KR20150062993A - Hair cosmetic composition having a lamellar liquid crystal structure by using sorbitan-based surfactants - Google Patents

Abstract

The present invention relates to a hair cosmetic composition which increases persistency of hair softness, and more specifically, to a hair cosmetic composition which is easily adsorbed and increases persistency of hair softness by using sorbitan-based surfactants and forming a lamellar liquid crystal structure.

Description

[0001] The present invention relates to a hair cosmetic composition having a lamellar liquid crystal structure using a sorbitan-based surfactant,

More particularly, the present invention relates to a cosmetic composition for hair which has enhanced sustained hair softness, and more particularly, to a cosmetic composition for hair which has a lamellar liquid crystal structure formed using a sorbitan-based surfactant, To a cosmetic composition.

In order to make the hair more smooth, existing hair products have applied silicone oil which has excellent spreadability to the hair. However, since damaged hair is in a state of charge, non-polar materials such as silicone are not well adsorbed to damaged hair, so that satisfactory performance in imparting desired characteristics to hair has not been achieved.

On the other hand, in the field of cosmetics, it is known that when a composition for forming a multilayered lamellar structure is prepared and used, such a composition plays an important role in skin moisturizing and barrier functions. This is a type of emulsion of a valve structure composed of phospholipids, which is due to the structural characteristics of the lamellar structure in which the oil layer and the water-receiving layer are stacked in turn.

When the liquid crystal phase is formed, the viscosity of the emulsified particles is increased and structurally stable. Thus, the lamellar structure formed in this way acts as a barrier having high moisture resistance due to its lamellar structure characteristic as compared with general O / W and W / O structures.

Usually, the emulsion structure is an O / W type in which the trauma is water, and when the external moisture is evaporated, the emulsion becomes unbalanced and its function is significantly reduced. In addition, the W / O image is suitable for solving this problem, but it has a disadvantage that the feeling of use is poor. On the other hand, the lamellar structure has a multi-layer structure of the oil layer and the water-receiving layer and has a good structure to solve all of them.

Japanese Laid-Open Patent Application No. 2012-0012840

Accordingly, the present inventors have made it possible to provide a cosmetic composition for hair which is improved in adsorption on the surface of hair by using a substance having a lamellar liquid crystal structure, and it has been found that this can be achieved by using a specific surfactant, .

Accordingly, it is an object of the present invention to provide a cosmetic composition for hair which has a lamellar liquid crystal structure to improve the attracting power to hair by improving the wettability to hair, and also increasing the sustained power imparted to hair.

In order to achieve the above object, And a liquid crystal formed by using a surfactant of a sorbitan series.

The cosmetic composition for hair of the present invention improves the attraction force to the hair, so that the softness of the hair can be maintained for a long time.

Fig. 1 shows a polarizing microscope photograph of a case of using a sorbitan-based surfactant (Example 3) (the photograph of the lower end was observed using polarized light).
Fig. 2 shows a polarizing microscope photograph of the case where a sorbitan-based surfactant was not used (Comparative Example 2) (the photograph of the lower end was observed using polarized light).
Fig. 3 shows a polarizing microscope photograph of the case where a sorbitan-based surfactant was not used (Comparative Example 4) (the photograph of the lower end was observed using polarized light).
Fig. 4 shows a polarizing microscope photograph of the case where a sorbitan-based surfactant was not used (Comparative Example 5) (the photograph of the lower end was observed using polarized light).
5 is a photograph showing the adsorption power of the composition according to the present invention (Example 3) against hair.
6 shows the difference in contact angle between the normal and the damaged hair.
Figure 7 shows changes in the contact angle with the number of rinsing after application of the composition according to the present invention (Example 3) to the hair.

The present invention relates to a process for the production of a high aliphatic alcohol; And a surfactant of a sorbitan series, and the whole structure forms a lamellar liquid crystal structure by self-association of a surfactant to be used.

Hereinafter, the present invention will be described in more detail.

Damaged hair is charged differently from normal hair, so polar materials like pulling moisture are attracted, while non-polar materials such as silicone do not stick well.

However, the composition for hair provided in the present invention has a lamellar liquid crystal structure. Due to the structural characteristics thereof, the hydrophobic polymer membrane promotes the adsorption to the hair surface, thereby increasing the lipophilicity of the hair, do.

The higher aliphatic alcohols that can be used to form the lamellar liquid crystal structure in the composition of the present invention include cetyl alcohol, stearyl alcohol, Cetearyl Alcohol, and Behenyl alcohol But it is not limited thereto.

In the present invention, the amount of the higher aliphatic alcohol is preferably 0.1 to 10% by weight, and more preferably 2 to 10% by weight based on the total weight of the composition. If the content is less than 0.1% by weight, the emulsion is structurally unstable. If the content is more than 10% by weight, the viscosity is too high, resulting in poor spreadability and inconvenient usability.

Surfactants that can be used to form the lamellar liquid crystal structure in the compositions of the present invention are the sorbitan series. More specifically, examples of the sorbitan-based surfactant include cetearyl olivate * sorbitan olivate, sorbitan sesquioleate, sorbitan stearate * sorbitol laurate and the like.

In the present invention, the surfactant is preferably used in an amount of 0.1 to 15% by weight, preferably 2 to 10% by weight based on the total weight of the composition. If the content is less than 0.1% by weight, the stability of the liquid crystal structure is deteriorated or crystals are formed by the aliphatic alcohol. If the content is more than 15% by weight, crystal of the surfactant starts to form and starts to mix with the lamellar structure.

Further, the composition of the present invention may be used as a commercially available liquid crystal forming complex. For example, a product such as NIKKOL Nikkomulese LC (manufactured by NIKKO CHEMICALS CO., LTD.) May be used.

In addition, the lamellar liquid crystal structure used in the present invention may be formed of a homomixer or an agmixer commonly used in the art.

The hair cosmetic composition of the present invention has good wettability to hair, imparts softness and smoothness to the hair, and in particular, has an increased attraction force to the hair surface, so that the imparted properties can be maintained for a long period of time.

There is no particular limitation on the formulation of the hair cosmetic composition of the present invention. However, it is possible to formulate the hair cosmetic composition of the present invention in the form of hair tonic, hair nutrition lotion, hair essence, hair serum scarf treatment, hair treatment, hair conditioner, hair shampoo or hair lotion May be a cosmetic composition.

In addition, in the respective formulations, the ingredients other than the above-mentioned essential ingredients can be suitably selected and blended by those skilled in the art depending on the kind of the external preparation, the purpose of use, and the like.

Hereinafter, the present invention will be described in more detail by way of the following examples and test examples, but the present invention is not limited thereto.

[Reference Example 1] Preparation of hair treatment (Preparation of compositions of Examples 1 to 3 and Comparative Examples 1 to 5)

The hair treatments of Examples 1 to 3 and Comparative Examples 1 to 5 were prepared by a conventional method using a homomixer according to the composition shown in Table 1 below. (C1698 is 98%), stearyl alcohol (ELOCOL C1899 (C18 is 99%), LG Household & Health Products), and cetearyl alcohol Because there are differences in the texture and conditioning effects of formulations such as viscosity and hardness depending on the type, they are used in various combination ratios.

In addition, Examples 1 to 3 included a sorbitan-based surfactant, cetearyl olivate * sorbitan olivate (Olivem 1000 (product of B & T Company)).

(Unit: wt%) number Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 One Purified water To 100 To 100 To 100 To 100 To 100 To 100 To 100 To 100 2 glycerin 2 2 2 2 2 2 2 2 3 Behen trimonium chloride, behen trimonium chloride (KQC) One One One One One One One One 4 Stearothermonium chloride (KSCI), stearothermonium chloride (KQC) 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 5 Cetearyl Olivate * Sorbitan Olivate 3 3 3 - - - - - 6 Cetearyl alcohol - - 3 - - - - 3 Stearyl alcohol 3 - - 3 3 - One - Cetyl alcohol - 3 - - One 3 3 - 7 Dimethicone 10 10 10 10 10 10 10 10 8 Phenoxyethanol 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 9 incense 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3

<Manufacturing Method>

1. Mix raw materials 1 to 5 uniformly and heat to 75 ℃.

2. Mix raw materials 6 to 8 uniformly and heat to 75 ℃.

3. Mix the mixture of the above 1 and the mixture of the above 1 with a mixing mixer.

4. After cooling the mixture of 3 above to 40 캜, the raw material 9 is mixed and cooled to 30 캜.

[Test Example 1] Observation of liquid crystal formation

Polarizing microscope NIKON ECLIPSE 80i (Nikon, Japan) was used to observe the formation of a lamellar structure of liquid crystals in Examples 1 to 3 and Comparative Examples 1 to 5 prepared in Reference Example 1. Particularly, observation results for Example 3 and Comparative Examples 2, 4 and 5 are shown in Figs. 1 to 4. Fig.

In the case of the example prepared in Reference Example 1, it can be confirmed that a maltese cross shape is generally observed by a polarizing microscope.

On the other hand, when no sorbitan surfactant was used, the morphological cross-shape was not observed at all, and it was confirmed that there was no significant difference in the presence or absence of liquid crystal formation depending on the type and ratio of the higher aliphatic alcohol.

[Test Example 2] Sensory evaluation

The hair treatments of Examples 1 to 3 and Comparative Examples 1 to 5 were subjected to sensory evaluation in the following manner.

After 10 professional evaluation personnel were allowed to use the hair treatments of Examples 1 to 3 and Comparative Examples 1 to 5, a comparative test was conducted on the evaluation items shown in Table 2 below. The lowest score was 1 And the highest score was 7. The endurance was assessed 24 hours after use.

Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Softness / Smoothness 4.4 4.4 4.5 4.3 4.4 4.2 4.4 4.5 vitality 4.8 5 5.3 4.4 4.5 4.5 4.6 4.6 Brittle 5.2 5.5 5.3 4.9 4.7 5.2 5.1 4.9

In Table 2, it can be seen that the hair cosmetic composition according to the present invention is similar in softness but increased in the sustaining power as compared with the comparative example having a general formulation structure.

From this, it can be seen that the composition according to the present invention has a lamellar liquid crystal structure, facilitating adsorption on the surface of hair and improving wettability, thereby increasing the sustaining power and thus maintaining the softness of the hair for a long time Able to know.

[Test Example 3] Evaluation of adsorption amount and duration of composition (wool swatch test)

The hair treatments of Example 3 and Comparative Example 5 were evaluated for adsorption amount and retentivity by the following method.

1 g of each treatment composition of Example 3 or Comparative Example 5 was treated with a wool cloth of 5 cm * 5 cm in size, then left for 3 minutes and then rinsed for 30 seconds in running water. For comparison, wool cloth not treated with the treatment composition was used as a control. Then, the wool cloth was further washed with shampoo (Amos Beauty Shampoo, AmorePacific Co., Ltd.) 0 to 3 times, and the wool cloth was immersed in a 0.5% Rubine dye solution to develop color (Rubine dye test) . Next, the degree of coloration was measured by a colorimeter (CHROMA METER CR-100, MINOLTA CAMERA CO., LTD., Japan), and the remaining amount of the composition remaining in the wool cloth was evaluated according to the number of rinsing. The measurement results are shown in Fig.

5, when a composition (Example 3) having a lamellar liquid crystal structure according to the present invention was applied and a composition (general formulation, Comparative Example 5) having no lamellar liquid crystal structure was applied, It can be confirmed that the adsorption amount on the cloth is similar. However, when a composition which does not have a lamellar liquid crystal structure is applied by washing twice with shampoo, most components are removed and the amount of adsorption of the composition is almost zero. On the other hand, when a composition having a liquid crystal structure is applied, It can be confirmed that a considerable amount of the composition is adsorbed.

From this, it can be seen that the composition according to the present invention can easily adsorb to the hair by forming a lamellar liquid crystal structure, while retaining the adsorbed components for a longer period of time, thereby increasing the sustainability of hair softness.

[Test Example 4] Evaluation of the stability of composition (measurement of contact angle of hair)

Healthy hair has hydrophobic properties, and when hair is damaged, it becomes hydrophilic so that the contact angle with water becomes small (see FIG. 6): Corruption: decolorization Moisture measuring device: hydrophobic (surface tension measurement) / K100 Tensiometers, KRUSS GmbH , Germany). Therefore, by measuring the contact angle of the hair, it is possible to know the degree of change of the physical properties of the hair, thereby evaluating whether the hair is damaged or not.

Hair treatment compositions of Example 3 and Comparative Example 5 were treated with hair tress damaged by discoloration, and then left for 3 minutes and then rinsed for 30 seconds in running water. Then, the hair was further washed with shampoo (Amos Beauty Shampoo, AMOREPACIFIC Co., Ltd.) 0 to 3 times, and the contact angle of hair tress was measured according to the number of cleaning times. The measurement results are shown in Fig.

In the case of the tress applying the composition having the liquid crystal structure according to the present invention, the contact angle is higher than the tress applying the composition having no liquid crystal structure (general formulation, Comparative Example 5), which is maintained at a constant level even after further washing with the shampoo .

This is because the composition according to the present invention having a lamellar liquid crystal structure can remain in damaged hair for a longer time longer than a composition having no lamellar liquid crystal structure to increase the sustaining ability of hair softness and thereby change the physical properties of the hair it means.

Claims (7)

Higher aliphatic alcohols; And a liquid crystal formed by using a sorbitan-based surfactant. The cosmetic composition for hair according to claim 1, wherein the liquid crystal has a lamellar structure. The method of claim 1, wherein the higher aliphatic alcohol is at least one selected from the group consisting of Cetyl Alcohol, Stearyl Alcohol, Cetearyl Alcohol, and Behenyl Alcohol A cosmetic composition for hair. The cosmetic composition for hair according to claim 1, wherein the higher aliphatic alcohol is contained in an amount of 0.1 to 10% by weight based on the total weight of the composition. 2. The hair cosmetic composition according to claim 1, wherein the sorbitan-based surfactant is at least one selected from the group consisting of cetearyl oleate * sorbitan olivate, sorbitan sesquioleate and sorbitan stearate * sorbityl laurate. Cosmetic composition. The cosmetic composition for hair according to claim 1, wherein the surfactant is contained in an amount of 0.1 to 15% by weight based on the total weight of the composition. 7. The cosmetic composition for hair according to any one of claims 1 to 6, wherein the composition is for promoting the softness of hair.

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