seal

Abstract

To provide a decorative seal having durability and weather resistance that can withstand long-term use. [Solution] The decorative sticker 100 is a sticker comprising an exterior 10, a filler 20, and a base material 30, which are integrally and releasably bonded to a plate-shaped separator 40, giving it a three-dimensional shape. It comprises an exterior made of a first resin, a filler made of a transparent second resin and filled inside the exterior, and a base material which is a plate-shaped member with one side, a first surface 30A, facing the filler and whose periphery is bonded to a periphery P1 of the exterior, thereby sealing the filler inside the exterior, and the second resin is made of urethane resin.

Description

[Technical Field]

[0001] The present disclosure relates to seals. [Background technology]

[0002] It is common to stick decorative stickers of animals, characters, etc. on various belongings such as notebooks, briefcases, pass cases, etc. Such decorative stickers are used not only to add visual effects and individuality to belongings, but also to distinguish belongings from those of others.

[0003] Decorative stickers include not only flat stickers in which animals or characters are simply printed on a substrate such as paper, but also three-dimensional stickers that are textured to fit a desired shape. Summary of the Invention [Problem to be solved by the invention]

[0004] Three-dimensional decorative stickers are generally constructed by heat-welding a thin plastic exterior that forms the exterior design to a substrate with an adhesive surface. If the interior consisting of the exterior and substrate is not filled with anything, when an external impact is applied, it may break or deform depending on the strength of the impact, making it difficult to withstand long-term use.

[0005] The present disclosure has been made to solve the above problems, and aims to provide a seal that is durable enough to withstand long-term use and weather resistant. [Means for solving the problem]

[0006] The seal according to the present disclosure comprises an exterior having a predetermined three-dimensional shape and made of a first resin; a filler made of a transparent second resin and filled inside the exterior; and a base material which is a plate-shaped member with one side, the first side, facing the filler and whose periphery is joined to the periphery of the exterior, thereby sealing the filler inside the exterior, and the second resin is made of a urethane resin. [Effects of the Invention]

[0007] According to the present disclosure, a seal can be obtained that is durable enough to withstand long-term use and weather resistant. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a diagram illustrating a decorative sticker according to a first example of the embodiment. FIG. [Figure 2] FIG. 10 is a diagram illustrating a decorative sticker according to a second example of the embodiment. [Figure 3] FIG. 3 is a front view illustrating only the colored layer of the decorative sheet shown in FIG. 2. [Figure 4] 1 is a flowchart illustrating a method for manufacturing a decorative sticker according to an embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] The details of the decorative stickers in the embodiments will be described below with reference to the drawings. In the following embodiments, a basic form will be described as Example 1, and an example form in which a visual effect is further added will be described as Example 2.

[0010] <First Example> 1A and 1B are diagrams illustrating a decorative sticker according to a first example of the embodiment, in which FIG. 1A is a front view and FIG. 1B is a cross-sectional view showing the AA cross section of FIG. 1A.

[0011] The decorative sticker 100 according to the embodiment is a sticker comprising an exterior 10, a filler 20, and a substrate 30, which are integrally joined to a plate-shaped separator 40 in a peelable manner.

[0012] The exterior 10 has a predetermined three-dimensional shape such as an animal or character, and is made of transparent resin. The exterior 10 is manufactured by heating a thin sheet of resin to soften it, and then forming it into the desired three-dimensional shape by vacuum molding.

[0013] The exterior 10 is made of a transparent thermoplastic resin (first resin) such as hard PVC (polyvinyl chloride), PET (polyethylene terephthalate), or PMMA (acrylic).

[0014] As shown in FIG. 1(B), the exterior casing 10 has an outer surface 10A that constitutes the exterior surface of the decorative sticker 100, and an inner surface 10B that constitutes the interior surface of the decorative sticker 100.

[0015] 1 illustrates the three-dimensional shape of a "clione" as the exterior 10, but the form is not limited to this. For example, various shapes can be applied to the exterior 10, such as designs of animals, characters, letters or character strings such as the alphabet, symbols, and geometric shapes.

[0016] The filler 20 is a member filled inside the exterior casing 10, and in this embodiment is made of a transparent urethane resin (second resin). The filler 20 is filled so as to adhere closely to the inner surface 10B of the exterior casing 10 so that no gaps are formed between the filler 20 and the exterior casing 10.

[0017] Urethane resin has advantages such as being easy to obtain and handle, being transparent, and hardening quickly. In addition, urethane resin is non-toxic, does not harm other substances, is weather-resistant, and its hardness can be set to a certain degree. In consideration of these advantages, urethane resin is used as the second resin in this embodiment.

[0018] In this embodiment, a soft urethane resin having a hardness of 10-30 (JIS A 6909) can be used.

[0019] When used as paint, urethane resins are classified as one-component and two-component. The terms one-component and two-component are defined by the number of cans of material (number of types of material) required for use. The second resin in this embodiment may be a one-component urethane resin, but here a two-component urethane resin is used that hardens when the base agent and hardener are mixed. Therefore, the filler 20 can harden at room temperature and has higher resistance to high temperatures and bending strength than when a one-component urethane resin is used.

[0020] As described above, the exterior casing 10 and the filler 20 have been described as being transparent materials, but in this embodiment, "transparent" conceptually includes not only colorless transparency, but also colored transparency with colors such as red, blue, and yellow, and translucency with low transmittance.

[0021] The substrate 30 is a plate-like member having one surface, a first surface 30A, facing the filler 20 and the other surface, a second surface 30B, serving as an adhesive surface. The periphery of the substrate 30 is joined to the periphery of the exterior packaging 10 at P1 shown in FIG. 1(B). With this configuration, the substrate 30 seals the filler 20 inside the exterior packaging 10.

[0022] The substrate 30 has at least a first layer, a second layer, and a third layer in this order from the first surface 30A to the second surface 30B.

[0023] The first layer, resin layer 31, is a layer of colorless and transparent resin, and like the exterior 10, is made of a transparent thermoplastic resin such as hard PVC, PET, or PMMA.

[0024] The second layer, the colored layer 32, is a colorable layer, and is provided to determine the base color of each portion of the decorative sticker 100. The use of this colored layer 32 will be described in the second embodiment.

[0025] The third layer, adhesive layer 33, has the second surface 30B, which is an adhesive surface. This adhesive layer 33 allows the decorative sticker 100 to be removably attached to the separator 40 or to the user's belongings.

[0026] The resin layer 31, the colored layer 32, and the adhesive layer 33 are integrated to form the base material 30. Furthermore, since the resin layer 31 is a thermoplastic resin, the periphery of the resin layer 31 is joined to the periphery of the exterior 10 by heat welding, so the base material 30 can seal the filler 20 inside the exterior 10. Furthermore, since the filler 20 is a urethane resin, it adheres to the resin layer 31.

[0027] The decorative sticker 100 can be removably bonded to the separator 40 via the second surface 30B, which serves as the adhesive surface of the base material 30. When in use, the decorative sticker 100 is peeled off from the separator 40 and attached to various belongings such as a notebook, a document case, or a pass case.

[0028] In addition, urethane resin is used as the material for the filler 20, and it is filled inside the exterior 10 so that no gaps are created between it and the exterior 10, thereby providing the decorative seal 100 with durability and weather resistance that can withstand long-term use.

[0029] <Second Example> 2 is a diagram illustrating a decorative sticker according to a second example of the embodiment. The decorative sticker 200 shown in FIG. 2 is provided with an additional visual effect compared to the decorative sticker 100 shown in FIG.

[0030] The decorative sticker 200 has a pattern 60 representing a smiling face on the face of the "Clione" to create a visual effect. This pattern 60 is formed by printing on the inner surface 10B of the exterior 10.

[0031] In this way, by printing the pattern 60 on the inner surface 10B of the exterior casing 10 instead of the outer surface 10A, the pattern 60 can be prevented from peeling off even if the exterior casing 10 is rubbed.

[0032] Additionally, for visual effect, the decorative sticker 200 has an ornament 50 attached to the chest of the "Clione." The ornament 50 is, for example, a bead, rhinestone, feather, or glitter attached to the outer surface 10A of the exterior casing 10.

[0033] Furthermore, in the decorative sticker 200, the wing feet 70 located on the left and right sides of the body of the "Clione" are constructed in a color different from the other parts. In this way, applying a specific color to the entire three-dimensional shape or to a part of it is realized by applying the corresponding color as a base to the colored layer 32 of the base material 30.

[0034] FIG. 3 is a front view illustrating only the colored layer 32 of the decorative sticker 200 shown in FIG.

[0035] As explained above, the resin layer 31 of the base material 30 is a colorless, transparent resin layer, and the exterior 10 and the filler 20 are also made of transparent materials. Therefore, by applying a base color to a specific portion of the colored layer 32 (the wing foot 70 in the examples of FIGS. 2 and 3), the base color can be made to appear transparent in the specific portion on the outer surface 10A of the exterior 10.

[0036] It should be noted that by providing a colorless and transparent layer instead of the colored layer 32, the entire decorative sticker 200 can be made transparent.

[0037] <Method of manufacturing decorative stickers> Fig. 4 is a flowchart illustrating a method for manufacturing the decorative sticker 200 according to the embodiment. Note that steps S101 and S108 indicated by dashed lines in Fig. 4 are optional processes that are performed as needed. The flowchart in Fig. 4 explains the case where a two-component urethane resin is used as the second resin of the filler 20.

[0038] In step S101, a required pattern is printed on a thin resin sheet made of a first resin.

[0039] Next, in step S102, the resin sheet is vacuum-molded to form the exterior 10. Here, a mold imitating the desired shape is manufactured in advance, and the exterior 10 is manufactured by applying a thin resin sheet that has been softened by heating to this mold.

[0040] In this process, the thin resin sheet is placed against the mold, and then vacuum-molded by sucking air through vacuum suction holes in the mold, thereby forming the resin sheet into the shape of the mold. The resin sheet is then cooled to room temperature, hardening the resin sheet and producing the exterior 10.

[0041] Next, in the case of a two-component resin, in step S103, the base resin and the curing agent are mixed in a predetermined ratio and stirred to produce a urethane resin that will be the material for the filler 20. Note that if a one-component resin is used as the material for the filler 20, this step S103 is omitted.

[0042] Thereafter, in step S104, urethane resin is injected into the interior of the exterior 10 to form the filler 20.

[0043] In step S105, the mixture is left for a predetermined set time. In particular, in the case of a two-component resin, the chemical reaction is unstable immediately after the reaction between the base resin and the curing agent, so leaving the mixture for the set time can prevent uneven curing. Furthermore, leaving the mixture for the set time allows the resin of the filler 20 to adapt to the surrounding environment, stabilizing the curing conditions.

[0044] In this embodiment, the set time for leaving is approximately 6 to 8 hours, but this set time may be changed depending on the materials and compounding ratio of the base resin and curing agent. For the convenience of process management, if the urethane resin is injected in step S104 on the first day, it is simple and preferable to leave it overnight. By doing so, time management is not required. In addition, the urethane resin is also reliably dried.

[0045] Then, in step S106, the periphery of the base material 30 and the periphery of the exterior casing 10 are joined by heat welding using a welder. Note that it is assumed here that the base material 30 has been prepared in advance.

[0046] By this step S106, the filler 20 is sealed inside the exterior packaging 10, and at least the main body of the decorative seal 100 is completed.

[0047] Then, in step S107, the completed decorative sticker 100 is attached to the separator 40, and in step S108, the decorative object 50 is bonded to the outer surface 10A of the exterior casing 10 as required.

[0048] In the present embodiment, as described above, decorative seals 100 and 200 have been described that employ urethane resin for filler 20 and use base material 30 to seal filler 20 inside exterior 10. This makes it possible to obtain a seal that is durable and weather-resistant enough to withstand long-term use. [Explanation of symbols]

[0049] 10 Exterior 10A outer surface 10B Inner surface 20 fillings 30 Base material 30A 1st side 30B 2nd side 31 Resin layer 32 Colored layer 33 Adhesive layer 40 Separator 50 Decorations 60 patterns 70 wing foot 100, 200 decorative stickers

Claims

1. an exterior made of a first resin and having a predetermined three-dimensional shape; a filler made of a transparent second resin and filled inside the exterior; a base material which is a plate-like member having a first surface facing the filler, and whose periphery is joined to the periphery of the exterior, thereby sealing the filler inside the exterior; The second resin is composed of a urethane resin. seal.

2. the second resin is a two-component urethane resin formed by mixing a base resin and a curing agent; The filler is filled into the exterior, and then left for a set time until the second resin hardens, and then sealed by the base material. The seal of claim 1.

3. The second surface, which is the other surface of the base material, is an adhesive surface. The seal according to claim 1 or 2.

4. A predetermined pattern is printed on the inner surface of the exterior. The seal according to claim 1 or 2.

5. the substrate has at least a first layer, a second layer, and a third layer in this order between the first surface and the second surface, the first layer is a colorless and transparent resin layer, the second layer is a colorable layer, The third layer is an adhesive layer and forms the adhesive surface. The seal of claim 3.

6. Beads are bonded to the outer surface of the exterior. The seal according to claim 1 or 2.

7. Rhinestones are bonded to the outer surface of the exterior. The seal according to claim 1 or 2.

8. The blades are joined to the outer surface of the exterior. The seal according to claim 1 or 2.

9. Lame is bonded to the outer surface of the exterior. The seal according to claim 1 or 2.

10. the first resin is polyvinyl chloride; The seal according to claim 1 or 2.

11. Further provided is a plate-shaped separator that contacts the adhesive surface of the base material to protect the adhesive surface. The seal of claim 3.

Images