CN112057355A - Sunscreen skin care product additive and application thereof - Google Patents

Abstract

The invention relates to a sun-screening skin care product additive which comprises the following raw materials in parts by weight: 4.5-12 parts of zinc oxide, 6-15 parts of titanium dioxide and 0.5-3.5 parts of carbon nanohorn; the invention utilizes the characteristic that the carbon nanohorn can absorb ultraviolet light at UVB segment, and replaces organic auxiliary materials which assist in absorbing ultraviolet light at UVB segment but are harmful to human body in the existing physical sun-screening agent, the carbon nanohorn is a carbon homomorphic isomer, and the carbon nanohorn does not contain toxic substances such as arsenic, lead, mercury and the like, thereby meeting the requirements that the total number of bacteria in cosmetics is less than 10CFU/g, and the total number of mould and yeast is less than 10 CFU/g; and because the dosage of the carbon nanohorn is less than that of the conventional organic auxiliary material for absorbing ultraviolet light of UVB section, the dosage of other protective auxiliary materials is relatively favorable for being increased, and the sun-proof skin care product additive is more favorable for achieving better sun-proof effect.

Description

Sunscreen skin care product additive and application thereof

Technical Field

The invention belongs to the technical field of cosmetics, and particularly relates to a sunscreen skin care product additive and application thereof.

Background

Ultraviolet rays in sunlight are mainly divided into three types, namely long-wave ultraviolet rays (UVA), medium-wave ultraviolet rays (UVB) and short-wave ultraviolet rays (UVC), wherein the UVA wavelength is 400-400 nm, the UVB wavelength is 320-320 nm, and the UVC wavelength is 100-280 nm. At present, UVC can be completely absorbed by an ozone layer, UVB is only partially absorbed by the ozone layer, UVA is not absorbed, and ultraviolet rays reaching the earth surface mainly comprise UVA (more than or equal to 90 percent) and UVB (less than or equal to 10 percent). UVA has strong penetrating power, can penetrate through the surface layer of the skin to reach tissues below dermis, destroys the fine structures in the skin such as collagen, elastic fiber tissues and the like, causes suntan to the skin, and causes the skin to be damaged by wrinkles, aging and the like. UVB mainly causes cutaneous erythema response, DNA damage and immunosuppression,

sunscreens can be classified into organic and inorganic ultraviolet absorbers according to their chemical structure. Common organic uv absorbers are: isooctyl methoxycinnamate (commonly known as OMC) is the most widely used UVB ultraviolet absorbent in the current sunscreen cosmetics, and the light stability of OMC is higher in a pure compound state, but the sun resistance or light stability of the emulsified system of the sunscreen cosmetics under ultraviolet rays is not high particularly in the presence of water and surfactants, and in addition, the photodegradation product of OMC can generate certain stimulation to the skin. Another commonly used sunscreen agent is phenyl benzimidazole sulfonic acid, which is a UVB absorber and also absorbs a small portion of the UVA band, and generates free radicals when exposed to sunlight, thereby damaging DNA of the skin and possibly causing carcinogenesis in severe cases.

The inorganic ultraviolet absorber is mainly a zinc oxide formula or a titanium dioxide formula, also called a physical sun-screening agent, and zinc oxide is a full-wave-band physical sun-screening agent which can prevent UVA and UVB from damaging skin, but is more focused on UVA; the titanium dioxide blocks ultraviolet UVB and partial UVA in a reflection scattering mode, and the zinc oxide absorbs the UVB less than the titanium dioxide, but is more emphasized than the UVA; in order to make up for the deficiency of the two components in the ultraviolet absorption spectrum and the light leakage between the zinc oxide or titanium dioxide particles, an organic ultraviolet absorbent capable of assisting in absorbing ultraviolet light is usually added into the sunscreen skin care product to realize the broad-spectrum sunscreen effect, but the organic ultraviolet absorbent usually has toxic effect on human bodies.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a safe and nontoxic sun-screening skin care product additive and application thereof.

The technical scheme of the invention is as follows:

a sun-screening skin care product additive comprises the following raw materials in parts by weight: 4.5-12 parts of zinc oxide, 6-15 parts of titanium dioxide and 0.5-3.5 parts of carbon nanohorn.

Further, the particle size of the zinc oxide ranges from 100nm to 285nm, and the particle size of the titanium dioxide ranges from 297nm to 500 nm.

Further, the carbon nanohorn particle size ranges from 2 to 100 nm.

Furthermore, the average particle size of the solute in the sunscreen skin care product additive is about 100-200 nm.

Furthermore, the sun-screening skin care product additive also comprises 0.2-2 parts of vitamin C and 0.2-2 parts of vitamin E.

The preparation method of the sunscreen skin care product additive comprises the following steps:

step one, ball milling carbon nanohorns prepared by an electric arc method for 1-4 hours, and adding deionized water to prepare carbon nanohorn mixed solution;

adding zinc oxide powder into the carbon nanohorn mixed solution and stirring for 1-4 hours until the mixture is uniformly mixed;

adding titanium dioxide powder into the carbon nanohorn mixed solution and stirring for 1-4 hours until the mixture is uniformly mixed;

adding vitamin C and vitamin E into the carbon nanohorn mixed solution, and stirring for 1-4 hours until the mixture is uniformly mixed;

and step five, performing vacuum filtration on the carbon nanohorn mixed solution added with the zinc peroxide powder, the titanium dioxide powder, the vitamin C and the vitamin E through 100-mesh and 300-mesh to obtain the finished product of the sun-screening skin care product additive.

Furthermore, the average particle size of the solute in the finished product of the sunscreen skin care product additive is about 100-200 nm.

Further, the weight part of the added deionized water is 50-70 parts.

Further, a small amount of auxiliary agents are added while deionized water is added, and the auxiliary agents are lavender extract, traditional Chinese medicine extract essence solution, cucumber extract, wax gourd extract or rose essential oil.

The sunscreen skin care product is prepared from the sunscreen skin care product additive, and the total weight of zinc oxide and titanium dioxide in the sunscreen skin care product additive accounts for 13.5-34.5% of the total weight of the sunscreen skin care product.

Further, the sunscreen skin care product is face cream, BB cream, CC cream, sun screen, isolation milk, pre-makeup milk, foundation, sunscreen lotion, sunscreen cream or sunscreen milk.

Compared with the prior art, the invention has the beneficial effects that:

the invention utilizes the characteristic that the carbon nanohorn can absorb ultraviolet light at UVB segment, and replaces organic auxiliary materials which assist in absorbing ultraviolet light at UVB segment but are harmful to human body in the existing physical sun-screening agent, the carbon nanohorn is a carbon homomorphic isomer, and the carbon nanohorn does not contain toxic substances such as arsenic, lead, mercury and the like, thereby meeting the requirements that the total number of bacteria in cosmetics is less than 10CFU/g, and the total number of mould and yeast is less than 10 CFU/g; and because the dosage of the carbon nanohorn is less than that of the conventional organic auxiliary material for absorbing ultraviolet light of UVB section, the dosage of other protective auxiliary materials is relatively favorable for being increased, and the sun-proof skin care product additive is more favorable for achieving better sun-proof effect.

Drawings

Fig. 1 is a result of an absorbance test of the carbon nanohorn of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

A sun-screening skin care product additive comprises the following raw materials in parts by weight: 4.5-12 parts of zinc oxide, 6-15 parts of titanium dioxide, 0.5-3.5 parts of carbon nanohorns and a proper amount of deionized water, wherein the deionized water can be added according to the requirement to prepare sunscreen skin care product additives with different concentrations; wherein the particle size range of the zinc oxide is 100nm-285nm, the particle size range of the titanium dioxide is 297nm-500nm, the particle size range of the carbon nanohorn is 2-100nm, and the average particle size of the solute in the sunscreen skin care product additive is about 100-200 nm.

Furthermore, the sun-screening skin care product additive also comprises 0.2-2 parts of vitamin C and 0.2-2 parts of vitamin E.

As shown in FIG. 1, four curves a, b, c, and d in FIG. 1 represent 95A/cm, respectively, for the absorbance test result of the inventive carbon nanohorn, since the carbon nanohorn is produced by the arc method, different current densities affect the generation and aggregation of the carbon nanohorn to a certain extent²、240A/cm²、424A/cm²、848A/cm²As can be seen from the figure, the carbon nanohorn has a higher absorption peak in the range of wavelength 220-300nm, so that the carbon nanohorn can replace the organic auxiliary materials which are harmful to human bodies and assist in absorbing ultraviolet light in the UVB section in the existing physical sun-screening agent.

The embodiment also provides a preparation method of the sunscreen skin care product additive, which comprises the following steps:

step one, ball milling carbon nanohorns prepared by an electric arc method for 1-4 hours, and adding deionized water to prepare carbon nanohorn mixed solution;

adding zinc oxide powder into the carbon nanohorn mixed solution and stirring for 1-4 hours until the mixture is uniformly mixed;

adding titanium dioxide powder into the carbon nanohorn mixed solution and stirring for 1-4 hours until the mixture is uniformly mixed;

adding vitamin C and vitamin E into the carbon nanohorn mixed solution, and stirring for 1-4 hours until the mixture is uniformly mixed; it should be noted that the sequence of the third step, the fourth step and the fifth step can be changed, and the purpose of adding each raw material independently is more beneficial to mixing uniformly;

and fifthly, performing vacuum filtration on the carbon nanohorn mixed solution added with the zinc peroxide powder, the titanium dioxide powder, the vitamin C and the vitamin E through 100-mesh and 300-mesh to obtain the finished product of the sun-proof skin care product additive, wherein the filter screen can be 100-mesh, large insoluble particles in the carbon nanohorn mixed solution are removed through vacuum filtration to increase the comfort level of a consumer during use, and the average particle size of solutes in the finished product of the sun-proof skin care product additive is about 100-mesh and 200 nm.

Further, the added deionized water accounts for 50-70 parts by weight, and different parts by weight of deionized water such as 50 parts, 55 parts, 60 parts, 65 parts or 70 parts by weight of deionized water can be added as required, and the deionized water is used as a solvent.

Furthermore, a small amount of auxiliary agents are added while deionized water is added, 0.1-5 parts of auxiliary agents are added according to needs, the auxiliary agents are lavender extract, traditional Chinese medicine extract essence solution, cucumber extract, white gourd extract or rose essential oil, the auxiliary agents increase the beauty effect and appropriate fragrance, and the auxiliary agents are more easily accepted by consumers.

The embodiment also provides a sunscreen skin care product, which is prepared from the sunscreen skin care product additive, wherein the total weight of zinc oxide and titanium dioxide in the sunscreen skin care product additive accounts for 13.5-34.5% of the total weight of the sunscreen skin care product, and is specifically adjusted according to the type or sunscreen grade of the sunscreen skin care product, and the type of the sunscreen skin care product is a cream or emulsion skin care product, specifically a face cream, a BB cream, a CC cream, a sun screen, a barrier cream, a pre-makeup cream, a foundation, a sunscreen lotion, a sunscreen cream or a sunscreen milk.

Example 2

This example is another embodiment based on example 1, and the description of the same technical solution as in example 1 will be omitted, and only the technical solution different from example 1 will be explained.

A sun-screening skin care product additive comprises the following raw materials in parts by weight: 4.5 parts of zinc oxide, 6 parts of titanium dioxide, 0.5 part of carbon nanohorns, a small amount of vitamin E and a proper amount of deionized water, wherein the deionized water can be added according to the requirement to prepare the sunscreen skin care product additives with different concentrations.

Furthermore, the sun-screening skin care product additive comprises 0.5 part of vitamin C, 0.5 part of vitamin E and 60-70 parts of deionized water.

Example 3

This example is another embodiment based on example 1, and the description of the same technical solution as in example 1 will be omitted, and only the technical solution different from example 1 will be explained.

A sun-screening skin care product additive comprises the following raw materials in parts by weight: 6 parts of zinc oxide, 8 parts of titanium dioxide, 2 parts of carbon nanohorns, 0.8 part of vitamin C, 0.6 part of vitamin E and 65 parts of deionized water.

Example 4

This example is another embodiment based on example 1, and the description of the same technical solution as in example 1 will be omitted, and only the technical solution different from example 1 will be explained.

A sun-screening skin care product additive comprises the following raw materials in parts by weight: 8 parts of zinc oxide, 10 parts of titanium dioxide, 2.5 parts of carbon nanohorns, 1 part of vitamin C, 0.8 part of vitamin E and 66 parts of deionized water.

Example 5

This example is another embodiment based on example 1, and the description of the same technical solution as in example 1 will be omitted, and only the technical solution different from example 1 will be explained.

A sun-screening skin care product additive comprises the following raw materials in parts by weight: 9 parts of zinc oxide, 10 parts of titanium dioxide, 2.8 parts of carbon nanohorns, 1.1 parts of vitamin C, 0.9 part of vitamin E and 60 parts of deionized water.

Example 6

This example is another embodiment based on example 1, and the description of the same technical solution as in example 1 will be omitted, and only the technical solution different from example 1 will be explained.

A sun-screening skin care product additive comprises the following raw materials in parts by weight: 8.5 parts of zinc oxide, 9 parts of titanium dioxide, 2.3 parts of carbon nanohorns, 1 part of vitamin C, 0.6 part of vitamin E and 65 parts of deionized water.

Example 7

This example is another embodiment based on example 1, and the description of the same technical solution as in example 1 will be omitted, and only the technical solution different from example 1 will be explained.

A sun-screening skin care product additive comprises the following raw materials in parts by weight: 10 parts of zinc oxide, 12 parts of titanium dioxide, 3 parts of carbon nanohorns, 1 part of vitamin C, 1 part of vitamin E and 70 parts of deionized water.

Example 8

This example is another embodiment based on example 1, and the description of the same technical solution as in example 1 will be omitted, and only the technical solution different from example 1 will be explained.

A sun-screening skin care product additive comprises the following raw materials in parts by weight: 10 parts of zinc oxide, 14 parts of titanium dioxide, 3.2 parts of carbon nanohorns, 1.2 parts of vitamin C, 1 part of vitamin E and 68 parts of deionized water.

Example 9

This example is another embodiment based on example 1, and the description of the same technical solution as in example 1 will be omitted, and only the technical solution different from example 1 will be explained.

A sun-screening skin care product additive comprises the following raw materials in parts by weight: 12 parts of zinc oxide, 15 parts of titanium dioxide, 3.5 parts of carbon nanohorns, 2 parts of vitamin C, 2 parts of vitamin E and 70 parts of deionized water.

Example 10

This example is another embodiment based on example 1, and the description of the same technical solution as in example 1 will be omitted, and only the technical solution different from example 1 will be explained.

A sun-screening skin care product additive comprises the following raw materials in parts by weight: 11 parts of zinc oxide, 15 parts of titanium dioxide, 3.4 parts of carbon nanohorns, 1.8 parts of vitamin C, 1.8 parts of vitamin E and 70 parts of deionized water.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims (9)

1. The sun-screening skin care product additive is characterized by comprising the following raw materials in parts by weight: 4.5-12 parts of zinc oxide, 6-15 parts of titanium dioxide and 0.5-3.5 parts of carbon nanohorn.

2. The sunscreen skin care additive of claim 1 wherein: the particle size range of the zinc oxide is 100nm-285nm, and the particle size range of the titanium dioxide is 297nm-500 nm.

3. The sunscreen skin care additive of claim 1 wherein: the grain size of the carbon nanohorn is 2-100 nm.

4. The sunscreen skin care additive of claim 1 wherein: also comprises 0.2 to 2 portions of vitamin C and 0.2 to 2 portions of vitamin E.

5. The method for preparing the sunscreen skin care additive as claimed in claim 4, which comprises the following steps:

step one, ball milling carbon nanohorns prepared by an electric arc method for 1-4 hours, and adding deionized water to prepare carbon nanohorn mixed solution;

adding zinc oxide powder into the carbon nanohorn mixed solution and stirring for 1-4 hours until the mixture is uniformly mixed;

adding titanium dioxide powder into the carbon nanohorn mixed solution and stirring for 1-4 hours until the mixture is uniformly mixed;

adding vitamin C and vitamin E into the carbon nanohorn mixed solution, and stirring for 1-4 hours until the mixture is uniformly mixed;

and step five, performing vacuum filtration on the carbon nanohorn mixed solution added with the zinc peroxide powder, the titanium dioxide powder, the vitamin C and the vitamin E through 100-mesh and 300-mesh to obtain the finished product of the sun-screening skin care product additive.

6. The method for preparing the additive for sunscreen skin care products according to claim 5, wherein: the weight portion of the added deionized water is 50-70 portions.

7. The method for preparing the additive for sunscreen skin care products according to claim 5, wherein: adding deionized water and a small amount of adjuvant, wherein the adjuvant is selected from Lavender extract, Chinese medicinal extract solution, fructus Cucumidis Sativi extract, fructus Benincasae extract or oleum Rosae Rugosae.

8. A sunscreen skin care product is characterized in that: the sunscreen skin care product is prepared from the sunscreen skin care product additive of any one of claims 1 to 4, and the total weight of the zinc oxide and the titanium dioxide in the sunscreen skin care product additive accounts for 13.5 to 34.5 percent of the total weight of the sunscreen skin care product.

9. The sunscreen skin care product of claim 8, wherein: the sunscreen skin care product is face cream, BB cream, CC cream, sun screen, isolation milk, pre-makeup milk, foundation, sunscreen lotion, sunscreen cream or sunscreen milk.

Images