Powdery moisturizing bath agent for foam bath, mainly composed of natural ingredient, and method for producing the same

Abstract

To provide a powdery bath agent composition for a foam bath, mainly composed of a natural ingredient, which enables the formation of a foam bath by generating foam.SOLUTION: A bath agent composition comprises a foaming agent, where the foaming agent contains a plant-derived surfactant and is in powder form.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a powdered moisturizing bath additive for bubble baths containing natural ingredients as a main ingredient and a method for producing the same, and more particularly to a powdered moisturizing bath additive for bubble baths containing plant-derived ingredients as a main ingredient and a method for producing the same. [Background technology]

[0002] Bath additives, also known as bath additives, are added to the bath water during bathing to enhance the inherent effects of bathing, such as warming the body and keeping the skin clean. Bath additives are also used to add fragrances and colors to the water for enjoyment. The ingredients used in bath additives vary depending on the purpose of their use, but bath additives containing plant-derived ingredients such as medicinal plants or their extracts as active ingredients, for example volatile essential oils obtained from the flowers, leaves, roots, etc. of various plants, have been known for a long time (see, for example, Patent Document 1).

[0003] On the other hand, there are bath additives that can be mixed into the bath water to create bubbles, creating a bubble bath. A surfactant is often used to create the bubbles, which have a cleansing effect that keeps the skin clean. The bubbles also have a heat-retaining effect, covering the surface of the bath water. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2011-1288 A Summary of the Invention [Problem to be solved by the invention]

[0005] Here, bath additives with excellent foaming properties often contain only synthetic surfactants as foaming agents, but this does not necessarily match consumers' health and environmental consciousness. In particular, there are bath additive-free products made from natural ingredients that are marketed as bath additives for people prone to symptoms such as atopic dermatitis and for infants. However, bath additives containing natural surfactants are not suitable for bubble baths because the foam they generate does not last long. In addition, it is difficult to make the bath additives in powder form, which makes them difficult to handle and less stable when stored.

[0006] An object of the present invention is to provide a powdered bath agent composition containing natural ingredients as a main ingredient, which can create a bubble bath with bubbles that last for a long time. [Means for solving the problem]

[0007] As a result of extensive research, the inventors have discovered that by simultaneously combining a foaming agent containing a plant-derived surfactant with a powdering agent, it is possible to obtain a powdered bath agent composition containing primarily natural ingredients that can create a bubble bath with excellent long-lasting bubbles.

[0008] That is, the present invention provides the following bath agent composition and method for producing the same. [1] A bath agent composition comprising a foaming agent, The foaming agent contains a plant-derived surfactant, The bath agent composition is in powder form. [2] The bath additive composition described in [1], wherein the foaming agent contains potassium cocoate. [3] The bath additive composition according to [1] or [2], further comprising a powdering agent. [4] The bath additive composition described in [3], wherein the powdering agent contains dextrin. [5] The bath agent composition according to any one of [1] to [4], further comprising one or more selected from the group consisting of moisturizing ingredients derived from plants and skin conditioning ingredients derived from hot springs. [6] The bath agent composition according to any one of [1] to [5], wherein the foaming agent content is 3.0 mass% or more based on the total amount of the bath agent. [7] A method for producing a bath additive composition, comprising a step of drying a raw material containing at least a foaming agent by spray drying, The method, wherein the foaming agent comprises a plant-derived surfactant. Effect of the Invention

[0009] According to the present invention, it is possible to provide a powdered bath agent composition containing natural ingredients as a main ingredient, which can create a bubble bath with excellent foam retention. In addition, because the bath agent composition of the present invention is in powder form, it can efficiently exert its function with a small amount of use, and is easy to handle and has excellent storage stability. [Brief description of the drawings]

[0010] [Figure 1] The results of the microscopic photograph and the measurement results of the particle size distribution of Bath Additive 1 are shown. [Diagram 2] The results of the microscopic photograph and the measurement results of the particle size distribution of bath additive 2 are shown. [Diagram 3] The results of the microscopic photograph and the measurement results of the particle size distribution of bath additive 3 are shown. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Bath additive composition The bath agent composition of the present invention (hereinafter, simply referred to as "bath agent" or "composition") also contains a plant-derived foaming agent and has a powder form. The effects of the bath agent of the present invention are as follows: 1. Excellent cleaning properties. For example, simply soaking in the bath will remove dirt such as sebum, sweat, and dead skin cells, so there is no need to scrub. 2.Excellent moisturizing properties. 3.Excellent heat retention. 4. The bubbles generated last a long time. You can create bubbles to create a bubble bath. 5. Reduction of residual chlorine in tap water. 6. No or minimal use of petroleum-derived ingredients.

[0012] The bath additive composition means a composition that is added to the bath water during bathing in order to enhance the inherent effects of bathing, such as warming the body and keeping the skin clean. Under Japanese laws and regulations, "bath additives" refer to quasi-drugs for use in the bath that are expected to have health benefits such as warming the body, while "bath charges" refer to bath cosmetics that are added to bath water, and the two are distinguished. However, in this specification, the terms "bath additive composition" and "bath additive" are used without distinction as concepts that include both. Bath water is, for example, about 40°C, with 100 to 300 liters of water stored in a bathtub.

[0013] Foaming Agent The foaming agent contained in the bath additive of the present invention is an agent for imparting foaming properties to the bath additive, and contains a plant-derived surfactant. Plant-derived surfactants are components that are naturally occurring in nature as natural substances, unlike surfactants obtained by organic synthesis from petroleum-based raw materials. The foaming agent may contain only a plant-derived surfactant or may contain a trace amount of a synthetic surfactant in combination, but it is preferable that the foaming agent contains only a plant-derived surfactant.

[0014] The plant-derived surfactant refers to the plant itself containing a foaming component and a component extracted from the plant. The method of extraction from the plant is not particularly limited, and examples thereof include extraction with water or an organic solvent such as alcohol. The plants may be used singly or in combination of two species.

[0015] The plant-derived surfactant is not particularly limited as long as it is a component that has foaming properties and can be contained in a plant, and known components can be used, but coconut fatty acid K is preferred in order to more reliably achieve the effects of the invention. Here, the known ingredients are, for example, those known as quasi-drug ingredients or cosmetic ingredients, and specifically, those listed in the Quasi-drug Ingredients Standards 2021 issued by the Pharmaceutical and Food Safety Bureau of the Ministry of Health, Labor and Welfare. The same applies to plant-derived oils and fats, hot spring skin conditioning ingredients, mineral ingredients, and powdering agents. The plant-derived surfactants may be used alone or in combination.

[0016] The foaming agent may further contain a surfactant other than the plant-derived surfactant in order to adjust the function of the foaming agent, as long as the action or effect of the present invention is not impaired. Examples of such surfactants include sodium lauroyl methylalanine and cocamidopropyl betaine.

[0017] The content of the foaming agent is preferably 3.0% by mass or more, more preferably 5.0% by mass or more, and even more preferably 10% by mass or more, based on the total amount (100% by mass) of the bath additive.

[0018] Plant-derived oils The bath additive of the present invention may further contain a plant-derived moisturizing component in order to enhance moisturizing properties.

[0019] The plant-derived oils and fats are not particularly limited as long as they are plant-derived moisturizing components that enhance the skin care effect, and known components can be used, but in order to more reliably achieve the effects of the invention, jojoba seed oil, shea butter, Argania spinosa kernel oil (argan oil), olive fruit oil, grape seed oil, rice germ oil, rice bran oil, avocado oil, camellia seed oil, squalane (olive origin), pomegranate seed oil, pistachio seed oil, peony seed oil, pearl barley oil, and tea seed oil are preferred. In particular, jojoba seed oil, shea butter, and Argania spinosa kernel oil (argan oil) are organic components and are more preferred. The plant-derived oils and fats may be used alone or in combination of two types.

[0020] The bath additive may further contain moisturizing ingredients other than the plant-derived oils and fats in order to further enhance moisturizing properties, as long as the action or effect of the present invention is not impaired. Examples of such moisturizing ingredients include glycerin.

[0021] Hot spring skin conditioning ingredients The bath additive of the present invention may further contain a hot spring skin conditioning component in order to enhance the warm bath effect and the skin care effect.

[0022] The hot spring skin conditioning ingredients are not particularly limited as long as they enhance the hot bath effect and skin care effect, and known ingredients can be used, but in order to more reliably achieve the effects of the invention, sodium carbonate, sodium sulfate, sodium thiosulfate, and sodium metasilicate are preferred. Hot spring skin conditioning ingredients are used either alone or in combination of two types.

[0023] Additives The bath additive of the present invention may further contain additives to enhance the skin care effect and the drying effect of protecting the bath additive from moisture.

[0024] The additives are not particularly limited, and known ingredients can be used depending on the purpose. Examples of the additives include drying agents such as silica for removing excess moisture in the bath additive, fragrances, coloring agents, and preservatives. The additives may be used alone or in combination of two or more.

[0025] Powdering agent The bath additive of the present invention may further contain a powdering agent so that the bath additive can stably maintain its powder form.

[0026] The powdering agent is not particularly limited as long as it contributes to maintaining the bath additive in a powdered form, and any known ingredient can be used. Examples of the powdering agent include dextrin and calcium carbonate, and it is preferable to use one that contains dextrin in order to more reliably achieve the effects of the invention. The powdering agents may be used alone or in combination of two or more.

[0027] The content of the powdering agent is preferably 10% by mass or more, more preferably 15% by mass or more, and even more preferably 20% by mass or more, based on the total amount (100% by mass) of the bath additive.

[0028] The mass ratio of the foaming agent to the powdering agent is preferably 1 / 10 to 10 / 1, more preferably 1 / 5 to 5 / 1, and even more preferably 1 / 3 to 3 / 1.

[0029] The bath agent of the present invention contains a foaming agent containing a plant-derived surfactant, and at the same time, a powdering agent, so that it has a powdery form and can be used to create a bubble bath with excellent foam retention. A powdery bath agent containing natural ingredients as the main ingredient can be prepared. The factors that enable such a bath agent to be obtained are not necessarily clear, but are presumed to be as follows (although not limited to these factors). Compared to foaming agents containing only synthetic surfactants, foaming agents containing plant-derived surfactants contain various impurities derived from the raw plant, such as components that are low in volatility and liquid at room temperature. It is believed that the inclusion of these components in the bath agent inhibits the bath agent from changing into a solid or powdery form, and that these components are not removed by simple operations such as heating or drying. On the other hand, since these components are not contained in large amounts, the bath agent can take a powdery form by containing an effective amount of a powdering agent or by being purified in a step of drying by spray drying, which will be described later.

[0030] The bath additive may be packaged in a film. The film is not particularly limited as long as it has any barrier property that prevents the penetration of the bath additive components in the contents, but it is preferable that the film has a gas barrier property that prevents the penetration of oxygen gas, water vapor, etc.

[0031] Method for producing bath agent composition The method for producing the bath agent composition of the present invention includes a step of drying, by spray drying, a raw material containing at least a foaming agent. The foaming agent contains a plant-derived surfactant, similar to the foaming agent described above.

[0032] A known spray dryer can be used for the spray drying. In order to obtain a powdered bath agent more efficiently, it is preferable that the inlet temperature of the spray dryer is 100 to 200°C and the outlet temperature is 50 to 80°C. EXAMPLES

[0033] The present invention will be described in more detail below with reference to examples, although the present invention is not limited to these descriptions.

[0034] The materials used in the examples are as follows: <Foaming agent> Sodium Lauroyl Methylalanine Cocamidopropyl Betaine Potassium coconut fatty acid <Powdering agent> Dextrin <Moisturizing ingredients> Glycerin Jojoba seed oil Shea butter ·Argania spinosa kernel oil (argan oil) Olive fruit oil Grape seed oil ·Rice germ oil Rice bran oil Avocado oil Camellia seed oil Squalane (derived from olives) Pomegranate seed oil Pistachio seed oil Peony seed oil · Job's tears oil Tea seed oil <Hot spring skin conditioning ingredients> Sodium sulfate Sodium Carbonate Sodium thiosulfate Sodium metasilicate <Additives> ·silica

[0035] Preparation of bath salts Bath additives 1 to 3 were produced as Lot Nos. 1 to 3 under the conditions shown in the table below. Specifically, all of the foaming agents and the powdering agent were placed in a container in a mass ratio of 1:1, and mixed while adjusting with water to the "solid content concentration" in the table below. Other conditions were as shown in the "Concentration of the original solution" in the table below. The resulting mixture was sprayed in small amounts using a spray dryer with the hot air inlet temperature and exhaust air outlet temperature set to the specified temperatures, and dried into powder to obtain bath additives 1 to 3. Other conditions were as shown in the "operating conditions" in the table below. The resulting bath additives were as shown in the "product" in the table below. The conditions of measurements etc. used to obtain the values ​​etc. shown in the table are as shown in "Measurement conditions". The micrographs of the bath additives and the particle size distribution measurements are shown in FIGS.

[0036] [Table 1]

[0037] The mass of the fallen and recovered material after the completion of Lot 1 and Lot 3 was 2.00 kg and 0.55 kg, respectively. The outdoor conditions were: dry bulb temperature 17°C, wet bulb temperature 15°C, relative humidity 80%, and absolute humidity 0.0096 kg / kgDA.

[0038] The particle shapes of bath additives 1 to 3 were confirmed to be spherical or crushed, and a powder form was obtained. After finishing the production of Bath Additive 1, we checked the accumulation in the cone section of the drying chamber. We confirmed that the accumulation was thin in the areas where the moisturizing agent was applied, and thick in the lower area where the moisturizing agent was not applied. The recovery rate of bath additive 2 was higher than that of bath additive 1, and after production of bath additive 2 was completed, there was less accumulation in the conical part of the drying chamber. After the production of Bath Additive 3 was completed, adhesion and accumulation were observed inside the drying chamber compared to that of Bath Additive 2.

[0039] Next, moisturizing ingredients, hot spring skin conditioning ingredients, and additives were added to and mixed with bath additives 1 to 3, respectively, to obtain bath additives 4 to 6. These bath additives were stable in powder form, and when used in a bubble bath, they generated bubbles that lasted long.

Claims

1. A bath agent composition comprising a foaming agent, The foaming agent contains a plant-derived surfactant, The bath agent composition is in powder form.

2. 2. The bath composition of claim 1, wherein the foaming agent comprises potassium cocoate.

3. The bath agent composition according to claim 1 or 2, further comprising a powdering agent.

4. The bath agent composition according to claim 3, wherein the powdering agent contains dextrin.

5. The bath agent composition according to any one of claims 1 to 4, further comprising at least one selected from the group consisting of moisturizing ingredients derived from plants and skin conditioning ingredients derived from hot springs.

6. The bath agent composition according to any one of claims 1 to 5, wherein the foaming agent content is 3.0 mass% or more based on the total amount of the bath agent.

7. A method for producing a bath agent composition, comprising a step of drying a raw material including at least a foaming agent by spray drying, The method, wherein the foaming agent comprises a plant-derived surfactant.

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