TW200812799A - Resin member - Google Patents

Abstract

A resin member comprising an elastic resin substrate having a three-dimensional structure in at least one surface thereof, and a color-shift layer bonded to the surface having the three-dimensional structure.

Description

200812799 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD The present disclosure relates to a resin member including a color changing feature. [Prior Art] As a countermeasure against counterfeit products, security labels or security marks are currently widely used because they are easy to distinguish between originals and counterfeit products. Safety labels or security marks have characteristic appearance or semiconductor integrated circuit (IC) information, which makes labels or marks difficult to counterfeit or counterfeit. Some known examples of the appearance of such features include color-changing images whose color changes when viewed from different angles; specific luminescent images that illuminate when exposed to specific wavelengths of light, such as ultraviolet and black light; and hologram images, Change the color of the label or the mark (Japanese Patent Laid-Open Publication No. H9(1997)-97011; Japanese Patent Laid-Open Publication No. H8(1996)_95475, Japanese Patent Laid-Open Publication No. 1 (1989) No. 23277) . However, such images are not satisfactory for imparting the desired design because the color of the light emitted therefrom is limited and because of its flatness. In addition, since the surface is flat, it is relatively easy to copy existing materials. SUMMARY OF THE INVENTION In some embodiments, the resin member of the present disclosure addresses one or more of the problems mentioned above. In some embodiments, the tree sill members of the present disclosure can be used to provide a security standard or security tag that is well designed and difficult to replicate. . The present disclosure provides a resin member comprising: an elastic wax substrate having a three-dimensional structure on at least one surface thereof; and a 123119.doc 200812799 the film is bonded to have the three-dimensional decorative film, the decorative film A surface comprising a color-changing layer structure. The resin member of the present invention has a three-dimensional structure, that is, a three'. Therefore, the two-dimensional configuration and the color arrangement of a surface color-changing layer

5, I can easily copy the 2D logo mark or the like, and achieve high design performance. The resin member of the present disclosure is an elastic article. Therefore, even if the surface of an object is a curved surface, it can follow the surface well. Therefore, it can be used in various applications. In addition, it is difficult to copy and analyze three-dimensional shapes. Forced attempts to separate will tend to cause the interface to break. It is difficult to copy due to & [Embodiment] Fig. 1 is a cross-sectional view showing an example of the structure of a resin member of the present disclosure. The resin member has a substrate i and a decorative film 2. The substrate has a three-dimensional structure 3 on one side thereof. The substrate used in the present disclosure is an elastic resin article. The elastic resin is excellent in flexibility and is easily attached to the product when it is manufactured into a security label or a security mark. In addition, when a body contacts the molded article, the article will only produce a slight impact on it. Examples of the elastic resin include polyurethane, polyurethane acrylate, polycarbonate, polyester, thermoplastic polyolefin, and polyester-based thermoplastic elastomer. In some embodiments, the elastic resin molded article has a Shore A hardness of from 3 Torr to 120, and in some embodiments, from 4 Torr to 1 Torr. In some embodiments, the elastic resin substrate is in the form of a thin plate and has a moon surface and a rear surface. At least one of the surface of the crucible has a one-dimensional configuration. The configuration has protrusions and/or depressions, such as patterns and engravings. 123119.doc -7- 200812799 ^ Typical examples of patterns or engravings include, but are not limited to, logo marks, signage, trademarks, and company stamps. The substrate can be made in the usual way, for example, by pour the monomer Into a model, and then polymerize it. The substrate size varies depending on the application. Typically, the substrate has a minimum thickness of about 5 millimeters (mm) and a maximum thickness of about 20 mm. Next, the molded article has a three-dimensional shape. A color changing layer, such as a color changing coating, is formed on the surface of the structure. In some embodiments, such a layer enhances the aesthetics of the three φ dimensional configuration and has excellent pseudo-counterfeiting due to complex color variations. Coating means a coating forming a color changing layer which varies its color depending on the viewing angle or the incident condition of light. In some embodiments, the color changing coating 0 comprises a flake pigment having a multilayer structure. The spectral effect caused by the multilayer structure produces an interference wavelength, and thus the color of the coating changes. Examples of such a color-changing coating include "maziora, manufactured by mppon Paint c〇·, Ltd. ). " • In some embodiments, to form a layer of color changing coating on the molded article, the decorative film 2 containing the color changing coating is bonded to the three-dimensionally structured surface of the molded article shown in the drawing. This is because when the color-changing coating layer is directly applied to the three-dimensional structure, it may be difficult to form a uniform coating film. Fig. 2 is a cross-sectional view showing an example of the structure of the decorative film used in the present disclosure. The decorative film has a thermoplastic resin layer 4 and a color changing layer 5. The thermoplastic resin layer 4 may not be necessary. If desired, the color-changing layer 5 has a printed or protective layer on it. A uniform coating film is formed on the three-dimensional structure of the molded article by previously providing a coating on the thermoplastic layer 123119.doc 200812799. The thermoplastic resin layer can be formed by heating to have a desired three-dimensional shape. In some embodiments, the decorative film has a thickness of & 500 microns _) and is preferably 5 to 3 yaw. If the decorative film has a thickness of less than 1 μm, the decorative effect may be insufficient, or the film may have a reduced strength' and thus the film may be easily detached from the surface of the molded article. When the thickness is more than 500 μm, it is difficult to form the film on the molded article into a desired two-dimensional configuration. Examples of the thermoplastic resin layer include the following films: polyethylene terephthalate, polyanthracene, polyurethane vinegar, polyglycolic acid vinegar, polyurethane vinegar, polyvinyl chloride, nylon, EVA, Polytetraethylene (ptfe), Emerald-tetrahydroethylene (ETFE), Quandeng oxy-smoke (pFA) and Polytetrafluoroethylene (PVDF). In some embodiments, the thermoplastic resin layer has a maturity of 50 to 250 μm. The method for joining the decorative film to the molded article is not subject to a specific limit =. For example, a layer of viscous or pressure sensitive adhesive is provided on the contact surface of the decorative film in advance, and then the decorative film is adhered to the molded article. Another possible method includes molding a decorative film, and then filling the molded decorative film with an elastic resin, followed by curing the resin. For example, a method of molding a decorative film including a thermoplastic film by using a sputum type is disclosed in Japanese Laid-Open Patent Publication No. 5,993- 269,883. The lower grease member is used for safety labels or safety marks. In the case where the right rain is required, a pressure sensitive adhesive or an adhesive is formed on the surface of the resin member. The tree member may also have a film shape 1231I9.d〇 (200812799 electronic circuit on the rear surface thereof, and be used as an RFID tag or the like. The exemplary resin member of the present disclosure will be described in more detail below with reference to examples. However, the present invention is not limited thereto. Example 1 FIG. 3 is a cross-sectional view showing the structure of the security mark of this example. After stirring the material given in Table 1, the resulting mixture is poured into a model, and _ The heating was subjected to polymerization. Thus, a urethane resin molded article 6 having a logo on its surface was obtained. The obtained molded article was a thin plate having a minimum thickness of 1 mm and a maximum thickness of 2.0 mm. Ingredient amount (in parts by weight) Polyol Poly_ (manufactured by Inolex Chemical Company, Lexorezf') 60 Polyisocyanate g ("Duranate 24A-100'* manufactured by Asahi Kasei Chemicals Corporation) 40 Octyl tin catalyst (SCAT-52A) 0.1 Subsequently, a decorative film 7 (lf color PET film ", manufactured by 3M, thickness 100 μm) was formed in the same form as the logo, and then attached to the molding Next, the raw materials given in Table 2 were polymerized to form an acrylic adhesive which was laminated on the surface after the molded article 6 to form an adhesive layer 8. 123119.doc -10- 200812799 Table 2 Ingredients (in parts by weight) Acrylic acid 90 Fermentation 10 The female standard § has followed a curved surface and adhered to it. The color change is quite complicated, so the mold The beauty of the logo on the article was enhanced. Example 2 An electronic circuit of a non-contact film similar to that manufactured by FUJITSU, Ltd. was laminated on the adhesive surface of the security mark obtained in Example 1 to produce an RFID tag. Example 1 and Example 2 The security mark and RFID obtained in the present invention have excellent design and safety performance, and are difficult to imitate. [Schematic description of the drawings] Fig. 1 is a cross-sectional view showing an example of the structure of the resin member of the present disclosure. Fig. 3 is a cross-sectional view showing the structure of the security mark of Example 1. [Main element symbol description] 1 substrate 2 decorative film 3 three-dimensional Photochromic coat layer configuration 123119.doc 200812799 5 6 urethane resin molded article 8 of the decorative film adhesive layer 7 of the thermoplastic resin layer 4

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Claims (1)

200812799 X. Patent application scope: a tree planting member comprising an elastic resin substrate having a three-dimensional structure on at least one surface thereof; and a color changing layer bonded to the three-dimensional structure The surface. 2. The resin member according to claim 1, wherein a decorative film containing at least the color-changing coating is bonded to the surface having the three-dimensional structure. 3. The resin member according to claim 2, wherein the decorative film is a composite film comprising a thermoplastic resin layer and the color-changing layer. 4. The resin member of claim 3, wherein the thermoplastic resin layer comprises polyethylene terephthalate, polyolefin, polyurethane, polyacrylic acid vinegar, polyurethane acrylate, gas gathering Ethylene, nylon, E VA, polytetrafluoroethylene, ethylene-tetrafluoroethylene copolymer, perfluoroalkoxy hydrocarbon and polydifluoroethylene. The resin member according to any one of claims 1 to 4, wherein the elastic resin is a polyurethane resin, a polyurethane acrylate resin, a thermoplastic polyolefin or a polyester-based thermoplastic elastomer . The resin member according to any one of claims 1 to 4, wherein the elastic resin substrate has a Shore A hardness of 40 to 100. The resin member according to any one of claims 1 to 4, wherein the member is used in a security tag or a security tag. 123119.doc