CN114224751A

CN114224751A - Double-layer skin lotion and preparation method thereof

Info

Publication number: CN114224751A
Application number: CN202111604492.1A
Authority: CN
Inventors: 黄振振; 陈小花; 张欢
Original assignee: Guangdong Bailichen Biotechnology Co ltd
Current assignee: Guangdong Bailichen Biotechnology Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-03-25

Abstract

The invention discloses a double-layer skin lotion and a preparation method thereof, wherein the double-layer skin lotion comprises a phase A: 10-18 parts of an emollient, and 0.2-0.5 part of a solubilizer; emollients including cyclopentadimethylsiloxane/cyclohexasiloxane complex and cetyl ethylhexanoate; the solubilizer is a compound of PPG-26-butanol polyether-26, PEG-40 hydrogenated castor oil and water; phase B: 82-90 parts of a solvent; 0.03-0.1 part of chelating agent; 0.05-0.1 part of thickening agent; 4.5-11 parts of a humectant; 0.5-1 part of antioxidant; and C phase: 0.5-3.5 parts of a skin conditioner; 0.2-1 part of aromatic. The upper layer of the skin care water contains white emulsion, the lower layer is essence with transparent appearance, the moisturizing effect is good, novel consumption experience of consumers can be met, the production process is simple, and industrialization is easy to realize.

Description

Double-layer skin lotion and preparation method thereof

Technical Field

The invention relates to the technical field of skin care products, in particular to double-layer skin lotion and a preparation method thereof.

Background

The skin covers the whole body, can prevent various tissues and organs in the body from being invaded by the outside, plays an important barrier role, and is important for keeping the stability of the environment in the human body. The skin is also involved in the metabolism of the human body. Preventing the moisture of the skin from evaporating and moistening the skin are important links for moisturizing the skin. In order to meet the moisturizing requirements of various crowds, various moisturizing skin care products including moisturizing facial cleanser, moisturizing skin care water, moisturizing emulsion, moisturizing essence, moisturizing cream, moisturizing facial mask and the like appear on the market. The moisturizing lotion is the first moisturizing product after face cleaning, and can directly influence the absorption of active ingredients of subsequent skin care products when being used as a basic product for skin care.

However, the moisturizing skin moisturizers in the current market mostly adopt a single layer of transparent moisturizing lotion or milky moisturizing lotion, and the moisturizing effect is poor. Particularly, for skin groups such as allergic skin (typical urban skin) or northern areas with low humidity in autumn and winter, the skin care lotion containing only transparent essence lotion or milky moisturizing lotion cannot meet the moisturizing requirement of consumers. The double-layer essence lotion containing the milk and the essence has better skin-friendly property and better moisturizing effect, but the double-layer essence lotion is not available in the market.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide the double-layer skin care lotion, wherein the upper layer of the skin care lotion contains white emulsion, and the lower layer of the skin care lotion is essence with transparent appearance, so that the skin care lotion has good moisturizing effect and can meet the novel consumption experience of consumers.

The invention also aims to provide a preparation method of the double-layer skin lotion, which has simple process and is easy to realize industrialization.

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

a double-layer skin lotion comprises an A phase, a B phase and a C phase, wherein the A phase, the B phase and the C phase comprise the following components in parts by weight:

phase A: 10-18 parts of an emollient, and 0.2-0.5 part of a solubilizer; the emollient comprises cyclopentadimethylsiloxane/cyclohexasiloxane complex and cetyl ethylhexanoate; the solubilizer is a compound of PPG-26-butanol polyether-26, PEG-40 hydrogenated castor oil and water;

phase B: 82-90 parts of a solvent; 0.03-0.1 part of chelating agent; 0.05-0.1 part of thickening agent; 4.5-11 parts of a humectant; 0.5-1 part of antioxidant; the humectant comprises propylene glycol, butylene glycol and 1, 2-hexanediol;

and C phase: 0.5-3.5 parts of a skin conditioner; 0.2-1 part of aromatic; the skin conditioner comprises 1, 2-pentanediol, nicotinamide, ascorbic acid polypeptide and a tremella extract; the aromatic agent comprises lemon peel oil and bitter orange flower oil.

Further, the solvent is water; the chelating agent is EDTA disodium; the thickening agent is sodium polyacrylate; the antioxidant is hydroxyacetophenone.

Further, the emollient comprises 8-10 parts of cyclopentadimethylsiloxane/cyclohexasiloxane compound, 2-8 parts of cetyl ethylhexanoate; the humectant comprises 2-8 parts of propylene glycol, 2-5 parts of butanediol and 0.2-1 part of 1, 2-hexanediol; the skin conditioner comprises 0.3-1 part of 1, 2-pentanediol, 0.1-1 part of nicotinamide, 0.1-1 part of ascorbic acid polypeptide and 0.01-1 part of tremella extract; the aromatic comprises 0.1-1 part of lemon peel oil and 0.1-1 part of bitter orange flower oil.

Further, the emollient comprises 8.5-9.5 parts of cyclopentadimethylsiloxane/cyclohexasiloxane compound, 3-7 parts of cetyl ethylhexanoate; the humectant comprises 3-7 parts of propylene glycol, 3-4 parts of butanediol and 0.3-0.8 part of 1, 2-hexanediol; the skin conditioner comprises 0.5-0.7 part of 1, 2-pentanediol, 0.2-0.8 part of nicotinamide, 0.2-0.8 part of ascorbic acid polypeptide and 0.02-0.7 part of tremella extract; the aromatic comprises 0.3-0.8 part of lemon peel oil and 0.3-0.8 part of bitter orange flower oil.

Further, the double-layer skin lotion comprises the following components in parts by weight:

phase A: 12-16 parts of an emollient, and 0.2-0.4 part of a solubilizer;

phase B: 85-90 parts of a solvent; 0.05-0.1 part of chelating agent; 0.05-0.1 part of thickening agent; 5-10 parts of a humectant; 0.5-0.8 part of antioxidant;

and C phase: 0.5-3 parts of a skin conditioner; 0.3-0.8 part of aromatic.

Further, the double-layer skin lotion comprises an A phase, a B phase and a C phase, wherein the A phase, the B phase and the C phase comprise the following components in parts by weight:

phase A: 8 parts of cyclopentasiloxane/cyclohexasiloxane composite, 2 parts of cetyl ethylhexanoate, 0.2 part of PPG-26-butanol polyether-26 composite, PEG-40 hydrogenated castor oil and water;

phase B: 82 parts of water, 0.03 part of EDTA disodium, 0.05 part of sodium polyacrylate, 2 parts of propylene glycol, 2 parts of butanediol, 0.2 part of 1, 2-hexanediol and 0.5 part of hydroxyacetophenone;

and C phase: 0.3 part of 1, 2-pentanediol, 0.1 part of nicotinamide, 0.1 part of ascorbic acid polypeptide, 0.01 part of tremella extract, 0.1 part of lemon peel oil and 0.1 part of bitter orange flower oil.

phase A: 10 parts of cyclopentasiloxane/cyclohexasiloxane compound, 8 parts of cetyl ethylhexanoate, 0.5 part of compound of PPG-26-butanol polyether-26, PEG-40 hydrogenated castor oil and water;

phase B: 90 parts of water, 0.1 part of EDTA disodium, 0.1 part of sodium polyacrylate, 8 parts of propylene glycol, 5 parts of butanediol, 1 part of 1, 2-hexanediol and 1 part of hydroxyacetophenone;

and C phase: 1, 2-pentanediol 1 part, nicotinamide 1 part, ascorbic acid polypeptide 1 part, tremella extract 0.1 part, lemon peel oil 1 part, and bitter orange flower oil 1 part.

Further, the weight ratio of the phase A to the phase B is (0.09-0.25): 1, the solubilizer accounts for 0.01 to 0.05 of the weight of the phase A. The proportion of the water phase and the oil phase and the proportion of the solubilizer can influence the stability of the emulsifying system, and the solubilizer can obtain a stable emulsifying system within a wider HLB value (14-18) within the dosage range.

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

a preparation method of double-layer skin lotion comprises the following steps:

1) adding the solubilizer and the emollient in the phase A into an oil phase emulsifying pot, heating, stirring until the solubilizer and the emollient are completely dissolved, and homogenizing to obtain an oil phase material;

2) adding the solvent, a part of the humectant, the chelating agent, the thickening agent in the phase B and a part of the skin conditioning agent in the phase C into a water phase pot, heating, stirring until the solvents, a part of the humectant, the chelating agent, the thickening agent and the skin conditioning agent in the phase C are completely dissolved, and homogenizing to obtain a water phase material;

3) pumping the water phase material and the oil phase material into a vacuum emulsifying pot in sequence, homogenizing, cooling, adding an antioxidant dissolved in the other part of the humectant in advance, vacuumizing, defoaming and stirring uniformly;

4) stirring and cooling, adding the aromatic and the other part of skin conditioner in the phase C, and stirring uniformly to obtain the final product.

Further, the preparation method of the double-layer skin lotion comprises the following steps:

1) adding the solubilizer and the emollient in the phase A into an oil phase emulsifying pot, heating to 75-85 ℃, setting the stirring speed at 700-;

2) adding the solvent in the phase B, propylene glycol and butanediol in the humectant, the chelating agent, the thickener and the tremella extract in the phase C skin conditioner into a water phase pot, heating to 80-90 ℃, setting the stirring speed at 700-;

3) pumping the water phase material and the oil phase material into a vacuum emulsifying pot in sequence, homogenizing for 8-10 minutes, cooling to 60-65 ℃, adding an antioxidant dissolved in humectant 1, 2-hexanediol in advance, vacuumizing, defoaming, and stirring uniformly;

4) cooling to 45 deg.C, adding the aromatic and the rest skin conditioner in phase C, and stirring;

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

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

(1) the double-layer skin lotion provided by the invention has the advantages that the upper layer is an emulsion oil layer, the lower layer is an essence water layer, the emulsion can be uniformly present between the water layers all the time in the product using time, and the emulsion oil layer is uniformly distributed between the water layers by thickening the suspension composition (solubilizer and thickener) through slight shaking before use. Moreover, the consumer can adjust the ratio of water/oil in the formula by moderate shaking/stirring, thereby obtaining special appearance, and the product is suitable for infant care and can act on the eye periphery, and is qualified hypoallergenic substance. The double-layer skin care water can moisturize and moisten the skin for a long time, can meet the effective moisturizing and skin care requirements of consumers, and can also meet the novel consumption experience of the consumers.

(2) According to the double-layer skin care lotion provided by the invention, the water phase and the oil phase are not completely mixed and solubilized, so that the oil can be effectively brought to the surface layer of the skin, and the moisture retention of the skin is protected; meanwhile, the skin care product has high hydration, and can nourish the skin cuticle, so that the skin can be effectively nourished and moistened for a long time.

(3) The double-layer skin lotion provided by the invention has reasonable formula components, adopts specific emollient and solubilizer and is assisted by thickener, and the oil phase water is unsaturated and emulsified, so that the oil phase floats upwards after emulsification, thereby obtaining special appearance and giving people novel visual effect. In addition, the formula adopts specific emollient, solubilizer, humectant, skin conditioner and aromatic, and other auxiliary components, so that the product is similar to the sebum structure of skin, namely, the product can form a skin-friendly structure to have excellent skin-friendly performance, and the permeability of the skin surface layer is enhanced, so that skin care water is better absorbed, and the optimal moisturizing effect is achieved.

(4) The double-layer skin lotion provided by the invention has effective moisturizing components in each phase, and the components in each phase are reasonably matched, particularly, the solubilizer and the thickening agent are skillfully matched, so that the release speed of the moisturizing components can be slowed down, and the skin nutritional components can be kept for a long time.

(5) The preparation method of the double-layer skin moisturizer provided by the invention is simple in process, simple and convenient to operate and suitable for industrial production.

Drawings

FIG. 1 is an appearance diagram of a state of a double skin care moisture layer provided in example 1 of the present invention;

fig. 2 is an external view of a double skin lotion provided in example 2 of the present invention after shaking.

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.

phase A: 10-18 parts of an emollient, and 0.2-0.5 part of a solubilizer; emollients including cyclopentadimethylsiloxane/cyclohexasiloxane complex and cetyl ethylhexanoate; the solubilizer is a compound of PPG-26-butanol polyether-26, PEG-40 hydrogenated castor oil and water;

phase B: 82-90 parts of a solvent; 0.03-0.1 part of chelating agent; 0.05-0.1 part of thickening agent; 4.5-11 parts of a humectant; 0.5-1 part of antioxidant; the solvent is water; the chelating agent is EDTA disodium; the thickening agent is sodium polyacrylate; the humectant comprises propylene glycol, butylene glycol and 1, 2-hexanediol; the antioxidant is hydroxyacetophenone;

and C phase: 0.5-3.5 parts of a skin conditioner; 0.2-1 part of aromatic; the skin conditioner comprises 1, 2-pentanediol, nicotinamide, ascorbic acid polypeptide and tremella extract; the aromatic agent comprises lemon peel oil and bitter orange flower oil.

The solubilizer is a compound of PPG-26-butanol polyether-26, PEG-40 hydrogenated castor oil and water, which is an amphoteric compound having both hydrophilic group and lipophilic group, and is a surfactant with high HLB value (14-18). According to the invention, (PPG-26-butanol polyether-26/PEG-40 hydrogenated castor oil/water) is used as a raw material to perform a solubilizing or micro-emulsifying effect in a formula system, the micro-emulsion systems are thermodynamically stable, and the micro-emulsion system can return to the original state after being frozen and then returns to the room temperature, which shows that the micro-emulsion system has long-term stability.

The thickening agent is sodium polyacrylate which is a high molecular compound with hydrophilic and hydrophobic groups and can be slowly dissolved in water to form extremely viscous transparent liquid. According to the invention, PPG-26-butanol polyether-26/PEG-40 hydrogenated castor oil/water and sodium polyacrylate are compounded to form a specific thickening suspension composition, so that emulsified oil can be uniformly distributed between water layers to form a microemulsion system with very high stability, the release speed of moisturizing components is slowed, and skin nutritional components can be kept for a long time.

The humectant adopts the matching of propylene glycol, butanediol and 1, 2-hexanediol, is skin-friendly and has good moisturizing effect; the compound of the 1, 2-pentanediol, the nicotinamide, the ascorbic acid polypeptide, the tremella extract, the lemon peel oil and the bitter orange flower oil can further improve the moisturizing effect, and the components are compounded with the rest components in the formula to form a skin-friendly sebum structure, so that the product has excellent skin-friendly performance, the permeability of the skin surface layer is enhanced, the absorption capacity of the skin is improved, and the product achieves the optimal moisturizing effect.

As a further embodiment, the weight ratio of the a phase to the B phase is (0.09 to 0.25): 1, the solubilizer accounts for 0.01 to 0.05 of the weight of the phase A. The proportion of the water phase and the oil phase and the proportion of the solubilizer can influence the stability of the emulsifying system, and the solubilizer can obtain a stable emulsifying system within a wider HLB value (14-18) within the dosage range.

Examples 1 to 5

A double-layer skin care lotion is prepared from cyclopentasiloxane/cyclohexasiloxane complex, cetyl ethylhexanoate, PPG-26-butyether-26/PEG-40 hydrogenated castor oil/water complex, water, disodium EDTA, sodium polyacrylate, propylene glycol, butylene glycol, 1, 2-hexanediol, hydroxyacetophenone, 1, 2-pentanediol, nicotinamide, ascorbic acid polypeptide, a tremella extract, lemon peel oil and bitter orange flower oil, and the specific formula is shown in Table 1 below.

Table 1 formulation of skin lotions of examples 1 to 5

The two-layer skin lotions of examples 1-5 were prepared according to the following method:

1) adding the solubilizer and the emollient in the phase A into an oil phase emulsifying pot, heating to 80 ℃, setting the stirring speed to be 800 revolutions per minute, stirring until no particles are completely dissolved, setting the stirring speed to be 1500 revolutions per minute, and homogenizing for 4 minutes to obtain an oil phase material;

2) adding the solvent in the phase B, propylene glycol and butanediol in the humectant, the chelating agent, the thickener and the tremella extract in the phase C skin conditioner into a water phase pot, heating to 85 ℃, setting the stirring speed to be 800 revolutions per minute, stirring until no particles are completely dissolved, setting the stirring speed to be 1500 revolutions per minute, and homogenizing for 4 minutes to obtain a water phase material;

3) filtering the water phase material and the oil phase material, pumping into a vacuum emulsifying pot, homogenizing for 8-10 min, cooling to 60-65 deg.C, adding antioxidant dissolved in humectant 1, 2-hexanediol, vacuumizing, defoaming, and stirring;

4) cooling to 45 deg.C under stirring, adding the aromatic and the rest skin conditioner (1, 2-pentanediol, nicotinamide, and ascorbic acid polypeptide) in phase C, and stirring;

5) discharging after the detection is qualified, and filling to obtain the oil-water layered skin lotion.

Comparative example 1

Comparative example 1 differs from example 1 in that: the formulation of the two-layer skin lotion did not include the thickener sodium polyacrylate and was the same as in example 1.

Comparative example 2

Comparative example 2 differs from example 1 in that: the solubilizer was replaced with polyoxyethylene sorbitan monostearate and the rest was the same as in example 1.

Comparative example 3

Comparative example 3 differs from example 1 in that: the amount of the solubilizer was 0.6 part, and the rest was the same as in example 1.

Comparative example 4

Comparative example 4 differs from example 1 in that: the formulation of the two-layer skin lotion did not include 1, 2-hexanediol, 1, 2-pentanediol, and lemon (CITRUS LIMON) peel oil, and the rest was the same as in example 1.

Effect verification

1. Appearance test

The appearance of the two-layer skin lotions obtained in examples 1 to 5 was observed. As shown in fig. 1, which is an appearance diagram of the double-layer skin lotion of example 1, it can be seen that the upper layer of the skin lotion is white emulsion, the lower layer is clear and transparent essence, and the upper and lower layers are clear and flat. As shown in fig. 2, which is an appearance diagram of the skin lotion of example 1 after shaking uniformly, it can be seen that the upper layer emulsion and the lower layer essence are uniformly mixed to form a stable microemulsion system, and after shaking uniformly and standing for 30min, the state of the skin lotion of fig. 2 is restored to the state of fig. 1 again, and the skin lotion has moderate layering speed, clear interface and good effect. The layering conditions of the skin lotions of examples 2-5 are similar to those of example 1, and are not described again.

2. Stability test

The stability test was performed on the two-layer lotions of examples 1 to 5 and comparative examples 1 to 4, respectively, and the test indexes and test results are shown in table 2 below.

Table 2 stability test results recording table

The records in table 2 show that the double-layer skin moisturizers of examples 1 to 5 have good stability, and especially the freeze tests can show that the microemulsion systems of examples 1 to 5 can ensure long-term stability, which benefits from the ingenious combination of PPG-26-butyether-26/PEG-40 hydrogenated castor oil/water and sodium polyacrylate, and the reasonable design of the amount of each component, so as to finally form a specific thickened suspension composition, so that the emulsified oil can be uniformly distributed between the water layers, and a microemulsion system with very high stability can be formed. While comparative example 1 lacks the thickener sodium polyacrylate, comparative example 2 replaces the solubilizer with polyoxyethylene sorbitan monostearate, and comparative example 3 uses more solubilizer, which all affect the stability of the product.

3. Biodegradability test

The double-layered skin moisturizer obtained in examples 1 to 5 was subjected to biodegradation test using OECD 301 standard method, the test method was performed according to the standard, and the test results were recorded as shown in table 3 below.

TABLE 3 biodegradable capability test results

As can be seen from the records in Table 3, the biodegradable abilities of the two-layer skin lotions of examples 1 to 5 can satisfy the cosmetic requirements, and are environmentally friendly products.

4. Moisture retention test

The skin lotions obtained in examples 1 to 5 and comparative examples 1 to 4 were subjected to a moisturizing efficacy test according to the following methods: 90 volunteers were selected and divided into 9 groups of 10 persons, and the skin lotions of examples 1 to 5 and comparative examples 1 to 4 were used for the volunteers of each group. After each volunteer used the same face cleanser in the morning, 3ml of corresponding skin lotion was taken for skin care, and then the moisture content of the face before and after the skin lotion was applied was measured with a skin moisture tester. The test results are shown in table 4 below (the values for each group are the average of 10 volunteers).

Table 4 moisture retention effect test recording table

Group of	Moisture content of skin before use	Moisture content of skin after application
			Example 1	32％	55％
Example 2	30％	52％
			Example 3	29％	51％
Example 4	29％	53％
			Example 5	33％	50％
Comparative example 1	28％	44％
			Comparative example 2	30％	42％
Comparative example 3	28％	49％
			Comparative example 4	29％	45％

As can be seen from the records in table 5, after the skin moisturizers of examples 1 to 6 are used, the skin moisture content is significantly increased and the moisturizing effect is significant, which is benefited from the reasonable matching of the components of the skin moisturizer provided by the present invention, the skin moisturizer is prepared from the specific emollient, solubilizer, humectant, skin conditioner and aromatic, and other auxiliary components, so that the product is similar to the sebum structure of the skin, i.e., the skin-friendly structure can be formed, and the skin-friendly effect is excellent, so that the skin can better absorb the skin moisturizer, and the optimal moisturizing effect is achieved.

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 double-layer skin lotion is characterized by comprising an A phase, a B phase and a C phase, wherein the A phase, the B phase and the C phase comprise the following components in parts by weight:

2. The bi-layer skin lotion of claim 1, wherein the solvent is water; the chelating agent is EDTA disodium; the thickening agent is sodium polyacrylate; the antioxidant is hydroxyacetophenone.

3. The bi-layer lotion of claim 1 wherein said emollient comprises 8-10 parts of cyclopentadimethylsiloxane/cyclohexasiloxane complex, 2-8 parts of cetyl ethylhexanoate; the humectant comprises 2-8 parts of propylene glycol, 2-5 parts of butanediol and 0.2-1 part of 1, 2-hexanediol; the skin conditioner comprises 0.3-1 part of 1, 2-pentanediol, 0.1-1 part of nicotinamide, 0.1-1 part of ascorbic acid polypeptide and 0.01-1 part of tremella extract; the aromatic comprises 0.1-1 part of lemon peel oil and 0.1-1 part of bitter orange flower oil.

4. The double-layer skin lotion according to claim 3, wherein the emollient comprises 8.5-9.5 parts of cyclopentadimethylsiloxane/cyclohexasiloxane complex, 3-7 parts of cetyl ethylhexanoate; the humectant comprises 3-7 parts of propylene glycol, 3-4 parts of butanediol and 0.3-0.8 part of 1, 2-hexanediol; the skin conditioner comprises 0.5-0.7 part of 1, 2-pentanediol, 0.2-0.8 part of nicotinamide, 0.2-0.8 part of ascorbic acid polypeptide and 0.02-0.7 part of tremella extract; the aromatic comprises 0.3-0.8 part of lemon peel oil and 0.3-0.8 part of bitter orange flower oil.

5. The bilayer skin lotion of claim 1, wherein the composition and parts by weight of phase a, phase B and phase C are as follows:

phase A: 12-16 parts of an emollient, and 0.2-0.4 part of a solubilizer;

and C phase: 0.5-3 parts of a skin conditioner; 0.3-0.8 part of aromatic.

6. The bilayer skin moisturizer of claim 1, comprising a phase A, a phase B and a phase C, wherein the phase A, the phase B and the phase C comprise the following components in parts by weight:

7. The bilayer skin moisturizer of claim 1, comprising a phase A, a phase B and a phase C, wherein the phase A, the phase B and the phase C comprise the following components in parts by weight:

8. The bi-layer skin lotion according to claim 1, wherein the weight ratio of said a phase to said B phase is (0.09-0.25): 1, the solubilizer accounts for 0.01 to 0.05 of the weight of the phase A.

9. A method for preparing the double-layer skin lotion according to any one of claims 1 to 8, which comprises the following steps:

10. The method for preparing the double-layer skin moisturizer according to claim 9, which comprises the following steps: