WO2019017735A2

WO2019017735A2 - Water drop solid uv-blocking cosmetic composition

Info

Publication number: WO2019017735A2
Application number: PCT/KR2018/008237
Authority: WO
Inventors: 김용우; 이남희
Original assignee: 한국콜마주식회사
Priority date: 2017-07-21
Filing date: 2018-07-20
Publication date: 2019-01-24
Also published as: CN107638302A; KR101813222B1; CN107638302B; WO2019017735A3

Abstract

The present specification discloses a water drop solid UV-blocking cosmetic composition. A water drop solid UV-blocking cosmetic composition according to an aspect of the present invention has an excellent moisturizing effect and can impart a refreshing feeling on the skin due to water drops that instantly form when the composition is applied to the skin. Moreover, the composition according to the present invention has excellent formulation stability, such that phenomenon of component separation of components in the composition can be minimized, and can be uniformly applied to the skin to be able to impart the skin with a uniform UV-blocking effect.

Description

Water drop solid cosmetic composition for ultraviolet screening

Disclosed herein is a cosmetic composition for water drop solid UV blocking and a method for producing the same.

Water drop type cosmetics refers to cosmetics that can absorb water contained in cosmetics when they are applied to the skin to form water droplets on the skin and replenish enough moisture to the skin. Recently, attempts have been made to introduce such water drop cosmetic technology into cosmetics for ultraviolet rays shielding. However, cosmetics having excellent stability against ultraviolet ray shielding while maintaining the performance of water drop type cosmetics have not yet been developed. For example, Korean Patent Registration No. 10-1678559 discloses a water drop solid type water-in-oil type cosmetic composition containing a modified inorganic ultraviolet screening powder, which does not form a water drop well, Problems such as feeling of use feeling and separation of formulations and separation of components contained in the cosmetic composition have been found. As a result, the moisturizing effect of the water drop type cosmetics is not sufficiently realized on the skin, and the ultraviolet screening agent is not evenly distributed on the skin due to the formulation separation, and thus the effect as an ultraviolet screening agent is insignificant. Therefore, there is a need to develop cosmetics which have excellent water drop forming ability and formulation stability and also have excellent ultraviolet ray shielding effect while containing a sunscreen agent.

[Prior Art Literature]

(Patent Document 1) KR10-2014-0081293A

(Patent Document 2) KR10-1678559B

In one aspect, an object of the present invention is to provide a water-drop solid cosmetic composition having an ultraviolet-shielding effect and a moisturizing effect.

In one aspect, an object of the present invention is to improve the formulation stability of a water-drop solid cosmetic composition containing a sunscreen agent.

In order to achieve the above object, the present invention provides an organic sunscreen agent; Inorganic sunscreen agents; An oily phase including an emulsifier, an oil and a solidifying agent; And a water phase containing water. The present invention also provides a cosmetic composition for water drop solid UV blocking.

The cosmetic composition for water-drop solid UV-screening, which is one aspect of the present invention, can impart a refreshing feeling to the skin with excellent moisture-absorbing effect owing to the water drop immediately generated upon application of the skin. In addition, the composition of the present invention is excellent in formulation stability, minimizing component separation of components in the composition, and evenly applied to the skin, thereby imparting an even UV-blocking effect to the skin. In addition, the composition of the present invention forms a water drop and contains both an organic UV blocking agent and an inorganic UV blocking agent, and has an excellent ultraviolet blocking effect.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a state where a water drop is formed in the composition of the present invention. FIG.

FIG. 2 is a view showing compositions of Comparative Examples 1 to 11 and 13 of the present specification, in which no water drop is formed. FIG.

Fig. 3 is a diagram showing the composition of Comparative Example 12 of the present specification, showing moisture separation phenomenon. Fig.

Hereinafter, the present invention will be described in detail.

The present invention relates to an organic sunscreen agent; Inorganic sunscreen agents; An oily phase including an emulsifier, an oil and a solidifying agent; And water, wherein the composition is a water drop solid UV blocking cosmetic composition.

The emulsifier may be selected from the group consisting of Cetyl PEG / PPG-10/1 Dimethicone, Lauryl PEG-8 Dimethicone, Dimethicone / 10/15 crosspolymer, laurylpyrid-9 polydimethylsiloxyethyl dimethicone, phage-9 polydimethylsiloxy ethyldicichone, lauryl pyridine-10 Tris (trimethylsiloxy) silyl ethyl dimethicone, phage / piperazine-19/19 dimethicone, phage / piperazine-18/18 dimethicone, phage-10 dimethicone and sorbitan sesquioleate , But is not limited thereto.

One aspect of the present invention is a composition comprising, as said emulsifier, cetylpiperazine / phyphage-10/1 dimethicone or laurylphage-8 dimethicone; Dimethicone / phage-10/15 crosspolymer; And sorbitan sesquioleate.

In one embodiment, the composition is selected from the group consisting of cetylpiperazine / phyphage-10/1 dimethicone or laurylphage-8 dimethicone; Dimethicone / phage-10/15 crosspolymer; And sorbitan sesquioleate in a weight ratio of 1: 0.5 to 2: 0.3 to 2 , preferably 1 : 1 to 2 : 0.5 to 1.5. When the emulsifier is contained at the above content ratio, a water drop solid UV blocking cosmetic composition containing an ultraviolet screening agent and having excellent water drop forming power and securing formulation stability can be obtained. In addition, the water drop produced upon application of the composition of the present invention has an average diameter of about 1.1 to 1.3 times larger than that of a conventional water drop cosmetic, resulting in a high moisture content and excellent moisturizing effect.

In the above aspect, the cetylpiperazine / phopipio-10/1 or laurylphage-8 dimethicone may be contained in an amount of 0.2 to 1.0% by weight based on the total weight of the composition, preferably 0.3 to 0.8 By weight, more preferably 0.4 to 0.8% by weight.

In the above aspect, the emulsifier may be contained in an amount of 0.5 to 4.0% by weight, preferably 1.0 to 3.0% by weight, more preferably 0.7 to 2.5% by weight, By weight, and most preferably 1.0 to 2.0% by weight. If the content of the emulsifier exceeds 4.0% by weight, a water drop can not be formed when applying the cosmetic composition.

In the above aspect, the solidifying agent may comprise a wax. The wax includes, but is not limited to, at least one selected from the group consisting of candelilla wax, carnauba wax, microcrystalline wax, beeswax, ceresin, polyethylene, _C30-45 alkyl methicone, ceresin and ozokerite can do.

The solidifying agent may be included in an amount of 1 to 10 wt%, preferably 2 to 9 wt%, more preferably 3 to 8 wt%, and most preferably 4 to 7 wt% based on the total weight of the composition %. &Lt; / RTI > If the content of the solidifying agent is out of the above range, a water drop may not be formed upon application or a crack may be generated in the production of the foundation formulation.

In addition, in the above-mentioned aspect, the oil is selected from the group consisting of caprylic / capric triglyceride, phenyl trimethicone, isoeic acid, diisopropyl adipate hydroisomerized polyisobutene, octyldodecanol, But are not limited to, one or more selected from the group consisting of carbonate, sunflower seed oil, hexyldecyl myristyl methyl aminopropionate, cetyl hexyl hexanoate, macadamia seed oil and dimethicone.

The oil may be included in an amount of 3 to 20 wt%, preferably 5 to 18 wt%, more preferably 7 to 16 wt%, and most preferably 10 to 15 wt%, based on the total weight of the composition %. &Lt; / RTI >

In one aspect, the organic ultraviolet screening agent and the inorganic ultraviolet screening agent may be contained in a weight ratio of 1: 0.1 to 5. Preferably in a weight ratio of 1: 0.1 to 2, more preferably 1: 0.4 to 1.2. When the ultraviolet screening agents are included in the weight ratio, excellent ultraviolet shielding effect can be obtained and water drop forming ability is excellent.

On the other hand, the organic ultraviolet screening agent may include, but is not limited to, one or more selected from the group consisting of ethylhexylmethoxycinnamate, ethylhexylsalicylate and homosalate.

The organic UV blocking agent may be contained in an amount of 3 to 25% by weight, preferably 3 to 20% by weight, and more preferably 7 to 20% by weight based on the total weight of the composition. Preferably, the ethylhexylmethoxycinnamate may comprise up to 7.5% by weight, the ethylhexylsalicylate up to 5.0% by weight, and the homosalate up to 10% by weight.

In the above aspect, the inorganic ultraviolet blocking agent may include at least one of titanium dioxide and zinc oxide, but is not limited thereto.

The inorganic UV-blocking agent may be contained in an amount of 0.5 to 50% by weight, more preferably 1 to 35% by weight, more preferably 2 to 30% by weight, further preferably 2.5 to 20% by weight, Preferably 3 to 15% by weight.

The water-pervious portion may further include at least one of alcohols and an agonist. The alcohols may include, but are not limited to, polyhydric alcohols such as glycerin, butylene glycol, propylene glycol, sorbitol, or polyethylene glycol. The alcohols may be included in an amount of 1 to 10 wt%, preferably 2 to 8 wt%, more preferably 3 to 7 wt%, and most preferably 4 to 6 wt% based on the total weight of the composition .

In addition, the thickener may include, but is not limited to, xanthan gum. The thickener may be included in an amount of 0.01 to 1.0% by weight, preferably 0.1 to 0.5% by weight based on the total weight of the composition.

In one aspect, the present invention provides a cosmetic composition comprising: an organic sunscreen; Inorganic sunscreen agents; Emulsifier, oil phase; And a water phase, and a step of mixing the water phase and the water phase.

The method is characterized in that the ultraviolet screening agent and the oil phase are heated at a temperature of 70 to 80 DEG C, at a stirring rate of 1000 to 2500 rpm, RTI ID = 0.0 > dissolving < / RTI > and dispersing.

The method may further include the step of adding an aging agent to the mixture of alcohol and purified water and stirring and stirring at a temperature of 70 to 80 DEG C and a stirring speed of 500 to 2000 rpm for 5 to 30 minutes.

The method may further include the step of adding the water phase to the oil phase at 70 to 80 DEG C, and the adding step is a step of first stirring for 5 to 30 minutes at 500 to 1500 rpm and then at 1500 to 2500 rpm Followed by secondary agitation for 7 to 10 minutes. The method may further include a step of defoaming and filtering the composition at 65 to 80 DEG C to flow out.

The temperature range, stirring speed and agitation time of each of the above methods are optimized for producing the cosmetic composition for water drop solid UV blocking of the present invention. If the above conditions are not satisfied, the formulation stability is poor and the water drop There is a problem that it is not formed.

Hereinafter, the constitution and effects of the present invention will be described in more detail with reference to examples and test examples. However, these examples and test examples are provided for illustrative purposes only in order to facilitate understanding of the present invention, and the scope and scope of the present invention are not limited by the following examples.

[Preparation Example 1] Preparation of water drop solid cosmetic composition containing organic sunscreen agent

Cosmetic compositions were prepared using the ingredients expected in Table 1 below. The preparation method is as follows:

1. Dissolve / disperse the UV blocking / oily phase at a temperature of 70 to 80 ° C (5 to 15 minutes, Homo Mixer 1000 to 2500 rpm).

2. Add a water-soluble thickener (C2) to the water phase (C1, C3) and disperse it by reheating to 70 ~ 80 ℃ (5-30 minutes, Mixer 500 ~ 2000rpm).

3. Transfer the water phase to the oil phase, proceed for 5 to 30 minutes at 500 to 1500 rpm, preliminarily emulsify, and then emulsify at 1500 to 2500 rpm for 7 to 10 minutes. The temperature was maintained at 70-80 ° C.

4. Finally, the composition is defoamed and filtered at 65-80 < 0 > C to drain.

[Table 1]

On the other hand, in Example 3, only 3 wt%, 2 wt% and 2 wt% of ethylhexylmethoxycinnamate, ethylhexylsalicylate and homosalate were included, and each containing 5 wt% of zinc oxide and titanium oxide Was prepared in the same manner as in Example 1.

In addition, Comparative Example 13 was manufactured by referring to Korean Patent No. 10-1678559. In Comparative Example 14, laurylpyridyl-9 polydimethylsiloxyethyl dimethicone was used in an amount of 1 wt% instead of lauryl phage-8 dimethicone, instead of cetylpiperazine / piperazine-10/1 dimethicone Phage-10 dimethicone was used in an amount of 1% by weight.

[Experimental Example 1] Formulation stability evaluation

The compositions prepared in Preparation Example 1 were evaluated for stability by the method described in Table 2 below. The results are shown in Table 3 below.

[Table 2]

Storage conditions

term

Example 1

Example 2

Example 3

Comparative Example 1

Comparative Example 2

Comparative Example 3

Comparative Example 4

Comparative Example 5

Comparative Example 6

Comparative Example 7

Comparative Example 8

Comparative Example 9

Comparative Example 10

Comparative Example 11

Comparative Example 12

Comparative Example 13

Comparative Example 14

45 ° C

1 week

◎

△

X

△

X

△

X

1 month

◎

X

3 months

◎

X

37 ℃

1 week

◎

△

○

△

○

△

1 month

◎

△

X

△

X

3 months

◎

X

△

X

25 ℃

1 week

◎

○

△

○

△

1 month

◎

△

X

△

X

△

X

3 months

◎

X

△

X

0 ℃

1 week

◎

△

X

△

X

1 month

◎

X

3 months

○

◎

X

As a result, the composition of the present invention showed excellent formulation stability at low temperature, room temperature, body temperature and high temperature, but Comparative Examples 1 to 14 in which the emulsifier content was different or the composition of each component was different showed that the formulation was unstable I could.

[Experimental Example 2] Confirmation of water drop forming power

The water drop generation was measured by the number of drop drops scraped off the surface 10 times with a spatula after filling the contents into a 12 g aluminum dish, and the results are shown in Table 5. The water drop generation ability was evaluated according to the criteria shown in Table 4. [

아주 좋음(◎)Very good (◎)	5방울 이상(약 6g)의 드롭 형성More than 5 drops (about 6g) drop formation
좋음(○)Good (○)	2방울 이상 4방울 미만의 드롭 형성Drops of less than 2 drops and less than 4 drops
보통(△)Usually (△)	드롭이 떨어지지는 않으며, 표면에 물이 맺혀있음Drop does not fall, surface has water
나쁨(X)Poor (X)	물이 형성되지 않거나 제형이 무너짐No water formed or formulations collapsed

Example 1

Example 2

Example 3

Comparative Example 1

Comparative Example 2

Comparative Example 3

Comparative Example 4

Comparative Example 5

Comparative Example 6

Comparative Example 7

Comparative Example 8

Comparative Example 9

Comparative Example 10

Comparative Example 11

Comparative Example 12

Comparative Example 13

Comparative Example 14

Water drop formation

◎

△

X

△

X

△

X

[Experimental Example 3] Confirmation of ultraviolet blocking effect

Three measurements were made in vitro with labspere and UV transmittance analyzer, and the average values are shown in Tables 7 and 8.

PFAPFA	PAPA	자외선 A 차단효과Ultraviolet A blocking effect
2 이상 4 미만2 to less than 4	PA+PA +	있음 has exist
4 이상 8 미만4 or more and less than 8	PA++PA ++	많이 있음In lots
8 이상8 or more	PA+++PA +++	매우 많이 있음Very much

The UV blocking effect test results of Examples 1 to 3 and Comparative Examples 1 to 14 are shown in Table 8 below.

Example 1

Example 2

Example 3

Comparative Example 1

Comparative Example 2

Comparative Example 3

Comparative Example 4

Comparative Example 5

Comparative Example 6

Comparative Example 7

Comparative Example 8

Comparative Example 9

Comparative Example 10

Comparative Example 11

Comparative Example 12

Comparative Example 13

Comparative Example 14

PA

PA +++

PA +

--

PA +

PA +++

PA ++

PA +

SPF

40.8

42.4

48.4

24.5

25

22

17.5

16.5

26

23

25

50

7

20

50

16

24.5

[Experimental Example 4]

The panels were applied to the same amount of the compositions of Examples 1 to 3 and Comparative Examples 1 to 14 and tested for spreadability, uniform application, adhesion and refreshing feeling (5 points: excellent, 4 Point: Good, 3 points: Normal, 2 points: Very poor, 1 point: Poor).

	실시예 1Example 1	실시예 2Example 2	실시예 3Example 3	비교예 1Comparative Example 1	비교예 2Comparative Example 2	비교예 3Comparative Example 3	비교예 4Comparative Example 4	비교예5Comparative Example 5	비교예6 Comparative Example 6	비교예7Comparative Example 7	비교예8Comparative Example 8	비교예9Comparative Example 9	비교예10Comparative Example 10	비교예11Comparative Example 11	비교예12Comparative Example 12	비교예13Comparative Example 13	비교예14Comparative Example 14
발림성Brittle	4.54.5	4.54.5	55	3.53.5	4.04.0	3.53.5	2.52.5	2.52.5	2.22.2	4.04.0	4.04.0	2.02.0	3.53.5	3.63.6	2.02.0	2.52.5	2.82.8
균일 도포 여부Whether uniform application	4.84.8	4.74.7	55	3.03.0	3.53.5	3.23.2	3.03.0	2.32.3	3.83.8	3.53.5	3.53.5	2.52.5	3.03.0	3.23.2	2.52.5	2.32.3	3.23.2
밀착력Adhesion	4.84.8	4.84.8	55	3.03.0	3.53.5	3.33.3	2.82.8	3.33.3	3.63.6	2.52.5	2.52.5	4.04.0	2.82.8	3.03.0	3.53.5	2.82.8	3.03.0
청량감Refreshing feeling	5.05.0	4.94.9	55	4.04.0	3.53.5	3.53.5	3.63.6	3.83.8	2.02.0	2.82.8	2.82.8	2.02.0	3.73.7	3.53.5	2.02.0	2.52.5	2.52.5

Claims

A water drop solid cosmetic composition for ultraviolet shielding,

The composition may comprise,

Organic sunscreen agents; Inorganic sunscreen agents; An oily phase including an emulsifier, an oil and a solidifying agent; And water, wherein the cosmetic composition is water drop-solid.
The method according to claim 1,

The above-

Cetyl PEG / PPG-10/1 Dimethicone, Lauryl PEG-8 Dimethicone, Dimethicone / Phage-10/15 Cross, A polymer (Dimethicone / PEG-10/15 Crosspolymer), and sorbitan sesquioleate.
3. The method of claim 2,

The composition comprises, as an emulsifier,

&Lt; / RTI > dimethicone or laurylpiperidine-8 dimethicone;

Dimethicone / phage-10/15 crosspolymer; And sorbitan sesquioleate. The composition for cosmetics for water drop solid UV blocking.
The method of claim 3,

The composition may comprise,

&Lt; / RTI > dimethicone or laurylpiperidine-8 dimethicone;

Dimethicone / phage-10/15 crosspolymer; And sorbitan sesquioleate at a weight ratio of 1: 0.5 to 2: 0.3 to 2, respectively, in water drop solid cosmetic composition for UV screening.
The method according to claim 1,

Wherein the solidifying agent comprises a wax,

Wherein the wax comprises at least one selected from the group consisting of candelilla wax, C 30-45 alkyl methicone, ceresin, and ozokerite.
The method according to claim 1,

The oil,

Wherein the cosmetic composition comprises at least one selected from the group consisting of caprylic / capric triglyceride, phenyl trimethicone, isoeic acid, diisopropyl adipate, and dimethicone.
The method according to claim 1,

The organic UV-

Wherein the cosmetic composition comprises at least one selected from the group consisting of ethylhexyl methoxycinnamate, ethylhexyl methoxycinnamate, ethylhexylsalicylate and homosalate.
The method according to claim 1,

The inorganic UV-

Titanium dioxide, and zinc oxide. &Lt; RTI ID = 0.0 > 11. < / RTI >
The method according to claim 1,

The organic ultraviolet screening agent and the inorganic ultraviolet screening agent,

1: 0.1 to 1: 5, based on the total weight of the cosmetic composition.
The method according to claim 1,

The composition, based on the total weight of the composition,

A water drop comprising 3 to 25% by weight of an organic UV blocking agent, 0.5 to 50% by weight of an inorganic UV blocking agent, 0.5 to 2.5% by weight of an emulsifying agent, 3 to 13% by weight of an oil, 1 to 7% by weight of a solidifying agent, A cosmetic composition for solid UV screening.
The method according to claim 1,

Wherein the water receiving part further comprises at least one of 1 to 10% by weight of alcohols and 0.01 to 1% by weight of an enhancer.
12. The method of claim 11,

Wherein the alcohol comprises a polyhydric alcohol and the thickening agent comprises xanthan gum.
13. A method for producing a cosmetic composition for water-drop solid UV blocking according to any one of claims 1 to 12,

The method comprises:

Organic sunscreen agents; Inorganic sunscreen agents; Emulsifier, oil phase; And a water phase, and mixing the water phase and the water phase.