CN114366678A

CN114366678A - Liquid skin-care cream and preparation method thereof

Info

Publication number: CN114366678A
Application number: CN202210190168.8A
Authority: CN
Inventors: 李柳波; 曹波; 刘慎忠; 杨菊
Original assignee: Guangdong Bailichen Biotechnology Co ltd
Current assignee: Guangdong Bailichen Biotechnology Co ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-04-19
Anticipated expiration: 2042-02-28
Also published as: CN114366678B

Abstract

The invention discloses a liquid skin-care cream, which comprises a water phase and an oil phase, wherein the water phase comprises 60-80 parts of a solvent, 11-25 parts of a first humectant, 0.5-1 part of a first skin conditioner, 0.1-1 part of a first thickener and 0.5-1 part of a first emulsifier; the oil phase comprises 1-3 parts of a second thickening agent, 0.5-1 part of a second emulsifier and 3-5 parts of an emollient; the first thickener comprises xanthan gum, and the first emulsifier comprises sodium stearyl glutamate; the second thickener comprises one or a combination of cetearyl alcohol, myristyl alcohol and arachidyl alcohol, and the second emulsifier comprises polyglycerol-2 laurate. The liquid skin-care cream provided by the invention is a liquid product, the far spray is essence, the near spray can form cream, the product is squeezed or sprayed out, and then is massaged by hands, the product can be changed into cream from liquid, so that long-time moistening can be provided for the skin, the preparation method is simple, the quality is easy to control, and the industrial production is convenient to realize.

Description

Liquid skin-care cream and preparation method thereof

Technical Field

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

Background

At present, cream skin care products on the market are mainly (O/W) cream or (W/O) cream, and once the form of the product is determined, the product is generally not changed. The cream products have good moisture retention, but in spring and summer or in southern areas with high humidity, the cream products are easy to cause heavy skin feel, and are not very friendly to the skin groups with easy allergy. Current cream type products only provide targeted care to the skin and cannot be tailored to provide refreshing skin care or deep moisturizing skin care depending on the situation. In addition, the existing cream skin care products are generally in a solid form, so that a user cannot feel the change of the state of the cream skin care products in the using process, and the form is single.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide the liquid skin-care cream, the product is in a liquid state, the far spray of the product is essence, and the near spray can form cream; when the skin needs slight moisture retention, the product is sprayed far away, and the product is equivalent to moisture retention spray; when the skin needs deep moisture retention, the product is squeezed or sprayed out and massaged by hands, and the product is changed into cream from liquid state, so that long-time moisture retention can be provided for the skin.

The invention also aims to provide a preparation method of the liquid skin-care cream, which has simple process and easily controlled quality and is convenient for realizing industrial production.

One of the purposes of the invention is realized by adopting the following technical scheme:

a liquid skin cream comprises a water phase and an oil phase, wherein the water phase comprises 60-80 parts of a solvent, 11-25 parts of a first humectant, 0.5-1 part of a first skin conditioner, 0.1-1 part of a first thickener and 0.5-1 part of a first emulsifier; the oil phase comprises 1-3 parts of a second thickening agent, 0.5-1 part of a second emulsifier and 3-5 parts of an emollient; the first thickener comprises xanthan gum, and the first emulsifier comprises sodium stearyl glutamate; the second thickening agent comprises one or any combination of cetearyl alcohol, myristyl alcohol and arachidyl alcohol, and the second emulsifier comprises polyglycerol-2 laurate. More preferably, the second thickener is a mixture of cetearyl alcohol, myristyl alcohol and arachidyl alcohol, and the weight ratio of cetearyl alcohol, myristyl alcohol and arachidyl alcohol may be 1: 1: 1.

the liquid skin-care cream is an O/W white flowing emulsion, phase inversion is realized by compounding polyglycerol-2 laurate and sodium stearyl glutamate, and water transfer cream is realized by adding a small amount of cetyl stearyl alcohol. The product has extremely low oil phase content, has the light feeling of O/W liquid, is gradually converted into W/O cream in the smearing process, and is moistened for a long time.

In the present invention, polyglycerol-2 laurate has an HLB of about 9.4. The critical HLB value tends to form W/O, and the HLB value of the polyglycerol ester emulsifier changes obviously with temperature, so that phase inversion is easy to occur. The formula is matched with a phase inversion promoting auxiliary emulsifier sodium stearyl glutamate, and a small amount of cetostearyl alcohol is added, so that an emulsified body tends to form a W/O structure, but finally exists in a critical O/W state. During application, the temperature rises, water is partially evaporated, the phase volume is changed, the water phase volume is reduced, oil phase transformation is formed, the emulsion structure is changed into a water-emulsion mixed state, and the emulsion exists in a high internal phase W/O structure, so that the process of converting liquid into paste which can be seen by naked eyes is formed. That is, the low viscosity fluid gradually transforms into a paste during application.

Further, the water phase also comprises 0.01-0.1 part of pH regulator, the first humectant comprises 5-12 parts of glycerin, 2-10 parts of butanediol and 2-3 parts of betaine, and the first skin conditioning agent comprises 0.5-1 part of panthenol; the emollient comprises 3-5 parts of caprylic/capric triglyceride.

Further, the water phase consists of the following raw materials in parts by weight: solvent: 60-80 parts of water; first humectant: 5-12 parts of glycerol, 2-10 parts of butanediol and 2-3 parts of betaine; first skin conditioning agent: 0.5-1 part of panthenol; a first thickener: 0.1-1 part of xanthan gum; a first emulsifier: 0.5-1 part of sodium stearyl glutamate; pH regulator: 0.01-0.1 part of citric acid;

the oil phase comprises the following raw materials in parts by weight: a second thickener: 1-3 parts of a mixture of cetearyl alcohol, myristyl alcohol and arachidyl alcohol; a second emulsifier: 0.5-1 part of polyglycerol-2 laurate; and (3) an emollient: 3-5 parts of caprylic/capric triglyceride.

Further, the liquid skin cream also comprises a phase C raw material and a phase E raw material; the phase C raw material comprises 0.5-1 part of second humectant and 0.5-1 part of antioxidant; the phase E raw material comprises 1-3 parts of a third humectant and 1-2 parts of a second skin conditioner.

Further, the phase C material includes a second humectant: 0.5-1 part of 1, 2-hexanediol, antioxidant: 0.5-1 part of p-hydroxyacetophenone; the phase E raw material comprises a third humectant: 1-3 parts of trehalose, a second skin conditioner: 0.5-1 part of nicotinamide and 10.5-1 part of biological carbohydrate gum.

Furthermore, the liquid skin-care cream also comprises a D-phase raw material and an F-phase raw material, wherein the D-phase raw material comprises 0.3-0.5 part of preservative, and the F-phase raw material comprises 0.01-0.1 part of aromatic.

Further, the water phase is marked as an A phase, the oil phase is marked as a B phase, and the water phase also comprises a C phase, a D phase, an E phase and an F phase;

the phase A comprises: solvent: 60-80 parts of water; first humectant: 5-12 parts of glycerol, 2-10 parts of butanediol and 2-3 parts of betaine; first skin conditioning agent: 0.5-1 part of panthenol; a first thickener: 0.1-1 part of xanthan gum; a first emulsifier: 0.5-1 part of sodium stearyl glutamate; pH regulator: 0.01-0.1 part of citric acid;

the phase B comprises: a second thickener: 1-3 parts of a mixture of cetearyl alcohol, myristyl alcohol and arachidyl alcohol; a second emulsifier: 0.5-1 part of polyglycerol-2 laurate; and (3) an emollient: 3-5 parts of caprylic/capric triglyceride;

the phase C comprises: a second humectant: 0.5-1 part of 1, 2-hexanediol, antioxidant: 0.5-1 part of p-hydroxyacetophenone;

the phase D comprises: preservative: 0.3-0.5 part of phenoxyethanol;

the phase E comprises: a third humectant: 1-3 parts of trehalose, a second skin conditioner: 0.5-1 part of nicotinamide and 10.5-1 part of biological carbohydrate gum;

the F phase comprises: aromatic agent: 0.01-0.1 part of essence.

The second purpose of the invention is realized by adopting the following technical scheme:

a preparation method of a liquid skin-care cream comprises the following steps:

adding the water phase raw material into a water phase emulsifying pot, heating to 80-90 ℃, setting the stirring speed at 750-;

adding the oil phase raw materials into an oil phase pot, heating to 75-85 ℃, setting the stirring speed at 750-;

filtering the materials in the water phase emulsifying pot and the oil phase emulsifying pot respectively, pumping into a vacuum emulsifying pot, homogenizing for 8-10min, slowly cooling to 60-65 deg.C, vacuumizing for defoaming, and stirring;

if the raw materials of the C phase, the D phase, the E phase and the F phase exist, the method also comprises the following steps:

before vacuumizing and defoaming, adding a pre-dissolved C-phase raw material, then vacuumizing and defoaming, and stirring uniformly;

cooling to 50-45 deg.C under stirring, adding D phase raw material, and stirring;

stirring and cooling to 45-40 ℃, and adding the pre-dissolved E-phase raw material;

cooling to 41-38 deg.C under stirring, adding the F phase raw material, and stirring.

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

(1) the liquid skin-care cream provided by the invention is a white liquid product, the texture transformation technology is improved, the palm is gently kneaded, and water can be dissolved into the cream, such as water is clear and moist, such as cream nourishing. If the product is contained in a spray bottle and is sprayed after being gently shaken before use, the product is sprayed far to be essence liquid, and the product can be frosted when being sprayed near; when the skin needs slight moisture retention, the product is sprayed far away, and the product is equivalent to moisture retention spray; when the skin needs deep moisture retention, the product is squeezed or sprayed out and then massaged by hands, the product is changed into cream from liquid, and the cream can provide long-time moisture retention for the skin, is not greasy and has good skin friendliness.

(2) The liquid skin-care cream provided by the invention overcomes the defects of simple formula, less oil phase, extreme thinness and capability of forming stable flowing emulsion by special technical treatment (unique formula), and can be changed from O/W to W/O and from liquid to paste by smearing, and is changed from lightness to moistening.

(3) The liquid skin-care cream provided by the invention is prepared by matching specific cosmetic raw materials with a specific preparation process, can meet the requirements of consumers on effective moisturizing and skin-care, and can meet the novel consumption experience of the consumers.

Drawings

FIG. 1 is a graph showing the spraying effect of a liquid skin cream according to example 3 of the present invention;

FIG. 2 is a diagram illustrating an initial state of a liquid skin cream according to example 3 of the present invention;

FIG. 3 is a graph showing the effect of converting a liquid skin cream provided in example 3 of the present invention into a cream after application.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict. The raw materials, equipments and the like used in the following examples are commercially available unless otherwise specified.

Examples 1 to 3

A liquid skin care cream is prepared from phase A (water phase), phase B (oil phase), phase C, phase D, phase E and phase F as raw materials, and the specific formula is shown in table 1 below.

Table 1 examples 1-3 formula of liquid skin cream

The liquid skin cream of examples 1-3 was prepared as follows:

adding the phase A raw material into a water phase emulsifying pot, heating to 85 ℃, setting the stirring speed at 800 revolutions per minute until no particles are completely dissolved, then homogenizing at the rotating speed of 1500 revolutions per minute for 4 minutes, and stopping homogenizing for later use;

adding the phase B raw material into an oil phase pot, heating to 80 ℃, setting the stirring speed at 800 revolutions per minute until no particles are completely dissolved, homogenizing at the rotating speed of 1500 revolutions per minute for 4 minutes, and stopping homogenizing for later use;

filtering the materials in the water phase emulsifying pot and the oil phase emulsifying pot respectively, pumping into a vacuum emulsifying pot, homogenizing for 9min, slowly cooling to 62 deg.C, adding pre-dissolved C phase raw material, vacuum defoaming, and stirring;

cooling to 45 deg.C under stirring, adding D phase raw material, and stirring;

stirring and cooling to 42 ℃, and adding the pre-dissolved E-phase raw material;

stirring and cooling to 40 ℃, adding the F-phase raw material, and stirring uniformly;

discharging after the detection is qualified, and filling to obtain the product.

Comparative example 1

Comparative example 1 differs from example 3 in that: the emulsifier in phase B was replaced with tetraethylene glycol monolaurate (HLB value about 9.4), and the rest was the same as in example 3.

Comparative example 2

Comparative example 2 differs from example 3 in that: the emulsifier in phase B was replaced with polyoxyethylene lauryl ether (HLB value about 9.5), and the procedure was as in example 3.

Comparative example 3

Comparative example 2 differs from example 3 in that: the emulsifier in phase a was replaced with sodium stearate and the rest was the same as in example 3.

Comparative example 4

Comparative example 4 differs from example 3 in that the thickener in the phase B material is a mixture of myristyl alcohol and arachidyl alcohol, but does not include cetostearyl alcohol, and is otherwise the same as in example 3.

Comparative example 5

Comparative example 4 differs from example 3 in that the thickener in the phase a material is methylhydroxyethyl cellulose, and is otherwise the same as in example 3.

Effect verification

Appearance description

Samples were obtained according to the formulations and preparation methods of examples 1 to 3 and comparative examples 1 to 4, respectively, and the obtained samples were subjected to appearance evaluation and tested for whether or not the samples could achieve state transition, with the results shown in table 2 below.

TABLE 2 appearance and test results recording sheet

The initial state of the liquid skin-care cream obtained in example 3 is shown in fig. 2, the spraying effect is shown in fig. 1, the effect of the liquid skin-care cream converted into cream after being applied is shown in fig. 3, and the conditions of examples 1-2 are similar to those of example 3 and are not repeated herein.

From the records in table 2, the embodiment of the present invention reasonably controls the formulation combination, precisely selects the components such as the emulsifier, the thickener, etc., reasonably controls the dosage, and simultaneously adopts a special process to obtain a novel product which can be changed from O/W to W/O by smearing and from liquid to paste.

Second, the volunteers try

80 female volunteers with healthy facial skin are selected, the age is distributed between 25 and 30 years, the female volunteers are averagely divided into 8 groups of 10 volunteers, and the liquid skin-care cream samples of the examples 1 to 3 are respectively tried on each group of volunteers. The cream is applied once in the morning and at night every day, is tried for a week, is sprayed into hands during testing, is smeared into cream and is evenly smeared on facial skin. After 1 week of trial, the volunteers scored the sample moistening degree, stimulation sensitivity and comfort in a range of 1-10 points, the higher the score, the better the evaluation, the average value of each group of volunteers was calculated, and the average value was recorded in table 3.

The test indexes are defined as follows:

moistening degree: moistening and keeping moisture without drying;

stimulus sensitivity: no irritation, no discomfort and no allergy;

comfort: is not greasy, sticky, dry, tight, and skin friendly.

TABLE 3 sensory test results recording sheet

As can be seen from the records in table 3, the volunteers have a higher evaluation on the liquid skin cream of the embodiment of the present invention, while the formula of the liquid skin cream of the comparative example has changed and the evaluation is lower, which indicates that the liquid skin cream provided by the embodiment of the present invention has a reasonable formula, can provide a more perfect use experience for users, and is moisturizing, non-greasy, and good in skin-friendly property.

3. Evaluation of moisturizing Effect

30 female volunteers with healthy skin are selected, the age is distributed between 25 and 28 years, the female volunteers are averagely divided into 3 groups, 10 volunteers in each group are selected, and the liquid skin-care cream samples in the examples 1 to 3 are respectively tried on each group of volunteers. After the same cleaning steps are carried out on the facial skin of the volunteer, the same skin lotion is sprayed, then the samples of the examples 1-3 are tried, the samples are sprayed into the hands to be smeared into cream during the test, then the cream is evenly smeared on the facial skin, and the moisture content of the facial skin is measured by a skin moisture meter respectively after the samples are tried for 0h, 1h, 2h, 3h and 4 h. The test results were averaged as shown in table 4 below.

Table 4 moisture retention results table

Group of	After 0h of use	After 1h of use	After 2 hours of use	After 3 hours of use	After 4 hours of use
						Example 1	60.3％	53.2％	46.7％	43.9％	38.3％
Example 2	62.2％	54.4％	45.1％	42.7％	36.6％
						Example 3	65.7％	57.5％	48.2％	44.6％	40.5％

As can be seen from the record in table 4, the liquid skin cream provided by the embodiment of the present invention has good moisturizing effect, and can provide long-term moisturizing effect to the skin.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. The liquid skin-care cream is characterized by comprising a water phase and an oil phase, wherein the water phase comprises 60-80 parts of a solvent, 11-25 parts of a first moisturizing agent, 0.5-1 part of a first skin conditioning agent, 0.1-1 part of a first thickening agent and 0.5-1 part of a first emulsifying agent; the oil phase comprises 1-3 parts of a second thickening agent, 0.5-1 part of a second emulsifier and 3-5 parts of an emollient; the first thickener comprises xanthan gum, and the first emulsifier comprises sodium stearyl glutamate; the second thickening agent comprises one or any combination of cetearyl alcohol, myristyl alcohol and arachidyl alcohol, and the second emulsifier comprises polyglycerol-2 laurate.

2. The liquid skin cream of claim 1, wherein the aqueous phase further comprises pH adjusting agent 0.01-0.1 parts, the first moisturizing agent comprises glycerin 5-12 parts, butylene glycol 2-10 parts, betaine 2-3 parts, the first skin conditioning agent comprises panthenol 0.5-1 parts; the emollient comprises 3-5 parts of caprylic/capric triglyceride.

3. The liquid skin cream of claim 1, wherein the aqueous phase comprises the following materials in parts by weight: solvent: 60-80 parts of water; first humectant: 5-12 parts of glycerol, 2-10 parts of butanediol and 2-3 parts of betaine; first skin conditioning agent: 0.5-1 part of panthenol; a first thickener: 0.1-1 part of xanthan gum; a first emulsifier: 0.5-1 part of sodium stearyl glutamate; pH regulator: 0.01-0.1 part of citric acid;

4. The liquid skin cream of claim 1, further comprising phase C materials and phase E materials; the phase C raw material comprises 0.5-1 part of second humectant and 0.5-1 part of antioxidant; the phase E raw material comprises 1-3 parts of a third humectant and 1-2 parts of a second skin conditioner.

5. The liquid skin cream of claim 4, wherein the phase C material comprises a second humectant: 0.5-1 part of 1, 2-hexanediol, antioxidant: 0.5-1 part of p-hydroxyacetophenone; the phase E raw material comprises a third humectant: 1-3 parts of trehalose, a second skin conditioner: 0.5-1 part of nicotinamide and 10.5-1 part of biological carbohydrate gum.

6. The liquid skin cream of claim 1, further comprising phase D material and phase F material, wherein the phase D material comprises 0.3 to 0.5 parts of preservative and the phase F material comprises 0.01 to 0.1 parts of fragrance.

7. The liquid skin cream according to claim 1, wherein the aqueous phase is designated as phase a and the oil phase is designated as phase B, and further comprises phase C, phase D, phase E and phase F;

the phase D comprises: preservative: 0.3-0.5 part of phenoxyethanol;

the F phase comprises: aromatic agent: 0.01-0.1 part of essence.

8. The liquid skin cream of claim 7, wherein phase a comprises: solvent: 70 parts of water; first humectant: 8 parts of glycerol, 5 parts of butanediol and 2.5 parts of betaine; first skin conditioning agent: 0.8 part of panthenol; a first thickener: 0.6 part of xanthan gum; a first emulsifier: 0.7 part of sodium stearyl glutamate; pH regulator: 0.05 part of citric acid;

the phase B comprises: a second thickener: 2 parts of a mixture of cetearyl alcohol, myristyl alcohol and arachidyl alcohol; a second emulsifier: 0.7 part of polyglycerol-2 laurate; and (3) an emollient: 3.5 parts of caprylic/capric triglyceride;

the phase C comprises: a second humectant: 0.8 part of 1, 2-hexanediol, antioxidant: 0.7 part of p-hydroxyacetophenone;

the phase D comprises: preservative: 0.3 part of phenoxyethanol;

the phase E comprises: a third humectant: 2 parts of trehalose, a second skin conditioner: 0.7 part of nicotinamide and 10.7 parts of biological carbohydrate gum;

the F phase comprises: aromatic agent: 0.05 part of essence.

9. A method of preparing a liquid skin cream according to any one of claims 1 to 8, comprising the steps of:

10. The method of preparing a liquid skin cream according to claim 9, wherein the aqueous phase is designated as phase a and the oil phase is designated as phase B, further comprising phase C, phase D, phase E and phase F; the method comprises the following steps:

cooling to 45 deg.C under stirring, adding D phase raw material, and stirring;