KR20230099962A - Structure for washing hair - Google Patents

Abstract

It relates to a structure for washing hair of the present invention, and more specifically, it is easy to clean and manage hair by separately disposing two compositions having different main components in one structure, and it is easily brittle or broken even by external factors such as moisture and external force. It is a hair washing structure that increases the feeling of use without losing weight.
A hair washing structure according to the present invention includes a core part containing a first surfactant as a main component; and a sheath portion covering a surface of the core portion and containing a second surfactant, wherein a hardness of the sheath portion is greater than that of the core portion.

Description

Structure for washing hair {Structure for washing hair}

The present invention relates to a hair washing structure, and more particularly, to a hair washing structure that is not easily brittle or broken even by external factors such as moisture and external force, and is easy to clean and manage hair.

Hair is prone to contamination due to oil, waste, and dust. Accordingly, since ancient times, much attention has been focused on cleaning and protecting hair for cleanliness and beauty, and various hair-related products such as shampoo, rinse (or conditioner) and hair treatment have been developed.

Most shampoos are intended to wash away sweat, sebum, dust, etc. attached to the hair to keep the hair clean, and have high cleaning power including anionic surfactants and exhibit alkalinity. Therefore, as the gloss of the hair rather decreases and the hair becomes stiff after shampooing, generally, after using the shampoo, the hair is washed again using a rinse.

Rinse is intended to soften and give shine to stiff hair after shampooing, contains a cationic surfactant and exhibits weak acidity. Accordingly, it is possible to neutralize the alkaline substances remaining on the hair after shampooing, and to soften and give shine to the hair.

Hair treatment is a nutrient that supplies nutrients to the hair and scalp, and may appropriately include nutritional ingredients according to various functional conditions such as dandruff, hair loss, and damaged hair.

However, most of these hair-related products are used in a plastic container or in a vinyl pouch. Worldwide, 552 million plastic shampoo containers are discarded each year.

As the global movement to reduce the use of plastic products becomes stronger, development of various products is required to reduce the plastic containers used for hair-related products that are used daily.

Accordingly, Korean Patent Publication No. 10-2020-0132096 entitled 'Solid Shampoo Composition Containing a High Content of Isethionate Surfactant' and Korean Patent Publication No. 10-2021-0028970 entitled 'Natural Shampoo Composition Containing Coconut Extract Surfactant' As disclosed in the 'shampoo bar and manufacturing method thereof', a shampoo manufactured in a solid state and requiring no separate plastic container has been developed.

However, conventional solid shampoos such as those in a bathroom where humidity is relatively high compared to other rooms, or when in contact with moisture, are easily brittle and broken, so they have a poor feeling of use and do not sufficiently demonstrate detergency.

In addition, as it contains an anionic surfactant with relatively high detergency, there is an inconvenience that a rinse or the like must be used separately after use. Thus, even if various functional substances for hair or scalp are added, the functional substances are easily deteriorated, and there is a disadvantage in that the functionality is not sufficiently exhibited.

(Patent Document 1): Republic of Korea Patent Publication No. 10-2020-0132096 (Patent Document 1): Republic of Korea Patent Publication No. 10-2021-0028970

An object of the present invention is to provide a structure for washing hair that is easy to clean and manage hair by separately disposing two compositions having different main components in one structure.

In addition, an object of the present invention is to provide a hair washing structure that does not easily become brittle or broken even by external factors such as moisture and external force, and thus increases the feeling of use.

A hair washing structure according to the present invention includes a core part containing a first surfactant as a main component; and a sheath portion covering a surface of the core portion and containing a second surfactant, wherein a hardness of the sheath portion is greater than that of the core portion.

In the hair washing structure according to an embodiment of the present invention, the hardness of the core part and the sheath part measured under the following measurement conditions may satisfy Equation 1 below.

[Measuring conditions]

Using a durometer equipped with a probe-type adapter, pressurize at a rate of 20 mm/min from one surface exposed to the outside to a depth of 10 mm, measure the maximum load value, and measure at least n (n is a natural number of 3 or more) times or more

[Equation 1]

1.1 ≤ Ds/Dc ≤ 2.5

(In Equation 1, Dc means the average hardness value of the core part, and Ds means the average hardness value of the sheath part.)

In the hair washing structure according to an embodiment of the present invention, the water absorption rate of the core part and the sheath part calculated through Equation 1 below may satisfy Equation 2 below.

[Calculation 1]

Water absorption (%) = ((W2 - W1) / W1) ×100

(In the above calculation formula 1, W1 is the initial weight, and W2 is the weight after being immersed in distilled water at room temperature (25 ± 5 ° C. for 2 hours and dried at room temperature for 1 hour)

[Equation 2]

As < Ac

0.05 ≤ As/Ac ≤ 0.7

(In Equation 2, Ac means the water absorption value of the core part, and As means the water absorption value of the sheath part.)

In the hair washing structure according to an embodiment of the present invention, the second surfactant of the sheath part includes at least one selected from the group consisting of sodium cocoyl isethionate, sodium coco sulfate and sodium lauroyl glutamate can do.

In the hair washing structure according to an embodiment of the present invention, the core part may further include a functional material capable of supplying nutrients to the hair or scalp.

In the hair washing structure according to an embodiment of the present invention, a volume occupied by the core portion may be 10 to 40% of the total volume of the structure.

In the hair washing structure according to an embodiment of the present invention, microcapsules embedded in the core portion and having phase transition characteristics at a temperature in the range of 28 to 38 ° C. include a material capable of phase transition can include more.

In the hair washing structure according to an embodiment of the present invention, the microcapsule may further contain a functional material including an active ingredient for preventing and treating hair loss, dandruff, seborrheic scalp, and psoriasis.

In the hair washing structure according to an embodiment of the present invention, the microcapsule may further include a dye composition.

The hair washing structure according to the present invention has a core-sheath dual structure, and includes compositions having different main components in each of the core and sheath, so that the user can receive the effects of the different compositions at the same time, and can wash and manage hair can be very easy.

In addition, the hair washing structure according to the present invention has a double structure, and as the inside is protected from external factors such as moisture and external force, it is not easily brittle or broken, and the user's feeling of use can be further improved.

In addition, the hair washing structure according to the present invention does not easily expose the functional material contained therein to the outside, so that the functional material can be more effectively supplied to the hair or scalp.

1 is a perspective view of a structure for washing hair according to an embodiment of the present invention.

Unless otherwise defined, the technical and scientific terms used in this specification have meanings commonly understood by those of ordinary skill in the art to which this invention belongs, and the gist of the present invention in the following description and accompanying drawings Descriptions of known functions and configurations that may unnecessarily obscure are omitted.

In addition, the singular form used in this specification may be intended to include the plural form as well unless otherwise indicated in the context.

In addition, units used in this specification without special mention are based on weight, and as an example, the unit of % or ratio means weight% or weight ratio, and unless otherwise defined, weight% is any one component of the entire composition It means the weight percent occupied in the composition.

Further, as used herein, numerical ranges include lower and upper limits and all values within that range, increments logically derived from the shape and breadth of the defined range, all values defined therebetween, and the upper limit of the numerical range defined in a different form. and all possible combinations of lower bounds. Unless otherwise specifically defined in the specification of the present invention, values outside the numerical range that may occur due to experimental errors or rounding of values are also included in the defined numerical range.

The term 'comprising' in the present specification is an open description having the same meaning as expressions such as 'includes', 'includes', 'has' or 'characterized by', elements not additionally listed, No materials or processes are excluded.

Conventionally, as hair washing and protection (management) products such as shampoo, rinse, and hair treatment are contained in plastic containers, environmental problems have emerged.

Therefore, a solid shampoo that can be used without a separate container has been developed, but commercially available solid shampoos are easily brittle and broken when in contact with moisture or in places with relatively high humidity compared to other rooms such as bathrooms. There is a disadvantage that the feeling of use is poor and the cleaning power is not sufficiently exhibited.

In addition, as it contains an anionic surfactant with relatively high detergency, there is an inconvenience that a rinse or the like must be used separately after use. In addition, even if various functional materials for hair or scalp are added, there is a disadvantage in that the functional materials are easily deteriorated and do not sufficiently exhibit functionality.

A hair washing structure according to the present invention includes a core portion including a first surfactant; A sheath portion surrounding the surface of the core portion and containing a second surfactant, characterized in that the hardness of the sheath portion is greater than that of the core portion. Such a structure has a dual core-sheath structure, and as the inside is protected from external factors such as moisture and external force, it is not easily brittle or broken, and it is easy to clean and manage hair. In addition, the functional material contained inside is not easily exposed to the outside, so that the functional material can be more effectively supplied to the hair or scalp.

In the present invention, 'not brittle or broken' means that the degree of shape deformation is small when it comes into contact with water, and can be expressed as hardness, and the higher the hardness, the less easily brittle or broken.

1 shows a structure for washing hair according to an embodiment of the present invention.

Referring to FIG. 1 , a structure for washing hair according to the present invention includes a core portion and a sheath portion provided to surround the core portion. That is, the structure for washing hair may be of the core-sheath type, and may have a structure in which the core portion is protected by the sheath portion.

As described above, since the core portion is protected by the sheath portion, it is not easily weakened by external factors such as moisture, and thus the functionality can be sufficiently exhibited. Specifically, the hardness of the core part and the sheath part measured under the following measurement conditions may satisfy Equation 1 below.

[Measuring conditions]

Using a durometer equipped with a probe-type adapter, pressurize at a rate of 20 mm/min from one surface exposed to the outside to a depth of 10 mm, measure the maximum load value, and measure at least n (n is a natural number of 3 or more) times or more

[Equation 1]

1.1 ≤ Ds/Dc ≤ 2.5

(In Equation 1, Dc means the average hardness value of the core part, and Ds means the average hardness value of the sheath part.)

That is, in the hardness of the core part and the sheath part, as the hardness of the sheath part is higher than that of the core part, the core part will not be easily brittle or broken by the sheath part having a large exposed area to the outside in a high humidity atmosphere or when in contact with moisture. can Therefore, when the user is washing their hair, it provides an excellent feeling of use, and when the core part includes a material having excellent functionality for the hair or scalp, it is possible to supply nutrients to the hair and scalp without alteration by external factors.

Also, as described above, Ds/Dc may be 1.1 to 2.5, specifically, 1.5 to 2. Within this range, despite the difference in hardness between the sheath and the core, when washing hair in water at a temperature of 35 to 40° C., the core can dissolve at an appropriate rate after dissolving the sheath.

In this case, the first and second surfactants may be anionic, cationic, nonionic or amphoteric surfactants, and the core part and the sheath part may have different water solubilities as they contain the first and second surfactants, respectively. .

In the present invention, 'water solubility' can be expressed as the water absorbency of the structure, and the higher the water absorbency, the easier it is to dissolve in water and, despite its high hardness, is easily brittle. In addition, even if made of the same raw material, when the hardness is higher, the water absorption may be lower than the higher hardness.

As described above, as the core part and the sheath part have higher hardness, the water absorption rate of the sheath part may be lower than that of the core part.

Specifically, the structure for washing hair, wherein the water absorbency of the core part and the sheath part, calculated through Equation 1, satisfies Equation 2 below.

[Calculation 1]

Water absorption (%) = ((W2 - W1) / W1) ×100

(In the above calculation formula 1, W1 is the initial weight, and W2 is the weight after being immersed in distilled water at room temperature (25 ± 5 ° C. for 2 hours and dried at room temperature for 1 hour)

[Equation 2]

As < Ac

0.05 ≤ As/Ac ≤ 0.7

(In Equation 2, Ac means the water absorption value of the core part, and As means the water absorption value of the sheath part.)

The sheath part and the core part satisfying the moisture absorption rate may not be easily softened or broken by the sheath part having a large exposed area to the outside in a humid atmosphere or when in contact with moisture, but when the user is washing his hair, the sheath part The dissolution rate of the part and the core part can be appropriately adjusted, so that the hair can be easily washed.

Depending on the water absorption rate and hardness of the core and sheath parts, the size of the volume occupied by the core part and the sheath part relative to the total volume of the structure may be appropriately adjusted. Specifically, with respect to the total volume of the structure, the volume occupied by the core part may be 10 to 40%, more specifically, 20 to 35%. Within the above range, the core portion may be more stably protected by the sheath portion.

As described above, the core portion includes a first surfactant, the sheath portion includes a second surfactant, and the first surfactant and the second surfactant are selected from among anionic, cationic, nonionic, and amphoteric surfactants, respectively. It may be one or more selected ones. The first surfactant and the second surfactant may be the same or different, but if they are the same, the amounts contained in the core part and the sheath part may be differently added. For example, when the main component of the core part is a cationic surfactant, the main component of the sheath part may also be the same cationic surfactant, but the amount of cationic surfactant contained in the core part compared to the cationic surfactant contained in the sheath part It is less, and more functional substances such as conditioning agents may be added.

Alternatively, the main component of the sheath portion may be an anionic surfactant, but the main component of the core portion may be a cationic surfactant, and the main components of the core portion and the sheath portion may contain the same surfactant.

However, when the first surfactant and the second surfactant each contain a cationic surfactant and an anionic surfactant, since the reaction may occur at a certain concentration or higher, the cationic surfactant and the anionic surfactant It may be separately included in each of the sheath part and the core part.

That is, as a non-limiting example, the core portion may be used as a shampoo and the sheath portion may be used as a rinse. Advantageously, as most users use rinse after shampooing, despite the relatively high hardness due to the relatively large area exposed to the outside, when washing the hair, the sheath part that dissolves first can be used as shampoo and the core part that dissolves afterwards can be used as rinse there is. Alternatively, it goes without saying that a hair treatment ingredient other than rinse may be included in the core part.

Anionic, cationic, nonionic and amphoteric surfactants are not limited as long as they are conventionally included in products used for washing and care (protection) of hair.

Specifically, the anionic surfactant is sodium cocoyl isethionate, sodium lauroyl glutamate, sodium coco sulfate, and sodium lauryl sulfoacetate. etc.

The cationic surfactant may be behentrimonium methosulfate and guar chloride.

The nonionic surfactant may be decyl glucoside, lauryl glucoside, and coco glucoside.

Amphoteric surfactants include Lauramidopropyl Betaine, Cocamidopropyl Betaine, Lauryl Betaine, Coco Alkyldimethyl Betaine, Coco Betaine ( Cocamidopropyl Betaine) and disodium cocoamphodiacetate.

However, as described above, since the hardness of the sheath portion is higher than that of the core portion, it is preferable to use a surfactant having relatively high hardness in the sheath portion during solidification.

As a specific example, when the cis part, that is, the second surfactant is an anionic surfactant, the anionic surfactant of the cis part is sodium cocoyl isethionate (SCI) or sodium coco sulfate (SCS) And sodium lauroyl glutamate (Sodium Lauroyl Glutamate) may include any one or more selected from the group consisting of.

On the other hand, when the core part includes an anionic surfactant as a main component, the anionic surfactant of the core part may include sodium lauroyl glutamate (SLG).

That is, any surfactant that can satisfy the above-described hardness among conventional surfactants may be appropriately contained in the core part and the sheath part.

Such surfactants may be added in liquid or powder form, kneaded, and then solidified to form a structure. At this time, the weight ratio of the liquid:powdery surfactant may be appropriately adjusted to satisfy the above-described hardness.

In addition, as the core part and the sheath part, any component of a product conventionally used for washing and managing (protecting) hair may be appropriately used. Specifically, the core part and the sheath part may further include commonly used conditioning agents, pearl agents, preservatives, thickeners and viscosity modifiers, pH adjusters, fragrances, dyes, metal ion sequestering agents, silicones or oils.

For example, as conditioning agents, collagen, elastin, panthenol, silk amino acid, biotin, keratin, allantoin, niacinamide, etc. may be used, and as preservatives, methyl paraoxybenzoate, methylchloroisothiazolinone and methyliso A mixture of thiazolinone may be used, and hydroxypropylmethylcellulose, hydroxymethylcellulose, sodium chloride, ammonium chloride, propylene glycol, hexylene glycol, and the like may be used as thickeners and viscosity modifiers. As the pH adjusting agent, citric acid, sodium hydroxide, and triethanolamine may be used, and as the dye, a water-soluble tar colorant may be used, but is not limited thereto.

Preferably, the core part may further include a functional material capable of supplying nutrients to the hair or scalp. The functional material is not limited as long as it is conventionally known to be able to supply nutrients to the hair or scalp. Specifically, it may be centella asiatica leaf extract or morgan oil. The structure including such a core portion is not exposed to external factors and can be prevented from decay or deterioration, as functional materials containing natural ingredients such as relatively natural extracts and natural oils are contained in the core portion. Thus, even when stored for a long time, when the user is washing his or her hair, highly nutritious ingredients can be provided to the hair or scalp.

In addition, the core part may further include essential oil (highly concentrated essential oil extracted from a plant having a fragrance) exhibiting fragrance. Essential oils include, for example, bergamot, neroli, jasmine, ylang ylang, rosewood, petitgrain, grapefruit, sweet orange ( sweet orange), lemon, Frankincense, lavender, lime, geranium, lemongrass, cedarwood atlantica, rosemary , peppermint, ginger, juniperberry, marjoram, tea tree, eucalyptus, etc. may be exemplified, but are not limited thereto.

In a structure including such a core part, as the scent of essential oil, which is relatively easily volatilized, is contained in the core part and is not easily volatilized to the outside, the scent can be stored until used to provide a fragrant scent to the user's hair. there is.

In one embodiment of the present invention, the structure for hair washing is embedded in the core, and further includes a material capable of phase transition at a temperature in the range of 28 to 38 ° C. can do.

The phase transition property may mean melting from a solid phase to a liquid phase, and a structure further including such microcapsules may more stably provide functional materials to the hair and scalp. Specifically, as the microcapsule is built into the core and undergoes a phase transition at a temperature similar to body temperature, the functional material contained in the microcapsule is not exposed to the outside until the user uses it, further preventing deterioration and decay of the functional material. Thus, the functional material can be more stably supplied to the hair and scalp.

In detail, the phase change material is not limited as long as it has the above-described phase transition temperature, but advantageously n-octacosan, n-heptacosan, n-hexacosan, n-pentacosan, n-tetracosan, n-tricosan , n-Docosan, n-Heneicosan, n-Eicosan, n-nonadecane, n-octadecane, n-hexadecane, n-pentadecane, n-tetradecane, n-tridecane and derivatives thereof Or it may be one or a mixture selected from complexes.

Such a microcapsul may further include various functional materials conventionally used for hair and scalp care. Specifically, it may include functional substances including active ingredients for preventing and treating hair loss, dandruff, seborrheic scalp, and psoriasis. As a specific example, functional substances include minoxidil, dexpanthenol, climbazole, zinc pyrithione, salicylic acid, piroctone olamine, biotin It may include, but is not limited to, any one or more selected from the group consisting of (Biotin) and L-menthol (L-menthol), and may include what is commonly known as a functional substance beneficial to hair and scalp.

In addition, the microcapsule may contain a dye capable of imparting dyeability to hair. As for the dye, all conventional dyes known to have hair dyeing ability can be applied. As a non-limiting example, the dye may be p-phenylenediamine.

As a preferred example, the microcapsule may further include a scalp anti-itch composition including a peptide composed of a complex compound of three amino acids and metal ions. The scalp itching composition can chemically protect the scalp more healthily. The scalp itching composition is not limited as long as it is conventionally used as a scalp itching composition, but a specific example may be copper tripeptide-1. Such a scalp itching composition can relieve scalp itchiness and be stably stored in the above-described microcapsule.

As these microcapsules are provided in the form of particles before melting at body temperature, when the user is washing their hair, they can physically stimulate the scalp and massage the scalp, and at the same time, the above-mentioned functional substances, dyes, and scalp itching prevention compositions to further enhance the efficacy of

(Example 1)

At room temperature (25 ± 2 ° C., after kneading the composition for the core part and the composition for the sheath part that satisfy the ingredients in Table 1 below, respectively, the raw materials are put into a double circular frame, and as shown in FIG. 1, the total diameter A structure for washing hair having a size of 6.5 cm and a thickness of 2.5 cm was prepared.

(Example 2)

In Example 1,

A structure for washing hair was prepared in the same manner as in Example 1, except that microcapsules containing n-nonadecane (phase transition temperature: 32.1 ° C. and copper tripeptide-1) were further included in the composition for the core part and kneaded.

(Comparative Example 1)

A composition for washing hair having the same size as in Example 1 was prepared by kneading a composition satisfying the ingredients in Table 1 below.

raw material name Example comparative example Core part (w%) Sheath (w%) All-in-one (w%) sodium cocoyl isethionate 65.0 75.0 65.0 Sodium Cocoyl Apple Amino Acid 7.0 7.0 7.0 Stearic Acid 3.0 - 3.0 brewer's yeast powder 3.0 - 3.0 Kelp Powder 3.0 - 3.0 glycerin 3.0 3.0 3.0 keratin 2.0 0.8 1.0 honey extract 1.0 0.5 1.0 centella asiatica extract 1.0 0.5 1.0 camellia oil 1.0 2.0 2.0 Spices 2.0 1.0 1.0 Purified water to 100 to 100 to 100

[Structural property test]

1) Hardness measurement

Examples and Comparative Examples The hardness of the hair washing structure was measured using a hardness meter (FudohRheo Meter). The central part of the transparent soap was applied at a rate of 20 mm/min to a depth of 10 mm using a probe-type adapter with a pointed end, and the maximum load value was measured. After repeating 5 times, the average value was calculated. The results are shown in Table 2.

2) Measurement of water absorption rate

Examples and Comparative Examples After weighing the weight (W1) of the hair washing structure, insert it into a pin and immerse it in a constant temperature water bath at 25 ℃ for 2 hours, then take it out and dry it at room temperature for 1 hour. After absorbing the weight (W2), weigh it. So, the absorbance was calculated by the above formula 2. The results are shown in Table 2.

[Calculation 2]

Absorbance (%) = (W2 - W1 ) / W1 ×100

3) Sensory measurement

Sensory evaluation was conducted on the above Examples and Comparative Examples. The panel selected 20 adult men and women who had undergone an appropriate training process and had them evaluate the overall preference by the following 5-point scale method when washing their hair with the hair washing structure prepared in Examples and Comparative Examples. The results are shown in Table 3 below.

Properties Example 1 Comparative Example 1 core part sheath Hardness (Dyne) 1.32 2.3 1.2 Absorbance (%) 3.4 1.4 3.5

Properties Example 1 Example 2 Comparative Example 1 When used, the texture of the structure 4.1 4.2 3.1 fragrance after use 4.1 4.3 3.5 Condition of hair and scalp after use 4.5 4.9 3.7

Referring to the table, it can be seen that the examples of the present invention do not easily break down when used, have excellent usability, generate abundant foam, and emit a very good fragrance after washing the hair. Even though I only washed my hair once with the structure, my hair was shiny and soft. In particular, in the case of Example 2, it received a very good sensory evaluation by giving a refreshing feeling to the scalp. On the other hand, in the case of the comparative example, when it comes into contact with water, it is easily washed away by water before foam is formed, and the hair is not completely washed, and the hair condition is stiff after use.

As described above, the present invention has been described by specific details and limited embodiments and drawings, but this is only provided to help a more general understanding of the present invention, the present invention is not limited to the above embodiments, and the present invention Those skilled in the art can make various modifications and variations from these descriptions.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and it will be said that not only the claims to be described later, but also all modifications equivalent or equivalent to these claims belong to the scope of the present invention. .

1: Hair washing structure
10: core part
30: sheath

Claims (9)

a core portion containing a first surfactant as a main component; and
A sheath part surrounding the surface of the core part and containing a second surfactant,
The structure for washing hair, wherein the hardness of the sheath part is greater than the hardness of the core part.
According to claim 1,
A structure for washing hair, wherein the hardness of the core part and the sheath part, measured under the following measurement conditions, satisfies Equation 1 below.
[Measuring conditions]
Using a durometer equipped with a probe-type adapter, pressurize at a rate of 20 mm/min from one surface exposed to the outside to a depth of 10 mm, measure the maximum load value, and measure at least n (n is a natural number of 3 or more) times or more
[Equation 1]
1.1 ≤ Ds/Dc ≤ 2.5
(In Equation 1, Dc means the average hardness value of the core part, and Ds means the average hardness value of the sheath part.)
According to claim 1,
The water absorption rate of the core part and the sheath part, calculated through the following formula 1, satisfies the following formula 2, a structure for washing hair.
[Calculation 1]
Water absorption (%) = ((W2 - W1 ) / W1) ×100
(In the above calculation formula 1, W1 is the initial weight, and W2 is the weight after being immersed in distilled water at room temperature (25 ± 5 ° C. for 2 hours and dried at room temperature for 1 hour)
[Equation 2]
As < Ac
0.05 ≤ As/Ac ≤ 0.7
(In Equation 2, Ac means the water absorption value of the core part, and As means the water absorption value of the sheath part.)
According to claim 1,
The second surfactant of the sheath part contains at least one selected from the group consisting of sodium cocoyl isethionate, sodium coco sulfate and sodium lauroyl glutamate, a structure for washing hair
According to claim 1,
The core part further comprises a functional material capable of supplying nutrients to the hair or scalp, a structure for washing hair.
According to claim 1,
With respect to the total volume of the structure, the volume occupied by the core portion is 10 to 40%, the structure for washing hair.
According to claim 1,
The structure for washing hair, which is embedded in the core part, and further comprises microcapsules having phase transition characteristics at a temperature in the range of 28 to 38 ° C, including a material capable of phase transition at a temperature in the range.
According to claim 7,
The microcapsule is a structure for hair washing, further comprising a functional material including an active ingredient for preventing and treating hair loss, dandruff, seborrheic scalp, and psoriasis.
According to claim 7,
The microcapsule further comprises a dye composition, hair washing structure.

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