Powdered bath composition, set of powdered bath composition, containerized powdered bath composition, filling method, and pattern creation method.

Abstract

The objective is to provide a powdered bath composition that has sufficient fluidity to maintain its shape and is resistant to pattern collapse during the process of filling a transparent container while forming a pattern, a set thereof, a containerized powdered bath composition, a filling method, and a method for creating a pattern. [Solution] A powdered bath composition filled in a transparent container, having a compressibility of 14.5% or more, represented by the following formula (1). Compressibility (%) = ((Compressed bulk density (g / mL) - Loose bulk density (g / mL)) / Compressed bulk density (g / mL)) × 100 ... Equation (1)

Description

Technical Field

[0001] The present invention relates to a powdery bath composition, a set of powdery bath compositions, a powdery bath composition packed in a container, a filling method, and a pattern forming method.

Background Art

[0002] Conventional bath agents are generally packed in opaque packages such as metal cans, resin containers, and aluminum pouches to maintain quality. On the other hand, in addition to the function as a bath agent, there is a demand for the development of products that can be enjoyed visually during use and storage. In these products, for example, a colorful bath agent can be packed in a transparent container and enjoyed like a powder art, or shared and enjoyed through photos and videos. By making such visually enjoyable products, they can be utilized for promotion and are suitable for appealing the charm of the products.

Summary of the Invention

Problems to be Solved by the Invention

[0003] When creating a powder art inside a transparent container, not only is it necessary to fill the transparent container with a powdery material, but also to form arbitrary irregularities on the surface of the powdery material using a spatula or the like, and further stack a layer of a powdery material of another color on top, or use a bamboo skewer or the like to sink the upper powdery material into the lower powdery material.

[0004] However, when trying to create this powder art using a powdery bath composition, even if arbitrary irregularities are formed on the surface of the powdery bath composition using a spatula or the like, when the spatula is removed, the powder flows in the concave portions and the arbitrary irregular shape cannot be maintained, making it difficult to fill while forming a pattern in a transparent container.

[0005] The present invention aims to solve the above problems by providing a powdered bath composition, a set of powdered bath compositions, a containerized composition, a filling method, and a method for creating patterns, which have sufficient fluidity to maintain any desired uneven shape during the process of filling a transparent container while forming a pattern, and which prevent the created pattern from collapsing easily. [Means for solving the problem]

[0006] In other words, the present invention is as follows. [1] Filled in a transparent container, The compression ratio expressed by the following formula (1) is 14.5% or higher. Compressibility (%) = ((Compressed bulk density (g / mL) - Loose bulk density (g / mL)) / Compressed bulk density (g / mL)) × 100 ... Equation (1) Powdered bath composition. [2] It can maintain the desired shape formed after filling. The compression ratio expressed by the following formula (1) is 14.5% or higher. Compressibility (%) = ((Compressed bulk density (g / mL) - Loose bulk density (g / mL)) / Compressed bulk density (g / mL)) × 100 ... Equation (1) Powdered bath composition. [3] The difference between the angle of repose and the angle of collapse is 16° or more. The powdered bath composition described in [1] or [2]. [4] A set of powdered bath compositions for packaging in transparent containers, A first powdered bath composition, A second powdered bath composition having a different color from the first powdered bath composition, The compressibility of the first powdered bath composition, represented by the following formula (1), is 14.5% or more. Compressibility (%) = ((Compressed bulk density (g / mL) - Loose bulk density (g / mL)) / Compressed bulk density (g / mL)) × 100 ... Equation (1) A set of powdered bath composition. [5] A transparent container, A first powdered bath composition partially filled in the transparent container, The invention comprises a second powdered bath composition filled on a layer of the first powdered bath composition that has been filled, The second powdered bath composition has a different color from the first powdered bath composition. The compressibility of the first powdered bath composition, represented by the following formula (1), is 14.5% or more. Compressibility (%) = ((Compressed bulk density (g / mL) - Loose bulk density (g / mL)) / Compressed bulk density (g / mL)) × 100 ... Equation (1) A containerized powdered bath composition. [6] A method for filling powdered bath compositions, A first filling step involves partially filling a transparent container with a first powdered bath composition, The process includes a second filling step of filling a layer of the first powdered bath composition with a second powdered bath composition of a different color from the first powdered bath composition, The compressibility of the first powdered bath composition, represented by the following formula (1), is 14.5% or more. Compressibility (%) = ((Compressed bulk density (g / mL) - Loose bulk density (g / mL)) / Compressed bulk density (g / mL)) × 100 ... Equation (1) Filling method. [7] A method for creating patterns using a powdered bath composition, A first filling step involves partially filling a transparent container with a first powdered bath composition, The process includes a second filling step of filling a layer of the first powdered bath composition with a second powdered bath composition of a different color from the first powdered bath composition, The compressibility of the first powdered bath composition, represented by the following formula (1), is 14.5% or more. Compressibility (%) = ((Compressed bulk density (g / mL) - Loose bulk density (g / mL)) / Compressed bulk density (g / mL)) × 100 ... Equation (1) Pattern creation method. [Effects of the Invention]

[0007] According to the present invention, in the process of filling a transparent container while forming a pattern, a powdery bath composition having fluidity to maintain its shape and with a pattern that is difficult to collapse, a set of powdery bath compositions, a container-filled powdery bath composition, a filling method, and a pattern creation method can be provided.

Brief Description of the Drawings

[0008] [Figure 1A] It is a diagram for explaining the flow of the test in the fluidity evaluation and the measurement points in the fluidity evaluation. [Figure 1B] A photograph of the fluidity evaluation of Example 1 is shown. [Figure 1C] A photograph of the fluidity evaluation of Comparative Example 1 is shown. [Figure 2A] A photograph of the resistance to collapse evaluation of Example 1 is shown. [Figure 2B] A photograph of the resistance to collapse evaluation of Example 2 is shown. [Figure 2C] A photograph of the resistance to collapse evaluation of Comparative Example 1 is shown. [Figure 3] It is an example of powder art.

Modes for Carrying Out the Invention

[0009] Hereinafter, embodiments of the present invention (hereinafter referred to as "the present embodiment") will be described in detail. However, the present invention is not limited thereto, and various modifications are possible without departing from the gist thereof.

[0010] 1. Powdery Bath Composition The powdery bath composition of the present embodiment is filled in a transparent container and has a compression ratio (hereinafter also simply referred to as "compression ratio") represented by the following formula (1) of 14.5% or more. Note that "powder" refers to any powder regardless of the particle size. Compression ratio (%) = ((Packed bulk density (g / mL) - Loose bulk density (g / mL)) / Packed bulk density (g / mL)) × 100 ··· Formula (1)

[0011] Furthermore, the powdered bath composition of this embodiment may have a compressibility of 14.5% or more, represented by the following formula (1), which allows it to maintain the desired shape formed after being filled into a container. Compressibility (%) = ((Compressed bulk density (g / mL) - Loose bulk density (g / mL)) / Compressed bulk density (g / mL)) × 100 ... Equation (1)

[0012] This makes it less likely for patterns to be disrupted by external vibrations during the filling process into transparent containers. Therefore, it is possible to provide bath compositions that can be filled into transparent glass containers while maintaining beautiful multi-color, multi-layer designs, allowing for long-term enjoyment of the design without compromising its aesthetic appeal. This "multi-color, multi-layer" refers to designs with two or more colors and two or more layers, and because the patterns remain intact, the product's appearance is always perfect. Furthermore, this design is suitable for consumers to share photos and videos on social media and can be used as promotional material for companies, thus possessing effective elements for modern marketing strategies.

[0013] The compressibility is 14.5% or higher, preferably 14.7-30%, 14.9-27.5%, 15.1-25%, and 15.5-22.5%. A compressibility of 14.5% or higher tends to result in a product that retains its shape while having sufficient fluidity, and the pattern is less likely to collapse. It also tends to allow the upper layer of powdered bath composition to easily inflate into the lower layer of powdered bath composition.

[0014] The loosened bulk density is preferably 1 g / mL or more, 1.1 g / mL or more, or 1.2 g / mL or more, and 2 g / mL or less, 1.9 g / mL or less, 1.8 g / mL or less, 1.7 g / mL or less, 1.6 g / mL or less, 1.5 g / mL or less, or 1.4 g / mL or less. Having the loosened bulk density within the above range makes it easier to suppress the scattering of the powdered bath composition during filling, thus making filling easier and facilitating the creation of patterns. The loosened bulk density is one of the items used in calculating Carr's fluidity index and can be measured in accordance with ASTM D6393-99 using a powder tester (instrument name: PT-X, manufactured by Hosokawa Micron Corporation).

[0015] The solidified bulk density is preferably 1.2 g / mL or more, 1.3 g / mL or more, 1.4 g / mL or more, or 1.5 g / mL or more, and 2.5 g / mL or less, 2.4 g / mL or less, 2.3 g / mL or less, 2.2 g / mL or less, 2.1 g / mL or less, 2 g / mL or less, or 1.9 g / mL or less. When the solidified bulk density is within the above range, it tends to have enough fluidity to maintain its shape and the pattern is less likely to collapse. The solidified bulk density is one of the items used in calculating Carr's fluidity index and can be measured in accordance with ASTM D6393-99 using a powder tester (instrument name: PT-X, manufactured by Hosokawa Micron Corporation).

[0016] The compressibility, loose bulk density, and solid bulk density can be adjusted by the various components used in the powdered bath composition and their amounts. Furthermore, the compressibility, loose bulk density, and solid bulk density can also be adjusted by the particle size distribution of the particles constituting the powdered bath composition, and can also be adjusted by the granulation and classification processes of the powdered bath composition.

[0017] The difference between the angle of repose and the angle of collapse is preferably 16° or more, or 17° or more, and 25° or less, 24° or less, 23° or less, 22° or less, 21° or less, or 20° or less. When the difference between the angle of repose and the angle of collapse is within the above range, the material tends to have enough fluidity to maintain its shape and the pattern is less likely to collapse.

[0018] The angle of repose is preferably 30° or greater, 32° or greater, 34° or greater, or 36° or greater, and 60° or less, 55° or less, 50° or less, or 45° or less. When the angle of repose is within the above range, the material tends to have sufficient fluidity to maintain its shape and the pattern is less likely to collapse. The angle of repose is one of the items used in calculating Carr's fluidity index and can be measured in accordance with ASTM D6393-99 using a powder tester (instrument name: PT-X, manufactured by Hosokawa Micron Corporation).

[0019] The collapse angle is preferably 14° or more, 16° or more, 18° or more, or 20° or more, and 35° or less, 33° or less, 30° or less, or 28° or less. When the collapse angle is within the above range, it tends to have enough fluidity to maintain its shape and the pattern is less likely to collapse. The collapse angle is one of the items used in calculating Carr's fluidity index and can be measured using a powder tester (instrument name: PT-X, manufactured by Hosokawa Micron Corporation) in accordance with ASTM D6393-99.

[0020] The angle of repose and collapse angle can be adjusted by the various components and their amounts used in the powdered bath composition. Furthermore, the angle of repose and collapse angle can also be adjusted by the particle size distribution of the particles constituting the powdered bath composition, and by the granulation and classification processes of the powdered bath composition.

[0021] The particles constituting the powdered bath composition preferably consist of particles with a particle size of 300 μm or less, and preferably contain 50% or more, 60% or more, 70% or more, or 80% or more by mass of the total powdered bath composition. The upper limit is 100% or less by mass. By keeping the particle size within the above range, the composition tends to have sufficient fluidity to maintain its shape and to be less prone to pattern collapse. In addition, it becomes easier for the upper layer of powdered bath composition to penetrate into the lower layer of powdered bath composition, making it easier to form patterns.

[0022] The powdered bath composition of the present invention may contain one or more of the various components used in bath additives. Specific examples of such components include the following:

[0023] Inorganic salts can enhance the warming and cleansing effects of bathing, and can also soften the water. Such inorganic salts are not particularly limited, but examples include carbonates such as sodium carbonate, calcium carbonate, magnesium carbonate, heavy magnesium carbonate, sodium bicarbonate, and sodium sesquicarbonate; chlorides such as sodium chloride, potassium chloride, and ammonium chloride; sulfates such as magnesium sulfate, sodium sulfate, aluminum sulfate, iron sulfate, sodium thiosulfate, potassium thiosulfate, and sodium hyposulfite; nitrates such as sodium nitrate, potassium nitrate, and calcium nitrate; phosphates such as sodium phosphate, sodium polyphosphate, and calcium hydrogen phosphate; sulfides such as sulfur, sodium sulfide, potassium sulfide, and iron sulfite; silicon compounds such as anhydrous silicic acid, metasilicic acid, mica powder, and neutral clay; hydroxides such as sodium hydroxide and calcium hydroxide; and borax, boric acid, calcium oxide, potassium bromide, potassium permanganate, artificial callus salts, mineral springs, mineral sand, and bath deposits.

[0024] The inorganic salt content is preferably 90 to 99.9% by mass and 97.5 to 99.8% by mass, relative to the total amount of the powdered bath composition.

[0025] Moisturizers are expected to have the effect of keeping the skin moist. There are no particular restrictions on such moisturizers, but examples include liquid lanolin, jojoba oil, glycerin, casein, stearyl alcohol, olive oil, soybean oil, liquid paraffin, white petrolatum, propylene glycol, skim milk powder, squalane, honey, and rice germ oil.

[0026] The amount of moisturizer is preferably 0.001 to 0.1% by mass and 0.005 to 0.05% by mass, relative to the total amount of the powdered bath composition.

[0027] There are no particular restrictions on the chlorine-removing components in bathwater, but examples include amino acids such as glycine, alanine, glutamic acid, and aspartic acid, sodium thiosulfate, vitamin C (L-ascorbic acid), taurine, and sodium glutamate.

[0028] The chlorine removal component content is preferably 0.01 to 1% by mass and 0.05 to 0.5% by mass, relative to the total amount of the powdered bath composition.

[0029] Herbal medicines can be expected to enhance the warming effect of bathing. There are no particular restrictions on such herbal medicines, but examples include fennel, scutellaria baicalensis, phellodendron bark, chamomile, magnolia bark, rice fermentation extract, houttuynia cordata, calamus, chuanxiong, citrus peel, angelica root, spruce, chili pepper, ginseng, yuzu, mugwort, angelica leaf, mint leaf, ginger, licorice, and cinnamon.

[0030] Enzymes can be expected to have a skin-cleansing effect. There are no particular restrictions on such enzymes, but examples include trypsin, α-chymotrypsin, bromelain, papain, pancreatin, protease, productase, serrathiopeptidase, lysozyme, bromelain, and physin.

[0031] Organic acids, when used with carbonates, can be expected to adjust the pH of the bathwater and generate carbon dioxide. Such organic acids are not particularly limited, but examples include malic acid, citric acid, succinic acid, fumaric acid, maleic acid, lactic acid, tartaric acid, and pyrrolidone carboxylic acid.

[0032] There are no particular restrictions on the coloring agents, but examples include the pigments listed in the Ministry of Health and Welfare Ordinances for Tar Dyes, Appendix I and II, such as Blue No. 1, Blue No. 2, Blue No. 202, Red No. 106, Red No. 2, Yellow No. 5, Yellow No. 4, Yellow No. 202 (1), Green No. 3, Orange No. 205, Green No. 204, Green No. 201, Red No. 102, Red No. 3, and Red No. 227; and natural pigments approved as food additives, such as chlorophyll, riboflavin, annat, anthocyanins, and lycopene.

[0033] Other ingredients include polyethylene glycol, camphor, methyl salicylate, turpentine oil, menthol, dextrin, titanium dioxide, and fragrances. The functions of these other ingredients vary, but for example, polyethylene glycol can be used as a lubricant to control the fluidity of powdered bath compositions, and titanium dioxide can be used as a whitening agent.

[0034] The lubricant content is preferably 0.01 to 1.4% by mass, 0.05 to 1.2% by mass, and 0.1 to 1% by mass, relative to the total amount of the powdered bath composition.

[0035] 2. A set of powdered bath composition for packaging in transparent containers. The set of powdered bath composition for transparent container packaging according to this embodiment comprises a first powdered bath composition and a second powdered bath composition having a different color from the first powdered bath composition, wherein the compressibility of the first powdered bath composition is 14.5% or more.

[0036] The first powdered bath composition and the second powdered bath composition may differ in properties such as color and particle size, allowing for the creation of powder art by combining multiple colored powdered bath compositions. Furthermore, as long as the first powdered bath composition has sufficient fluidity to maintain its shape and the pattern is not easily distorted, powder art can be created even if the second powdered bath composition used in layers is fluid and easily distorted. Therefore, it is not necessary for the compressibility of the second powdered bath composition to be 14.5% or higher, however, when creating more complex powder art or when further combining multiple colored and diverse powdered bath compositions, it is preferable for the compressibility of the second powdered bath composition to be 14.5% or higher.

[0037] The components constituting the first powdered bath composition and the second powdered bath composition are not particularly limited, but examples include the components described above. Furthermore, the compressibility, loosened bulk density, and solidified bulk density of the first powdered bath composition and the second powdered bath composition, as well as the angle of repose and collapse angle, can be the same as those described above.

[0038] 3. Packaged powdered bath composition The containerized powdered bath composition of this embodiment comprises a transparent container, the first powdered bath composition partially filled in the transparent container, and the second powdered bath composition filled on top of the layer of the first powdered bath composition. The second powdered bath composition has a different color from the first powdered bath composition, and the compressibility of the first powdered bath composition is 14.5% or more as described above.

[0039] As such, an example of a packaged powdered bath composition is one in which multiple colors of powdered bath compositions are filled into a transparent glass bottle to create a powder art piece as shown in Figure 3.

[0040] 4. Method for filling powdered bath composition The method for filling the powdered bath composition of this embodiment comprises a first filling step of partially filling the first powdered bath composition into a transparent container, and a second filling step of filling the second powdered bath composition onto the layer of the filled first powdered bath composition. The second powdered bath composition has a different color from the first powdered bath composition as described above, and the compressibility of the first powdered bath composition is 14.5% or more.

[0041] The first powdered bath composition has sufficient fluidity to maintain its shape and its pattern is less likely to collapse, making it suitable as a base layer for filling with the second powdered bath composition. In other words, even when the second powdered bath composition is filled in, the layer shape of the first powdered bath composition is maintained, making it easy to create powder art.

[0042] As mentioned above, the compressibility of the second powdered bath composition may be 14.5% or more, or less than 14.5%. When the compressibility of the second powdered bath composition is 14.5% or more, the moldability of the layers of the second powdered bath composition is improved, making it easier to create more complex powder art.

[0043] 5. Method for creating patterns using powdered bath composition The method for creating patterns using the powdered bath composition of this embodiment comprises a first filling step of partially filling a transparent container with the first powdered bath composition, and a second filling step of filling the layer of the filled first powdered bath composition with the second powdered bath composition. The second powdered bath composition has a different color from the first powdered bath composition as described above, and the compressibility of the first powdered bath composition is 14.5% or more.

[0044] This pattern-creation method, like the filling method described above, uses the first powdered bath composition, which has sufficient fluidity to maintain its shape and prevents the pattern from collapsing, making it suitable as a base layer for filling with the second powdered bath composition. Therefore, even when the second powdered bath composition is filled in, the layer shape of the first powdered bath composition is maintained, making it easy to create patterns such as powder art.

[0045] Furthermore, this pattern creation method may include a step of forming arbitrary irregularities on the surface of the first powdered bath composition after the first filling step. By having a second filling step after this irregularity formation step, it is possible to create complex patterns that are not just simple layers.

[0046] Furthermore, this pattern-creation method can be modified by adding a step after the second filling step in which the upper layer of the second powdered bath composition is indented into the lower layer of the first powdered bath composition. This makes it possible to create complex patterns that are not simply layered. [Examples]

[0047] The present invention will be described more specifically below using examples and comparative examples. The present invention is not limited in any way by the following examples.

[0048] [Example 1] The following ingredients were placed in a resealable bag and mixed by shaking to prepare 300g of the powdered bath composition of Example 1. Anhydrous sodium sulfate 79.89% by mass Sodium bicarbonate 20.0% by mass Polyethylene glycol 400 0.01% by mass Glycine 0.1% by mass In Example 1, the particle size of the dried sodium sulfate was 300 μm or smaller, with 80% by mass or more, and all of the sodium bicarbonate used had a particle size of 300 μm or smaller.

[0049] [Example 2] The following ingredients were placed in a resealable bag and mixed by shaking by hand to prepare 300g of the powdered bath composition of Example 2. Anhydrous sodium sulfate 78.07% by mass Sodium bicarbonate 20.0% by mass Anhydrous silicic acid 0.8% by mass Polyethylene glycol 400 0.01% by mass Glycine 0.1% by mass Fragrance 1.0% by mass Coloring agent (Yellow 202 (1)) 0.02% by mass In Example 2, the particle size of the dried sodium sulfate was 300 μm or smaller, with 80% by mass or more, and all of the sodium bicarbonate used had a particle size of 300 μm or smaller.

[0050] [Comparative Example 1] The following ingredients were placed in a resealable bag and mixed by shaking to prepare 300g of the powdered bath composition of Comparative Example 1. Sodium bicarbonate 97.3% by mass Anhydrous silicic acid 1.5% by mass Fragrance 1.0% by mass Coloring agent (Yellow No. 4) 0.2% by mass In Comparative Example 1, the particle size of the sodium bicarbonate used was 350 μm or less in all cases.

[0051] [Measurement of loose bulk density, compacted bulk density, angle of repose, and collapse angle] Using a powder tester (device name: PT-X, manufactured by Hosokawa Micron Corporation), the loosened bulk density, solidified bulk density, angle of repose, and collapse angle of each powdered bath composition in Examples 1, 2, and Comparative Example 1 were measured, and the compressibility was calculated. The results are shown in Table 1 below.

[0052] [Fluid Evaluation] A cylindrical sample bottle with a capacity of 50 mL and a diameter of 40 mm (screw-cap bottle SV-50A, Nichiden Rika Glass Co., Ltd.) was filled with the powdered bath compositions of Examples 1 and 2 and Comparative Example 1 to a height of 2 cm. A rectangular prism (a polystyrene rod) with a base of 1 cm square was then pushed downwards from the top surface of the powder, with its base facing downwards, so that its side touched the inner wall of the sample bottle, and then slowly pulled out straight (Figure 1A).

[0053] When the rectangular prism (a polystyrene foam rod) was removed, the powder, having lost its support, cascaded into the space left behind. Therefore, the rightward angle (°), leftward angle (°), and depth (mm) of the cascading powder were measured from the side of the sample bottle at that time (see Figure 1C). Furthermore, the area visible from the side of the sample bottle was defined as the area within the 1cm x 1cm region where the rectangular prism was inserted, where the space remained open even as the powder cascaded in. This area was then defined as the indentation area (mm²). 2 The results were calculated using ImageJ. The results are shown in Table 1. Figure 1B shows the results of Example 1 after the rectangular prism (a rod made of expanded polystyrene) was removed, and Figure 1C shows the results of Comparative Example 1.

[0054] [Evaluation of resistance to crumbling] A cylindrical sample bottle with a capacity of 50 mL and a diameter of 40 mm (screw-cap bottle SV-50A, Nichiden Rika Glass Co., Ltd.) was filled with powdered bath composition to a height of 2 cm. Furthermore, 5 g of another powdered bath composition, prepared in the same manner as in Examples 1, 2, and Comparative Example 1 except for the use of a different coloring agent, was slowly poured using a funnel from 5 cm above the top surface of the powder towards a single point at the boundary between the top surface of the powder and the inner wall, creating a mound.

[0055] Other powdered bath compositions refer to those having the same composition as each example and comparative example, except for the pigment. In Example 1, the other powdered bath composition used was the powdered bath composition with the composition of Example 1, to which 0.2% by mass of Blue No. 1 was added as a coloring agent. Figure 2A shows the results of Example 1, Figure 2B shows the results of Example 2, and Figure 2C shows the results of Comparative Example 1. Note that in Figure 2C, because it is a grayscale image, it is difficult to grasp the color differences of the layered powdered bath compositions, so auxiliary lines have been drawn to show what kind of layered structure it is.

[0056] As shown in Figure 2C, in each example, the height of the mound and the right and left angles formed by the slope and horizontal plane near the base of the mound were measured when viewed from the side of the sample bottle. Furthermore, 5g of a sample containing a different dye was similarly poured onto the top of the first mound to make it even higher. Next, the height of the first mound (lower height) and the thickness of the layer accumulated on top (upper height) were measured when viewed from the side of the sample bottle, and the upper right angle, upper left angle, lower right angle, and lower left angle formed by the slope and horizontal plane near the base of each mound were measured. The results are shown in Table 1.

[0057] [Table 1]

[0058] As described above, the examples demonstrated that the powdered bath composition has sufficient fluidity to maintain its shape, and that once formed, it is less likely to collapse even when another powdered bath composition is filled on top. Furthermore, Figure 3 shows the results of creating powder art in a glass bottle using the composition of Example 2, except for a change in the type of colorant. Thus, a powdered bath composition that has sufficient fluidity to maintain its shape and that is less likely to collapse once formed, even when another powdered bath composition is filled on top, makes it possible to create complex patterns.

[0059] [Evaluation of caking properties] 20g of powdered bath composition was filled into a cylindrical sample bottle (screw-cap bottle SV-50A, Nichiden Rika Glass Co., Ltd.) with a capacity of 50mL and a diameter of 40mm. The bottle was left uncovered and placed in a constant temperature and humidity chamber at 40°C and 75% humidity for 4 hours. After 4 hours, the bottle was removed from the chamber, slowly tilted on its side, and the way the powdered bath composition crumbled was observed. The ease with which the powdered bath composition solidified was evaluated according to the evaluation criteria below. (Evaluation Criteria) 1: The powder did not crumble at all. 2: The surface of the powder crumbled. 3: The powder crumbled, but the bottom of the sample bottle was not exposed. 4: The powder crumbled, exposing the bottom of the sample bottle.

[0060] [Table 2]

[0061] In Example 2, the powder crumbled to the point where the bottom of the sample bottle was exposed, but in Comparative Example 1, although the powder crumbled, it did not expose the bottom. This confirmed that the powdered bath composition of this embodiment can be used as a bath composition without solidifying, even when used in powder art or other applications in a glass bottle and placed in a high-humidity environment such as near a bathroom. [Industrial applicability]

[0062] The powdered bath composition of the present invention has industrial applicability as a powdered bath composition that can also be used in powder art and the like in glass bottles.

Claims

1. Filled in a transparent container, The compression ratio expressed by the following formula (1) is 14.5% or higher. Compressibility (%) = ((Compressed bulk density (g / mL) - Loose bulk density (g / mL)) / Compressed bulk density (g / mL)) × 100 ... Equation (1) Powdered bath composition.

2. It can maintain the desired shape formed after filling. The compression ratio expressed by the following formula (1) is 14.5% or higher. Compressibility (%) = ((Compressed bulk density (g / mL) - Loose bulk density (g / mL)) / Compressed bulk density (g / mL)) × 100 ... Equation (1) Powdered bath composition.

3. The difference between the angle of repose and the angle of collapse is 16° or more. The powdered bath composition according to claim 1 or 2.

4. A set of powdered bath compositions for packaging in transparent containers, A first powdered bath composition, The invention comprises a second powdered bath composition having a different color from the first powdered bath composition, The compressibility of the first powdered bath composition, represented by the following formula (1), is 14.5% or more. Compressibility (%) = ((Compressed bulk density (g / mL) - Loose bulk density (g / mL)) / Compressed bulk density (g / mL)) × 100 ... Equation (1) A set of powdered bath composition.

5. A transparent container, A first powdered bath composition partially filled in the transparent container, The invention comprises a second powdered bath composition filled on a layer of the first powdered bath composition that has been filled, The second powdered bath composition has a different color from the first powdered bath composition. The compressibility of the first powdered bath composition, represented by the following formula (1), is 14.5% or more. Compressibility (%) = ((Compressed bulk density (g / mL) - Loose bulk density (g / mL)) / Compressed bulk density (g / mL)) × 100 ... Equation (1) A containerized powdered bath composition.

6. A method for filling powdered bath compositions, A first filling step involves partially filling a transparent container with a first powdered bath composition, The process includes a second filling step of filling a layer of the first powdered bath composition with a second powdered bath composition of a different color from the first powdered bath composition, The compressibility of the first powdered bath composition, represented by the following formula (1), is 14.5% or more. Compressibility (%) = ((Compressed bulk density (g / mL) - Loose bulk density (g / mL)) / Compressed bulk density (g / mL)) × 100 ... Equation (1) Filling method.

7. A method for creating patterns using a powdered bath composition, A first filling step involves partially filling a transparent container with a first powdered bath composition, The process includes a second filling step of filling a layer of the first powdered bath composition with a second powdered bath composition of a different color from the first powdered bath composition, The compressibility of the first powdered bath composition, represented by the following formula (1), is 14.5% or more. Compressibility (%) = ((Bulk density when compressed (g / mL) - Bulk density when loosened (g / mL)) / Bulk density when compressed (g / mL)) × 100 ... Equation (1) Pattern creation method.

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