Molding method

The molding method using a resinous resin mold with a diffraction grating formed from a film addresses the cost issue of traditional chocolate decoration methods, enabling easy and cost-effective decoration of molded bodies.

JP2025065833APending Publication Date: 2025-04-22NTT DOCOMO INC
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Patent Information

Application Number
JP2023175307
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-10-10
Publication Date
2025-04-22

AI Technical Summary

Technical Problem

Existing methods for decorating molded bodies like chocolate require expensive, finely processed molds with concave and convex shapes, making the decoration process costly.

Method used

A molding method using a resinous resin mold with a diffraction grating formed from a film, where the surface with the diffraction grating is processed and the molded body is poured into the mold to create a decorated product.

Benefits of technology

This method allows for easy decoration of molded bodies, reducing costs associated with expensive molds and enabling the creation of products with structural colors and patterns.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a decorating method which can inexpensively produce individual patterns.SOLUTION: A decorating method of the disclosure involves a molding method for a molded body having a diffraction grating. The method includes molding a resin molding mold (silicon resin S), which is made of a resinous (silicon resin) material and has a shape-formed diffraction grating, using a diffraction grating film having a diffraction grating formed therein; processing the surface of the resin molding mold where the diffraction grating is formed; and then molding the molded body by pouring a liquid body to be molded (such as chocolate) into a container A1.SELECTED DRAWING: Figure 3
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Description

[Technical field]

[0001] The present invention relates to a molding method for decorating molded bodies such as chocolates. [Background technology]

[0002] Patent Document 1 describes a method for producing chocolate with a holographic pattern by dispensing liquid chocolate into a mold having an uneven surface and allowing it to solidify. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2005-253340 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, the invention of Patent Document 1 requires a mold with a finely processed uneven shape, and the mold is expensive. Therefore, it is costly to decorate chocolate using such a mold.

[0005] In order to solve the above problems, an object of the present invention is to provide a molding method that can decorate a molded body in a simple manner. [Means for solving the problem]

[0006] The molding method of the present invention is a method for molding a molded article having a diffraction grating, in which a film on which a diffraction grating has been molded is used to mold a resin mold in which the diffraction grating has been molded, and after processing the surface of the resin mold on which the diffraction grating has been molded, the liquid molded article is poured into the resin mold to mold the molded article. Effect of the Invention

[0007] According to the present invention, the molded body can be decorated easily. [Brief description of the drawings]

[0008] [Figure 1] 1A-1D are diagrams illustrating the process steps of the food decoration method using a mold according to the present disclosure. [Diagram 2] 1A to 1C are diagrams illustrating a process for producing a molding die 10 according to the present disclosure. [Diagram 3] FIG. 2 is a diagram showing a process for producing a container A1 in a first method. [Figure 4] FIG. 1 shows processing of silicon resin S by laser irradiation. [Diagram 5] FIG. 13 is a diagram showing a process for producing a container A1 in a second method. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] The embodiments of the present disclosure will be described with reference to the accompanying drawings. Whenever possible, the same parts are designated by the same reference numerals and redundant description will be omitted.

[0010] FIG. 1 is a diagram showing the processing steps of the food decoration method using a mold according to the present disclosure. In the present disclosure, chocolate is used as the food, but the food is not limited to chocolate and any moldable food may be used. For example, the method can be applied to caramel, candy, etc. Also, the food is not limited to food.

[0011] A chocolate producer prepares chocolate as a starting material (S101). Then, a tempering process is performed (S102). Next, the chocolate producer pours the tempered chocolate into a pre-prepared, finely processed mold 10, and performs a casting process (S103). A diffraction grating is molded in this mold 10. The mold 10 of the present disclosure is made of silicon resin and is a mold for molding a molded body such as chocolate, and a method for producing the mold 10 will be described later.

[0012] The chocolate producer places the chocolate poured into the mold 10 in a refrigerator 20 for refrigeration (S104). When the poured chocolate hardens by refrigeration, a diffraction grating is formed on one side of the chocolate. This diffraction grating allows structural colors to be seen on the surface.

[0013] Chocolate with a diffraction grating formed on the entire surface in this way is distributed to stores such as Western-style confectionery shops.

[0014] Next, the process of producing the molding die 10 of the present disclosure will be described. Figure 2 is a diagram showing the production process. Figure 2(a) is a diagram showing a rectangular container A molded from acrylic resin. A diffraction grating film is attached to the bottom surface of this container with the diffraction grating surface facing up.

[0015] FIG. 2(b) is a diagram showing a container A made of acrylic resin into which silicone resin S1 (liquid) is poured. The liquid silicone resin S1 is poured into the container A, and a mold is taken with the container A. A diffraction grating film f is attached to the bottom surface of the container A, and the liquid silicone resin S1 is patterned with the diffraction grating pattern of the diffraction grating film f. In the present disclosure, the diffraction grating pattern may be a pattern that expresses a specific color including invisible light or a visual marker. Note that the visual marker is a marker that can display AR (Augmented Reality) content by reading the marker.

[0016] FIG. 2(c) is a diagram showing a silicon resin S on which a diffraction grating pattern K is patterned using a diffraction grating film. This silicon resin S is solid. In FIG. 2(b), the silicon resin S is patterned with a diffraction grating film f attached thereto. In FIG. 2(c), the silicon resin S is taken out with the diffraction grating film f attached thereto, and the diffraction grating film f is removed.

[0017] Then, by removing the diffraction grating pattern from the silicon resin S in FIG. 2(c) using a predetermined method, a mold for molding any desired pattern can be produced.

[0018] Fig. 2(d) shows a container A1 with the diffraction grating pattern K of the silicon resin S facing upwards, and with its side configured to match the shape of the silicon resin S. This silicon resin S has a diffraction grating pattern processed into it as desired. By pouring a molded body such as chocolate into this container A1, the diffraction grating pattern can be molded into the chocolate.

[0019] 3A and 3B are diagrams showing the process of producing the container A1 in more detail. As shown in Fig. 3A, liquid silicone resin S1 is poured into a container A made of acrylic resin (having a diffraction grating film f disposed on the bottom surface).

[0020] In FIG. 3(b), the silicone resin S1 hardens to become silicone resin S.

[0021] In Figure 3(c), the diffraction grating film f remains attached to one side of the solid silicone resin S, and the process of peeling it off is shown. The diffraction grating film f is a transparent sheet that can be peeled off manually or mechanically.

[0022] In FIG. 3(d), a diffraction grating pattern K is patterned on a silicon resin S.

[0023] In FIG. 3(e), a diffraction grating pattern K is formed on the silicon resin S, which is irradiated with a laser by a laser irradiator 101 to process the silicon resin S.

[0024] Here, the laser irradiation will be explained. Figure 4 is a diagram showing processing of silicon resin S by laser irradiation. As shown in Figure 4(a), a diffraction grating pattern K is formed on the entire surface of the silicon resin S. Since the silicon resin S is made of resin, it can be processed by laser irradiation.

[0025] Then, a diffraction grating pattern K is processed, and in FIG. 4(b) it is modeled on the pattern of the sun.

[0026] In Fig. 3(f), the silicon resin S is placed on the bottom surface of the container A1 with the diffraction grating pattern K facing up. This makes it possible to produce a mold for molding objects such as chocolate. In Fig. 3(a), a rectangular diffraction grating film f is placed in the container A, but the diffraction grating film f may be cut into a desired shape in advance and then placed in the container A. This allows a certain degree of pattern to be formed in advance, and reduces the amount of processing by laser irradiation.

[0027] In Fig. 3, the diffraction grating film f attached to the silicon resin S is peeled off manually or mechanically, but this is not limited to the above. For example, if epoxy resin E is used instead of silicon resin S, it is difficult to peel off the diffraction grating film f. For this reason, the diffraction grating film f is removed using the configuration shown in Fig. 5.

[0028] In FIG. 5(a) and FIG. 5(b), liquid epoxy resin E1 (base resin) is poured in, and then a hardener is mixed in to obtain a solid epoxy resin E.

[0029] Then, in FIG. 5(c), a container Y1 is prepared and solvent Y for dissolving the diffraction grating film f is placed in it. When the epoxy resin E with the diffraction grating film f attached thereto is placed in it, only the diffraction grating film f dissolves, as shown in FIG. 5(d), and only the epoxy resin E is obtained. Generally, diffraction grating films are made of polyester, and can be dissolved with caustic soda sulfate. Any other plastic resin can be used, and they may be made of acrylic, etc.

[0030] As shown in FIG. 5(e), a molding die can be produced by producing a container A1 with this epoxy resin E as the bottom surface.

[0031] Next, the effects of the molding method of the present disclosure will be described. The present disclosure relates to a molding method of a molded body having a diffraction grating. The molded body here is, for example, a food product such as chocolate, but is not limited thereto.

[0032] The diffraction grating film on which the diffraction grating is formed is used to form a resin molding die on which the diffraction grating is formed. This resin molding die is made of, for example, silicon resin.

[0033] Then, after processing the surface of the resin mold (silicon resin) on which the diffraction grating is molded, a liquid molded body (chocolate) is poured into the resin mold to form a molded body. The diffraction grating is imprinted on this molded body, and a pattern due to the diffraction grating can be expressed.

[0034] According to this configuration, a molding die for molding a diffraction grating pattern into a molded article can be easily produced, and therefore a molded article having a diffraction grating pattern can be easily molded.

[0035] In the present disclosure, a resin molding die (silicon resin S) is formed by pouring liquid silicone resin S1 into a molding die having a film formed on the bottom surface.

[0036] The resin molding die may be made of any material that allows the diffraction grating film to be peeled off from the resin molding die when the resin molding die is molded, and in the present disclosure, the material is silicone resin.

[0037] In addition, the diffraction grating film is made of a material that allows only the diffraction grating film to be removed from the resin molding die when the resin molding die is formed. Here, we assume that the resin molding die is made of epoxy resin E, but it can also be applied to the case where the resin molding die is made of silicon resin S.

[0038] In the present disclosure, after a diffraction grating is molded in a resin molding die, the diffraction grating portion is laser processed to form a resin molding die. The laser processing makes the processing easier and enables fine processing. Therefore, the diffraction grating pattern of the resin molding die can be expressed in a variety of ways. In the present disclosure, by laser processing the resin molding die, it is possible to prevent deterioration of the molded body when processing directly on the molded body.

[0039] In the present disclosure, the resin molding die is molded while keeping at least one of the temperature or humidity of the space in which the molded body is produced and the temperature of the resin constant.

[0040] This allows the resin molding die to be molded stably, and also contributes to stabilizing the curing time.

[0041] In the present disclosure, a resin molding die is formed using a diffraction grating that has a bias in the frequency of the color to be expressed, thereby expressing a specific color including invisible light.

[0042] This makes it possible to form a mold for forming a wide variety of patterns into a molded body (such as chocolate).

[0043] In the present disclosure, the molded article may exhibit a visual marker using a diffraction grating.

[0044] The molding method of the present disclosure has the following configuration.

[0045] [1] A method for forming a molded article having a diffraction grating, comprising the steps of: A film on which a diffraction grating is formed is used to form a resin mold in which a diffraction grating is formed; After processing the surface of the resin mold on which the diffraction grating is molded, The liquid molded body is poured into the resin molding die to mold the molded body. Molding method.

[0046] [2] A silicone resin is poured into the mold having the film formed on the bottom surface thereof to form the resin mold. [1] The molding method described above.

[0047] [3] The resin molding die is made of a material that allows the film to be peeled off from the resin molding die when the resin molding die is molded. [2] The molding method described above.

[0048] [4] The film is made of a material that allows only the film to be removed from the resin molding die when the resin molding die is molded. The molding method according to claim 2.

[0049] [5] After the diffraction grating is molded in the resin, the diffraction grating portion is laser-processed to form the resin molded body. The molding method according to any one of [1] to [4].

[0050] [6] The temperature of the resin is kept constant and the resin molding die is molded. The molding method according to any one of [1] to [5].

[0051] [7] The resin molding die is molded using a diffraction grating having a bias in the frequency of the color to be expressed, thereby expressing a specific color including invisible light. The molding method according to any one of [1] to [6].

[0052] [8] The molded body expresses a visual marker by the diffraction grating. The molding method according to any one of [1] to [7].

[0053] [9] The molded body is a food product. The molding method according to any one of [1] to [8].

[0054] Each aspect / embodiment described in the present disclosure may be used alone, in combination, or switched depending on the implementation.

[0055] Although the present disclosure has been described in detail above, it is clear to those skilled in the art that the present disclosure is not limited to the embodiments described in the present disclosure. The present disclosure can be implemented as modified and altered forms without departing from the spirit and scope of the present disclosure as defined by the claims. Therefore, the description of the present disclosure is intended to be illustrative and does not have any limiting meaning on the present disclosure.

[0056] As used in this disclosure, the phrase "based on" does not mean "based only on," unless expressly stated otherwise. In other words, the phrase "based on" means both "based only on" and "based at least on."

[0057] Any reference to an element using a designation such as "first", "second" etc. used in this disclosure does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient way to distinguish between two or more elements. Thus, a reference to a first and a second element does not imply that only two elements may be employed or that the first element must precede the second element in some way.

[0058] When "include," "including," and variations thereof are used in this disclosure, these terms are intended to be inclusive, similar to the term "comprising." Further, when used in this disclosure, the term "or" is not intended to be an exclusive or.

[0059] In this disclosure, where articles have been added due to translation, such as, for example, a, an, and the in English, the disclosure may include that the nouns following these articles are in the plural form.

[0060] In the present disclosure, the term "A and B are different" may mean "A and B are different from each other." The term may also mean "A and B are each different from C." Terms such as "separate" and "coupled" may also be interpreted in the same way as "different." [Explanation of symbols]

[0061] 101...laser irradiator, K...diffraction grating.

Claims

1. A method for forming a molded article having a diffraction grating, comprising the steps of: Using the film on which the diffraction grating is formed, a resin mold is formed on which the diffraction grating is formed; After processing the surface of the resin mold on which the diffraction grating is molded, The liquid molded body is poured into the resin molding die to mold the molded body. Molding method.

2. A silicone resin is poured into the mold having the film formed on the bottom surface thereof to form the resin mold. The molding method according to claim 1.

3. The resin molding die is made of a material that allows the film to be peeled off from the hardened resin molding die when molding the resin molding die. The molding method according to claim 2.

4. The film is made of a material that allows only the film to be removed from the resin molding die when the resin molding die is molded. The molding method according to claim 2.

5. After molding the diffraction grating in the resin molding die, a laser is applied to the diffraction grating portion to mold the resin molding die. The molding method according to claim 1.

6. The resin molding die is molded while keeping constant at least one of the temperature or humidity of the space in which the molded body is produced and the temperature of the resin. The molding method according to claim 1.

7. The resin molding die is molded using a diffraction grating having a bias in the frequency of the color to be expressed, thereby expressing a specific color including invisible light. The molding method according to claim 1.

8. The molded body expresses a visual marker by the diffraction grating. The molding method according to claim 1.

9. The molded body is a food product. The molding method according to claim 1.

Citation Information

Patent Citations

  • Chocolate with hologram pattern, method for producing the same and mold used for the method

    JP2005253340A