion whose end face is covered with a skin layer is provided by bending and fixing the cutting remainder to the other main surface side at least once. An exhibition board characterized by being provided.

Further, the present invention is a container formed by folding or bending a thermoplastic resin foam plate provided with a skin layer on at least one main surface,
Cutting is performed at the end of the container so as to leave the skin layer of one main surface along the peripheral edge of the end, and a remaining cutting portion is formed, and the remaining cutting portion is bent one or more times toward the other main surface. Provided is a container characterized in that a beautified end portion whose end face is covered with a skin layer is provided by being fixed.

The end face beautified foam board of the present invention is provided with a beautified end portion whose end face is covered with a skin layer, so it is superior in beauty and design compared to a conventional product in which bubbles of the foam layer are exposed on the end face. It becomes a high-quality foam board.
The method for producing an end-face beautified foam board of the present invention can produce an end-face beautified foam board that is excellent in aesthetics and design and has a high-class feeling at low cost.
Since the display board of the present invention is provided with a beautified end part whose end face is covered with a skin layer, it is superior in beauty and design compared to a conventional product in which bubbles in the foam layer are exposed on the end face. A high-quality display panel can be provided.
Since the container of the present invention is provided with a beautified end part whose end face is covered with a skin layer, it is superior in beauty and design compared to a conventional product in which bubbles in the foam layer are exposed on the end face, and has a high-class feel. In addition to being excellent in aesthetics and design, it is more preferable in terms of hygiene.

It is a perspective view which shows 1st Embodiment of the end surface beautification foam board of this invention. It is a longitudinal cross-sectional view which shows 1st Embodiment of the beautiful board of this invention. It is a top view which shows the process of manufacturing the end surface beautification foam board of 1st Embodiment, and shows the state which gave the cutting process to the edge part of a thermoplastic resin foam board. It is a longitudinal cross-sectional view which shows the process which shows the process of manufacturing the end surface beautification foam board of 1st Embodiment, and gave the cutting process to the edge part of a thermoplastic resin foam board. It is a longitudinal cross-sectional view which shows the process of manufacturing the end surface beautification foam board of 1st Embodiment, and shows the state which bent and fixed the cutting remainder and formed the beautification end part. It is a longitudinal cross-sectional view which shows the process of manufacturing the end surface beautification foam board of 2nd Embodiment, and shows the state which gave the cutting process to the edge part of a thermoplastic resin foam board. It is a longitudinal cross-sectional view which shows the process of manufacturing the end face beautification foam board of 2nd Embodiment, and shows the state which bent and fixed the cutting remainder and formed the beautification end part. It is a longitudinal cross-sectional view which shows the process of manufacturing the end surface beautification foam board of 3rd Embodiment, and shows the state which gave the cutting process to the edge part of a thermoplastic resin foam board. It is a longitudinal cross-sectional view which shows the process which manufactures the end surface beautification foam board of 3rd Embodiment, and shows the state which bent and fixed the cutting remainder and formed the beautification end part. It is a longitudinal cross-sectional view which shows the process of manufacturing the end surface beautification foam board of 4th Embodiment, and shows the state which gave the cutting process to the edge part of a thermoplastic resin foam board. It is a longitudinal cross-sectional view which shows the process of manufacturing the end surface beautification foam board of 4th Embodiment, and shows the state which bent and fixed the cutting remainder and formed the beautification end part.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG.1 and FIG.2 is a figure which shows 1st Embodiment of the end surface beautification foam board of this invention. End face beautification foam board 1A of this embodiment has a square shape in a plan view, and beautification end parts 5a, 5b, 5c, and 5d whose end faces are covered with a skin layer are provided at the respective four sides. It is characterized by that.

  The thermoplastic resin foam plate 10 constituting the main body of the end-face beautified foam plate 1A is obtained by cutting the periphery of a plate-like foam produced by a conventionally known extrusion foam molding method into an appropriate size, as shown in FIG. In the illustrated example, the skin layer 6 is laminated on both main surfaces 3 and 4 of the foam layer 2. The skin layer 6 is a non-foamed resin skin layer (so-called skin layer) formed on both sides of the foamed layer 2 when the thermoplastic resin foam plate 10 is manufactured.

The skin layer 6 is not limited to the skin layer.
Further, the thermoplastic resin foam plate 10 is not limited to the one obtained from the extrusion foam molding method, and foaming within the mold is performed by foam-molding the foamed resin particles or the pre-foamed particles obtained by pre-foaming the foamable resin particles in the mold. It may be obtained from a molding method.
The skin layer 6 is a layer formed on at least one main surface of the foamed layer 2, and is a layer that prevents the foam layer 2 from being exposed and improves the beauty and design. Examples of the skin layer 6 include a non-foamed resin skin layer, a non-foamed resin layer, a resin film, and paper. These may be laminated on the foamed layer 2 as a single layer as the skin layer 6, or may be laminated on the foamed layer 2 in a multilayer of two or more layers.

  The non-foamed resin skin layer is a layer that is naturally formed on both main surfaces of the foam layer 2 when producing a plate-like foam by extrusion foam molding or in-mold foam molding, and contains bubbles. It refers to the thin skin that is not. And the thickness is about 1-200 micrometers normally.

  The non-foamed resin layer is laminated by extruding a molten non-foamed resin from a T-die or the like on at least one surface of a plate-like foam having a skin layer or at least one main surface of the foamed layer 2 from which the skin layer has been removed. It is a layer that can be. And the thickness is about 3-500 micrometers normally. Further, as the resin, various conventionally known thermoplastic resins can be used, and examples thereof include a polystyrene resin, a polyethylene resin, a polypropylene resin, a polyethylene terephthalate resin, and among these, a polystyrene resin is particularly preferable. preferable.

  The resin film is laminated by heat fusion or at least one main surface of the foamed layer 2 from which the skin layer is removed or laminated via an adhesive or the like on the plate-like foam having the skin layer. It is a layer that can be made to be. As the resin film, for example, a polystyrene-based resin can be used. In addition, a polystyrene resin and a high-impact polystyrene are mixed or a high-impact polystyrene is used alone, and the high-impact polystyrene includes a styrene-butadiene copolymer. May be dispersed in a salami structure and contain a large number of particles having a particle size of 0.3 μm to 10 μm. In addition, linear low density polyethylene, high density polyethylene, low density polyethylene, propylene homopolymer, ethylene / propylene random polymer, ethylene / propylene block polymer, ethylene propylene / butene / terpolymer, ethylene / vinyl acetate copolymer , Ethylene-unsaturated carboxylic acid ester copolymer (for example, ethylene-methyl methacrylate copolymer), ethylene-unsaturated carboxylic acid metal salt copolymer (for example, ethylene-magnesium acrylate (or zinc) copolymer) , Propylene-vinyl chloride copolymer, propylene-butene copolymer, propylene-maleic anhydride copolymer, propylene-olefin copolymer (propylene-ethylene copolymer, propylene-butene-1 copolymer) polyethylene or polyethylene Propylene-modified unsaturated carboxylic acid (for example, maleic anhydride), ethylene-propylene rubber, atactic polypropylene, etc., polyethylene, ethylene-propylene copolymer, propylene-butene-1 copolymer and these two types Examples thereof include films such as the above mixtures, polyethylene terephthalate, polybutylene terephthalate and the like. Moreover, the resin film which laminated | stacked 2 or more types of films, the resin film which performed printing, the resin film which vapor-deposited metals, such as aluminum, and the resin film which laminated | stacked metal foil, such as aluminum foil, may be sufficient.

Paper is a layer that can be laminated via an adhesive or the like on at least one surface of a plate-like foam having a skin layer or at least one main surface of the foam layer 2 from which the skin layer has been removed. Examples of the paper include high-quality paper, glassine paper, birchment paper, kraft paper, and kent paper that are excellent in surface smoothness and printability. Also, composite paper in which two or more kinds of paper are laminated, composite paper in which paper and resin film are laminated, composite paper in which paper and metal foil such as aluminum foil are laminated, resin film between two sheets of paper, It may be a composite paper in which a metal foil or the like is inserted.
Although the thickness of the skin layer 6 is not specifically limited, It is preferable that it is the range of 1-1000 micrometers, and it is more preferable that it is the range of 3-500 micrometers.

As the resin material of the end face beautified foam plate 1A, conventionally known various thermoplastic resins can be used, and examples thereof include polystyrene resins, polyethylene resins, polypropylene resins, polyethylene terephthalate resins, and the like. Polystyrene resins are particularly preferred.
Examples of polystyrene resins include homopolymers of styrene monomers such as styrene, α-methylstyrene, vinyltoluene, chlorostyrene, ethylstyrene, i-propylstyrene, dimethylstyrene, bromostyrene, or copolymers thereof. A polystyrene-based resin containing 50% by mass or more of styrene is preferable, and polystyrene is more preferable. Further, the polystyrene resin may be a copolymer of the styrene monomer and a vinyl monomer copolymerizable with the styrene monomer, the main component of which is the styrene monomer. As, for example, alkyl (meth) acrylate such as methyl (meth) acrylate, ethyl (meth) acrylate, butyl (meth) acrylate, cetyl (meth) acrylate, (meth) acrylonitrile, dimethyl maleate, dimethyl fumarate, diethyl In addition to fumarate and ethyl fumarate, bifunctional monomers such as divinylbenzene and alkylene glycol dimethacrylate are exemplified.

  In addition, if a polystyrene resin is a main component, other resins may be added. Examples of the resin to be added include polybutadiene, Examples thereof include rubber-modified polystyrene resins to which diene rubber-like polymers such as styrene-butadiene copolymers and ethylene-propylene-nonconjugated diene three-dimensional copolymers are added, so-called high impact polystyrene. Alternatively, a polyethylene resin, a polypropylene resin, an acrylic resin, an acrylonitrile-styrene copolymer, an acrylonitrile-butadiene-styrene copolymer, and the like can be given. In addition, as a polystyrene resin as a raw material, a polystyrene resin that is not a recycled raw material, such as a normal polystyrene resin that is commercially available, a polystyrene resin newly produced by a method such as a suspension polymerization method, etc. can be used. Recycled raw materials obtained by reprocessing used polystyrene-based resin foamed molded products can be used. As this recycled material, used polystyrene-based resin foam moldings such as fish boxes, household appliance cushioning materials, food packaging trays, etc. are collected, and recycled materials that are regenerated by the limonene dissolution method or heating volume reduction method are used. Can do. Recyclable raw materials that can be used include home appliances (eg, TVs, refrigerators, washing machines, air conditioners) and office work, in addition to those obtained by reprocessing used polystyrene-based resin foam moldings. A non-foamed polystyrene resin molded product that has been separated and collected from an industrial machine (for example, a copying machine, a facsimile machine, a printer, etc.), pulverized, melt-kneaded, and repelletized can be used.

Although the thickness of this end face beautification foam board 1A is not specifically limited, For the purpose of using it as a mount for display or a container such as a POP advertisement, it is usually preferably in the range of 2-20 mm, more preferably in the range of 3-15 mm. preferable.
In addition, the thickness of this end face beautification foam board 1A says the value measured with the following thickness measuring methods.
<Thickness measurement method>
The portion excluding both ends 20 mm in the longitudinal direction of the foamed plate was taken as the measurement points at positions spaced 50 mm apart in the longitudinal direction. The measurement point was measured using a dial thickness gauge SM-112 (manufactured by Teclock Corporation), and the thickness was measured to a minimum unit of 0.01 mm. The average value (number of measurement points n = 9 or more) of the measured values was taken as the thickness [mm] of the peripheral frame material for containers.

Although the density of this end face beautification foam board 1A is not specifically limited, For the purpose of using it as a mount for display or a container such as a POP advertisement, it is usually preferable to be in the range of 0.03 to 0.3 g / cm ³ , A range of 0.04 to 0.15 g / cm ³ is more preferable.
In addition, the density of 1 A of end face beautification foam boards says the value measured with the following density measuring methods.
<Density measurement method>
A test piece of 50 cm ³ or more was cut so as not to change the original cell structure of the material, its mass and volume were measured, and the total density was calculated by the following formula.
Density (g / cm ³ ) = Test piece mass (g) / Test piece volume (cm ³ )
However, the test specimen for measurement is cut out from a sample that has passed 72 hours or more after molding, and is subjected to atmospheric conditions of 23 ° C. ± 2 ° C./50 RH% ± 5 RH% or 27 ° C. ± 2 ° C./65 RH% ± 5 RH% for 16 hours or more. It is what was left.

In the thermoplastic resin foam plate before forming the beautifying end portions 5a, 5b, 5c, and 5d, the bubbles of the foamed layer 2 are exposed at the respective end surfaces (wood ends). This is because the cut surface when the periphery of the plate-like foam produced by the extrusion foam molding method or the like is cut into an appropriate size is an end surface (a lip).
In this embodiment, it cuts so that the skin layer 6 of one main surface 3 may remain along the edge part periphery of a foamed board, the cutting remaining parts 8a and 8b are formed, and the surface of this cutting remaining parts 8a and 8b is heated. Then, the remaining cutting portions 8a and 8b are bent to the other main surface 4 side and fixed by fusion so that the beautified end portions 5a, 5b, 5c and 5d covered with the skin layer 6 are formed. It has become. The fixed portion 7 to which the remaining cutting portions 8a and 8b are fixed by fusion is hardly visible.

The beautification end portions 5a, 5b, 5c, and 5d remain on one main surface 3 side of the remaining cutting portions 8a and 8b by bending the remaining cutting portions 8a and 8b to the other main surface 4 side and fixing them by fusion bonding. The outer skin layer 6 is the end face of the foam plate. As a result, the bubbles of the foam layer 2 are covered with the skin layer 6 at the end face (the end) of the foam board, and the end face beautified foam board 1A is excellent in aesthetics and design and has a high-class feeling.
As a method for fixing the remaining cutting portions 8a and 8b, it is preferable in production that the surfaces of the remaining cutting portions 8a and 8b are heated and melted and fixed by fusing.
However, it is not limited to fixing by fusion, and other fixing methods include applying an adhesive such as a hot-melt adhesive to part or all of the surfaces of the remaining cutting portions 8a and 8b and fixing them by bonding. Is mentioned.

3-5 is a figure which shows the process of manufacturing end face beautification foam board 1A of 1st Embodiment.
The thermoplastic resin foam plate 10 used as the material of the end face beautified foam plate 1A is preferably manufactured by a conventionally known extrusion foam molding method or a conventionally known in-mold foam molding method, and the extrusion foam molding method is more preferable in production. .
In this extrusion foaming molding method, a molten foaming agent-containing thermoplastic resin is extruded and foamed from the slit of a resin supply device having a slit on the discharge side, and cooled to produce a long foamed plate, which has an appropriate size. To produce a thermoplastic resin foam board 10. In the production of the thermoplastic resin foam plate 10 by this extrusion foam molding method, a circular die having an annular slit is attached to the tip of a resin supply device, and a foam sheet extruded and foamed into a cylindrical shape is passed through a pinch roll immediately after extrusion. Then, it is preferable to produce a single thermoplastic resin foam plate 10 by crushing the cylinder and fusing it in two layers.

  As a foaming agent used in the production of the thermoplastic resin foam plate 10, nitrogen dioxide, carbon dioxide, propane, n-butane, i-butane, n-pentane, i-pentane, and a mixture of two or more of these are used. Of these, n-butane and i-butane are preferable. When using a hydrocarbon foaming agent such as butane, the addition amount is preferably in the range of 1 to 10 parts by mass, and in the range of 2 to 8 parts by mass, relative to 100 parts by mass of the thermoplastic resin. More preferred.

  In the production of the thermoplastic resin foam plate 10, it is preferable to add a foam nucleating agent to the raw material thermoplastic resin. Examples of the foam nucleating agent include talc, sodium hydrogen carbonate, ammonium hydrogen carbonate, calcium carbonate, clay, citric acid and the like. Among these, talc is more preferable. The amount of the foam nucleating agent added is preferably in the range of 1 to 8 parts by mass and more preferably in the range of 2 to 6 parts by mass with respect to 100 parts by mass of the thermoplastic resin.

  The thermoplastic resin foam plate 10 may be provided with various additives as required, such as colorants, flame retardants, lubricants (hydrocarbons, fatty acids, fatty acid amides, esters, alcohols, metal soaps, silicone oils, Waxes such as low molecular weight polyethylene), spreading agents (liquid paraffin, polyethylene glycol, polybutene, etc.), dispersants and the like can also be added.

The thermoplastic resin foam plate 10 cut to an appropriate size has a non-foamed resin skin layer (skin layer 6) formed on both main surfaces 3 and 4, but the cut end surface is the foam layer 2. Bubbles are exposed.
The skin layer refers to a thin skin portion that does not include bubbles formed in the surface layer when the section in the thickness direction of the thermoplastic resin foam plate 10 is enlarged. Moreover, the thickness of this skin layer says the average value (the number of measurement locations n = 24 or more) of the thickness measured by the following measuring methods.
<Method for measuring thickness of skin layer or skin layer>
The thermoplastic resin foam plate is cut in a direction (thickness direction) perpendicular to the surface, and the vicinity of the cut surface is enlarged 300 to 700 times using a scanning electron microscope (S-3000N manufactured by Hitachi, Ltd.). An enlarged photograph was taken, and the thickness of the skin layer or skin layer was measured. The thickness of the skin layer or the skin layer was the length from the surface of the foam plate to the surface of the air bubbles on the outermost layer side, and three points were measured for each of the 8 air bubbles on the outermost layer side selected arbitrarily. The average value of the thicknesses measured at 24 locations was defined as the thickness [μm] of the skin layer or skin layer.

  Next, as shown in FIG. 3 and FIG. 4, cutting is performed so that the skin layer 6 of one main surface 3 remains on the end portion of the obtained thermoplastic resin foam plate 10 along the periphery of the end portion. Thus, the remaining cutting portions 8a and 8b are formed. This cutting process can be performed using a V-groove processing apparatus or the like conventionally used in V-groove processing of polystyrene foam plates.

  In this example, as shown in FIG. 4, it cuts so that the two cutting remaining parts 8a and 8b which make a cross sectional view triangle may be left. The two remaining cutting portions 8a and 8b form cross-sectional triangles having different sizes, and bend them in the direction of the arrows in FIG. 4 to beautify the end portions 5a and 5b having vertical end faces as shown in FIG. 5b, 5c, 5d can be formed. The skin layer 6 remains on one main surface 3 side of the two remaining cutting portions 8a and 8b.

After forming the remaining cutting portions 8a and 8b, the surfaces of the remaining cutting portions 8a and 8b are heated and melted, and the remaining cutting portions 8a and 8b are bent in the direction of the arrow in FIG. Thereby, as shown in FIG. 5, a beautified end portion 5 a whose end face is covered with the skin layer 6 is formed.
By forming beautification end portions 5a, 5b, 5c, and 5d for the four sides of the thermoplastic resin foam plate 10, respectively, the end face beautification foam plate 1A shown in FIG. 1 is obtained.

  The method of heating the surfaces of the remaining cutting portions 8a and 8b is not particularly limited, but the surface of the two remaining cutting portions 8a and 8b is in a molten state at the same time when the hot blade is brought into contact with the foamed plate during the cutting process. A method of bending between them and fusing them is preferable.

End face beautification foam board 1A of this embodiment is provided with beautification end portions 5a, 5b, 5c, 5d whose end faces are covered with skin layer 6, so that the foam of the foam layer is exposed on the end face. Compared to the above, it is superior in beauty and design and becomes a high-quality foam board.
Moreover, according to the manufacturing method of the said end face beautification foam board 1A, the end face beautification foam board 1A which is excellent in the beauty and the design property, and has a high-class feeling can be manufactured cheaply.

6 and 7 are diagrams showing a second embodiment of the present invention.
The end face beautified foam board 1B according to the present embodiment has substantially the same configuration as the end face beautified foam board 1A according to the first embodiment described above, and is manufactured by the same manufacturing method. Two remaining cutting portions 8c and 8d having substantially the same shape and size are formed, and the beautified end portion 5a is formed by bending and fixing them by fusion bonding.

In the end face beautification foamed plate 1B of the present embodiment, the skin layer 6 remaining in the two remaining cutting portions 8c and 8d has the two remaining cutting portions 8c and 8d on the other main surface 3 side (the direction indicated by the arrow in FIG. 6). ), The beautified end portion 5a having a vertical end surface covered with the non-foamed resin layer 6 can be formed, and the fixed portions 7 to which the remaining cutting portions 8c and 8d are fixed by fusion are obtained. Almost no visible.
By forming the beautified end portions 5a, 5b, 5c, and 5d on the four sides of the thermoplastic resin foam plate 10, the end face beautified foam plate 1B is obtained.

  Since the end face beautified foam plate 1B according to the present embodiment is provided with beautified end portions 5a, 5b, 5c, and 5d, the beauty and design of the end face beautified foam plate 1B are compared with the conventional product in which bubbles of the foam layer are exposed on the end face. Excellent foam and high-quality foam board.

8 and 9 are diagrams showing a third embodiment of the present invention.
End face beautified foam board 1C according to the present embodiment has substantially the same configuration as end face beautified foam board 1A according to the first embodiment described above, and is manufactured by a similar manufacturing method. The beautification end portion 5a is formed by forming one cutting residual portion 8e having a triangular cross-sectional view by grooving, and bending and fixing it by fusion.

  The remaining cutting portion 8e has a skin layer 6 on one main surface 3 side, and when the remaining cutting portion 8e is bent and fixed by fusion, the outer skin layer 6 of the remaining cutting portion 8e is beautified end portion 5a. Although the end face of the thermoplastic resin foamed plate 10 is the end surface of the cutting remaining portion 8e, a foam exposed surface 11 is exposed to the foam layer 2, and the foam exposed surface 11 is a beautified end portion. It is exposed on the other main surface 4 side of 5a.

  End face beautification foam board 1C of this embodiment has one main surface 3 and the end face of each beautification edge part 5a, 5b, 5c, 5d covered with skin layer 6, and the bubble of a foam layer is exposed to the end face. Compared to conventional products, it has excellent aesthetics and design and is a high-quality foam board.

10 and 11 are views showing a fourth embodiment of the present invention.
The end face beautified foam plate 1D according to the present embodiment has substantially the same configuration as the end face beautified foam plate 1C according to the third embodiment described above, and is manufactured by the same manufacturing method. In the cutting process, one cut remaining portion 8f having a triangular cross-sectional view is formed by V-groove processing, and the beautified end portion 5a is formed by bending and fixing it by fusing.

  The cut remaining portion 8f has a skin layer 6 on one main surface 3 side, and when the cut remaining portion 8e is bent and fixed by fusion, the skin layer 6 of the remaining cut portion 8e is beautified end portion 5a. Although the end face of the thermoplastic resin foamed plate 10 is the end surface of the cutting remaining portion 8e, a foam exposed surface 11 is exposed to the foam layer 2, and the foam exposed surface 11 is a beautified end portion. It is exposed on the other main surface 4 side of 5a.

  End face beautification foam board 1D of this embodiment has one main surface 3 and the end face of each beautification end part 5a, 5b, 5c, 5d covered with skin layer 6, and the bubble of a foam layer is exposed to the end face. Compared to conventional products, it has excellent aesthetics and design and is a high-quality foam board.

In addition, each embodiment mentioned above is a mere illustration of the end face beautification foam board of this invention, and this invention is not limited to these embodiment, A various correction and change are possible.
For example, in each of the embodiments described above, the end face beautified foam plate 1A having a square shape in plan view is exemplified, but the plan view shape of the end face beautifying foam plate is not limited to a square shape, and for example, a plan view triangle, rhombus, parallelogram A trapezoidal shape, a polygonal shape of pentagon or more, a circular shape, a semicircular shape, an elliptical shape, an oval shape, and other various shapes can be used.

In each of the above-described embodiments, the surface of the remaining cutting portion is heated and melted, and the remaining cutting portion is bent to the other main surface 4 side and fixed by fusion. Alternatively, an adhesive such as a hot melt adhesive may be applied, and the remaining cutting portion may be bent to the other main surface 4 side and fixed by adhesion.
In each of the above-described embodiments, the thermoplastic resin foam plate 10 has a structure in which the skin layers 6 are formed on both main surfaces 3 and 4 of the foam layer 2, but only on one main surface 3. The structure in which the skin layer 6 was formed may be sufficient. This is because the end face beautified foam board of the present invention can cover the end faces of the beautified end portions 5a, 5b, 5c and 5d with the skin layer if only one main surface 3 has a skin layer.
Further, the reason that the skin layer 6 may not be formed on the other main surface 4 is that, for example, the edge beautified foam board of the present invention is used as an exhibition mount, and the other main surface 4 is in contact with a wall or the like. This is because the other main surface 4 is hardly visually observed. As shown in FIGS. 9 and 11, the reason why there may be a bubble exposed surface 11 exposed on the other main surface 4 side is the same as this.
However, as shown in FIGS. 5 and 7, the one main surface 3, the end surfaces of the beautification end portions 5 a, 5 b, 5 c, 5 d and the other main surface 4 are all covered with the skin layer 6. Of course, it is more preferable.

The end face beautified foam board of the present invention is suitably used as an exhibition board that is suitably used for POP advertising applications and the like.
In order to attach posters and photographs to one or both main surfaces, this display mount is laminated with an adhesive layer and release paper in order on at least one main surface, and the release paper is peeled off during use. It can be set as the structure which can affix a poster and a photograph on an agent layer.

  The display board made of the end face beautified foam board of the present invention is provided with a beautified end part whose end face is covered with a skin layer, so it is more beautiful than the conventional product in which bubbles of the foam layer are exposed on the end face.・ It is possible to provide high-quality display panels with excellent design.

The end face beautification foamed board of the present invention can also be suitably used for a container formed by folding or bending.
The method for producing a container using the end face beautified foam plate of the present invention is not particularly limited. For example, a V groove that forms a crease is formed in the length and width of the end face beautified foam plate of the present invention, and this is bent to form a box. And a method of using the end face beautification foamed plate of the present invention as a rectangular or circular side frame, winding a side frame around the periphery of a separately prepared bottom plate, and fusing both ends of the side frame.

  Since the container of the present invention is provided with a beautified end part whose end face is covered with a non-foamed resin layer, compared to a conventional product in which bubbles of the foam layer are exposed on the end face, it is excellent in beauty and design, A high-quality folded box container can be provided, and liquid penetration from the end face can be prevented, so that it is excellent in aesthetics and design, and more preferable in terms of hygiene.

  The present invention relates to an end face beautified foam plate made of a thermoplastic resin foam plate suitably used for POP advertising applications and the like, a manufacturing method thereof, a display board made of the end face beautified foam plate, and a container using the end face beautified foam plate. The end face beautified foam board, the display mount and the container of the present invention do not expose the bubbles of the foam layer on the end face, have excellent aesthetics and design, and have a high-quality appearance.

  DESCRIPTION OF SYMBOLS 1 ... End face beautification foam board, 2 ... Foam layer, 3 ... One main surface, 4 ... The other main surface, 5a, 5b. 5c, 5d ... beautification edge, 6 ... skin layer, 7 ... fixing part, 8a, 8b, 8c, 8d, 8e, 8f ... remaining cutting part, 9 ... removal part, 10 ... thermoplastic resin foam plate, 11 ... bubble exposure surface.

Claims (14)

In the thermoplastic resin foam plate provided with a skin layer on at least one main surface,
At the end portion of the thermoplastic resin foam plate, cutting is performed so that the skin layer of one main surface remains along the peripheral edge of the end portion, and the remaining cutting portion is formed on the other main surface side. An end face beautified foamed board characterized in that a beautified end portion whose end face is covered with a skin layer is provided by being bent and fixed once or more.   2. The end face beautified foam board according to claim 1, wherein the surface of the remaining cutting portion is heated and melted, and the remaining cutting portion is bent once or more on the other main surface side and fixed by fusion bonding.   The said skin layer is formed of one or more layers selected from the group consisting of a non-foamed resin skin layer, a non-foamed resin layer, a resin film, and paper. Edge beautified foam board.   The end face beautification foam board according to any one of claims 1 to 3, wherein the thermoplastic resin foam board is a polystyrene resin foam board.   The end face beautification foam board according to any one of claims 1 to 4, wherein the end face beautification end portion is formed at four ends of the quadrangle in a plan view.   A skin layer is provided on at least one main surface, and the end surface of the thermoplastic resin foam plate from which the foam layer is exposed is left at the end of the thermoplastic resin foam plate along the periphery of the end portion. Cutting and forming a remaining cutting portion, and bending and fixing the remaining cutting portion at least once to the other main surface side to form a beautified end portion whose end surface is covered with a skin layer. The manufacturing method of the end face beautified foam board characterized.   The method of manufacturing an end face beautified foamed plate according to claim 6, wherein the surface of the remaining cutting portion is heated and melted, and the remaining cutting portion is bent once or more on the other main surface side and fixed by fusion bonding.   The said skin layer is formed of one or more layers selected from the group consisting of a non-foamed resin skin layer, a non-foamed resin layer, a resin film, and paper. Manufacturing method of end face beautification foam board.   The method for producing an end face beautified foam plate according to any one of claims 6 to 8, wherein the thermoplastic resin foam plate is a polystyrene resin foam plate.   The manufacturing method of the end face beautification foam board of any one of Claims 6-9 in which the said thermoplastic resin foam board comprises the planar view square, and the said beautification edge part is formed in the four edge parts.   An exhibition board comprising the end face beautified foam board according to any one of claims 1 to 5.   A container obtained by folding or bending the end face beautified foamed plate according to any one of claims 1 to 5. In the mount for presentation consisting of a thermoplastic resin foam board provided with a skin layer on at least one main surface,
At the end portion of the display board, cutting is performed so that the skin layer of one main surface remains along the peripheral edge of the end portion to form a cutting remaining portion, and the cutting remaining portion is once or more on the other main surface side. An exhibition mount, characterized in that it is provided with a beautified end portion whose end face is covered with a skin layer by being bent and fixed. In a container formed by folding or bending a thermoplastic resin foam plate provided with a skin layer on at least one main surface,
Cutting is performed at the end of the container so as to leave the skin layer of one main surface along the peripheral edge of the end, and a remaining cutting portion is formed, and the remaining cutting portion is bent one or more times toward the other main surface. A container characterized by having a beautified end portion whose end face is covered with a skin layer by being fixed.

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