KR102239796B1 - Cold press soap and manufacturing method for the same - Google Patents

Abstract

The present invention comprises 100 parts by weight of a saponification reaction product of a base oil and an aqueous sodium hydroxide solution; 1.5 parts by weight to 2 parts by weight of bergamot essential oil; 1.5 parts by weight to 2.5 parts by weight of a natural pigment including at least one of kale powder, chlorella powder, and flax seed powder; 0.4 to 0.5 parts by weight of ascorbic acid; And 0.2 parts by weight to 3 parts by weight of tocopherol; It relates to a low-temperature aging natural soap comprising a and a method for producing the same.

Description

Low temperature aged natural soap and its manufacturing method {COLD PRESS SOAP AND MANUFACTURING METHOD FOR THE SAME}

The present invention relates to a low-temperature aging natural soap capable of reducing and removing a chlorine component to form natural glycerin, and a method for producing the same.

Synthetic soaps and natural soaps are widely known as soap types. Synthetic soap produces a large amount of solid soap by saponifying an oil component and a strong base aqueous solution. In this process, the soap may contain a non-natural substance such as a solidifying agent for solidification. However, some non-natural substances contained in soap may cause skin troubles or biologically difficult to decompose, leading to potential environmental pollution.

Accordingly, in recent years, the demand for natural soap is increasing in order to reduce irritation to the skin by excluding the use of non-natural substances and lowering the amount of strong base aqueous solution.

In general, natural soap is prepared by dissolving a soap base according to the manufacturing method and then adding skin active ingredients to melt and pour soap (MP soap), after saponifying a base oil and a base solution, and then adding skin active ingredients. There are CP soap (cold press soap) manufactured by using the method, and HP soap (hot press soap), which heats the saponification reaction product with a solvent at high temperature.

However, in general, natural soap has a low degree of saponification of oil and is difficult to solidify due to a reduction in the amount of the aqueous base solution. In addition, in the case of melt-puffed soap, there is a disadvantage in that the foaming ability of the soap is lowered by the added active ingredient, and in the case of the high-temperature method, there is a disadvantage in that the effective ingredient may be decomposed at high temperature when the skin active ingredient is added.

One object of the present invention is to exclude the use of synthetic additives such as a solidifying agent, but excellent soap properties such as foaming ability and saponification, reduce thermal breakdown of skin active ingredients, and reduce residual chlorine components of raw materials. It is to provide a low-temperature aged soap that can be removed and can form natural glycerin.

Another object of the present invention is to eliminate the use of synthetic additives such as a solidifying agent, but excellent soap properties such as foaming ability and saponification, reduce thermal breakdown of skin active ingredients, and reduce and remove chlorine components of raw materials. It is to provide a low-temperature aging soap capable of forming natural glycerin in a more economical way.

One embodiment of the present invention is a base oil and 100 parts by weight of a saponification reaction product of an aqueous sodium hydroxide solution; 1.5 parts by weight to 2 parts by weight of bergamot essential oil; 1.5 parts by weight to 2.5 parts by weight of a natural pigment including at least one of kale powder, chlorella powder, and flax seed powder; 0.4 to 0.5 parts by weight of ascorbic acid; And 0.2 parts by weight to 3 parts by weight of tocopherol; It relates to a low-temperature aging natural soap comprising a.

In another embodiment of the present invention, the base oil and sodium hydroxide aqueous solution preheated to a temperature of 45° C. to 50° C. are added to a reactor preheated to a temperature of 45° C. to 50° C. and then stirred to prepare a saponification reaction product; 100 parts by weight of the saponification reactant; 1.5 parts by weight to 2 parts by weight of bergamot essential oil; 1.5 parts by weight to 2.5 parts by weight of a natural pigment including at least one of kale powder, chlorella powder, and flax seed powder; Adding to prepare a first mixture; Preparing a second mixture by adding 0.4 parts by weight to 0.5 parts by weight of ascorbic acid based on 100 parts by weight of a saponification reaction product to the first mixture; Preparing a soap trace by adding 0.2 parts by weight to 3 parts by weight of tocopherol to the second mixture; And solidifying the soap trace in a thermal insulation container maintained at a temperature of 45° C. to 50° C. for 18 to 30 hours to form a solid soap.

The low-temperature aging natural soap manufacturing method may further include aging and drying the solid soap at a temperature of 25°C to 30°C and a humidity condition of 35% to 45% for 30 to 35 days.

In the above embodiments, the weight ratio of the base oil and the sodium hydroxide aqueous solution before the reaction of the saponification reactant may be 10:90 to 50:50.

In the above embodiments, the sodium hydroxide aqueous solution may have a concentration of 30 v/v% to 70 v/v%, or a pH of 10 to 13.

In the above embodiments, the base oil may include one or more of coconut oil, palm oil, sunflower oil, olive oil, camellia oil, grape seed oil, avocado oil, and castor oil.

In the above embodiments, the base oil is 5% to 30% by weight of coconut oil; 5% to 20% by weight palm oil; 5% to 20% by weight of sunflower oil; 5% to 20% by weight olive oil; Camellia oil 5% to 20% by weight; 5% to 20% by weight of grapeseed oil; 5% to 20% by weight of avocado oil; And 5 to 15% by weight of castor oil; It may be to include.

The present invention excludes the use of synthetic additives such as a solidifying agent, has excellent soap properties such as foam generation ability and saponification degree, reduces thermal destruction of skin active ingredients, and reduces and removes chlorine components of raw materials, It provides a low-temperature aging soap capable of forming natural glycerin and an economical preparation method thereof.

1 is a sequence diagram illustrating a method of manufacturing a low-temperature aging soap according to an embodiment of the present invention.

One embodiment of the present invention is a base oil and 100 parts by weight of a saponification reaction product of an aqueous sodium hydroxide solution; 1.5 parts by weight to 2 parts by weight of bergamot essential oil; 1.5 parts by weight to 2.5 parts by weight of a natural pigment including at least one of kale powder, chlorella powder, and flax seed powder; 0.4 to 0.5 parts by weight of ascorbic acid; And 0.2 parts by weight to 3 parts by weight of tocopherol; It relates to a low-temperature aging natural soap comprising a.

Through this, the present invention provides a low-temperature aged soap having excellent soap properties such as foam generation ability and saponification degree, and reducing thermal destruction of skin active ingredients, while excluding the use of synthetic additives such as a solidifying agent.

In particular, the low-temperature aging soap of the present invention can be removed by reducing, for example, a chlorine component derived from a raw material such as tap water, and can realize the effect of forming natural glycerin. In this case, while preventing skin irritation caused by ingredients such as chlorine, it is possible to implement the effect of improving skin moisturization and skin barrier function.

The base oil may include one or more of coconut oil, palm oil, sunflower oil, olive oil, camellia oil, grape seed oil, avocado oil, and castor oil. In this case, a saponification reaction of the aqueous sodium hydroxide solution may occur to improve soap properties, while improving skin moisturization and skin conditioning effects due to low-temperature aging soap.

Among the base oils, coconut oil not only increases the degree of saponification by reacting with aqueous sodium hydroxide solution, but also acts on the skin to inhibit moisture evaporation in the stratum corneum, improve skin moisture, improve skin barrier function, and prevent skin troubles. You can implement the effect.

The content of coconut oil in the base oil may be 5% to 30% by weight, specifically 20% to 30% by weight, and more specifically 20% to 25% by weight. Within the above range, while increasing the degree of saponification by reacting with the aqueous sodium hydroxide solution, the effect of improving skin moisturization, improving skin barrier function, and preventing skin troubles can be realized at a more excellent level.

Among the base oils, palm oil not only increases the degree of saponification by reacting with the aqueous sodium hydroxide solution, but also improves the degree of solidification of the soap, and acts on the skin to reduce damage and skin inflammation caused by free radicals, and to implement the effect of supplying antioxidants. I can.

The content of palm oil in the base oil may be 5% to 20% by weight, specifically 10% to 20% by weight, and more specifically 10% to 15% by weight. Within the above range, while increasing the degree of saponification and solidification by reacting with the aqueous sodium hydroxide solution, the effect of acting on the skin to reduce damage and skin inflammation caused by free radicals, and to supply antioxidant components can be realized at a more excellent level. .

Among the base oils, sunflower oil reacts with aqueous sodium hydroxide solution to improve skin barrier function, improve skin moisturization, supply various antioxidants, and implement effects of preventing skin troubles.

The content of sunflower oil in the base oil may be 5% to 20% by weight, specifically 5% to 15% by weight, and more specifically 5% to 10% by weight. Within the above range, the effect of improving the skin barrier function, improving skin moisture, supplying various antioxidants, and preventing skin troubles can be realized at a more excellent level.

Among the base oils, olive oil implements anti-inflammatory and antibacterial effects to prevent skin irritation, itchiness, and skin troubles, and increases the moisturizing effect while preventing stickiness or residual feeling after washing due to fatty acid oil components in the base oil. The effect can be implemented.

The content of olive oil in the base oil may be 5% to 20% by weight, specifically 5% to 15% by weight, and more specifically 5% to 10% by weight. Within the above range, anti-inflammatory and antibacterial effects, prevention of skin irritation, itchiness, and skin troubles, and the effect of increasing the moisturizing effect while preventing stickiness or residual sensation after washing due to fatty acid oil components in the base oil can be realized at a more excellent level. I can.

Among the base oils, camellia oil not only increases the degree of saponification by reacting with aqueous sodium hydroxide solution, but also acts on the skin to inhibit moisture evaporation in the stratum corneum, improve skin moisture, improve skin barrier function, and prevent skin troubles. , It can implement the effect of supplying antioxidant components.

The content of camellia oil in the base oil may be 5% to 20% by weight, specifically 5% to 15% by weight, and more specifically 5% to 10% by weight. Within the above range, while increasing the saponification degree by reacting with the sodium hydroxide aqueous solution, the effect of improving skin moisturization, improving skin barrier function, preventing skin troubles, and supplying antioxidant components can be realized at a more excellent level.

Among the base oils, grapeseed oil not only increases the degree of saponification by reacting with aqueous sodium hydroxide solution, but also acts on the skin to inhibit moisture evaporation in the stratum corneum, improve skin moisture, improve skin barrier function, and supply antioxidants. You can implement the effect.

The content of grapeseed oil in the base oil may be 5% to 20% by weight, specifically 5% to 15% by weight, and more specifically 5% to 10% by weight. Within the above range, while increasing the saponification degree by reacting with the aqueous sodium hydroxide solution, the effect of improving skin moisturization, improving skin barrier function, and supplying antioxidant components can be realized at a more excellent level.

Among the base oils, avocado oil reacts with aqueous sodium hydroxide solution to increase saponification, as well as anti-inflammatory and antibacterial effects, to implement the effect of preventing skin irritation, itchiness, and skin troubles, and to implement excellent skin conditioning effects. .

The content of avocado oil in the base oil may be 5% to 20% by weight, specifically 5% to 15% by weight, and more specifically 5% to 10% by weight. Within the above range, anti-inflammatory and antibacterial effects, skin irritation, prevention of itchiness and skin troubles, and skin conditioning effects can be realized at a more excellent level.

Among the base oils, castor oil not only increases the degree of saponification by reacting with aqueous sodium hydroxide solution, but also provides skin moisturizing effects, while acting on the skin to have anti-inflammatory, antibacterial and fungal effects, thereby preventing skin itching and skin troubles. Can be implemented.

It may be specifically 5% to 15% by weight, more specifically 5% to 10% by weight of castor oil in the base oil. Within the above range, the effect of preventing skin moisturizing effect, anti-inflammatory, antibacterial, and fungal action, such as skin itching, skin troubles, etc., can be realized at a more excellent level.

In a specific embodiment, the base oil may include all of coconut oil, palm oil, sunflower oil, olive oil, camellia oil, grape seed oil, avocado oil, and castor oil. In this case, a saponification reaction of the aqueous sodium hydroxide solution is caused to improve soap properties, and at the same time, remarkably excellent skin moisturization and skin conditioning effects can be realized by low-temperature aged soap. In addition, the coconut oil, palm oil, sunflower oil, olive oil, camellia oil, grapeseed oil, avocado oil and castor oil are removed by reducing skin components such as chlorine contained in the raw material through a complex synergistic action to prevent skin irritation, It can further increase the effect of improving skin moisturizing and skin barrier function.

The aqueous sodium hydroxide solution proceeds with a saponification reaction with the unsaturated fatty acid group of the base oil to realize a cleaning effect by surfactant and to produce glycerin. Such glycerin serves to prevent irritation by excessively washing the skin by the low-temperature aging soap, and to further improve skin moisturization after washing.

The sodium hydroxide aqueous solution may have a concentration of 30 v/v% to 70 v/v%, specifically 30 v/v% to 65 v/v%, and more specifically 30 v/v% to 50 v/v%. . Within the above range, the aqueous sodium hydroxide solution can achieve both skin cleansing power by saponification degree of low-temperature aging soap and skin moisturization by glycerin production amount.

The sodium hydroxide aqueous solution may have a pH of 10 to 13, specifically 11 to 13, and more specifically 11 to 12. Within the above range, the sodium hydroxide aqueous solution can control the pH of the finally prepared low-temperature aging soap in a range of 6 to 8 suitable for the skin, while increasing the saponification rate in the low-temperature aging process of the low-temperature aging soap. .

When the base oil and the aqueous sodium hydroxide solution are mixed, the vegetable fatty acid ester group contained in the base oil and the hydroxyl group of sodium hydroxide initiate a saponification reaction to produce a fatty acid sodium salt.

The weight ratio of the base oil and the sodium hydroxide aqueous solution before the reaction of the saponification reactant may be 10:90 to 50:50, specifically 30:70 to 50:50, and more specifically 40:60 to 50:50. Within the above range, the saponification rate of the saponification reaction product obtained after the saponification reaction can be improved, and the balance of the saponification degree, glycerin content, pH and moisture content of the low-temperature aging soap can be improved to an excellent range.

The low-temperature aging soap of the present invention contains bergamot essential oil. Bergamot essential oil is excellent in combination with the above-described base oil, can act as a natural fragrance for low-temperature aged soap, and can realize a skin soothing effect by an aroma component.

The content of bergamot essential oil may be 1.5 parts by weight to 2 parts by weight, specifically 1.6 parts by weight to 1.9 parts by weight, more specifically 1.7 to 1.8 parts by weight, based on 100 parts by weight of the saponification reaction product. Within the above range, while further improving the compatibility with the above-described base oil, it is possible to enhance the fragrance and further improve the skin soothing effect by the aroma component.

The low-temperature aging soap of the present invention contains natural pigments. The natural pigments are derived from plants and can provide skin-active ingredients while imparting a natural and beautiful color to low-temperature aging soaps.

The natural pigment may include one or more of kale powder, chlorella powder, and flaxseed powder. In this case, while imparting a natural and beautiful color to the low-temperature aging soap, while simultaneously supplying skin active ingredients, each of the natural pigment powders can act on the appearance design of the soap, and increase the degree of solidification of the low-temperature aging soap. A large amount of fiber contained in the pigment powder can achieve the effect of removing skin impurities and dead skin cells.

In particular, natural pigments comprising at least one of kale powder, chlorella powder, and flaxseed powder act synergistically with antioxidants contained in the above-described base oil, so that, for example, a chlorine component derived from a raw material such as tap water It can improve the effect of removing by reducing.

The kale powder embodies a natural green color in low-temperature aging soap, prevents product discoloration due to chemical action or ultraviolet rays, and supplies vegetable proteins, vitamins, and antioxidants in large quantities to improve skin aging prevention effect.

The chlorella powder implements a vivid green color in low-temperature aging soap, supplies vegetable proteins, vitamins, and antioxidants in large quantities, and improves the effect of promoting skin regeneration.

The flaxseed powder may implement a brown, light brown color or natural pattern in low-temperature aging soap, remove waste matter or aging stratum corneum from the skin surface, and reduce dryness of the skin.

The content of the natural pigment may be 1.5 parts by weight to 2.5 parts by weight, specifically 1.6 parts by weight to 2.4 parts by weight, more specifically 1.7 to 2.3 parts by weight, based on 100 parts by weight of the saponification reactant. Within the above range, the natural pigment may increase the effect of supplying skin active ingredients while imparting a natural and beautiful color to the low-temperature aging soap.

In an embodiment, the natural pigment may include all of kale powder, chlorella powder, and flaxseed powder. In this case, the weight ratio of the kale powder, chlorella powder, and flax seed powder may be 1:0.3 to 1:0.3 to 1, specifically 1:0.3 to 0.6:0.3 to 0.5. Within the above range, the natural pigment can further increase the effect of supplying skin active ingredients while imparting a natural and beautiful color to the low-temperature aging soap.

The low-temperature aging soap of the present invention contains ascorbic acid. When the ascorbic acid is applied to low-temperature aging soap, it acts on the skin after washing to improve the regeneration of connective tissues and supporting tissues of the stratum corneum of the skin, and reduce damage and skin inflammation due to free radicals. In addition, for example, it is possible to improve the effect of reducing and removing chlorine components derived from raw materials such as tap water.

The content of ascorbic acid may be 0.4 parts by weight to 0.5 parts by weight, specifically 0.42 parts by weight to 0.48 parts by weight, more specifically 0.44 to 0.46 parts by weight, based on 100 parts by weight of the saponification reactant. Within the above range, it is possible to further improve the regeneration of connective tissues and supporting tissues of the stratum corneum of the skin, reduce damage and skin inflammation due to active oxygen, and remove residual chlorine components from the raw materials.

The low-temperature aging soap of the present invention contains tocopherol. When the ascorbic acid is applied to low-temperature aging soap, it acts on the skin after washing to implement a protective function that prevents damage to the epidermal layer due to ultraviolet rays, etc., and can reduce damage and skin inflammation caused by free radicals, and skin moisture loss It can prevent, improve the skin barrier function, and prevent damage to the oil balance of the skin protective film during the skin cleaning process.

The content of tocopherol may be 0.2 to 3 parts by weight, specifically 0.2 to 2 parts by weight, more specifically 0.2 to 1.7 parts by weight, based on 100 parts by weight of the saponification reaction. Within the above range, it is possible to further increase the effect of preventing and protecting the epidermal layer from damage due to ultraviolet rays, reducing damage and skin inflammation due to active oxygen, preventing skin loss, improving skin barrier function, and preventing damage to the oil balance of the skin during washing.

The low-temperature aging soap of the present invention may have a degree of saponification of 30% to 95%, specifically 40% to 95%, and more specifically 50% to 95%. Within the above range, it is possible to improve the cleaning power and soap properties of the low-temperature aged soap. At this time, the degree of saponification is measured by the method described in the evaluation method of Examples to be described later.

The low-temperature aging soap of the present invention may have a degree of solidification of 30% to 80%, specifically 40% to 80%, and more specifically 50% to 80%. Within the above range, it is possible to improve the cleaning power and feeling of use of the low-temperature aging soap. At this time, the degree of solidification is measured by the method described in the evaluation method of Examples to be described later.

In the low-temperature aging soap of the present invention, the content of glycerin formed by the saponification reaction may be 5% to 50% by weight, specifically 5% to 40% by weight, and more specifically 5% to 30% by weight of the saponification reaction. have. Within the above range, while improving skin moisturization and skin conditioning effect by natural glycerin, it is possible to improve the miscibility of components such as fat-soluble vitamins and fat-soluble minerals derived from all ingredients.

Another embodiment of the present invention relates to a method of manufacturing the above-described low-temperature aging soap. 1 is a sequence diagram illustrating a method of manufacturing a low-temperature aging soap according to an embodiment of the present invention. Referring to Figure 1, the low-temperature aging soap manufacturing method of the present invention comprises the steps of preparing a saponification reactant (S1); Adding bergamot essential oil and natural pigment to the saponification reaction product, followed by stirring to prepare a first mixture (S2); Preparing a second mixture by adding ascorbic acid to the first mixture (S3); Preparing a soap trace by adding tocopherol to the first mixture (S4); Pouring the soap trace into a warm container and solidifying for 18 to 30 hours to form a solid soap (not shown); Cutting and shaping the soap trace to manufacture a solid soap (S5, S6); And aging and drying the solid soap at a low temperature of 25° C. to 30° C. to prepare a final product (S7). The final product may be marketed through a suitable packaging step (S8) as needed.

Through such a manufacturing method, the present invention can produce a low-temperature aged soap capable of reducing the thermal breakdown of skin active ingredients and forming natural glycerin with superior economic efficiency.

In addition, the use of synthetic additives such as a solidifying agent is eliminated through a specific manufacturing method described later, and the soap properties such as foam generation ability and saponification are excellent, and low-temperature aged soap removed by reducing the chlorine component is manufactured with excellent efficiency. can do.

Specifically, in the step (S1) of preparing the saponification reactant, a base oil and an aqueous sodium hydroxide solution preheated to a temperature of 45°C to 50°C are added to a reactor preheated to a temperature of 45°C to 50°C, followed by stirring, Allow the saponification reaction to proceed. When the preheating temperature of each component and the preheating temperature of the reactor are less than 45° C., the saponification reaction does not sufficiently proceed, and when the preheating temperature exceeds 50° C., the active ingredient of the skin may be decomposed at high temperature, It is difficult to keep the trace state.

When the base oil and aqueous sodium hydroxide solution are added to the reactor, a saponification reaction occurs by contact, and the saponification reaction gradually changes in transparency and viscosity while generating reaction heat of the saponification reaction product, thereby changing to a saponification state.

Details of the specific composition, mixing ratio, efficacy, etc. of each of the base oil and sodium hydroxide aqueous solution are the same as described above.

The saponification reaction time may be, for example, 1.5 hours to 2.5 hours. In this case, it is more advantageous to control the balance between the saponification reaction rate and the reaction heat generated.

Specifically, the step (S2) of preparing the first mixture includes 1.5 parts by weight to 2 parts by weight of bergamot essential oil to 100 parts by weight of the saponification reaction product; And 1.5 parts by weight to 2.5 parts by weight of a natural pigment. After adding and stirring to prepare a first mixture.

Specifically, in the step (S3) of preparing the second mixture, 0.4 to 0.5 parts by weight of ascorbic acid is added to the first mixture based on 100 parts by weight of the saponification reactant to prepare a second mixture.

Specifically, in the step of preparing the soap trace (S4), 0.2 parts by weight to 3 parts by weight of tocopherol is added to the second mixture based on 100 parts by weight of the saponification reaction product.

In the step (S4) of preparing the soap trace, the transparency and viscosity of the saponification reactant partially changed to the saponification state in the step (S1) of preparing the saponification reactant are radically changed to form a soap trace. Bergamot essential oil, natural pigment, ascorbic acid and tocopherol are added to the soap trace in the above-described amounts according to each step, thereby preventing thermal destruction of skin active ingredients derived from each component, and gradually formed in the soap trace. It can increase the compatibility of natural glycerin and skin active ingredients.

In addition, by adding components within the above content range to a soap trace whose viscosity is increased and stirring efficiency is lowered, fluidity can be improved, and workability and moldability can be improved.

The specific contents of the bergamot essential oil, natural pigments, ascorbic acid and tocopherol, respectively, for the specific composition, mixing ratio, and efficacy are the same as described above.

Specifically, in the steps of preparing the solid soap (S5, S6), the soap trace is stored for 18 to 30 hours in a warm container maintained at a temperature of 45°C to 50°C, and then cut and molded to prepare the solid soap. To manufacture.

The warming container may be, for example, a soap mold, and the shape and volume of the mold are not particularly limited.

When the constant temperature of the thermal insulation container is less than 45°C, the saponification reaction does not sufficiently proceed, and when the preheating temperature exceeds 50°C, the effective ingredients of the skin active ingredient may be decomposed at high temperature, and to maintain a trace state. It is difficult.

If the storage time in the warm container is less than 18 hours, the degree of saponification and solidification may be insufficient, resulting in poor moldability, and if it exceeds 30 hours, cracks and crushing may occur during cutting and molding, resulting in lower moldability. Can be.

The method of cutting (S5) among the steps of preparing the solid soap is not particularly limited. For example, the soap trace solidified in the mold may be separated from the mold through an extruder, and then cut into a single use weight of 90 g to 110 g after using a cutter.

Among the steps of preparing the solid soap, the method of molding (S6) is not particularly limited. For example, the soap cut to a single use weight as described above may be put into a press molding machine with a mold, and then molded into a shape having excellent feeling of use and aesthetics by applying a certain pressure. The type of molding may be edge cutting, pattern insertion, intaglio and relief molding, and the like, but is not limited thereto.

In an embodiment, the solid soap prepared as described above may be a soap having a width of 5 cm to 6 cm, a width of 3 cm to 4 cm, a thickness of 2 cm to 3 cm, and a weight of 100 g to 120 g, It is not limited thereto. In this case, cutting of the soap can be efficiently performed, and the efficiency of the manufacturing process can be further increased by minimizing a portion to be cut by molding.

Specifically, in the step of preparing the final product (S7), the solid soap is aged for 30 to 35 days at a temperature of 25°C to 30°C and a humidity condition of 35% to 55%. It is dried to produce a final product. Through this, all the remaining free alkali in the low-temperature aging soap is discharged, the moisture content in the soap is controlled through evaporation, and the saponification reaction in the state in which the reaction is not completed continuously proceeds, making it a harder and higher quality soap. To manufacture.

When the storage temperature is less than 25°C, the saponification degree and glycerin formation effect by low-temperature aging may not be sufficiently realized, and when the temperature exceeds 30°C, elution of oil and fat components may occur or skin active ingredients may be excessively reduced. .

When the humidity is less than 35% during the storage, the effect of forming glycerin is not sufficiently realized, and cracks and cracks may occur on the soap surface, and when it exceeds 50%, the soap excessively absorbs moisture and the degree of saponification is reduced. Characteristics may be degraded.

If the number of days during storage is less than 30 days, the saponification degree and glycerin formation effect by low-temperature aging may not be sufficiently realized, the efficiency in the manufacturing process exceeding 35 days may be reduced, and the moisture content may be excessively decreased.

The low-temperature aging soap subjected to the step (S7) of manufacturing the final product may be 30% to 95%, specifically 40% to 95%, and more specifically 50% to 95%. Within the above range, it is possible to improve the cleaning power and soap properties of the low-temperature aged soap.

The low-temperature aging soap subjected to the step (S7) of manufacturing the final product may have a degree of solidification of 30% to 80%, specifically 40% to 80%, and more specifically 50% to 70%. Within the above range, within the above range, it is possible to improve the cleaning power and feeling of use of the low-temperature aged soap.

The low-temperature aging soap subjected to the step (S7) of preparing the final product has a content of glycerin formed by a saponification reaction of 5% to 50% by weight, specifically 5% to 40% by weight, more specifically It may be from 5% to 30% by weight. Within the above range, while improving skin moisturization and skin conditioning effect by natural glycerin, it is possible to improve the miscibility of components such as fat-soluble vitamins and fat-soluble minerals derived from all ingredients.

The final product manufactured through the manufacturing step (S7) of the final product may be marketed through a suitable packaging step (S8) as necessary. In this case, the packaging method is not particularly limited, and may be, for example, wrapping, sealing, package packaging, or the like.

Example

Hereinafter, the present invention will be described in detail through examples and comparative examples. However, these are only provided to explain the present invention in detail, and the scope of the present invention is not limited thereto.

Example 1

Base oil comprising 24% by weight of coconut oil, 12% by weight of palm oil, 8% by weight of sunflower oil, 6.5% by weight of olive oil, 6% by weight of camellia oil, 6% by weight of grapeseed oil, 6% by weight of avocado oil and 5.4% by weight of castor oil After preparation, it was preheated to maintain 50°C.

Sodium hydroxide having a purity of 99% is dissolved in purified water to prepare an aqueous sodium hydroxide solution having a concentration of 30 v/v%, and then preheated to maintain 50°C.

After adding the prepared base oil and sodium hydroxide aqueous solution in a weight ratio of 73.9: 26.1 to a stirrer preheated to maintain 50° C., stirring was performed for 2 hours. As the stirring progressed, the base oil and the aqueous sodium hydroxide solution gradually saponified, thereby forming a saponified soap trace as a reactant.

A total of 19.1 g of natural pigments containing 15 g of bergamot essential oil, kale powder, chlorella powder and flaxseed powder (mixed weight ratio 1:1:1) were added to 1 kg of the soap trace, and then stirred for 20 minutes to achieve agitation degree. And after increasing the uniformity, 0.49 g of ascorbic acid was added and mixed, and then 0.2 g of tocopherol was added to prepare a mixed soap trace.

After pouring the mixed soap trace in the saponified state into the molding mold, the soap was stored for 24 hours in a thermostat maintained at 45°C. After that, the solidified soap trace is pulled out through an extruder, and then dried using a cutter, and cut to 100g according to the standard standard. The cut soap was molded into a shape by applying a certain pressure to a press molding machine with a mold attached to it to prepare a solid soap.

The molded solid soap was aged and dried at low temperature for 30 days in a room maintained at a temperature of 25°C to 30°C and a humidity of 35% to 45%.

Example 2

A soap was prepared in the same manner as in Example 1, except that the mixing ratio of each component was changed as shown in Table 1 and Table 2 below.

Example 3

A soap was prepared in the same manner as in Example 1, except that the mixing ratio of each component was changed as shown in Table 1 and Table 2 below.

Comparative Example 1

Soap was prepared in the same manner as in Example 1, except that the addition of ascorbic acid was omitted.

Comparative Example 2

Soap was prepared in the same manner as in Example 1, except that the saponification reaction temperature was changed to 60°C.

Comparative Example 3

Soap was prepared in the same manner as in Example 1, except that the saponification reaction temperature was changed to 40°C.

Comparative Example 4

In Example 1, in the same method, except that aging and drying for 30 to 35 days at a temperature of 25°C to 30°C and a humidity condition of 35% to 45%, which is the step (S5) of preparing the final product, was omitted. Soap was prepared.

ingredient Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 (a-1) coconut oil 24 16.2 8.5 24 24 24 24 (a-2) palm oil 12 8.1 4.2 12 12 12 12 (a-3) sunflower oil 8 5.4 2.8 8 8 8 8 (a-4) olive oil 6.5 4.4 2.3 6.5 6.5 6.5 6.5 (a-5) Camellia oil 6 4.1 2.1 6 6 6 6 (a-6) grapeseed oil 6 4.1 2.1 6 6 6 6 (a-7) avocado oil 6 4.1 2.1 6 6 6 6 (a-8) castor oil 5.4 3.6 1.9
5.4 5.4 5.4 5.4 (B) aqueous sodium hydroxide solution 26.1 50 74 26.1 26.1 26.1 26.1 total (%) 100 100 100 100 100 100 100

ingredient
Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 (A) + (B) (parts by weight) 100 100 100 100 100 100 100 (A): (B) (weight ratio) 74: 26 50: 50 26: 74 74: 26 74: 26 74: 26 74: 26 Saponification reaction temperature (℃) 50 50 50 50 60 40 50 Bergamot oil (parts by weight) 1.5 1.5 1.5 1.5 1.5 1.5 1.5 Natural pigment (parts by weight) 1.91 1.91 1.91 1.91 1.91 1.91 1.91 Ascorbic acid (parts by weight) 0.49 0.49 0.49 0 0.49 0.49 0.49 Tocopherol (parts by weight) 0.2 1.7 0.2 0.2 0.2 0.2 0.2 Low temperature aging ○ ○ ○ ○ ○ ○ × In Table 2, component (A) refers to a base oil, and (B) refers to an aqueous sodium hydroxide solution.

<Material property evaluation>

For the soaps prepared in the above-described Examples and Comparative Examples, physical properties were evaluated in the following manner. Each result is shown in Table 3 below.

(1) Degree of saponification: The degree of saponification was measured for 100 g of each soap specimen prepared in Examples and Comparative Examples.

(2) degree of solidification:

For each 100 g of soap specimen prepared under the same pressure, the degree of solidification was determined by dropping iron beads having a diameter of 16 mm and a weight of 16.5 g at the same height of 70 cm using a free fall test apparatus.

Specifically, if the specimen is damaged due to the fall of the weight or the depth of the groove dug by the fall of the weight is more than 10mm, the degree of solidification is evaluated as "poor", and if it is 5 mm or more and less than 10mm, the degree of solidification is "good. ", and if it is less than 5 mm, the degree of solidification was evaluated as "excellent", and the results are shown in Table 3.

(3) Chlorine removal ability:

A chlorine solution was prepared in which 1 ml of a chlorine reagent (O-tulidine) was added to 200 ml of normal tap water containing a chlorine component. It can be seen visually that tap water changes its color to pale yellow due to the chlorine reagent.

After collecting 10 g as a specimen from 100 g of each of the soaps prepared in Examples and Comparative Examples, it was added to the chlorine solution and stirred 5 times, and then the color change of water was visually observed for 30 minutes.

When the color of tap water containing a chlorine reagent changes from pale yellow to the original transparent color within 1 minute after dissolving the soap sample, the chlorine removal ability is evaluated as "excellent", and the color changes within 20 minutes or more than 1 minute It was evaluated as "good", and if the color does not change even after 30 minutes, it was evaluated as "defective", and the results are shown in Table 3. In addition, the results for Example 1 and Comparative Example 1 were photographed and displayed in FIG. 2. In FIG. 2, (a) shows before the chlorine removal test, and (b) shows after the chlorine removal test.

(4) Measurement of skin moisture level:

After collecting 5 g as a specimen from 100 g of each of the soaps prepared in Examples and Comparative Examples, the face was washed by rubbing it on the skin with water for 20 seconds. The skin moisture level before and after cleansing was measured using a skin moisture meter (manufacturer: Ibion product name: digital moisture checker) at a temperature between 5°C and 40°C and a relative humidity of 70% or less, and then according to Equation 1 below. It showed the improvement rate of skin moisture level.

<Equation 1>

Skin moisture improvement rate (%) = {(W2 -W1) / W1} X 100

In Equation 1, W1 is the skin moisture level measured before cleansing, and W2 is the skin moisture level measured after cleansing.

Property evaluation Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Saponification degree (%) 100 100 100 100 80 60 70 Degree of solidification Great Great Great Good Bad Bad Bad Chlorine removal ability Great Great Great Bad Good Good Good Skin moisture improvement rate (%) 81.6 51.3 40.3 80.3 58.4 57.2 87.6

As can be seen from Table 3, the low-temperature aging soap prepared in Examples 1 to 3 of the present invention has high saponification degree, excellent solidification degree, excellent chlorine removal ability in tap water, and skin moisture improvement rate. It was confirmed that it was high. In addition, since the degree of saponification and the content of natural glycerin in the soap are proportional, it can be seen that the amount of natural glycerin produced in the low-temperature aged soaps prepared in Examples 1 to 3 of the present invention is excellent.

On the other hand, in the case of the soap prepared in Comparative Examples 1 to 3, the degree of saponification is not sufficient, in particular, in the case of Comparative Example 1, the ability to remove chlorine in tap water cannot be implemented, and in the case of Comparative Examples 2 to 3, the degree of solidification is not sufficiently implemented. Confirmed.

S1: preparing a saponification reaction product
S2: Step of preparing a soap trace
S3, S4: Step of preparing a solid soap
S5: Step of manufacturing the final product
S6: packing step

Claims (10)

100 parts by weight of a saponification reaction product of a base oil and an aqueous sodium hydroxide solution;
1.5 parts by weight to 2 parts by weight of bergamot essential oil;
1.5 parts by weight to 2.5 parts by weight of natural pigments including kale powder, chlorella powder and flaxseed powder;
0.4 to 0.5 parts by weight of ascorbic acid; And
0.2 parts by weight to 3 parts by weight of tocopherol;
Including,
The base oil includes coconut oil, palm oil, sunflower oil, olive oil, camellia oil, grapeseed oil, avocado oil and castor oil,
The weight ratio of the base oil and the sodium hydroxide aqueous solution before the reaction of the saponification reactant is 10:90 to 90:10,
The sodium hydroxide aqueous solution has a concentration of 30 v/v% to 50 v/v%,
The base oil and the sodium hydroxide aqueous solution preheated to a temperature of 45°C to 50°C, respectively, are added to a reactor preheated to a temperature of 45°C to 50°C, and then stirred to prepare the saponification reaction product,
The bergamot essential oil, natural pigment, ascorbic acid, and tocopherol are added to the saponification reaction and solidified to form a solid soap,
A low-temperature aging natural soap prepared by aging and drying the solid soap at a temperature of 25° C. to 30° C. and a humidity condition of 35% to 45% for 30 to 35 days.
delete delete delete The method of claim 1,
The base oil is
5% to 30% by weight of coconut oil;
5% to 20% by weight palm oil;
5% to 20% by weight of sunflower oil;
5% to 20% by weight olive oil;
Camellia oil 5% to 20% by weight;
5% to 20% by weight of grapeseed oil;
5% to 20% by weight of avocado oil; And
5% to 15% by weight castor oil;
Low temperature aging natural soap comprising a.
Adding the base oil and sodium hydroxide aqueous solution preheated to a temperature of 45° C. to 50° C., respectively, into a reactor preheated to a temperature of 45° C. to 50° C., followed by stirring to prepare a saponification reaction product;
100 parts by weight of the saponification reaction product; 1.5 parts by weight to 2 parts by weight of bergamot essential oil; 1.5 parts by weight to 2.5 parts by weight of natural pigments including kale powder, chlorella powder and flaxseed powder; Adding to prepare a first mixture;
Preparing a second mixture by adding 0.4 parts by weight to 0.5 parts by weight of ascorbic acid based on 100 parts by weight of a saponification reaction product to the first mixture;
Preparing a soap trace by adding 0.2 parts by weight to 3 parts by weight of tocopherol to the second mixture;
Solidifying the soap trace in a warm container maintained at a temperature of 45° C. to 50° C. for 18 to 30 hours to form a solid soap; And
Aging and drying the solid soap at a temperature of 25° C. to 30° C. and a humidity condition of 35% to 45% for 30 to 35 days;
Including,
The base oil includes coconut oil, palm oil, sunflower oil, olive oil, camellia oil, grapeseed oil, avocado oil and castor oil,
The weight ratio of the base oil and the sodium hydroxide aqueous solution before the reaction of the saponification reactant is 10:90 to 90:10,
The sodium hydroxide aqueous solution has a concentration of 30 v/v% to 50 v/v%, low-temperature aging natural soap manufacturing method.
delete delete delete The method of claim 6,
The base oil is
5% to 30% by weight of coconut oil;
5% to 20% by weight palm oil;
5% to 20% by weight of sunflower oil;
5% to 20% by weight olive oil;
Camellia oil 5% to 20% by weight;
5% to 20% by weight of grapeseed oil;
5% to 20% by weight of avocado oil; And
5% to 15% by weight castor oil;
Low-temperature aging natural soap manufacturing method comprising a.

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