cream-like substance

A creamy product with polyacrylic acid emulsion, potato starch, and mineral oil achieves bright and vivid colors by controlling brightness and saturation, addressing the limitations of subtractive color mixing in existing materials.

JP7821930B1Active Publication Date: 2026-02-27EPOCH COMPANY LTD
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Patent Information

Application Number
JP2025098288
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2025-06-12
Publication Date
2026-02-27
Estimated Expiration
2045-06-12

AI Technical Summary

Technical Problem

Existing cream-like materials struggle to achieve bright and vivid colors due to subtractive color mixing, limiting creativity and playability.

Method used

A creamy product composed of polyacrylic acid emulsion, potato starch, phenoxyethanol, a coloring agent, and mineral oil, which provides translucency and specific brightness and saturation levels to enhance color vividness.

Benefits of technology

The product achieves visually vibrant and playful colors, especially with high luminosity colors, and can mimic fluorescent colors without additional additives, enhancing play experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a creamy substance having a vivid appearance and a rich playfulness. [Solution] One form of cream contains polyacrylic acid emulsion, potato starch, phenoxyethanol, coloring agent, and mineral oil, is translucent, and when formed into a shell shape, has an observed brightness of 80% or more and a saturation of 60% or less.
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Description

[Technical Field]

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

[0002] Toys have been proposed that use tubes filled with creamy resin to create imitation foods such as cakes. For example, Patent Document 1 discloses a creamy substance that is dispensed from a squeezing tool to create decorative toys. This creamy substance is made from a creamy resin, and after being squeezed out, it dries and solidifies. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2023-060727 Summary of the Invention [Problem to be solved by the invention]

[0004] A wide variety of colors have been proposed for cream-like materials. However, since coloring is basically achieved by subtractive color mixing, in which coloring agents are added to the cream-like material, it is not easy to achieve bright colors. In order to expand the scope of creation and improve playability, more vivid cream-like materials are desired.

[0005] The present disclosure aims to provide a creamy product that is visually vibrant and playful. [Means for solving the problem]

[0006] The present disclosure A craft for creating decorative toys One embodiment of the ream comprises a polyacrylic acid emulsion, potato starch, phenoxyethanol, a colorant, and mineral oil; It has a pink color, It has translucency, and when formed into a shell shape, the observed brightness is 80% or more and the saturation is 60% or less. [Effects of the Invention]

[0007] According to the present disclosure, it is possible to provide a creamy product that is visually vibrant and playful. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 10 is a diagram showing an example of use of a cream-like substance. [Figure 2] 1 is a list of ingredients in an example of a cream product. [Figure 3] 1 is a list of ingredients in an example of a cream product. [Figure 4] 1 is a table of ingredients in a comparative example of a cream-like product. [Figure 5] 1 is a table of ingredients in a comparative example of a cream-like product. [Figure 6] FIG. 1 is an explanatory diagram of a method for evaluating a creamy substance. [Figure 7] FIG. 1 is an explanatory diagram of a method for evaluating a creamy substance. [Figure 8] 1 shows the evaluation results of examples and comparative examples of yellow creamy products. [Figure 9] 1 shows the evaluation results of examples and comparative examples of green cream products. [Figure 10] 1 shows the evaluation results of examples and comparative examples of purple cream products. [Figure 11] 1 shows the evaluation results of examples and comparative examples of blue cream products. [Figure 12] 1 shows the evaluation results of examples and comparative examples of red cream products. [Figure 13] 1 shows the evaluation results of examples and comparative examples of pink cream products. [Figure 14] 1 shows the evaluation results of an orange cream product according to an example and a comparative example. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings. FIG. 1 is a front view of a squeezer 20. The squeezer 20 includes a translucent and flexible container 21 for containing a creamy material 10, and a nozzle 22 connected to one end of the container 21. The container 21 is formed by stacking two flexible sheet members made of polyvinyl chloride resin or the like and welding their sides together by thermocompression. The rear end of the container 21 opposite the nozzle 22 is sealed with the creamy material 10 contained therein by stacking two sheet members and welding them together by thermocompression. Note that other welding methods, such as ultrasonic welding, may also be used.

[0010] The creamy material 10 is dispensed using a squeezer 20 to create a decorative toy. The creamy material 10 is dispensed from a discharge port 221 (for example, a star-shaped discharge port) at the tip of the squeezer 20, and can be arranged on a creation surface 50a of a decorative body 50 that resembles a food such as a cake, thereby creating a decorative toy.

[0011] The creamy material 10 is formed by adding preservatives and the like to a synthetic resin such as an acrylic resin, and has the property of solidifying when it comes into contact with air and dries. The creamy material 10 is a creamy resin that can be colored in various colors, such as light blue, pink, and white, using coloring agents (e.g., food additive coloring agents). The resin used in the creamy material 10 of this embodiment is, for example, a polyacrylic acid emulsion containing acrylic acid, a surfactant, water, and the like.

[0012] The polyacrylic acid emulsion is formed by emulsifying an acrylic monomer, a copolymerizable monomer, and a functional monomer in water in the presence of a surfactant, followed by polymerization. In this embodiment, butyl acrylate is used as the acrylic monomer, styrene as the copolymerizable monomer, and acrylic acid as the functional monomer.

[0013] Figures 2 and 3 are ingredient tables for the cream products of Examples 1 to 14. Figures 4 and 5 are ingredient tables for the cream products of Comparative Examples 1 to 14. Figures 2 to 5 show the content of each component in [g] when the total amount of polyacrylic acid emulsion, potato starch, phenoxyethanol, coloring agent, and mineral oil is taken as 100 g. In other words, Figures 2 to 5 show the parts by mass (content ratio) of each component when the total amount of polyacrylic acid emulsion, potato starch, phenoxyethanol, coloring agent, and mineral oil is taken as 100 parts by mass.

[0014] Examples 1 and 2 are colored yellow using phthalocyanine green (pigment), yellow fluorescent dye, and N,N-ethylenebis(stearic acid amide) as colorants in a weight ratio of 6:400:594. Examples 3 and 4 are colored green using phthalocyanine green (pigment) and yellow fluorescent dye as colorants in a weight ratio of 3:2. Examples 5 and 6 are colored purple using Blue No. 1 and Red No. 106 as colorants in a weight ratio of 18:7. Examples 7 and 8 are colored blue using Blue No. 1 as colorant.

[0015] In Examples 9 and 10, Red No. 104 was used as a coloring agent, resulting in a red color. In Examples 11 and 12, Red No. 106 was used as a coloring agent, resulting in a pink color. In Examples 13 and 14, Red No. 104 and Yellow No. 4 were used as coloring agents in a weight ratio of 96.15:3.85, resulting in an orange color. The coloring agents used in Examples 5 to 14 were all food dyes.

[0016] Furthermore, Examples 1 to 14 show examples in which the same color was formed into different shapes: a shell shape (Examples 1, 3, 5, 7, 9, and 11) in which a round-tip nozzle with a circular opening was used to extrude a hemispherical shape using multiple shell nozzles, and a flat plate shape (Examples 2, 4, 6, 8, 10, and 12) in which a flat plate shape was formed using a silicone mold with a fixed depth. The shell-shaped creamy material 10 had a height of approximately 4 mm, a width of approximately 8 mm, and a length of each shell portion of approximately 10 mm, with the total length of the five shell portions being approximately 50 mm. The flat-plate-shaped creamy material 10 had a thickness of approximately 4 mm, a width of approximately 15 mm, and a length of approximately 70 mm.

[0017] The creamy materials 10 of Examples 1 to 14 all contain a polyacrylic acid emulsion, potato starch, phenoxyethanol, a coloring agent, and mineral oil, and are translucent.

[0018] In Figure 4, Comparative Examples 1 and 2 are colored yellow using Yellow No. 4 and Yellow No. 5 as coloring agents. Comparative Examples 3 and 4 are colored green using Blue No. 1 and Yellow No. 4 as coloring agents. Comparative Examples 5 and 6 are colored purple using Red No. 3 and Blue No. 2 as coloring agents.

[0019] In Comparative Examples 7 and 8, Red No. 3, Blue No. 1, and Yellow No. 4 are used as coloring agents and are colored blue. In Comparative Examples 9 and 10, Red No. 3 and Yellow No. 5 are used as coloring agents and are colored red. In Comparative Examples 11 and 12, Red No. 3, Blue No. 2, and Yellow No. 4 are used as coloring agents and are colored pink. In Comparative Examples 13 and 14, Red No. 104 and Yellow No. 4 are used as coloring agents and are colored orange.

[0020] In all cases, the present embodiment (Examples 1 to 14) provided visually brighter and more vivid color development than the conventional Comparative Examples 1 to 14.

[0021] Next, a quantitative evaluation method will be described. In this embodiment, the prepared creamy product 10 was photographed and the vividness of its appearance was evaluated. FIG. 6 is an explanatory diagram of a method for evaluating the creamy product 10. First, the creamy product 10 is photographed using a photographing device 31. A NIKON D850 camera and a NIKON PC-E Micro NIKKOR 85mm camera lens are used as the photographing device 31 used for evaluation. The settings of the photographing device 31 are ISO 400, shutter speed 1 / 100s, f-number f / 5.6, and white balance (WB) 5000K.

[0022] Illumination light L emitted from the light source 33 is irradiated from above and to the left and right at an irradiation angle θ of 45 degrees onto a cream-like product 10 placed as a subject on an imaging table 32. The illumination light L has a luminous flux of 2500 lm and a color temperature of 5000 K. The illumination light L is irradiated onto the cream-like product 10 as diffused light that has passed through tracing paper 34.

[0023] Next, using an appropriate computer, the image data (RGB data format) of the creamy material 10 acquired by the photographing device 31 was converted into data (HSV data) including values ​​of hue, saturation, and volume corresponding to each pixel, and a calculation process was performed. The range of the image extracted for the calculation process is an area R of approximately 1 / 5 of the center in the longitudinal direction of the yellow shell-shaped creamy material 10 and the flat-plate-shaped creamy material 10 shown in Figure 7.

[0024] 8 to 14 are diagrams showing the distribution of saturation and brightness for the creamy materials 10 of Examples 1 to 14. The shell-shaped and flat-shaped creamy materials 10 of each color are compared in evaluation results with creamy materials 10 formed using ingredients of conventional comparative examples.

[0025] 8 to 14, when creamy materials 10 of the same color and shape are compared, the creamy materials 10 of the present embodiment (Examples 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, and 14) all have higher lightness and / or saturation than Comparative Examples 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, and 14. Furthermore, when comparing Examples and Comparative Examples, it was confirmed that the relationship between lightness and saturation tends to differ depending on the color.

[0026] For example, when the cream-like substance 10 having yellow and pink colors was formed into a shell shape, the observed brightness was 80% or more and the saturation was 60% or less (Examples 1 and 11), but compared to the comparative example, the saturation was about 40% lower and the brightness was about 10% higher (Example 1), or the lower limit of the brightness was about 20% higher (Example 11).

[0027] The yellow creamy material 10 is distributed over the entire area where the brightness is 80% or more and the saturation is 60% or less (Example 1), and the pink creamy material 10 is distributed over the entire area where the brightness is 85% or more and the saturation is 60% or less (Example 11).

[0028] The yellow or green cream-like material 10 has a wavelength band (peaking at approximately 555 nm) in which humans have high photopic luminosity, so the color appears vivid even with low saturation. The yellow cream-like material 10 has a lower saturation than the conventional comparative example 1, so it has a transparent appearance and can express a color that mimics a fluorescent color without using a phosphor.

[0029] The cream-like substance 10, which exhibited red and orange colors, had an observed brightness of 90% or more when formed into a shell shape and a saturation range (range from lower limit to upper limit) of 90% or more (Examples 9 and 13). However, compared to the comparative examples, the upper limit of the saturation was about 30% higher and the lower limit of the brightness was 20% or more higher (Example 9), or the saturation was the same and the lower limit of the brightness was 20% or more higher (Example 13).

[0030] In particular, the orange creamy material 10 has a saturation ranging over a wide range from approximately 0% to approximately 100% (Example 13).

[0031] The green and blue cream-like material 10, when formed into a shell shape, had an observed brightness ranging from approximately 75% to 100%, and the saturation range (range from lower limit to upper limit) was 90% or more or approximately 100% (Examples 3 and 7). Compared to the comparative example, the upper limit of the saturation was approximately 20% higher and the brightness was about 10% higher (Example 3), or the upper limit of the saturation was approximately 20% higher and the lower limit of the brightness was the same (Example 7).

[0032] The purple cream-like substance 10, when formed into a shell shape, was observed to have a brightness of 60% or more and a saturation of 60% or less (Example 5), resulting in a saturation distribution range that was approximately 40% (approximately 20% to 40%) wider than in the comparative example.

[0033] The cream-like material 10 can have a bright, sparkling appearance by increasing either or both of its brightness and saturation and forming it transparent. In particular, this difference in tendency can be seen by forming it three-dimensionally with irregularities, such as a shell shape, which broadens the observed color appearance (specifically, the distribution range of saturation or brightness due to reflected light), increasing the sparkle and vividness of the cream-like material 10. Therefore, when actually playing with the cream-like material 10, it appears even more vivid.

[0034] The creamy material 10 contains mineral oil, which allows for a higher potato starch content (approximately 8%) and a lower content of polyacrylic acid (approximately 85%), which causes cloudiness. This allows for a smaller amount of coloring (0.0001%), preventing a loss of brightness due to subtractive color mixing. Bright neon-like colors can be created without adding fluorescent paints or other additives.

[0035] According to the embodiment of the present disclosure as described above, a cream-like product having the following aspects can be provided.

[0036] The creamy material according to the first aspect contains a polyacrylic acid emulsion, potato starch, phenoxyethanol, a coloring agent, and mineral oil, has translucency, and when formed into a shell shape, has an observed brightness of 80% or more and a chroma of 60% or less.

[0037] According to this embodiment, by setting the brightness high and the saturation low, it is effective to make the color more vivid, especially when a color containing a wavelength with high luminosity (e.g., yellow or pink) is selected as a coloring agent, and therefore it is possible to provide a creamy product that is visually vivid and playful.

[0038] The creamy material according to the second aspect comprises a polyacrylic acid emulsion, potato starch, phenoxyethanol, a colorant, and mineral oil, has translucency, and when formed into a shell shape, has an observed brightness of 90% or more and a saturation range of 90% or more.

[0039] According to this embodiment, by increasing the brightness and setting a wide range of saturation, it is effective to produce a more vivid color when selecting a color (e.g., red or orange) that has relatively few wavelength components with high luminosity as a coloring agent. Therefore, it is possible to provide a creamy product that is vivid in appearance and highly playful.

[0040] The creamy material according to the third aspect comprises a polyacrylic acid emulsion, potato starch, phenoxyethanol, a colorant, and mineral oil, has translucency, and when formed into a shell shape, the observed brightness ranges from 75% to 100%, and the saturation range is 90% or more.

[0041] According to this embodiment, it is possible to provide a creamy product that is more vivid in appearance and enjoyable in play. In particular, by widening the range of brightness to about 75% to 100% and widening the range of saturation, it is possible to widen the observed color gamut and produce vivid colors even for colors with relatively low luminosity (e.g., blue). Therefore, it is possible to provide a creamy product that is more vivid in appearance and enjoyable in play.

[0042] The creamy material according to the fourth aspect comprises a polyacrylic acid emulsion, potato starch, phenoxyethanol, a colorant, and mineral oil, has translucency, and when formed into a shell shape, the observed brightness is distributed over a wide range of 60% or more and 60% or less of chroma.

[0043] According to this embodiment, by widening the range of brightness, even a color with a relatively low luminosity factor (e.g., purple) can be made to have a wider observed color gamut and vivid color development, thereby providing a creamy product that is visually vivid and playful.

[0044] In the creamy product according to a fifth embodiment, the coloring agent is a food coloring.

[0045] According to this embodiment, a safe cream can be formed.

[0046] This concludes the description of the embodiment of the present disclosure, but the aspects of the present disclosure are not limited to this embodiment. [Explanation of symbols]

[0047] 10 Creamy products 20 Squeezing tool 21 Container 22 nozzle 31 Imaging equipment 32 Camera stand 33 Light source 34 Tracing Paper 50 Decorations 50a Creation surface 221 Discharge port L illumination light R region

Claims

1. Polyacrylic acid emulsion, potato starch, phenoxyethanol, coloring agent, and mineral oil, It has a pink color, It has translucency, When formed into a shell shape, the observed brightness is 80% or more and the saturation is 60% or less. Cream for making decorative toys.

2. Polyacrylic acid emulsion, potato starch, phenoxyethanol, coloring agent, and mineral oil, red or orange in color, It has translucency, When formed into a shell shape, the observed brightness is 90% or more and the saturation range is 90% or more. Cream for making decorative toys.

3. Polyacrylic acid emulsion, potato starch, phenoxyethanol, coloring agent, and mineral oil, It has a green color, It has translucency, When formed into a shell shape, the observed brightness ranges from 75% to 100%, and the saturation range is 90% or more. Cream for making decorative toys.

4. 4. The creamy material for making decorative toys according to claim 1, wherein the coloring agent is a food coloring and contains 8% potato starch and 85% polyacrylic acid.

Citation Information

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