CN115137681A

CN115137681A - Litchi mask and preparation method thereof

Info

Publication number: CN115137681A
Application number: CN202210718162.3A
Authority: CN
Inventors: 唐国林; 叶莉芳
Original assignee: Shenzhen Huangtian Litchi Brand Development Co ltd
Current assignee: Shenzhen Huangtian Litchi Brand Development Co ltd
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2022-10-04

Abstract

The invention discloses a litchi mask and a preparation method thereof, and the litchi mask comprises the following preparation raw materials in parts by weight: 0.1 to 2.5 parts of litchi fruit extract and 0.1 to 2.0 parts of peony extract. The litchi fruit extract and the peony extract in the litchi facial mask both contain active ingredients beneficial to the skin, can permeate into the skin and are beneficial to reducing skin free radicals, so that the skin care effect is improved.

Description

Litchi mask and preparation method thereof

Technical Field

The invention relates to the technical field of skin care products, in particular to a facial mask and a preparation method thereof.

Background

In recent years, with the rapid development of economy, the living standard of people is gradually improved, people pay more attention to skin care, and light skin is pursued by numerous female friends after the birth, so that the development of a novel, safe and efficient skin care product is particularly necessary. The mask is a relatively common skin care product, and the principle of the mask is that essence attached to the mask permeates into skin, so that the skin is improved.

Most of the conventional litchis are used as food and medicinal materials and mainly have the effects of nourishing blood, tonifying spleen, promoting qi circulation and relieving swelling. The whole litchi fruits are rich in litchi polysaccharide, litchi polyphenol, pectin and other active ingredients, which are beneficial to skin, and particularly, litchi polyphenol has a very large antioxidation effect on skin cells. The litchi whole fruit extract is not mature in the field of skin care, so that the litchi whole fruit facial mask has a wide prospect as a novel facial mask in the current market.

It can be seen that the prior art is still in need of improvement and development.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, the present invention is directed to a facial mask and a method for preparing the same, which solves the problems of the prior art.

The technical scheme of the invention is as follows:

the litchi mask is prepared from the following raw materials in parts by weight: 0.1 to 2.5 parts of litchi fruit extract and 0.1 to 2.0 parts of peony extract.

The effect of above-mentioned scheme lies in: the litchi fruit extract and the peony extract in the litchi facial mask both contain active ingredients beneficial to the skin, can permeate into the skin and are beneficial to reducing skin free radicals, so that the skin care effect is improved.

In a further preferred scheme, the litchi mask comprises the following raw materials in parts by weight: 1.5 to 10.0 portions of humectant, 0.01 to 0.20 portion of thickening agent, 0.01 to 0.1 portion of chelating agent, 0.002 to 0.06 portion of solubilizer, 0.01 to 0.5 portion of pH regulator, 0.01 to 0.05 portion of bacteriostatic agent and 0.0001 to 0.005 portion of essence.

The effect of above-mentioned scheme lies in: by adding the components such as the humectant, the thickener, the chelating agent, the solubilizer, the pH regulator, the bacteriostatic agent, the essence and the like, the litchi mask can improve the skin care effect, the product stability and the bacteriostatic property and endow the product with fragrance.

In a further preferred embodiment, the litchi mask, wherein the humectant is selected from one or more of glycerol, propylene glycol, sodium hyaluronate, trehalose, erythritol, butanediol, panthenol, hydroxyethyl urea and 1, 2-hexanediol;

the thickening agent is selected from carbomer, acrylic acid (ester)/C10-30 alkanol acrylate cross-linked polymer, sodium polyacrylate grafted starch and hydroxyethyl cellulose;

the chelating agent is selected from disodium ethylene diamine tetraacetate;

the solubilizer is selected from polyoxyethylene hydrogenated castor oil;

the pH regulator is selected from one or more of triethanolamine, citric acid, potassium hydroxide, lactic acid, sodium hydroxide and amino acid;

the bacteriostatic agent is selected from one or more of nano-silver spherulite crystal aggregates and nano-silver crystals, wherein the particle size of the nano-silver spherulite crystal aggregates is 100-300 nm, and the particle size of the nano-silver crystals is 30-80 nm.

The effect of above-mentioned scheme lies in: the litchi mask has good water locking effect, moisturizing effect and whitening effect, and meanwhile, the litchi mask has broad-spectrum antibacterial effect and fungus killing effect, and bag expansion and deterioration of products in the production and circulation process are reduced.

In a further preferred scheme, the litchi mask is prepared from the following raw materials in parts by weight:

85 to 95 parts of deionized water, 1 to 5 parts of glycerol, 0.5 to 3 parts of propylene glycol, 0.001 to 0.5 part of sodium hyaluronate, 0.01 to 0.2 part of trehalose, 0.02 to 0.5 part of erythritol, 0.05 to 0.1 part of butanediol, 0.01 to 0.20 part of carbomer, 0.01 to 0.5 part of triethanolamine, 0.0001 to 0.005 part of essence, 0.002 to 0.06 part of polyoxyethylene hydrogenated castor oil, 0.01 to 0.1 part of disodium ethylenediamine tetraacetic acid, 1 to 2.5 parts of litchi extract, 0.1 to 2.0 parts of peony extract and 0.01 to 0.05 part of nano-silver crystal.

The effect of above-mentioned scheme lies in: the litchi mask nano silver crystal can not cause damage to skin, can achieve the effects of broad-spectrum antibiosis and fungus killing, and can reduce bag expansion and deterioration of products in the production and circulation processes.

90.0 parts of deionized water, 3.0 parts of glycerol, 2.0 parts of propylene glycol, 0.25 part of sodium hyaluronate, 0.10 part of trehalose, 0.25 part of erythritol, 0.07 part of butanediol, 0.1 part of carbomer, 0.25 part of triethanolamine, 0.002 part of essence, 0.03 part of polyoxyethylene hydrogenated castor oil, 0.05 part of disodium ethylenediamine tetraacetic acid, 2.0 parts of a litchi extract, 1.0 part of a peony extract and 0.02 part of nano silver crystals.

The effect of above-mentioned scheme lies in: the litchi mask has good water locking effect, moisturizing effect, whitening effect, good stability and film forming property. Meanwhile, the litchi facial mask has broad-spectrum antibacterial effect and fungus killing effect, cannot cause damage to skin, and reduces skin allergy.

In a further preferred scheme, the litchi mask further comprises a mask cloth and mask liquid attached to the mask cloth;

wherein, the facial mask liquid comprises the following components in parts by weight: 0.1 to 2.5 parts of litchi fruit extract and 0.1 to 2.0 parts of peony extract.

The effect of above-mentioned scheme lies in: the mask cloth can be uniformly adhered with the mask liquid, has good flexibility, is beneficial to adhering to the skin and improves the skin care effect.

The invention also provides a preparation method of the litchi mask, wherein the preparation method comprises the following steps:

providing a litchi chinensis fruit extract and a peony root extract;

and mixing the litchi fruit extract and the peony extract to obtain the litchi mask.

The effect of above-mentioned scheme lies in: the litchi chinensis facial mask is prepared from litchi chinensis fruit extract and peony root extract, so that the litchi chinensis fruit extract and the peony root extract in the litchi chinensis facial mask both contain active ingredients beneficial to the skin, can permeate into the skin and are beneficial to reducing skin free radicals, and therefore the skin care effect is improved.

In a further preferred embodiment, the preparation method of the litchi facial mask, wherein the litchi fruit extract and the peony extract are mixed to obtain the litchi facial mask, and the preparation method comprises the following steps:

adding ionized water into a reaction kettle, heating to 70-90 ℃, adding glycerol, propylene glycol, butanediol, nano-silver crystals and ethylene diamine tetraacetic acid, homogenizing at the rotating speed of 2000-4000 r/min for 5-10 min, cooling to 50-60 ℃, then adding sodium hyaluronate, trehalose, erythritol and carbomer, homogenizing at the rotating speed of 2000-4000 r/min for 5-8 min, cooling to 25-40 ℃, then adding a polyoxyethylene hydrogenated castor oil mixture dissolved with essence, the litchi fruit extract and the peony extract, and mixing to obtain litchi.

The effect of above-mentioned scheme lies in: by reasonably controlling the adding sequence of the raw materials and reasonably controlling the adding temperature and the homogenizing rotating speed, the litchi facial mask with good skin care effect and stable product can be quickly obtained.

In a further preferred embodiment, the preparation method of the litchi mask, wherein the preparation method of the nano silver crystal comprises the following steps:

dissolving silver nitrate in deionized water at the temperature of 70-90 ℃, adding ethanol, and adjusting the pH value to 9-10 by using sodium hydroxide to obtain a silver nitrate solution;

dissolving ascorbic acid in water to obtain an ascorbic acid solution;

and reacting the silver nitrate solution with the ascorbic acid solution to obtain the nano silver crystal.

The effect of above-mentioned scheme lies in: silver ions are reduced by reasonably controlling the pH value and adopting ascorbic acid, so that the nano silver crystal with uniform particle size can be obtained.

In a further preferred embodiment, the method for preparing a litchi mask, wherein the reacting the silver nitrate solution with the ascorbic acid solution to obtain nano silver crystals, comprises:

reacting the silver nitrate solution with the ascorbic acid solution to obtain a crude nano-silver crystal product;

washing the crude product of the nano-silver crystal with pure water for 3-5 times, washing with 75-90% ethanol for one time, and ball-milling in a zirconium dioxide ball mill for 3-10 hours to obtain ball-milled nano-silver crystals;

and washing, filtering, and drying the ball-milled nano silver crystal to obtain the nano silver crystal with the particle size of 50-80 nm.

The effect of above-mentioned scheme lies in: the purity of the nano silver crystal can be improved by removing impurities from the nano silver crystal crude product, and the particle size of the nano silver crystal can be reduced by performing ball milling on the nano silver crystal crude product, so that the nano silver crystal with uniform particle size can be obtained.

Compared with the prior art, the mask disclosed by the invention contains litchi chinensis fruit extract and peony extract. Wherein, the litchi chinensis fruit extract and the peony extract both contain active ingredients beneficial to the skin, can permeate into the skin and are beneficial to reducing skin free radicals, thereby improving the skin care effect. In addition, the litchi extract and the peony extract also contain substances such as pectin and vitamins which are active ingredients beneficial to the skin and are beneficial to improving the skin care effect.

Drawings

Fig. 1 is a preparation flow chart of the litchi mask in one embodiment of the invention.

Detailed Description

The invention provides a mask and a preparation method thereof, and in order to make the purpose, technical scheme and effect of the invention clearer and clearer, the invention is further described in detail by referring to the attached drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The implementation provides a litchi facial mask, which comprises the following raw materials in parts by weight: 0.1 to 2.5 parts of litchi fruit extract and 0.1 to 2.0 parts of peony extract.

The litchi chinensis fruit extract is a natural active substance extracted from litchi chinensis fruit pulp, and the peony extract is a natural active substance extracted from peony. Specifically, the litchi fruit extract and the litchi fruit extract both contain polyphenol natural compounds and have good skin care effects. The mass concentration of polyphenol natural compounds in the litchi fruit extract and the peony extract is 1.2-2.2mg/mL. The polyphenol natural compounds in the litchi fruit extract comprise litchi polyphenol. The polyphenol natural compounds in the litchi fruit extract comprise peony polyphenol.

The mask of this example contains litchi chinensis fruit extract and peony extract. Wherein, the litchi chinensis fruit extract and the peony extract both contain active ingredients beneficial to the skin, can permeate into the skin and are beneficial to reducing skin free radicals, thereby improving the skin care effect. In addition, the litchi extract and the peony extract also contain substances such as pectin and vitamins which are active ingredients beneficial to the skin and are beneficial to improving the skin care effect.

The litchi chinensis fruit extract and the peony extract can be prepared by adopting a hot water leaching mode, the content of chemical impurities in the litchi chinensis fruit extract and the peony extract can be reduced, and the skin allergy phenomenon can be reduced.

Experiments show that when the litchi fruit extract is 0.1-2.5 parts and the peony extract is 0.1-2.0 parts, active ingredients in the litchi fruit extract and the peony extract can be fully utilized, and the skin care effect is optimal. When the litchi fruit extract is excessive, the active ingredients in the litchi fruit extract cannot be fully utilized, and when the peony extract is excessive, the active ingredients in the peony extract cannot be fully utilized.

In one embodiment, the litchi facial mask is prepared by mixing 0.1-2.5 parts by weight of litchi fruit extract and 0.1-2.0 parts by weight of peony extract. The facial mask can be applied by smearing, and active ingredients in the facial mask can permeate into skin to achieve skin care effect.

In one embodiment, the litchi mask comprises the following components in parts by weight: 0.5 to 1.2 parts of litchi fruit extract and 0.3 to 1.5 parts of peony extract.

In one embodiment, the litchi mask comprises the following components in parts by weight: 0.1 to 2 parts of litchi fruit extract, 0.1 to 2.0 parts of peony extract.

In a further preferred scheme, the litchi mask is prepared from the following raw materials in parts by weight: 1.5 to 10.0 portions of humectant, 0.01 to 0.20 portion of thickening agent, 0.01 to 0.1 portion of chelating agent, 0.002 to 0.06 portion of solubilizer, 0.01 to 0.5 portion of pH regulator, 0.01 to 0.05 portion of bacteriostatic agent and 0.0001 to 0.005 portion of essence.

In order to improve the skin care effect, the product stability and the antibacterial activity of the litchi facial mask and endow the litchi facial mask with fragrance, the litchi facial mask can be added with components such as a humectant, a thickening agent, a chelating agent, a solubilizer, a pH regulator, a bacteriostatic agent, essence and the like.

The humectant has moisture keeping effect, and has high skin caring effect. The thickener can increase viscosity and has an effect of improving film formation. Chelating agents, solubilizers and pH regulators can improve the stability of the product. The bacteriostatic agent can improve the bacteriostatic activity of the product. The essence can impart fragrance to the product.

The water-soluble antibacterial agent is characterized by comprising components such as a humectant, a thickening agent, a chelating agent, a solubilizer, a pH regulator, a bacteriostatic agent, essence and the like. For example, the litchi facial mask is prepared by mixing 0.1-2.5 parts of litchi fruit extract, 0.1-2.0 parts of peony extract and 1.5-10.0 parts of humectant. For another example, the litchi mask is prepared by mixing 0.1-2.5 parts of litchi fruit extract, 0.1-2.0 parts of peony extract and 0.01-0.05 part of bacteriostatic agent.

In one embodiment, the litchi mask comprises one or more humectants selected from glycerol, propylene glycol, sodium hyaluronate, trehalose, erythritol, butylene glycol, panthenol, hydroxyethyl urea, and 1, 2-hexanediol.

The glycerin, the propylene glycol and the butanediol can also be used as solvents in the litchi mask, and the glycerin, the propylene glycol and the butanediol have the functions of locking water and replenishing water. Trehalose, erythritol and sodium hyaluronate have moisturizing and thickening effects.

In one embodiment, the thickening agent is selected from carbomers, acrylates/C10-30 alkanol acrylate crosspolymers, sodium polyacrylate grafted starch, and hydroxyethyl cellulose.

The carbomer is used as a thickening agent and a moisturizing agent and has a certain whitening effect. Acrylic acid (ester)/C10-30 alkanol acrylate cross-linked polymer, sodium polyacrylate grafted starch and hydroxyethyl cellulose have good film forming effect.

Alternatively, the carbomer is carbomer 941.

In one embodiment, the chelating agent is selected from disodium ethylenediaminetetraacetic acid (EDTA-2 Na).

EDTA-2Na can complex impurity metal ions, such as calcium and magnesium ions, doped in the emulsion to achieve the effect of softening water. EDTA-2Na can form a stable complex with most metal ions, and the stability of the complex formed with silver ions is low, and the equilibrium constant is only 10-7. That is, EDTA-2Na may be added to Mg ²⁺ 、Ca ²⁺ Has a large concealing effect on silver ionsThe masking effect is low.

In one embodiment thereof, the solubilizer is selected from polyoxyethylene hydrogenated castor oil (PEG 40-hydrogenated castor oil).

The polyoxyethylene hydrogenated castor oil has good emulsifying and solubilizing effects. Alternatively, the PEG-hydrogenated castor oil is specifically PEG 40-hydrogenated castor oil.

In one embodiment, the pH adjusting agent is selected from one or more of triethanolamine, citric acid, potassium hydroxide, lactic acid, sodium hydroxide, amino acids.

Wherein, the triethanolamine, the citric acid, the potassium hydroxide, the lactic acid and the amino acid reduce the damage to the skin and are beneficial to ensuring the pH stability.

In one embodiment, the bacteriostatic agent is selected from one or more of nano silver spherulite crystal aggregates and nano silver crystals.

The existing facial masks usually contain a plurality of organic components, and the organic components are easy to breed and decay at normal temperature to cause deterioration. In the practical application process, various and excessive organic preservatives are often added into production enterprises to prevent the mask from being rotten and deteriorated. However, since microorganisms are already resistant to existing preservatives, excessive use of preservatives still fails to achieve the goal of inhibiting microbial growth. More seriously, these excessive organic preservatives are applied to the skin, causing allergic effects such as redness and swelling, blistering, etc. to the skin.

In the embodiment, the nano silver spherical crystal agglomerate and the nano silver crystal are used as substitutes of the organic preservative. The nano silver spherulite crystal agglomerate and the nano silver crystal have broad-spectrum antibacterial action and antifungal action, and can effectively inhibit microorganisms with drug resistance.

The high concentration of nano-silver dissociates a large amount of silver ions, contacts the skin and oxidizes proteins in the skin to form black silver protein. In the embodiment, the silver ions dissociated from the nano silver particles with ultra-low concentration are low, the harm effect on skin is almost zero, and the antibacterial and antifungal agent has an inhibiting effect on the proliferation of bacteria and fungi. Tests prove that silver ions separated from trace silver particles are harmless to skin, can replace a conventional organic matter anticorrosion system, and effectively prevent products from swelling and deteriorating in the production and circulation processes. The silver ion concentration dissociated from the nano silver particles is low, the harm effect on the skin is almost zero, and the bacterial and fungal proliferation is inhibited. Tests prove that silver ions dissociated from trace silver particles are harmless to skin, can replace a conventional organic matter preservative system, and effectively prevent products from swelling and deteriorating in the production and circulation processes. Furthermore, EDTA-2Na has a low masking effect on silver ions at this concentration.

Therefore, the mask provided by the embodiment is a litchi mask without an organic preservative, has broad-spectrum antibacterial effect and antifungal effect, and effectively prevents the product from swelling and deteriorating in the production and circulation processes.

Optionally, the particle size of the nano silver spherulite agglomerate is 100-300 nm, and the particle size of the nano silver crystal is 30-80 nm. Namely, a nano silver spherulite agglomerate having a particle size of 100 to 300nm, and a nano silver crystal having a particle size of 30 to 80nm.

When the grain size of the nano silver crystal is 30-80 nm (for example, when the grain size of the nano silver is about 60 nm), the nano silver crystal has strong inhibiting and killing effects on dozens of pathogenic microorganisms such as escherichia coli, gonococcus, chlamydia trachomatis and the like, and cannot generate drug resistance, and the nano silver particles directly enter thalli to be combined with oxygen metabolizing enzyme (-SH), so that the thalli are choked to death through a unique action mechanism, and most of the microorganisms such as bacteria, fungi, mold, spores and the like which are contacted with the nano silver crystal can be killed; meanwhile, the antibacterial agent has comprehensive antibacterial activity on drug-resistant pathogenic bacteria such as drug-resistant escherichia coli, drug-resistant staphylococcus aureus, drug-resistant pseudomonas aeruginosa, streptococcus pyogenes, drug-resistant enterococcus, anaerobic bacteria and the like; for the common bacteria on the surfaces of burns, scalds and wounds, such as staphylococcus aureus Escherichia coli, pseudomonas aeruginosa, candida albicans and other G ⁺ 、G ^- The sexual pathogenic bacteria have the bactericidal effect; it also has strong bactericidal effect on chlamydia trachomatis and gonococcus causing sexually transmitted diseases.

In a further preferred scheme, the preparation raw materials of the litchi mask comprise the following components in parts by weight: 85 to 95 parts of deionized water, 1 to 5 parts of glycerol, 0.5 to 3 parts of propylene glycol, 0.001 to 0.5 part of sodium hyaluronate, 0.01 to 0.2 part of trehalose, 0.02 to 0.5 part of erythritol, 0.05 to 0.1 part of butanediol, 0.01 to 0.20 part of carbomer, 0.01 to 0.5 part of triethanolamine, 0.0001 to 0.005 part of essence, 0.002 to 0.06 part of polyoxyethylene hydrogenated castor oil, 0.01 to 0.1 part of disodium ethylenediamine tetraacetic acid, 1 to 2.5 parts of litchi extract, 0.1 to 2.0 parts of peony extract and 0.01 to 0.05 part of nano silver crystal.

The litchi mask has good skin care effect, antibacterial activity, stability and film forming property, and can effectively prevent the product from swelling and deteriorating in the production and circulation processes.

In one embodiment, the litchi mask comprises the following components in percentage by weight: 85-95% of deionized water, 1-5% of glycerol, 0.5-3% of propylene glycol, 0.001-0.5% of sodium hyaluronate, 0.01-0.2% of trehalose, 0.02-0.5% of erythritol, 0.05-0.1% of butanediol, 0.01-0.20% of carbomer, 0.01-0.5% of triethanolamine, 0.0001-0.005% of essence, 0.002-0.06% of polyoxyethylene hydrogenated castor oil, 0.01-0.1% of EDTA-2Na0, 1-2.5% of litchi extract, 0.1-2.0% of peony extract and 0.01-0.05% of nano silver crystal.

In one embodiment, the litchi mask is prepared from the following raw materials in parts by weight: 90.0 parts of deionized water, 3.0 parts of glycerol, 2.0 parts of propylene glycol, 0.25 part of sodium hyaluronate, 0.10 part of trehalose, 0.25 part of erythritol, 0.07 part of butanediol, 0.1 part of carbomer, 0.25 part of triethanolamine, 0.002 part of essence, 0.03 part of polyoxyethylene hydrogenated castor oil, 0.05 part of disodium ethylenediamine tetraacetate, 2.0 parts of litchi extract, 1.0 part of peony extract and 0.02 part of nano silver crystal.

In one embodiment, the litchi mask is prepared from the following raw materials in parts by weight: 3 parts of glycerol, 1.0 part of propylene glycol, 0.32 part of sodium hyaluronate, 0.5 part of trehalose, 0.05 part of erythritol, 0.06 part of butanediol, 0.20 part of carbomer, 0.01 part of triethanolamine, 0.005 part of essence, 0.052 part of PEG-hydrogenated castor oil, 0.1 part of EDTA-2Na0, 1 part of litchi extract, 0.1 part of peony extract and 0.01 part of nano silver crystal.

In one embodiment, the litchi mask is prepared from the following raw materials in parts by weight: 1.8 parts of glycerol, 2.9 parts of propylene glycol, 0.5 part of sodium hyaluronate, 0.08 part of trehalose, 0.09 part of erythritol, 0.25 part of butanediol, 0.15 part of carbomer, 0.2 part of triethanolamine, 0.0025 part of essence, 0.0185 part of polyoxyethylene hydrogenated castor oil, 0.48 part of EDTA-2Na0.05 part of nano silver crystal, 0.6 part of litchi extract and 1.19 parts of peony extract.

In one embodiment, the litchi facial mask further comprises a mask cloth and a mask solution attached to the mask cloth, wherein the mask solution comprises the following components in parts by weight: 0.1 to 2.5 parts of litchi fruit extract and 0.1 to 2.0 parts of peony extract. Optionally, the facial mask solution comprises: humectant, thickener, chelating agent, solubilizer, pH regulator, bacteriostatic agent, essence, etc.

The mask cloth is made of flexible material and is used for attaching mask liquid. Optionally, the mask cloth is one of non-woven fabric mask cloth, silk mask cloth, fruit fiber mask cloth, biological fiber mask cloth, pre-growth carbon mask cloth and tencel mask cloth. The mask liquid can be uniformly adhered to the mask cloth, and the mask cloth has good flexibility, is beneficial to being attached to the skin and improves the skin care effect.

Facial mask solution, also known as facial mask lotion, is an emulsion containing skin care active ingredients. When the facial mask liquid is used by a user, the skin care active ingredients in the facial mask liquid can permeate into the skin, so that the skin is improved.

The embodiment also provides a preparation method of the litchi mask, which comprises the following steps: providing a litchi fruit extract and a peony extract; and mixing the litchi fruit extract and the peony extract to obtain the litchi mask.

Optionally, the litchi fruit extract and the peony extract are mixed to obtain a litchi facial mask, and the litchi facial mask is applied to the skin to achieve the purpose of skin care.

Therefore, the litchi chinensis fruit extract and the peony extract in the litchi chinensis fruit mask both contain active ingredients beneficial to the skin, can permeate into the skin, and are beneficial to reducing skin free radicals, so that the skin care effect is improved.

Referring to fig. 1, in the preparation method of the litchi facial mask, a litchi fruit extract and a peony extract are mixed to obtain the litchi facial mask, including steps S10 to S30.

S10, adding ionized water into a reaction kettle, heating to 70-90 ℃, adding glycerol, propylene glycol, butanediol, nano silver crystals and ethylene diamine tetraacetic acid, and homogenizing at the rotating speed of 2000-4000 r/min for 5-10 min to obtain a first homogeneous liquid.

The first homogeneous liquid with good stability can be quickly obtained by homogenizing under the condition of higher temperature, and the production efficiency is favorably improved.

S20, cooling the first homogeneous liquid to 50-60 ℃, adding sodium hyaluronate, trehalose, erythritol and carbomer, and homogenizing at the rotating speed of 2000-4000 r/min for 5-8 min to obtain a second homogeneous liquid.

Under the condition of 50-60 ℃, sodium hyaluronate, trehalose, erythritol and carbomer are added, so that the production process is favorably controlled, and the qualification rate of products is improved.

And S30, cooling the second homogeneous solution to 25-40 ℃, and then adding the essence-dissolved polyoxyethylene hydrogenated castor oil mixture, the litchi fruit extract and the peony extract for mixing to obtain the litchi mask.

Under the condition of lower temperature, the polyoxyethylene hydrogenated castor oil, the litchi fruit extract and the peony extract dissolved with essence are added, so that the activity of corresponding active substances caused by overhigh temperature can be avoided.

In a further preferred embodiment, the preparation method of the litchi facial mask, wherein the preparation method of the nano silver crystal, comprises steps S401 to S403.

S401, dissolving silver nitrate in deionized water at the temperature of 70-90 ℃, adding ethanol, and adjusting the pH to 9-10 by using sodium hydroxide to obtain a silver nitrate solution, which is beneficial to ensuring the stability of the silver nitrate solution.

S402, dissolving ascorbic acid in water to obtain an ascorbic acid solution.

Compared with the method of directly adding ascorbic acid into silver nitrate solution, the method of the embodiment firstly dissolves ascorbic acid into water to obtain ascorbic acid solution, and then dissolves ascorbic acid to react with silver nitrate solution, so that nano silver crystals with uniform particle size can be obtained.

And S403, reacting the silver nitrate solution with the ascorbic acid solution to obtain the nano silver crystal.

Silver ions in the silver nitrate solution are reduced by ascorbic acid, and nano silver crystals with uniform particle size can be obtained.

In a further preferred embodiment, the method for preparing a litchi mask, wherein a silver nitrate solution and an ascorbic acid solution are reacted to obtain a nano silver crystal, includes steps S404 to S406.

And S404, reacting the silver nitrate solution with the ascorbic acid solution to obtain a crude product of the nano silver crystal.

Usually, a silver nitrate solution and an ascorbic acid solution react to obtain a product which is a crude product of a nano silver crystal, namely, a certain amount of impurities are attached to the nano silver crystal and need to be subjected to impurity removal treatment.

S405, washing the crude product of the nano-silver crystal with pure water for 3-5 times, washing with 75-90% ethanol for one time, and ball-milling in a zirconium dioxide ball mill for 3-10 hours to obtain the nano-silver crystal.

The crude product of the nano-silver crystal is subjected to impurity removal through pure water washing and ethanol washing, so that inorganic impurities and organic impurities in the crude product of the nano-silver crystal can be effectively removed. And ball-milling the crude product of the nano-silver crystal after impurity removal to adjust the nano-silver crystal, thereby obtaining the ball-milled nano-silver crystal.

S406, washing, suction-filtering and drying the ball-milled nano silver crystal to obtain the nano silver crystal with the particle size of 50-80 nm.

And washing the ball-milled nano silver crystals to remove attached impurities, and drying to obtain the nano silver crystals. The nano silver crystal has uniform grain size, and can improve the bacteriostatic effect.

The technical means of the present invention will be described below by way of specific examples and comparative examples.

Example 1

The litchi mask comprises the following components in percentage by weight: 3.0% of glycerin, 1.0% of propylene glycol, 0.02% of sodium hyaluronate, 0.1% of trehalose, 0.1% of erythritol, 1.0% of butanediol, 0.12% of carbomer 941, 0.1% of triethanolamine, 0.0005% of essence, 0.0045% of polyoxyethylene hydrogenated castor oil, 0.05% of EDTA-2Na, 0.02% of nano-silver, 1.2% of litchi extract, 1.0% of peony extract and the balance of deionized water.

Example 2

The litchi mask comprises the following components in percentage by weight: 1.8% of glycerol, 2.9% of propylene glycol, 0.5% of sodium hyaluronate, 0.08% of trehalose, 0.09% of erythritol, 0.25% of butanediol, 9410.15% of carbomer, 0.2% of triethanolamine, 0.0025% of essence, 0.0185% of polyoxyethylene hydrogenated castor oil, 0.48% of EDTA-2Na0, 0.05% of nano silver, 0.6% of litchi extract, 1.19% of peony extract and the balance of deionized water.

Example 3

The litchi mask comprises the following components in percentage by weight: 2.3% of glycerin, 2.2% of propylene glycol, 0.17% of sodium hyaluronate, 0.15% of trehalose, 0.6% of erythritol, 0.8% of butanediol, 9410.16% of carbomer, 0.35% of triethanolamine, 0.0034% of essence, 0.015% of polyoxyethylene hydrogenated castor oil, 0.20% of EDTA-2Na, 0.044% of nano-silver, 1.0% of litchi extract, 1.0% of peony extract and the balance of deionized water.

Example 4

The litchi mask comprises the following components in percentage by weight: 2.2% of glycerol, 2.1% of propylene glycol, 0.45% of sodium hyaluronate, 0.17% of trehalose, 0.42% of erythritol, 0.25% of butanediol, 0.20% of carbomer 941, 0.1% of triethanolamine, 0.0033% of essence, 0.0207% of polyoxyethylene hydrogenated castor oil, 0.05% of EDTA-2Na0, 0.037% of nano silver, 1.17% of litchi extract, 1.12% of peony extract and the balance of deionized water.

Example 5

The litchi mask comprises the following components in percentage by weight: 3.6% of glycerin, 1.6% of propylene glycol, 0.11% of sodium hyaluronate, 0.5% of trehalose, 0.8% of erythritol, 0.2% of butanediol, 9410.080% of carbomer, 0.2% of triethanolamine, 0.0047% of essence, 0.0530% of polyoxyethylene hydrogenated castor oil, 0.48% of EDTA-2Na, 0.03% of nano-silver, 1.0% of litchi extract, 1.0% of peony extract and the balance of deionized water.

Example 6

The litchi mask comprises the following components in percentage by weight: 2.4% of glycerol, 0.88% of propylene glycol, 0.36% of sodium hyaluronate, 0.19% of trehalose, 0.45% of erythritol, 0.8% of butanediol, 0.18% of carbomer 941, 0.3% of triethanolamine, 0.0029% of essence, 0.038% of polyoxyethylene hydrogenated castor oil, 0.47% of EDTA-2Na0, 0.02% of nano silver, 0.5% of litchi extract, 0.6% of peony extract and the balance of deionized water.

Example 7

The litchi mask comprises the following components in percentage by weight: 3.5% of glycerin, 1.6% of propylene glycol, 0.012% of sodium hyaluronate, 0.18% of trehalose, 0.06% of erythritol, 0.9% of butanediol, 0.11% of carbomer 941, 0.2% of triethanolamine, 0.0041% of essence, 0.0145% of polyoxyethylene hydrogenated castor oil, 0.15% of EDTA-2Na, 0.03% of nano-silver, 1.0% of litchi extract, 0.8% of peony extract and the balance of deionized water.

Example 8

The litchi mask comprises the following components in percentage by weight: 1.5% of glycerin, 2.6% of propylene glycol, 0.019% of sodium hyaluronate, 0.16% of trehalose, 0.26% of erythritol, 0.8% of butanediol, 0.13% of carbomer 941, 0.4% of triethanolamine, 0.0017% of essence, 0.0249% of polyoxyethylene hydrogenated castor oil, 0.20% of EDTA-2Na, 0.03% of nano silver, 0.5% of litchi extract, 0.6% of peony extract and the balance of deionized water.

Comparative example 1

The litchi mask comprises the following components in percentage by weight: 1.5% of glycerin, 2.6% of propylene glycol, 0.019% of sodium hyaluronate, 0.16% of trehalose, 0.26% of erythritol, 0.8% of butanediol, 0.13% of carbomer 941, 0.4% of triethanolamine, 0.0017% of essence, 0.0249% of polyoxyethylene hydrogenated castor oil, 0.20% of EDTA-2Na, 0.5% of nano silver, 0.5% of litchi extract, 0.6% of peony extract and the balance of deionized water.

Comparative example 2

The litchi mask comprises the following components in percentage by weight: 1.5% of glycerol, 2.6% of propylene glycol, 0.019% of sodium hyaluronate, 0.16% of trehalose, 0.26% of erythritol, 0.8% of butanediol, 0.13% of carbomer 941, 0.4% of triethanolamine, 0.0017% of essence, 0.0249% of polyoxyethylene hydrogenated castor oil, 0.20% of EDTA-2Na, 0.15% of nano silver, 0.5% of litchi extract, 0.6% of peony extract and the balance of deionized water.

Comparative example 3

The litchi mask comprises the following components in percentage by weight: 1.5% of glycerin, 2.6% of propylene glycol, 0.019% of sodium hyaluronate, 0.16% of trehalose, 0.26% of erythritol, 0.8% of butanediol, 0.13% of carbomer 941, 0.4% of triethanolamine, 0.0017% of essence, 0.0249% of polyoxyethylene hydrogenated castor oil, 0.20% of EDTA-2Na, 0.25% of nano silver, 0.5% of litchi extract, 0.6% of peony extract and the balance of deionized water.

Comparative example 4

Comparative example 5

The litchi mask comprises the following components in percentage by weight: 1.5% of glycerin, 2.6% of propylene glycol, 0.019% of sodium hyaluronate, 0.16% of trehalose, 0.26% of erythritol, 0.8% of butanediol, 0.13% of carbomer 941, 0.4% of triethanolamine, 0.0017% of essence, 0.0249% of polyoxyethylene hydrogenated castor oil, 0.20% of EDTA-2Na, 1% of nano silver, 0.5% of litchi extract, 0.6% of peony extract and the balance of deionized water.

Comparative example 6

The litchi mask comprises the following components in percentage by weight: 1.5 percent of glycerin, 2.6 percent of propylene glycol, 0.019 percent of sodium hyaluronate, 0.16 percent of trehalose, 0.26 percent of erythritol, 0.8 percent of butanediol, 0.13 percent of carbomer 941, 0.4 percent of triethanolamine, 0.0017 percent of essence, 0.0249% of polyoxyethylene hydrogenated castor oil, 0.20% of EDTA-2Na0.001%, 0.5% of litchi extract, 0.6% of peony extract and the balance of deionized water.

Comparative example 7

The litchi mask comprises the following components in percentage by weight: 1.5% of glycerin, 2.6% of propylene glycol, 0.019% of sodium hyaluronate, 0.16% of trehalose, 0.26% of erythritol, 0.8% of butanediol, 0.13% of carbomer 941, 0.4% of triethanolamine, 0.0017% of essence, 0.0249% of polyoxyethylene hydrogenated castor oil, 0.20% of EDTA-2Na, 0.002% of nano silver, 0.5% of litchi extract, 0.6% of peony extract and the balance of deionized water.

Comparative example 8

The litchi mask comprises the following components in percentage by weight: 1.5% of glycerin, 2.6% of propylene glycol, 0.019% of sodium hyaluronate, 0.16% of trehalose, 0.26% of erythritol, 0.8% of butanediol, 0.13% of carbomer 941, 0.4% of triethanolamine, 0.0017% of essence, 0.0249% of polyoxyethylene hydrogenated castor oil, 0.20% of EDTA-2Na, 0.5% of litchi extract, 0.6% of peony extract and the balance of deionized water.

The contact skin test was conducted for examples 1 to 8 and comparative examples 1 to 8.

The tested population: 50 people with normal skin and no allergic constitution are selected.

The test method comprises the following steps: the facial mask is tested by the method specified in the human skin patch test in 2015 edition of technical Specification for cosmetic safety, the skin reaction of the sample part is observed, and the result is recorded according to the skin reaction grading standard. The test results are shown in table 1.

Table 1 contact skin irritation test results

And (4) test conclusion: the experiments show that the embodiment of the invention with the lower content of nano-silver has little influence on the skin contact irritation.

The in vitro simulated sterilization test method comprises the following steps: respectively inoculating standard bacteria (Pseudomonas aeruginosa, staphylococcus aureus, escherichia coli, propionibacterium acnes) and standard fungi (Candida albicans, aspergillus niger and Penicillium citrinum) into the broth culture solution, and culturing at 37 deg.C for 24 hr to obtain bacterial suspension with certain mass concentration. The test method 1 and the test method 2 are respectively adopted for testing, and the test results are shown in tables 2 and 3.

Test method 1:

the culture flasks were divided into eight groups, and the same amounts of the test substances as in examples 1 to 4 and comparative examples 5 to 8 were added to the culture flasks, respectively; and inoculating 1.0X 10 to eight groups of culture flasks ⁶ cfu/g of standard bacteria, and observing the change of bacteria in each group of culture flasks within 28 days.

Test method 2:

the culture flasks were divided into eight groups, and the same amounts of the test substances as in examples 1 to 4 and comparative examples 5 to 8 were added to the culture flasks, respectively; and inoculating 1.0X 10 to five groups of culture bottles ⁶ cfu/g of standard mold, and observing the change of bacteria in each group of culture flasks within 28 days.

TABLE 2 Standard bacteria test groups

TABLE 3 Standard mould test groups

And (4) test conclusion: from the above tests, examples 1 to 4 and comparative example 5 showed remarkable bactericidal effects; the comparative examples 6 and 7 showed weak bactericidal effect in sharp contrast to the previous examples, and thus it was confirmed that the variable nano silver crystals had bactericidal effect only when they reached a certain concentration. The control example does not add the nano silver crystal, and the nano silver crystal is taken as a control group to fully prove that the nano silver crystal has an inhibiting effect on the proliferation process of bacterial mildew.

It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.

Claims

1. The litchi mask is characterized by comprising the following preparation raw materials in parts by weight: 0.1 to 2.5 parts of litchi fruit extract and 0.1 to 2.0 parts of peony extract.

2. The litchi mask as claimed in claim 1, wherein the litchi mask is prepared from the following raw materials in parts by weight: 1.5 to 10.0 portions of humectant, 0.01 to 0.20 portion of thickening agent, 0.01 to 0.1 portion of chelating agent, 0.002 to 0.06 portion of solubilizer, 0.01 to 0.5 portion of pH regulator, 0.01 to 0.05 portion of bacteriostatic agent and 0.0001 to 0.005 portion of essence.

3. The litchi mask according to claim 2, wherein the moisturizer is one or more selected from the group consisting of glycerin, propylene glycol, sodium hyaluronate, trehalose, erythritol, butylene glycol, panthenol, hydroxyethyl urea, and 1, 2-hexanediol;

the chelating agent is selected from disodium ethylene diamine tetraacetate;

the solubilizer is selected from polyoxyethylene hydrogenated castor oil;

4. The litchi mask as claimed in claim 1, wherein the litchi mask is prepared from the following raw materials in parts by weight:

5. The litchi mask as claimed in claim 1, wherein the litchi mask is prepared from the following raw materials: 90.0 parts of deionized water, 3.0 parts of glycerol, 2.0 parts of propylene glycol, 0.25 part of sodium hyaluronate, 0.10 part of trehalose, 0.25 part of erythritol, 0.07 part of butanediol, 0.1 part of carbomer, 0.25 part of triethanolamine, 0.002 part of essence, 0.03 part of polyoxyethylene hydrogenated castor oil, 0.05 part of disodium ethylenediamine tetraacetate, 2.0 parts of litchi extract, 1.0 part of peony extract and 0.02 part of nano silver crystal.

6. The litchi mask as claimed in claim 1, further comprising a mask cloth, and a mask liquid attached to the mask cloth;

wherein, by weight, the facial mask liquid comprises: 0.1 to 2.5 parts of litchi fruit extract and 0.1 to 2.0 parts of peony extract.

7. A method for preparing the litchi mask as claimed in any one of claims 1 to 6, comprising the steps of:

providing a litchi chinensis fruit extract and a peony root extract;

and mixing the litchi chinensis fruit extract and the peony extract to obtain the litchi chinensis facial mask.

8. The preparation method of the litchi mask pack according to claim 7, wherein the litchi fruit extract and the peony extract are mixed to obtain the litchi mask pack, and the preparation method comprises the following steps:

adding ionized water into a reaction kettle, heating to 70-90 ℃, adding glycerol, propylene glycol, butanediol, nano silver crystals and ethylene diamine tetraacetic acid, homogenizing at the rotating speed of 2000-4000 r/min for 5-10 min, cooling to 50-60 ℃, then adding sodium hyaluronate, trehalose, erythritol and carbomer, homogenizing at the rotating speed of 2000-4000 r/min for 5-8 min, cooling to 25-40 ℃, then adding a polyoxyethylene hydrogenated castor oil mixture dissolved with essence, the litchi fruit extract and the peony extract, and mixing to obtain litchi.

9. The preparation method of the litchi mask as claimed in claim 8, wherein the preparation method of the nano silver crystal comprises:

dissolving silver nitrate in deionized water at the temperature of 70-90 ℃, adding ethanol, and adjusting the pH to 9-10 by using sodium hydroxide to obtain a silver nitrate solution;

dissolving ascorbic acid in water to obtain an ascorbic acid solution;

10. The method for preparing the litchi mask as claimed in claim 9, wherein the reacting the silver nitrate solution and the ascorbic acid solution to obtain nano silver crystals comprises:

washing the crude product of the nano-silver crystal with pure water for 3-5 times, washing with 75% -90% ethanol for one time, and ball-milling in a zirconium dioxide ball mill for 3-10 hours to obtain the ball-milled nano-silver crystal.