CN115429710A

CN115429710A - Moisturizing skin care product containing natural preservative and preparation method thereof

Info

Publication number: CN115429710A
Application number: CN202211079512.2A
Authority: CN
Inventors: 周坤江; 沈晋宝
Original assignee: Shantou Qiwei Industrial Co ltd
Current assignee: Shantou Qiwei Industrial Co ltd
Priority date: 2022-09-05
Filing date: 2022-09-05
Publication date: 2022-12-06

Abstract

The invention relates to the technical field of cosmetics, and discloses a moisturizing skin care product containing a natural preservative and a preparation method thereof. Firstly, stirring hydroxyethyl acrylate/acryloyl dimethyl sodium taurate copolymer, polysorbate-60 and the like to obtain an emulsification system; and adding substances with moisturizing and skin caring effects such as herba Cichorii extract and herba Agastaches extract into emulsifying system to form mixture. Preparing a water phase system by deionized water, 1, 2-pentanediol and the like; and adding the aqueous phase system into the mixture to obtain a mixed emulsion. Adding semen glycines extract into the mixed emulsion to obtain moisturizing skin care product containing natural antiseptic. Compared with artificial preservatives which are harmful to human bodies, such as parabens, formaldehyde release bodies and the like contained in traditional cosmetics, the skin care product has the advantages of environmental friendliness, no pollution, good moisturizing and preservative effects.

Description

Moisturizing skin care product containing natural preservative and preparation method thereof

Technical Field

The invention relates to the technical field of cosmetics, in particular to a moisturizing skin care product containing a natural preservative and a preparation method thereof.

Background

With the concern of consumers on health and the concept of 'green, environment-friendly and safe' in depth, many artificial preservatives having harmful effects on human bodies are resisted by the public in the industry. There is an increasing consumer demand for safe, mild, non-irritating, moisture-retaining skin care products without the addition of artificial preservatives. Meanwhile, moisturizing is also an important effect of skin care products.

The prior art researches on a preparation method of a skin care product added with a preservative comprise the following steps: chinese patent CN101444472B discloses a preparation method of a skin care product. The skin care product adopts chemical synthetic antiseptic commonly used in skin care product field, including parabens, phenoxyethanol, etc. Chinese patent CN109260123B discloses a preparation method of an anti-inflammatory skin care product with light marks. The skin care product comprises anti-inflammatory and anti-fading components, essence, antiseptic, etc., wherein the antiseptic is selected from one or more of methyl hydroxybenzoate, propyl hydroxybenzoate, phenoxyethanol, benzyl alcohol, sodium benzoate, and potassium sorbate.

The chemically synthesized preservatives represented by the parabens and the parabens are harmful to human skin, and the artificial preservatives can be easily absorbed by the human body, so that the barrier health of the skin is further influenced, and the structure of keratinocytes is loose.

Disclosure of Invention

In order to solve the problems, the invention provides a preparation method of a moisturizing skin care product containing natural preservatives, which comprises the following steps:

step one, stirring hydroxyethyl acrylate/acryloyl dimethyl sodium taurate copolymer, polysorbate-60, sorbitan isostearate and dioctyl carbonate to obtain an emulsification system;

adding the chicory extract, the agave extract, the sodium hyaluronate and the bitter orange flower extract into the emulsification system, and stirring to obtain a mixture;

step three, stirring and mixing deionized water, EDTA disodium, butanediol, glycerol, 1, 2-hexanediol, caprylyl glycol and 1, 2-pentanediol to obtain a water phase system, mixing the water phase system with the mixture, and then continuously stirring to obtain a mixed emulsion;

adding the wild soybean seed extract, the cinnamon extract, the clove extract and the magnolia bark extract into the mixed emulsion, and stirring to obtain the moisturizing skin care product containing the natural preservative;

the wild soybean seed extract is prepared by the following steps:

(1) Carrying out degreasing treatment on the wild soybean seeds to obtain wild soybean seed degreased bean pulp;

(2) Mixing the defatted soybean meal of the wild soybean seeds with pure water according to the mass ratio of 1:5-7 to obtain a mixed material, and carrying out ultrasonic treatment on the mixed material at 50-70 ℃ for 50-70min to obtain an ultrasonic mixed material;

(3) Adding compound enzyme into the mixture subjected to the ultrasonic treatment for enzymolysis, and inactivating the enzyme after the enzymolysis is finished to obtain an enzyme-inactivated mixture; filtering the mixture after enzyme deactivation, and collecting the filtrate to obtain the extract of the wild soybean seeds.

Preferably, in the first step, the mass ratio of the hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer to the polysorbate-60 to the sorbitan isostearate to the dioctyl carbonate is (1-2) to (2-4).

Preferably, in the second step, the mass ratio of the chicory extract, the agave extract, the sodium hyaluronate, the bitter orange flower extract and the emulsifying system is (1-2): (7-14).

Preferably, in the third step, the mass ratio of the deionized water, the disodium EDTA, the butanediol, the glycerol, the 1, 2-hexanediol, the octylene glycol and the 1, 2-pentanediol to the mixture is (92-95) to 1 (2-3) to (2-4) to (1-1.6) to (11-19.2).

Preferably, in the fourth step, the mass ratio of the wild soybean seed extract, the cinnamon extract, the clove extract, the magnolia bark extract and the mixed emulsion is (3-5): 1.4 (1-1.4): 114-124.

Preferably, the complex enzyme comprises pectinase, cellulase and protease which are mixed according to the mass ratio of 1; the mass ratio of the compound enzyme to the mixture after ultrasonic treatment is 0.5; the enzymolysis temperature is 60 deg.C, and the enzymolysis time is 2h.

Preferably, the moisturizing skin care product containing the natural preservative is prepared by the preparation method of the moisturizing skin care product containing the natural preservative.

The invention also provides a filtering device which can filter the mixture after enzyme deactivation in the method. The filtering device comprises a machine body, a filtering mechanism arranged in the machine body, a separating mechanism arranged outside the machine body and a counting mechanism arranged on the machine body, wherein the filtering mechanism comprises a rotary transmission arm and a filtering pipe, the filtering pipe is movably arranged on both ends of the rotary transmission arm, so that the mixture after enzyme deactivation flows into the filtering pipe through the rotary transmission arm to be filtered;

the separation mechanism comprises a separation ring, the separation ring is arranged outside the machine body and is positioned in the same plane with the upper end of the filter pipe, so that the separation ring separates the filter pipe from the rotary transmission arm and enables the separation ring to clamp the filter pipe back to the rotary transmission arm again;

the counting mechanism comprises a grooved pulley turntable and a counter, and the grooved pulley turntable is connected with the counter through a toothed belt;

the grooved pulley rotary table can be driven to rotate by the two ends of the rotary transmission arm when the rotary transmission arm rotates, and meanwhile, the counter counts the rotation times of the grooved pulley rotary table, so that the separating ring separates the filter pipe after the counter achieves quantitative counting.

Preferably, the filter mechanism further comprises a motor, a first gear, a driving rod and a second gear, the motor is fixedly mounted on the machine body, an output shaft of the motor penetrates through the machine body, the first gear is fixedly mounted on the output shaft of the motor and located in the machine body, the driving rod is matched with the machine body in a rotating mode, the second gear is fixedly mounted on the driving rod and meshed with the first gear, and the rotary transmission arm is fixedly mounted at the bottom end of the driving rod.

Preferably, be provided with the bearing on the rotatory transmission arm, the actuating lever runs through the bearing, be provided with the transmission box on the bearing, the actuating lever runs through the transmission box, the actuating lever with transmission box normal running fit, the transmission box with rotatory transmission arm communicates with each other, fixed mounting has the pan feeding pipe on the transmission box, the pan feeding pipe runs through the lateral wall of organism, the pan feeding pipe with the transmission box communicates with each other.

Preferably, equal fixed mounting has automatically controlled valve on the both ends of rotatory transmission arm, automatically controlled valve control rotatory transmission arm is inside to the transmission route at both ends, equal movable mounting has the acceptor on the both ends of rotatory transmission arm, the acceptor with rotatory transmission arm communicates with each other, equal fixed mounting of filter tube is in on the acceptor, the filter tube with the acceptor communicates with each other, the slide rail has all been seted up on the both ends of rotatory transmission arm, the acceptor all is located in the slide rail, the both sides of slide rail are open mouth.

Preferably, equal fixed mounting has the restriction side ring on the both ends of rotatory transmission arm, the restriction side ring all with the slide rail pastes mutually, the spacing groove has all been seted up on the receiving piece, the restriction side ring all with spacing groove sliding fit, all be provided with a plurality of stoppers on the lateral wall of slide rail, the stopper is right the receiving piece carries on spacingly, equal fixed mounting has pressure sensor, one side on the both ends bottom of rotatory transmission arm pressure sensor's pressure detection face and homonymy the stopper links to each other, one side pressure sensor and homonymy electric control valve electric connection makes the stopper with after the mutual extrusion force between the receiving piece disappears, pressure sensor control electric control valve closes.

Preferably, separating mechanism still includes extension case, electric telescopic handle, control, fixed mounting has on the organism extend the case, extend the case with the organism communicates with each other, extend the case with the upper end of filter tube is located the coplanar, extend incasement upper end fixed mounting have electric telescopic handle, electric telescopic handle stretch on the pole fixed mounting have the control, running fit has on the control the separating ring.

Preferably, sliding fit has a control block on the control piece, and the control block extends to the inside of control piece, fixed mounting has the control to stretch the board on the control block, the control is stretched the board and is located in the control piece, the control is stretched the board and is run through the lateral wall of control piece makes the control block drives the control is stretched the board and is stretched out in order to right the separation ring carries out spacingly.

Preferably, the counting mechanism further comprises a supporting plate, a rotating rod, a linkage rod and a toothed belt, the supporting plate is fixedly mounted in the machine body, the rotating rod is rotatably matched with the supporting plate, the sheave turntable is fixedly mounted on the rotating rod, the linkage rods are fixedly mounted at two ends of the rotary transmission arm, when the linkage rods rotate along with the rotary transmission arm and pass through the sheave turntable, the sheave turntable is driven to rotate by the linkage rods, the toothed belt is tensioned between the rotating rod and the counter, and the toothed belt penetrates through the side wall of the machine body.

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

the natural preservative contains a wild soybean seed extract, a cinnamon extract, a clove extract and a magnolia bark extract, wherein the wild soybean seed extract is a pure natural substance extracted from seeds of wild soybeans and contains abundant flavonoids and soybean peptides, the flavonoids have the effect of inhibiting the growth of putrefying bacteria, and the soybean peptides also have oxidation resistance and antibacterial property; the cinnamon extract is rich in cinnamaldehyde, cinnamic acid, acetic acid cinnamon vinegar, acetic acid phenylpropyl ester, cinnamyl alcohol, coumarin and the like, has antibacterial and antiseptic effects, and particularly has strong inhibiting effects on staphylococcus aureus, escherichia coli and aspergillus niger; the clove extract is rich in eugenol, acetyl eugenol, caryophyllene, methyl salicylate and the like, has broad-spectrum antibacterial property, and particularly shows stronger antibacterial activity on gram-negative bacteria and gram-positive bacteria; the cortex magnoliae officinalis extract is rich in magnolol, has an inhibiting effect on almost common flora, and belongs to a totipotent natural preservative; compared with a chemical preservative, the preservative has good preservative effect and high safety performance;

the 1, 2-hexanediol, the caprylyl glycol and the 1, 2-pentanediol are added into the skin care product, and the polyalcohol can permeate into cell membranes of microorganisms to cause disorder and even breakage of the cell membranes, so that physiological barriers of the microorganisms are damaged, and the skin care product has a synergistic effect with a natural preservative to realize excellent preservative effect.

The chicory cream also contains a chicory extract, an agave extract, sodium hyaluronate and a bitter orange flower extract, wherein the chicory extract has biological activities of antibiosis, antioxidation, anti-inflammation, relieving and anti-allergy and the like, is widely applied to cosmetics and can play roles in preventing allergy, preserving moisture, preventing and treating acne, resisting aging and the like; the Agave americana extract can effectively inhibit the decomposition of hyaluronic acid, increase the water content of stratum corneum, moisturize skin, inhibit free histamine, inhibit allergy, inhibit elastase and collagenase activity, and prevent wrinkle; the sodium hyaluronate has effects of keeping moisture, keeping water content of collagen and corium layer in skin, maintaining elasticity of skin and connective tissue, keeping moisture, and preventing wrinkle; the neroli extract is used as a freshener in cosmetics, and can effectively help fat decomposition, reduce oil infiltration, stimulate microcirculation and promote skin regeneration; under the synergistic effect of the components, the skin care product not only can effectively realize the moisturizing effect of the skin care product, but also has the effects of repairing, preventing wrinkles and resisting allergy.

According to the filtering device, the two ends of the rotary transmission arm in a rotating state drive the grooved pulley rotary table to rotate once along with the rotation, so that the grooved pulley rotary table counts once when the counter rotates once, the separating ring separates the filtering pipe after the counter reaches quantitative counting, workers can clean or replace the separated filtering pipe, then the separating ring clamps the filtering pipe back to the rotary transmission arm again, the filtering pipe continues to filter the mixture after enzyme deactivation, the problem that insoluble particles such as filter residues are accumulated in the filtering structure to influence the filtering speed and a small amount of filter residues are extruded from meshes of the filtering net is effectively solved, and the filtering speed and the quality of filtrate (namely wild soybean seed extract) are guaranteed.

Drawings

Fig. 1 is a process for preparing a moisturizing skin care product containing natural preservatives according to the present invention;

FIG. 2 is a bar graph showing the water content of the stratum corneum of the skin after trial use of the moisturizing skin care products containing natural preservatives prepared in examples 2 to 6 of the present invention and comparative example 1;

FIG. 3 is a bar graph showing bacteriostatic properties of moisturizing skin care preparations containing natural preservatives prepared in examples 2 to 6 of the present invention and comparative example 2;

FIG. 4 is a perspective view of the filter device of the present invention and a schematic view of the internal structure of the filter device;

FIG. 5 is a schematic view of a filter mechanism of the filter device of the present invention;

FIG. 6 is a schematic view showing the structural distribution of the filter unit at the receiving part;

FIG. 7 is an enlarged view of the structure at A in FIG. 6;

FIG. 8 is a schematic view of the separating mechanism and the counting mechanism of the filtering apparatus according to the present invention;

FIG. 9 is a schematic view of the structure distribution of the sheave turntable of the filtering apparatus of the present invention;

fig. 10 is a schematic perspective view of the entire filter device of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.

Example 1

Preparation method of semen glycines extract

(2) Mixing the defatted soybean meal of the wild soybean seeds with pure water according to the mass ratio of 1;

(3) Adding a compound enzyme into the mixture subjected to the ultrasonic treatment for enzymolysis, and after the enzymolysis is finished, inactivating the enzyme to obtain an enzyme-inactivated mixture; filtering the mixture after enzyme deactivation, and collecting filtrate to obtain wild soybean seed extract;

the compound enzyme comprises pectinase, cellulase and protease which are mixed according to the mass ratio of 1; the mass ratio of the compound enzyme to the ultrasonic mixed material is 0.5; the enzymolysis temperature is 60 ℃, and the enzymolysis time is 2h.

Example 2

A method for preparing a moisturizing skin care product containing natural preservatives comprises the following steps:

(1) Mixing hydroxyethyl acrylate/acryloyl dimethyl sodium taurate copolymer, polysorbate-60, sorbitan isostearate and dioctyl carbonate according to a mass ratio of 1;

wherein the stirring speed is 5000r/min, and the stirring time is 10min;

(2) Adding herba Cichorii extract, herba Agastaches extract, sodium hyaluronate, and bitter orange flower extract into the emulsifying system, and stirring to obtain mixture;

wherein the stirring temperature is 40 ℃, the stirring speed is 500r/min, and the stirring time is 10min; the mass ratio of the chicory extract to the agave extract to the sodium hyaluronate to the bitter orange flower extract to the emulsifying system is 1;

(3) Stirring and mixing deionized water, EDTA disodium, butanediol, glycerol, 1, 2-hexanediol, octylene glycol and 1, 2-pentanediol to obtain a water phase system, mixing the water phase system and the mixture, and then continuously stirring to obtain a mixed emulsion;

wherein the stirring temperature is 70 ℃, the stirring speed is 2000r/min, and the stirring time is 30min; the continuous stirring speed is 6000r/min, and the continuous stirring time is 30min; deionized water, disodium EDTA, butanediol, glycerol, 1, 2-hexanediol, octaethylene glycol, 1, 2-pentanediol and the mixture in a mass ratio of 95;

(4) Adding wild soybean seed extract, cinnamon extract, clove extract and magnolia bark extract into the mixed emulsion, and stirring to obtain a moisturizing skin care product containing a natural preservative;

wherein the stirring temperature is 40 ℃, the stirring speed is 500r/min, and the stirring time is 30min; the weight ratio of the wild soybean seed extract to the cinnamon extract to the clove extract to the magnolia bark extract to the mixed emulsion is 3.

Example 3

(1) Mixing hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer, polysorbate-60, sorbitan isostearate and dioctyl carbonate according to a mass ratio of 1.2;

wherein the stirring speed is 5300r/min, and the stirring time is 8min;

wherein the stirring temperature is 43 ℃, the stirring speed is 530r/min, and the stirring time is 8min; the mass ratio of the chicory extract to the agave extract to the sodium hyaluronate to the bitter orange flower extract to the emulsification system is 1.1;

wherein the stirring temperature is 74 ℃, the stirring speed is 2000r/min, and the stirring time is 30min; the continuous stirring speed is 6500r/min, and the continuous stirring time is 30min; deionized water, disodium EDTA, butanediol, glycerol, 1, 2-hexanediol, octaethylene glycol, 1, 2-pentanediol, and the mixture in a mass ratio of 92;

(4) Adding the extract of the seeds of the wild soybean, the extract of the cinnamon, the extract of the clove and the extract of the bark of the magnolia officinalis into the mixed emulsion in sequence, and stirring to obtain the moisturizing skin care product containing the natural preservative;

wherein the stirring temperature is 41 ℃, the stirring speed is 520r/min, and the stirring time is 28min; the weight ratio of the wild soybean seed extract to the cinnamon extract to the clove extract to the magnolia bark extract to the mixed emulsion is 3.5.

Example 4

(1) Mixing hydroxyethyl acrylate/acryloyl dimethyl sodium taurate copolymer, polysorbate-60, sorbitan isostearate and dioctyl carbonate according to the mass ratio of 1.4;

wherein the stirring speed is 5500r/min, and the stirring time is 5min;

wherein the stirring temperature is 40 ℃, the stirring speed is 520r/min, and the stirring time is 10min; the mass ratio of the chicory extract to the agave extract to the sodium hyaluronate to the bitter orange flower extract to the emulsifying system is 1.2;

(3) Stirring and mixing deionized water, EDTA disodium, butanediol, glycerol, 1, 2-hexanediol, octylene glycol and 1, 2-pentanediol to obtain a water phase system, mixing the water phase system with the mixture, and then continuously stirring to obtain a mixed emulsion;

wherein the stirring temperature is 72 ℃, the stirring speed is 2600r/min, and the stirring time is 25min; the continuous stirring speed is 6400r/min, and the continuous stirring time is 25min; deionized water, disodium EDTA, butanediol, glycerol, 1, 2-hexanediol, octaethylene glycol, 1, 2-pentanediol and the mixture in a mass ratio of 93;

wherein the stirring temperature is 42 ℃, the stirring speed is 600r/min, and the stirring time is 30min; the mass ratio of the wild soybean seed extract, the cinnamon extract, the clove extract, the magnolia bark extract and the mixed emulsion is (4: 1.2).

Example 5

(1) Mixing hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer, polysorbate-60, sorbitan isostearate and dioctyl carbonate according to a mass ratio of 1.6;

wherein the stirring speed is 5400r/min, and the stirring time is 5min;

wherein the stirring temperature is 40 ℃, the stirring speed is 540r/min, and the stirring time is 10min; the mass ratio of the chicory extract to the agave extract to the sodium hyaluronate to the bitter orange flower extract to the emulsifying system is 1.3;

wherein the stirring temperature is 72 ℃, the stirring speed is 2600r/min, and the stirring time is 25min; the continuous stirring speed is 6400r/min, and the continuous stirring time is 25min; deionized water, disodium EDTA, butanediol, glycerol, 1, 2-hexanediol, octaethylene glycol, 1, 2-pentanediol and the mixture in a mass ratio of 94;

(4) Adding the extract of the wild soybean seeds, the extract of the cinnamon, the extract of the clove and the extract of the bark of the magnolia officinalis into the mixed emulsion in sequence, and stirring to obtain the moisturizing skin care product containing the natural preservative;

wherein the stirring temperature is 42 ℃, the stirring speed is 600r/min, and the stirring time is 30min; the weight ratio of the wild soybean seed extract, the cinnamon extract, the clove extract, the magnolia bark extract and the mixed emulsion is (4.5).

Example 6

(1) Mixing hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer, polysorbate-60, sorbitan isostearate and dioctyl carbonate according to a mass ratio of 2.0;

wherein the stirring speed is 5500r/min, and the stirring time is 4min;

wherein the stirring temperature is 40 ℃, the stirring speed is 560r/min, and the stirring time is 7min; the mass ratio of the chicory extract, the agave extract, the sodium hyaluronate, the bitter orange flower extract and the emulsification system is (1.4);

wherein the stirring temperature is 43 ℃, the stirring speed is 550r/min, and the stirring time is 25min; the weight ratio of the wild soybean seed extract to the cinnamon extract to the clove extract to the magnolia bark extract to the mixed emulsion is 5.

Comparative example 1

(1) Mixing hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer, polysorbate-60, sorbitan isostearate and dioctyl carbonate according to a mass ratio of 2.0; wherein the stirring speed is 5500r/min, and the stirring time is 4min;

(2) Stirring and mixing deionized water, EDTA disodium, 1, 2-hexanediol, capryl glycol and 1, 2-pentanediol to obtain a water phase system, mixing the water phase system with an emulsification system, and then continuously stirring to obtain a mixed emulsion;

wherein the stirring temperature is 72 ℃, the stirring speed is 2600r/min, and the stirring time is 25min; the continuous stirring speed is 6400r/min, and the continuous stirring time is 25min; deionized water, disodium EDTA, 1, 2-hexanediol, octaethylene glycol, 1, 2-pentanediol and the mixture in a mass ratio of 99;

(3) Adding the extract of the seeds of the wild soybean, the extract of the cinnamon, the extract of the clove and the extract of the bark of the magnolia officinalis into the mixed emulsion in sequence, and stirring to obtain the moisturizing skin care product containing the natural preservative;

The wild soybean seed extracts used in examples 2 to 6 of the present invention and comparative example 1 were the wild soybean seed extracts prepared by the method of example 1.

Comparative example 2

wherein the stirring speed is 5500r/min, and the stirring time is 4min;

wherein the stirring temperature is 40 ℃, the stirring speed is 560r/min, and the stirring time is 7min; the mass ratio of the chicory extract to the agave extract to the sodium hyaluronate to the bitter orange flower extract to the emulsifying system is 1.4;

(3) Stirring and mixing deionized water, EDTA disodium, butanediol and glycerol to obtain a water phase system, mixing the water phase system and the mixture, and then continuously stirring to obtain the moisturizing skin care product;

wherein the stirring temperature is 72 ℃, the stirring speed is 2600r/min, and the stirring time is 25min; the continuous stirring speed is 6400r/min, and the continuous stirring time is 25min; deionized water, disodium EDTA, butylene glycol, glycerin, and mixture in a mass ratio of 97.8.

In examples 2 to 6 and comparative examples 1 to 2, the chicory extract was provided by Seawa Secale Biotech, inc., cat #: 20200545; agave extract is provided by sienna huxin biotechnology limited, cat #: 216; the sodium hyaluronate is low molecular sodium hyaluronate, provided by Guangzhou Qingfeng daily chemical technology Co., ltd, and has a molecular weight of 20-40 ten thousand, a cargo number: AL857900103; the bitter orange flower extract is provided by the western Anhan Haoyu Kangze Biotech Co., ltd, the product number: HY-25122; cinnamon extract was provided by sycamore biotechnology limited, shanxi feng, with a cargo number: FQW-2120907; the clove extract is provided by sienna eupaxilu platinum biotechnology limited, cat #: 0165; the magnolia bark extract is provided by Zhenghe biological technology limited company, the product number is: L1-SCB1494; hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer is supplied by pool state kailong import & export trade limited, CAS number: 111286-86-3.

Testing one: measurement of Water content in horny layer

Subject: selecting 60 women without skin diseases as subjects, the age of which is 25-30 years, randomly dividing the women into 6 groups, wherein 10 persons in each group use the arms of the subjects as the tested areas, and the moisturizing skin care products prepared in examples 2-5 and comparative example 1 are respectively used as test samples;

the test method comprises the following steps: cleaning the inner sides of the forearms of both hands of each group of testees uniformly, and marking the inner sides of the forearms of both hands of the testees with a tested area, wherein the area of the tested area is 3cm multiplied by 3cm; in the marked area of the arm on one side, according to 2.0mg/cm ² Uniformly smearing the corresponding test sample by using the amount of the composition, wherein the marked tested area of the arm on the other side is a blank control area, and a test subject cannot smear any other emulsion except the tested sample on the test part during the test;

the moisturizing skin care products prepared in example 2 were used as one group of test samples, respectively, and are designated as test group 1; the moisturizing skin care products prepared in example 3 were used as one group of test samples, respectively, and recorded as test group 2; the moisturizing skin care products prepared in example 4 were used as one group of test samples, respectively, and are designated as test group 3; the moisturizing skin care products prepared in example 5 were used as one group of test samples, respectively, and recorded as test group 4; the moisturizing skin care products prepared in example 6 were used as one group of test samples, respectively, and are designated as test group 5; the moisturizing skin care products prepared in comparative example 1 were used as one group of test samples, respectively, and designated as test group 6;

the water content (mass percentage, expressed as%) of the stratum corneum was measured using a capacitance-type skin moisture meter in an environment where the test environment temperature was 20 ℃ and the relative humidity was 40%. The stratum corneum water content of the skin in the test areas 0h, 2h, and 8h after application of the test samples was measured, respectively, and the average of the test results of 10 subjects in each test group was recorded, as shown in table 1.

TABLE 1

As can be seen from the test results in Table 1, the water content of the stratum corneum of the skin measured in the blank control area is obviously reduced after 2 hours and 8 hours; after the tested area is coated with the moisturizing skin care products prepared in the examples 2-6, the water content of the horny layer is still stable after 2 hours and 8 hours; but the moisturizing performance of the skin care product was reduced because comparative example 1 removed the chicory extract, the agave extract, the sodium hyaluronate, the neroli extract, the butylene glycol and the glycerin, which mainly exert the moisturizing effect.

And (2) testing: paper sheet method for measuring bacteriostatic activity

Inoculating Escherichia coli (ATCC 8099) and Staphylococcus aureus (ATCC 6538) to the culture broth, and culturing at 37 deg.C for 24 hr; candida albicans (ATCC 10231) was inoculated into a Shabao liquid medium and cultured at 25 ℃ for 5d; aspergillus niger (ATCC 16404) is inoculated to a Chao's liquid culture medium and cultured for 6d at 25 ℃; then, the four test bacteria cultures were diluted to 1X 10 concentration with physiological saline, respectively ⁶ CFU/mL of bacterial suspension;

the bacterial suspensions of the above four test bacteria were applied to 90mm diameter nutrient agar plates with a coating weight of 100. Mu.L using sterile cotton swabs to prepare 6 bacterial lawn for each bacterial suspension. Then, using sterile tweezers to take a sterilization filter paper sheet with the diameter of 6mm to be pasted on a flat plate, then respectively slowly dripping 50 mu L of the moisturizing skin care product containing the natural preservative prepared in the examples 2-6 and the comparative example 2 from the center of the paper sheet, placing the flat plate coated with escherichia coli and staphylococcus aureus in a biochemical incubator, culturing for 24 hours at 37 ℃, and measuring and recording the diameter of a bacteriostatic ring; the plates coated with candida albicans and aspergillus niger were placed in a biochemical incubator, incubated at 28 ℃ for 48h, and the diameter of the zone of inhibition was measured and recorded, the results are shown in table 2.

TABLE 2

As can be seen from the test results in table 2, the moisturizing skin care products prepared in examples 2 to 6 have good bacteriostatic effects on staphylococcus aureus, escherichia coli, candida albicans, and aspergillus niger. However, as the comparative example 2 removes the 1, 2-hexanediol, the caprylyl glycol, the 1, 2-pentanediol, the wild soybean seed extract, the cinnamon extract, the clove extract and the magnolia bark extract in the skin care product, the substances mainly exert the antiseptic performance, so that the antiseptic performance of the prepared moisturizing product is reduced and the bacteriostatic effect is poor.

Example 7

The embodiment provides a filtering device, which can meet the requirement that when the wild soybean seed extract is prepared in the embodiment 1, compound enzyme is added into a mixture after ultrasonic treatment for enzymolysis, and after the enzymolysis is finished, the enzyme is deactivated to obtain a mixture after the enzyme is deactivated; filtering the mixture after enzyme deactivation, taking the filtrate to obtain the extract of the wild soybean seeds, and filtering the mixture after enzyme deactivation by adopting the filtering device.

As shown in fig. 4, the filtering device comprises a machine body 1, a filtering mechanism 2 arranged in the machine body 1, a separating mechanism 3 arranged outside the machine body 1 and a counting mechanism 4 arranged on the machine body 1, wherein the filtering mechanism 2 comprises a rotary transmission arm 25 and a filtering pipe 211, the filtering pipe 211 is movably arranged on both ends of the rotary transmission arm 25, so that the mixture after enzyme deactivation flows into the filtering pipe 211 through the rotary transmission arm 25 for filtering;

the separating mechanism 3 comprises a separating ring 34, the separating ring 34 is arranged outside the machine body 1, the separating ring 34 and the upper end of the filter pipe 211 are positioned in the same plane, so that the separating ring 34 separates the filter pipe 211 from the rotary transmission arm 25 and the separating ring 34 snaps the filter pipe 211 back to the rotary transmission arm 25;

the counting mechanism 4 comprises a sheave turntable 43 and a counter 45, and the sheave turntable 43 is connected with the counter 45 through a toothed belt;

the two ends of the rotary transmission arm 25 can drive the sheave turntable 43 to rotate when rotating, and the counter 45 counts the number of times of rotation of the sheave turntable 43, so that the separating ring 34 separates the filter pipe 211 after the counter 45 achieves quantitative counting.

Inputting the mixture after enzyme deactivation into the rotary transmission arm 25, transmitting the mixture after enzyme deactivation into the filter pipe 211 through the rotary transmission arm 25 for filtering, then rotating the rotary transmission arm 25, rotating both ends of the rotary transmission arm 25 along with the rotation, driving the sheave turntable 43 to rotate once when passing through the sheave turntable 43 each time, enabling the counter 45 to count once when the sheave turntable 43 rotates once, driving the control member 33 to move by the electric telescopic rod 32 in the extension box 31 after the counter 45 reaches quantitative counting, enabling the separation ring 34 to extend into the machine body 1 and extend onto the rotating path of the filter pipe 211 by the control member 33 to move, enabling the separation ring 34 to be in a limit state at the moment, enabling the filter pipe 211 to abut against the separation ring 34 along with the rotation of the filter pipe 211, separating the filter pipe 211 from the separation ring 34, separating the filter pipe 211 on one end of the rotary transmission arm 25, closing one end of the rotary transmission arm 25 through the electric control valve 29, then the separating ring 34 drives the filtering pipe 211 to move out of the machine body 1, so that the worker can clean or replace the separated filtering pipe 211, then the separating ring 34 can be adjusted to be in an unlimited state, so that the separating ring 34 drives the cleaned or replaced filtering pipe 211 to move to a path along which the filtering pipe 211 rotates again, after the filtering pipe 211 is connected with one end of the separated rotary transmission arm 25, the filtering pipe 211 is clamped back into the sliding rail 212 on the rotary transmission arm 25, along with the rotation of the rotary transmission arm 25, the filtering pipe 211 drives the separating ring 34 to rotate, so that the separating ring 34 is rotated to be separated from the rotating path of the filtering pipe 211, so as to separate the filtering pipe 211 from the separating ring 34, so that the filtering pipe 211 is clamped back onto the rotary transmission arm 25 again, at this time, one end of the rotary transmission arm 25 which is clamped back to the filtering pipe 211 is opened again, and the mixture after the enzyme is transmitted and deactivated is filtered continuously, the problem that insoluble particles such as filter residues can be accumulated in a filter structure to influence the filtering speed along with continuous filtering of the mixture after enzyme deactivation is effectively solved, and the condition that a small amount of filter residues are extruded from meshes of a filter screen is avoided, so that the filtering speed, the filtering efficiency of the mixture after enzyme deactivation and the quality of filtrate are ensured.

Preferably, as shown in fig. 5, the filtering pipe 211 may include a pipe body, a plurality of filtering through holes are distributed on the pipe body, an upper end of the pipe body is an open end, a lower end of the pipe body is a sealed end, the sealed end of the pipe body is provided with a sealed end cap, the sealed end cap is provided with a plurality of filtering through holes, the open end of the upper end of the pipe body has an outward-turning edge extending outward from an outer circumferential surface of the pipe body, and the outward-turning edge is used for sealing an outer circumferential edge of the open end.

Preferably, the outward turning edge of the filter tube 211 is a conical structure extending forwards along the axial direction of the tube body, the inclination of the outward turning edge of the conical structure is between 70 degrees and 75 degrees, and one side surface and the other side surface on the outward turning edge are conical ring surfaces.

Preferably, the inclination of the everting edge may be chosen at other angles depending on the application.

Further, as shown in fig. 4-6, the filtering mechanism 2 further includes a motor 21, a first gear 22, a driving rod 23, and a second gear 24, the motor 21 is fixedly mounted on the machine body 1, an output shaft of the motor 21 penetrates through the machine body 1, the first gear 22 is fixedly mounted on the output shaft of the motor 21, the first gear 22 is located in the machine body 1, the driving rod 23 is rotatably fitted in the machine body 1, the second gear 24 is fixedly mounted on the driving rod 23, the second gear 24 is engaged with the first gear 22, and the rotary transmission arm 25 is fixedly mounted at the bottom end of the driving rod 23.

Further, the size of the second gear 24 is larger than that of the first gear 22 so that it forms a reduction gear transmission, or the rotation speed of the motor 21 is set to a small rotation speed so that the rotation speed of the rotation transmission arm 25 is low.

Wherein, motor 21 drives first gear 22 and rotates, and first gear 22 drives second gear 24 and rotates, and second gear 24 drives actuating lever 23 and rotates, and actuating lever 23 drives rotatory transmission arm 25 and rotates, makes rotatory transmission arm 25 in order to cooperate the structure operation better in organism 1 internal rotation.

Further, as shown in fig. 5 and 6, a bearing 26 is disposed on the rotary transmission arm 25, the driving rod 23 penetrates through the bearing 26, a transmission box 27 is disposed on the bearing 26, the driving rod 23 penetrates through the transmission box 27, the driving rod 23 is in running fit with the transmission box 27, the transmission box 27 is communicated with the rotary transmission arm 25, a feeding pipe 28 is fixedly mounted on the transmission box 27, the feeding pipe 28 penetrates through a side wall of the machine body 1, and the feeding pipe 28 is communicated with the transmission box 27.

Further, the inner ring of the bearing 26 is connected and sealed with the rotary transmission arm 25, the transmission box 27 is connected and sealed with the outer ring of the bearing 26, and the rotation fit of the driving rod 23 and the transmission box 27 is sealed, so that the mixture after enzyme deactivation does not flow to the outside when flowing from the transmission box 27 into the rotary transmission arm 25 through the bearing 26.

Wherein the mixture after enzyme deactivation flows in from the feeding pipe 28, through the feeding pipe 28 to the transferring box 27, and the mixture after enzyme deactivation flows in from the transferring box 27 through the bearing 26 into the rotating transferring arm 25.

Further, as shown in fig. 5 and 6, the two ends of the rotary transmission arm 25 are both fixedly provided with the electric control valves 29, the electric control valves 29 control transmission paths from the inside of the rotary transmission arm 25 to the two ends, the two ends of the rotary transmission arm 25 are both movably provided with the receiving parts 210, the receiving parts 210 are communicated with the rotary transmission arm 25, the filter pipes 211 are both fixedly arranged on the receiving parts 210, the filter pipes 211 are communicated with the receiving parts 210, the two ends of the rotary transmission arm 25 are both provided with the slide rails 212, the receiving parts 210 are both located in the slide rails 212, and both sides of the slide rails 212 are open ports.

The adapting piece 210 can drive the filter tube 211 to slide out of the slide rail 212, and after the adapting piece 210 drives the filter tube 211 to separate from the rotary transmission arm 25, the electric control valve 29 is closed, so that the electric control valve 29 closes one end of the rotary transmission arm 25, and after the filter tube 211 is separated from the rotary transmission arm 25, the end of the rotary transmission arm 25 is closed to stop flowing out of the mixture after enzyme deactivation.

Further, as shown in fig. 6 and 7, both ends of the rotary transmission arm 25 are fixedly provided with limiting side rings 213, the limiting side rings 213 are attached to the sliding rail 212, the receiving member 210 is provided with limiting grooves 214, the limiting side rings 213 are slidably fitted with the limiting grooves 214, the side wall of the sliding rail 212 is provided with a plurality of limiting blocks 215, the limiting blocks 215 limit the receiving member 210, the bottoms of both ends of the rotary transmission arm 25 are fixedly provided with pressure sensors 216, the pressure detection surfaces of the pressure sensors 216 on one side are in power connection with the limiting blocks 215 on the same side, the pressure sensors 216 on one side are electrically connected with the electronic control valve 29 on the same side, and after the mutual extrusion force between the limiting blocks 215 and the receiving member 210 disappears, the pressure sensors 216 control the electronic control valve 29 to close.

After the bearing 210 is separated from the limiting block 215, the bearing 210 is slidably moved out in the sliding rail 212 by the mutual limitation between the limiting side ring 213 and the limiting groove 214, and after the extrusion force of the limiting block 215 to the bearing 210 disappears, the pressure sensor 216 controls the electronic control valve 29 to close.

Further, as shown in fig. 4, fig. 8 and fig. 9, the separating mechanism 3 further includes an extension box 31, an electric telescopic rod 32 and a control member 33, the extension box 31 is fixedly mounted on the machine body 1, the extension box 31 is communicated with the machine body 1, the extension box 31 is opposite to the filter pipe 211, the electric telescopic rod 32 is fixedly mounted at the upper end in the extension box 31, the control member 33 is fixedly mounted on an extension rod of the electric telescopic rod 32, and the separating ring 34 is rotatably fitted on the control member 33.

Further, the release ring 34 can only be rotated in the opposite direction to the rotation of the rotation transmission arm 25.

Preferably, the separating ring 34 is a semi-arc structure, the semi-arc opening of the separating ring 34 is opposite to the rotation direction of the rotating transmission arm 25, and the separating ring 34 and the bearing part 210 are located on the same horizontal plane.

The control member 33 is driven by the electric telescopic rod 32 in the extension box 31 to move, the control member 33 drives the separating ring 34 to move, so that the separating ring 34 moves to a path where the filter pipe 211 rotates, at the moment, the separating ring 34 is in a limiting state, the receiving member 210 rotates into the separating ring 34 along with the rotation of the rotary transmission arm 25, the separating ring 34 limits the receiving member 210, so that the receiving member 210 is separated from the limiting blocks 215 under stress, along with the continuous rotation of the rotary transmission arm 25, the receiving member 210 carries the filter pipe 211 to remain on the separating ring 34, then, the electric telescopic rod 32 drives the separating ring 34 to reset, when the separating ring 34 is retracted into the extension box 31, and along with the movement of the separating ring 34 into the extension box 31, a worker can clean or replace the separated filter pipe 211.

Further, as shown in fig. 9, a control block 35 is slidably fitted on the control member 33, the control block 35 extends into the control member 33, a control extension plate 36 is fixedly mounted on the control block 35, the control extension plate 36 is located in the control member 33, and the control extension plate 36 penetrates through a side wall of the control member 33, so that the control block 35 drives the control extension plate 36 to extend out to limit the separation ring 34.

The control block 35 drives the control extension plate 36 to extend out to limit and clamp the separation ring 34, that is, the separation ring 34 is in a limiting state, so that the separation ring 34 cannot rotate, the control block 35 drives the control extension plate 36 to retract into the control part 33, that is, the separation ring 34 is in a non-limiting state, so that the separation ring 34 can rotate, and the separation ring 34 is ensured to be capable of separating the filter pipe 211 and being buckled back again.

Further, as shown in fig. 4, 8, and 9, the counting mechanism 4 further includes a supporting plate 41, a rotating rod 42, a linking rod 44, and a toothed belt 46, the supporting plate 41 is fixedly installed in the machine body 1, the rotating rod 42 is rotatably engaged with the supporting plate 41, the sheave turntable 43 is fixedly installed on the rotating rod 42, the linking rod 44 is fixedly installed at both ends of the rotary transmission arm 25, so that when the linking rod 44 rotates with the rotary transmission arm 25 and passes through the sheave turntable 43, the linking rod 44 drives the sheave turntable 43 to rotate once, the toothed belt 46 is tensioned between the rotating rod 42 and the counter 45, and the toothed belt 46 penetrates through the side wall of the machine body 1.

Further, the counter 45 is fixedly mounted on the extension case 31.

Wherein, along with rotatory transmission arm 25 rotates, when trace 44 passes through sheave carousel 43 at every turn, trace 44 drive sheave carousel 43 once rotates, sheave carousel 43 rotates at every turn and drives bull 42 and rotate, bull 42 drives the cingulum 46 and rotates, cingulum 46 drives counter 45 and counts once, make counter 45 reach make after the ration count separating ring 34 get into in organism 1 in order to separate filter tube 211, make the staff clear up or change the filter tube 211 that separates, avoid filter tube 211 to filter for a long time and lead to insoluble particle such as the filter residue of filtering out can pile up in filter tube 211, and the condition that a small amount of filter residue was extruded appears in the mesh of filter tube 211.

Further, as shown in fig. 10, a hinge 51 is provided at the top end of the machine body 1, a top cover 52 is rotatably fitted at the top end of the machine body 1, the top cover 52 is connected with the hinge 51, a plurality of pressing knobs 53 are provided at the top of the side wall of the machine body 1, the pressing knobs 53 are used for pressing and fixing the top cover 52, and a discharge pipe 54 is provided at the bottom end of the machine body 1.

The mixture after enzyme deactivation is input into the rotary transmission arm 25, the mixture after enzyme deactivation is transmitted into the filter pipe 211 for filtration through the rotary transmission arm 25, the rotation transmission arm 25 is then rotated, and with this rotation, both ends of the rotation transmission arm 25 are rotated, each time passing the sheave turntable 43, the sheave turntable 43 is driven to rotate once, the counter 45 counts once when the sheave turntable 43 rotates once, and after the counter 45 reaches the quantitative counting, the control member 33 is driven by the electric telescopic rod 32 in the extension box 31 to move, the control member 33 drives the separating ring 34 to move, so that the separating ring 34 extends into the machine body 1 and extends to a rotating path of the filtering pipe 211, at the moment, the separating ring 34 is in a limiting state, and as the filtering pipe 211 rotates and abuts against the separating ring 34, the filtering pipe 211 is separated by the separating ring 34, and after the filtering pipe 211 on one end of the rotation transfer arm 25 is separated, one end of the rotation transfer arm 25 is closed through the electric control valve 29, then the separating ring 34 drives the filtering pipe 211 to move out of the machine body 1, so that the worker can clean or replace the separated filtering pipe 211, then the separating ring 34 can be adjusted to an unlimited state, so that the separating ring 34 drives the cleaned or replaced filtering pipe 211 to move to the path of the filtering pipe 211 again, after the filtering pipe 211 is contacted with one end of the separated rotary transmission arm 25, the filter pipe 211 is clamped back to the rotary transmission arm 25, and along with the rotation of the rotary transmission arm 25, the filter pipe 211 drives the separating ring 34 to rotate, so that the separating ring 34 rotates to be separated from the rotating path of the filter pipe 211, to separate the filter tube 211 from the separating ring 34, so that the filter tube 211 is re-clamped back onto the rotary transferring arm 25, and at this time, one end of the rotary transferring arm 25 re-clamped back into the filter tube 211 is opened again to continue filtering the mixture after transferring the enzyme;

the mixture after enzyme deactivation flows in from the feeding pipe 28, flows into the transmission box 27 through the feeding pipe 28, flows into the rotary transmission arm 25 from the transmission box 27 through the bearing 26, flows into the filter pipe 211 after enzyme deactivation through the rotary transmission arm 25 for filtering, then the motor 21 drives the first gear 22 to rotate, the first gear 22 drives the second gear 24 to rotate, the second gear 24 drives the driving rod 23 to rotate, the driving rod 23 drives the rotary transmission arm 25 to rotate, the linkage rod 44 drives the grooved pulley 43 to rotate once when the linkage rod 44 passes through the grooved pulley 43 each time, the turntable 43 drives the grooved pulley 42 to rotate each time, the rotary rod 42 rotates to drive the toothed belt 46 to rotate, the toothed belt 46 drives the counter 45 to count once, so that the counter 45 controls the separation ring 34 to enter the machine body 1 after quantitative counting, so as to separate the filter pipe 211;

then, the electric telescopic rod 32 in the extension box 31 drives the control member 33 to move, the control member 33 drives the separating ring 34 to move, so that the separating ring 34 moves to a path where the filter pipe 211 rotates, at this time, the separating ring 34 is in a limiting state, the receiving member 210 rotates into the separating ring 34 along with the rotation of the rotation transmission arm 25, at this time, the separating ring 34 limits the receiving member 210, so that the receiving member 210 is separated from the limit between the limit blocks 215, the receiving member 210 is limited by the mutual limit between the limiting side ring 213 and the limit groove 214, so that the receiving member 210 slides out in the slide rail 212, so that the receiving member 210 is forced to be separated from between the limit blocks 215, and along with the continuous rotation of the rotation transmission arm 25, the receiving member 210 carries the filter pipe 211 to remain on the separating ring 34, and along with the separation ring 34 moves to the extension box 31, at the same time, the control block 35 drives the control extension plate 36 to extend out to limit and clamp the separation ring 34, at this time, the state of the separation ring 34 is a limit state, so that the separation ring 34 cannot rotate, and the control block 35 drives the control extension plate 36 to retract into the control element 33, at this time, the state of the separation ring 34 is an unlimited state, so that the separation ring 34 can rotate, so that the separation ring 34 extends into the separation pipe 211 to separate the filter pipe 211 when in the limit state, and the separation ring 34 extends into the separation pipe 211 to clip the filter pipe 211 again when in the unlimited state, so that the worker can clean or replace the separated filter pipe 211 and clip the filter pipe 211 back onto the rotary transmission arm 25 again;

meanwhile, after the adapting piece 210 is separated from the limiting block 215, the adapting piece 210 is limited by the limiting side ring 213 and the limiting groove 214 to slide and move out in the sliding rail 212, and after the extrusion force of the limiting block 215 on the limiting of the adapting piece 210 disappears, the pressure sensor 216 controls the electric control valve 29 to be closed, so that after the filter pipe 211 is separated from the rotary transmission arm 25, the end of the rotary transmission arm 25 is closed to stop flowing out of the mixture after enzyme deactivation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A preparation method of a moisturizing skin care product containing natural preservatives is characterized by comprising the following steps:

step two, adding the chicory extract, the agave extract, the sodium hyaluronate and the bitter orange flower extract into the emulsification system, and stirring to obtain a mixture;

the wild soybean seed extract is prepared by the following steps:

(1) Carrying out degreasing treatment on the wild soybean seeds to obtain wild soybean seed degreased soybean meal;

(2) Mixing the defatted soybean meal of the wild soybean seeds and pure water according to the mass ratio of 1;

(3) Adding a compound enzyme into the mixture subjected to the ultrasonic treatment for enzymolysis, and after the enzymolysis is finished, inactivating the enzyme to obtain an enzyme-inactivated mixture; filtering the mixture after enzyme deactivation, and collecting the filtrate to obtain the extract of the wild soybean seeds.

2. The method for preparing a moisturizing skin care product containing natural preservatives according to the claim 1, wherein in the step one, the mass ratio of the hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer, the polysorbate-60, the sorbitan isostearate and the dioctyl carbonate is (1-2): (2-4).

3. The method for preparing a moisturizing skin care product containing the natural preservative according to claim 1, wherein in the second step, the mass ratio of the chicory extract, the agave extract, the sodium hyaluronate, the bitter orange flower extract and the emulsifying system is (1-2): (7-14).

4. The method for preparing the moisturizing skin care product containing the natural preservative according to claim 1, wherein in the third step, the mass ratio of the deionized water, the disodium EDTA, the butanediol, the glycerol, the 1, 2-hexanediol, the octylene glycol, the 1, 2-pentanediol and the mixture is (92-95) to 1 (2-3) to (2-4) to (1-1.6) to (11-19.2).

5. The method for preparing the moisturizing skin care product containing the natural preservative according to claim 1, wherein the mass ratio of the wild soybean seed extract, the cinnamon extract, the clove extract, the magnolia bark extract and the mixed emulsion in the fourth step is (3-5) to 1.4 (1-1.4) to (114-124).

6. A moisturizing skin care product containing natural preservatives prepared by the preparation method of the moisturizing skin care product containing natural preservatives as claimed in any one of claims 1 to 5.

7. A filtering device for use in the method for preparing a moisturizing skin care product containing natural preservatives according to any one of claims 1 to 5, comprising a body, a filtering mechanism disposed in the body, a separating mechanism disposed outside the body, and a counting mechanism disposed on the body, wherein:

the filter mechanism comprises a rotary transmission arm and filter pipes, wherein the filter pipes are movably mounted at two ends of the rotary transmission arm, so that the mixture after enzyme deactivation flows into the filter pipes through the rotary transmission arm to be filtered;

the separation mechanism comprises a separation ring, the separation ring is arranged outside the machine body and is positioned in the same plane with the top end of the filter pipe, so that the separation ring separates the filter pipe from the rotary transmission arm and enables the separation ring to clamp the filter pipe back to the rotary transmission arm again;

the two ends of the rotary transmission arm can drive the grooved pulley rotating disc to rotate when the rotary transmission arm rotates, and meanwhile, the counter counts the rotation times of the grooved pulley rotating disc, so that the separating ring separates the filter pipe after the counter achieves quantitative counting.

8. The filtering apparatus as claimed in claim 7, wherein the filtering mechanism further comprises a motor, a first gear, a driving rod, and a second gear, the motor is fixedly mounted on the machine body, an output shaft of the motor penetrates through the machine body, the first gear is fixedly mounted on the output shaft of the motor, the first gear is located in the machine body, the driving rod is rotatably fitted in the machine body, the second gear is fixedly mounted on the driving rod, the second gear is engaged with the first gear, and the rotation transmission arm is fixedly mounted at a bottom end of the driving rod.

9. The filtering device according to claim 8, wherein a bearing is arranged on the rotary transmission arm, the driving rod penetrates through the bearing, a transmission box is arranged on the bearing, the driving rod penetrates through the transmission box, the driving rod is in running fit with the transmission box, the transmission box is communicated with the rotary transmission arm, a feeding pipe is fixedly arranged on the transmission box, the feeding pipe penetrates through the side wall of the machine body, and the feeding pipe is communicated with the transmission box;

equal fixed mounting has automatically controlled valve on the both ends of rotatory transmission arm, automatically controlled valve control rotatory transmission arm is inside to the transmission route at both ends, equal movable mounting has the acceptor on the both ends of rotatory transmission arm, the acceptor with rotatory transmission arm communicates with each other, the equal fixed mounting of filter tube is in on the acceptor, the filter tube with the acceptor communicates with each other, the slide rail has all been seted up on the both ends of rotatory transmission arm, the acceptor all is located in the slide rail, the both sides of slide rail are open mouth.

10. The filtering device according to claim 9, wherein limiting side rings are fixedly mounted at both ends of the rotary transmission arm, the limiting side rings are attached to the sliding rail, limiting grooves are formed in the receiving member, the limiting side rings are in sliding fit with the limiting grooves, a plurality of limiting blocks are arranged on the side wall of the sliding rail, the limiting blocks limit the receiving member, pressure sensors are fixedly mounted at the bottoms of both ends of the rotary transmission arm, pressure detection surfaces of the pressure sensors are connected with the limiting blocks at the same side in a power mode, the pressure sensors are electrically connected with the electric control valve at the same side, so that after mutual extrusion force between the limiting blocks and the receiving member disappears, the pressure sensors control the electric control valve to be closed.