KR20180056902A - Skin whitening and sunscreen composition comprising nano materials and chinese medicine extract - Google Patents

Abstract

The present invention provides a skin whitening and sunscreen composition containing a nanomaterial and a Chinese herbal extract, wherein the nanomaterial comprises a nanocrystalline cellulose or nanocrystalline cellulose-fullerene particle mixture, and the Chinese herbal extract comprises a Cordyceps militaris extract, an Artemisia princeps extract, a Lonicera japonica extract, a pearl powder extract, menthol and water. The content of the nanomaterial is 4-7 wt%, and the total content of the Cordyceps militaris extract, the Artemisia princeps extract, the Lonicera japonica extract, the pearl powder extract and the menthol is 3-10 wt%.

Description

TECHNICAL FIELD The present invention relates to a skin whitening and sunscreen composition containing nanomaterials and herbal medicine extracts,

The present invention relates to the field of skin-care and more particularly to skin-whitening and sunscreen compositions containing nanocrystalline cellulose (NCC) and Chinese herbal extracts.

Skin-whitening and sun blockers are 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-whitening and sunscreen ingredients include titanium dioxide (TiO ₂ ). The Chinese patent of Publication No. CN102076317A discloses a cosmetic product containing titanium dioxide. Titanium dioxide has a good effect on skin-whitening, sunshine and UV shielding, but titanium dioxide appears to be very white under the reflection of ultraviolet light (UV), but when the use of titanium dioxide stops, skin- And after the sunscreen component is washed away, the skin returns to its original appearance. In addition, long-term use of the skin-whitening and sunscreen ingredients will cause some damage to the skin. In addition, skin-whitening and sunscreen products containing titanium dioxide make the skin particularly unpleasant, which affects skin-whitening and sunscreen effects. In other words, there is a need for skin-whitening and sunscreen ingredients that can replace titanium dioxide and have little or no damage to the skin.

Moreover, nanocrystalline cellulose is a high-efficiency antioxidant to counteract human aging. The super strong antioxidant compound not only can improve human health, but also can be used in more anti-aging products.

It is an object of the present invention to provide a skin-whitening and daylight-blocking composition that fully utilizes the antioxidant functions of nanocrystalline cellulose and the beneficial aspects of natural, harmless and healthy traditional medicinal herbs.

According to an aspect of the present invention there is provided a skin-whitening and sunscreen composition comprising a nanomaterial and a Chinese herb extract, wherein the nanomaterial comprises a nanocrystalline cellulose or nanocrystalline cellulose-fullerene particle mixture; Chinese herbal extracts include Cordyceps sinensis extract, Folium artemisiae argyi extract, Honeysuckle extract, Pearl powder extract, menthol and water, wherein the content of nanomaterial is 4-7 wt. , And the total content of Cordyceps sinensis extract, Folium artemisiae argyi extract, Honeysuckle extract, Pearl powder extract and menthol is 3-10% by weight.

The beneficial effect of the present invention is that nanomaterials, such as nanocrystalline cellulose, on the one hand are beneficial for preventing skin oxidation and on the other hand are beneficial for absorption by the skin due to the relatively small particle size of the nanomaterials .

In addition, the use of traditional Chinese medicine for skin-whitening and sunscreen interventions contributes to penetration into the deep layers of skin by nutritional ingredients, and additionally contributes to moisture retention, skin moisturization, skin-whitening and sun- Anti-wrinkle, anti-inflammatory, discharge of harmful substances, and removal of acne. In addition, Chinese herbal ingredients have skin-whitening and sunscreen effects that make the skin appear more natural, and are beneficial for long-term skin health.

According to an aspect of the present invention there is provided a skin-whitening and sunscreen composition comprising a nanomaterial and a Chinese herb extract, wherein the nanomaterial comprises a nanocrystalline cellulose or nanocrystalline cellulose-fullerene particle mixture; The herbal extracts of Chinese herbs include Chinese herbal medicine extracts, Chinese herbal medicine extracts, Chinese herbal medicine extracts, pearl powder extracts, menthol and water, wherein the content of nanomaterials is 4-7% The total content of menthol is 3-10 wt%.

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

The present invention can include the nanocrystalline cellulose alone and the NCC can also be combined with the fullerene particles to form an NCC-fullerene particle mixture wherein the addition of fullerene facilitates the effect of the nanocrystalline cellulose. The mixture may also be referred to as a bucky ball and can be regarded as a "nano vacuum cleaner" which can absorb and neutralize harmful free radicals in the human body, thereby achieving skin improvement and skin- can do.

The NCC-fullerene particle mixture can be formed using various methods, and any technique that is already known in the present invention or which will be 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 not be described any further.

According to an embodiment of the present invention, the Chinese herb extract comprises Cordyceps sinensis extract, Leaf extract, Rhododendron extract, Pearl powder extract, wherein the total content of these extracts is 3-10% by weight of the total weight.

According to the first through ninth embodiments of the present invention, the content of the nanocrystalline cellulose-fullerene particle mixture is each in the range of 1 wt% to 9 wt%, and the content of the nanocrystalline cellulose-fullerene particle mixture in each embodiment Is gradually increased by 1 weight%. In addition, in the first to ninth embodiments, the total content of the Cordyceps sinensis extract, the lysolecule extract, the rhizome extract, the pearl powder extract and the menthol is 3% by weight, and the particle size of the nanocrystalline cellulose is between 70 nm and 80 nm .

The nanocrystalline cellulose obtained by acid hydrolysis of vegetable fibers contained in cotton, hemp and wood pulp boards has a length of 150 nm to 300 nm, a diameter of 30 nm to 100 nm and a degree of polymerization of 160 to 180 In an embodiment of the present invention, it is a particle having a length of 200 nm and a diameter of 70-80 nm. This embodiment has relatively good effects on the one hand and can effectively control the cost on the other hand.

Table 1 below provides a table comparing the absorbances for light having different wavelengths in Embodiments 1 to 9. The absorbance of the solution is measured using an ultraviolet and visible light spectrophotometer (Model: UV-2450). Details of the light absorbing cell: a double-side polished quartz absorbing cell (1 cm); Environmental conditions: a temperature of 28 캜; Wavelength range: 280 nm-380 nm.

wavelength 280 nm 300 nm 320 nm 340 nm 360 nm 380 nm Embodiment 1 1.18 1.26 1.22 1.24 1.03 1.27 Embodiment 2 1.79 1.61 1.75 1.96 1.64 1.89 Embodiment 3 2.11 2.04 2.00 2.09 2.40 2.14 Embodiment 4 3.67 4.19 3.61 3.70 4.27 3.76 Embodiment 5 3.94 3.75 4.62 3.78 4.52 4.20 Embodiment 6 4.40 4.08 4.54 4.55 4.34 4.11 Embodiment 7 4.01 4.17 4.52 4.43 4.64 4.53 Embodiment 8 4.60 4.16 4.06 3.91 3.78 4.60 Embodiment 9 3.55 3.73 3.85 3.88 3.78 3.25

It can be seen from Table 1 that in the case of Embodiment 1, that is, when the content of the mixture of nanocrystalline cellulose-fullerene particles is 1 weight, the absorbance for light having a wavelength of 280 nm is 1.18 and the absorbance for light having a wavelength of 300 nm Is 1.26, the absorbance for light having a wavelength of 320 nm is 1.22, the absorbance for light having a wavelength of 340 nm is 1.24, the absorbance for light having a wavelength of 360 nm is 1.03, It is found that the absorbance with respect to light having a wavelength of 1.27 is 1.27. All of these figures are at a relatively lower level.

In the case of Embodiments 2 and 3, although there is a specific increase in absorbance, the range of increase is very small, so no significant degree of extinction is caused.

In each of the embodiments 4-9, the absorbance is significantly increased, and the degree of extinction can reach up to 4 or more, which clearly contributes to reducing skin harm caused by UV light.

In addition, the absorbance in each of Embodiments 8 and 9 may also reach 4 or more, while on the other hand the effects of Embodiments 9 and 9 do not have significant improvement compared to Embodiments 4-7 and are even weakened On the other hand, Embodiments 8 and 9 are undesirable for economic reasons because they require the addition of higher amounts of nanocrystalline cellulose.

As selected in the present invention, nanocrystalline cellulose having a particle size of 70-80 nm can reach a better trade-off between performance and cost, and can easily provide a product with a large performance to a user.

In the present invention, Chinese herbal extracts such as Cordyceps sinensis extract, lobster extract, Rhodiola extract, Pearl powder extract and menthol are described below.

Cordyceps extracts, ladybug extracts, rhizome extracts, and pearl powder extracts have natural whitening effects. They are Chinese herb extracts and have a natural whitening effect, so they are not harmful to the human body and do not produce a fluorescent effect. In addition, when used in combination with the nanocrystalline cellulose-fullerene particle mixture of the present invention, the herbal extract of Chinese herb has a greater contact area with the skin, thereby promoting the absorption of these nutrients by the skin.

Menthol has a mint flavor and refreshing sensation and refreshing effect, and it is beneficial for the user to maintain a pleasant mind and improve the comfort level

According to a preferred embodiment of the present invention, the weight ratio of Cordyceps sinensis extract, Leaf extract, Rhizome extract, Pearl powder extract and menthol is 1-2.5: 2-3.5: 2.5-4.5: 2-4: 1-2.

Additionally, in order to ensure that the resulting composition can have 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 ingredients: glyceryl monostearate The total content of the above-mentioned components is 4 wt% to 10 wt%, and the total content of the above components is 4 wt% to 10 wt%.

Glyceryl monostearate is commonly used in food and cosmetic products as an emulsifier; Vaseline contributes to the formation of a protective film on the surface of the skin to prevent water loss; Propylene glycol is commonly used as a moisturizer in facial masks or wet paper napkins to prevent the formed compounds from losing too much moisture and to prolong storage times; Xanthan gum improves the thickness of the composition and improves the stability of the emulsion system; Aloe gel is mainly used in skin care products of cosmetics having functions such as moisture retention, sunshine blocking, odor blocking, skin softening, inflammation weakening and itching relief, pain relief, acne and freckle prevention, pigment spot relaxation; Glycerin has the effect of retaining moisture and preventing the skin from drying out, and span is mainly used as a dispersant for promoting dissolution of other ingredients; The tween is not added or has a particular undesirable odor and is added in minor amounts; Methylparaben has a relatively strong inhibitory effect on bacteria and is advantageous to ensure that the composition of the present invention works longer and has 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 in the range of from 0 to 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, the following four groups of materials are produced:

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

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

Group C: Cordyceps melliflora extract, Leaf extract, Rhizome extract, Pearl powder 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 substance of Group B and the substance of Group C were gradually added to the substance of Group A at a stirring rate of 2,000 revolutions per minute (rpm), and after the substances of Group A, B and C were uniformly mixed, Lt; / RTI > is added, and then stirred for 30 minutes at the same stirring rate continuously. All materials are removed from the mixer and placed in a 20 MPa high pressure homogenizer for processing to obtain the composition of the present invention. The composition is then sterilized at a constant temperature of 80 DEG C for 2 hours and naturally cooled to room temperature to obtain a sunscreen cream.

It will be understood by those skilled in the art that the weight of each component 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 is capable of preventing ultraviolet ray irradiation in the UVA region of 320-380 nm and the UVB region of 280-320 nm and has a sunscreening index (SPF) value of 15 or more to protect the human skin do. The sunscreen cream is safe, harmless to the human body, has a high sunlight shielding function, and is applicable to all persons.

Claims (5)

Nanomaterials and Chinese herbal extracts, wherein
Wherein the nanomaterial comprises a nanocrystalline cellulose or nanocrystalline cellulose-fullerene particle mixture;
Wherein the Chinese herb extract comprises Cordyceps sinensis extract, Folium artemisiae argyi extract, Honeysuckle extract, Pearl powder extract, menthol and water, wherein
The content of the nanomaterial is 4-7% by weight,
A skin-whitening and sunscreen composition, wherein the total content of Cordyceps sinensis extract, lobster extract, Rhodiola extract, Pearl powder extract and menthol is 3-10 wt%. The skin-whitening and sunscreen composition according to claim 1, wherein the weight ratio of Cordyceps sinensis extract, Rhodiola extract, Rhodophyta extract, Pearl powder extract and menthol is 1-2.5: 2-3.5: 2.5-4.5: 2-4: 1-2 . The skin-whitening and sunscreen composition of claim 1, wherein the particle size of the nanocrystalline cellulose is 70-80 nm. The composition of claim 1, wherein the skin-whitening and sunscreen composition further comprises glyceryl monostearate, vaseline, propylene glycol, xanthan gum, aloe gel, glycerin, span, tween, , And the total content of these components is 4 wt% to 10 wt%. The composition according to claim 4, wherein the weight ratio of 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. A skin-whitening and sunscreen composition.