KR20180034202A - Skin whitening and sunscreen composition comprising nanomaterials and chinese herbal extract - Google Patents

Abstract

Provided is a skin-whitening and ultraviolet-screening composition containing a nanomaterial and an herbal medicine extract, wherein the nanomaterial contains nanocrystalline cellulose or a nanocrystalline cellulose-fullerene particle mixture, and the herbal medicine extract is composed of angelica, a peach kernel extract, a cnidium extract, a common bletilla tuber extract, and menthol. The content of the nanomaterial is 4-7 wt%, and the total content of angelica, a peach kernel extract, a cnidium extract, a common bletilla tuber extract, and menthol is 5-12 wt%, and the residual water is included.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a skin whitening and ultraviolet ray shielding composition containing nanomaterials and herbal medicine extracts,

The present invention relates to the field of skin care, more particularly to skin whitening and ultraviolet screening compositions containing nanocrystalline cellulose (NCC) and Chinese herbal extract.

Skin whitening and ultraviolet screening are very popular for alleviating or eliminating facial problems. However, most skin whitening and sunscreen products contain heavy metal or fluorescent powder components. For example, most skin lightening and sunscreen component comprises a titanium dioxide (TiO _2). The Chinese patent of Patent No. CN No. 102076317A discloses cosmetics containing titanium dioxide. Titanium dioxide has an excellent effect on skin whitening, ultraviolet shielding, UV protection and the like, but titanium dioxide appears to be very white under the reflection of ultraviolet rays (UV). Once the use of titanium dioxide is stopped, The whitening and UV blocking ingredients were washed and then restored to their original appearance. Moreover, if such skin whitening and sunscreen ingredients are used for a long period of time, there will be some harm to the skin. In addition, skin whitening and sunscreen products containing titanium dioxide make the skin contours particularly unnatural and affect skin whitening and ultraviolet blocking effects. That is, skin whitening and sunscreen ingredients that can replace titanium dioxide and have little or no harm to the skin are needed.

In addition, nanocrystalline cellulose is a high-efficiency antioxidant for combating human aging. Such super strong antioxidant compounds not only can improve human health, but may also be used in more anti-aging products.

It is an object of the present invention to provide a skin lightening and ultraviolet screening composition that fully exploits the antioxidant function of nanocrystalline cellulose and the advantageous aspects of traditional Chinese medicine in natural, non-toxic and healthy.

According to one aspect of the present invention, there is provided a skin whitening and ultraviolet screening composition comprising a nanomaterial and a herbal extract, wherein the nanomaterial comprises a nanocrystalline cellulose or nanocrystalline cellulose-fullerene particle mixture; The herbal medicine extract includes Angelica, Peach kernel extract, Ligusticum wallichii extract, Common bletilla tuber extract and menthol, wherein the content of the nanomaterial is 4-7 weight %, And the total content of the angelica, doenne extract, citron extract, common tuberous extract and menthol is 5-12 wt%, and the remaining water is included.

An advantageous effect of the present invention is that nanomaterials, such as nanocrystalline cellulose, on the one hand, are advantageous to avoid skin oxidation and, on the other hand, are advantageous for the skin to absorb due to the relatively small particle size of the nanomaterial .

In addition, the use of traditional oriental medicine for skin whitening and ultraviolet ray shielding allows the nutrients to penetrate deep into the skin layer and can be further protected by moisture, skin moisturizing, skin whitening and ultraviolet screening, anti-irritation, wrinkle resistance, Acne removal and so on. Moreover, the herbal medicine component has skin whitening effect and ultraviolet ray blocking effect which make skin appearance more natural, and is advantageous for skin health after long-term use.

According to an aspect of the present invention, there is provided a skin whitening and ultraviolet screening composition comprising a nanomaterial and a herbal extract, wherein the nanomaterial comprises a nanocrystalline cellulose or nanocrystalline cellulose-fullerene particle mixture; Wherein the content of the nanomaterial is 4-7% by weight, and the content of the nanomaterial is in the range of 4-7% by weight, and the content of the nanomaterial is in the range of 4-7% by weight, The total content is 5-12% by weight, and it contains residual water.

In addition, the nanocrystalline cellulose (NCC) is a high-efficiency antioxidant for combating human aging. Such super strong antioxidant compounds not only can improve human health, but may also be used in more anti-aging products. In addition, the nanocrystalline cellulose has a better anti-UV effect and contributes to eliminating UV hazards to the skin after prolonged use.

The present invention can include nanocrystalline cellulose alone and NCC can also be combined with fullerene particles to form an NCC-fullerene particle mixture wherein the addition of fullerene promotes the effect of nanocrystalline cellulose better . Such a mixture can be referred to as a " bucky ball ", and can be regarded as a "nano vacuum cleanser" that can absorb and neutralize harmful free radicals in the body, thereby achieving an effect of improving skin and alleviating skin harm .

The NCC-fullerene particle mixture can be formed using various methods, and any technique that is already known in the present invention or developed in the future can be employed to form a mixture. The method of forming the mixture is not a subject of discussion of the present invention and will therefore not be described any further.

According to an embodiment of the present invention, the herbal medicine extract comprises angelica, doenan extract, cinnabar extract, common tuberous extract and menthol, wherein the total content thereof is 5-12 wt% of the total weight.

According to the first to ninth aspects of the present invention, the content of the nanocrystalline cellulose-fullerene particle mixture is each in the range of 1-9 wt%, wherein the content of the nanocrystalline cellulose-fullerene particle mixture in each embodiment is 1% by weight. Furthermore, in the first to ninth aspects, the total content of angelica, doenne extract, cncran extract, common tuberous extract and menthol is 5 wt%, and the particle size of the nanocrystalline cellulose is selected from the range of 70 to 80 nm.

The nanocrystalline cellulose obtained by acid hydrolysis of vegetable fibers contained in cotton, hemp and wood pulp plates is a nanoparticle having a length of 150 to 300 nm, a diameter of 30 to 100 nm and a degree of polymerization of 160 to 180, It is a particle with a length of 200 nm and a diameter of 70-80 nm. This example has a relatively better effect on the one hand and an effective cost control on the other hand.

Table 1 shows a table comparing the absorbances for the light having the different wavelengths in Embodiments 1 to 9. The absorbance of the solution is measured using an ultraviolet and visible light spectrophotometer (Model: UV-2450). Absorbing cell specifications: quartz absorbing cell (1 cm) with two sides polished; Environmental conditions: temperature 28 ° C; Wavelength range: 280-380nm.

wavelength 280 nm 300 nm 320nm 340 nm 360nm 380 nm Mode 1 1.33 1.48 1.29 1.39 1.40 1.29 Mode 2 1.98 1.83 1.63 1.54 1.90 1.99 Mode 3 2.10 2.07 2.34 2.23 2.17 2.44 Mode 4 4.32 3.52 4.24 3.85 4.00 4.27 Mode 5 4.24 4.25 4.70 4.08 4.60 4.52 Mode 6 4.18 4.07 4.36 4.33 4.66 4.17 Mode 7 4.59 4.02 4.39 4.46 4.44 3.97 Mode 8 4.31 4.60 4.40 4.66 4.47 4.41 Mode 9 3.13 3.89 3.45 3.30 3.21 3.81

It can be seen from Table 1 that in the case of Embodiment 1, that is, when the content of the nanocrystalline cellulose-fullerene particle mixture is 1 wt%, the absorbance for light having a wavelength of 280 nm is 1.33 and the absorbance for light having a wavelength of 300 nm is 1.48 , The absorbance for light having a wavelength of 320 nm is 1.29, the absorbance for light having a wavelength of 340 nm is 1.39, the absorbance for light having a wavelength of 360 nm is 1.40, and the absorbance for light having a wavelength of 380 nm is 1.29. All of these figures are at a relatively lower level.

For Examples 2 and 3, there is a specific increase in absorbance, but the increase range is so small that no significant absorption is caused.

For each of Embodiments 4-9, the absorbance is significantly increased and can mostly reach 4 or more, which clearly contributes to reducing skin damage due to UV light.

Furthermore, the absorbance in each of the embodiments 8 and 9 can also reach four or more, while the effects of aspects 8 and 9 are neither significant nor weak compared to aspects 4-7, while the aspects 8 and 9, 9 is undesirable in terms of the economic advantage of having to add larger amounts of nanocrystalline cellulose.

Nanocrystalline cellulose having a particle size of 70-80 nm as selected in the present invention can lead to better compromise between performance and cost, and it is easy to provide a product with superior performance to the user.

In the present invention, herbal medicine extracts such as angelica, doine extract, cynomolium extract, common tuber extract and menthol are described below.

Angelica, doein extract, cynthia gum extract and common grown tuberous extract have original whitening effect, and because they are herb extracts, they are harmless to the human body, have natural whitening effect, and do not cause fluorescence effect. In addition, the above-mentioned herbal medicine extracts have a wider contact area with the skin when used in combination with the nanocrystalline cellulose-fullerene particle mixture of the present invention, thereby promoting the absorption of these nutrients by the skin.

Menthol has a pungent flavor and a cool and refreshing effect, which is beneficial for the user to maintain a pleasant mind and improves comfort.

According to a preferred embodiment of the present invention, the weight ratio of angelica, doenui extract, citron extract, common tuberous extract and menthol is 2-3: 1-2: 3-5: 4-6: 4-8.

In addition, in order to ensure that the composition prepared has a long working life, is stable and has good tactile properties, the skin whitening and sunscreen composition according to a preferred embodiment of the present invention comprises the following components: glyceryl monostearate, The composition further comprises a component selected from petrolatum, petrolatum, propylene glycol, xanthan gum, aloe gel, glycerin, span, tween and methyl paraben, and the total content of the above-mentioned ingredients is 4-10 wt.%.

Glyceryl monostearate is generally used as an emulsifier in foods and cosmetics; Vaseline contributes to the formation of a protective film on the skin surface, thereby preventing water loss; Propylene glycol is generally used as a moisturizer in a facial mask or a wet paper napkin to prevent the formed mixture from losing too much moisture, thereby prolonging the storage time; Improve the thickness of the xanthan black composition and improve the stability of the emulsion system; Aloe gel is mainly used in skin care products of cosmetics, such as moisture retention, UV protection, anti-odor, skin softening, inflammation weakening and itching relief, pain relief, acne and freckle prevention, Glycerin has the effect of retaining moisture and preventing skin dryness; The span is mainly used as a dispersant for promoting dissolution of other components; The twin has a certain undesirable odor and is not added or added in minor amounts; Methylparabens are advantageous in that they have a relatively strong inhibitory effect on bacteria and ensure that the compositions of the present invention have a longer duration and a stable quality.

According to a preferred embodiment of the present invention, the weight ratio of glyceryl monostearate, vaseline, propylene glycol, xanthan gum, aloe gel, glycerin, span, tween and methyl paraben is: glyceryl monostearate: 0-1.6; Vaseline: 4-6.5; Propylene glycol: 0-2; Xanthan gum: 0-3.5; Aloe gel: 1.5-4.5; Glycerin: 1-2; Span: 2.5-5.5; Twin: 0-1; And methyl paraben: 1.5-3.

Manufacturing method

First, we create the following four groups of substances:

Group A: glyceryl monostearate, petrolatum, span and twin;

Group B: propylene glycol, glycerin and nanocrystalline cellulose-fullerene particle mixture;

Group C: angelica, doin extract, cinnabar extract, common grown tuber extract and menthol; And

Group D: water, xanthan gum, aloe gel and methyl paraben.

The material of group A is first heated to 50 DEG C and then placed in a high speed homogenization mixer. Subsequently, the material of group B and the material of group C were gradually added to the material of group A at a stirring rate of 2,000 revolutions per minute (rpm) per minute, and the materials of groups A, B and C were uniformly mixed, The materials are added and then stirred for 30 minutes continuously at the same stirring rate. The entire material is removed from the mixer and placed in a 20 MPa high pressure homogenizer for treatment to obtain a composition of the present invention. Subsequently, the composition is sterilized at a constant temperature of 80 캜 for 2 hours and naturally cooled to room temperature to obtain a UV-blocking cream.

One of ordinary skill in the art will understand that the weight of each of the ingredients described above can be obtained based on the ratio and content of the present invention disclosed above to obtain the composition disclosed by the present invention.

The composition of the present invention can prevent ultraviolet ray irradiation in a UVA region of 320-380 nm and a UVB region of 280-320 nm, and has an SPF of 15 or more to protect human skin. These sunscreen creams are safe, non-toxic to the body, have high UV protection and are applicable to all types of people.

Claims (5)

A skin whitening and ultraviolet screening composition comprising a nanomaterial and a herbal extract,
Wherein the nanomaterial comprises a nanocrystalline cellulose or nanocrystalline cellulose-fullerene particle mixture,
Wherein said herbal medicine extract comprises angelica, doin extract, cinnabar extract, common tuberous extract and menthol,
The content of the nanomaterial is 4 to 7% by weight,
Wherein the total content of said angelica, doenan extract, cinnabar extract, common tuberous extract and menthol is 5 to 12% by weight, and the balance comprises water. The method according to claim 1,
The skin whitening and ultraviolet screening composition according to claim 1, wherein the weight ratio of angelica, doenne extract, cuneiform extract, common tuber extract and menthol is 2-3: 1-2: 3-5: 4-6: 4-8. The method according to claim 1,
Wherein the nanocrystalline cellulose has a particle size of 70 to 80 nm. The method according to claim 1,
Wherein the cosmetic composition further comprises ingredients selected from glyceryl monostearate, vaseline, propylene glycol, xanthan gum, aloe gel, glycerin, span, tween and methyl paraben, wherein the total content of these ingredients is 4 to 10% Whitening and ultraviolet screening compositions. 5. The method of claim 4,
Wherein the weight ratio of the glyceryl monostearate, vaseline, propylene glycol, xanthan gum, aloe gel, glycerin, span,
Glyceryl monostearate: 0-1.6;
Vaseline: 4-6.5;
Propylene glycol: 0-2;
Xanthan gum: 0-3.5;
Aloe gel: 1.5-4.5;
Glycerin: 1-2;
Span: 2.5-5.5;
Twin: 0-1; And
Methylparaben: 1.5-3, skin whitening and ultraviolet screening composition.