JP2001105795A - Transfer molded body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hot stamp foil, its manufacturing method and a product thereof for providing a hot decorating part of good workability and productivity, reflecting selectively rays of specified wavelength at low cost and also provided with superior beautiful appearance. SOLUTION: In a hot stamp foil manufacturing method, a liquid crystal polymer is applied on a hot stamp foil formed of a cholesteric liquid crystal polymer layer having selective reflection wavelength zones in visible rays and formed as a transfer layer and also on a base film, and then the cholesteric orientation is applied thereon to form the cholesteric liquid crystal polymer layer formed as a transfer layer, and then a bonding layer is formed on the cholesteric liquid crystal polymer layer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot stamp foil, a method of manufacturing the hot stamp foil, and a hot stamp foil capable of selectively reflecting visible light of a specific wavelength and providing a decorative component having an excellent appearance. The present invention relates to a transferred molded article.

[0002]

2. Description of the Related Art Hitherto, as a method of producing a decorative component or an optical element having an excellent appearance which can selectively reflect light of a specific wavelength, a decorative method in which a resin contains a polarizing pearl pigment or special metal particles is used. Printing or painting inks or paints, or laminating an inorganic thin film, such as a metal oxide such as titanium oxide, silicon oxide, or zirconium oxide, with a desired thickness on a molded product. As a method of using a specific inorganic thin film exhibiting the latter interference color, for example, there is JP-A-10-289633 by the present applicant.

[0003]

However, in the method of printing or coating an ink or paint containing a polarizing pearl pigment or special metal particles, it is difficult to uniformly disperse the particles of the special pigment to be added. For example, there is a problem that a stripe pattern or uneven color tone is generated, and it is not possible to provide a decorative component having a uniform appearance that can selectively reflect light of a specific wavelength and has excellent appearance. In addition, the method using an inorganic thin film exhibiting an interference color requires a processing time including pretreatment such as cleaning since the film formation is performed using a vacuum apparatus, and is not suitable for mass production. Further, there are problems in terms of cost, such as the high cost of the film forming apparatus and the necessity of fixing jigs of various shapes at the time of film forming.

Japanese Patent Application Laid-Open No. 11-176273 by the present applicant
Japanese Patent Application Publication No. JP-A-2003-115122 discloses a method of manufacturing a specific decorative molded product having improved workability and productivity by using a hot stamp foil having a specific inorganic thin film layer as a transfer layer. However, even in this method, in order to obtain a specific inorganic thin film layer, a physical vapor deposition method such as vacuum vapor deposition or a chemical vapor deposition method such as CVD has to be performed, so that an expensive device is required and manufacturing is required. Cost issues remained.

On the other hand, Japanese Patent Application Laid-Open No. 6-186534 proposes a method for producing a cholesteric liquid crystal film capable of selectively reflecting light of a specific wavelength. According to this method, a cholesteric liquid crystal film which is easily oriented is obtained by using a specific polyester-based liquid crystalline polymer. Further, application of the same cholesteric liquid crystal film to a watch is disclosed in JP-A-11-14762, JP-A-11-23738, JP-A-11-101883, and the like.

However, since these proposals use a cholesteric liquid crystal film as a constituent element, when decorating a target component, the cholesteric liquid crystal film is cut into a desired size. However, a complicated process such as sandwiching between the target components or fixing to the components with an adhesive or the like is required. Also, Japanese Patent Application Laid-Open
According to the detailed description of JP-A-1-124492, it is described that an optical film made of a cholesteric liquid crystal polyester composition on a substrate is peeled off after being adhered to another substrate. However, no detailed description or proposal has been made on the specific method.

[0007]

Means for Solving the Problems The present inventors have conducted intensive studies to solve the above-mentioned problems, and as a result, as a transfer layer,
By using a hot stamp foil with a cholesteric liquid crystalline polymer layer that has a selective reflection wavelength range for visible light, workability and productivity are good, and light of a specific wavelength can be selectively produced at low cost. The present inventors have found that it is possible to provide a decorative part having an excellent reflective appearance and arrived at the present invention.

That is, the present invention is a hot stamp foil in which a cholesteric liquid crystalline polymer layer having a selective reflection wavelength range for visible light is laminated as a transfer layer. further,
This is a hot stamp foil in which a protective layer is laminated on at least one surface of a cholesteric liquid crystalline polymer layer. Further, the hot stamp foil has a printed layer of characters, symbols, and the like laminated on at least one surface of the hot stamp foil.
Furthermore, a method of manufacturing a hot stamp foil in which a cholesteric liquid crystal polymer layer is formed by applying a liquid crystalline polymer on a base film, and then forming a cholesteric liquid crystalline polymer layer as a transfer layer, and further forming an adhesive layer thereon.

A release layer is formed on a base film, a liquid crystal polymer is applied thereon, and a cholesteric liquid crystal polymer layer having a cholesteric orientation is formed thereon to form a transfer layer, and an adhesive layer is further formed thereon. This is a method for manufacturing a hot stamp foil. Further, there is provided a method for producing a hot stamp foil, wherein a protective layer is laminated on at least one surface of the cholesteric liquid crystalline polymer layer.

Further, there is provided a method for manufacturing a hot stamp foil, wherein a printed layer of characters, symbols, etc. is formed on at least one side of the hot stamp foil. Further, it is a transfer molded article provided with a cholesteric liquid crystalline polymer layer having a selective reflection wavelength range for visible light as a thermal transfer layer. Further, it is a transfer molded article provided with a cholesteric liquid crystalline polymer layer having a selective reflection wavelength range for visible light as an in-mold transfer layer.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail. The hot stamp foil of the present invention has a cholesteric liquid crystal polymer layer having a selective reflection wavelength range for visible light as a transfer layer, as illustrated in FIG. 1,
The method for manufacturing the hot stamp foil 7 of the present invention includes a release layer 2 formed on the base film 1 as necessary, a transfer layer comprising a cholesteric liquid crystalline polymer layer 4 having a selective reflection wavelength range for visible light, This is a method of manufacturing by laminating the adhesive layer 6. The protective layer 3 or the protective layer 5 may be formed as needed for the purpose of protecting the thin cholesteric liquid crystalline polymer layer 4. Further, as shown in FIG. 3, a print layer 12 such as a character or a symbol may be laminated on at least one side of the cholesteric liquid crystalline polymer layer 4 having a selective reflection wavelength range for visible light.

Hereinafter, each of these layers will be described in detail. As the base film, a polyester film such as a polyethylene terephthalate film or a polyethylene naphthalate film, a cellulose film such as triacetyl cellulose, a polyimide film, a polyvinyl alcohol film, a polyetherimide film, a polyamide film, a polyimide amide film, and a polyether sulfone Polyolefin films such as films, polypropylene films and polymethylpentene films, acrylic films such as polycarbonate films, polyester carbonate films, polyarylate films, polymethyl methacrylate films, polyacrylonitrile films, polyether nitrile films, polyphenylene ether films, fluorine System film, polystyrene system Irumu, polyurethane film, an epoxy resin film, aramid paper or the like known film or paper. Above all, thermal,
A chemically stable uniaxially or biaxially stretched polyethylene terephthalate film or cellulosic film is preferable because it can be obtained at low cost. The thickness of the base film layer is not specified, but is preferably about 5 μm to 100 μm from the viewpoint of mechanical properties and handleability.

The resin used in the release layer of the present invention includes:
Acrylic resin, nitrified cotton acrylic resin, melamine resin, melamine acrylic resin, urea melamine resin, cellulose resin, wax resin, silicone resin,
At least one known peelable resin selected from a fluorine-based resin, a long-chain alkyl group-containing resin, and the like can be used. The release layer is formed by coating a solution or the like obtained by dissolving these resins in a solvent on the base film layer by a known method,
The thickness is preferably about 0.5 μm to 8 μm. In addition,
In each actual layer configuration, the transfer layer may be able to be effectively transferred from the base film to the target component, in which case the release layer is not necessarily required. The present invention is characterized by having a cholesteric liquid crystalline polymer layer having a selective reflection wavelength range for visible light as a transfer layer. Here, the transfer layer is a layer that is transferred to an object by hot stamping.

The cholesteric liquid crystalline polymer layer having a selective reflection wavelength range for visible light used in the present invention can be prepared by the following known method. Above all, the following (2)
Alternatively, a cholesteric liquid crystalline polymer layer having a selective reflection wavelength range for visible light obtained by the method (3) is particularly preferable because of its excellent appearance and good productivity.

(1) A method in which a low-molecular liquid crystal is subjected to cholesteric alignment, and then the low-molecular liquid crystal is cross-linked by a photoreaction or a thermal reaction to fix the orientation. (2) A method in which a side chain type or main chain type thermotropic polymer liquid crystal is cholesterically aligned in a liquid crystal state, and then cooled to a temperature lower than a liquid crystal transition point to fix the alignment state. (3) A method in which a cholesteric liquid crystal of a side chain type or a main chain type is cholesterically aligned in a solution, and then the alignment state is fixed by gradually removing the solvent. (4) A cholesteric liquid crystalline polymer obtained by the method (1) to (3) obtained by pulverizing the cholesteric liquid crystalline polymer is mixed with a resin or a printing ink or the like, which is mixed with a fine powder. How to print.

Examples of polymer liquid crystals that can be used to obtain these cholesteric liquid crystal polymer layers include:
Side chain type polymer liquid crystal such as polyacrylate, polymethacrylate, polysiloxane, polymalonate having a liquid crystal forming group in a side chain, polyester having a liquid crystal forming group in a main chain,
Polyester amide, polycarbonate, polyamide,
A main-chain type polymer liquid crystal such as polyimide can be exemplified. In each case, known polymer liquid crystals can be used.
JP-A-6-186534, JP-A-11-1244
The specific polyester composition described in JP-A-92-9292 exhibits a very beautiful color and has good environmental characteristics, and is preferable.

The film thickness may be determined according to the characteristics and application of the actual cholesteric liquid crystalline polymer layer, and is not particularly limited.
The range of μm is preferred. The center wavelength for selective reflection is determined by the product of the helical pitch of the cholesteric liquid crystalline polymer and the average refractive index.

The protective layer of the present invention is provided for the purpose of physically and chemically protecting the thin cholesteric liquid crystalline polymer layer. When the protective layer is formed on at least one surface of the cholesteric liquid crystalline polymer layer, the protective layer has high strength and resistance. Abrasion resistance, weather resistance? It is preferable because environmental characteristics such as reliability and the like are improved. The film thickness is preferably about 0.5 μm to 20 μm. As the resin constituting the protective layer, acrylic resin, polyester resin, vinyl chloride resin, vinyl acetate resin, polyvinyl butyral resin, urethane resin, melamine resin,
At least one of at least one selected from phenolic resins, urea resins, diallyl phthalate resins, epoxy resins, silicone resins, alkyd resins, rosin resins, cellulose resins, polyamide resins, and the like.
A thermoplastic resin, a thermosetting resin, a photocurable resin, and an electron beam curable resin composed of a layer can be used. This protective layer may be colorless and transparent or may be colored. What dissolved these protective layer resins with an appropriate solvent if necessary,
It can be formed by applying or printing and curing by a usual method such as a gravure coating method, a roll coating method, a blade coating method, and a spray coating method.

The printing ink used as a printing layer for characters and symbols of the present invention is not particularly limited, but printing inks of acrylic, polyester, vinyl chloride, vinyl acetate, urethane and the like can be used. Can be used. Known printing methods such as screen printing, gravure printing, and pad printing can be applied to the printing method. In particular, the screen printing method enables thick printing of the ink, and has excellent concealing properties and can enhance the design effect. In the present invention, in addition to the characters and symbols, all of the characters and symbols, designs, patterns, and solid shapes formed by applying a pattern or solid color printing or coating a paint are included. Furthermore, it is also possible to express a high degree of design by depositing or plating a metal such as aluminum or an inorganic compound, or by performing metallic coating or metallic printing to form a composite laminate. A hologram-type decorative layer can be laminated. These characters, symbols, designs, patterns, vapor-deposited layers and the like can be easily transferred to a target component together with a cholesteric liquid crystal polymer layer as a transfer layer by a hot stamping method.

The adhesive layer of the present invention may be any of known hot-melt adhesives and pressure-sensitive adhesives made of thermoplastic resins such as acrylic resins, vinyl acetate resins, vinyl chloride resins, polyester resins and polyamide resins. , Natural rubber,
Rubber-based adhesives such as chloroprene rubber, nitrile rubber, styrene butadiene rubber, and urethane rubber can be used.
A solution obtained by dissolving these adhesives in an appropriate solvent can be applied by a usual method such as a gravure coating method, a roll coating method, or a blade coating method. The film thickness is preferably from 1 μm to 30 μm. The kind, the coating method and the film thickness of the adhesive actually used may be arbitrarily selected in consideration of the material of the target component, the quality after transfer, the adhesion reliability, and the like.

Using the hot stamp foil of the present invention, the material, molding method, shape, etc. of the part to be transferred, which is the substrate to be hot stamped with the cholesteric liquid crystalline polymer layer having a selective reflection wavelength range for visible light as the transfer layer, Is not particularly limited. Examples of the material of the target component include thermoplastic resins, thermosetting resins, photocurable resins, thermoplastic elastomers, rubber, metals such as aluminum, alloys such as magnesium alloys, ceramics such as glass, and wood. Molded products, extrusion molded products, blow molded products, press molded products, calender molded products, inflation molded products, transfer molded products, rotational molded products, cutting processed products, optical molding processed products, die cast processed products, thixo molded processed products,
Metal injection products etc. are targeted.

The transfer molded article of the present invention is obtained by hot-stamping a cholesteric liquid crystal polymer layer having a selective reflection wavelength range for visible light as a transfer layer, and a cholesteric liquid crystal polymer having a selective reflection wavelength range for visible light. It is formed by in-mold transfer molding using a molecular layer as a transfer layer. In order to obtain a transfer molded product by hot stamping, a known hot stamping method such as an up-down method or a roll method is applied using the hot stamp foil of the present invention, and the transfer molding is performed on the target parts after the above various moldings. Good. On the other hand, in order to perform in-mold transfer, which is another invention, a film having a cholesteric liquid crystal polymer layer having a selective reflection wavelength range for visible light as a transfer layer is injection-molded, blow-molded, press-molded, and vacuum-pressure-molded. In particular, the in-mold method of disposing a resin or the like in a mold such as a resin and transferring the resin at the same time is effective with particularly high productivity. When transferring by the in-mold method, the hot stamp foil of the present invention may be used, or a commercially available cholesteric liquid crystalline polymer film may be used.

Hereinafter, the present invention will be described more specifically with reference to Examples and Comparative Examples. However, the present invention is not limited to the following Examples.

Embodiment 1 FIG. 1 is a sectional view of a hot stamp foil of Embodiment 1. On a base film 1 made of a biaxially stretched polyethylene terephthalate film having a thickness of 12 μm, a release layer 2 of a silicone resin and a protective layer 3 of an acrylic resin were sequentially formed. After rubbing the surface of the protective layer, a gravure coat of an 8 wt% tetrachloroethane solution of a polymer liquid crystal (logarithmic viscosity of base polymer: 0.12, Tg = 75 ° C.), which is a mixed composition represented by the formula 1, is applied. Then, after drying, heat treatment at 150 ° C. for 10 minutes, cooling and fixing,
A cholesteric liquid crystalline polymer layer 4 having a thickness of 2 μm and reflecting green light was formed. Further, after forming a protective layer 5 of an acrylic resin, a polyester hot melt adhesive layer 6 was formed, and a hot stamp foil 7 having a cholesteric liquid crystalline polymer layer as a transfer layer was obtained. FIG. 7 shows the visible light transmission spectrum of the cholesteric liquid crystalline polymer layer 4 of this example.
Is indicated by a broken line.

[0024]

(Equation 1)

Next, as shown in FIG. 2, the hot stamp foil 7 of the present invention is engraved with a silicone rubber stamp 14 heated to 170 ° C.
Then, the transfer layer 8 including the cholesteric liquid crystalline polymer layer 4 was transferred to a transparent polycarbonate injection-molded product 10 in which a character printing layer 9 was pad-printed on the back surface in advance. The resulting transfer molded body 11 was excellent in aesthetics that selectively reflected green.

[0026]

Second Embodiment FIG. 3 is a cross-sectional view of a hot stamp foil according to a second embodiment. A character printing layer 12 was screen-printed with a polyester coloring ink on a base film 1 made of a triacetyl cellulose film having a thickness of 25 μm to form a protective layer 3 of an acrylic resin in order. After rubbing the surface of this protective layer, the same cholesteric liquid crystal polymer layer 4 having a thickness of 2 μm that reflects the same green light as in Example 1 was formed, and the protective layer 5 of an acrylic resin was formed. A polyester hot melt adhesive layer 6 was formed, and a hot stamp foil 13 having a character printing layer 12 and a cholesteric liquid crystalline polymer layer 4 as a transfer layer was obtained.

Next, as shown in FIG. 4, the hot stamp foil 13 of the present invention was heated at 170 ° C. to form a silicone rubber stamp 1.
4 for 2 seconds to transfer the transfer layer 15 including the cholesteric liquid crystalline polymer layer 4 and the character print layer 12 to a surface-treated aluminum die-cast component 16. An ultraviolet-curable acrylic hard coat agent was applied to the transferred surface and cured to form a hard coat layer 17. The obtained transfer molded body 18 has a character printing layer 12 against a cholesteric liquid crystalline polymer layer that selectively reflects green.
Was excellent in the design property that could be clearly recognized.

[0028]

Example 3 The hot stamp foil 13 of Example 2 was placed in an injection mold, and a general-purpose transparent polystyrene resin was injection molded to transfer-mold the transfer layer 15 of the hot stamp foil 13 by in-mold transfer molding. The obtained molded article was excellent in design such that the character print layer 12 was clearly visible against the background of the cholesteric liquid crystalline polymer layer that selectively reflects green.

[0029]

Comparative Example 1 FIG. 5 is a sectional view of a conventional cholesteric liquid crystalline polymer film 19. Cholesteric liquid crystalline polymer film 19 (TS-9 manufactured by Nippon Petrochemical Co., Ltd.)
No. 087-02), a cholesteric liquid crystalline polymer layer 4, a protective layer 5, an adhesive layer 20, and a release film 21 are laminated on a cellulose-based base film 1.

As shown in FIG. 6, a film 22 obtained by cutting the cholesteric liquid crystal film 19 and peeling off the release film 21 was subjected to pad printing on the back side of the character printing layer 9 in advance in the same manner as in Example 1 to obtain a transparent film. The adhesive layer 20 was adhered to the polycarbonate injection molded article 10 with an adhesive layer 20. In addition, a cholesteric liquid crystal polymer film 19 (TS-9087-0 manufactured by Nippon Petrochemical Co., Ltd.) that selectively reflects red.
The visible light transmission spectrum of 2) is shown by a solid line in FIG.

[0031]

Comparative Example 2 The release film 21 of the cholesteric liquid crystalline polymer film 19 of Comparative Example 1 was peeled off, and the character print layer 9 was removed.
Tried to hot-stamp the cholesteric liquid crystal polymer layer 4 on the transparent polycarbonate injection molded product 10 on which the back side was pad-printed, but the cholesteric liquid crystal polymer layer 4 could not be transferred satisfactorily.

[0032]

As shown in the comparative examples, when a conventional cholesteric liquid crystalline polymer film is used for the purpose of obtaining a decorative component having an excellent appearance which can selectively reflect visible light of a specific wavelength, a specific shape can be obtained. Therefore, a process of cutting the film or applying an adhesive to bond the film is required, and there is a problem in productivity and workability. In addition, hot stamping of a commercially available cholesteric liquid crystalline polymer film could not be performed.

On the other hand, as is apparent from the examples, by using the hot stamp foil obtained in the present invention,
It is possible to easily and inexpensively manufacture a decorative component or an optical element having an excellent appearance that can selectively reflect visible light having a specific wavelength. Furthermore, characters, symbols, and the like can be transferred and formed at the same time, and a transfer molded product having a novel design and excellent appearance can be obtained.

The transfer molded product obtained by the hot stamping method using the hot stamping foil of the present invention or the in-mold method of the present invention can be used for home appliances, audio products, computers, displays, in-vehicle products, watches, accessories, optics, etc. It can be widely applied to parts and the like.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a hot stamp foil of Example 1.

FIG. 2 is a longitudinal sectional view showing a form in which the hot stamp foil of Example 1 is hot stamped on a polycarbonate injection molded product.

FIG. 3 is a longitudinal sectional view showing a hot stamp foil of Example 2.

FIG. 4 is a longitudinal sectional view showing a form in which the hot stamp foil of Example 2 is hot stamped on an aluminum casing.

FIG. 5 is a longitudinal sectional view showing a conventional cholesteric liquid crystalline polymer film.

FIG. 6 is a longitudinal sectional view showing a form in which the cholesteric liquid crystalline polymer film of Comparative Example 1 is adhered to a polycarbonate injection molded product.

FIG. 7 shows visible light transmission spectra of the cholesteric liquid crystalline polymer layers of Example 1 and Comparative Example 1.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Base film 2 Release layer 3 Protective layer 4 Cholesteric liquid crystalline polymer layer 5 Protective layer 6 Adhesive layer 7 Hot stamp foil 8 Transfer layer 9 Character print layer 10 Polycarbonate injection molded product 11 Transfer molded product 12 Character print layer 13 Hot stamp foil Reference Signs List 14 Marking made of silicone rubber 15 Transfer layer 16 Die-cast part made of aluminum 17 Hard coat layer 18 Transfer molded product 19 Conventional cholesteric liquid crystal polymer film 20 Adhesive layer 21 Release film 22 Conventional cholesteric liquid crystal polymer film cut

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] September 21, 2000 (2009.2)
1)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Name of invention

[Correction method] Change

[Correction contents]

[Title of the Invention] Transfer molding

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0001

[Correction method] Change

[Correction contents]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer molding which selectively reflects visible light of a specific wavelength and is a beautiful decorative part having interference colors.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction contents]

[0007]

Means for Solving the Problems The present inventors have conducted intensive studies to solve the above-mentioned problems, and as a result, as a transfer layer,
By using a hot stamp foil with a cholesteric liquid crystalline polymer layer that has a selective reflection wavelength range for visible light and exhibits an interference color, workability and productivity are good, and the cost of specific wavelengths is low. The present inventors have found that it is possible to provide a decorative component having an excellent appearance that can selectively reflect light, and have reached the present invention.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction contents]

That is, the present invention relates to a transfer molded article in which a cholesteric liquid crystalline polymer layer having a selective reflection wavelength range for visible light and exhibiting an interference color is provided as a transfer layer on the molded article.

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Deleted

[Procedure amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Deleted

[Procedure amendment]

[Submission date] January 26, 2001 (2001.1.2)
6)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

 ──────────────────────────────────────────────────続 き Continued on the front page F-term (reference) 2H086 CA01 CA17 3B005 EA11 EB01 EB03 EB09 FC08Y FC10X FC20X FG04X FG04Z FG12X GA03 GA06 4F071 AA43 AF12 AF29 AG12 AH19 BA02 BB02 BC01 BC02 4F100 AK01 AT00AAK00 AK01 AT00AAK00 BA04 BA05 BA10B BA10C EH462 EJ422 EJ502 EJ612 GB33 GB48 GB51 HB31D JL01 JL12E JL14E JN06A

Claims (9)

[Claims] 1. A hot stamp foil characterized in that a cholesteric liquid crystalline polymer layer having a selective reflection wavelength range for visible light is laminated as a transfer layer. 2. A hot stamp foil comprising a protective layer laminated on at least one side of a cholesteric liquid crystalline polymer layer. 3. The hot stamp foil according to claim 1, wherein a printed layer of characters, symbols, etc. is laminated on at least one side. 4. A hot stamp wherein a liquid crystal polymer is coated on a base film, and then cholesteric alignment is performed to form a cholesteric liquid crystal polymer layer to form a transfer layer, and an adhesive layer is further formed thereon. Method of manufacturing foil. 5. The method according to claim 4, wherein a release layer is formed on the base film, and a liquid crystalline polymer is applied thereon.
3. The method for producing a hot stamp foil according to item 1. 6. The method for producing a hot stamp foil according to claim 4, wherein a protective layer is laminated on at least one surface of the cholesteric liquid crystalline polymer layer. 7. A printing layer according to claim 4, wherein at least one side is provided with a printed layer of characters, symbols and the like.
3. The method for producing a hot stamp foil according to item 1. 8. A transfer molded article characterized in that a cholesteric liquid crystalline polymer layer having a selective reflection wavelength range for visible light is hot stamped. 9. A transfer molded article characterized in that a cholesteric liquid crystal polymer layer having a selective reflection wavelength range for visible light is transferred by in-mold transfer.