JP5181494B2 - Sheet molded body and lid - Google Patents

Description

The present invention relates to a molded sheet used for packaging contents such as food, and more specifically, it can be used for sales promotion by applying for prizes or providing prizes as application numbers or lottery numbers. In addition, the present invention relates to a sheet molded body and a lid provided with an uneven portion in a concealed area printed with an identification character string having a camouflage property from the outside and a visibility from the inside, and the identification character string.

  Conventionally, means for imparting a prize function to a sheet molded body or a packaging material for packaging contents such as food for the purpose of promoting sales of contents such as food has been used. As this means, for example, information such as hitting is printed on the outer surface of the sheet molded product or the packaging material, and concealment printing for concealing from the top is performed, or an adhesive seal is attached. The confirmation of the hit or the like is made by scraping the portion that has been subjected to the concealment printing, and the information such as the hit or the like can be confirmed by peeling off the adhesive seal.

  Usually, such a sheet molded product is molded by a molding method such as vacuum molding, pressure molding, vacuum pressure molding, etc., and is provided as a lid, a container or the like, and the contents such as food are individually wrapped in the sheet molding. For example, in the case of hitting, etc., the entire sheet molded product or the indicated part such as “winning” is cut out and sent to the destination designated by the seller. The method of applying for the sweepstakes is adopted.

  Since the above method cannot apply for a sweepstakes unless it is sent to the address specified by the seller, etc., only the sender who sent the individually molded sheet molded product to the specified address can be sure for the seller. In order to apply for the sweepstakes, it is possible to prevent third parties from applying for the sweepstakes by unauthorized means.

  However, this application method is fine for purchasers who cut off the displayed part such as “winning” of a sheet molded product in which contents such as food are individually wrapped and send it to a destination designated by the seller. It is complicated and time-consuming. In recent years, the spread of the Internet and mobile phones has been remarkable, and application methods for sweepstakes using the Internet and mobile phones have begun to be adopted.

  In this case, an identification character string that cannot be illegally deciphered, for example, a 14-digit random number, is used as an application number as a key for applying for the sweepstakes. When this identification character string is concealed by the above-described method, Unlike the method of applying for a sweepstakes by cutting off the displayed part such as “winning” of a sheet molded product in which the contents such as food are individually wrapped, for example, rubbing the concealed part without purchasing it In order to be able to confirm the identification string and apply with this confirmation information by improper acts of removing or removing the adhesive seal, such frauds from sellers and authorized purchasers etc. Therefore, there has been a demand for a sheet molded body that cannot perform such actions.

Therefore, it is not possible to falsify the application number, which is the key to applying for a prize during the period from manufacture to sales. Also, at the time of sale, etc. The packaging material which consists of a transparent laminated body which cannot confirm the application number which becomes is proposed (for example, refer patent document 1). The packaging material according to the present invention comprises a transparent laminate having a base film layer and an inner layer and a heat-adhesive resin layer, and the surface of the base film layer on the side of the heat-adhesive resin layer is printed with printing ink. A concealing layer is formed to form a concealing region, and at least the concealment region is provided with a white solid print layer, and an identification character string is printed on the white solid print layer of the concealment region by an inkjet printer. The identification character string cannot be confirmed from the front side, but can be confirmed only from the inner layer side. However, when this configuration is applied to a sheet molded body, the boundary of the identification character string can be read slightly in the form of a trace depending on the difference in light reflectance with other parts depending on the angle at which the concealed area formed on the sheet molded body is viewed. In some cases, there is a problem that the concealability is not sufficient.
JP 2004-18058 A

  Therefore, the present invention solves the above-mentioned problems, and it is impossible to falsify an identification character string that is a key for applying for a prize during the period from manufacture to sale. It is another object of the present invention to provide a sheet molded article excellent in concealment that cannot confirm an identification character string that is a key for applying for a prize by an illegal act.

In order to achieve the above object, the present invention according to claim 1 is composed of a laminate including a base material layer and a bonding material layer, on the bonding material layer side of the base material layer. A masking layer is partially provided with printing ink on the surface to form a masking area, and at least the masking area is provided with a white solid printing layer, and an identification character string is printed on the white printing layer in the masking area by an inkjet printer. It is the sheet forming object, Comprising: The surface on the opposite side to the said bonding material layer of the said base material layer which comprises the outermost surface of the said laminated body, and the surface on the opposite side to the said base material layer of the said bonding material layer In the sheet molded article, a concavo-convex portion is provided in a portion corresponding to the concealing region .

Moreover, this invention of Claim 2 consists of a laminated body provided with the base material layer and the bonding material layer, and the masking layer partially by printing ink on the surface at the side of the said bonding material layer of the said base material layer. And forming a concealing area, providing a white solid print layer at least in the concealment area, and printing an identification character string on the white solid print layer in the concealment area with an ink jet printer, wherein the laminate Concavities and convexities on the surface of the base material layer constituting the outermost surface of the body opposite to the bonding material layer and the portion corresponding to the concealment region on the surface of the bonding material layer opposite to the base material layer The concavo-convex portion is formed at the same time as the sheet is formed by providing concavo-convex portions at predetermined positions of a mold for forming the sheet .

According to a third aspect of the present invention, there is provided a lid for a container that is used by being fitted to a container having a circular opening and having a flange around the periphery of the opening. It is a sheet molded body comprising a laminate comprising a material layer and a bonding material layer, and comprising at least a horizontal top plate, partially on the surface of the base material layer on the bonding material layer side by printing ink A concealing layer is provided to form a concealing region and at least the concealing region is provided with a white solid printing layer, and an identification character string is printed on the white solid printing layer of the concealing region by an ink jet printer, and the concealing region is It is formed in the part of the top plate of the lid , the surface of the base material layer that constitutes the outermost surface of the laminate and the surface of the base material layer opposite to the adhesive material layer and the base material of the adhesive material layer An uneven portion is provided in a portion corresponding to the concealed region on the surface opposite to the layer. It is characterized in.

According to a fourth aspect of the present invention, there is provided a lid for a container used by being fitted to a container having a circular opening and having a flange around the periphery of the opening. It is a sheet molded body comprising a laminate comprising a material layer and a bonding material layer, and comprising at least a horizontal top plate, partially on the surface of the base material layer on the bonding material layer side by printing ink A concealing layer is provided to form a concealing area, a white solid printing layer is provided at least in the concealing area, and an identification character string is printed on the white solid printing layer of the concealing area by an inkjet printer, and the concealing area Is formed on the top plate portion of the lid body, the surface of the base material layer constituting the outermost surface of the laminate and the base of the bonding material layer on the side opposite to the bonding material layer. an uneven portion in a portion corresponding to the covered area of the surface opposite provided with product layer Cage, the uneven portion is a lid, characterized by simultaneously forming at a sheet molding by providing irregularities to a predetermined position of the mold for sheet molding.

This invention consists of a laminated body provided with the base material layer and the bonding material layer, and the concealment formed by providing a concealing layer partially with printing ink on the surface of the base material layer on the side of the bonding material layer. The identification character string is printed in the area, and from the outside of the sheet molded body, the identification character string cannot be confirmed because it is covered with the concealing layer, but it can be confirmed only from the inside, and further in the concealment area By providing uneven parts, irregular reflection occurs in the concealed area, the boundary of the identification character string printed in the concealed area cannot be distinguished, and the concealment is further increased, which is the key to applying for a prize during the period from manufacture to sale. The application number can not be falsified, and there is an excellent effect that the application number that is the key to applying for the sweepstakes can not be confirmed by fraudulent acts other than authorized buyers even at the time of sale etc. It is. Furthermore, by adopting a configuration in which an identification character string is printed by an ink jet printer, an identification character string composed of random numbers can be easily generated.

Moreover , by using a laminate including a base material layer and a bonding material layer, a concealing layer, a white solid printing layer, an identification character string, and the like are protected by the base material layer and the bonding material layer, and white solid printing is performed. In order to print the identification character string on the layer with an ink jet printer, the identification character string can be easily visually recognized from the inside of the sheet molded body due to the contrast.

The above-described present invention will be described in detail below with reference to the drawings.
1 is a plan view showing a first embodiment of a sheet molded article according to the present invention, FIG. 2 is a back view of FIG. 1, FIG. 3 is a sectional view taken along line XX of FIG. 1, and FIG. FIG. 5 is an enlarged cross-sectional view of a main part of a portion corresponding to FIG. 4 showing a reference form, in which 1 is a sheet molded article of the first embodiment, 2 ′ is a plastic sheet, 3 'is an uneven portion, 4 is a top plate, 5 is an oblique side wall, 6 is a horizontal flange, 7 is an outer peripheral wall, 7a is a protrusion, 7b is a skirt, 8 is a rib, 9 is a recess, and 10' is a base material layer 20 and 20 'are printing layers, 21 and 21' are concealment layers, 22 and 22 'are pattern printing layers, 23 and 23' are white solid printing layers, 24 and 24 'are identification character strings, 30 is an adhesive layer, Reference numeral 40 denotes a bonding material layer, and A and A ′ denote concealment regions, respectively.

  First, a first embodiment of a sheet molded body according to the present invention will be described with reference to FIGS. FIG. 1 is a plan view showing a first embodiment of a sheet molded body according to the present invention, FIG. 2 is a back view showing a state viewed from the inside of the sheet molded body of FIG. 1, and FIG. 3 is a line XX in FIG. 4 is an enlarged cross-sectional view of the main part shown in the circle of FIG. 3, and the sheet molded body 1 is formed of a plastic sheet 2 made of a laminate including a base material layer 10 and a bonding material layer 40. It is the lid | cover of the container which shows one Example which was made. The plastic sheet 2 is provided with a concealing layer 21 on one surface of the base material layer 10 by using a black-colored printing ink to form a concealing area A and a pattern printing layer 22 on the entire surface on which the concealing layer 21 is provided. The printing layer 20 is formed by sequentially laminating the white solid printing layer 23, and the identification character string 24 is formed on the white solid printing layer 23 in the concealment area A where the concealing layer 21 is provided using black ink with an ink jet printer. Printing is performed, and a bonding material layer 40 is provided on the surface on which the printing layer 20 and the identification character string 24 are formed via an adhesive layer 30, and (outside) base material layer 10 / printing layer 20 [hiding layer 21 / design printing layer 22 / White solid print layer 23] / identification character string 24 / adhesive layer 30 / bonding material layer 40 (inner side). Furthermore, the concavo-convex part 3 is provided in the concealment region A of the sheet molded body 1 obtained by molding the plastic sheet 2.

  A container lid showing an embodiment of the sheet molded body 1 is a container lid used by fitting to a container having a circular opening and having a flange on the periphery of the opening. A horizontal flange 6 is provided outwardly through a slanted side wall 5 that hangs downward around 4, and an outer peripheral wall 7 that continues to the outer periphery of the horizontal flange 6 is provided. The outer peripheral wall 7 is provided with an inward projection 7a and a skirt 7b at the lower end. Although not shown, the protrusion 7a engages with a flange provided at the periphery of the opening when the container lid is fitted to the opening of the container to cover the opening, and the lower surface of the flange and the upper surface of the protrusion 7a It can be locked with. Further, a rib 8 directed upward is provided in the vicinity of the outer periphery of the horizontal flange 6. The rib 8 reinforces the strength of the lid of the container, and when the containers fitted with the lid of the container are stacked, the bottom surface of the container is placed on the inner peripheral side of the rib 8 to prevent the container from slipping. Can be stacked. Further, the rib 8 is formed with a concave portion 9 that is partially recessed inward from the outside of the rib 8 at an arbitrary position, and the concave portion 9 is formed by stacking the sheet molded bodies 1 formed on the lid of the container. Then, a part of the lower side of the concave portion 9 of the sheet molded body 1 formed on the lid of the other container abuts on the rib 8 to be stacked.

  In the central part of the top plate 4, the concealment region A formed by the concealment layer 21 provided on the surface of the base material layer 10 on the bonding material layer 40 side is arranged so as to be seen through the base material layer 10. In addition, the concavo-convex portion 3 is provided in a region corresponding to the concealment region A on the outer surface of the base material layer 10. With such a configuration, directly from the outside of the sheet molded body 1 formed on the lid of the container by the uneven portion 3 and the concealing layer 21, indirectly by the pattern printing layer 22 and the white solid printing layer 23. The identification character string 24 cannot be visually recognized. In particular, by providing the concavo-convex portion 3 in the concealed area A, irregular reflection occurs in the concealed area A, and the boundary of the identification character string 24 printed in the concealed area A cannot be distinguished, so that the concealability is further increased. Further, by being fitted to a container that has been concealed by printing or coloring, the sheet molded body 1 formed on the lid of the container and the identification character string 24 cannot be viewed from the outside of the container. The identification character string 24 printed on the concealment area A provided with the concealment layer 21 can be visually recognized for the first time by opening the sheet compact 1 formed on the lid of the container from the container and viewing from the inside of the compact 1 Thus, the sheet cannot be falsified during the period from manufacture to sale, and it can be a sheet molded body that cannot be illegally acted by anyone other than an authorized purchaser even at the time of sale. In addition, although the uneven | corrugated | grooved part 3 is inevitably formed in the area | region corresponding to the concealment area | region A also on the surface on the opposite side to the contact bonding layer 30 side of the bonding material layer 40, it is not necessary to provide. In addition, in FIG. 4, although it has shown as the uneven | corrugated | grooved part 3 formed only in the outer surface of the base material layer 10 and the inner surface of the bonding material layer 40, since this uneven | corrugated | grooved part 3 is provided at the time of sheet forming, it is a plastic sheet. 2 is formed to a total thickness in the thickness direction.

  The base material layer 10 and the bonding material layer 40 can be made of a transparent synthetic resin film or sheet that can be formed into a sheet such as vacuum forming, pressure forming, vacuum pressure forming, etc. A stretched or unstretched film or sheet made of high impact polystyrene, polypropylene, polyethylene terephthalate, nylon, polyvinyl alcohol, ethylene / vinyl alcohol copolymer or the like can be used.

  For the bonding material layer 40, the same synthetic resin film or sheet as that of the base material layer 10 can be used. The thickness of the base material layer 10 and the bonding material layer 40 may be a thickness that maintains the necessary minimum strength, rigidity, and the like depending on the shape of the sheet molded body 1, and may be determined in consideration of usage, cost, etc. . Usually, it is 15 to 800 μm.

  Further, as the printing layer 20, a vehicle is appropriately selected depending on the type of the synthetic resin film used for the base material layer 10, and an ink is formed by adding pigments, various auxiliary agents and the like, and diluted appropriately with a solvent. Then, it can be formed by printing by a known printing method such as a gravure printing method. The printing layer 20 is provided with a concealing layer 21 partially on one surface of the base material layer 10 to form a concealing region A, and a pattern printing layer 22 and a white solid printing layer on the entire surface where the concealing layer 21 is provided. 23, the white solid print layer 23 prints the identification character string 24 on the white solid print layer 23 in the concealment area A provided with the concealment layer 21 by using an ink-jet printer with black ink. The identification character string 24 can be surely visually recognized by the contrast between white and black, and when the identification character string 24 is printed on the pattern print layer 22, it can be visually recognized. May be omitted.

  The identification character string 24 can be formed by printing using a dye type or pigment type ink for an ink jet printer using a known ink jet printer. In the first embodiment, the identification character string 24 is an Arabic numeral, but it may be an alphabet or a symbol, or may be a mixture of these.

  The adhesive layer 30 is, for example, an amine-terminated urethane prepolymer when the surface of the base material layer 10 on which the printed layer 20 and the identification character string 24 are formed and the bonding material layer 40 are laminated by a known dry lamination method. A known adhesive layer such as a polyurethane system obtained by a curing reaction from a polymer-epoxy resin system, a polyester-isocyanate system, a polyether-isocyanate system or the like corresponds to this.

  Further, as a molding method of forming the plastic sheet 2 into a sheet molded body, heat-induced sheet molding such as vacuum molding, pressure molding, vacuum pressure molding, hot plate molding, hot plate pressure molding or the like can be used. The concavo-convex portion 3 provided in the region corresponding to the concealment region A on the surface (outside) opposite to the concealment layer 21 side of the base material layer 10 is provided with a concavo-convex portion at a predetermined position of a mold for sheet molding, and is plastic when the sheet is molded. It is preferable to apply to the sheet 2. Moreover, although the uneven | corrugated | grooved part 3 can also be formed by embossing using the embossing plate which provided the uneven | corrugated | grooved part, another process is required and it is not preferable. The depth of the uneven portion 3 is preferably 0.05 mm to 0.5 mm, and the uneven pitch is preferably 0.5 to 3 mm. The concavo-convex pattern is not particularly limited, and examples thereof include a copy of the concavo-convex shape of a natural product such as silk, wood, stone, and grain, character symbols, lines, and various abstract patterns.

  In the sheet molded body 1 of the present invention, in the first embodiment, the concealing layer 21 is provided separately from the pattern printing layer 22 with black ink, although not shown, for example, the identification character string 24 is provided on the pattern printing layer 22. When there is a concealing solid pattern having an area (region) that can be provided, this solid pattern is used as a concealing layer, and an ink for an ink jet printer having the same color tone as this solid pattern is used. May be printed. By comprising in this way, it is not necessary to provide the concealing layer 21 which looks strange in the design printing layer 22 and the design, and it can be set as the sheet molded product excellent in the design property.

  Further, the sheet molded body 1 of the present invention is not limited to the shape of the first embodiment, and can be applied to all shapes such as an ellipse and a square. Furthermore, in the first embodiment, the lid of the container is illustrated, but it may be applied to the container.

FIG. 5 is a cross-sectional view showing a reference embodiment, and is an enlarged cross-sectional view of a main part of a portion corresponding to FIG. As shown in FIG. 5, the sheet molded body of the reference form has a plastic sheet 2 ′ consisting only of a base material layer 10 ′, and an identification character string 24 ′ is printed on an outer surface of the plastic sheet 2 ′ by an inkjet printer. A white solid print layer 23 ', a picture print layer 22', and an area covering the identification character string 24 'on the picture print layer 22' (hiding area A ') are partially provided on the entire surface printed with 24'. The printing layer 20 ′ provided in the above was formed. Furthermore, the uneven | corrugated | grooved part 3 'is provided in the said concealment area | region of the sheet molded object which shape | molded plastic sheet 2'. The reference form is different from the first embodiment only in the laminated structure of the plastic sheet 2 ', and the other parts are the same. Further, when the contents are not food, in the reference form, the base layer 10 ′ may be provided on the inner surface instead of the outer surface. In this case, the same as in the first embodiment. (Outer side) substrate layer 10 ′ / printing layer 20 ′ [hiding layer 21 ′ / design printing layer 22 ′ / white solid printing layer 23 ′] / identification character string 24 ′ (inner side). In addition, in 1st embodiment, it can also provide in the surface of the bonding material layer 40 instead of the base material layer 10. FIG. Adhesive layer 30 and on the side facing in the same manner as Reference Embodiment [concealing layer 21 / picture-printed layer 22 / solid white printing layer 23] / identification string 24 / bonding material layer of the laminated material layer 40 in this case 40 and then forming a laminate in which the base material layer 10 is laminated on the concealing layer 21 via the adhesive layer 30 (outside) base material layer 10 / adhesive layer 30 / printing layer 20 [concealing layer 21 / pattern printing Layer 22 / white solid print layer 23] / identification character string 24 / bonding material layer 40 (inner side) to obtain a plastic sheet 2 having a structure.

Next, the present invention will be described in more detail with reference to the following examples.
[Example 1]
A non-stretched polystyrene film (CPS) having a single-sided corona treatment with a thickness of 30 μm is used as a base material layer, and a concealment layer is formed by printing a concealment layer partially with a black ink on a corona treatment surface by a gravure printing method, A predetermined pattern printing layer and a white solid printing layer are sequentially printed on the entire surface on which the concealing layer is provided to provide a printing layer, and an identification character string is printed on the white solid printing layer in the concealment region using ink-jet ink with an ink jet printer. Printed. Then, the surface where the printed layer of CPS was provided using the stretched polystyrene sheet (OPS) with a single-sided corona treatment having a thickness of 250 μm on the bonding material layer and the corona-treated surface of OPS were amine-terminated urethane prepolymer-epoxy resin system. A two-component reactive adhesive was used and bonded by a dry lamination method, and cured at 40 ° C. for 2 days to cure the adhesive and produce a plastic sheet. After that, using a mold provided with a silk pattern with a pitch between convex parts of 1.5 mm and an uneven depth of 0.2 mm at a predetermined position, the base layer of the plastic sheet is brought into contact with the mold. The sheet molded body 1 of the first embodiment was produced by vacuum forming to be a lid of a circular container having an outer diameter of 105 mm and a height of 15 mm.

In the molded sheet obtained in Example 1 , the identification character string was not visible at all from the outside where the concealing layer was directly visible. The identification character string could be clearly read from the inside of the sheet molding.

It is a top view which shows 1st embodiment of the sheet molded object concerning this invention. It is a reverse view of FIG. It is the XX sectional view taken on the line of FIG. It is a principal part expanded sectional view of FIG. It is a principal part expanded sectional view which shows the reference form of the sheet molded object concerning this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sheet molded object 2, 2 'Plastic sheet 3, 3' Uneven part 4 Top plate 5 Slanted side wall 6 Horizontal flange 7 Outer peripheral wall 7a Protrusion 7b Skirt 8 Rib 9 Concave 10, 10 'Base material layer 20, 20' Print layer 21 , 21 'hiding layer 22, 22' picture printing layer 23, 23 'white solid printing layer 24, 24' identification character string 30 adhesive layer 40 bonding material layer A, A 'hiding area

Claims (4)

It consists of a laminate comprising a base material layer and a bonding material layer , and a concealing layer is partially formed by printing ink on the surface of the base material layer on the side of the bonding material layer to form a concealing region and at least the above A sheet molded body in which a white solid printing layer is provided in a concealing area, and an identification character string is printed on the white solid printing layer in the concealing area by an ink jet printer, the base material layer constituting the outermost surface of the laminate The sheet forming is characterized in that an uneven portion is provided in a portion corresponding to the concealment region on the surface opposite to the bonding material layer and the surface of the bonding material layer opposite to the base material layer. body. It consists of a laminate comprising a base material layer and a bonding material layer, and a concealing layer is partially formed by printing ink on the surface of the base material layer on the side of the bonding material layer to form a concealing region and at least the above A sheet molded body in which a white solid printing layer is provided in a concealing area, and an identification character string is printed on the white solid printing layer in the concealing area by an ink jet printer, the base material layer constituting the outermost surface of the laminate An uneven portion is provided in a portion corresponding to the concealment region on the surface opposite to the bonding material layer and the surface of the bonding material layer opposite to the base material layer, and the uneven portion is a sheet. A sheet molded body, which is formed simultaneously with sheet molding by providing irregularities at predetermined positions of a mold to be molded. A lid of a container that is used by being fitted to a container having a circular opening and having a flange at the periphery of the opening, the lid including a base material layer and a bonding material layer A sheet molded body comprising a laminate and comprising at least a horizontal top plate, and forming a concealing region by providing a concealing layer partially with printing ink on the surface of the base material layer on the side of the bonding material layer A white solid printing layer is provided at least in the concealing area, and an identification character string is printed on the white solid printing layer in the concealing area by an ink jet printer, and the concealing area is formed on the top plate portion of the lid. The concealment in the surface on the opposite side to the said bonding material layer of the said base material layer which is formed and comprises the outermost surface of the said laminated body, and the surface on the opposite side to the said base material layer of the said bonding material layer A lid having a concavo-convex portion in a portion corresponding to a region . A lid of a container that is used by being fitted to a container having a circular opening and having a flange at the periphery of the opening, the lid including a base material layer and a bonding material layer A sheet molded body comprising a laminate and comprising at least a horizontal top plate, and forming a concealing region by providing a concealing layer partially with printing ink on the surface of the base material layer on the side of the bonding material layer A white solid printing layer is provided at least in the concealing area, and an identification character string is printed on the white solid printing layer in the concealing area by an ink jet printer, and the concealing area is formed on the top plate portion of the lid. The concealment in the surface on the opposite side to the said bonding material layer of the said base material layer which is formed and comprises the outermost surface of the said laminated body, and the surface on the opposite side to the said base material layer of the said bonding material layer has established an uneven portion on a portion corresponding to a region, the uneven portion of the sheet forming Lid, characterized by simultaneously forming at a sheet molding by providing irregularities to a predetermined position of the mold that.

Images