阅读说明：本技术 含硅酸盐和枯草菌脂肽钠的喷雾乳液产品及其制备方法 (Spray emulsion product containing silicate and sodium surfactin and preparation method thereof ) 是由 吴旭 陈晗俊 庄洁 段国兰 安冬 徐婷 邵萌 李慧良 于 2021-08-20 设计创作，主要内容包括：本发明属于日用化妆品领域,公开了一种喷雾乳液产品及其制备方法,所述喷雾乳液产品含有硅酸盐和枯草菌脂肽钠。本发明首次提供了喷雾形式的高粘度乳液产品,该乳液产品引入枯草菌脂肽钠和硅酸盐类原料,解决了乳液因其粘度高而不能喷出的问题,打破了只有亲水型原料或是只有低粘度流动液体才能做喷雾的传统思维模式,并赋予了乳液很好的稳定性；同时,喷雾乳液作为乳液产品可含有油相,可以使更多的油溶性功效活性物应用于喷雾配方中,克服了现有水性乳液产品必须搭配含油脂的产品使用的缺陷。(The invention belongs to the field of daily cosmetics and discloses a spray emulsion product and a preparation method thereof. The invention provides a high-viscosity emulsion product in a spray form for the first time, the emulsion product introduces sodium surfactin and silicate raw materials, the problem that the emulsion cannot be sprayed due to high viscosity is solved, the traditional thinking mode that only hydrophilic raw materials or only low-viscosity flowing liquid can be sprayed is broken, and the emulsion is endowed with good stability; meanwhile, the spray emulsion as an emulsion product can contain an oil phase, so that more oil-soluble active substances with efficacy can be applied to a spray formula, and the defect that the existing water-based emulsion product needs to be matched with a product containing oil for use is overcome.)

1. A spray emulsion product comprising silicate and sodium surfactin.

2. The spray emulsion product of claim 1, wherein the silicate is selected from one or more of magnesium silicate salts, preferably from one or more of magnesium aluminum silicate, sodium magnesium silicate, lithium magnesium silicate, and lithium magnesium silicate.

3. A spray emulsion product according to claim 1 or 2, wherein the silicate is present in an amount of 1 to 10%, preferably 2 to 5%, by weight; the content of the sodium surfactin is 0.1-10%, preferably 0.5-2%.

4. The spray emulsion product of claim 1 or 2, wherein the mass ratio of sodium surfactin to silicate is from 1: 0.2 to 50, preferably 1: 1-10.

5. The spray emulsion product of claim 1, further comprising a polyol and an oil, wherein the polyol is present in an amount of 1 to 50 weight percent and the oil is present in an amount of 1 to 50 weight percent.

6. The spray emulsion product of claim 5, further comprising an oil soluble active ingredient selected from at least one of active ingredients having whitening, antioxidant, anti-acne, exfoliating, moisturizing, oil management, soothing, anti-inflammatory effects.

7. A method of making a spray emulsion product comprising the steps of:

(1) preparation of phase a and phase B: mixing sodium surfactin, grease and polyalcohol to obtain phase A; preparing silicate water dispersion to obtain phase B;

(2) adding phase A into phase B, mixing to obtain uniform and stable mixture, standing to form non-flowing oil-in-water solid emulsion, and packaging.

8. A process for the preparation of a spray emulsion product according to claim 7 wherein the silicate is selected from one or more of magnesium silicate salts, preferably from one or more of magnesium aluminium silicate, sodium magnesium silicate, magnesium lithium silicate.

9. A process for the preparation of a spray emulsion product according to claim 7 or 8, wherein the silicate is present in an amount of 1 to 10%, preferably 2 to 5%, by weight; the content of the sodium surfactin is 0.1-10%, preferably 0.5-2%.

10. A process for preparing a spray emulsion product according to claim 7 or 8 wherein the mass ratio of sodium surfactin to silicate is from 1: 0.2 to 50, preferably 1: 1-10.

11. The method of preparing a spray emulsion product according to claim 7 or 8, further comprising an oil soluble active ingredient selected from at least one of active ingredients having whitening, antioxidant, acne removing, cutin removing, moisturizing, oil control, allergy soothing, anti-inflammatory effects, wherein the oil soluble active ingredient is added in phase a of step (1).

Technical Field

The invention belongs to the field of daily cosmetics, and particularly relates to a spray emulsion product containing silicate and sodium surfactin and a preparation method thereof.

Background

There are aerosol type spray cans and non-aerosol type spray cans, and in the aerosol type spray cans, liquid and gas which can be ejected as fine particles are stored in a pressurized state, and such gas is harmful to the environment. A non-aerosol type sprayer, also called a hand sprayer, which realizes its spraying function by using the principle of spraying liquid from air, does not cause damage to the environment, and is preferably used.

Based on the principle of spraying liquid, most of the sprays of the traditional commercially available non-aerosol type sprayers are made of pure hydrophilic raw materials or flowing liquid with low viscosity. However, such spray is fresh and comfortable to spray, but if moisturizing lotion or cream is not applied, the spray can take away moisture on the surface of the skin after evaporation, but the moisture is drier, and a product containing grease is still needed to be matched to delay the moisture loss. In addition, the traditional spray mostly uses water as a matrix, so that the addition of other raw materials such as oil solubility and the like in a spray formulation is limited, and the use of the spray is influenced.

Disclosure of Invention

The invention provides a spray emulsion product, which introduces sodium surfactin and silicate raw materials, solves the problem that the emulsion can not be sprayed due to high viscosity, breaks through the traditional thinking mode that only hydrophilic raw materials or only low-viscosity flowing liquid can be sprayed, and endows the emulsion with good stability; meanwhile, the spray emulsion as an emulsion product contains an oil phase, so that more oil-soluble active substances with efficacy can be applied to a spray formula.

The technical scheme of the invention is as follows:

a spray emulsion product comprising silicate and sodium surfactin.

As a preferable scheme of the spray emulsion product, the silicate is selected from one or more of magnesium silicate, and further preferably, the silicate is selected from one or more of magnesium aluminum silicate, magnesium lithium silicate and magnesium sodium silicate.

As a preferable scheme of the spray emulsion product, the content of the silicate is 1 to 10 percent by weight.

As a preferable scheme of the spray emulsion product, the content of the sodium surfactin is 0.1-10% by weight percentage.

As a preferable scheme of the spray emulsion product, the content of the silicate is 2-5% by weight percentage.

As a preferable scheme of the spray emulsion product, the content of the sodium surfactin is 0.5-2% by weight percentage.

As a preferable scheme of the spray emulsion product, the mass ratio of the sodium surfactin to the silicate is 1: 0.2-50.

As a preferable scheme of the spray emulsion product, the mass ratio of the sodium surfactin to the silicate is 1: 1-10.

As a preferable scheme of the spray emulsion product, the spray emulsion product comprises polyhydric alcohol and grease, wherein the weight percentage of the polyhydric alcohol is 1-50%, and the weight percentage of the grease is 1-50%.

The polyhydric alcohol and the grease are all known in the art, and the specific selection of which agent is not particularly limited in the present invention, for example, the polyhydric alcohol may be one or more of glycerol, butanediol and propylene glycol, and the grease may be one or more of caprylic/capric triglyceride, ethylhexyl palmitate and squalane. The polyhydric alcohol and the grease are used as oil phases, so that more oil-soluble active substances with efficacy can be applied to a spray formula.

As a preferable embodiment of the spray emulsion product, the spray emulsion product further comprises an oil-soluble active ingredient, and the oil-soluble active ingredient is at least one of active ingredients with whitening, antioxidation, acne removal, cutin removal, moisture retention, oil control, allergy relief and anti-inflammatory effects. Some specific examples of active ingredients with whitening, antioxidant, acne-removing, exfoliating, moisturizing, oil-controlling, soothing, anti-inflammatory effects can be selected with reference to ingredients listed in the existing patent literature or books.

Based on the same inventive concept, the invention also provides a preparation method of the spray emulsion product, which comprises the following steps:

(1) preparation of phase a and phase B: mixing sodium surfactin, grease and polyalcohol to obtain phase A; preparing silicate water solution to obtain phase B; wherein, the sequence of preparing the phase A and the phase B is not in sequence;

(2) adding phase A into phase B, mixing to obtain uniform and stable mixture, standing to form non-flowing oil-in-water solid emulsion, and packaging.

In a specific embodiment, the sodium surfactin can be preferably in the form of powder.

As a preferable mode of the preparation method of the spray emulsion product, the silicate is selected from one or more of magnesium silicate.

As a preferable mode of the preparation method of the spray emulsion product, the silicate is one or more selected from magnesium aluminum silicate, sodium magnesium silicate, lithium magnesium silicate and lithium magnesium silicate.

As a preference of the preparation method of the spray emulsion product, the content of the silicate is 1 to 10 percent by weight.

As a preferable method for preparing the spray emulsion product, the content of the sodium surfactin is 0.1 to 10 percent by weight.

As a preference for the preparation of the spray emulsion product, the silicate content is 2 to 5% by weight.

As a preferable method for preparing the spray emulsion product, the content of the sodium surfactin is 0.5 to 2 percent by weight.

As a preferable selection of the spray emulsion product, the mass ratio of the sodium surfactin to the silicate is 1: 0.2-50.

As a preferable preference of the spray emulsion product, the mass ratio of the sodium surfactin to the silicate is 1: 1-10.

As a preferable method for preparing the spray emulsion product, the spray emulsion product further comprises an oil-soluble active ingredient, wherein the oil-soluble active ingredient is at least one selected from active ingredients with whitening, anti-aging and anti-acne effects, and the oil-soluble active ingredient is added in the phase a in the step (1).

The invention has the following beneficial effects:

1. the invention solves the problem that the emulsion with high viscosity can not be sprayed by simultaneously adding silicate (such as magnesium aluminum silicate) and sodium surfactin, breaks through the traditional thinking mode that only hydrophilic raw materials or only low-viscosity flowing liquid can be sprayed, and provides a brand-new emulsion product with high viscosity and capable of being smoothly sprayed by a sprayer.

2. The aluminum magnesium silicate and the surfactin sodium are reasonably compounded in the spray emulsion, so that the spray emulsion can be sprayed out under the condition that other emulsifiers and other components are not added, the stability of the emulsion is improved, the phenomena of water-oil layering and the like cannot occur, the emulsion particle size is small, and the emulsion is easier to absorb by skin.

3. The spray emulsion products of the present invention achieve the introduction of an oil phase into the spray product, thereby allowing more oil soluble actives to be applied in the spray formulation.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

FIG. 1 is a graph of viscosity as a function of shear rate for emulsions prepared according to examples 1-11, comparative example 1, comparative example 2, comparative example 4, and comparative example 5 of the present invention;

fig. 2a, 2b, 2c, and 2d are photographs of emulsion particles of example 1, comparative example 1, example 10, and comparative example 5 under a high power microscope, respectively.

Detailed Description

The invention provides a spray emulsion product which is characterized by simultaneously containing silicate and sodium surfactin.

Wherein, the SODIUM surfactin-binding peptide (SODIUM surfactin-binding peptide) is fermented by bacillus subtilis high-yielding strain, has biodegradability, good biocompatibility, ultralow irritation and stable physical and chemical properties, and is identified by toxicology and hygiene; the sodium surfactin is a surfactant and a biological emulsifier with excellent performance, and has strong antibacterial and bacteriolytic effects and the effect of inhibiting blood cellulose coagulation.

MAGNESIUM ALUMINUM SILICATE (MAGNESIUM ALUMINUM SILICATE), also known as MAGNESIUM ALUMINUM metasilicate, is a substance having a very large specific surface area and a very developed micropore system, can be used as an adsorbent, a moisture-proof agent, and the like, can absorb liquid of three times the mass, but is insoluble in water and alcohol, and is usually used as a thickener by being compounded with a polymer thickener in cosmetics.

Compared with other thickening agents, the magnesium aluminum silicate has very high thixotropic fluidity, namely, the magnesium aluminum silicate can immediately flow into a flowable liquid when the magnesium aluminum silicate is sheared by external force, and can immediately reduce into a non-flowable state when the external force disappears. The thixotropic property of the aluminum magnesium silicate is utilized to realize that the high-viscosity emulsion can be sprayed successfully, but the aluminum magnesium silicate cannot bear a high-content oil phase only, and a product with the high-content oil phase is easy to layer due to instability, so that the sodium surfactin is also selected as a proper emulsifier.

Besides aluminum magnesium silicate, other silicates, such as magnesium lithium silicate, magnesium sodium silicate, and the like, have thickening, suspending, thixotropic, and the like effects, and can be used instead of aluminum magnesium silicate, and only the thickening effect and the ion resistance are different. If the formulation contains too many ions, one silicate or a combination of several silicates may be required, and the skilled person can adjust the formulation on his own without further elaboration.

In this context, a range of values from one value to another is a general expression avoiding any recitation of all values in the range in the specification. Thus, recitation of a range of values herein is intended to encompass any value within the range and any smaller range defined by any value within the range, as if the range and smaller range were explicitly recited in the specification.

The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention. In practice, the invention will be understood to cover all modifications and variations of this invention provided they come within the scope of the appended claims. The reagents used in the following examples are all commercially available.

Example 1

(1) Weighing 0.5g of surfactin sodium powder, adding into 10g of glycerol, mixing, slowly adding 10g of caprylic/capric triglyceride, and stirring to form uniform and stable liquid to obtain phase A;

(2) weighing 77.5g of deionized water into a beaker at normal temperature, keeping stirring, slowly adding 2g of magnesium aluminum silicate until the powder is fully dispersed to form uniform and stable liquid to obtain a phase B;

(3) slowly adding the phase A into the phase B at room temperature, and keeping stirring to make the mixed system be uniform and stable 100g of liquid. Filling, and standing for 10 minutes to form non-flowing solid milk (O/W).

Example 2

(1) Weighing 0.5g of surfactin sodium powder, adding into 10g of glycerol, mixing, slowly adding 10g of caprylic/capric triglyceride, and stirring to form uniform and stable liquid to obtain phase A;

(2) weighing 77.5g of deionized water into a beaker at normal temperature, keeping stirring, slowly adding 2g of sodium magnesium lithium silicate, and obtaining a B phase when the powder is fully dispersed to form uniform and stable liquid;

(3) slowly adding the phase A into the phase B at room temperature, and keeping stirring to make the mixed system be uniform and stable 100g of liquid. Filling, and standing for 10 minutes to form non-flowing solid milk (O/W).

Example 3

(1) Weighing 0.5g of surfactin sodium powder, adding into 10g of glycerol, mixing, slowly adding 10g of caprylic/capric triglyceride, and stirring to form uniform and stable liquid to obtain phase A;

(2) weighing 74.5g of deionized water into a beaker at normal temperature, keeping stirring, slowly adding 5g of magnesium aluminum silicate until the powder is fully dispersed to form uniform and stable liquid to obtain a phase B;

(3) slowly adding the phase A into the phase B at room temperature, and keeping stirring to make the mixed system be uniform and stable 100g of liquid. Filling, and standing for 10 minutes to form non-flowing solid milk (O/W).

Example 4

(1) Weighing 0.1g of surfactin sodium powder, adding into 10g of glycerol, mixing, slowly adding 10g of caprylic/capric triglyceride, and stirring to form uniform and stable liquid to obtain phase A;

(2) weighing 74.9g of deionized water into a beaker at normal temperature, keeping stirring, slowly adding 5g of magnesium aluminum silicate until the powder is fully dispersed to form uniform and stable liquid to obtain a phase B;

(3) slowly adding the phase A into the phase B at room temperature, and keeping stirring to make the mixed system be uniform and stable 100g of liquid. Filling, and standing for 10 minutes to form non-flowing solid milk (O/W).

Example 5

(1) Weighing 1g of surfactin sodium powder, adding the powder into 10g of glycerin, mixing, slowly adding 10g of caprylic/capric triglyceride, and fully stirring to form uniform and stable liquid to obtain a phase A;

(2) weighing 78g of deionized water into a beaker at normal temperature, keeping stirring, slowly adding 1g of aluminum magnesium silicate, and obtaining a B phase when the powder is fully dispersed to form uniform and stable liquid;

(3) slowly adding the phase A into the phase B at room temperature, and keeping stirring to make the mixed system be uniform and stable 100g of liquid. Filling, and standing for 10 minutes to form non-flowing solid milk (O/W).

Example 6

(1) Weighing 10g of surfactin sodium powder, adding the powder into 10g of glycerin, mixing, slowly adding 10g of caprylic/capric triglyceride, and fully stirring to form uniform and stable liquid to obtain a phase A;

(2) weighing 68g of deionized water into a beaker at normal temperature, keeping stirring, slowly adding 2g of aluminum magnesium silicate, and obtaining a B phase when the powder is fully dispersed to form uniform and stable liquid;

(3) slowly adding the phase A into the phase B at room temperature, and keeping stirring to make the mixed system be uniform and stable 100g of liquid. Filling, and standing for 10 minutes to form non-flowing solid milk (O/W).

Example 7

(1) Weighing 0.5g of surfactin sodium powder, adding into 10g of glycerol, mixing, slowly adding 10g of caprylic/capric triglyceride, and stirring to form uniform and stable liquid to obtain phase A;

(2) weighing 69.5g of deionized water into a beaker at normal temperature, keeping stirring, slowly adding 10g of magnesium aluminum silicate until the powder is fully dispersed to form uniform and stable liquid to obtain a phase B;

(3) slowly adding the phase A into the phase B at room temperature, and keeping stirring to make the mixed system be uniform and stable 100g of liquid. Filling, and standing for 10 minutes to form non-flowing solid milk (O/W).

Example 8

(1) Weighing 0.5g of surfactin sodium powder, adding into 10g of glycerol, mixing, slowly adding 10g of caprylic/capric triglyceride, and stirring to form uniform and stable liquid to obtain phase A;

(2) weighing 76.5g of deionized water into a beaker at normal temperature, keeping stirring, slowly adding 3g of aluminum magnesium silicate until the powder is fully dispersed to form uniform and stable liquid to obtain a phase B;

(3) slowly adding the phase A into the phase B at room temperature, and keeping stirring to make the mixed system be uniform and stable 100g of liquid. Filling, and standing for 10 minutes to form non-flowing solid milk (O/W).

Example 9

(1) Weighing 2g of surfactin sodium powder, adding the powder into 10g of glycerin, mixing, slowly adding 10g of caprylic/capric triglyceride, and fully stirring to form uniform and stable liquid to obtain a phase A;

(2) weighing 76g of deionized water into a beaker at normal temperature, keeping stirring, slowly adding 2g of aluminum magnesium silicate, and obtaining a B phase when the powder is fully dispersed to form uniform and stable liquid;

(3) slowly adding the phase A into the phase B at room temperature, and keeping stirring to make the mixed system be uniform and stable 100g of liquid. Filling, and standing for 10 minutes to form non-flowing solid milk (O/W).

Example 10

(1) Weighing 1g of surfactin sodium powder, adding the powder into 10g of glycerin, mixing, slowly adding 10g of caprylic/capric triglyceride, and fully stirring to form uniform and stable liquid to obtain a phase A;

(2) weighing 77g of deionized water into a beaker at normal temperature, keeping stirring, slowly adding 2g of aluminum magnesium silicate until the powder is fully dispersed to form uniform and stable liquid to obtain a phase B;

(3) slowly adding the phase A into the phase B at room temperature, and keeping stirring to make the mixed system be uniform and stable 100g of liquid. Filling, and standing for 10 minutes to form non-flowing solid milk (O/W).

Example 11

(1) Weighing 5g of surfactin sodium powder, adding the powder into 10g of glycerin, mixing, slowly adding 10g of caprylic/capric triglyceride, and fully stirring to form uniform and stable liquid to obtain a phase A;

(2) weighing 73g of deionized water into a beaker at normal temperature, keeping stirring, slowly adding 2g of magnesium aluminum silicate until the powder is fully dispersed to form uniform and stable liquid to obtain a phase B;

(3) slowly adding the phase A into the phase B at room temperature, and keeping stirring to make the mixed system be uniform and stable 100g of liquid. Filling, and standing for 10 minutes to form non-flowing solid milk (O/W).

Comparative example 1

(1) Weighing 0.5g hydrogenated lecithin powder (phosphatidylcholine is more than or equal to 70%), adding into 10g glycerol, mixing, adding 10g caprylic/capric triglyceride, stirring to obtain uniform and stable liquid to obtain phase A;

(2) weighing 77.5g of deionized water into a beaker at normal temperature, keeping stirring, slowly adding 2g of magnesium aluminum silicate until the powder is fully dispersed to form uniform and stable liquid to obtain a phase B;

(3) slowly adding the phase A into the phase B at room temperature, and keeping stirring to make the mixed system be uniform and stable 100g of liquid. Standing for 10 min to obtain non-flowing solid milk (O/W), and packaging.

Comparative example 2

(1) Weighing 0.5g of surfactin sodium powder, adding into 10g of glycerol, mixing, slowly adding 10g of caprylic/capric triglyceride, and stirring to form uniform and stable liquid to obtain phase A;

(2) weighing 77.5g of deionized water into a beaker at normal temperature, keeping stirring, slowly adding 2g of xanthan gum until the powder is completely dissolved to form uniform and stable liquid, and obtaining a phase B;

(3) slowly adding the phase A into the phase B at room temperature, and keeping stirring to make the mixed system be uniform and stable 100g of liquid. Standing to form non-flowing solid milk (O/W), and packaging.

Comparative example 3

Weighing 0.5g of surfactin sodium powder, adding the powder into 10g of glycerin, uniformly stirring, slowly adding 10g of caprylic/capric triglyceride, fully stirring, supplementing deionized water to 100g after uniform and stable liquid is formed, stirring, cooling to room temperature, and filling to obtain the bactericide composition.

Comparative example 4

Weighing 98g of deionized water into a beaker at normal temperature, keeping stirring, slowly adding 2g of aluminum magnesium silicate until the powder is completely dissolved to form uniform and stable liquid, cooling to room temperature, and filling to obtain the product.

Comparative example 5

(1) Weighing 1g of hydrogenated lecithin powder (phosphatidylcholine is more than or equal to 70 percent), adding the hydrogenated lecithin powder into 10g of glycerol, mixing, adding 10g of caprylic/capric triglyceride, and fully stirring to form uniform and stable liquid to obtain phase A;

(2) weighing 77g of deionized water into a beaker at normal temperature, keeping stirring, slowly adding 2g of aluminum magnesium silicate until the powder is fully dispersed to form uniform and stable liquid to obtain a phase B;

(3) slowly adding the phase A into the phase B at room temperature, and keeping stirring to make the mixed system be uniform and stable 100g of liquid. Standing for 10 min to obtain non-flowing solid milk (O/W), and packaging.

Table 1 below shows the summary of the main components and contents of the examples and comparative examples, wherein the total mass of the system is 100 g.

TABLE 1

The products of examples 1-11 and comparative examples 1-5 were evaluated for their properties as follows:

1. evaluation of emulsion stability

30g of each of the emulsions prepared in examples 1 to 11 and comparative examples 1 to 5 was put in a 50ml glass bottle, and the bottle was placed in a 50 ℃ incubator for 3 months, and then the state of stability of the emulsion was observed at 7d, 14d, 1 month, 2 months and 3 months, respectively. The results are shown in Table 2.

As can be seen from Table 2, the emulsion products of example 1, example 2, example 3, example 4, example 7, example 8, example 9, example 10 and example 11 had good long-term stability and no delamination occurred within 3 months.

In example 5, the product had a certain initial viscosity, so that the product was relatively stable for two months and was not stratified, but the viscosity was still relatively low and the stratification was observed in the third month because the content of magnesium aluminum silicate was relatively low and the content of sodium surfactin was relatively high, which also affected the product.

Similarly, in example 6, the viscosity of the product is greatly reduced due to the relatively high sodium surfactin, so that the product is layered after 7 days.

The products of comparative examples 1 to 4, however, did not delaminate immediately after the preparation, but delaminated after a lapse of time, and were poor in long-term stability, which was very disadvantageous for the products. The creamy products delaminate in a short or shelf life and can affect consumer confidence in product quality.

TABLE 2

2. Evaluation of emulsion rheology

The viscosity of the emulsions prepared in examples 1 to 11, comparative example 1, comparative example 2, comparative example 4 and comparative example 5 was measured as a function of shear rate using a DHR-1 type rheometer and the viscosity values were recorded, in particular in Table 3, where the first row of data represents shear rate/s in Table 3^-1Number of lines 2 and subsequent linesAnd is representative of the viscosity values/pa.s exhibited by the respective examples or comparative examples corresponding to the first row shear rate. The data are summarized in table 3 and plotted in fig. 1.

In the evaluation of the rheological properties of the emulsion, comparative example 3 was too viscous to measure the viscosity, and thus no data was shown.

TABLE 3

For emulsion products, systems with too low a viscosity are unstable, delaminate easily, have too high a viscosity to be ejected, and therefore, a viscosity in a suitable range needs to be selected, and a high initial viscosity and a low shear viscosity are preferred. As can be seen from table 3 and fig. 1:

examples 1, 6, 9-11 with constant magnesium aluminum silicate content and varying sodium surfactin content:

A. under the control of magnesium aluminum silicate at the same concentration, the viscosity of example 1 (containing 0.5% sodium surfactin) was significantly higher than that of comparative example 1 (containing 0.5% hydrogenated lecithin) before applying the shear force. When the viscosity of example 1 is slightly lower than that of comparative example 1 at the end with the increase of the shearing force, it is shown that example 1 is more susceptible to shear thinning by the external force, and it is proved that example 1 is more likely to eject the bulk liquid than comparative example 1. Compared with other emulsifiers, the sodium surfactin has better thixotropy after emulsification.

B. Example 6, increasing the sodium surfactin (10%) and keeping the magnesium aluminum silicate (2%) constant, the sodium surfactin is relatively too high, which results in a relatively high anion content, while the magnesium aluminum silicate used as a thickener emulsion stabilizer is relatively low, which results in a decrease in system viscosity and poor product stability, and it is seen in the results shown in table 2 that the product is delaminated, and the change from the initial viscosity to the final viscosity is not as obvious as in examples 1 and 9-11.

C. Example 9 increasing the sodium surfactin content (2%) and controlling the magnesium aluminum silicate content constant (2%) because the anion content is relatively too high, the viscosity of the system becomes low. The initial viscosity was lower than that of example 1, and as the shear force increased, the viscosity of example 1 was slightly lower than that of example 9. Thus, example 9 has less thixotropic properties than example 1.

D. Example 10, increasing the sodium surfactin content (1%) and controlling the magnesium aluminum silicate content constant (2%), compared to example 1, the final viscosity was still slightly higher than example 1.

E. Example 11, increasing the sodium surfactin (5%) and controlling the magnesium aluminum silicate content constant (2%) resulted in a lower initial viscosity of the system compared to example 1 because of the relatively higher anion content. When the shear force is increased, the viscosity of the example 11 is finally reduced, and the viscosity spray can be sprayed. However, since the viscosity of example 11 changed from the initial viscosity to the final viscosity less significantly than that of example 1, example 11 was inferior to example 1 in thixotropy.

Examples 1, 3, 7, 8, with the sodium surfactin content unchanged, the magnesium aluminum silicate content varied:

F. example 3, the stability shown in table 2 is still good compared with example 1, wherein the content of sodium surfactin is controlled to be constant (0.5%) and the content of aluminum magnesium silicate is increased (5%). However, the initial viscosity increased compared to example 1 due to the increased magnesium aluminum silicate content. Although the viscosity was also decreased by the external force shear, the viscosity at the end point was higher than that of example 1 and did not behave as in example 1.

G. Example 7, the stability shown in table 2 remains good by controlling the sodium surfactin content constant (0.5%) and increasing the magnesium aluminum silicate content (10%). However, since the content of magnesium aluminum silicate is too high, the initial viscosity also increases greatly. Although the viscosity was also decreased by the external force shear, the viscosity was higher than those of examples 1 and 3 at the end point, and the performances were inferior to those of examples 1 and 3.

H. Example 8, the stability shown in table 2 remains good by controlling the sodium surfactin content constant (0.5%) and increasing the magnesium aluminum silicate content (3%). However, the initial viscosity also increases due to the increase in the content of magnesium aluminum silicate. Under the external force shearing, although the viscosity is also reduced, at the end point, the viscosity is higher than that of example 1 but lower than that of examples 3 and 7, so that the performance is not as good as that of example 1 but better than that of examples 3 and 7.

I. Example 2 in the case of controlling the same concentration of sodium surfactin, the viscosity of example 1 (containing 2% magnesium aluminum silicate) was slightly higher than that of example 2 (containing 2% magnesium lithium silicate) before the shear force was applied by changing the concentration of magnesium aluminum silicate of example 1 to the same concentration of magnesium lithium silicate. When the shear force is increased, the viscosity of the example 1 is lower than that of the example 2, so the example 1 is better than the example 2. Example 2 also showed a significant viscosity drop upon application of external shear and therefore also met the product quality requirements.

J. Example 4, the stability shown in table 2 remains good at reducing the sodium surfactin content (0.1%) and increasing the magnesium aluminum silicate content (5%) compared to example 1. However, the initial viscosity also increases due to the increase in the content of magnesium aluminum silicate. Although the viscosity was also decreased by the shear force, the viscosity was higher than that of examples 1, 2, 3, 8, 9 and 10 at the end point, and was inferior to that of examples 1, 2, 3, 8, 9 and 10.

K. Example 5, the content of sodium surfactin was increased (1%) and the content of magnesium aluminum silicate was decreased (1%) as compared with example 1, and since the content of magnesium aluminum silicate as a thickener and an emulsion stabilizer was relatively low, the initial viscosity of the product was relatively low and the viscosity at the end point was low, but the degree of change from the initial viscosity to the final viscosity was also inferior to that of example 1.

L example 1 (containing 2% magnesium aluminium silicate) had a significantly higher viscosity than comparative example 2 (containing 2% xanthan gum) before applying shear force at the same concentration with controlled use of sodium surfactin. When the viscosity of example 1 is finally significantly lower than that of comparative example 2 with the increase of the shearing force, the viscosity of comparative example 2 is still high and is in a state of viscosity that large-area bulk liquid cannot be ejected.

In summary, when the silicate content is 1-10% and the sodium surfactin is 0.1-10%, the spray emulsion product can be prepared, wherein the silicate content is 2-5%, and the sodium surfactin is 0.5-2%, the performance of the spray emulsion product is better, and the effect is especially best according to the embodiment 1.

3. Evaluation of emulsion particle size

The emulsified particles of examples 1 and 10 and comparative examples 1 and 5 were observed by high power microscope, and the specific method was as follows: the photomicrograph was taken from a Nikon biomicroscope model Ci-S, with a scale of 100 μm. In which fig. 2a is a photomicrograph of example 1, fig. 2b is a photomicrograph of comparative example 1, fig. 2c is a photomicrograph of example 10, and fig. 2d is a photomicrograph of comparative example 5.

As can be seen from the figures 2a, 2b, 2c and 2d, the emulsified particle size is from small to large, the figure 2a is more than the figure 2c is more than the figure 2d is less than or equal to the figure 2b, the distribution and the size of the figure 2a are more uniform, and the emulsified particles in the figures 2b and 2d are relatively large and have partial agglomeration phenomenon. Thus, it is presumed that the particles of example 1 have a small particle size and are most stable, example 10 times, whereas the particles of comparative examples 1 and 5 have a large particle size and are less stable, and the emulsified particles of comparative examples 1 and 5 are large and are less easily absorbed into the skin than those of example 1 and example 10.

Through the verification of the experiments, the conclusion can be drawn that the performance of the prepared spray solid emulsion is better in all aspects due to the compounding of the silicate and the sodium surfactin.

In light of the above teachings, those skilled in the art will readily appreciate that the materials and their equivalents, the processes and their equivalents, as listed or exemplified herein, are capable of performing the invention in any of its several forms, and that the upper and lower limits of the parameters of the materials and processes, and the ranges of values between these limits are not specifically enumerated herein.