Preparation method of colorful chocolate product

Abstract

The invention provides a preparation method of a colorful chocolate product, which comprises the following steps: S1, providing a metal mold which is provided with a mold cavity capable of obtaining a chocolate pouring mold through injection molding; s2, a movable dazzling microstructure pattern is prepared and formed in the mold cavity through a laser engraving process; s3, the metal mold is adopted, food-grade silica gel serves as an injection molding material, a chocolate pouring mold made of a silica gel material is prepared through an injection molding technology, and complementary texture patterns corresponding to the dynamic dazzling microstructure patterns are formed in the chocolate pouring mold; s4, injecting a molten chocolate raw material into the chocolate pouring mold, and carrying out pouring molding to obtain a chocolate product; and S5, taking the chocolate pouring mold as a tray of the chocolate product, and carrying out packaging treatment on the chocolate pouring mold and the tray. According to the chocolate product prepared by the scheme provided by the invention, the colorful patterns are formed on the surface of the chocolate product, so that consumers can be better attracted, and the competitiveness of the product is improved.

Description

Technical Field

[0001] This invention relates to the field of chocolate production technology, and in particular to a method for preparing a colorful chocolate product. Background Technology

[0002] Chocolate is a popular food, and producers strive to attract consumers by improving not only its quality but also its shape and packaging. To shape chocolate into the desired form, molten chocolate is typically poured into a mold and allowed to solidify. After demolding, the desired chocolate shape is obtained. However, current chocolate products on the market suffer from severe homogenization in appearance, failing to offer consumers any surprises. Summary of the Invention

[0003] The purpose of this invention is to provide a method for preparing colorful chocolate products, so as to enhance the appeal of chocolate products to consumers and thus improve the competitiveness of the products.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows: A method for preparing a colorful chocolate product, comprising the following steps: S1. Provide a metal mold, wherein the metal mold is provided with a mold cavity capable of injection molding to obtain a chocolate casting mold; S2. Using a dazzling laser device, dynamic and dazzling microstructure patterns are formed in the mold cavity through laser engraving technology; S3. Using the metal mold and food-grade silicone as the injection molding material, a silicone chocolate casting mold is prepared by injection molding process. The chocolate casting mold has a complementary texture pattern corresponding to the dynamic microstructure pattern. S4. Molten chocolate raw materials are injected into the chocolate casting mold and cast to obtain a chocolate product; wherein, through the transfer of the complementary texture pattern, the surface of the chocolate product is formed with the dynamic microstructure pattern. S5. The chocolate casting mold is used as a tray for packaging the chocolate product.

[0005] In the specific solution, step S2 includes: A polished mirror area is formed on the surface of the mold cavity by a polishing process; The dynamic microstructure pattern is formed by laser engraving on the polished mirror area.

[0006] In the specific scheme, in step S3, the prepared chocolate casting mold includes multiple casting grooves arranged in an array, and the bottom surface of each casting groove is formed with a complementary texture pattern.

[0007] In the specific solution, in step S3, during the continuous batch injection molding process of preparing the chocolate casting mold, when the predetermined number of injection molding cycles is reached, the mold cavity is cleaned; the cleaning process includes: Commercially available mold cleaning solution is diluted with water in a predetermined ratio to prepare a cleaning agent. The mold cavity is cleaned using the cleaning agent when the temperature of the mold cavity is 110℃~130℃. Rinse the mold cavity with clean water and then dry it.

[0008] In the specific scheme, the predetermined number of cycles is 1500 to 2000 cycles.

[0009] In the specific solution, commercially available mold cleaning solution is mixed with water at a volume ratio of 1:(2.5~3.5) to dilute and prepare the cleaning agent.

[0010] In the specific solution, step S4 includes: The chocolate casting mold is heated to soften it; The molten chocolate raw material is poured into the chocolate casting mold and pressed to shape it; The chocolate casting mold is transferred to a refrigeration device and solidified at low temperature to obtain the chocolate product.

[0011] In the specific scheme, the dynamic microstructure pattern is divided into M sub-regions, and each sub-region forms a dazzling texture. Based on the difference in the filling angle of the dazzling texture in the sub-region, the M sub-regions can present N different colors. The filling angle of the dazzling texture in all sub-regions corresponding to the same color is the same, and the filling angle of the dazzling texture in the sub-regions corresponding to different colors is different. Wherein, M corresponds to the nth color. n The sub-regions are discretely distributed within the range of the dynamic microstructure pattern; Among them, M, N and M n They are positive integers, n = 1, 2, ..., N. N=6~15.

[0012] In the specific scheme, the boundary outline of the sub-region is a polygon, a circle, an ellipse, or any irregular shape; a blank area without colorful texture filling is set between any two adjacent sub-regions.

[0013] In the specific solution, the iridescent texture includes a regularly arranged raised grid of lines formed in the sub-region. The height H of the raised grid is 1μm~1.5μm, the line width D is 0.01mm~0.02mm, and the line spacing L is 0.03mm~0.1mm.

[0014] The method for preparing colorful chocolate products provided in this invention produces chocolate products with colorful patterns on their surface, which can attract consumers more effectively and enhance the product's competitiveness. Attached Figure Description

[0015] Figure 1 This is a process flow diagram of the preparation method of the colorful chocolate product in the embodiments of the present invention; Figure 2 This is a schematic diagram of the dynamic microstructure pattern in an embodiment of the present invention; Figure 3 This is a structural illustration of the color rendering of the dynamic microstructure pattern in the embodiments of the present invention; Figure 4 Is it like this? Figure 2 An enlarged schematic diagram of part A in the diagram; Figure 5 This is a cross-sectional view of the dynamic microstructure pattern on the mold cavity in an embodiment of the present invention; Figure 6 These are illustrations of the iridescent effects of iridescent chocolate products prepared in some specific examples of this invention. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the present invention clearer, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the drawings. The embodiments of the present invention shown in and described with reference to the drawings are merely exemplary, and the present invention is not limited to these embodiments.

[0017] It should be noted that the same or similar reference numerals in the accompanying drawings of the embodiments of the present invention correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0018] It should also be noted that, in order to avoid obscuring the invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the invention are shown in the accompanying drawings, while other details that are not closely related to the invention are omitted.

[0019] This invention provides a method for preparing a colorful chocolate product. (See attached document.) Figure 1 The preparation method includes the following steps: S1. Provide a metal mold, wherein the metal mold is provided with a mold cavity capable of injection molding to obtain a chocolate casting mold.

[0020] S2. Using a dazzling laser device, a dynamic and dazzling microstructure pattern is formed in the mold cavity through laser engraving technology.

[0021] S3. Using the aforementioned metal mold and food-grade silicone as the injection molding material, a silicone chocolate casting mold is prepared through an injection molding process. The chocolate casting mold contains a complementary texture pattern corresponding to the dynamic microstructure pattern.

[0022] S4. Molten chocolate raw materials are injected into the chocolate casting mold and cast to obtain a chocolate product; wherein, through the transfer of the complementary texture pattern, the surface of the chocolate product is formed with the dynamic microstructure pattern.

[0023] S5. The chocolate casting mold is used as a tray for packaging the chocolate product.

[0024] Based on the above preparation process, dynamic microstructure patterns are engraved in the mold cavity of the initial metal mold. During the subsequent injection molding of the chocolate casting mold and the casting of the chocolate product, the dynamic microstructure patterns are transferred sequentially, so that the surface of the final chocolate product has dynamic microstructure patterns and forms a dazzling effect, which can attract consumers more and enhance the competitiveness of the product.

[0025] Specifically, in step S1, the metal mold can be any existing metal mold used for injection molding chocolate casting molds, which typically includes an upper mold and a lower mold. The specific shape of the mold cavity corresponds to the chocolate casting mold to be produced.

[0026] In some specific embodiments, step S2 includes the following steps: S21. A polished mirror area is formed on the surface of the mold cavity through a polishing process.

[0027] The specific location and size of the polished mirror area in the mold cavity can be set according to actual needs, and the polishing mirror grade of the polished mirror area is preferably A1 grade or above.

[0028] S22. The dynamic microstructure pattern is engraved in the polished mirror area using laser engraving technology.

[0029] The iridescent laser device can be either a picosecond iridescent laser device or a femtosecond iridescent laser device, and the iridescent texture it engraves can present an iridescent effect based on the external ambient light.

[0030] In some specific embodiments, see Figures 2 to 4 The dynamic microstructure pattern 1 is divided into M sub-regions 1a, each sub-region 1a having a vibrant texture 11. The vibrant texture 11 includes regularly arranged raised grid lines 12 formed within the sub-region 1a. Based on the difference in the fill angle of the vibrant texture 11 within the sub-region 1a, the M sub-regions 1a can display N different colors. For the same color, the fill angle of the vibrant texture 11 in all sub-regions 1a is the same; for different colors, the fill angle of the vibrant texture 11 in the sub-regions 1a is different. Wherein, the M sub-regions corresponding to the nth color... n The sub-regions 1a are discretely distributed within the range of the dynamic microstructure pattern 1; wherein, M, N and M n They are positive integers, n = 1, 2, ..., N. .

[0031] It should be noted that, Figure 3 Is with Figure 2 The same structural diagram, Figure 4 yes Figure 2 An enlarged schematic diagram of part A in the diagram. This is to enable those skilled in the art to better understand the solution of this invention application. Figure 3 and Figure 4 Each sub-region 1a in the image has its fill color set to reflect the desired color.

[0032] As a specific example, such as Figure 3As shown, the M sub-regions 1a in this embodiment can display 6 (i.e., N=6) different colors, including yellow, purple, blue, gray, orange, and red. Each color includes multiple sub-regions 1a discretely distributed within the range of the dynamic microstructure pattern 1. The iridescent textures 11 in all sub-regions 1a corresponding to the same color have the same fill angle, while the iridescent textures 11 in sub-regions 1a corresponding to different colors have different fill angles. For example, the iridescent textures 11 in all sub-regions 1a corresponding to purple have the same fill angle, while the iridescent textures 11 in the sub-regions 1a corresponding to purple and blue have different fill angles.

[0033] It should be noted that the filling angle refers to the tilt angle of the iridescent texture 11, which is a commonly used term in iridescent laser engraving process. It is usually defined with the positive X-axis as 0° and the positive Y-axis as 90°.

[0034] It should be noted that the number of color types (the value of N) that the M sub-regions 1a can present, the specific number Mn of sub-regions 1a corresponding to the nth color, and their distribution positions can be set according to actual needs. In a preferred embodiment, the value of N is preferably in the range of 6 to 15.

[0035] The boundary contour of sub-region 1a can be polygonal, circular, elliptical, or any irregular shape. Each sub-region 1a can use the same or different boundary contours. For example, some sub-regions 1a may have polygonal boundary contours, while others may have circular ones. Even sub-regions 1a corresponding to the same color can use different boundary contours. In this embodiment, the boundary contour of sub-region 1a is quadrilateral. Even if all sub-regions use polygonal boundary contours, the specific contour shapes can be different, such as... Figure 3 Although they are all quadrilateral outlines, the size, angle of the hypotenuse, and other characteristics of each quadrilateral outline can be different.

[0036] As a preferred embodiment, in this embodiment, a blank area 13 without iridescent texture filling is provided between any two adjacent sub-regions 1a. By providing the blank area 13, the dynamic iridescent microstructure pattern 1 can present a better iridescent effect. Further, the width of the blank area 13 is preferably 0.15mm~0.2mm.

[0037] Further, see Figure 5 The height H of the raised wire grid 12 is preferably set to 1μm~1.5μm, the line width D is preferably 0.01mm~0.02mm, and the line spacing L is preferably 0.03mm~0.1mm.

[0038] In some specific embodiments, in step S3, the prepared chocolate casting mold includes a plurality of casting grooves arranged in an array, and the bottom surface of each casting groove is formed with a complementary texture pattern.

[0039] In some specific embodiments, in step S3, during the continuous batch injection molding process of preparing the chocolate casting mold, when the number of injection molding cycles reaches a predetermined number, the mold cavity is cleaned.

[0040] In production practice, the applicant discovered that, because the chocolate casting mold is made of silicone, during continuous batch injection molding, a silicone film forms on the surface of the mold cavity as the number of injection molding cycles increases. This prevents the dynamic microstructure patterns in the mold cavity from being accurately transferred to the chocolate casting mold. Therefore, when the number of injection molding cycles reaches a predetermined number, the mold cavity needs to be cleaned to remove the silicone film. In a preferred embodiment, the predetermined number of molding cycles is 1500-2000 cycles.

[0041] In the specific solution, the cleaning process includes the following steps: (1) The commercially available mold cleaning solution is diluted with water in a predetermined ratio to prepare a cleaning agent. The commercially available mold cleaning solution is corrosive, and the mold cavity in the embodiment of the present invention is provided with a fine dynamic microstructure pattern. Therefore, the commercially available mold cleaning solution needs to be diluted before cleaning, otherwise the dynamic microstructure pattern will be easily damaged.

[0042] In a preferred embodiment, commercially available mold cleaning solution is diluted with water at a volume ratio of 1:(2.5~3.5) to prepare the cleaning agent.

[0043] (2) The mold cavity is cleaned with the cleaning agent when the temperature of the mold cavity is 110℃~130℃.

[0044] In production practice, the applicant found that the cleaning agent formed by diluting the mold washing water based on the above steps (1) cannot effectively remove the adhesive film layer if the mold cavity is cooled to room temperature, but can quickly and efficiently remove the adhesive film layer if the mold cavity is not cooled or heated to a temperature of 110℃~130℃.

[0045] Therefore, based on the combination of the above steps (1) and (2), it can effectively protect the dynamic microstructure pattern in the mold cavity while effectively removing the adhesive film layer.

[0046] (3) Rinse the mold cavity with clean water and then dry it.

[0047] In some specific embodiments, step S4 includes the following steps: S41. The chocolate casting mold is heated to soften it. In a preferred embodiment, the chocolate casting mold is heated to 150°C to 180°C.

[0048] S42. The molten chocolate raw material is injected into the chocolate casting mold and pressure is applied to shape it.

[0049] S43. Transfer the chocolate casting mold to a refrigeration device and solidify it under low temperature conditions to obtain the chocolate product. Optionally, the low-temperature curing temperature is set to 10℃~30℃, and more preferably, the curing temperature is set to 10℃~18℃ for rapid curing.

[0050] In production practice, the applicant found that by combining the above steps S41 to S43, namely, heating to soften the chocolate casting mold before casting, applying pressure to shape after casting, and then rapidly solidifying and molding at low temperature (10℃~18℃), the dynamic microstructure pattern can be better transferred to the prepared chocolate product.

[0051] In step S5, the chocolate casting mold is used as a tray for packaging the chocolate product. When the user unpacks the product and removes it from the chocolate casting mold, the dynamic microstructure pattern is exposed, creating a dazzling effect on the surface of the chocolate product based on ambient light.

[0052] Figure 6 Illustrations show the iridescent effects of chocolate products in specific examples. Since the feature of this application is to enable chocolate products to exhibit iridescent effects, in order to enable those skilled in the art to better understand the solution of this invention, Figure 6 It retains its vibrant colors.

[0053] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for preparing a colorful chocolate product, characterized in that, Including the following steps: S1. Provide a metal mold, wherein the metal mold is provided with a mold cavity capable of injection molding to obtain a chocolate casting mold; S2. Using a dazzling laser device, dynamic and dazzling microstructure patterns are formed in the mold cavity through laser engraving technology; S3. Using the metal mold and food-grade silicone as the injection molding material, a silicone chocolate casting mold is prepared by injection molding process. The chocolate casting mold has a complementary texture pattern corresponding to the dynamic microstructure pattern. S4. Molten chocolate raw materials are injected into the chocolate casting mold and cast to obtain a chocolate product; wherein, through the transfer of the complementary texture pattern, the surface of the chocolate product is formed with the dynamic microstructure pattern. S5. The chocolate casting mold is used as a tray for packaging the chocolate product.

2. The preparation method according to claim 1, characterized in that, Step S2 includes: A polished mirror area is formed on the surface of the mold cavity by a polishing process; The dynamic microstructure pattern is formed by laser engraving on the polished mirror area.

3. The preparation method according to claim 1, characterized in that, In step S3, the prepared chocolate casting mold includes multiple casting grooves arranged in an array, and the bottom surface of each casting groove is formed with a complementary texture pattern.

4. The preparation method according to claim 1, characterized in that, In step S3, during the continuous batch injection molding process of preparing the chocolate casting mold, when the number of injection molding cycles reaches a predetermined number, the mold cavity is cleaned. The cleaning process includes: Commercially available mold cleaning solution is diluted with water in a predetermined ratio to prepare a cleaning agent. The mold cavity is cleaned using the cleaning agent when the temperature of the mold cavity is 110℃~130℃. Rinse the mold cavity with clean water and then dry it.

5. The preparation method according to claim 4, characterized in that, The predetermined number of cycles is 1500 to 2000 cycles.

6. The preparation method according to claim 4, characterized in that, The cleaning agent is prepared by diluting commercially available mold cleaning solution with water at a volume ratio of 1:(2.5~3.5).

7. The preparation method according to claim 1, characterized in that, Step S4 includes: The chocolate casting mold is heated to soften it; The molten chocolate raw material is poured into the chocolate casting mold and pressed to shape it; The chocolate casting mold is transferred to a refrigeration device and solidified at low temperature to obtain the chocolate product.

8. The preparation method according to any one of claims 1-7, characterized in that, The dynamic microstructure pattern is divided into M sub-regions, each of which forms a colorful texture. Based on the difference in the filling angle of the colorful texture in the sub-region, the M sub-regions can present N different colors. The colorful textures in all sub-regions corresponding to the same color have the same filling angle, while the colorful textures in sub-regions corresponding to different colors have different filling angles. Wherein, M corresponds to the nth color. n The sub-regions are discretely distributed within the range of the dynamic microstructure pattern; Among them, M, N and M n They are positive integers, n = 1, 2, ..., N. N=6~15.

9. The preparation method according to claim 8, characterized in that, The boundary outline of the sub-region is a polygon, a circle, an ellipse, or any irregular shape; a blank area without colorful texture filling is set between any two adjacent sub-regions.

10. The preparation method according to claim 9, characterized in that, The iridescent texture includes regularly arranged raised grid lines formed in the sub-region, wherein the height H of the raised grid lines is 1μm~1.5μm, the line width D is 0.01mm~0.02mm, and the line spacing L is 0.03mm~0.1mm.

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