CN109172407B

CN109172407B - Application of high-molecular cationic polymer and skin care product prepared from high-molecular cationic polymer

Info

Publication number: CN109172407B
Application number: CN201811248371.6A
Authority: CN
Inventors: 杨利超; 张磊
Original assignee: Shantou Dauni Research Center Of Advanced Science & Technology Co ltd
Current assignee: Shantou Dauni Research Center Of Advanced Science & Technology Co ltd
Priority date: 2018-10-25
Filing date: 2018-10-25
Publication date: 2021-05-14
Anticipated expiration: 2038-10-25
Also published as: CN109172407A

Abstract

The invention relates to an application of a high-molecular cationic polymer and a skin care product prepared by the high-molecular cationic polymer, wherein the high-molecular cationic polymer is a high-molecular cationic conditioning emulsifier which is produced by Qianhao new science and technology research center Limited of Shantou, and has the types of H305 and H308, and the conditioning emulsifier is added into an emulsified skin care product to improve the silky feeling of the skin care product.

Description

Application of high-molecular cationic polymer and skin care product prepared from high-molecular cationic polymer

Technical Field

The invention belongs to the field of skin care products, relates to a new application of a high-molecular cationic polymer, and more particularly relates to an application of the high-molecular cationic polymer and a skin care product prepared from the high-molecular cationic polymer.

Background

The skin care product is a cosmetic which is frequently used by people in daily life, and has the effects of nourishing skin, supplementing moisture required by the skin and making the skin tender and smooth. The most common skin care products are emulsified products such as cream, emulsion and the like, the formulations of which are different from each other, and basically the emulsified products are oil-in-water or water-in-oil emulsified paste formed by a water-soluble component and an oil-soluble component through the action of an emulsifier. The water-soluble component generally includes glycerin, sorbitol, ethylene glycol, etc. having a moisturizing effect; the oil-soluble component generally comprises animal oil and fat, vegetable oil and fat, synthetic oil and fat or mineral oil and fat with moistening effect; considering the irritation factor of skin care products, most of the emulsifier components in the existing skin care products are nonionic surfactants with minimal irritation, and because the irritation of anionic surfactants is far greater than that of nonionic surfactants, the anionic surfactants are basically not adopted, while the irritation of cationic surfactants is far greater than that of anionic surfactants, and the anionic surfactants are excluded from the selection of skin care products emulsifiers.

With the continuous improvement of living standard, people have higher and higher requirements on skin care products, and the skin care products are required to have ideal appearance and moisturizing effect and also focus on the improvement of skin feel, because special skin feel can bring more pleasant use feeling to users, the existing skin care products have light, thick and heavy or watery feel, but smooth feel (like feeling of touching silk) is difficult to achieve.

As known to those skilled in the art, the cation can soften the stratum corneum layer of the skin, and the product added with the cation can provide a relatively smooth feeling for users after being applied to the skin, but the cation is not added in the prior skin care product formula because the common cation has larger irritation and is added into the skin care product to cause skin redness and itching after being used.

The high molecular cationic conditioning emulsifier with the types of H305 and H308 developed and produced by the applicant is a polymer with the molecular weight of 1000 to 500 ten thousand, which is prepared by inverse emulsion polymerization of methacryloyloxyethyl trimethyl ammonium chloride and behenyl acrylate, the polymer is applied to a hair care product containing silicone oil, the silicone oil is emulsified by the polymer, meanwhile, by utilizing the characteristic that the polymer exists in a disordered coil form in an aqueous solution system, oil-soluble component droplets can be wrapped in the polymer to form a firm wrapping system, after the system is frozen for a long time and returns to the room temperature, the flexible coil package can still be well preserved, the hair conditioner containing the silicone oil can be ensured to have better storage stability, thereby making up for the defect of insufficient low-temperature stability of the hair conditioner products in domestic markets (see the introduction of the Chinese patent application with the publication number of CN 105267063A).

Disclosure of Invention

In order to solve the above problems, the present invention provides a novel use of a high molecular cationic polymer.

It is a second object of the present invention to provide a skin care product containing the above high-molecular cationic polymer, which gives a silky feeling to the skin after use.

Specifically, the invention provides an application of a high-molecular cationic polymer, which is characterized in that: the high-molecular cationic polymer is used for emulsifying skin care products and realizes the functions of softening skin cuticle and improving skin silky feeling of the emulsifying skin care products, wherein the high-molecular cationic polymer is a high-molecular cationic conditioning emulsifier which is produced by Qianhao new technology research center Limited company in Shantou and has the model number of H305 and/or H308.

The stratum corneum is also called as stratum corneum in general, and can soften the skin to make the skin feel softer to the touch, and the skin feels silky after being softened to a certain degree. And the H305 and the H308 added into the emulsified skin care product can realize the function of softening the skin cuticle of the skin care product, so that the skin feels silky.

Preferably, in the application of the high molecular cationic polymer, the high molecular cationic polymer accounts for 0.1-10.0% of the weight of the emulsified skin care product, and preferably, the high molecular cationic polymer accounts for 1.0-10.0% of the weight of the emulsified skin care product.

Preferably, in the application of the high molecular cationic polymer, the high molecular cationic polymer is a high molecular cationic conditioning emulsifier which is produced by Qianggao New science and technology research center, Shantou, and is mixed by H305 and H308, and the weight ratio of H305 to H308 is 1 (0.1-10.0).

Specifically, the invention also provides a skin care product containing the high-molecular cationic polymer, which is characterized in that: the skin care product comprises an oil-soluble component, a water-soluble component, an emulsifier and a high-molecular cationic polymer, wherein the high-molecular cationic polymer accounts for 0.1-10.0% of the weight of the skin care product, and is a high-molecular cationic conditioning emulsifier which is produced by Qianhao new technology research center, Inc. of Shantou city and has the model number of H305 and/or H308.

Preferably, in the skin care product containing the high molecular cationic polymer, the high molecular cationic polymer accounts for 1.0-10.0% of the weight of the skin care product.

Preferably, in the skin care product containing the high molecular cationic polymer, the high molecular cationic polymer is a high molecular cationic conditioning emulsifier which is produced by Qianggao New science and technology research center, Shantou, and is mixed with H305 and H308, and the weight ratio of H305 to H308 is 1 (0.1-10.0).

Preferably, in the skin care product containing the high molecular cationic polymer, the oil-soluble component accounts for 5-40% of the weight of the skin care product, the water-soluble component accounts for 2-10% of the weight of the skin care product, and the emulsifier accounts for 0.5-10.0% of the weight of the skin care product.

Preferably, in the skin care product containing the high molecular cationic polymer, the oil-soluble component is one or more of mineral oil and fat, vegetable oil and fat, animal oil and fat or synthetic oil and fat, and the mineral oil and fat is No. 10 or No. 26 white mineral oil, ozokerite, paraffin or vaseline; the vegetable oil is oleum Cocois, oleum ricini, oleum Olivarum, oleum Arachidis Hypogaeae, grapeseed oil, sweet orange seed oil, jojoba seed oil, oleum Armeniacae amarum or soybean oil; the animal oil is horse oil, beef tallow, mink oil or fish oil; the synthetic oil is squalane, lanolin derivative, polysiloxane, fatty acid ester (ester), fatty alcohol, cetyl alcohol, stearyl alcohol, mixed cetyl-stearyl alcohol or fatty acid.

Preferably, in the skin care product containing the high molecular cationic polymer, the water-soluble component comprises one or more of glycerol, sorbitol, propylene glycol, ethylene glycol, behenyl alcohol or glucitol dissolved in deionized water.

Preferably, in the skin care product containing the high molecular cationic polymer, the emulsifier includes a low HLB emulsifier added to the oil-soluble component and a high HLB emulsifier added to the water-soluble component.

Preferably, in the skin care product containing the high molecular cationic polymer, the weight ratio of the low HLB emulsifier to the high HLB emulsifier is 1 (0.1-10.0).

Preferably, in the skin care product containing the high molecular cationic polymer, the low HLB emulsifier is one or more of sorbitan trioleate, polyoxyethylene sorbitol beeswax derivatives, polyoxyethylene sorbitol hexastearate, ethylene glycol fatty acid esters, polyoxyethylene sorbitol beeswax derivatives, propylene glycol fatty acid esters, glyceryl monostearate, glyceryl distearate, polyoxyethylene (2 EO) oleyl ether, sorbitan laurate or polyoxypropylene stearate; the high HLB emulsifier is one or more of polyoxyethylene lauryl ether, polyoxypropylene (5 PO) lanonol ether, polyoxyethylene (5 EO) sorbitan monooleate, polyoxyethylene (20 EO) sorbitan tristearate, polyoxyethylene oxypropylene oleate, polyoxyethylene monopalmitate, polyoxyethylene (10 EO) oleyl ether, polyoxyethylene (10 EO) acetylated lanolin derivative, polyoxyethylene alkylaryl ether, polyoxyethylene castor oil, polyoxyethylene (40 EO) sorbitan monolaurate, polyoxyethylene esters of mixed fatty acids and resin acids, polyoxyethylene (25 EO) lanonol ether, polyoxyethylene oleyl alcohol, or polyoxyethylene (20 EO) sorbitan monopalmitate.

Wherein the high molecular cation conditioning emulsifier and the water-soluble component form a water phase in the preparation process of the skin care product.

Preferably, in the skin care product containing the high molecular cationic polymer, the skin care product further comprises an active ingredient, wherein the active ingredient accounts for 0.1-10% of the weight of the skin care product, and the active ingredient is selected from one or more of plant extracts or animal-extracted SOD (superoxide dismutase), protein and silk peptide hydrolysate.

Preferably, in the skin care product containing the high molecular cationic polymer, the skin care product further comprises a proper amount of preservative and essence, and preferably, the preservative accounts for less than 5% of the weight of the skin care product, and the essence accounts for less than 3% of the weight of the skin care product.

The invention adopts the high molecular cation conditioning emulsifier with the types of H305 and H308, which is a polymer with the molecular weight of 1000 to 500 ten thousand prepared by inverse emulsion polymerization of methacryloyloxyethyl trimethyl ammonium chloride and behenyl acrylate, after the polymer is applied to a skin care product, the effect of softening the horny layer of the skin can be achieved by utilizing the cationic property of the polymer, and the polymer has larger molecular weight and cannot permeate into cells, so that the stimulation effect on the skin is avoided.

After the skin care product added with a certain amount of the high-molecular cationic polymer is smeared on the skin of the face or other parts of the body, the skin is not damaged, and the smeared skin is touched, so that a user can feel the feeling like touching silk, satin and the pleasure of the consumer in the process of using the skin care product is greatly improved.

Detailed Description

The high-molecular cationic conditioning emulsifier with the models of H305 and H308, which is produced by Daqian high-tech research center Limited of Shantou city, is a polymer with the molecular weight of 1000 to 500 ten thousand, which is prepared by inverse emulsion polymerization of methacryloyloxyethyl trimethyl ammonium chloride and behenyl acrylate, the conditioning emulsifier has the appearance color of milky white to faint yellow paste, weak raw material smell, the pH value of 3 to 7 at 25 ℃, and the viscosity of 2 percent deionized water dispersion liquid of more than 5000 centipoise, and can be purchased and obtained on the market.

First, product preparation example

Example 1 (skin-Care product without polymeric cationic Conditioning emulsifiers H308 or H305)

1. Formulation of

2. Preparation of

(1) Adding deionized water into a water-soluble emulsifying pot according to the formula, adding a high HLB emulsifier in a homogeneous state, homogenizing for 1-3 minutes, adding water-soluble component substances, stirring and heating to 85-95 ℃, and completely dissolving to form a water-phase mixture;

(2) adding the emulsifier with low HLB value and all oil-soluble component substances into an oil-soluble emulsifying pot, heating to 85-95 ℃, and stirring to completely dissolve to form an oil-phase mixture;

(3) pumping the oil phase mixture into an emulsifying pot of the water phase mixture under the stirring state, stirring for 5 minutes, homogenizing for about 10 minutes, keeping the temperature and stirring for about 15 minutes, and then cooling;

(4) and cooling to about 50 ℃ to obtain a sample 1.

Example 2 (skin-care product with Daqian high-molecular cationic conditioning emulsifier H308)

1. Formulation of

2. Preparation of

(1) Adding deionized water into a water-soluble emulsifying pot according to the formula, adding a high-molecular cationic polymer and a high-HLB emulsifier in a homogeneous state, homogenizing for 1-3 minutes, adding water-soluble component substances, stirring, heating to 85-95 ℃, and completely dissolving to form a water-phase mixture

(4) and cooling to about 50 ℃ to obtain a sample 2.

Example 3 (skin-care product with Daqian high-molecular cationic conditioning emulsifier H305)

1. Formulation of

2. Preparation of

In the same manner as in example 2, the active substance was added in step (4), to obtain sample 3.

Example 4 (skin-care product with Daqian high-molecular cationic conditioning emulsifier H305)

1. Formulation of

2. Preparation of

The procedure was the same as in example 3, to obtain sample 4.

Example 5 (skin-Care with Daqian high molecular cationic conditioning emulsifier H305)

1. Formulation of

2. Preparation of

The procedure was the same as in example 3, to obtain sample 5.

Example 6 (skin-Care with Daqian polymeric cationic conditioning emulsifiers H305 and H308)

1. Formulation of

2. Preparation of

The procedure was the same as in example 3, to obtain sample 6.

Secondly, testing the stability of the product

Product stability tests were performed on 6 samples of samples 1 to 6 (also referred to as sample nos. 1 to 6) prepared in examples 1 to 6, in the order of the test standards according to the laboratory general test methods:

(1) placing in a 50 deg.C electric oven for 7 days, and observing after recovering room temperature;

(2) storing at-5 deg.C, room temperature, and 50 deg.C for 24 hr, and observing the change at room temperature;

(3) the mixture was stored at-5 ℃ for 7 days, and the stability was observed by returning to room temperature.

The same sample is qualified in product stability through the three testing links, and is continuously carried out for detecting the stabilizing effect of the high-molecular cationic polymer on the skin care product until the sample is unqualified, and the results are as follows:

as can be seen from the above stability test results: (1) under the condition that other conditions are not changed, the stability of the skin care product added with the macromolecular cationic conditioning emulsifier H305 and/or H308 is better than that of the skin care product not added; (2) as the addition amount of H305 and/or H308 is increased, the stability of the product is improved. Therefore, the macromolecular cationic conditioning emulsifier H305 and/or H308 has a certain emulsifying effect, and the using amount of a common emulsifier can be reduced after the macromolecular cationic conditioning emulsifier is added, so that the product can achieve a stable effect more easily.

Thirdly, sensory test of skin care products (15 tested persons):

the 6 skin care samples obtained in examples 1 to 6 were subjected to the following comparative tests:

1. respectively subpackaging the 6 samples into 15ml vials, marking as No. 1-6 samples, and taking 15 silk satins with the same material, wherein the size of each silk satin is 10cm X10 cm;

2. the No. 1-6 samples are smeared on the inner sides of the arms of a subject according to the normal use amount of about 1 g in a dividing manner, then the smeared parts are touched by fingers, compared with the touch silk satin, the samples are graded according to the touch approximation degree, the samples with the same touch are graded by 10 grades, the samples are graded gradually, and the samples with the largest difference are graded to be the smallest. And blind sample distribution is carried out on the tested person in the test process so as to avoid the influence of subjective psychological factors on the test result.

From the above test results it can be seen that: (1) the same formulation, two products of sample 1 (blank) and sample 2, during use, have a completely different feel, the product with the addition of H308, having a distinct silk-like feel; (2) the skin care product added with H305 or H308 or the mixture of the H305 and the H308 changes the silk-like touch with the addition of different amounts, and the silk-like touch becomes more obvious with the addition of the amount.

In the sensory test process, adverse reactions of the skin of the tested person are observed and inquired at any time, and no skin redness or skin itching occurs in any of the tested persons No. 1 to No. 15.

As can be seen from the adverse reactions of the test persons, H305 and H308, although containing cations, have no irritating side effects at all on the skin.

The above are merely specific illustrations of the application of the cationic polymer of the present invention in skin care products, and these examples are not intended to limit the scope of the present invention, and all equivalent implementations or modifications, such as the replacement of the conventional additives in the fields of skin care products, such as emulsifiers, water-soluble components, oil-soluble components, active ingredients, preservatives, perfumes, etc., are included in the scope of the present invention.

Claims

1. A skin care product containing a high molecular cationic polymer is characterized by comprising an oil-soluble component, a water-soluble component, an emulsifier and a high molecular cationic polymer, wherein the high molecular cationic polymer accounts for 8.5 percent of the weight of the skin care product, the high molecular cationic polymer is a high molecular cationic conditioning emulsifier which is produced by Qianhao new science and technology research center Limited company in Shantou, and has the model number of H305, the oil-soluble component accounts for 8 percent of the weight of the skin care product, the water-soluble component accounts for 4.5 percent of the weight of the skin care product, the emulsifier accounts for 1.85 percent of the weight of the skin care product, the emulsifier consists of a low HLB value emulsifier added in the oil-soluble component and a high HLB value emulsifier added in the water-soluble component, the weight ratio of the low HLB value emulsifier to the high HLB value emulsifier is 7:30, and the skin care product further comprises an active component, the active ingredient accounts for 3.5 wt% of the skin care product, and is cortex Cinchonae extract.