JP5233232B2 - Transfer foil, transferred material and method for producing the same - Google Patents

Description

  The present invention relates to a transfer technique for transferring a transfer material layer from a base material onto an article.

  It is desired that counterfeiting is difficult for authentication media such as cash cards, credit cards and passports, and securities media such as gift certificates and stock certificates. Therefore, conventionally, a label that is difficult to forge is attached to such a medium in order to prevent the forgery.

  In recent years, the distribution of counterfeit products has been regarded as a problem for articles other than authentication media and securities media. Therefore, the opportunity to apply the above-described anti-counterfeiting technology for authentication media and securities media to such articles is increasing.

The forgery prevention technology can be classified into an overt technology and a covert technology.
The overt technique is an anti-counterfeiting technique that allows a general user to easily recognize application to an article and easily determine whether it is authentic. In a typical overt technique, a diffractive structure such as a hologram or a multilayer interference film such as Optically Variable Ink (OVI) is used.

  The covert technique is an anti-counterfeiting technique aimed at making it possible for only a specific user who knows the application of the covert technique to an article to make an authenticity determination because it is difficult for a general user to apply to the article. Typical covert techniques use fluorescent printing or line moire.

  Patent Document 1 describes another covert technique. In this covert technique, a display body including a reflective layer, an alignment film, and a birefringent layer made of a polymer liquid crystal material is used. The birefringent layer includes two portions having different slow axis directions. These two parts are impossible or difficult to distinguish from each other with the naked eye, and can be easily distinguished from each other by observing through a polarizing film. That is, these two portions form a latent image that is visualized by observing through a polarizing film.

  By the way, this display body is utilized in the form of, for example, an adhesive label or a transfer foil. When used in the form of a transfer foil, the display can be made thinner than when used in the form of an adhesive label. If the display body is thinned, the display body attached to the article can be easily broken when it is peeled off. That is, it is possible to make it impossible to reuse the display body. Therefore, the display body is often in the form of a transfer foil, particularly when used for the purpose of preventing forgery.

However, the polymer liquid crystal material has high strength. Therefore, when the transfer material layer of the transfer foil is partially transferred from the substrate onto the article, the transfer material layer is at the boundary between the heat and pressure application part and the non-application part when the substrate is peeled from the article. It does not break easily and requires a large force to peel off the substrate. In addition, a transfer material layer containing a polymer liquid crystal material is liable to cause defects such as burrs and chips when transferred from a substrate onto an article.
JP-A-8-43804

  It is an object of the present invention to enable a substrate to be peeled off with a smaller force when a transfer material layer containing a polymer liquid crystal material is partially transferred from a substrate to an article, The object is to provide a technique that makes it difficult to cause defects.

According to the first aspect of the present invention, a transfer material layer comprising a base material, a birefringent layer facing the base material and containing a polymer liquid crystal material, and releasably supported by the base material, and the transfer An adhesive layer coated with a material layer, wherein the transfer material layer has a display area in which a latent image is recorded on the birefringent layer and is transferred from the substrate to the transfer target, and the display A rupture start which is a starting point of rupture when transferring the display area out of the edging area. The transfer foil is characterized in that the mesogenic group of the polymer liquid crystal material is oriented in a direction crossing the peeling direction of the display region.

According to a second aspect of the present invention, a transfer material layer comprising a base material, a birefringent layer facing the base material and containing a polymer liquid crystal material, and releasably supported by the base material, and the transfer An adhesive layer covering the material layer, and the transfer material layer includes a display area in which a latent image is recorded in the birefringent layer, and a border area bordering the display area, A transfer foil is provided in which the mesogenic groups of the polymer liquid crystal material are aligned along the outline of the display region over the entire periphery of the display region in the border region .

  According to a third aspect of the present invention, an article as a transfer object, and affixed on the article by transfer using the transfer foil according to the first side, including the display area and a part of the border area. There is provided a transcript comprising the display body.

According to a fourth aspect of the present invention, a display body and an article supporting the display body are provided, and the display body includes a birefringent layer containing a polymer liquid crystal material and the birefringent layer. a display area where a latent image is recorded on, the display includes a border area that bordering regions, mesogenic groups of the polymer liquid crystal material at said edging region is the display over the entire periphery of the display region A transcript is provided that is oriented along the contour of the region .

  According to a fifth aspect of the present invention, there is provided a method of producing a transfer product by transfer using a transfer foil, wherein the transfer foil is a birefringence containing a base material, the base material facing the base material, and containing a polymer liquid crystal material A transfer material layer that is releasably supported on the base material, and an adhesive layer that covers the transfer material layer. The transfer material layer records a visible image and / or a latent image. The transfer foil and the transfer foil so that the display area faces the transfer target body with the adhesive layer interposed therebetween. Placing the transfer object, applying heat and pressure from the base material side to the display area and the portion of the border area adjacent to the display area to adhere them to the transfer object; By separating the transfer foil and the transfer object from each other, A break along the outline of the display area in the edging area, and peeling the display area from the substrate, wherein the rupture start portion and / or the rupture starting point of the rupture in the edging area is included. The transfer foil and the transfer target are separated from each other so that the orientation direction of the mesogenic group of the polymer liquid crystal material intersects with the peeling direction of the display region at the end of the break which is the end point A method of manufacturing an article is provided.

  According to the present invention, when a transfer material layer containing a polymer liquid crystal material is partially transferred from a base material onto an article, the base material is peeled off with a smaller force, or defects such as burrs and chips occur. It becomes possible to make it difficult.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same referential mark is attached | subjected to the component which exhibits the same or similar function through all the drawings, and the overlapping description is abbreviate | omitted.

  FIG. 1 is a plan view schematically showing a transfer foil according to one embodiment of the present invention. FIG. 2 is an enlarged plan view showing a part of the transfer foil shown in FIG. FIG. 3 is a cross-sectional view taken along line III-III of the transfer foil shown in FIG. FIG. 4 is a plan view schematically showing the alignment state of mesogenic groups of the polymer liquid crystal material included in the transfer foil shown in FIG.

  In FIG. 4, a reflective layer described later is omitted. Moreover, in FIG. 4, the arrow has shown the orientation direction of the mesogenic group mentioned later.

  The transfer foil 10 shown in FIGS. 1 to 4 has a length direction parallel to the X direction, a width direction parallel to the Y direction orthogonal to the X direction, and a thickness direction orthogonal to the X direction and the Y direction. It has a strip shape parallel to the Z direction. Here, as an example, the peeling direction described later is assumed to be parallel to the X direction.

  As shown in FIG. 3, the transfer foil 10 includes a base material 110, a transfer material layer 120, and an adhesive layer 130.

  The base material 110 is, for example, a film or sheet made of resin. The substrate 110 may have a single layer structure or a multilayer structure. As a material of the substrate 110, for example, polyethylene terephthalate (PET), polyethylene naphthalate, polypropylene, polyethersulfone, or polyimide can be used.

  When employing a multilayer structure for the substrate 110, the substrate 110 may include a release layer that can be used for adjusting the peeling resistance as the outermost surface layer on the transfer material layer 120 side. As a material for the release layer, for example, a thermosetting resin using melamine or isocyanate as a curing agent, an ultraviolet ray or an electron beam curable resin containing an acrylate or an epoxy resin, and a fluorine-based or silicon-based monomer as a release agent Or what added a polymer can be used.

  A transfer material layer 120 is formed on the substrate 110. The transfer agent layer 120 includes a peeling protective layer 1201, a birefringent layer 1202, a diffraction structure forming layer 1203, a reflective layer 1204, and a mask layer 1205. Each of the peeling protective layer 1201, the diffraction structure forming layer 1203, the reflective layer 1204, and the mask layer 1205 can be omitted.

  The peeling protective layer 1201 plays a role of stabilizing the peeling of the transfer agent layer 120 from the substrate 110 and protecting the birefringent layer 1202 after transfer. As a material for the peeling protection layer 1201, for example, a thermoplastic resin such as acrylic resin, styrene resin, nitrified cotton, and cellulose acetate, a curable resin such as an ultraviolet curable acrylic resin, and a baked melamine resin can be used. The peeling protective layer 1201 can be formed on the substrate 110 using a coater such as a gravure coater, a micro gravure coater, or a roll coater.

  For example, a lubricant such as polyethylene wax and zinc stearate may be added to the peeling protective layer 1201. This improves the wear resistance of the peel protection layer 1201.

  The birefringent layer 1202 contains a polymer liquid crystal material. The birefringent layer 1202 includes a plurality of regions having birefringence. Each region serves as a retardation layer, for example. Some of these regions and others are different in refractive index anisotropy and / or slow axis direction, and are typically indistinguishable from each other when observed with the naked eye. A possible or difficult latent image is formed.

The birefringent layer 1202 is formed by the following method, for example.
First, an alignment process such as a photo-alignment process or a rubbing process is performed on the layer used as the base of the birefringent layer 1201. Thereby, a plurality of regions for orienting mesogenic groups in different directions are formed on the underlying surface.

  The photo-alignment process is an alignment process in which the base of the birefringent layer 1201 is irradiated with polarized light or non-polarized light obliquely to induce rearrangement of molecules in the base or an anisotropic chemical reaction. . That is, according to the photo-alignment treatment, anisotropy is given to the base by an optical method, and the orientation direction of the mesogenic group is controlled by this anisotropy.

  For photo-alignment treatment, photoisomerization reaction of azobenzene derivatives, photodimerization or crosslinking reaction of cinnamate ester, coumarin, chalcone and benzophenone, or photodecomposition reaction of polyimide or the like can be used. That is, when performing photo-alignment treatment, typically, an alignment film made of a material that causes these reactions is first formed as a base. This alignment film can be formed using, for example, a coating method such as a gravure coating method and a micro gravure coating method.

  Next, the alignment film is subjected to first exposure for irradiating the first polarized light through the photomask, and then the second polarized light having a polarization plane different from that of the first polarized light is irradiated through the other photomask. Two exposures are performed. Alternatively, the alignment film is subjected to a first exposure in which non-polarized light is irradiated from a first oblique direction through a photomask, and then the first oblique direction is orthogonally projected onto the irradiated surface through another photomask. Second exposure is performed to irradiate non-polarized light from a second oblique direction with different directions. In this way, in the birefringent layer 1201, the mesogenic groups can be oriented in different directions in the region adjacent to the portion subjected to the first exposure and the region adjacent to the portion subjected to the second exposure.

  An optical rotator can be used when forming a plurality of portions in which mesogenic groups are oriented in different directions, or when changing the orientation direction of mesogenic groups continuously. For example, when linearly polarized light is incident on the optical rotator, the angle formed by the plane of polarization of the incident light and the plane of linearly polarized light emitted from the optical rotator changes according to the thickness of the optical rotator. For example, the quartz Z plate has an optical rotation ability of 21.7 ° / mm. Therefore, for example, when linearly polarized light is irradiated through a quartz crystal Z plate including a plurality of portions having different thicknesses, a plurality of portions for aligning mesogenic groups in different directions can be formed. Further, when linearly polarized light is irradiated through a quartz crystal Z plate including a portion where the thickness is continuously changed, the orientation direction of the mesogenic group can be continuously changed.

  The rubbing process is an alignment process in which the surface of the resin layer as a base is rubbed with a rubbing cloth. When the rubbing treatment is performed, the properties of the surface of the resin layer change. As a result, the orientation direction of the mesogenic group is controlled to be approximately equal to the rubbing direction.

  When performing the rubbing process, first, for example, an alignment film made of a resin is formed as a base. As this resin, for example, polyimide or polyvinyl alcohol can be used. Moreover, this alignment film can be formed using coating methods, such as a gravure coating method and a micro gravure coating method, for example.

  Next, the entire surface of the alignment film is rubbed in one direction with a rubbing cloth. Subsequently, the alignment film is covered with a mask, and this is rubbed in another direction with a rubbing cloth. Thereby, in the birefringent layer 1201, mesogenic groups can be oriented in different directions in a region adjacent to the portion covered with the mask and a region corresponding to the opening of the mask. In addition, when the outline of the opening of the mask includes a curve, if the rubbing process is performed along this curve, the orientation direction of the mesogen group can be continuously changed along the previous curve.

  The alignment film may be optically isotropic or optically anisotropic. In the latter case, the alignment film can be used as a part of the birefringent layer 1201. When the peeling protective layer 1201 is omitted, the outermost surface layer of the substrate 110 can be used as an alignment film.

  After finishing the alignment treatment described above, for example, a photocurable liquid crystal monomer having acrylates at both ends of the mesogenic group is applied onto the alignment film as the material of the birefringent layer 1202. As a material for the birefringent layer 1202, a material that is cured by irradiation with an electron beam or ultraviolet rays is used. The cured material may be a main chain type polymer liquid crystal material containing a mesogen group in the main chain, or a side chain type polymer liquid crystal material containing a mesogen group in a side chain.

  Then, if necessary, this is heat-treated at a temperature slightly lower than the phase transition temperature from the nematic phase to the isotropic liquid. In this way, the orientation of the mesogenic group can be promoted.

  Thereafter, the coating film is cured. As described above, the birefringent layer 1202 is obtained.

  On the birefringent layer 1202, a diffractive structure forming layer 1203 and a reflective layer 1204 are formed in this order. One main surface of the diffractive structure forming layer 1203 includes a convex pattern or a concave pattern. A region corresponding to the convex pattern or the concave pattern at the interface between the diffractive structure forming layer 1203 and the reflective layer 1204 forms a hologram or a diffraction grating as a diffractive structure.

  The hologram can be formed by the following method, for example. First, a relief master plate composed of a fine convex pattern or a concave pattern is produced by using an optical photographing method. Next, by using an electroplating method, a nickel press plate in which a concave pattern or a convex pattern is duplicated from the master plate is produced. Thereafter, the press plate is pressed against the diffractive structure forming layer 1203 while heating. Thereby, the convex pattern or the concave pattern is transferred to the diffractive structure forming layer 1203. Further, a reflective layer 1204 is formed on the diffractive structure forming layer 1203. As described above, a hologram can be formed.

The hologram can be formed by other methods. That is, first, the reflective layer 1204 is formed on the flat diffractive structure forming layer 1203. Next, the press plate is pressed against the reflective layer 1204 while being heated. Thereby, the convex pattern or the concave pattern is transferred to the reflective layer 1204 and the diffractive structure forming layer 1203. As described above, a hologram can be formed.
This type of hologram is called a relief hologram.

  The diffraction grating can be formed by a method similar to that described for the hologram, except that no optical imaging method is used. In the case of forming a diffraction grating, an image called a grating image or a dot matrix (pixelgram or the like) may be displayed by arranging a plurality of pixels each including a diffraction grating.

  As a material of the diffractive structure forming layer 1203, for example, a thermoplastic resin or a light or thermosetting resin can be used.

  The diffractive structure forming layer 1203 may be provided between the birefringent layer 1202 and the peeling protection layer 1201 instead of being formed on the birefringent layer 1202. In this case, a planarization layer that provides a flat base for the birefringent layer 1202 is typically provided between the diffractive structure forming layer 1203 and the birefringent layer 1202. The planarization layer may be the base of the alignment film or the alignment film itself.

  The reflective layer 1204 is, for example, a metal layer, an alloy layer, or a high refractive index layer. As a material for the metal layer, for example, aluminum, tin, silver, chromium, nickel, or gold can be used. As a material of the alloy layer, for example, a nickel-chromium-iron alloy, bronze, or aluminum bronze can be used. As a material for the high refractive index layer, for example, an inorganic dielectric such as titanium dioxide, zinc sulfide, and ferric trioxide can be used. As the reflective layer 1204, a dielectric multilayer film in which high refractive index layers and low refractive index layers are alternately stacked may be used.

  The reflective layer 1204 can be formed by, for example, vapor deposition, sputtering, or ion plating. The thickness of the reflective layer 1204 is, for example, in the range of about 10 nm to about 100 nm.

  The reflective layer 1204 can be formed as a layer patterned by using, for example, water-washed celite processing, etching processing, or laser processing. That is, the reflective layer 1204 may cover the entire diffractive structure forming layer 1203, or may cover only a part of the diffractive structure forming layer 1203.

  When water-washed celite processing is used, the reflective layer 1204 can be formed as a patterned layer by the following method. First, prior to the formation of the reflective layer 1204, a negative pattern of the reflective layer 1204 to be formed is formed on the diffraction structure forming layer 1203, for example, by printing using water washing ink. Next, the material of the reflective layer 1204 is deposited on the diffractive structure forming layer 1203 and the negative pattern. Thereafter, the water-washing ink is washed away with the material deposited thereon. As a result, a patterned reflective layer 1204 is obtained.

  When etching is used, the reflective layer 1204 can be formed as a patterned layer by the following method. First, the reflective layer 1204 is formed as a continuous film. Next, on the reflective layer 1204, a positive pattern of the reflective layer 1204 to be formed is formed on the diffraction structure forming layer 1203, for example, by printing using a masking agent. Next, the reflective layer 1204 is wet etched using the positive pattern as a mask. As a result, a patterned reflective layer 1204 is obtained.

When laser processing is used, the reflective layer 1204 can be formed as a patterned layer by the following method. First, the reflective layer 1204 is formed as a continuous film. Next, the reflective layer 1204 is partially irradiated with a laser beam, and the irradiated portion is removed. As the laser, for example, an Nd: YAG laser or a CO ₂ gas laser can be used.

  When there is a possibility that the diffractive structure forming layer 1203 or the like is deteriorated by the heat accompanying the formation of the reflective layer 1204, a heat resistant layer having higher heat resistance than this is provided on the diffractive structure forming layer 1203. A reflective layer 1204 may be formed thereon. The heat-resistant layer can be formed using, for example, a wet coating method such as a micro gravure method or a direct gravure method.

  The mask layer 1205 covers a portion of the reflective layer 1204 corresponding to the convex pattern or concave pattern of the diffractive structure forming layer 1203. For example, when the reflective layer 1204 is formed by etching a continuous film, the mask layer 1205 serves as an etching mask. Alternatively, the mask layer 1205 serves to make it difficult to reproduce the convex pattern or the concave pattern. As a material of the mask layer 1205, for example, a resin can be used. Note that when a thermoplastic resin is used as the material of the mask layer 1205, the mask layer 1205 can be used as a part of the adhesive layer 130.

  The transfer material layer 120 can further include other layers. For example, the transfer material layer 120 can further include a polarizing layer. As the polarizing layer, for example, a layer containing a dichroic dye oriented in one direction and serving as a linear polarizer, or a layer containing a cholesteric liquid crystal layer and exhibiting selective reflectivity can be used. .

  As shown in FIGS. 2 and 3, the transfer material layer 120 includes regions R1a, R1b, R2, and R3. In FIG. 2, a broken line B1a1b indicates a boundary between the region R1a and the region R1b. A broken line B1b2 indicates a boundary between the region R1b and the region R2. A broken line B23 indicates the boundary between the region R2 and the region R3.

  The region R1a and the region R1b constitute a display region. The region R2 is a border region that borders the display region. The region R3 is a peripheral region adjacent to the display region with the region R2 interposed therebetween. In this transfer foil 10, the structure shown in FIG. 2 is arranged in the X direction as shown in FIG.

  In the region R1a and the region R1b, are the mesogenic groups oriented in different directions and the thickness of the birefringent layer 1202 is equal, or the mesogenic groups are oriented in the same direction and the thickness of the birefringent layer 1202 is different? Or the mesogenic groups are oriented in different directions and the thickness of the birefringent layer 1202 is different. In the region R2, the mesogenic group is oriented in a direction crossing the X direction. In the region R3, the mesogenic group is not oriented or oriented in an arbitrary direction.

  In FIG. 4, as an example, the regions R1a and R1b have the same birefringent layer 1202 thickness, the mesogenic groups are oriented parallel to the X direction in the region R1a, and the mesogenic groups are aligned in the X direction in the region R1b. In the region R2, the mesogenic groups are oriented perpendicular to the X direction, and in the region R3, the mesogenic groups are oriented obliquely with respect to the X direction. .

  An adhesive layer 130 shown in FIG. 3 is formed on the transfer material layer 120. The adhesive layer 130 includes, for example, a heat-sensitive adhesive that develops tackiness when heat is applied. As the heat-sensitive adhesive, for example, thermoplastic resins such as acrylic resin, vinyl chloride-vinyl acetate copolymer, epoxy resin, and ethylene-vinyl alcohol copolymer can be used. The adhesive layer 130 is obtained, for example, by applying the above-described resin onto the transfer material layer 120 using a coater such as a gravure coater, a micro gravure coater, or a roll coater.

  The adhesive layer 130 may further contain a colorant. When the reflective layer 1204 is light transmissive or when the reflective layer 1204 is patterned, the visibility of the visualized latent image or the image displayed by the diffractive structure may be improved.

  FIG. 5 is a plan view schematically showing an example of a transfer product that can be manufactured using the transfer foil shown in FIG. 1.

  The transfer product 20 includes a display body 210 and an article 220 as a transfer target. In the example shown in FIG. 5, the transcript 20 is a card such as an ID (identification) card, a magnetic card, and a wireless card.

  The display body 210 includes a display region composed of the regions R1a and R1b described with reference to FIGS. 2 to 4 and a portion adjacent to the region R1b in the border region R2. The display body 210 is attached to the article 220 through a part of the adhesive layer 130 shown in FIG.

  Article 220 includes a plastic substrate in this example. This article 220 typically further includes a printed layer provided on a plastic substrate.

  The transcript 20 may be an authentication medium such as a cash card, a credit card, and a passport, or may be a securities medium such as a gift certificate or stock certificate. Alternatively, the transcript 20 may be a work of art, a craft, a tag, a packaging material, a toy, or a learning material.

  Article 220 may include other substrates such as paper, glass and metal instead of plastic substrates. The article 220 typically has a layer shape, but may have other shapes.

  The article 220 may include a layer other than the birefringent layer 1202 among the layers described for the transfer material layer 120. That is, instead of providing the reflective layer 1204 or the polarizing layer on the transfer material layer 120, the article 220 may be provided with the reflective layer 1204 or the polarizing layer.

Next, an image displayed on the display body 210 when observed with the naked eye will be described.
The regions R1a and R1b have birefringence. Birefringence is a phenomenon in which, when light is incident on a medium having optical anisotropy, two refracted lights whose electric field vector oscillation planes are perpendicular to each other, such as extraordinary rays and ordinary rays, appear.

The difference [Delta] n = n _e -n _o between the refractive index n _o relates to the refractive index n _e and ordinary ray regarding extraordinary ray medium exhibiting birefringence is called the refractive index anisotropy. The product δ = Δnd of the refractive index anisotropy Δn and the distance d of the medium through which the light passes is called retardation.

  The regions R1a and R1b have the same refractive index anisotropy Δn and the same distance d. That is, the regions R1a and R1b have the same retardation δ. Then, as shown in FIG. 4, the regions R1a and R1b differ in the orientation direction of mesogenic groups by 45 °. That is, the regions R1a and R1b differ in the plane of vibration of the extraordinary ray or ordinary ray electric field vector emitted by them by 45 °.

  When the regions R1a and R1b are observed with the naked eye, the observer perceives both an extraordinary ray and an ordinary ray emitted from each of the regions R1a and R1b. The observer cannot discriminate between the vibration planes of the electric field vector. Therefore, when the display body 210 is observed with the naked eye, it is impossible or difficult to distinguish the regions R1a and R1b from each other at the position of the reflective layer 1204.

  Note that a concave pattern or a convex pattern corresponding to the convex pattern or the concave pattern of the diffractive structure forming layer 1203 is provided on the front surface of the reflective layer 1204. The concave pattern or the convex pattern is a hologram or a diffraction grating as a diffractive structure. Is forming. Therefore, when the display body 210 is observed with the naked eye, the region corresponding to the reflective layer 1204 displays a diffraction image as a visible image.

Next, an image displayed on the display body 210 when observed through a polarizer will be described.
FIG. 6 is a plan view schematically showing an example of an image displayed on the display body when a polarizer is superimposed on the transfer product shown in FIG.

  In FIG. 6, as an example, a linear polarizing plate is used as the polarizer 30, and this polarizer 30 is overlaid on the display body 210 so that its transmission axis is parallel to the X direction. Here, it is assumed that the retardation δ of each of the regions R1a and R1b is ¼ of the wavelength λ of the light focused here.

  As shown in FIG. 6, when the polarizer 30 is superimposed on the display body 210, linearly polarized light whose electric field vector oscillation plane is parallel to the X direction enters the display body 210.

  The linearly polarized light incident on the region R1a passes through the birefringent layer 1202 shown in FIG. 3 without rotating the vibration plane of the electric field vector, is reflected by the reflective layer 1204, and passes through the birefringent layer 1202 again. . Therefore, the light emitted from the region R1a is linearly polarized light having the same plane of vibration as the linearly polarized light incident on the region R1a. This linearly polarized light ideally passes through the polarizer 30 without being absorbed. Accordingly, when the polarizers 30 are overlapped and observed as shown in FIG. 6, the region R1a appears bright.

  On the other hand, the linearly polarized light incident on the region R1b is converted to right circularly polarized light by passing through the birefringent layer 1202 shown in FIG. 3, reflected by the reflective layer 1204 and converted to left circularly polarized light, and birefringent. The light is transmitted through the conductive layer 1202 again to be converted into linearly polarized light. The plane of polarization of the electric field vector is perpendicular to the linearly polarized light and the linearly polarized light incident on the region R1b. Therefore, this linearly polarized light is ideally absorbed without passing through the polarizer 30. Accordingly, when the polarizer 30 is observed with overlapping as shown in FIG. 6, the region R1a looks dark.

  Thus, when the region corresponding to the reflective layer 1204 of the display body 210 is observed with the naked eye, the regions R1a and R1b are impossible or difficult to distinguish from each other. When the polarizer 30 is superimposed on the display body 210, the regions R1a and R1b can be easily identified from each other.

Next, transfer of the display body 210 to the article 220 will be described.
FIG. 7 is a side view schematically showing an example of the transfer method. FIG. 8 is a top view of the structure shown in FIG. 7 and 8, an arrow AR1 indicates the feeding direction of the transfer foil 10, and an arrow AR2 indicates the conveying direction of the article 220.

  When a display body is transferred from a transfer foil to an article, for example, up-down thermal transfer, roll thermal transfer, or vacuum press transfer is performed. 7 and 8 show a transfer method using an up-down thermal transfer machine as an example.

  In the transfer process using the up-down thermal transfer machine, for example, the transfer foil 10 wound on the unwinding roll is unwound, and this is transferred to the front surface so that the adhesive layer 130 shown in FIG. invite. The transfer foil 10 guided to the front of the table 410 has a display area, that is, a hot stamp 420 in which an area composed of the areas R1a and R1b shown in FIGS. Align so that they face each other.

  The article 220 is conveyed on the table 410. For example, as shown in FIG. 7, the conveyance direction of the article 220 is made to coincide with the feeding direction of the transfer foil 10 on the front surface of the table 410, or is made almost orthogonal to the feeding direction of the transfer foil 10 on the front surface of the table 410. The article 220 is aligned so that the portion to which the display body 210 is transferred faces the hot stamp 420.

  Next, the hot stamp 420 is lowered, the transfer foil 10 is pressed against the article 220, and the transfer foil 10 is heated. When the transfer foil 10 is heated, the adhesive layer 130 shown in FIG. As a result, the transfer material layer 120 adheres to the article 220 through the adhesive layer 130. Note that the surface of the hot stamp 420 facing the table 410 is designed such that the contour is located between the boundary B1b2 and the boundary B23 shown in FIG. 2 when the surface is pressed against the transfer foil 10.

  Thereafter, the hot stamp 420 is raised, and then the transfer foil 10, particularly the substrate 110, is peeled from the article 220. This peeling is performed, for example, by winding the transfer foil 10 while keeping the article 220 stationary. As a result, the transfer material layer 120 shown in FIG. 3 first starts to break from the contact point between the outline of the portion heated by the hot stamp 420 shown in FIG. 8 and the broken line L1. The breakage of the transfer material layer 120 proceeds along the outline of the heating unit as the transfer foil 10 is wound up. The rupture of the transfer material layer 120 ends at the contact point between the outline of the heating portion and the broken line L3.

  In the rim region R2, the portion that becomes the starting point of the break is the break start portion, and the portion that becomes the end point of the break is the break end portion. In this example, the peeling direction is the length direction of the transfer foil 10.

  When the breakage of the transfer material layer 120 is completed, the transfer foil 10 is peeled off from the article 220 while leaving the heated portion of the transfer material layer 120 on the article 220. Thereby, one transfer operation is completed, and a transfer product 20 shown in FIG. 5 is obtained.

  Thereafter, the transfer product 20 is conveyed from the table 410. Then, a plurality of transfer products 20 are manufactured by repeating the above-described operation.

  According to this method, the substrate 110 can be peeled off with a smaller force, and defects such as burrs and chips can be made difficult to occur. This will be described below.

The position of the broken line L1 shown in FIG. 8 is the peeling start position. At the peeling start position, a breaking resistance R _S that is a force necessary for breaking the transfer material layer 120, a peeling resistance R _R that is a force necessary for peeling the transfer material layer 120 from the substrate 120, and a transfer The adhesive force F _A between the material layer 120 and the article 220 acts. If the sum of the breaking resistance R _S and the peeling resistance R _R exceeds the adhesive force F _A , the display body 210 shown in FIG.

The position of the broken line L2 shown in FIG. 8 is the peeling intermediate position. If the adhesive force F _A exceeds the peeling resistance R _R , peeling proceeds stably without causing any chipping.

The position of the broken line L3 shown in FIG. 8 is the peeling end position. At the peeling end position, if the breaking resistance R _S is larger than the peeling resistance R _R , the display body 210 shown in FIG.

A layer made of a polymer liquid crystal material, fracture resistance R _C of the case of rupture in the direction along the minor axis of the mesogenic groups, compared to the fracture resistance R _P in the case to be broken in the direction along the long axis of the mesogenic groups And smaller. This is considered to be because the force derived from the entanglement of the mesogen group is smaller in the direction along the short axis of the mesogen group than in the direction along the long axis of the mesogen group.

The breaking resistance R _s described above with respect to the peeling start position and the peeling end position can be expressed by the following equation using the breaking resistances R _C and R _P. In the following equation, θ represents an angle formed by the direction perpendicular to the peeling direction and the orientation direction of the mesogen group.

R _S = R _P sin θ + R _C cos θ
As is clear from this equation, when the angle θ is reduced, the breaking resistance R _S can be reduced. When the angle θ is 90 °, the breaking resistance R _S is maximized, and when the angle θ is 0 °, the breaking resistance R _S is minimized.

In the above-described method, breakage is caused in the border region R2, and the mesogenic groups of the polymer liquid crystal material are aligned in a direction intersecting the peeling direction at both the break start portion and the break end portion. Therefore, in this case, the breaking resistance R _S is smaller than that in the case where the mesogenic group of the polymer liquid crystal material is aligned parallel to the peeling direction.

Therefore, the sum of the breaking resistance R _S and the peeling resistance R _R at the peeling start position can be suppressed from exceeding the adhesive force F _A , and the breaking resistance R _S can be made larger than the peeling resistance R _{R at} the peeling end position. Can be suppressed. Therefore, it is possible to prevent the display body 210 shown in FIG.

In this method, the breaking resistance R _S is relatively small. Therefore, according to this method, the substrate 110 can be peeled with a smaller force. Accordingly, it is possible to suppress the occurrence of the displacement of the transfer foil 10, the conveyance failure of the transfer product 20, and the position shift caused by the meandering of the transfer foil 10.

The effect described above can be obtained if the angle θ is less than 90 ° in each of the break start portion and the break end portion, but it is usually within the range of 0 ° to 45 °. In each of the break start portion and the break end portion of the border region R2, typically, the orientation direction of the mesogen group is orthogonal to the peeling direction. In this way, the breaking resistance R _S can be minimized.

Various modifications can be made to the technique described above.
For example, instead of orienting the mesogenic groups of the polymer liquid crystal material in the direction intersecting the peeling direction at both the break start portion and the break end portion, only the break start portion and the break end portion of the polymer liquid crystal material The mesogenic group may be oriented in a direction crossing the peeling direction.

  Further, instead of the up-down thermal transfer, another transfer such as a roll thermal transfer and a vacuum press transfer may be performed.

  Instead of peeling the substrate 110 from the article 220 by winding the transfer foil 10 while the article 220 is stationary, the substrate 110 is peeled from the article 220 by conveying the transfer 20 while the transfer foil is stationary. May be. In this case, the conveyance direction of the article 220 may coincide with the feeding direction of the transfer foil 10 on the front surface of the table 410 as shown in FIG. Also good. In the latter case, the peeling direction is substantially parallel to the width direction of the transfer foil 10. Therefore, in this case, it is necessary to change the orientation direction of the mesogenic group in each of the break start portion and the break end portion.

The transfer foil 10 may employ the structure shown in FIG.
FIG. 9 is a plan view schematically showing a modification of the transfer foil shown in FIG.
The transfer foil 10 will be described with reference to FIGS. 1 to 4 except that the mesogenic group of the polymer liquid crystal material is oriented along the outline of the display region, that is, the outer periphery of the region R1b in the border region R2. It is the same as the transfer foil 10 made.

  In the technique described above, the transfer foil 10 is designed assuming a specific peeling direction. The transfer process is then performed according to this design. That is, although the transfer foil 10 designed by assuming a specific peeling direction is used, peeling is not performed in a direction different from that direction. However, when the same transfer product 20 is manufactured using different transfer machines, the transfer direction may be different between one transfer machine and another transfer machine.

  When the transfer foil 10 shown in FIG. 9 is used, regardless of the peeling direction, the orientation direction of the mesogen group intersects the peeling direction at both the breaking start portion and the breaking end portion. Therefore, the above-described effect can be obtained without depending on the peeling direction.

Various modifications can be made to the shape of the display area and the orientation of the display area on the transfer foil 10.
10 to 18 are plan views schematically showing other variations of the transfer foil shown in FIG. Note that the reflective layer 1204 is omitted in FIGS. Further, in FIGS. 10 to 18, the display area is indicated by the reference symbol R1.

  In the transfer foil 10 shown in FIGS. 10 and 11, the display area 10 is a parallelogram. In the transfer foil 10 shown in FIGS. 12 to 15, the display area 10 has a heart shape. In the transfer foil 10 shown in FIGS. 16 to 18, the display region 10 has a shape in which a ring and a straight line passing through the center thereof are combined.

In the transfer process using the transfer foil 10 shown in FIGS. 10 to 18, when the transfer foil 10 is peeled from the upper side to the lower side of the paper surface, the portion surrounded by the alternate long and short dash line L _S in the border region R2 starts to break. correspond to parts, portions surrounded by one-dot chain line L _E corresponds to the broken ends unit.

When the mesogenic group is oriented in the direction intersecting with the peeling direction, here the direction intersecting with the X direction in the fracture start portion L _S , it is possible to suppress the occurrence of chipping in the display body. Further, the fracture ends unit L _E, a mesogenic group and is oriented in a direction intersecting the direction of peeling can be suppressed burrs occurs in the display body. As shown in FIGS. 11 and 12, when the outline of the display region R1 is tapered along the peeling direction in the peeling end portion L _S , the mesogenic groups are crossed in parallel to the peeling direction. However, it may be possible to suppress the occurrence of burrs in the display body.

In the transfer process using the transfer foil shown in FIGS. 11, 13, 14, 17, and 18, when the transfer foil 10 is peeled from the upper side to the lower side of the paper surface, the dashed line L in the border region R2. _The portion surrounded by _S ′ is likely to be chipped in the display body. Therefore, in these portions L _S ′, mesogenic groups may be oriented in a direction crossing the peeling direction.

Further, in the transfer process using the transfer foil shown in FIGS. 14 to 18, when the transfer foil 10 is peeled from the upper side to the lower side of the paper surface, the portion surrounded by the alternate long and short dash line L _E ′ in the border region R2 , Burrs are easily generated on the display body. Therefore, in these portions L _E ′, the mesogenic group may be oriented in a direction crossing the peeling direction.

Examples of the present invention will be described below.
(Example)
The transfer foil 10 described with reference to FIGS. 1 to 3 was manufactured. Here, the mesogenic groups were oriented as described with reference to FIG.

  Specifically, first, a photo-alignment agent IA-01 manufactured by Dainippon Ink & Chemicals, Inc. was applied to a PET film 110 having a band shape having a thickness of 16 μm using a micro gravure coating method. It was applied to a thickness of 1 μm.

Next, linearly polarized light having a wavelength of 365 nm is incident on a quartz crystal Z plate including a portion where the thickness continuously changes, and the transmitted light is irradiated to the entire surface of the previous coating film with an illuminance of 1 J / cm ^2. did. This light irradiation was performed so that the vibration surface of the electric field vector was parallel to the inner periphery of the region R2 in the portion corresponding to the region R2 in the previous coating film.

Next, the previous coating film was irradiated with linearly polarized light having a wavelength of 365 nm with an illuminance of 1 J / cm ² through a photomask. This light irradiation was performed so that a portion corresponding to the region R2 in the previous coating film was shielded from light. The linearly polarized light was irradiated such that the vibration plane of the electric field vector made an angle of 45 ° with respect to the length direction of the film 110.

Subsequently, the above-mentioned coating film was irradiated with linearly polarized light having a wavelength of 365 nm with an illuminance of 1 J / cm ² through a photomask. This light irradiation was performed so that the portions corresponding to the regions R1b, R2 and R3 in the previous coating film were shielded from light. The linearly polarized light was irradiated so that the vibration plane of the electric field vector was parallel to the length direction of the film 110.
As described above, a peeling protective layer 1201 also serving as an alignment film was obtained.

Next, a UV curable liquid crystal UCL-008 manufactured by Dainippon Ink & Chemicals, Inc. was applied to the thickness of 0.8 μm on the peeling protective layer 1201 by using a micro gravure coating method. The coating film was cured by irradiating the coating film with ultraviolet light having a wavelength of 365 nm at an illuminance of 0.5 mJ / cm ² under a nitrogen gas atmosphere after applying hot air to the coating film for 1 minute to promote orientation of the mesogen group. I let you. Thereby, a birefringent layer 1202 was obtained. In the birefringent layer 1202, the mesogenic groups were oriented as shown in FIG.

  Next, a thermoplastic resin layer obtained using acrylic polyol and isocyanate was formed on the birefringent layer 1202 by using a microgravure coating method. Subsequently, embossing was performed while applying heat, and a convex pattern corresponding to the diffraction structure was formed on the surface of the resin layer. The convex pattern was provided only in the portion where the reflective layer 1204 is formed later. As a result, a diffraction structure forming layer 1203 was obtained.

  Next, an aluminum layer having a thickness of 50 nm was formed on the diffractive structure forming layer 1203 by vapor deposition. A mask layer 1205 having a thickness of 1 μm made of a vinyl chloride-vinyl acetate copolymer was formed on the aluminum layer by a gravure printing method. The mask layer 1205 was formed so as to cover only the portion of the surface of the diffraction structure forming layer 1203 where the convex pattern was formed. Subsequently, the aluminum layer was subjected to wet etching for 10 seconds using a 1.5 mass% sodium hydroxide aqueous solution set at 50 ° C., and the exposed portion was removed. Thereby, a reflective layer 1204 was obtained.

  Further, an adhesive layer 130 made of a vinyl chloride-vinyl acetate copolymer was formed on the diffraction structure forming layer 1203 and the mask layer 1205 by using a coating method. The adhesive layer 130 was formed to have a thickness of 2 μm at a portion of the diffraction structure forming layer 1203 that is not covered with the mask layer 1205.

  As described above, the transfer foil 10 was completed. Hereinafter, this transfer foil 10 is referred to as “transfer foil A”.

(Comparative example)
In this example, as described for the transfer foil A, first, on a PET film 110 having a band shape and a thickness of 16 μm, using a microgravure coating method, manufactured by Dainippon Ink & Chemicals, Inc. The photo-alignment agent IA-01 was applied to a thickness of 0.1 μm.

Next, linearly polarized light having a wavelength of 365 nm is incident on a quartz crystal Z plate including a portion where the thickness continuously changes, and the transmitted light is irradiated to the entire surface of the previous coating film with an illuminance of 1 J / cm ^2. did. In this example, this light irradiation was performed so that the vibration surface of the electric field vector was perpendicular to the inner periphery of the region R2 in the portion corresponding to the region R2 in the previous coating film.

Next, the previous coating film was irradiated with linearly polarized light having a wavelength of 365 nm with an illuminance of 1 J / cm ² through a photomask. This light irradiation was performed in the same manner as described for the transfer foil A. That is, this light irradiation was performed so that a portion corresponding to the region R2 in the previous coating film was shielded from light. The linearly polarized light was irradiated such that the vibration plane of the electric field vector made an angle of 45 ° with respect to the length direction of the film 110.

Subsequently, the above-mentioned coating film was irradiated with linearly polarized light having a wavelength of 365 nm with an illuminance of 1 J / cm ² through a photomask. This light irradiation was performed in the same manner as described for the transfer foil A. That is, this light irradiation was performed so that portions corresponding to the regions R1b, R2 and R3 in the previous coating film were shielded from light. The linearly polarized light was irradiated so that the vibration plane of the electric field vector was parallel to the length direction of the film 110.
A transfer foil 10 was produced by the same method as described for the transfer foil A except that the release protective layer 1201 was formed as described above. Hereinafter, this transfer foil 10 is referred to as “transfer foil B”.

  Next, the transfer process described with reference to FIGS. 7 and 8 was performed using each of the transfer foils A and B. Here, paper is used as the transfer target 220. Further, here, a transfer machine manufactured by Gietz Co., Ltd. was used, and peeling was performed by winding the transfer foil 10 while the transfer target 220 was kept stationary.

In the transfer process using the transfer foil A, the base material 130 can be peeled off with a relatively small force, and there was no position shift caused by meandering of the transfer foil 10. On the other hand
In the transfer process using the transfer foil B, a relatively large force was required to peel off the base material 130, and a positional shift caused by meandering of the transfer foil 10 occurred.

Moreover, when each of the transfer products obtained using the transfer foils A and B was observed, in the transfer product obtained using the transfer foil A, the display body was not chipped or burred. On the other hand, in the transfer product obtained using the transfer foil B, the display body was chipped and burred.
Hereinafter, the invention described in the scope of claims at the beginning of application will be added.
[1]
A base material, and a birefringent layer facing the base material and containing a polymer liquid crystal material,
Comprising a transfer material layer releasably supported on the substrate, and an adhesive layer covering the transfer material layer,
The transfer material layer has a visible image and / or a latent image recorded thereon, borders the display area to be transferred from the substrate to the transfer target, and the display area, and transfers the display area. The mesogenic group of the polymer liquid crystal material is a rupture start portion that becomes a starting point of rupture when transferring the display area among the rim area. A transfer foil characterized by being oriented in a direction crossing the peeling direction of the display area.
[2]
The mesogenic group of the polymer liquid crystal material is oriented in a direction intersecting the peeling direction at a break end portion that becomes a break end point when the display area is transferred in the border area. The transfer foil according to [1].
[3]
[2] The transfer foil according to [2], wherein the mesogenic group of the polymer liquid crystal material is oriented in a direction orthogonal to the peeling direction of the display region in both the break start portion and the break end portion. .
[4]
A base material, a transfer material layer facing the base material and containing a polymer liquid crystal material and supported releasably on the base material; and an adhesive layer covering the transfer material layer The transfer material layer includes a display area in which a visible image or a latent image is recorded, and a border area that borders the display area, and the mesogen of the polymer liquid crystal material in the border area. The transfer foil is characterized in that the base is oriented along the outline of the display area.
[5]
The transfer foil according to any one of [1] to [4], wherein the transfer material layer further includes a reflective layer interposed between the birefringent layer and the adhesive layer.
[6]
The transfer foil according to [5], wherein the reflective layer includes a diffractive structure.
[7]
The display area and a part of the border area are pasted on the article by transfer using the article as a transfer object and the transfer foil according to any one of [1] to [3]. A transfer product comprising a display body including the transfer material.
[8]
A display body and an article supporting the display body, the display body including a birefringent layer containing a polymer liquid crystal material and a display on which a visible image and / or a latent image are recorded And a border region bordering the display region, and the mesogenic group of the polymer liquid crystal material is oriented along the contour of the display region in the border region .
[9]
A method for producing a transcript by transfer using a transfer foil,
The transfer foil includes a base material, a birefringent layer facing the base material and containing a polymer liquid crystal material, and a transfer material layer that is releasably supported on the base material, and covers the transfer material layer The transfer material layer includes a display area in which a visible image and / or a latent image are recorded, and a border area bordering the display area,
In the transfer, the transfer foil and the transferred object are arranged so that the display area faces the transferred object with the adhesive layer in between, and the display area and the border area are arranged in the display area. Heat and pressure are applied to the adjacent part from the base material side to adhere them to the transfer target, and then the transfer foil and the transfer target are separated from each other to thereby display the display in the border area. Causing a break along the contour of the region and peeling the display region from the substrate,
The orientation direction of the mesogenic group of the polymer liquid crystal material intersects with the peeling direction of the display region at the break start portion and / or the break end portion serving as the break end point in the border region. The method for producing a transfer product, wherein the transfer foil and the transfer target are separated from each other.

The top view which shows roughly the transfer foil which concerns on 1 aspect of this invention. The top view which expands and shows a part of transfer foil shown in FIG. Sectional drawing along the III-III line of the transfer foil shown in FIG. The top view which shows roughly the orientation state of the mesogen group of the polymer liquid crystal material which the transfer foil shown in FIG. 2 contains. The top view which shows roughly an example of the transcription | transfer material which can be manufactured using the transfer foil shown in FIG. The top view which shows roughly an example of the image which a display body displays, when a polarizer is piled up on the transcription | transfer material shown in FIG. The side view which shows an example of the transcription | transfer method roughly. FIG. 8 is a top view of the structure shown in FIG. 7. The top view which shows roughly the modification of the transfer foil shown in FIG. The top view which shows roughly the other modification of the transfer foil shown in FIG. The top view which shows roughly the other modification of the transfer foil shown in FIG. The top view which shows roughly the other modification of the transfer foil shown in FIG. The top view which shows roughly the other modification of the transfer foil shown in FIG. The top view which shows roughly the other modification of the transfer foil shown in FIG. The top view which shows roughly the other modification of the transfer foil shown in FIG. The top view which shows roughly the other modification of the transfer foil shown in FIG. The top view which shows roughly the other modification of the transfer foil shown in FIG. The top view which shows roughly the other modification of the transfer foil shown in FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Transfer foil, 20 ... Transfer material, 30 ... Polarizer, 110 ... Base material, 120 ... Transfer material layer, 130 ... Adhesive layer, 210 ... Display body, 220 ... Transfer object, 1201 ... Release protection layer, 1202 ... Birefringent layer, 1203 ... diffraction structure forming layer, 1204 ... reflective layer, 1205 ... mask layer, B1a1b ... border, B1b2 ... border, B23 ... border, R1 ... display area, R1a ... area, R1b ... area, R2 ... border Area, R3 ... peripheral area.

Claims (9)

A base material, a transfer material layer facing the base material and containing a polymer liquid crystal material and supported releasably on the base material; and an adhesive layer covering the transfer material layer The transfer material layer has a latent image recorded on the birefringent layer, borders the display area transferred from the base material to the transfer target, and the display area. An edge region that causes a break along the outline when the region is transferred, and at the break start portion serving as a starting point of the break when the display region is transferred, of the border region, A mesogenic group is oriented in a direction intersecting with the peeling direction of the display region.   The mesogenic group of the polymer liquid crystal material is oriented in a direction intersecting the peeling direction at a break end portion that becomes a break end point when the display area is transferred in the border area. The transfer foil according to claim 1.   3. The transfer foil according to claim 2, wherein mesogenic groups of the polymer liquid crystal material are oriented in a direction orthogonal to a peeling direction of the display region in both the break start portion and the break end portion. . A base material, a transfer material layer facing the base material and containing a polymer liquid crystal material and supported releasably on the base material; and an adhesive layer covering the transfer material layer And the transfer material layer includes a display area in which a latent image is recorded on the birefringent layer, and a border area bordering the display area, and the polymer liquid crystal material in the border area The transfer foil is characterized in that the mesogenic group is oriented along the outline of the display region over the entire circumference of the display region .   The transfer foil according to claim 1, wherein the transfer material layer further includes a reflective layer interposed between the birefringent layer and the adhesive layer.   The transfer foil according to claim 5, wherein the reflective layer includes a diffractive structure.   An article as a transfer target, and affixed on the article by transfer using the transfer foil according to any one of claims 1 to 3, and including the display area and a part of the border area. A transcript comprising a display body. A display comprising a display and an article supporting the display, wherein the display comprises a birefringent layer containing a polymer liquid crystal material and a latent image is recorded on the birefringent layer And a border region that borders the display region, and the mesogenic groups of the polymer liquid crystal material are aligned along the outline of the display region over the entire periphery of the display region in the border region. Transcript characterized by A method for producing a transcript by transfer using a transfer foil,
The transfer foil includes a base material, a birefringent layer facing the base material and containing a polymer liquid crystal material, and a transfer material layer that is releasably supported on the base material, and covers the transfer material layer The transfer material layer includes a display area in which a visible image and / or a latent image are recorded, and a border area bordering the display area,
In the transfer, the transfer foil and the transferred object are arranged so that the display area faces the transferred object with the adhesive layer in between, and the display area and the border area are arranged in the display area. Heat and pressure are applied to the adjacent part from the base material side to adhere them to the transfer target, and then the transfer foil and the transfer target are separated from each other to thereby display the display in the border area. Causing a break along the contour of the region and peeling the display region from the substrate,
The orientation direction of the mesogenic group of the polymer liquid crystal material intersects with the peeling direction of the display region at the break start portion and / or the break end portion serving as the break end point in the border region. The method for producing a transfer product, wherein the transfer foil and the transfer target are separated from each other.

Images