Ornament

Abstract

We provide decorative items such as cards, acrylic stands, and badges with printed photos or images that resist deterioration of their appearance. [Solution] The decorative body 10 comprises a main body 3 having a display surface 3a, and a laminated film that covers the display surface 3a of the main body 3 and has a resin substrate 9 and a self-healing layer 1 provided on the side of the resin substrate 9 opposite to the main body 3. A printing layer 5 having a printed section 6 is provided between the display surface 3a of the main body 3 and the back surface of the resin substrate 9.

Description

Technical Field

[0001] The technology disclosed in this specification relates to ornaments such as cards, key holders, portable straps, acrylic stands, and can badges.

Background Art

[0002] Ornaments such as cards, acrylic stands, and can badges printed with photos, images, etc. have long been popular among general consumers. In recent years, as a type of "favorite goods", the number of enthusiasts who purchase ornaments printed with the images of their favorite idols or anime characters has been increasing.

[0003] Japanese Unexamined Patent Application Publication No. 2019-136210 (Patent Document 1) describes a can badge including a metal front cover, a back cover fitted to the front cover at the peripheral edge, a protective film covering the front cover and provided with a printing layer on the back, and the peripheral edge being sandwiched between the front cover and the back cover.

Prior Art Documents

Patent Documents

[0004]

Patent Document Ⅰ

Summary of the Invention

Problems to be Solved by the Invention

[0005] For ornaments such as can badges and acrylic stands, there is a consumer need to preserve them in a beautiful state for a long time. However, when a general transparent film is used as the protective film, the surface of the transparent film gets scratched over time, and it is difficult to prevent the deterioration of the appearance.

[0006] An object of the present invention is to provide an ornament with suppressed deterioration of the appearance.

Means for Solving the Problems

[0007] An example of a decorative body disclosed herein comprises a main body having a display surface, and a laminated film covering the display surface of the main body, having a resin substrate and a self-healing layer provided on the side of the resin substrate opposite to the main body. A printing layer having a printed portion may be provided between the display surface of the main body and the back surface of the resin substrate. [Effects of the Invention]

[0008] According to the decorative elements disclosed herein, even if the surface is scratched, it self-repairs over time, thus maintaining a beautiful appearance for a long period of time. [Brief explanation of the drawing]

[0009] [Figure 1] Figure 1 is a perspective view showing a decorative body according to the first embodiment disclosed herein. [Figure 2] Figure 2 is a cross-sectional view of the decorative element according to the first embodiment, taken along the line II-II shown in Figure 1. [Figure 3] Figure 3 is a perspective view of an example of a decorative element according to the second embodiment, as seen from above. [Figure 4] Figure 4 is a perspective view of an example of a decorative element according to the second embodiment, as seen from the rear. [Figure 5] Figure 5 is a schematic cross-sectional view showing a method for manufacturing a decorative body according to the second embodiment. [Figure 6] Figure 6 is a schematic cross-sectional view showing a method for manufacturing a decorative body according to the second embodiment. [Figure 7] Figure 7 is a cross-sectional view showing a laminated film used in a decorative body according to the second embodiment. [Modes for carrying out the invention]

[0010] (First Embodiment) Figure 1 is a cross-sectional view showing an example of a decorative body according to the first embodiment disclosed herein, and Figure 2 is a cross-sectional view of the decorative body 10 according to this embodiment along the line II-II shown in Figure 1. As shown in Figures 1 and 2, the decorative body 10 of this embodiment comprises a main body 3 having a display surface 3a and a laminated film 25 covering the display surface 3a. The laminated film 25 has a resin substrate 9, a self-healing layer 1 provided on the side of the resin substrate 9 opposite to the main body 3, and an adhesive layer 7 directly or indirectly provided on the side of the resin substrate 9 facing the main body 3. In the decorative body 10 of this embodiment, a printing layer 5 having a printed section 6 is provided on the display surface 3a of the main body 3. The printed section 6 is formed from ink or the like, and for example, a photograph or a picture is displayed. Figure 2 shows an example in which the printing layer 5 is provided on the display surface 3a of the main body 3, but the printing layer 5 only needs to be provided between the main body 3 and the back surface of the resin substrate 9. The decorative body 10 may further include a base 8 (attached component) that supports the main body 3 so that it can stand on its own, if necessary.

[0011] The main body 3 is formed from, for example, a transparent glass plate or acrylic plate, and its planar shape can be a roughly quadrilateral, a roughly circular shape, or any other shape to match the photograph or image. The main body 3 only needs to have a thickness sufficient to stand on its own, for example, it may be between 0.5 mm and 30 mm, or between 1 mm and 10 mm. If the main body 3 is too thin, it will be easily damaged, and if it is too thick, it will be bulky and difficult to transport.

[0012] The self-healing layer 1 is a layer that has the function of naturally restoring itself to its original state even if it is damaged or deformed by intermolecular interactions such as elastic force or intermolecular forces. Therefore, even if the self-healing layer 1 is damaged, it will be naturally repaired over time and will maintain its transparency. The self-healing layer 1 is a layer composed of, for example, so-called self-healing material or self-restoring material. The self-healing layer 1 can be formed by drying and curing a paint containing a thermosetting or ultraviolet (UV) curing resin. The paint used may contain a solvent or be a solvent-free paint. Solvent-free paints are preferable from an environmental standpoint because organic solvents do not volatilize. UV-curing paints have the advantage of being less prone to foaming during film formation and having a shorter curing time than thermosetting paints. On the other hand, when forming the self-healing layer 1 using a paint containing a thermosetting resin, there is the advantage that the curing of the paint is not inhibited even if a UV absorber is added. In this case, a self-healing layer 1 containing a UV absorber that protects the printed layer 5 and the main body 3 from deterioration by ultraviolet rays can be easily formed.

[0013] In the decorative body 10 of this embodiment, the printed layer 5 of the main body 3 is covered by the laminated film 25, so the deterioration of the printed layer 5 is effectively suppressed. Furthermore, since the self-healing layer 1 of the laminated film 25 is exposed, scratches on the surface of the decorative body 10 are repaired over time. The thickness of the self-healing layer 1 is not particularly limited, but may be, for example, 150 μm or less, or from the viewpoint of manufacturing cost, 100 μm or less, preferably 50 μm or less, and more preferably 20 μm or less. The thickness of the self-healing layer 1 is preferably 2 μm or more, and more preferably 5 μm or more, in order to protect the main body 3 while exhibiting sufficient self-healing function.

[0014] The self-healing layer 1 may also have antifouling properties. For example, the water droplet contact angle measured 10 seconds after dropping 2 mL of water onto the self-healing layer 1 may be 90 degrees or more. Because the self-healing layer 1 has good water repellency, the surface of the decorative body 10 is less prone to dirt.

[0015] The constituent material of the resin base material 9 may be selected from, for example, polyester resins such as polyethylene terephthalate (PET), polystyrene (PS), polyethylene (PE), and polypropylene (PP). The resin base material 9 may be a single-layer resin film composed of these resins or other materials. The resin base material 9 may be a laminate of a plurality of layers composed of the above-mentioned materials. The resin base material 9 is preferably transparent so that the printing layer 5 can be visually recognized. The film thickness of the resin base material 9 is not particularly limited, and may be, for example, 5 μm or more and 200 μm or less, or may be 10 μm or more and 150 μm or less.

[0016] The adhesive constituting the adhesive layer 7 is not particularly limited, and can be selected from acrylic, urethane, polyester, silicone, rubber, etc. Also, any one or more adhesives selected from solvent-based, water-based (emulsion-based), and solventless types can be used. The adhesive layer 7 may be formed of a thermosetting adhesive composition cured by heating after adding a crosslinking agent, or may be formed of an electromagnetic wave-curing adhesive composition cured by irradiating electromagnetic waves such as ultraviolet rays after adding a photoinitiator. When using a thermosetting adhesive, one type or a mixture of two or more types selected from known isocyanate-based crosslinking agents, chelate-based crosslinking agents, and epoxy-based crosslinking agents can be used as the crosslinking agent.

[0017] The thickness of the adhesive layer 7 is not particularly limited, and for example, 2 μm or more and 100 μm or less may be sufficient. If it is 5 μm or more and 50 μm or less, it is easy to ensure an adhesive force such that the laminated film 25 does not peel off from the main body portion 3 and the printing layer 5 during use, and the manufacturing cost is not likely to become excessive, so it is preferable.

[0018] The main body part 3 may be composed of a transparent and hard plate-like material, and does not necessarily have to be formed of a glass plate or an acrylic plate. As will be described later, the printing layer 5 may be provided directly on the back surface of the resin base material 9, or a sheet having a printing part 6 may be provided as the printing layer 5 between the display surface 3a of the main body part 3 and the back surfaces of the resin base material 9 and the adhesive layer 7. When the printing layer 5 is provided on the back surface of the resin base material 9, a general-purpose acrylic plate or the like without a printing layer provided thereon can be used as the main body part 3.

[0019] (Second Embodiment) FIG. 3 is a perspective view of an example of the decorative body according to the second embodiment as viewed from the upper surface side, and FIG. 4 is a perspective view of an example of the decorative body according to the present embodiment as viewed from the back surface side. FIGS. 5 and 6 are cross-sectional views showing a manufacturing method of the decorative body according to the present embodiment, and FIG. 7 is a cross-sectional view showing a laminated film used for the decorative body according to the present embodiment. In FIGS. 5 and 6, some shapes such as the unevenness of the members are simplified and shown.

[0020] The decorative body 30 of the present embodiment is a so-called can badge. That is, the decorative body 30 includes a front cover 12 made of metal, a metal back cover 14 fitted to the peripheral edge portion 12b of the front cover 12 with a peripheral edge portion 14b, an attachment tool (accessory member) 16 provided on the back surface of the back cover 14, and a laminated film 20 covering the upper surface (display surface) 12a of the front cover 12. The laminated film 20 has a resin base material 29 showing permeability and a self-healing layer 21 provided on the upper surface of the resin base material 29. In the decorative body 30 of the present embodiment, the laminated film 20 does not have an adhesive layer, and a printing layer 22 is provided on the back surface of the laminated film 20 (resin base material 29). The entire printing layer 22 is a printing part formed of ink.

[0021] The laminated film 20 is fixed by its peripheral edge 20b being fitted together with the peripheral edge 12b of the front cover 12 and the peripheral edge 14b of the back cover 14. The front cover 12 is formed as a circular metal plate with its peripheral edge facing downwards, and the back cover 14 is formed as a circular metal plate with its peripheral edge facing upwards. The laminated film 20 is also circular to match the shape of the front cover 12. In the decorative body 30 of this embodiment, the front cover 12 and the back cover 14, which are fitted together, constitute the main body, and this main body is a component that corresponds to the main body 3 in the decorative body 10 of the first embodiment.

[0022] The printed layer 22 displays photographs, images, etc., and these images, etc., are visible from the display surface 12a side (front cover 12 side) of the main body. In the decorative body 30 of this embodiment, the self-healing layer 21 of the laminated film 20 is exposed, allowing the decorative body 30 to self-repair over time even if it is scratched. Furthermore, since the self-healing layer 21 is more flexible than known hard coat layers, cracks are less likely to occur even at the peripheral edge 20b of the laminated film 20, which is formed by deep folding.

[0023] Next, the manufacturing method of the decorative body 30 of this embodiment will be described. As shown in Figure 5, a printed layer 22 is formed on the back surface 20a of the pre-prepared laminated film 20 by inverting image data using a commercially available printer. Subsequently, the laminated film 20 is processed into a circular shape with a diameter, for example, about 1 cm to 3 cm larger than the planar outer shape of the front cover 12, using a known die-cutting process. Here, a circular cutter may be used to process the laminated film 20.

[0024] Next, as shown in Figure 6, the front cover 12 and the laminated film 20 are placed from bottom to top in the material holding section for the front cover of a commercially available button badge manufacturing machine (not shown), and the laminated film 20 is pressed onto the display surface 12a of the front cover 12 by pressing in this state. Then, the back cover 14 is placed in the material holding section for the back cover, and the front cover 12 is placed on the back cover 14, and the front cover 12 is pressed into the back cover 14 by pressing in this state, so that the front cover 12, with its display surface 12a covered by the laminated film 20, is fitted onto the back cover 14. At this time, the peripheral edge 20b of the laminated film 20 that protrudes from the peripheral edge 12b of the front cover 12 is fixed by being sandwiched between the front cover 12 and the back cover 14. This makes it possible to manufacture the decorative body 30.

[0025] According to the decorative body 30 of this embodiment, since the printing layer 22 is provided on the back surface of the laminated film 20, photographs and images can be printed using a general-purpose printer, etc., and it can be manufactured at a lower cost compared to cases where paper with a printed area formed on it is sandwiched between the display surface 12a of the front cover 12 and the laminated film instead of the printing layer 22, or when the printing layer 22 is provided on the display surface 12a of the front cover 12.

[0026] (Other embodiments) The decorative objects disclosed herein may be acrylic stands or badges, but may also be cards, keychains, mobile phone straps, etc., printed with images or photographs of characters, etc. [Examples]

[0027] The present invention will be described in more detail below based on examples, but the present invention is not limited to these examples. [Creation of decorative objects]

[0028] <Example 1> A laminated film was prepared, consisting of a protective film, a 10 μm thick self-healing layer, and a 100 μm thick PET film (resin substrate), in that order from top to bottom. After forming a predetermined printing layer on the back of the resin substrate, the laminated film was processed into a circular shape using a circular cutter. The front cover and the laminated film with the protective film removed were placed in the first component holder section of a commercially available button badge manufacturing machine (for 58 mm diameter badges) from bottom to top. The laminated film was pressed onto the display surface of the front cover by pressing from above with a pressing member. At this time, the front cover was held by the pressing member. Next, the bottom cover was placed in the second component holder section of the button badge manufacturing machine and moved directly below the front cover. In this state, the front cover was fitted onto the back cover by pressing from above to produce a button badge (decorative body). A commercially available fluorine-based self-healing paint was used as the paint to form the self-healing layer of the laminated film.

[0029] <Example 2> A button badge was manufactured using the same procedure as in Example 1, except that a two-component, thermosetting, urethane-based self-healing paint was used as the coating for forming the self-healing layer.

[0030] <Comparative Example 1> A button badge was manufactured using the same procedure as in Example 1, except that a PET film with a thickness of 100 μm was used instead of a laminated film.

[0031] <Reference example 1> A button badge was manufactured in the same manner as in Example 1, except that the laminated film used consisted of a PET film with a thickness of 100 μm and a hard coat layer with a thickness of 5 μm formed on one side of the PET film. Here, the laminated film was pressed onto the display surface of the front cover so that the hard coat layer was exposed on the outside.

[0032] [Measurement method] <Abrasion resistance test> The laminated films used in Examples 1 and 2 and Reference Example 1, and the PET film used in Comparative Example 1 were each cut to an arbitrary size (e.g., 10 cm x 10 cm) to create test specimens. The surface (non-printed side) of these test specimens was scratched multiple times with a brass brush, and it was observed whether or not the scratches were repaired.

[0033] <Water droplet contact angle test> A 2 mL drop of water was placed on the surface of the test specimen, and the contact angle of the water droplet was measured using a contact angle meter 10 seconds after dropping.

[0034] <Stain resistance test> After drawing a wavy line on the surface of the test specimen with an oil-based marker, we evaluated whether the ink could be wiped off with a cloth. A circle (○) indicated complete ink removal, a triangle (△) indicated ink removal but some residue, and a cross (×) indicated complete ink removal.

[0035] <Processability Test> In Examples 1 and 2, Comparative Example 1, and Reference Example 1, the condition of the film when producing button badges by press processing was observed and evaluated. A circle (○) indicated that the badges were produced without problems; a triangle (△) indicated that the badges were produced but cracks occurred in the film; and a cross (×) indicated that the badges could not be produced due to film breakage, poor adhesion, etc.

[0036] [Measurement results] The results of each measurement are summarized in Table 1. [Table 1]

[0037] The abrasion resistance test results showed that scratches made by a brass brush on the laminated film used in Example 1 disappeared within 4 hours. On the laminated film used in Example 2, scratches made by a brass brush disappeared within 1 second. In contrast, numerous scratches were observed in the PET film used in Comparative Example 1 after the test. Furthermore, no scratches were observed in the laminated film used in Reference Example 1 due to the brass brush.

[0038] The water droplet contact angles of the laminated films used in Examples 1 and 2 were 98 degrees and 104 degrees, respectively, both above 90 degrees, confirming good water repellency. The water droplet contact angle of the PET film used in Comparative Example 1 was 60 degrees, confirming that it did not have water repellency. The water droplet contact angle of the laminated film used in Reference Example 1 was 105 degrees, confirming good water repellency.

[0039] Regarding stain resistance, the laminated film used in Example 1 showed good stain resistance, while the laminated film used in Example 2 allowed for the removal of magic marker ink, but left traces. The PET film used in Comparative Example 1 showed no stain resistance, while the laminated film used in Reference Example 1 showed good stain resistance.

[0040] Regarding processability, the button badges produced in Examples 1 and 2 and Comparative Example 1 could be processed without any particular problems. In contrast, in the button badge produced in Reference Example 1, some cracking of the film was observed in the folded portion of the peripheral edge of the laminated film. [Industrial applicability]

[0041] The decorative elements disclosed herein can be used as consumer-oriented decorative products such as character cards, acrylic stands, keychains, pendants, badges, and straps. [Explanation of symbols]

[0042] 1, 21 Self-healing layer 3. Main body 3a, 12a display surface 5, 22 printing layer 6 Printing Department 7. Adhesive layer 8 bases 9, 29 Resin base material 10, 30 decorative elements 12 Front lid 12b Peripheral area 14 Case back 14b Peripheral area 16 Mounting hardware 20, 25 laminated film 20a Back of laminated film

Claims

1. A main body having a display surface, A laminated film covering the display surface of the main body, comprising a resin substrate and a self-healing layer provided on the side of the resin substrate opposite to the main body. A decorative element equipped with these features.

2. The decorative body according to claim 1, wherein a printing layer having a printed portion is provided between the display surface of the main body and the back surface of the resin substrate.

3. The decorative body according to claim 1, wherein the laminated film has an adhesive layer provided directly or indirectly on the side of the resin substrate opposite to the self-healing layer.

4. The decorative body according to any one of claims 1 to 3, wherein the thickness of the self-healing layer is 20 μm or less.

5. The decorative body according to claim 1, wherein the water droplet contact angle measured 10 seconds after dropping 2 mL of water onto the self-healing layer is 90 degrees or more.

Images