Crayon made from recycled cosmetics and method for producing the same

Abstract

To provide a crayon having good appearance made from recycled cosmetics, which can contribute to reducing waste of cosmetics, and a method for producing the same.SOLUTION: There is provided a method for producing a crayon made from recycled cosmetics, the crayon containing solid / powder-based cosmetic powder and wax, the method including: a mixing step in which the solid / powder-based cosmetic powder and wax are heated and mixed at a temperature of 75°C to 115°C to prepare a liquid mixture; and a molding step in which the liquid mixture is supplied into a mold, cooled, and solidified to form a crayon. The mixing step may also involve mixing the solid / powder-based cosmetic powder, the wax, and an oil-based makeup cosmetic material.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a crayon made from recycled cosmetic materials and a method for producing the same. [Background technology]

[0002] Cosmetics, mainly makeup products such as foundation, face powder, eye shadow, blush, and lipstick, are mass-produced and widely distributed on the market. However, cosmetics that do not pass quality standards during the manufacturing stage are discarded in large quantities. Individual consumers also often purchase new products according to the season or trends, and discard cosmetics without using them all.

[0003] In recent years, with the growing awareness of environmental issues, various industries have been working to reduce waste. In the cosmetics industry as well, it is desirable to reduce the amount of cosmetic waste and make effective use of it for the sake of sustainable development.

[0004] As an example of recycling cosmetics, it has been proposed to reuse discarded cosmetics as raw materials for art supplies. For example, Patent Document 1 discloses a paint material made of cosmetics that contains a cosmetic material containing a bodying powder and a coloring material, and that contains three or less types of oil-based ingredients in the top five cosmetics when the ingredients contained are arranged in order of their content. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2020-36169 A Summary of the Invention [Problem to be solved by the invention]

[0006] In order to further reduce waste, it is important to expand the applications for reusing discarded cosmetics. Under such circumstances, the object of the present invention is to provide a crayon with good appearance made from recycled cosmetics, which can also contribute to reducing waste of cosmetics, and a method for producing the same. [Means for solving the problem]

[0007] The present inventors have conducted extensive research to solve the above problems, and as a result have found that the following invention meets the above object, thereby completing the present invention.

[0008] <1> The method for producing crayons using recycled cosmetics comprises a mixing step of heating and mixing a powder of a solid / powder-based cosmetic with wax at a temperature of 75°C or higher and 115°C or lower to prepare a liquid mixture, and a molding step of supplying the liquid mixture to a mold, cooling and solidifying it to form a crayon. <2> The solid / powder-based cosmetic is a discarded cosmetic. <1> The manufacturing method described in <3> In the mixing step, the powder of the solid / powder-based cosmetic material, the wax, and an oil-based makeup cosmetic material are mixed together. <1> or <2> The manufacturing method described in <4> the content of the powder of the solid / powder-based cosmetic, the content of the oil-based makeup cosmetic and the content of the wax in the liquid mixture are any one of the following (a) to (c): <3> The manufacturing method described in (a) 45% by mass to 60% by mass of the powder of the solid / powder-based cosmetic, 5% by mass to 20% by mass of the oil-based makeup cosmetic, and 30% by mass to 45% by mass of the wax (b) 5 to 20% by mass of the powder of the solid / powder-based cosmetic, 50% by mass to 70% by mass of the oil-based makeup cosmetic, and 15% by mass to 30% by mass of the wax (c) 15% by mass to 45% by mass of the powder of the solid / powder-based cosmetic, 5% by mass to 20% by mass of the oil-based makeup cosmetic, and 50% by mass to 75% by mass of the wax <5> The oil-based makeup cosmetic is at least one selected from the group consisting of lipstick, concealer, cream eyeshadow, cream blush, oil-based liquid eyeliner, oil-based liquid lipliner, and oil-based liquid eyebrow. <3> or <4> The manufacturing method described in <6> The solid / powder-based cosmetic is at least one selected from the group consisting of powder foundation, pressed powder, loose powder, powder eyeshadow, powder blush, powder face color, powder nose shadow, powder eyebrow, powder eyeliner, and highlighter. <1> from <5> 13. The method for producing a semiconductor device according to any one of the preceding claims. <7> The liquid mixture is composed of the powder of the solid / powder cosmetic material and the wax, the content of the powder of the solid / powder cosmetic material being 30% by mass to 45% by mass, and the content of the wax being 55% by mass to 70% by mass. <1> or <2> The manufacturing method described in <8> A crayon comprising a powder of a solid / powder-based cosmetic material, an oil-based makeup cosmetic material, and a wax, wherein the contents of the powder of the solid / powder-based cosmetic material, the oil-based makeup cosmetic material, and the wax in the crayon are any of the following (a) to (c): (a) 45% by mass to 65% by mass of the powder of the solid / powder-based cosmetic, 5% by mass to 20% by mass of the oil-based makeup cosmetic, and 30% by mass to 45% by mass of the wax (b) 5 to 20% by mass of the powder of the solid / powder-based cosmetic, 50% by mass to 70% by mass of the oil-based makeup cosmetic, and 15% by mass to 30% by mass of the wax (c) 15% by mass to 45% by mass of the powder of the solid / powder-based cosmetic, 5% by mass to 20% by mass of the oil-based makeup cosmetic, and 50% by mass to 75% by mass of the wax Effect of the Invention

[0009] According to the present invention, there are provided crayons having good appearance, made from recycled cosmetics, which can also contribute to reducing waste of cosmetics, and a method for producing the same. [Brief description of the drawings]

[0010] [Figure 1] 1 is an example of a crayon produced by the production method of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The following is a detailed description of the embodiments of the present invention, but the following description of the constituent elements is one example (representative example) of the embodiment of the present invention, and the present invention is not limited to the following content as long as the gist of the present invention is not changed. Note that in this specification, when the expression "~" is used, it is used as an expression including the numerical value or physical property value before and after it.

[0012] <Crayon manufacturing method> The present invention relates to a method for producing crayons from recycled cosmetics (hereinafter sometimes referred to as the "production method of the present invention"), which comprises a mixing step of heating and mixing a powder of a solid / powder-based cosmetic with wax at a temperature of 75° C. or more and 115° C. or less to prepare a liquid mixture, and a molding step of supplying the liquid mixture to a mold, cooling it to solidify it, and molding it into a crayon.

[0013] The present inventors focused on crayons as a way to reuse discarded cosmetics. However, when crayons were produced from discarded cosmetics, the resulting crayons often turned white or had a rough appearance. In addition, they faced the problem that some crayons produced from discarded cosmetics were easy to break or difficult to write with. In order to solve this problem, they conducted extensive research and found that compared to art supplies in which powder-type cosmetics are dispersed in a liquid base, crayons produced from discarded cosmetics are more likely to be affected by the dispersion state of the cosmetics and are more likely to have uneven solidification. They then discovered that crayons with good appearance can be stably produced by powdering solid / powder-based cosmetics and mixing the solid / powder cosmetics and wax, or the solid / powder cosmetics, oil-based makeup cosmetics and wax at a specified temperature to form a liquid mixture and solidifying the mixture.

[0014] In addition, by using solid / powder cosmetics or oil-based makeup cosmetics, it is possible to easily impart the glitter or shimmer that is unique to cosmetics to the crayons.

[0015] Also, unlike art supplies that disperse discarded cosmetics, by making them into crayons, they are less likely to separate after production, making quality control easier.

[0016] [Mixing process] The mixing step is a step in which a solid / powder-based cosmetic material and a wax are heated and mixed at a temperature of 75° C. or higher and 115° C. or lower to prepare a liquid mixture.

[0017] [Solid / powder-based cosmetics] In the manufacturing method of the present invention, a powder of a solid / powder-based cosmetic is used as one of the raw materials for manufacturing crayons. A solid / powder-based cosmetic is a powder-based cosmetic that contains a larger amount of powder components than other components. The dosage form of a solid / powder-based cosmetic can be a powder (powder-like) or a solid form. A solid / powder-based cosmetic preferably contains 50% by mass or more of powder components, more preferably 65% ​​by mass or more.

[0018] Examples of powder components include extender pigments such as talc, mica, sericite, kaolin, synthetic mica, silica, barium sulfate, calcium carbonate, aluminum oxide, and cellulose, and coloring pigments such as titanium oxide, zinc oxide, iron oxide, and ultramarine, and those that contain a large amount of extender pigments are preferred.

[0019] Specifically, examples of solid powder cosmetics include powder foundation, pressed powder, loose powder, powder eyeshadow, powder blush, powder face color, powder nose shadow, powder eyebrow, powder eyeliner, highlighter, etc. Among them, it is preferable to use at least one selected from the group consisting of powder foundation, pressed powder, and loose powder as the solid powder cosmetic, since it is possible to produce a crayon that is difficult to break even if the proportion of wax or oil-based makeup cosmetic is increased, and color adjustment is also easy.

[0020] As described above, in the mixing step, a powder of the solid / powder-based cosmetic is used. When a powder-type cosmetic is used as the solid / powder-based cosmetic, the powder of the solid / powder-based cosmetic can be used as it is in the mixing step.

[0021] When using a solid cosmetic (a cosmetic in which powder components have been solidified) as the solid / powder cosmetic, it is pulverized into a powder form and used in the mixing process. It is also important to powder it without lumps so that it can be mixed uniformly with wax or oil-based makeup cosmetics. Even if it is in a solid form, solid / powder cosmetic can be easily pulverized. As a pulverizing method, a mortar, mortar, mixer, mill or other pulverizer can be used. It may also be passed through a mesh with an opening of about 0.2 to 3 mm.

[0022] [wax] In the manufacturing method of the present invention, wax is used as one of the raw materials for manufacturing crayons. The use of wax imparts strength to the resulting crayons, making them less likely to break and easier to write with.

[0023] Specifically, examples of wax include natural waxes such as petroleum wax (paraffin wax, microcrystalline wax, etc.), animal wax (beeswax, etc.), and vegetable wax (carnauba wax, wood wax, etc.); and synthetic waxes such as polyethylene wax. Natural wax is preferred, and paraffin wax is more preferred. From the viewpoint of usability, the wax preferably contains 70% by mass or more of natural wax, and more preferably contains 70% by mass or more of paraffin wax.

[0024] In the manufacturing method of the present invention, it is preferable to mix the powder of the solid / powder-based cosmetic, the wax, and the oil-based makeup cosmetic in the mixing step. This manufacturing method has the advantage that the oil-based makeup cosmetic can be reused in addition to the solid / powder cosmetic. Conventionally, cosmetics used as raw materials for art supplies are mainly powder-type cosmetics, and many of these powder-type cosmetics have been dispersed in a base material such as an aqueous component to be reused as art supplies. However, some discarded cosmetics contain a large amount of oily components, such as lipstick, and it was difficult to disperse these products in a base material such as an aqueous component to make art supplies. In the manufacturing method of the present invention, oil-based makeup cosmetics, which were previously difficult to reuse, can also be reused, making it an environmentally friendly product.

[0025] [Oily based makeup cosmetics] In the manufacturing method of the present invention, it is preferable to use an oil-based makeup cosmetic as one of the raw materials for manufacturing crayons. Makeup cosmetics generally have functions such as correcting color and texture and imparting a three-dimensional effect, and are applied to the skin to make the skin look beautiful. Oil-based makeup cosmetics are makeup cosmetics that contain a higher amount of oily components than other components, and their formulations include solid, paste, cream, and liquid. Oil-based makeup cosmetics preferably contain 70% by mass or more of oily components, and more preferably contain 80% by mass or more.

[0026] Examples of oily components include liquid oils such as paraffin, squalane, silicone oil, fluorine-based oil, and ester oil; semi-solid oils such as vaseline; and solid oils such as carnauba wax, beeswax, and fats and oils.

[0027] Specifically, examples of oil-based makeup cosmetics include lipstick, concealer, cream eyeshadow, cream blush, oil-based liquid eyeliner, oil-based liquid lipliner, and oil-based liquid eyebrow, and it is preferable to use at least lipstick.

[0028] In addition, solid / powder-based cosmetics and oil-based makeup cosmetics may be used not only as new products, but also in the middle of use, and discarded cosmetics that do not meet certain management standards at manufacturing sites or discarded cosmetics collected from general consumers may also be used. In order to reduce the amount of discarded cosmetics, it is preferable to use discarded solid / powder-based cosmetics and oil-based makeup cosmetics.

[0029] It is preferable that solid / powder-based cosmetics and oil-based makeup cosmetics are used after classifying the colors. The colors can be classified into red, yellow, green, blue, brown, gray, black, etc., and the red color may be further classified into red and pink. Since it becomes difficult to separate the colors if the colors are classified too finely, it is preferable to classify the colors into about 7 to 12 categories. This makes it easier to manage color adjustments and adjustments such as the mixability of materials.

[0030] When the liquid mixture does not contain an oil-based makeup cosmetic, the total content of the powder of the solid / powder cosmetic and wax in the liquid mixture is preferably 96% by mass or more, or 98% by mass or more, and may consist of the powder of the solid / powder cosmetic and wax.

[0031] When the liquid mixture contains a powder of a solid / powder cosmetic material, an oil-based makeup cosmetic material, and a wax, the total content of the powder of the solid / powder cosmetic material, the oil-based makeup cosmetic material, and the wax in the liquid mixture is preferably 96% by mass or more, or 98% by mass or more, and the mixture may consist of the powder of the solid / powder cosmetic material, the oil-based makeup cosmetic material, and the wax. Note that "consisting of" does not allow the intentional addition of ingredients other than the ingredients in question, and does not exclude the inclusion of unavoidable impurities.

[0032] [Mixing ratio] The mixing ratio of each component is appropriately designed depending on whether or not an oil-based makeup cosmetic is used, etc. For example, when the liquid mixture is composed of a powder of a solid / powder cosmetic and a wax, the powder of the solid / powder cosmetic may be 25% by mass to 50% by mass and the wax may be 50% by mass to 75% by mass, and preferably the powder of the solid / powder cosmetic is 30% by mass to 45% by mass and the wax is 55% by mass to 70% by mass.

[0033] As an example of a case where the liquid mixture contains a powder of a solid / powder cosmetic, an oil-based makeup cosmetic, and a wax, for example, when the main component is a powder of a solid / powder cosmetic, it is preferable to have a greater amount of wax than the oil-based makeup cosmetic, and the mixture may be 45% by mass to 60% by mass of the powder of the solid / powder cosmetic, 5% by mass to 20% by mass of the oil-based makeup cosmetic, and 30% by mass to 45% by mass of the wax, or 48% by mass to 55% by mass of the powder of the solid / powder cosmetic, 8% by mass to 15% by mass of the oil-based makeup cosmetic, 32% by mass to 40% by mass of the wax, 48% by mass to 52% by mass of the powder of the solid / powder cosmetic, 10% by mass to 15% by mass of the oil-based makeup cosmetic, and 35% by mass to 38% by mass of the wax, etc.

[0034] When the liquid mixture contains a powder of a solid / powder cosmetic, an oil-based makeup cosmetic, and a wax, and has an oil-based makeup cosmetic as the main component, the mixture may be 5 to 20 mass% of the powder of the solid / powder cosmetic, 50 mass% to 70 mass% of the oil-based makeup cosmetic, and 15 mass% to 30 mass% of the wax, or 8 mass% to 15 mass% of the powder of the solid / powder cosmetic, 60 mass% to 70 mass% of the oil-based makeup cosmetic, 18 mass% to 25 mass% of the wax, 10 mass% to 15 mass% of the powder of the solid / powder cosmetic, 65 mass% to 70 mass% of the oil-based makeup cosmetic, and 20 mass% to 25 mass% of the wax, etc.

[0035] When the liquid mixture contains a powder of a solid / powder cosmetic material, an oil-based makeup cosmetic material, and a wax, with wax being the main component, it is preferable to have a greater amount of powder of the solid / powder cosmetic material than the oil-based makeup cosmetic material, and the amounts can be 15% by mass to 45% by mass of the powder of the solid / powder cosmetic material, 5% by mass to 20% by mass of the oil-based makeup cosmetic material, and 50% by mass to 75% by mass of the wax, or 18% by mass to 35% by mass of the powder of the solid / powder cosmetic material, 5% by mass to 15% by mass of the oil-based makeup cosmetic material, 55% by mass to 70% by mass of the wax, 18% by mass to 30% by mass of the powder of the solid / powder cosmetic material, 10% by mass to 15% by mass of the oil-based makeup cosmetic material, and 60% by mass to 70% by mass of the wax, etc.

[0036] [Mixing method] The mixing method and order of mixing are not particularly limited. For example, the solid / powder cosmetic and wax may be mixed by heating after being placed in a container, or the solid / powder cosmetic and wax may be mixed simultaneously or sequentially into a heated container. Alternatively, the powder of the solid / powder cosmetic, the oil-based makeup cosmetic and the wax may be mixed with the powder of the solid / powder cosmetic while melting the oil-based makeup cosmetic and the wax after being placed in a container by heating. Alternatively, the powder of the solid / powder cosmetic, the oil-based makeup cosmetic and the wax may be mixed with the powder of the solid / powder cosmetic while melting the oil-based makeup cosmetic and the wax after being placed in a heated container. Alternatively, the powder of the solid / powder cosmetic may be mixed with the powder of the solid / powder cosmetic after melting the oil-based makeup cosmetic and the wax. Alternatively, the powder of the solid / powder cosmetic may be added and mixed after melting the oil-based makeup cosmetic and the wax. If the size of the oil-based makeup cosmetic or the wax is too large, taking into consideration the size of the container and the mixing property, it may be cut into appropriate sizes before being placed in the container. By stirring at the mixing temperature using a spatula, stirring blade, stirring rod, etc., the powder of the solid / powder-based cosmetic material, the oil-based makeup cosmetic material, and the wax are mixed.

[0037] [Mixing temperature] The mixing temperature is 75°C or higher and 115°C or lower, and more preferably 80°C or higher and 110°C or lower. By using such a temperature, it is easy to obtain crayons that have a good appearance and are not easily broken, regardless of the blend of materials. If the mixing temperature is low, the appearance of the obtained crayons is likely to be rough and have air bubbles. If the mixing temperature is high, the components will separate during mixing and will not be able to be mixed uniformly, resulting in lumps and air bubbles during crayon molding and uneven solidification.

[0038] [Molding process] The molding process is a process in which the liquid mixture is supplied to a mold, cooled and solidified, and a crayon is formed. When the liquid mixture prepared in the mixing process is cooled, the wax and other components contained in the liquid mixture solidify and become a solid. The liquid mixture is poured into a mold of a desired shape and cooled, thereby obtaining a crayon of a desired shape. Specifically, the liquid mixture is poured into the mold while being kept within the temperature range during mixing so that the liquid mixture does not solidify. Thereafter, the liquid mixture is left at room temperature for a predetermined time, whereby the liquid mixture solidifies and a crayon corresponding to the shape of the mold can be obtained.

[0039] The temperature of the liquid mixture when poured into the mold may be the same as that when mixed, or may be different from that when mixed, depending on the material of the mold, but is preferably 75°C to 115°C, more preferably 80°C to 110°C, so as not to solidify the liquid mixture. The material of the mold is not particularly limited, and molds made of silicon, glass, plastic, metal, etc. can be used. From the viewpoints of ease of handling and ease of quality control of the finished product, a silicon mold is preferred.

[0040] Fig. 1 shows an example of a crayon obtained by the manufacturing method of the present invention. The crayons in Fig. 1 are a pen-shaped crayon with pointed ends and a pyramid-shaped crayon, but the shape of the crayon is not limited to this. The shape of the crayon can be, for example, a polyhedron such as a polygonal pyramid, a polygonal truncated pyramid, or a polygonal inverted crayon; a cylinder; a cone; a cone truncated cone; or a shape that combines these shapes (such as a flower shape or a star shape). The desired shape can be obtained by selecting a mold according to the shape to be manufactured. EXAMPLES

[0041] The present invention will be described in more detail below with reference to examples. However, the present invention is not limited to the following examples unless the gist of the present invention is changed.

[0042] [material] (1) Solid / powder-based cosmetics I used powder foundation, face powder, powder eyeshadow, powder blush, and highlighter (all of which I plan to discard). The powder foundation, powder eyeshadow, powder blush, and highlighter were each placed in a mortar and crushed with a pestle to create a uniform powder, while the white powder was used as is.

[0043] (2) Oil-based makeup cosmetics I used lipstick, concealer, cream eyeshadow, cream blush, eyeliner, and lip liner (all of which were going to be discarded). Lipstick, concealer, cream eyeshadow, cream blush, eyeliner, and lip liner were cut into pieces using a cutter.

[0044] (3) Wax Paraffin wax and beeswax were used.

[0045] Solid / powder-based cosmetics and oil-based makeup cosmetics were classified by color, and similar colors were used.

[0046] [Example 1] (Example 1-1) 43.0 g of foundation powder and 157.0 g of paraffin wax were added to a heat-resistant container, heated to 85°C, and mixed until the paraffin wax melted and became uniform, obtaining a liquid mixture. This liquid mixture was added to a color-type silicon mold at 85°C, left at room temperature, cooled to solidify, and then removed from the mold to obtain a crayon.

[0047] (Examples 1-2 to 1-5) The crayons of Examples 1-2 to 1-5 were produced in the same manner as in Example 1-1, except that the types and blending ratios of the solid / powder cosmetic materials and wax, the mixing temperature, and the temperature at the time of pouring into a mold were changed as shown in Table 1.

[0048] (evaluation) The appearance of several crayons removed from the molds was visually observed and the finish was evaluated. Crayons with a separated finish, or with an overall rough surface, whitish color, or air bubbles were rated as poor. The feel of the crayons in use was also evaluated, and crayons that broke or were difficult to write with were rated as poor. The finish and feel in use were rated as "◎" when the finish and feel in use were good, and "×" when the finish and feel in use were poor, and the evaluation was made on a four-point scale of "◎", "○", "△", and "×". The evaluation results are shown in Table 1.

[0049] Furthermore, the crayons obtained were tested for harmful substances according to JIS S 6026:2007, and all the results were below the standard values, confirming their safety.

[0050] [Table 1]

[0051] [Example 2] (Example 2-1) 80.0 g of powder foundation and 315.0 g of paraffin wax were added to a heat-resistant container, heated to 105°C, and mixed until the paraffin wax melted and became uniform, obtaining a liquid mixture. This liquid mixture was poured into a transparent silicon mold at 105°C, left at room temperature, cooled to solidify, and then removed from the mold to obtain a crayon.

[0052] (Examples 2-2 to 2-5) The crayons of Examples 2-2 to 2-5 were produced in the same manner as in Example 2-1, except that the types and blending ratios of the solid / powder cosmetic materials and wax, the mixing temperature, and the temperature at the time of pouring into a mold were changed as shown in Table 2.

[0053] The crayons of Examples 2-1 to 2-5 were evaluated in the same manner as in Example 1-1. The results are shown in Table 2.

[0054] [Table 2]

[0055] [Example 3] (Example 3-1) 14.0g of foundation powder, 3.0g of lipstick, and 10.0g of paraffin wax were added to a heat-resistant container, heated to 80°C, and mixed until the lipstick and paraffin wax melted and became uniform, obtaining a liquid mixture. This liquid mixture was added to a color-type silicon mold at 80°C, left at room temperature, cooled to solidify, and then removed from the mold to obtain a crayon.

[0056] (Examples 3-2 to 3-7, Comparative Example 3-8) The crayons of Examples 3-2 to 3-7 and Comparative Example 3-8 were produced in the same manner as in Example 3-1, except that the types, mixing ratios, mixing temperature, and temperature at the time of pouring into a mold were changed as shown in Table 3.

[0057] The crayons of Examples 3-1 to 3-7 and Comparative Example 3-8 were evaluated in the same manner as in Example 1-1. The results are shown in Table 3.

[0058] [Table 3]

[0059] [Example 4] Crayons of Examples 4-1 and 4-2 were produced and evaluated in the same manner as in Example 3-1, except that the types and blending ratios of the solid / powder cosmetic material and wax, the mixing temperature, and the temperature when poured into a mold were changed as shown in Table 4. The obtained crayons were evaluated in the same manner as in Example 1-1. The results are shown in Table 4.

[0060] [Table 4]

[0061] [Example 5] Crayons of Examples 5-1 to 5-6 and Comparative Example 5-7 were produced in the same manner as in Example 3-1, except that the types and blending ratios of the solid / powder cosmetic material and wax, the mixing temperature, and the temperature when poured into the mold were changed as shown in Table 5. The obtained crayons were evaluated in the same manner as in Example 1-1. The results are shown in Table 5.

[0062] [Table 5]

[0063] [Example 6] (Example 6-1) 31.5g of powder eyeshadow, 20.0g of lipstick, and 113.0g of paraffin wax were added to a heat-resistant container, heated to 105°C, and mixed until the lipstick and paraffin wax were melted and homogenized to obtain a liquid mixture. This liquid mixture was poured into a transparent silicone mold at 105°C, left at room temperature, cooled to solidify, and then removed from the mold to obtain a crayon.

[0064] (Examples 6-2 to 6-7, Comparative Examples 6-8) The crayons of Examples 6-2 to 6-7 and Comparative Example 6-8 were produced in the same manner as in Example 6-1, except that the types, mixing ratios, mixing temperature, and temperature at the time of pouring into a mold were changed as shown in Table 6.

[0065] (evaluation) The crayons of Examples 6-1 to 6-7 and Comparative Example 6-8 were evaluated in the same manner as in Example 1-1. Table 6 shows the results.

[0066] [Table 6]

[0067] Comparative Example 7 Comparative Examples 7-1 to 7-3 were carried out in the same manner as in Example 6-1, except that the types, mixing ratios, mixing temperature, and temperature at the time of pouring into a mold of the solid / powder cosmetic preparations, oil-based makeup cosmetic preparations, and wax were changed as shown in Table 7.

[0068] [Table 7]

[0069] In Comparative Example 7-1, the powder foundation was used as it was without powdering it. However, it became lumpy when mixed, and it was not possible to manufacture a crayon. In Comparative Example 7-2, a crayon was manufactured without using paraffin wax. However, it did not harden, and it was not possible to manufacture a crayon. In Comparative Example 7-3, a crayon was manufactured without using powder foundation. However, even after hardening, the finished crayon had poor color development. [Industrial Applicability]

[0070] According to the present invention, since discarded cosmetics can be reused to produce crayons, the environmental burden can be reduced and the invention is also useful industrially. [Explanation of symbols]

[0071] 1 crayon

Claims

1. a mixing step of heating and mixing the powder of the solid powder-based cosmetic material and the wax at a temperature of 75° C. or higher and 115° C. or lower to prepare a liquid mixture; and a molding step of supplying the liquid mixture to a mold, cooling and solidifying the mixture to form a crayon.

2. The method according to claim 1 , wherein the solid / powder-based cosmetic is discarded cosmetic.

3. 3. The method according to claim 1, wherein in the mixing step, the powder of the solid powder-based cosmetic material, the wax, and an oil-based makeup cosmetic material are mixed together.

4. The method according to claim 3, wherein the contents of the powder of the solid / powder-based cosmetic, the oil-based makeup cosmetic, and the wax in the liquid mixture are any of the following (a) to (c): (a) 45% by mass to 60% by mass of the powder of the solid powder-based cosmetic, 5% by mass to 20% by mass of the oil-based makeup cosmetic, and 30% by mass to 45% by mass of the wax (b) 5 to 20% by mass of the powder of the solid / powder-based cosmetic, 50 to 70% by mass of the oil-based makeup cosmetic, and 15 to 30% by mass of the wax. (c) 15% by mass to 45% by mass of the powder of the solid powder-based cosmetic, 5% by mass to 20% by mass of the oil-based makeup cosmetic, and 50% by mass to 75% by mass of the wax

5. 4. The method according to claim 3, wherein the oil-based makeup cosmetic is at least one selected from the group consisting of lipstick, concealer, cream eyeshadow, cream blush, oil-based liquid eyeliner, oil-based liquid lipliner, and oil-based liquid eyebrow.

6. 3. The method according to claim 1, wherein the solid powder cosmetic is at least one selected from the group consisting of powder foundation, pressed powder, loose powder, powder eye shadow, powder blush, powder face color, powder nose shadow, powder eyebrow, powder eyeliner, and highlighter.

7. the liquid mixture comprises the powder of the solid / powder-based cosmetic material and the wax, The powder content of the solid powder cosmetic is 30% by mass to 45% by mass, The method according to claim 1 or 2, wherein the content of the wax is 55% by mass to 70% by mass.

8. The crayon includes a powder of a solid / powder-based cosmetic, an oil-based makeup cosmetic, and a wax-containing crayon, The crayon has a content of the powder of the solid / powder-based cosmetic, the oil-based makeup cosmetic, and the wax in the crayon that is any one of the following (a) to (c): (a) 45% by mass to 60% by mass of the powder of the solid powder-based cosmetic, 5% by mass to 20% by mass of the oil-based makeup cosmetic, and 30% by mass to 45% by mass of the wax (b) 5 to 20% by mass of the powder of the solid / powder-based cosmetic, 50 to 70% by mass of the oil-based makeup cosmetic, and 15 to 30% by mass of the wax. (c) 15% by mass to 45% by mass of the powder of the solid powder-based cosmetic, 5% by mass to 20% by mass of the oil-based makeup cosmetic, and 50% by mass to 75% by mass of the wax

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