JP4900150B2 - Brittle label and manufacturing method thereof - Google Patents

Description

  The present invention relates to a fragile label, and more particularly to a fragile label that can individually display information, has high durability, and has high security, and a method for manufacturing the same.

  In the present specification, “ratio”, “part”, “%” and the like indicating the composition are based on mass unless otherwise specified, and the “/” mark indicates that they are integrally laminated. “PET” is an abbreviation, functional expression, common name, or industry term for “polyethylene terephthalate”, “UV” for “ultraviolet light”, and “MEK” for “methyl ethyl ketone”.

  (Main application) As the main application of the brittle label of the present invention, durability against heat, light (particularly ultraviolet rays) and external force is required for automobiles, aircraft, ships, industrial machines and parts thereof. It is a label to be affixed to an article, and the label requires individual indications such as part names, and also requires high prevention (security) against counterfeiting and alteration. is there. However, it is not particularly limited as long as it is an application that requires individual display, durability, and security, such as sports equipment, daily necessities, and ornaments, and the purpose of product management and quality assurance.

(Background technology) For example, automobiles have many parts, and even the same parts are shipped to many countries. The part names and handling methods are used for the purpose of product management and quality assurance according to the language of the shipping destination. Is displayed. This display is not performed by printing on the label, but individual display is performed by silk printing etc. on the part itself, but even the same part cannot be diverted to other areas, has many unnecessary parts, and increases the manufacturing cost. It was. Therefore, if a label is used, many individual displays with different display contents can be easily made for the same part, but the label is affixed to the part and stored, transported, and assembled, but the environment is harsh. . The individual display part of the label affixed to the part, especially in ink jet printing with dye-colored ink, fades due to exposure to ultraviolet rays and becomes unreadable, and the surface of the label may collide with parts and other members. There is a high risk of scuffing, scratching, scraping, or falling off, touching water, oil, or paint solvents to make them bleed or dissolve, making them unreadable. The use of labels has been limited because they can be abused by being peeled off and replaced with other false labels, or by altering labels.
Therefore, brittle labels can be easily displayed individually for product management and quality assurance purposes, and have physical and chemical durability against light, heat, solvents and external forces, and security to prevent counterfeiting and alteration. It has been demanded.

(Prior Art) Conventionally, an anti-counterfeit label (corresponding to the brittle label of the present application) is composed of a release sheet, a lower layer label and an upper layer label which are sequentially laminated on the sheet. The label comprises a self-supporting film substrate having a visible symbol printed on at least one side thereof, and a pressure-sensitive adhesive layer applied to the release sheet side of the film substrate, and a cut at least partially intersecting the visible symbol The upper layer label comprises a non-self-supporting fragile film substrate having a visible symbol printed on at least one side thereof, and an adhesive layer applied to the lower layer label side of the film substrate; (See, for example, Patent Document 1). However, anti-counterfeiting is thought to be good, but since each type of individual display is performed in a separate process, it is costly and takes a long time to deliver, and there are descriptions and suggestions on the durability of the label against heat, solvents and external forces. It has not been.
In addition, the laminate for brittle laser printing (corresponding to the brittle label of the present application) is a colored resin layer that can be removed by laser light irradiation, and is laminated on the colored resin layer, and has a visible color difference from the colored resin layer. A laser-printable laminate comprising a colored breaking layer and an adhesive layer laminated on the colored breaking layer, wherein the colored breaking layer is a cross-linked acrylic resin containing a glycol compound and is peeled after being adhered to an adherend. What destroys a coloring destruction layer is known (for example, refer to patent documents 2). However, although it is suitable for printing individual information, there is a drawback that it requires a very expensive, dangerous and sophisticated handling method such as a laser transmitter.
In addition, the applicant also has an information protection label (corresponding to the brittle label of the present application), a label base material, a partial release agent layer, a forgery prevention means forming layer, and a first adhesive formed on the same plane. The adhesive, the second pressure-sensitive adhesive forming layer, and the release paper are laminated in this order, and the adhesive strength of the second pressure-sensitive adhesive is set stronger than that of the first pressure-sensitive adhesive (for example, see Patent Document 3). .) However, although the function of preventing fraud by information leakage, counterfeiting and tampering is good, there is no description or suggestion about the durability of the individual display and the label against heat, solvent and external force.

JP-A-1-23277 Japanese Patent Laid-Open No. 2007-21818 JP 2006-337616 A

  In order to solve the above-described problems, the present inventors have made extensive studies and have completed the present invention. Its purpose is to facilitate individual display of product management and quality assurance purposes, excellent physical and chemical durability to light, heat, solvents and external forces, and excellent security to prevent counterfeiting and alteration. It is to provide a brittle label and a manufacturing method thereof.

In order to solve the above-mentioned problems, the brittle label manufacturing method according to the invention of claim 1 is a brittle label manufacturing method, comprising: (1) a transfer foil base and one of the transfer foil bases A hard coat layer transfer foil preparation step for preparing a hard coat layer transfer foil in which a release layer, a hard coat layer, an ultraviolet absorbing layer, and an adhesive layer are laminated in this order on the surface, (2) a label substrate, and the label It has a receiving layer on one side of the base material, and a pattern-like release layer, an ultraviolet absorbing layer, a printing layer, and an adhesive layer are sequentially laminated on the other side of the label base material, and peels off to the adhesive layer A printing brittle label preparation step for preparing a brittle label for printing provided with release paper, and (3) an image is printed on the receiving layer of the brittle label for printing by an ink jet method and printed. An image forming process for forming a brittle label; (4) the printed brittle By superposing the adhesive layer surface of the hard coat layer transfer foil on the receiving layer surface on which the image of the label is formed and heating and pressurizing, the transfer foil base material and the release layer of the hard coat layer transfer foil are peeled off, whereby the image is obtained. A brittle label manufacturing method comprising: a hard coat layer transfer step of transferring an adhesive layer, an ultraviolet absorbing layer, and a hard coat layer to a formed receiving layer surface to form a brittle label.
The manufacturing method of the brittle label concerning invention of Claim 2 is replaced with the hard-coat layer of the said hard-coat layer transfer foil, and provides a hologram layer and a reflection layer, and a hard-coat layer transfer foil is a transfer foil base material. The method for producing a brittle label according to claim 1, wherein a release layer, a hologram layer, a reflective layer, an ultraviolet absorbing layer, and an adhesive layer are sequentially laminated on one surface of the transfer foil base material. is there.
The brittle label according to the invention of claim 3 has a label base material and a receiving layer on one side of the label base material, and an image is printed on the receiving layer by an ink jet method. A patterned release layer, an ultraviolet absorbing layer, a print layer, and an adhesive layer are laminated in this order on the surface, and an image of a printed brittle label on which release paper is provided to the adhesive layer is formed. The transfer foil base material, and the adhesive layer surface of the hard coat layer transfer foil in which a release layer, a hard coat layer, an ultraviolet absorption layer, and an adhesive layer are laminated in this order on one surface of the transfer foil base material after heating and pressing the laminated superposed bets, a brittle label, characterized in Rukoto has peeled it is removed the transfer foil base.
A card according to a fourth aspect of the invention is a card formed by attaching the brittle label according to the third aspect , wherein the image printed by the ink jet method includes at least a facial photograph, and the facial photograph and a hologram It is a card characterized by being overlapped and observed .

According to the present invention of claim 1, individual indications for product management and quality assurance purposes can be easily performed, and physical and chemical durability to light, heat, solvent and external force is excellent, and counterfeiting and alteration are possible. There is provided a method for manufacturing a brittle label having excellent security to prevent.
According to the second aspect of the present invention, in addition to the effect of the first aspect, since the hologram light diffraction image is also provided, a method for manufacturing a brittle label having higher security is provided.
According to the present invention of claim 3, a fragile label that can be easily displayed individually, has excellent physical and chemical durability to light, heat, solvent and external force, and has excellent security properties to prevent counterfeiting and alteration. Is provided.
According to the present invention of claim 4, individual display can be easily performed by an ink jet method, and a face photograph and a name image printed on the white background by the ink jet method are observed under the hologram (three-dimensional company emblem image). Card is provided.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a step diagram of the brittle label manufacturing method of the present invention.
FIG. 2 is a cross-sectional view of the hard coat layer transfer foil used in the present invention.
FIG. 3 is a sectional view of a brittle label for printing showing one embodiment of the present invention.
FIG. 4 is an explanatory diagram for transferring the hard coat layer transfer foil to the brittle label for printing.
FIG. 5 is a cross-sectional view of a brittle label showing one embodiment of the present invention.
FIG. 6 is a cross-sectional view of a hologram transfer foil showing one embodiment of the present invention.

(Manufacturing method of brittle label) As shown in FIG. 1, the manufacturing method of the brittle label according to the present invention includes (1) a transfer foil base 11 and a release layer 13 on one surface of the transfer foil base 11. A hard coat layer transfer foil preparation step (S1) for preparing a hard coat layer transfer foil 10 in which a hard coat layer 15, an ultraviolet absorbing layer 16 and an adhesive layer 19 are laminated in order, (2) a label substrate 21; The label substrate 21 has a receiving layer 27 on one surface, and a patterned release layer 23, an ultraviolet absorbing layer 26, a printing layer 28, and an adhesive layer 29 are sequentially stacked on the other surface of the label substrate 21. The brittle label printing step (S2) for preparing the brittle label for printing 20 provided with the release paper 31 so as to be peelable to the adhesive layer 29, (3) The brittle label for printing 20 The image 103 is printed on the receiving layer 27 of the ink jet method. And (4) an adhesive layer of the hard coat layer transfer foil 10 on the receiving layer 27 surface on which the image 103 of the printed brittle label is formed. The 19 surfaces are superposed and heated and pressed, and the transfer foil base material 11 and the release layer 13 of the hard coat layer transfer foil are peeled off, whereby the adhesive layer 19 and UV absorption are applied to the receiving layer 27 surface on which the image 103 is formed. It consists of four steps of 16 layers and the hard coat layer transfer process (S4) which transfers the hard coat layer 15 to the brittle label 30. The materials will be explained in order.

  (S1) The S1 step includes a transfer foil base material 11 as shown in FIG. 2, a release layer 13, a hard coat layer 15, an ultraviolet absorption layer 16 and an adhesive layer 19 on one surface of the transfer foil base material 11. This is a hard coat layer transfer foil preparation step for preparing a hard coat layer transfer foil 10 that is sequentially laminated.

  (Transfer foil base material) As a material of the transfer foil base material 11, the same base material as that used in the conventional transfer foil can be used as it is, and it is not particularly limited. Specific examples of the preferred transfer foil base material 11 include thin paper such as glassine paper, condenser paper or paraffin paper, polyester such as polyethylene terephthalate and polyethylene naphthalate, polypropylene, polycarbonate, cellulose acetate, polyethylene derivatives, polymethylpentene, and the like. Examples of such plastic stretched or unstretched films. Moreover, the composite film which laminated | stacked 2 or more types of these materials can also be used. Although the thickness of a base film can be suitably selected according to material so that the intensity | strength, heat resistance, etc. may become appropriate, the thing about 1-100 micrometers is normally used normally. The transfer foil base 11 may be subjected to easy adhesion treatment such as corona discharge treatment and primer (also referred to as an anchor coat, adhesion promoter, or easy adhesive) coating treatment on the coated surface prior to coating. The transfer foil base 11 may be applied to the transfer foil base 11 as necessary, for example, for the purpose of improving and modifying film properties, for example, a lubricant, a plasticizer, a filler, an antistatic agent, an antiblocking agent, a crosslinking agent, and an oxidation agent. Inhibitors, light stabilizers, colorants such as dyes and pigments, various plastic compounding agents and additives may be added.

  (Peeling layer) In order to improve the peelability at the time of transfer, a peeling layer 13 is provided, and if necessary, a release layer may be provided. Both the release layer and the release layer 13 are provided, And the release layer 13 can be separated to further improve transferability. After the transfer, the release layer 13 is transferred to the transfer target and has a function as a protective layer.

  The release layer 13 is generally a cellulose derivative such as cellulose acetate, an acrylic resin such as ethyl poly (meth) acrylate, a vinyl copolymer thermoplastic resin such as polyvinyl butyral, an unsaturated polyester resin, or polyurethane. It can be formed using a thermosetting resin such as a resin or an amino alkyd resin. The release layer 13 preferably contains a filler such as microsilica or polyethylene wax in order to improve the foil cutting property. The release layer may be obtained by dispersing or dissolving the above resin in a solvent, applying the coating to at least one part by a known coating method such as roll coating or gravure coating, and drying to form a coating film. The thickness of the release layer is usually about 0.1 μm to 5 μm, preferably about 0.5 μm to 2 μm.

  (Release layer) As the release layer provided as necessary, there are usually a release resin, a resin containing a release agent, a curable resin which is cross-linked by ionizing radiation, and the like. The release layer is formed by dispersing or dissolving the resin in a solvent, applying and drying by a known coating method such as roll coating or gravure coating, and baking at a temperature of about 150 ° C to 200 ° C. The thickness of the release layer is usually about 0.01 μm to 5.0 μm, preferably about 0.5 μm to 3.0 μm. When both the release layer and the release layer 12 are provided, they may be used in appropriate combinations. In this case, the release layer also transfers to the transfer target after transfer, and also has a function as a protective layer.

  (Hard Coat Layer) The hard coat layer 15 contains at least an ionizing radiation curable resin as a main component and, if necessary, includes polyethylene wax. The ionizing radiation curable resin is preferably (1) an isocyanate having three or more isocyanate groups in the molecule, and (2) at least one hydroxyl group and at least two (meth) acryloyloxy groups in the molecule. Using an ionizing radiation curable resin containing a urethane (meth) acrylate oligomer which is a reaction product of a polyfunctional (meth) acrylate having a polyhydric alcohol having at least two hydroxyl groups in the molecule, or (3) A wax may be included, applied, dried, and cured with ionizing radiation to form an ionizing radiation curable resin.

  (Formation of hard coat layer) The hard coat layer is formed by adding polyethylene wax to the above ionizing radiation curable resin, and if necessary, adding a photopolymerization initiator, a plasticizer, a stabilizer, a surfactant, etc., and dispersing in a solvent. Alternatively, it may be dissolved, applied by a known coating method such as roll coating, gravure coating, comma coating or die coating, dried, and reacted (cured) with ionizing radiation. The thickness of the hard coat layer is usually about 1 to 15 μm.

  (Ultraviolet absorbing layer) As the ultraviolet absorbing layer 18, if necessary, a composition containing an ultraviolet absorber such as benzotriazoles, benzophenones, substituted oxanilides, cyanoacrylates, or triaryltriazines in a binder. In addition, microsilica, curing agent, photopolymerization initiator, plasticizer, stabilizer, surfactant, etc. are added and dispersed or dissolved in a solvent, and then known coating methods such as roll coating, gravure coating, comma coating, die coating, etc. And drying, or aging (curing) treatment after drying, or reaction (curing) with ionizing radiation. By providing the UV absorbing layer, the light resistance of the image can be improved and the image can be maintained for a long time. The content ratio of microsilica in the ultraviolet absorbing layer 18 is ionizing radiation curable resin: microsilica = 90 to 94: 6 to 10 on a mass basis. If the content of the microsilica is less than this range, the foil sharpness at the time of transfer is poor, and if it exceeds this range, the transparency is lowered and the image becomes difficult to see.

  (Adhesive layer) As the adhesive layer 19, a heat-sensitive adhesive that melts or softens when heated and exhibits an adhesive effect can be applied. Specifically, a vinyl chloride resin, a vinyl acetate resin, or vinyl chloride. Examples thereof include vinyl acetate copolymer resins, acrylic resins, and polyester resins. The adhesive layer 19 preferably contains a filler such as microsilica in terms of the ability to break the foil. Further, the resin of the adhesive layer 19 is preferably one having a melting point of 60 to 95 ° C. which melts and adheres at a low temperature of about 95 ° C. and solidifies and adheres at about 60 ° C. When the melting point is less than the above range, the adhesiveness to the transfer medium is insufficient, and the temperature at which the formed image is used is limited. On the other hand, if the melting point exceeds the above range, the transferability becomes insufficient by heating with a thermal head, the foil breakability of the functional layer is lowered, and burrs are likely to occur.

  The preferred adhesive layer 19 contains a heat-adhesive polyester resin and microsilica, and the ratio of the heat-adhesive polyester resin and the microsilica is based on the mass of polyester resin: microsilica = 90 to 99: 1-10. If the content of the microsilica is less than the above range, the foil sharpness is poor, and if it exceeds the above range, the transparency is lowered and the image becomes difficult to see. The material resin is dissolved or dispersed in a solvent, an additive such as a pigment is added as appropriate, and it is applied and dried by a known method such as roll coating, gravure coating, comma coating, and the thickness is 0.1 to 30 μm. A layer with a degree, preferably 0.4-3 μm is obtained.

(Brittle Label for Printing) As shown in FIG. 3, the brittle label 20 for printing has a label substrate 21 and a receiving layer 27 on one surface of the label substrate 21, and the label substrate. A print in which a patterned release layer 23, an ultraviolet absorbing layer 26, a print layer 28, and an adhesive layer 29 are sequentially laminated on the other surface of 21, and release paper 31 is provided on the adhesive layer 29 so as to be peelable. This is a printing brittle label preparation step for preparing the brittle label 20 for printing.

  (Label Base Material) As the label base material 21, the same material as the transfer foil base material 11 can be used.

  (Receiving layer) The receiving layer 28 is on the outermost surface of the print label 20, and an image is printed and printed on the receiving layer 28 by an ink jet method. As the receiving layer 28, a resin excellent in friction resistance and transparency can be used as appropriate. Specifically, starch and modified products thereof, polyvinyl alcohol and modified products thereof, polyvinyl saponified product, carboxymethyl cellulose, fiber-based resin, polyester-based resin, vinyl chloride-vinyl acetate copolymer, polystyrene-based resin, acrylic resin Resins, polyurethane resins, acrylic urethane resins, silicone-modified resins of these resins, polycarbonate resins, and mixtures of these resins, SBR (butadiene styrene rubber) latex, NBR (butadiene acrylonitrile rubber) latex, hydroxycellulose, polyvinylpyrrolidone And organic substances such as microsilica.

  The content ratio of the microsilica is 0.1 to 20 parts by mass, preferably 1 to 10 parts by mass with respect to 100 parts by mass of the resin content of the receiving layer 27. Further, by containing microsilica, the ink can be absorbed and fixed quickly during ink jet printing, and it can be quickly dried, so that it can be transferred to the next process quickly. Further, in the process, even if it comes into contact with a machine, a jig, or another object, it is difficult to be damaged, and even if it is processed in a long shape and wound up, a blocking phenomenon in which the front and back are in close contact with each other is less likely to occur.

  (Pattern Release Layer) In order to improve the releasability at the time of transfer, a pattern release layer 23 is provided, and if necessary, a release layer may be provided, and both the release layer and the release layer 13 are provided. Transferability can be further improved by peeling between the release layer and the release layer 13. As the patterned release layer 23, the same material as the release layer 13 of the hard coat layer transfer foil 10 can be used. However, the patterned release layer 23 is provided in a pattern by a printing method such as gravure printing or screen printing. The pattern is not particularly limited, and examples thereof include a regular pattern and a random camouflage pattern.

  (Ultraviolet absorbing layer) The ultraviolet absorbing layer 21 may be the same as the ultraviolet absorbing layer 18 of the hard coat layer transfer foil 10.

  (Printing layer) The printing layer 28 may be a known printing method such as offset printing, gravure printing, and siclean printing, and may be a known ink.

  (Adhesive layer) As the adhesive layer 29, a pressure-sensitive adhesive that adheres with a known pressure sensitivity can be applied. The pressure-sensitive adhesive is not particularly limited. For example, natural rubber, synthetic rubber resin such as styrene-butadiene copolymer resin, silicone resin, acrylic resin, vinyl acetate resin, urethane resin, acrylonitrile. Hydrocarbon resins and rosin resins can be applied. These resins or a mixture thereof may be printed, applied, or dried as a latex, aqueous dispersion, or organic solvent liquid by a known printing or coating method such as screen printing or comma coating. Moreover, the adhesive force and cohesive force of an adhesive can be suitably selected according to a use and object. In the case of observing from the back surface of the transfer target, transparent, semi-transparent, colored transparent, etc. are preferable so that the image can be read.

  (Release paper) The release paper 31 (also referred to as a separate paper or a separate paper) has a release layer on one side of a base material such as high-quality paper, coated paper, impregnated paper, or plastic film. The release layer is not particularly limited as long as it has a release property, and examples thereof include silicone resins, organic resin-modified silicone resins, fluororesins, aminoalkyd resins, and polyester resins. These resins can be used in any of emulsion type, solvent type and solventless type.

  (S3) Step S3 is an image forming process in which the image 103 is printed on the receiving layer 27 of the brittle label 20 for printing by an ink jet method to form a brittle label with print.

  (Printing) As for printing on the receiving layer 27, ink jet printing by the ink jet method can be applied to printing of a large variety of small lots, and can correspond to printing of one lot per sheet by variable information. The ink jet method may be a known method, which may be monochromatic, multicolor, or color photographic, and water-based or oil-based inks can be applied.

  (Inkjet system) The inkjet system is not particularly limited, and may be a known system such as a bubble jet (registered trademark) system, a pulse jet system, or a charge control system. The color of the image is not particularly limited, and may be any color, single color, or multicolor. The pattern of the image is not particularly limited, and may be any character, symbol, number, illustration, photograph or the like.

  (S4) In step S4, the adhesive layer 19 surface of the hard coat layer transfer foil 10 is superposed on the surface of the receiving layer 27 on which the printed brittle label image 103 is formed, and heated and pressed to form the hard coat layer. By peeling the transfer foil substrate 11 of the transfer foil 10, the adhesive layer 19, the ultraviolet absorbing 16 layer, the hard coat layer 15, and the release layer 13 are transferred to the surface of the receiving layer 27 on which the image 103 is formed. This is a hard coat layer transfer process for forming the label 30.

  (Transfer) Next, as shown in FIG. 4, the adhesive layer 19 surface of the hard coat layer transfer foil 10 is overlaid on the receiving layer 27 of the brittle label 20 for printing and thermally transferred. The thermal transfer method is not particularly limited. For example, if the transfer foil substrate 11 is peeled and removed after pressure bonding with a heating flat plate or a heating roll, a brittle label 30 is obtained as shown in FIG.

  (With hologram) The hard coat layer transfer foil 10 described above may be a hologram transfer foil 10A as shown in FIG. 6, and instead of the hard coat layer 15 of the hard coat layer transfer foil 10, a hologram layer 35 and a reflective layer 37 are used. By providing the transfer foil substrate, a release layer, a hologram layer, a reflective layer, an ultraviolet absorption layer, and an adhesive layer are sequentially laminated on one surface of the transfer foil substrate, and the transfer foil substrate 11 / release layer 13 / hologram layer 35 / reflection layer 37 / ultraviolet absorption layer 16 / adhesion layer 19. The hologram layer 35 is made of the same material as the hard coat layer 15 and can exhibit the same protective function.

  (Hologram Layer) The hologram layer 35 may contain a cured product of ionizing radiation curable resin, reactive silicone, and polyethylene wax as required. By doing in this way, it can be set as the hologram which was excellent in the design property which has the heat resistance which does not whiten with heat | fever after ionizing-radiation hardening, and the followable | trackability to expansion and contraction, and there is little fall of hologram effects, such as a crack and whitening. As the ionizing radiation curable resin, for example, an epoxy-modified acrylate resin, a urethane-modified acrylate resin, an acrylic-modified polyester, and the like can be applied, and a urethane-modified acrylate resin is preferable. The hologram layer 35 is obtained by dispersing or dissolving the above resin and, if necessary, an additive in a solvent, applying at least a part by a known coating method such as roll coating or gravure coating, and drying to form a coating film. It may be formed. The thickness of the hologram layer 35 is usually about 1 μm to 30 μm.

  (Hologram) Next, on the surface of the hologram layer 35, a predetermined relief structure that exhibits a light diffraction effect, such as a hologram, is heated as a press die (referred to as a stamper) by an appropriate means such as a heating roll. What is necessary is just to shape by a well-known method, such as a press method, and to cure by irradiating with ionizing radiation such as ultraviolet (UV). The hologram is a recording of interference fringes due to the interference between the object beam and the reference beam in an uneven relief shape, such as a Fresnel hologram, a rainbow hologram, a computer generated hologram (CGH), a holographic diffraction grating, etc. There is. The relief shape is a concavo-convex shape, and is not particularly limited, and may have a fine concavo-convex shape such as light diffusion, light scattering, light reflection, light diffraction, etc., such as Fourier transform or lenticular lens. , A light diffraction pattern, and a moth eye. Further, although it does not have a light diffraction function, it may be a hairline pattern, a mat pattern, a line pattern, an interference pattern, or the like that expresses a unique glitter.

(Reflection layer) The reflection layer 37 is provided on the relief surface of the hologram layer 35 provided with a predetermined relief structure, thereby enhancing the reflection and / or diffraction effect of the relief. There is no particular limitation as long as there is a difference from the reflectance of the hologram layer 35. Examples thereof include metal thin films and oxides or nitrides of metal layers. For example, Al, ZnS, and TiO ₂ can be exemplified, and a transparent reflective layer that can be observed from a non-stick surface on an adherend is preferable. The reflective layer 37 may be formed by a vacuum thin film method such as vapor deposition, sputtering, ion plating, or CVD so as to have a thickness of about 20 to 1000 nm.

  (Brittle label) The brittle label 30 thus obtained has a structure as shown in FIG. 5, and is suitably made into a single sheet, cut from a roll, or half-cut the label portion on the release paper. It may be attached to a material to be adhered (not shown) in a temporary form. Further, the hard coat layer transfer foil 10 and the brittle label 20 for printing are transferred in advance to increase the thickness, thereby improving the labeling suitability. The material to be adhered 101 is not particularly limited, and various materials and shapes can be applied depending on the application, for example, any of paper, plastics, glass, metal, ceramics, wood, cloth, etc. There are film shapes, board shapes, and molded products. Further, at least a part of the medium of the adherend 101 may be colored, printed, or otherwise decorated.

  (Durability) The brittle label 30 of the present invention produced by the method for producing a brittle label of the present invention protects the printed portion by covering the printed portion with the ultraviolet absorbing layer 16 and the ultraviolet absorbing layer 26, such as ultraviolet rays. Fading is prevented from light, and the surface is covered with the hard coat layer 15 or the hologram layer 35 to impart physical and chemical durability such as external force and solvent.

  (Security) Further, when the label integrated with the adherend 101 is peeled off from the adherend 101, the pattern portion of the pattern-like release layer 23 is peeled, and there is no pattern. Since the portion does not peel off, it cannot be removed cleanly and is destroyed unevenly, so that deliberate peeling can be determined, and it is excellent in security to prevent alteration and reattachment.

  (Manufacturing) Also, according to the method for manufacturing a brittle label of the present invention, individual display for the purpose of managing people and products and quality assurance is an inkjet system, so it is easy to use variable information for each item on demand. Can be printed.

  EXAMPLES Hereinafter, although an Example and a comparative example demonstrate this invention further in detail, it is not limited to this. In addition, except a solvent, each composition of each layer is a mass part of solid content conversion.

Example 1
(Preparation of Hard Coat Layer Transfer Foil) Using a PET film having a thickness of 25 μm as the transfer foil base material 11, the following release layer resin composition (coating solution) was applied to one surface of the base material 11 by a roll coating method. ) Was applied to a thickness of 1 μm after drying and dried to form a release layer 13.
・ <Resin layer resin composition>
Peeling varnish 45-3 (acrylic resin, trade name, manufactured by Showa Ink Co., Ltd.) 10 parts by mass Microsilica (average particle size 0.5 μm) 0.5 parts by mass Solvent (MEK: toluene = 1: 1) 90 parts by mass The surface of the release layer 13 is coated with the following ionizing radiation curable resin composition with a gravure reverse coater so that the thickness after drying is 5 μm, dried at 100 ° C., and irradiated with ultraviolet rays using a high-pressure mercury lamp. And hardened to form a hard coat layer 15.
・ <Ionizing radiation curable resin composition of hard coat layer>
Iupimer UV-V3031 (manufactured by Mitsubishi Chemical Co., Ltd., UV curable resin trade name) 100 parts by mass Polyethylene wax (average particle size 3 to 5 μm, spherical) 2 parts by mass Photopolymerization initiator (Ciba, trade name Irgacure 184) 5 300 parts by weight of ethyl acetate 300 parts by weight Next, after applying and drying to the surface of the hard coat layer 15 by gravure coating with a primer layer composition working solution having the following composition to a thickness of 0.5 μm when dried Aging was performed at 45 ° C. for 24 hours to form a primer layer.
・ <Primer layer composition working solution>
Polyester resin 10 parts Vinyl chloride-vinyl acetate copolymer 10 parts Toluene 40 parts Methyl ethyl ketone 40 parts Next, the following ultraviolet absorbing layer composition is applied onto the primer layer surface so that the coating amount after drying with a gravure coater is 4 μm. The coated layer was dried at 100 ° C. and aged at 50 ° C. for 1 week to form an ultraviolet absorbing layer 16.
・ <UV absorbing layer composition>
UVA-C11 (trade name of UV-absorbing crosslinkable resin manufactured by Showa Ink Co., Ltd.) 25 parts by mass Microsilica (average particle size 0.5 μm) 2 parts by mass Solvent (MEK: toluene = 1: 1) 73 parts by mass The following adhesive layer composition was applied to the surface of the ultraviolet absorbing layer 16 with a gravure coater so that the coating amount after drying was 1 μm, and dried at 100 ° C. to form an adhesive layer 19.
・ <Adhesive layer composition>
Polyester resin SP170 (manufactured by Nippon Synthetic Chemical Co., Ltd., trade name) 20 parts by mass Microsilica (average particle size 0.5 μm) 1.5 parts by mass Solvent (MEK: toluene = 1: 1) 78.5 parts by mass As described above Thus, the hard coat layer transfer foil 10 in which the transfer foil base material 11 / the release layer 13 / the hard coat layer 15 / the ultraviolet absorbing layer 16 / the adhesive layer 19 were laminated in order was obtained.

(Preparation of brittle label for printing) A PET film having a thickness of 50 μm is used as the label substrate 21, and the following primer layer composition is applied to one surface of the substrate 21 with a gravure coater and dried. Was applied to be 0.5 g / m 2 and dried to form a primer layer.
・ <Primer layer composition working solution>
Polyester resin 10 parts by mass Vinyl chloride-vinyl acetate copolymer 10 parts by mass Microsilica (average particle size 0.5 μm) 1 part by mass solvent (MEK: toluene = 1: 1) 80 parts by mass To the primer layer surface, the following The receptor layer composition (pH = 3.5) was coated with a gravure reverse coater so that the thickness after drying was 5 μm and dried to obtain receptor layer 27.
・ <Receptive layer composition>
Quaternary ammonium salt type polycarbonate-based polyurethane 20 parts by mass Dunfix 505RE (manufactured by Nitto Boseki Co., Ltd .; polycationic fixative) 2 parts by mass Microsilica (average particle size 0.5 μm) 1 part by mass Solvent (water) 80 parts by mass Next, a camouflage pattern is printed on the surface of the label base 21 opposite to the receiving layer 27 by gravure printing so that the following release layer resin composition (coating solution) is dried to 1 μm. It dried and the pattern-like peeling layer 23 was formed.
・ <Resin layer resin composition>
Peeling varnish 45-3 (acrylic resin, trade name, manufactured by Showa Ink Co., Ltd.) 10 parts by mass microsilica (average particle size 0.5 μm) 0.5 parts by mass solvent (MEK: toluene = 1: 1) 90 parts by mass In addition, the following ultraviolet absorbing layer composition was applied to the surface of the patterned release layer 23 with a gravure coater so that the coating amount after drying was 4 μm, dried, and aged at 50 ° C. for 1 week, An ultraviolet absorbing layer 26 was formed.
・ <UV absorbing layer composition>
UVA-C11 (manufactured by Showa Ink Co., Ltd., trade name of ultraviolet-absorbing crosslinkable resin) 25 parts by mass microsilica (average particle size 0.5 μm) 2 parts by mass solvent (MEK: toluene = 1: 1) 73 parts by mass A known white ink was printed on the surface of the ultraviolet absorbing layer 26 by gravure printing so that the coating amount after drying was 1 μm and dried to form a printed layer 28.
An acrylic pressure-sensitive adhesive is applied to the surface of the printed layer 28 with a comma coater so as to have a coating amount of 40 g / m 2 after drying, and is then dried to form an adhesive layer 29. A release paper 31 is formed on this surface with a thickness of 38 μm. PET separator paper was provided so as to be peelable.
In this way, the brittle label 20 for printing in which the receiving layer 27 / label base material 21 / patterned release layer 23 / ultraviolet absorption layer 26 / printing layer 28 / adhesive layer 29 / release paper 31 are provided in this order. Obtained.

  With the printing brittle label 20 in the form of a roll, an image 103 was formed by printing a face photograph and a name on the surface of the receiving layer 27 using a pigment-based ink by an inkjet printing method. The adhesive layer 19 of the hard coat layer transfer foil 10 previously produced was placed on the printed receiving layer 27 surface and pressed with a heating roll, and the transfer foil base material 11 was peeled off and removed. Thus, the brittle label 30 in which the adhesive layer 19 / ultraviolet absorption 16 layer / hard coat layer 15 / release layer 13 was transferred to the surface of the receiving layer 27 on which the image 103 was formed was obtained.

(Example 2)
(Preparation of Hologram Transfer Foil) A hologram transfer foil 10A of Example 2 was obtained in the same manner as in Example 1 except that the hologram layer 35 and the reflective layer 37 were provided in place of the hard coat layer 15.
As the hologram layer 35, the following ionizing radiation curable resin composition was applied and dried by a gravure reverse coater so that the thickness after drying was 5 μm.
・ <Ionizing radiation curable resin composition of hologram layer>
Iupimer UV-V3031 (Mitsubishi Chemical Co., Ltd., UV curable resin trade name) 100 parts by mass Reactive silicone (Shin-Etsu Chemical Co., Ltd., trade name X-22-1602) 0.5 parts by mass Polyethylene wax (average particle size 3 to 3) 5 μm, spherical) 2 parts by weight Photopolymerization initiator (trade name Irgacure 184, manufactured by Ciba) 5 parts by weight Ethyl acetate 300 parts by weight Next, from the hologram by a two-beam interference method of a three-dimensional company emblem, 2P Duplicate a press mold that has been reproduced by the law (relief that reproduces a three-dimensional company emblem image) and a hologram mark for each pattern to form a pair, and the pair is sequentially arranged in the flow direction of the duplication. It stuck on the embossing roller of the apparatus, and it heat-pressed (embossed) between the opposing rollers, and formed the relief which consists of a fine uneven | corrugated pattern. Immediately after the shaping, the hologram layer 35 was formed by curing by irradiating with ultraviolet rays using a high-pressure mercury lamp.
The relief surface of the hologram layer 35 was subjected to corona treatment, and titanium oxide having a thickness of 500 nm was formed by a vacuum deposition method to form a reflective layer 37.

  While the brittle label for printing 20 of Example 1 was in the form of a roll, a face photograph and a name were printed on the surface of the receiving layer 27 using a pigment-based ink by an ink jet printing method to form an image 103. The adhesive layer 19 of the hologram transfer foil 10A of Example 2 was overlapped on the printed receiving layer 27 surface and pressed with a heating roll, and the transfer foil base material 11 was peeled off and removed. Thus, the brittle label 30 in which the adhesive layer 19 / ultraviolet absorption 16 layer / reflective layer 37 / hologram layer 35 / release layer 13 was transferred to the surface of the receiving layer 27 on which the image 103 was formed was obtained. The brittle label 30 was cut to 25 × 35 mm and attached to a credit card-sized employee ID card made of polyvinyl chloride. Under the hologram (three-dimensional corporate emblem image), a face photograph printed on a white background by an ink jet method and a clear image of the name were observed. Further, when the brittle label 30 was forcibly removed, it was peeled off from the pattern-like release layer 23 and could not be reused.

It is a step figure of the manufacturing method of the brittle label of the present invention. It is sectional drawing of the hard-coat layer transfer foil used for this invention. It is sectional drawing of the brittle label for printing which shows one Example of this invention. It is explanatory drawing which transcribe | transfers a hard-coat layer transfer foil to the brittle label for printing. It is sectional drawing of the brittle label which shows one Example of this invention. It is sectional drawing of the hologram transfer foil which shows one Example of this invention.

Explanation of symbols

10: Hard coat layer transfer foil 10A: Hologram transfer foil 11: Transfer foil base material 13: Release layer 15: Hard coat layer 16: Ultraviolet absorption layer 19: Adhesive layer 20: Brittle label for printing 21: Label base material 23: Release layer (pattern shape)
26: UV absorbing layer 27: Receptive layer 28: Print layer 30: Brittle label 31: Release paper 35: Hologram layer 37: Reflective layer 101: Adhering material

Claims (4)

A method of manufacturing a brittle label,
(1) A hard coat layer for preparing a transfer foil base material and a hard coat layer transfer foil in which a release layer, a hard coat layer, an ultraviolet absorbing layer, and an adhesive layer are sequentially laminated on one surface of the transfer foil base material A transfer foil preparation process;
(2) A label base and a receiving layer on one side of the label base, and a patterned release layer, an ultraviolet absorbing layer, a printing layer, and an adhesive layer on the other side of the label base in order A printing brittle label preparation step for preparing a printing brittle label that is laminated and provided with a release paper so as to be peelable to the adhesive layer;
(3) An image forming step of printing an image on the receiving layer of the brittle label for printing by an ink jet method to form a printed brittle label;
(4) The adhesive layer surface of the hard coat layer transfer foil is superimposed on the receiving layer surface on which the image of the printed brittle label is formed and heated and pressed, and the transfer foil base material and release layer of the hard coat layer transfer foil A hard coat layer transfer step to transfer the adhesive layer, the ultraviolet absorbing layer, and the hard coat layer to the receiving layer surface on which an image is formed to form a brittle label,
A method for producing a brittle label, comprising:   Instead of the hard coat layer of the hard coat layer transfer foil, a hologram layer and a reflective layer are provided, so that the hard coat layer transfer foil has a transfer foil base material, a release layer, a hologram on one surface of the transfer foil base material 2. The method for producing a brittle label according to claim 1, wherein a layer, a reflective layer, an ultraviolet absorbing layer, and an adhesive layer are sequentially laminated. A label substrate, and a receiving layer on one side of the label substrate, an image is printed on the receiving layer by an ink jet method, and a patterned release layer and an ultraviolet absorbing layer are formed on the other side of the label substrate. The receiving layer surface on which an image of a printed brittle label is formed, in which a printing layer and an adhesive layer are sequentially laminated, and a release paper is provided to be peelable to the adhesive layer.
Heating the transfer foil base material and the adhesive layer surface of the hard coat layer transfer foil in which a release layer, a hard coat layer, an ultraviolet absorbing layer, and an adhesive layer are sequentially laminated on one surface of the transfer foil base material after pressing the laminated, brittle label characterized that you have been removed by peeling off the transfer foil base. A card formed by attaching the brittle label according to claim 3 ,
The image printed by the inkjet method includes at least a facial photograph;
A card characterized in that the face photograph and a hologram are observed in an overlapping manner .

Images