KR102022455B1

KR102022455B1 - Cosmetic composition for eyebrow or eyelash

Info

Publication number: KR102022455B1
Application number: KR1020120116254A
Authority: KR
Inventors: 장순희; 이지영
Original assignee: (주)아모레퍼시픽
Priority date: 2012-10-18
Filing date: 2012-10-18
Publication date: 2019-09-18
Also published as: KR20140049883A

Abstract

The present invention is a patent for a cosmetic composition containing carbon black having a high degree of black and excellent in volume and adhesion durability. More specifically, the use of carbon black coated with a cationic polymer and a binding polymer improves adhesion persistence by electrostatic bonding of anionic hair, eyebrows, and eyelashes, compared to the particle size of uncoated raw carbon black. As the particle size of a carbon black is more than 10 times larger, the coating amount is increased and the volume effect is excellent. In addition, uncoated raw carbon black pigment has a problem in that workability is uncomfortable due to very small particle size and low specific gravity. There is no problem, so the workability is convenient.

Description

Cosmetic composition for eyebrows or eyelashes {Cosmetic composition for eyebrow or eyelash}

The present invention is a patent for a cosmetic composition for eyebrows or eyelashes containing carbon black which is high in blackness and excellent in volume and adhesion persistence. More specifically, the use of carbon black coated with a cationic polymer and a binding polymer improves adhesion persistence by electrostatic bonding of anionic hair, eyebrows, and eyelashes, compared to the particle size of uncoated raw carbon black. As the particle size of a carbon black is more than 10 times larger, the coating amount is increased and the volume effect is excellent. In addition, uncoated raw carbon black pigment has a problem in that workability is uncomfortable due to very small particle size and low specific gravity. There is no problem, so the workability is convenient.

Carbon black is a very fine pigment with a particle size of several tens of nanometers, which is obtained by incombusting hydrocarbon gas or oil. Carbon black is used firstly to colorize, secondly to stabilize the contents and thirdly to color plastics and coatings. Carbon black, which has the advantage that black color is superior to iron oxide or titanium oxide which shows other black colors, has been regulated by countries due to its safety issue, but carbon black refined by CTFA in 2004 in the US The use of D & C Black # 2 was approved in Korea, establishing the criteria for the use of carbon black in Korea on April 30, 2010, in the regulation on the designation of ingredients for domestic cosmetics.

Carbon black is mainly used in eye cosmetic compositions such as mascara, eyebrow, eyeliner and the like. Mascara is applied to the eyelashes to make the eyelashes clear by raising the eyelashes abundantly.In the early days, mascara was a solid mixture of sodium stearate and carbon black. Vegetable ester waxes or hydrocarbon waxes are emulsified by mixing with a highly stable polymer with adequate plasticity. This is because the mascara of the emulsion formulation is much more advantageous to give mascara intrinsic functions such as volume, curling, and persistence. As mentioned above, there are ways to make the eyelashes richer, or to create a visually dark eye by sharpening the black color of the composition, even if the same amount of application, the composition is more voluminous if the black color of the composition is dark and vivid. It can make a clear eye, and even if it has the same degree of blackness, there is an advantage that the volume of the application is more voluminous and darker.

Republic of Korea Patent Publication No. 10-2009-0056396

Accordingly, the present inventors have studied to prepare a mascara composition having excellent clarity of black color and excellent volume, and excellent adhesion sustainability that is not easily separated from eyebrows or eyelashes, and thus, carbon black coated with a cationic polymer and a binding polymer It was found that the object can be achieved by using to complete the present invention.

Accordingly, an object of the present invention is to improve the adhesion persistence by the electrostatic bonding of anionic hair, eyebrows and eyelashes by using carbon black coated with a cationic polymer and a binding polymer, particle size of the raw carbon black uncoated The particle size of the coated carbon black is 10 times larger than that of the coated carbon black, thereby providing a cosmetic composition for eyebrows or eyelashes having excellent volume effect. In addition, uncoated raw carbon black pigment has a problem in that workability is uncomfortable due to very small particle size and low specific gravity. There is no problem, so the workability is convenient.

The present invention relates to a cosmetic composition for eyebrows or eyelashes containing coated carbon black prepared by coating raw carbon black with a cationic polymer and a binding polymer.

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

The raw carbon black according to the present invention refers to a carbon black pigment which is not coated, and any carbon black pigment used in the present invention may be suitable for the cosmetic industry. In addition, the surface coating of the carbon black may use a conventional coating method, the method is not particularly limited.

Cationic polymers according to the present invention represent any polymer comprising cationic groups and groups capable of being ionized with cationic groups. The cationic polymer may be selected from those containing units comprising primary, secondary, tertiary and quaternary amine groups which may form part of the main chain or may be side substituents bonded to the main chain. Specifically, copolymers of 1-vinyl-2-pyrrolidone and 1-vinyl-3 methylimidazolium salt which are quaternary vinylpyrrolidone and vinyl imidazole polymers (polyquaternium-16), dimethyl 1-di Aryl quaternary ammonium chloride homopolymers (polyquaternium-6) and copolymers of acrylamide and dimethyl diallylammonium chloride (polyquaternium-7).

Other cationic polymers that can be used in the present invention include, for example, cationic cellulose derivatives and cationic starch derivatives as polysaccharide polymers. The cationic cellulose derivatives include salts of hydroxyethyl cellulose reacted with trimethyl ammonium substituted epoxide (polyquaternium-10) and polymeric quaternary ammonium of hydroxyethyl cellulose reacted with lauryl dimethyl ammonium substituted epoxide Salts (polyquaternium-24) and the like. Also used are cationic guar rubber derivatives, including, for example, guar hydroxypropyl trimonium chloride. Cationic starch includes commercially available corn starch and potato starch. Cationic polymers may be used alone or in combination with other cationic polymers.

The binding polymers according to the invention apply as polymers which serve to uniformly cure the whole material by penetrating into a portion of the material which is not completely cured. In the present invention, the carbon black pigment coated with the cationic polymer itself is stable, but dispersing the size of the pigment finely using a heating process that maintains a high temperature of 70 ° C. or higher, a homo mixer or an azi mixer, etc. Since the coated cationic polymer may come off again when exposed to a process or an emulsification process, the carbon black pigment coated with the cationic polymer is not sufficient to be a completely cured material. Accordingly, there is a need for a binding polymer, which is a curable material capable of preventing the cationic polymer from falling off under the composition manufacturing environment while maintaining the surface potential of the cationic polymer coated on the surface of the carbon black dye. Suitable binding polymers for use in the present invention are hard type polymers that can hold cationic polymers strongly and speed up binding. The hard polymer refers to a polymer having a glass transition temperature of 30 ° C. or higher, and the monomer units include styrene groups, methyl methacrylate groups, ethyl methacrylate groups, butyl methacrylate groups, methyl acrylate groups, and vinyl acetate. Group, a cellulose group, etc. are applicable. Preferably the binding polymer is ethylcellulose. The binding polymer may be used alone or in combination with other binding polymers.

The schematic diagram of the coated carbon black coated with the above-mentioned raw carbon black with a cationic polymer and a binding polymer is shown in FIG. 1. The cationic polymer is preferentially placed on the surface of the raw carbon black, and the binding polymer is sandwiched between the cationic polymers to prevent the cationic polymer from falling off due to temperature, dispersion strength (rpm), etc. during the composition preparation. As such, the surface of the coated carbon black maintains a cationic potential.

In one embodiment of the present invention, when coating the surface of the raw carbon black, the amount of the cationic polymer and the binding polymer as a coating material may be 1 part by weight or more than 30 parts by weight based on 100 parts by weight of the raw carbon black. . In another embodiment of the present invention, the amount of the cationic polymer and the binding polymer as the coating material may be 70 parts by weight or less or 60 parts by weight or less based on 100 parts by weight of the raw carbon black. In another embodiment of the present invention, when coating the surface of the raw carbon black, the amount of the cationic polymer and the binding polymer as a coating material may be 1 part by weight to 70 parts by weight based on 100 parts by weight of the raw carbon black. It may be more preferably 30 parts by weight to 60 parts by weight. If the amount is less than 1 part by weight, the surface coating effect is hardly expected because the amount is too small. If the amount is more than 70 parts by weight, the amount of cationic charge increases and the aggregation of the carbon black particles increases, so that the surface coating is even and uniform. In addition, since the hydrophobicity of the binding polymer is not so high that it is not easy to disperse, emulsification at the time of preparing the composition is difficult to formulate, which is difficult to formulate.

In one embodiment of the present invention, when coating the surface of the raw carbon black, the amount of the binding polymer may be 1 part by weight or more or 2.5 parts by weight or more based on 100 parts by weight of the cationic polymer. In another embodiment of the present invention, when coating the surface of the raw carbon black, the amount of the binding polymer may be 40 parts by weight or less or 25 parts by weight or less based on 100 parts by weight of the cationic polymer. In another embodiment of the present invention, when coating the surface of the raw carbon black, the amount of the binding polymer may be 1 part by weight to 40 parts by weight with respect to 100 parts by weight of the cationic polymer, more preferably And 2.5 parts by weight to 25 parts by weight. When the amount of the binding polymer is less than 1 part by weight based on 100 parts by weight of the cationic polymer, the effect of the coating is weak to prevent the dropping of the cationic polymer at high temperatures during the preparation of the composition, so it is difficult to expect the effect of increasing the volume, and exceeding 40 parts by weight. This is because the dispersing power is poor during formulation preparation due to the strong hydrophobicity of the binding polymer is bad formulation stability.

In one embodiment of the present invention, the carbon black coated with the cationic polymer and the binding polymer according to the present invention may be contained in more than 0.1% by weight or more than 1% by weight relative to the total weight of the composition. In another embodiment of the present invention, the carbon black coated with the cationic polymer and the binding polymer according to the present invention may be contained in an amount of 50% by weight or less or 10% by weight or less based on the total weight of the composition. In another embodiment of the present invention, the carbon black coated with the cationic polymer and the binding polymer according to the present invention is contained in an amount of 0.1 wt% to 50 wt%, more preferably 1 wt% to 10 wt%. If the content is less than 0.1% by weight, not only the color of the black is too weak, but also the volume effect is not properly exhibited. If the content is more than 50% by weight, the carbon black tends to agglomerate, making it difficult to disperse evenly in the composition. Since the viscosity of the excessively raised, there is a problem of applying a stiff and sticky.

The cosmetic composition for eyebrows or eyelashes according to the present invention may contain emulsifiers, waxes, antifoams, preservatives, thickeners, polymers and the like within the range not impairing the object and effect of the present invention in addition to the above components.

The cosmetic composition for eyebrows or eyelashes according to the present invention improves the adhesion sustainability by electrostatic bonding with anionic hair, eyebrows, and eyelashes by using carbon black coated with a cationic polymer and a binding polymer. As the particle size of the coated carbon black is 10 times larger than the particle size of the carbon black, the coating amount increases, thereby providing a cosmetic composition for eyebrows or eyelashes having excellent volume effect. In addition, the raw carbon black pigment of the uncoated raw material has a problem in that it is inconvenient to work due to the very small particle size and low specific gravity, such as flying fine particles during the preparation of the composition, whereas the coated carbon black according to the present invention is 10 times larger particles. There is no problem to blow in the air by the size, there is also the advantage of ease of operation.

1 is a schematic diagram of coated carbon black coated with raw carbon black with a cationic polymer and a binding polymer.
2 is a photograph taken with a digital camera the results of the powder falling test according to Test Example 3.
3 is a photograph taken with a digital camera the results of the waterproof test according to Test Example 4.

Hereinafter, although an Example is given and this invention is demonstrated in detail, this invention is not limited only to these examples.

[Comparative Examples 1-2 and Examples 1-3]

According to the composition shown in Table 1 below, the mascara of Comparative Examples 1-2 and Examples 1-3 were prepared. Comparative Examples 1-2 were manufactured with the composition ratio of the conventional mascara.

Ingredient Name (Unit: Weight%) Comparative Example 1 Comparative Example 2 Example 1 Example 2 Example 3 1. Candelilla Nap 5.0 5.0 5.0 5.0 5.0 2. Paraffin 5.0 5.0 5.0 5.0 5.0 3. Beeswax 5.0 5.0 5.0 5.0 5.0 4. Sorbitan stearate 1.0 1.0 1.0 1.0 1.0 5. Polysorbate 60 1.0 1.0 1.0 1.0 1.0 6. Carnauba 3.0 3.0 3.0 3.0 3.0 7. Purified water To 100 To 100 To 100 To 100 To 100 8. Xanthan Gum 2.0 2.0 2.0 2.0 2.0 9. FV 1.5 1.5 1.5 1.5 1.5 10. Butylene Glycol 10.0 10.0 10.0 10.0 10.0 11.carbon black 3.0 - - - - 12. Surface Treatment Carbon Black A - 3.0 - - - 13. Surface treatment carbon black B - - 3.0 - - 14. Surface Treatment Carbon Black C - - - 3.0 - 15. Surface Treatment Carbon Black D - - - - 3.0 16. Acrylate Copolymer 10.0 10.0 10.0 10.0 10.0 17. Preservative Quantity Quantity Quantity Quantity Quantity * Surface treatment carbon black A: Carbon black surface-coated with 10 parts by weight of polyquaternium-6 based on 100 parts by weight of raw carbon black.
* Surface treated carbon black B: Carbon black coated with 10 parts by weight of polymer (polyquaternium-6 and ethyl cellulose) based on 100 parts by weight of raw carbon black
Surface treated carbon black C: carbon black coated with 40 parts by weight of polymer (polyquaternium-6 (90%) and ethyl cellulose (10%)) based on 100 parts by weight of raw carbon black
Surface treated carbon black D: Carbon black coated with 40 parts by weight of polymer (polyquaternium-6 (75%) and ethyl cellulose (25%)) based on 100 parts by weight of raw carbon black

1) The components 1-6 are dissolved while heating to 80 degreeC.

2) The components 7-15 are stirred, heating to 80 degreeC.

3) The emulsion is emulsified by slowly adding 2) to 1).

4) After emulsification, it cools to 30 degreeC, adding components 16-17 to said 3).

5) Fill the mascara container.

Test Example 1 Sensory Evaluation

For 10 days, 30 women aged 20 to 40 who use the mascara products of Comparative Examples 1-2 prepared by the conventional method and the Mascara products of Examples 1-3 manufactured by the method of the present invention daily or frequently After actual use, the effect of the product was compared. Test items were volume, no powder fall off, and waterproof. After rating each item, the average score was given by giving a score of 0-15. In order to ensure the accuracy of the data was repeated five times each, the results are shown in Table 2 below. When average score was less than 4.0, it represented by "x", 4.0-8.0, "(triangle | delta)", 8.1-12.0, "(circle)", and when it exceeds 12.0, it represented with "(◎)".

Test Items Comparative Example 1 Comparative Example 2 Example 1 Example 2 Example 3 Volume X △ ○ ◎ ◎ No powder fall off △ △ ○ ○ ○ Waterproof X △ ○ ○ ◎

In the results of Table 2, Comparative Example 1, which is a conventional composition containing raw carbon black having a fine particle size, and Comparative Example 2, which contains carbon black surface-coated with a cationic polymer, have very small pigment particle size and Due to the problem of cationic polymer dropout during the preparation of the composition, it showed very low satisfaction in volume, waterproof. On the other hand, Examples 1 to 3 containing the carbon black surface coated with the cationic polymer and the binding polymer and having a particle size of about 3.5 μm and more than 10 times larger have very high satisfaction in volume, powder falling, and waterproof effects. Through this, it can be confirmed that the coating material of the carbon black surface was maintained without falling off during the composition preparation.

Test Example 2 Coating Amount Test

The application amount of the mascara prepared from the compositions according to Comparative Examples 1 to 2 and Examples 1 to 3 was tested by the following method.

1) Prepare the false eyelashes and weigh them.

2) Apply the composition to the false eyelashes 18 times using a brush containing 1g of each composition and dry completely before weighing.

3) Subtract 1) from 2) to get the amount of content applied.

It was repeated three times for each composition to obtain an average value, the results are shown in Table 3 below.

Test Items Comparative Example 1 Comparative Example 2 Example 1 Example 2 Example 3 Coating amount (mg) 5 14 22 29 26

In the results of Table 3, Examples 1 to 3 according to the present invention can be seen that the coating amount is very large compared to Comparative Examples 1 to 2 of the existing mascara composition. This means that the higher the coating content of the cationic polymer, the higher the coating amount, and thus, the stronger the coating of the pigment surface with the cationic polymer, the stronger the electrostatic bonding strength with the anionic eyelash surface.

Test Example 3 Powder Falling Test

Powder falling off of mascara prepared from the compositions according to Comparative Examples 1 to 2 and Examples 1 to 3 was tested by the following method.

1) Each composition is applied to a glass plate with a thickness of 100 μm using an applicator and then completely dried.

2) Make a grid pattern on the glass plate using a cross cutter.

3) Using a tape, peel off the contents from the glass plate with the same force.

4) Measure the peeled tape with a digital camera and compare the amount of contents.

The test results taken with the digital camera in 4) are shown in FIG. 2.

In the results of Figure 2, Examples 1 to 3 of the present invention can be seen that the powder fall significantly reduced compared to Comparative Examples 1 and 2, which is a conventional mascara composition, through which the electrostatic bonding force is closely related to the powder fall You can see this.

Test Example 4 Waterproof Test

The waterproof effect of mascara prepared from the compositions according to Comparative Examples 1 to 2 and Examples 1 to 3 was tested by the following method.

1) Apply 20mg of each composition on the false eyelashes to dry completely.

2) Soak 10 ml of water on the dried false eyelashes.

3) After 10 minutes, cover the filter paper on the wet false eyelashes and push with a roller.

4) Take the rolled filter paper with the digital camera and compare the amount of the contents.

The test results taken with the digital camera in 4) are shown in FIG. 3.

In the results of Figure 3, Examples 1 to 3 according to the present invention can be seen that the waterproof effect is remarkably excellent because there is almost no mascara liquid buried in the filter paper compared to Comparative Examples 1 to 2 which is a conventional mascara composition. . Through this, it can be seen that the surface of the coated carbon black became very hydrophobic as the hydrophobic property became stronger as the content of the binding polymer increased with strong adhesion as the cationic potential increased.

Claims

A cosmetic composition for eyebrows or eyelashes, wherein the raw carbon black contains carbon black coated with a mixture of cationic polymer and binding polymer,
The cationic polymer is a polymer containing an amine group,
The binding polymer is a polymer in which the monomer unit is a cellulose group,
The mixture of the cationic polymer and the binding polymer forms a coating layer on the surface of the raw carbon black, wherein the binding polymer is located between the cationic polymer, the cosmetic composition for eyebrows or eyelashes .

The cosmetic composition for eyebrows or eyelashes according to claim 1, wherein the coated carbon black is contained in an amount of 0.1 to 50% by weight based on the total weight of the composition.

The cosmetic composition for eyebrows or eyelashes according to claim 1, wherein the amount of the cationic polymer and the binding polymer is 1 to 70 parts by weight based on 100 parts by weight of the raw carbon black.

The cosmetic composition for eyebrows or eyelashes according to claim 1, wherein the coated carbon black is contained in an amount of 1 to 10% by weight based on the total weight of the composition.

The cosmetic composition for eyebrows or eyelashes according to claim 1, wherein the amount of the cationic polymer and the binding polymer is 30 to 60 parts by weight based on 100 parts by weight of the raw carbon black.

The cosmetic composition for eyebrows or eyelashes according to claim 5, wherein the amount of the binding polymer is 1 to 40 parts by weight based on 100 parts by weight of the cationic polymer.