JP2009078357A - Laminated processed paper having metal gloss - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a laminated processed paper having metal gloss which has no joint, is easy to freely develop a geometrical pattern or the like, is capable of greatly widening the degree of freedom of a design, is advantageous in the use of forgery prevention or the like, is low in cost, is capable of being recycled and is excellent in post-processability or the like. <P>SOLUTION: A non-hologramed plain transfer metal vapor-deposited plastic film is heated from its inside when laminated to paper or cardboard by extrusion lamination to produce an interference fringe to develop a rainbow like pattern. Thereafter, the film is peeled and the surface of the paper or cardboard is coated with a primer to form the laminated processed paper having metal gloss. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  This invention is to produce a rainbow-like pattern by generating interference fringes by heating a plain metal-deposited metal film for transfer, which is not hologramized, by extrusion lamination from the inside at the time of bonding to paper or paperboard. Then, it relates to a metallic glossy laminated paper produced by peeling the film and coating the surface with a primer.

  Pre-formed hologram film (hologram-processed metal-deposited plastic film) bonded by wet lamination, dry lamination or extrusion lamination, or pre-made hologram transfer film (hologram-processed metal-deposited plastic film for transfer) A processed paper produced by a method in which a plastic film is peeled off after being bonded by wet lamination or dry lamination and only the hologram deposition layer is left on the surface of the paper is known as shown in, for example, Patent Document 1. is there.

Japanese Patent Publication No. 6-077174

  Since this processed paper is simply pasted with a pre-made film, it is easy to process and a beautiful processed paper can be produced. Holographic film used for packaging materials or displays uses hologram technology to create beautiful interference fringes. The generated rainbow tone and beautiful geometric patterns are used, and it has outstanding cosmetics.

  However, the hologram film of the above-mentioned conventional processed paper has a problem in that a connecting portion is generated at a constant pitch (stroke) in manufacturing, and the hologram is intermittently or overlapped. When used for a wrapping paper, a package or POP, a display, etc., this is a factor that hinders the design and the design of the box due to dimensions. In addition, the conventional processed paper has a problem that the design (printing and the like) on the paper has a high degree of difficulty because it has a high brightness, a clear hologram and is beautiful and too conspicuous. Furthermore, since the film itself is expensive, the price as processed paper is also expensive.

  The present invention was created in view of the current situation, and the object of the present invention is to have no joints, easily express geometric patterns, etc., and greatly increase the degree of freedom of design. The present invention aims to provide a metallic glossy laminated paper that is advantageous for uses such as forgery prevention, inexpensive, recyclable, and excellent in post-processing properties.

  In order to achieve the above object, the metallic glossy laminated paper according to claim 1 heats a plain metal-deposited metal film for transfer, which is not holographically formed, from the inside at the time of bonding with paper or paperboard by extrusion lamination. Thus, an interference fringe is generated to develop a rainbow-like pattern, and then the film is peeled off and the surface is coated with a primer.

  That is, an important point of the present invention is that the extrusion lamination is heated before the film is peeled off.

  The invention described in claim 2 is based on the technical premise of the metallic glossy laminated paper according to claim 1, and the extrusion lamination is a melt extrusion lamination of plastic resin, and ethylene methacrylic acid (EMAA) as an adhesive. ), Polyethylene (PE), polypropylene (PP), ethylene vinyl acetate (EVA), ethylene ethyl acrylate (EEA), ethylene acrylic acid (EAA), ionomer resin, polyethylene terephthalate (PET), polybutylene terephthalate (PBT), poly Methyl pentene (PMP) or the like is used.

  Furthermore, the invention described in claim 3 is based on the technical premise of the metallic glossy laminated paper described in claim 2, and the melting temperature of the plastic resin is 250 ° C. to 360 ° C.

  Further, the metallic glossy laminated paper according to claim 4 is a method of peeling a plastic film after laminating a plain metal-deposited plastic film for transfer which is not hologramized with paper or paper board by wet lamination or dry lamination. Before the film is heated, the film surface is heated to generate interference fringes to express a rainbow pattern, and then the film is peeled off and the surface is coated with a primer.

  The invention according to claim 5 is based on the technical premise of the metallic glossy laminated paper according to claim 4, and the wet lamination is adhesion of acrylic emulsion, vinyl acetate emulsion, EVA emulsion, aqueous urethane emulsion. An agent is used.

  The invention according to claim 6 is based on the technical premise of the metallic glossy laminated paper according to claim 4, and the dry lamination uses an isocyanate curable urethane adhesive or an acrylic adhesive. To do.

  The invention according to claim 7 is based on the technical premise of the metallic glossy laminated paper according to claim 5 or claim 6, and the heating temperature from the surface is generated at 100 ° C. to 270 ° C. To do.

  As described above, in the case of the conventional processed paper using the existing hologram film, the paper size itself is limited, such as one that is cut flat according to the joint (stroke), but the metallic gloss laminate according to the present invention Since the processed paper uses a solid transfer metal vapor deposition film that is not holographically formed, there is no seam, so the flow dimensions are flexible and the box dimensions can be designed freely.

  Moreover, a geometric pattern etc. can be expressed freely by using a sculpture exothermic roll with a pattern.

  Furthermore, a unique streak pattern can be expressed by setting the conditions during extrusion lamination, and can be adjusted by the film tension processing speed at a temperature condition of 250 ° C. to 360 ° C.

  The conventional pre-made holographic film has high brightness and high definition, which is a disadvantage because of the lack of design freedom. The processed paper according to the present invention has a calm rainbow tone. The degree is greatly expanded.

  And, it has an unprecedented unique texture and appearance, has a rainbow-like visual directivity, and has a color difference due to the light source, which is advantageous for applications such as forgery prevention.

  The processed paper by the wet lamination / dry lamination method according to claim 4 has no film remaining on the surface, and no film is interposed in the adhesive layer. Therefore, there is very little risk to the environment, and recycling is possible.

  Further, by using a highly transparent ink as a primer, a rich variation is possible.

  Furthermore, the post-processing is suitable for offset printing, UV offset printing, UV screen printing, and gravure printing, and it is possible to print, and the sack sticking suitability by emulsion is good, and also the surface protection processing suitability. Excellent, offset OP varnish, UV coating, and film pasting are possible.

  Hereinafter, the present invention will be described in detail based on one embodiment shown in the accompanying drawings.

  As shown in FIG. 1, the metallic glossy laminated paper K according to this embodiment has an adhesive layer 2 on a paper or paperboard 1, and a metal vapor deposition layer 3 on the adhesive layer 2. An adhesive release layer 4 is polymerized on the vapor deposition layer 3, and a plastic film 5 is polymerized on the metal vapor deposition release layer 4.

  Since the paper or paperboard 1 is configured in the same manner as a conventionally known paper or paperboard, detailed description thereof is omitted here.

  Adhesive layer 2 is a polyethylene (PE) resin layer, and in the case of extrusion lamination, interference fringes are generated by heating at 250 ° C. to 360 ° C. from the inside at the time of bonding with paper or paperboard 1. In this way, a rainbow pattern is developed, and then the film 5 is peeled and a primer is coated on the surface.

  Of course, when the metal glossy laminated paper K is manufactured by wet lamination or dry lamination, the adhesive film 2 is not heated and the plastic film 5 is peeled off after being bonded to the paper or paperboard 1. Previously, heating from the surface of the film 5 at 100 ° C. to 270 ° C. generates interference fringes and expresses a rainbow-like pattern, and then peels off the film 5 and coats the surface with a primer. .

  In the case of extrusion lamination, the adhesive layer 2 is made of ethylene methacrylic acid (EMAA), polypropylene (PP), ethylene vinyl acetate (EVA), ethylene ethyl acrylate (EEA), ethylene, in addition to the polyethylene (PE) resin. Acrylic acid (EAA), ionomer resin, polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polymethylpentene (PMP) and the like can be used.

  The adhesive layer 2 can use the same resin in the case of wet lamination or dry lamination.

  The plain metal-deposited metal film for transfer which is not holographically formed is formed of the metal-deposited layer 3, the adhesive release layer 4, and the plastic film 5, and a conventional plain metal-deposited metal film for transfer can be used. Therefore, the detailed description is abbreviate | omitted here.

  And in the case of extrusion lamination, at the time of pasting with paper or paper board 1, by heating from the inside at 250 ° C-360 ° C, an interference fringe is generated and a rainbow-like pattern is expressed, and then film 5 And coat the surface with a primer.

  In the case of wet lamination or dry lamination, the adhesive layer 2 is not heated, but after being bonded to the paper or paperboard 1 and before the plastic film 5 is peeled off, from the surface of the film 5 to 100 ° C. By heating at 270 ° C., interference fringes are generated to develop a rainbow pattern, and then the film 5 is peeled off and the primer is coated on the surface.

  Since the metallic gloss laminated paper K according to this embodiment uses a plain metal deposition film for transfer that is not holographically formed, there is no joint, the flow dimension is flexible, and the box can be dimensionally designed. In addition, by using a sculpture heating roll with a pattern, it is possible to freely express a geometric pattern etc., and by setting the conditions at the time of extrusion lamination, it is possible to express a unique streak pattern, The temperature can be adjusted by the film tension processing speed at 250 ° C. to 360 ° C.

  In addition, the processed paper K according to this embodiment example has a calm rainbow tone, so the degree of freedom of design is greatly expanded, and furthermore, it has an unprecedented unique texture and appearance, and also has a rainbow tone. Since there is directivity by visual observation and there is a difference in coloration by the light source, it is advantageous for applications such as anti-counterfeiting, and the processed paper K by wet lamination or dry lamination does not leave the film 5 on the surface and is bonded. Since no film is present in the agent layer, there is very little risk to the environment and recycling is possible.

  In addition, by using a highly transparent ink as a primer, it is possible to make a rich variation in color, and for post-processing appropriateness, there are offset printing, UV offset printing, UV screen printing, and gravure printing. In addition, it has a good suitability for sacking with an emulsion, and is excellent in a surface protection processing suitability, and can provide offset OP varnish, UV coating, film pasting, and many other excellent effects.

1 is a partially enlarged cross-sectional view of a metallic glossy laminated paper according to an embodiment of the present invention.

Explanation of symbols

K Metal Gloss Laminated Paper 1 Paper or Paperboard 2 Adhesive Layer 3 Metal Deposition Layer 4 Adhesive Release Layer 5 Plastic Film

Claims (7)

  A plain metal-deposited plastic film for transfer, which is not holographic, is heated from the inside at the time of laminating with paper or paper board by extrusion lamination to generate interference fringes and express a rainbow pattern, and then the film A metallic glossy laminated paper produced by peeling the film and coating the surface with a primer.   The extrusion lamination is a melt extrusion lamination of plastic resin, and ethylene methacrylic acid, polyethylene, polypropylene, ethylene vinyl acetate, ethylene ethyl acrylate, ethylene acrylic acid, ionomer resin, polyethylene terephthalate, polybutylene terephthalate, polymethylpentene as an adhesive. The metallic glossy laminated paper according to claim 1, which is produced using   The metal glossy laminated paper according to claim 2, wherein a melting temperature of the plastic resin is generated at 250 ° C to 360 ° C.   Interference fringes by heating non-holographic plain metal-deposited metal film for transfer with wet or dry lamination, after bonding to paper or paperboard and before peeling off the plastic film A metallic glossy laminated paper produced by generating a rainbow-like pattern by generating a film, then peeling off the film and coating the surface with a primer.   5. The metallic glossy laminated paper according to claim 4, wherein the wet lamination is produced by using an adhesive of acrylic emulsion, vinyl acetate emulsion, EVA emulsion, and aqueous urethane emulsion.   5. The metal glossy laminated paper according to claim 4, wherein the dry lamination is produced by using an isocyanate curable urethane adhesive or an acrylic adhesive.   The metal glossy laminated paper according to any one of claims 5 and 6, wherein the heating temperature from the surface is generated at 100 ° C to 270 ° C.

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