CN110694098A

CN110694098A - Natural plant essential oil sterilization sanitary towel and preparation method thereof

Info

Publication number: CN110694098A
Application number: CN201810749210.9A
Authority: CN
Inventors: 许旭东; 朱霄伟; 马国需; 朱乃亮; 王滨
Original assignee: Triangle Mountain Beijing Biotechnology Co ltd; Xinyang Triangle Mountain Biotechnology Co ltd; Institute of Medicinal Plant Development of CAMS and PUMC
Current assignee: Triangle Mountain Beijing Biotechnology Co ltd; Xinyang Triangle Mountain Biotechnology Co ltd; Institute of Medicinal Plant Development of CAMS and PUMC
Priority date: 2018-07-10
Filing date: 2018-07-10
Publication date: 2020-01-17

Abstract

A natural plant essential oil sterilizing sanitary towel and a preparation method thereof. The sanitary napkin comprises a surface layer, a moisture absorption layer and a bottom layer, wherein the surface layer is sprayed with a bactericide, the bactericide comprises: 3 to 5 percent of ethanol, 1.0 to 1.5 percent of rhizoma atractylodis volatile oil, 0.8 to 1.2 percent of cassia twig volatile oil, 0.5 to 1.0 percent of cocamide DEA, 3 to 4 percent of sodium lauryl ether sulfate, 2.0 to 3.0 percent of TEA lauryl sodium sulfate, 5 to 8 percent of glycerin, 0.2 to 0.3 percent of borneol and 0.3 to 0.5 percent of edible essence. The sterilizing sanitary towel can keep the sterile and dry environment of the vagina for a long time, effectively avoids troubles caused by bacterial infection in the menstrual period of women, and does not stimulate the skin.

Description

Natural plant essential oil sterilization sanitary towel and preparation method thereof

Technical Field

The invention relates to a sterilization sanitary towel containing pure natural plant extract or essential oil.

Background

Disposable sanitary products, also known as absorbent disposable products, include feminine napkins, pantiliners, tampons, baby diapers, adult diapers and other adult incontinence products, pet pads, and the like. In the process of using the disposable sanitary product, the product is mostly in direct contact with the skin of a user, so that the discomfort of the user caused by the contact with the skin is reduced to the maximum extent in addition to the sanitary and safety characteristics of the product. The female has poor resistance in menstrual period, and various maladies of the body can be caused by careless adjustment. In early years, 38% of people can suffer from serious gynecological diseases by using unqualified sanitary towels; 73% of women will feel local skin itching, burning and burning pain during the menstrual period; about 80% of women also have symptoms such as high fever, headache, abdominal pain, etc. The reason is that the external environments of the pelvic cavity, the uterus and the cervix of the female are communicated, and the reproductive system of the female is easily attacked by external pathogenic substances due to the structure. Especially during menstruation, the resistance of the reproductive organs is reduced, and is more fragile than usual, and if an substandard sanitary napkin is used, infection is likely to occur. Menstrual blood is rich in nutrients, and therefore, it becomes a "culture medium" for the growth of bacteria. An experiment shows that after the common sanitary towel is continuously used for 2 hours, the total number of surface layer bacteria can reach 107 per square centimeter, potential safety hazards can be brought to women during the use period of the sanitary towel, and the problem can be thoroughly solved only by effective bacteriostasis during the use period.

At present, the sanitary napkins on the market are limited to surface layer antibacterial treatment, the antibacterial effect is reflected in the prevention of secondary pollution, and the components exerting the antibacterial effect are mostly industrial synthetic raw materials, so that potential side effects exist in long-term use.

Disclosure of Invention

The invention aims to provide a sanitary towel containing a natural bactericide.

According to a first aspect of the present invention, there is provided a sanitary napkin comprising a top sheet, a moisture-absorbing layer and a bottom sheet, wherein the top sheet is sprayed with a disinfectant comprising: 3 to 5 percent of ethanol, 1.0 to 1.5 percent of rhizoma atractylodis volatile oil, 0.8 to 1.2 percent of cassia twig volatile oil, 0.5 to 1.0 percent of cocamide DEA, 3 to 4 percent of sodium lauryl ether sulfate, 2.0 to 3.0 percent of TEA lauryl sodium sulfate, 5 to 8 percent of glycerin, 0.2 to 0.3 percent of borneol and 0.3 to 0.5 percent of edible essence.

According to a preferred embodiment of the present invention, the bactericide may include: 3 to 5 percent of ethanol, 1.0 to 1.2 percent of rhizoma atractylodis volatile oil, 0.8 to 1.0 percent of cassia twig volatile oil, 0.5 to 1.0 percent of cocamide DEA, 3 to 4 percent of sodium lauryl ether sulfate, 2.0 to 3.0 percent of TEA lauryl sodium sulfate, 5 to 8 percent of glycerin, 0.2 to 0.3 percent of borneol and 0.3 to 0.5 percent of edible essence.

According to a further preferred embodiment of the present invention, the bactericide may comprise: 3 to 5 percent of ethanol, 1.0 to 1.5 percent of rhizoma atractylodis volatile oil, 0.8 to 1.2 percent of cassia twig volatile oil, 0.1 to 0.3 percent of common cnidium fruit volatile oil, 0.5 to 1.0 percent of cocamide DEA, 3 to 4 percent of sodium lauryl ether sulfate, 2.0 to 3.0 percent of TEA lauryl sodium sulfate, 5 to 8 percent of glycerol, 0.2 to 0.3 percent of borneol and 0.3 to 0.5 percent of edible essence. The addition of a small amount of cnidium fruit oil can further shorten the killing time and improve the sterilizing effect, thereby obtaining better sterilizing and itching relieving effects.

According to a further preferred embodiment of the present invention, the bactericide may further optionally comprise 0.1% to 0.2% of a plant volatile oil selected from the group consisting of sophora flavescens, mint, pulsatilla root and brucea javanica, to further enhance the insecticidal and antipruritic effects.

According to an embodiment of the present invention, the rest of the components in the bactericide are preferably purified water.

According to a second aspect of the present invention, there is provided a method of producing a sanitary napkin, comprising preparing a bactericide and spraying the bactericide onto a surface layer of the sanitary napkin, wherein the preparing the bactericide comprises:

mixing purified water and ethanol uniformly;

then adding the cocamide DEA, the sodium lauryl ether sulfate, the TEA sodium dodecyl sulfate, the soda, the baking soda, the glycerol and the edible essence respectively;

stirring to fully dissolve; and

finally adding the atractylodes oil and the cassia twig oil, and uniformly stirring.

The moisture absorption core of the sanitary towel can be sequentially composed of a seepage-proof layer, a super-strong seepage layer, a high-molecular water-locking layer, a dispersive breathable basement membrane and release paper. The sanitary napkin of the present invention can also be produced by spraying the above-mentioned antibacterial agent onto the surface layer of a commercially available sanitary napkin. The spraying amount of the antibacterial agent is 80-200g/m²。

According to the production method of the present invention, wherein the vegetable oil such as atractylodes rhizome oil and/or cassia twig oil and/or cnidium fruit oil is preferably continuously prepared by the following process:

adding rhizoma Atractylodis rhizome powder and/or ramulus Cinnamomi powder and/or fructus Cnidii powder into an extractor equipped with a screw conveyer;

heating a first liquid storage tank filled with purified water to generate steam;

condensing the vapor into liquid water by a cooler, and introducing the liquid water into an extractor to immerse rhizoma atractylodis rhizome powder and/or cassia twig powder and/or fructus cnidii powder;

when the liquid level in the extractor is higher than the highest point of a siphon pipe connecting the extractor and the first liquid storage tank, the extracting solution in the extractor automatically enters the first liquid storage tank through the siphon pipe;

when the extract in the extractor turns colorless, starting a screw conveyor in the extractor to discharge rhizoma atractylodis rhizome wet powder and/or cassia twig wet powder and/or fructus cnidii wet powder out of the extractor, and simultaneously adding (fresh) rhizoma atractylodis rhizome powder and/or cassia twig powder and/or fructus cnidii powder into the extractor;

stopping heating the first liquid storage tank and simultaneously starting the second liquid storage tank to continue the steps; and

separating the extractive solution in the first liquid storage tank to obtain rhizoma Atractylodis oil and/or ramulus Cinnamomi oil and/or oleum Cnidii.

According to a preferred embodiment of the present invention, the vegetable oil extraction process is performed after mixing the rhizome powder of atractylodes rhizome and the powder of cinnamomum cassia twig, and optionally the powder of cnidium monnieri in proportion. In this case, since the active plant components undergo a high-temperature reaction bonding process during extraction, a stronger synergistic bactericidal effect can be formed.

The volatile oil of rhizoma Atractylodis of the present invention can be extracted from dried rhizome of Atractylodes lancea or Atractylodes chinensis of Atractylodes of Compositae. The rhizoma Atractylodis volatile oil mainly contains volatile substances such as beta-eucalyptol, atractylodin, atractylone, atractylol, elemene oleyl alcohol, etc. Not only can kill mycobacterium tuberculosis, pseudomonas aeruginosa and the like in the air to a certain extent, but also has strong killing effect on escherichia coli and staphylococcus aureus.

The (cinnamon twig) volatile oil of the invention can be extracted from the dried tender branches of cinnamon belonging to the family lauraceae. The cassia twig volatile oil mainly contains volatile substances such as benzaldehyde, phenylpropyl aldehyde, trans-cinnamic aldehyde, cinnamic aldehyde and the like, and has remarkable antibacterial, sedative, analgesic and other effects.

The inventor finds that the main active ingredients of atractylol and the like in the atractylodes volatile oil and the main active ingredient of cinnamaldehyde and the like in the cassia twig volatile oil have synergistic bactericidal effects, the atractylol and the cinnamaldehyde are combined in a specific proportion, the total dosage is reduced, and meanwhile, the atractylodes volatile oil and the cinnamaldehyde have obvious killing and inhibiting effects on staphylococcus aureus, candida albicans, streptococcus and anaerobic streptococcus.

Although the invention can also be practiced by conventional extraction techniquesSurgery such as CO₂Supercritical (or subcritical) fluid extraction is used to extract plant (volatile) oils such as rhizoma Atractylodis volatile oil and/or ramulus Cinnamomi volatile oil, but the present invention preferably achieves rapid industrial scale extraction of plant oils by the following extraction system.

Thus, according to a third aspect of the present invention, there is also provided a vegetable (volatile) oil extraction system comprising:

an extractor having a charging port and a discharging port, in which a screw conveyor is provided;

the first liquid storage tank is selectively communicated with the extractor through a first gas-liquid part loop and a first siphon part loop respectively;

the second liquid storage tank is selectively communicated with the extractor through a second gas-liquid part loop and a second siphon part loop respectively;

a cooler disposed on the first and second gas-liquid portion circuits adjacent the extractor.

According to the extraction system, the first gas-liquid partial loop comprises a first vertical pipeline communicated with the top of the first liquid storage tank, a common vertical pipeline communicated with the top of the extractor, and a horizontal pipeline communicated with the first vertical pipeline and the extractor and provided with a valve; the second gas-liquid part loop comprises a second vertical pipeline communicated with the top of the second liquid storage tank, a common vertical pipeline communicated with the top of the extractor, and a horizontal pipeline communicated with the second vertical pipeline and the extractor and provided with a valve; and the first siphon part loop and the second siphon part loop are respectively provided with a valve.

According to the extraction system of the invention, the first siphon portion circuit and the second siphon portion circuit respectively have an upward bent portion and their highest point is lower than the top of the extractor.

The pure natural plant essential oil sterilization sanitary towel can inhibit and kill bacteria and reduce bacterial plaque; is safe and environment-friendly, and can effectively inhibit the infection of mould and fungus. The sanitary towel is nontoxic and harmless, is green and environment-friendly, has no stimulation and side effect on human bodies, and has quick and lasting killing effect on common harmful bacteria such as staphylococcus aureus, candida albicans, escherichia coli, streptococcus and the like.

The invention also uses a high-efficiency (uninterrupted) vegetable oil extraction system, thereby greatly improving the production efficiency of the vegetable oil and realizing the industrialized mass production of the pure natural plant bactericide. This is incomparable with conventional laboratory extraction techniques.

The bactericide formula disclosed by the invention has the excellent sterilizing and itching relieving performances, and also has stable uniformity, good cleaning and skin moistening performances and the like by organically combining a plurality of auxiliary agents and the plant sterilizing essential oil.

Drawings

Fig. 1 is a schematic diagram of a vegetable oil extraction system (apparatus) according to the present invention.

Detailed Description

Vegetable oil extraction

The invention designs a rapid (uninterrupted) vegetable oil extraction system to meet the requirements of vegetable oil raw materials required in the industrial production of bactericides. In the present invention, the vegetable oil, the essential oil and the volatile oil are the same, and are the extracts of the corresponding plants mentioned below.

Referring to fig. 1, the vegetable oil extraction system of the present invention includes first and

second storage tanks

10 and 20, a cooler 30, and an extractor 40.

The first tank 10 has a drain pipe 11 on the bottom thereof, on which a valve 12 is mounted, the top thereof being communicated with the top of the extractor 40 through a first gas-liquid portion circuit, and the upper side thereof being communicated with the bottom of the extractor 40 through a first siphon portion circuit 50. The first gas-liquid partial circuit comprises a first vertical pipe 13 communicating with the top of the first tank 10, a common vertical pipe 33 communicating with the top of the extractor 40, and a horizontal pipe communicating the two and provided with a valve 14. The first siphon part circuit 50 is provided with a valve 51. As shown in fig. 1, the first siphon portion circuit 50 has an upwardly bent portion and its highest point is below the top of the extractor 40.

Similarly, the second tank 20 has a drain 21 on the bottom to which a valve 22 is mounted, the top communicating with the top of the extractor 40 through a second liquid-gas portion circuit, and the upper side communicating with the bottom of the extractor 40 through a second siphon portion circuit 60. The second gas-liquid portion circuit comprises a second vertical line 23 communicating with the top of the second tank 20, a common vertical line 33 communicating with the top of the extractor 40, and a horizontal line communicating the two and provided with a valve 24. The second siphon part circuit 60 is provided with a valve 61. As shown in fig. 1, first siphon portion circuit 60 also has an upwardly bent portion with its highest point below the top of extractor 40.

In fig. 1, the first gas-liquid partial circuit and the second gas-liquid partial circuit are shown with a common vertical line 33, the common vertical line 33 passing through the cooler 30. In an alternative embodiment, the first and second gas-liquid partial circuits may also not have a common vertical line 33, but rather have a vertical line through the cooler 30, in which case the

valves

14 and 24 may be omitted.

An auger 44 is mounted in the extractor 40 to convey (dried) plant particles or powder fed from the top feed port 41 of the extractor 40 along the length of the extractor (horizontally as shown) to the vicinity of the extractor discharge port 42. The powder particles in the screw conveyor 44 will be in direct contact with the liquid in the extractor 40.

The working principle of the above-described extraction system is briefly described below.

First, plant granules or powder such as rhizome granules of atractylodes lancea or cassia twig or cnidium fruit granules are added through the feed port 41 of the extractor 40, and the screw conveyor 44 is actuated to spread the plant granules in the horizontal direction of the extractor 40 to the vicinity of the discharge port 42 of the extractor 40.

Valve 12 and valve 22 are closed and then purified water, which occupies about two thirds of the tank volume, is added to first reservoir 10 and second reservoir 20, respectively.

Closing valve 24 and valve 61;

valves

14 and 51 are opened.

The chiller 30 is started.

The first liquid storage tank 10 is heated until and the pure water therein is kept boiling continuously to form water vapor continuously.

The water vapor formed in the first storage tank 10 passes upwardly through the first vertical pipe 13 and the horizontal pipe and then downwardly through the common vertical pipe 33, and is changed into condensed water while passing through the cooler 30, and is introduced into the extractor 40.

When the liquid level in the extractor 40 exceeds the highest point of the first siphon portion circuit 50, the extracted liquid therein will be returned to the first liquid storage tank 10 through the first siphon portion circuit 50.

When the extraction liquid passing through the first siphon portion circuit 50 becomes substantially colorless, the heating of the first liquid storage tank 10 is stopped, and the auger 44 is activated to discharge the wet plant powder therein out of the extractor 40 through the discharge port 42.

Simultaneously or immediately with the above-described discharge action of the screw conveyor 44, further (fresh) plant particles are added through the feed opening 41 of the extractor 40, still through the screw conveyor 44 up to the vicinity of the discharge opening 42 of the extractor 40.

Closing valve 14 and valve 51;

valves

24 and 61 are opened.

The second reservoir 20 is heated to perform the same extraction process.

The valve 12 is opened to discharge the extract in the first reservoir tank 10 through the drain pipe 11 and then separated into distilled water and vegetable (extract) oil.

As described above, the first reservoir tank 10 and the second reservoir tank 20 are operated alternately and cooperate with the rapid transfer/discharge of the screw conveyor 44, thereby achieving the (uninterrupted) rapid industrial-scale extraction of the vegetable oil.

Preparation of fungicides

Mixing purified water and ethanol uniformly;

stirring to fully dissolve; and

and adding vegetable oil such as rhizoma Atractylodis oil and ramulus Cinnamomi oil, stirring, and packaging.

In the above-mentioned auxiliaries, DEA represents a diethylamino group, and TEA represents a triethylamine group.

Comparative example and example of bactericide with different components and proportions

Comparative example 1

Rhizoma atractylodis volatile oil: 1.0%, 0.5% of cocamide DEA, 3% of sodium lauryl ether sulfate, 2.0% of TEA sodium dodecyl sulfate, 5% of glycerin, 0.2% of borneol, 0.3% of edible essence and purified water: and (4) the balance.

Comparative example 2

Rhizoma atractylodis volatile oil: 1.5%, 1.0% of cocamide DEA, 4% of sodium lauryl ether sulfate, 3.0% of TEA sodium dodecyl sulfate, 8% of glycerin, 0.3% of borneol, 0.5% of edible essence and purified water: and (4) the balance.

Comparative example 3

Cassia twig essential oil: 0.8%, 0.5% of cocamide DEA, 3% of sodium lauryl ether sulfate, 2.0% of TEA sodium dodecyl sulfate, 5% of glycerin, 0.2% of borneol, 0.3% of edible essence and purified water: and (4) the balance.

Comparative example 4

Cassia twig essential oil: 1.2%, 1.0% of cocamide DEA, 4% of sodium lauryl ether sulfate, 3.0% of TEA sodium dodecyl sulfate, 8% of glycerin, 0.3% of borneol, 0.5% of edible essence and purified water: and (4) the balance.

Example 1

Rhizoma atractylodis volatile oil: 1.0% and cassia twig volatile oil: 0.8%, 0.5% of cocamide DEA, 3% of sodium lauryl ether sulfate, 2.0% of TEA sodium dodecyl sulfate, 5% of glycerin, 0.2% of borneol, 0.3% of edible essence and purified water: and (4) the balance.

Example 2

Rhizoma atractylodis volatile oil: 1.5% and cassia twig volatile oil: 1.2%, 1.0% of cocamide DEA, 4% of sodium lauryl ether sulfate, 3.0% of TEA sodium dodecyl sulfate, 8% of glycerin, 0.3% of borneol, 0.5% of edible essence and purified water: and (4) the balance.

Example 3

Rhizoma atractylodis volatile oil: 1.5% and cassia twig volatile oil: 0.8%, 0.5% of cocamide DEA, 3% of sodium lauryl ether sulfate, 2.0% of TEA sodium dodecyl sulfate, 5% of glycerin, 0.2% of borneol, 0.3% of edible essence and purified water: and (4) the balance.

Example 4

Rhizoma atractylodis volatile oil: 1.0% and cassia twig volatile oil: 1.2%, 1.0% of cocamide DEA, 4% of sodium lauryl ether sulfate, 3.0% of TEA sodium dodecyl sulfate, 8% of glycerin, 0.3% of borneol, 0.5% of edible essence and purified water: and (4) the balance.

Example 5

Rhizoma atractylodis volatile oil: 1.0% and cassia twig volatile oil: 1.0%, 0.6% of cocamide DEA, 3.5% of sodium lauryl ether sulfate, 2.5% of TEA sodium dodecyl sulfate, 6% of glycerin, 0.25% of borneol, 0.4% of edible essence and purified water: and (4) the balance.

Example 6

Rhizoma atractylodis volatile oil: 1.1% and cassia twig volatile oil: 0.9%, 0.8% of cocamide DEA, 3.5% of sodium lauryl ether sulfate, 2.5% of TEA sodium dodecyl sulfate, 7% of glycerin, 0.2% of borneol, 0.4% of edible essence and purified water: and (4) the balance.

Example 7

Rhizoma atractylodis volatile oil: 1.0% and cassia twig volatile oil: 1.1%, 0.6% of cocamide DEA, 3.5% of sodium lauryl ether sulfate, 2.5% of TEA sodium dodecyl sulfate, 6% of glycerin, 0.25% of borneol, 0.4% of edible essence and purified water: and (4) the balance.

Example 8

Rhizoma atractylodis volatile oil: 1.1% and cassia twig volatile oil: 0.8%, 0.8% of cocamide DEA, 3.5% of sodium lauryl ether sulfate, 2.5% of TEA sodium dodecyl sulfate, 7% of glycerin, 0.2% of borneol, 0.4% of edible essence and purified water: and (4) the balance.

Example 9

Rhizoma atractylodis volatile oil: 1.0% and cassia twig volatile oil: 0.8%, cnidium fruit oil 0.1%, cocoamide DEA 0.5%, sodium lauryl ether sulfate 3%, TEA sodium dodecyl sulfate 2.0%, glycerin 5%, borneol 0.2%, edible essence 0.3%, and purified water: and (4) the balance.

Example 10

Rhizoma atractylodis volatile oil: 1.5% and cassia twig volatile oil: 1.2%, cnidium fruit oil 0.1%, cocoamide DEA 1.0%, sodium lauryl ether sulfate 4%, TEA sodium dodecyl sulfate 3.0%, glycerin 8%, borneol 0.3%, edible essence 0.5%, and purified water: and (4) the balance.

Example 11

Rhizoma atractylodis volatile oil: 1.5% and cassia twig volatile oil: 0.8%, cnidium fruit oil 0.3%, cocoamide DEA 0.5%, sodium lauryl ether sulfate 3%, TEA sodium dodecyl sulfate 2.0%, glycerin 5%, borneol 0.2%, edible essence 0.3%, and purified water: and (4) the balance.

Example 12

Rhizoma atractylodis volatile oil: 1.0% and cassia twig volatile oil: 1.2%, cnidium fruit oil 0.2%, cocoamide DEA 1.0%, sodium lauryl ether sulfate 4%, TEA sodium dodecyl sulfate 3.0%, glycerin 8%, borneol 0.3%, edible essence 0.5%, and purified water: and (4) the balance.

Example 13

The other steps are the same as example 5, except that the rhizoma atractylodis volatile oil and the cassia twig volatile oil are prepared by mixing rhizoma atractylodis rhizome powder and cassia twig powder in proportion and then extracting.

Example 14

The other steps are the same as example 11, except that the atractylodes rhizome volatile oil, the cassia twig volatile oil and the cnidium fruit oil are prepared by mixing the atractylodes rhizome powder, the cassia twig powder and the cnidium fruit powder in proportion and then extracting.

Quantitative sterilization test of suspension

(1) Three strains of staphylococcus aureus, streptococcus and anaerobic streptococcus are selected to respectively prepare the bacterial suspension for experiments according to the disinfection technical specification, and the concentration is 1 x 108cfu/ml to 5 x 108 cfu/ml.

(2) Taking a large sterile test tube for a disinfection test, firstly adding 0.5ml of test bacterial suspension, then adding 0.5ml of organic interfering substance, uniformly mixing, placing in a water bath at 20 +/-1 ℃ for 5min, sucking 4.0ml of bactericide prepared in each example and comparative example by using a sterile pipette, injecting into the mixture, rapidly mixing uniformly and immediately timing.

(3) And (3) respectively sucking 0.5ml of mixed solution of the test bacteria and the bactericide into 4.5ml of sterilized neutralizer after the test bacteria and the bactericide interact for each preset time, and uniformly mixing.

(4) Adding neutralizer into the mixed solution of test bacteria and bactericide, reacting for 10min, respectively sucking 1.0ml of sample solution, determining viable bacteria number by viable bacteria culture counting method, and inoculating 2 plates to each tube of sample solution. If the number of colonies growing on the plate is large, serial 10-fold dilution can be performed, and viable bacteria culture counting can be performed.

(5) Meanwhile, the diluent is used for replacing the bactericide, and a parallel test is carried out to be used as a positive control.

(6) Culturing all test samples in an incubator at 37 ℃, and culturing the bacterial propagules for 48 hours to observe the final result; the bacterial spores were cultured for 72h to observe the final result.

(7) The test was repeated 3 times, and the viable bacteria concentration (cfu/ml) of each group was calculated and converted to a logarithmic value (N), and then the killing logarithmic value was calculated as follows:

log Kill (KL) log of mean viable bacteria concentration of control group (No) -log of viable bacteria concentration of test group (Nx)

The test results are shown in table 1.

Table 1: quantitative sterilization test result of suspension

The results of the sterilization tests show that:

the high-concentration atractylodes oil and cassia twig oil have strong killing effect on staphylococcus aureus when being used independently, the killing log-rank (KL) can even reach 5.14, but the killing log-rank (KL) on streptococcus and anaerobic streptococcus is poor (both are lower than 5.0). The screening results of the examples 1 to 8 show that the combination of the two has a synergistic effect on the main active ingredients in the rhizoma atractylodis volatile oil and the cassia twig volatile oil, and the dosage of the rhizoma atractylodis volatile oil and the cassia twig volatile oil is reduced, and the rhizoma atractylodis volatile oil and the cassia twig volatile oil can obviously kill staphylococcus aureus, streptococcus and anaerobic streptococcus. For example, in the quantitative bactericidal test of suspensions of comparative examples 1 to 4, the combined average killing logarithm values of three kinds of bacteria of the rhizoma atractylodis volatile oil bactericide with the concentrations of 1.0% and 1.5% are respectively 3.93 and 4.41, and the combined average killing logarithm values of three kinds of bacteria of the cassia twig volatile oil bactericide with the concentrations of 0.8% and 1.2% are respectively 4.13 and 4.45; when the two are mixed for use, the comprehensive average killing logarithm value of the three bacteria is more than 5.0 no matter how the concentration is adjusted, and the fact that the atractylodes rhizome oil and the cassia twig oil have the synergistic bactericidal effect is fully shown. Examples 9-12 it can be seen that the addition of small amounts of cnidium fruit oil further synergistically enhances the bactericidal effect.

In addition, use tests also show that the sterilizing sanitary towel can keep a sterile and dry environment of the vagina for a long time, effectively avoid troubles caused by bacterial infection in the menstrual period of women, and simultaneously does not stimulate the skin.

Claims

1. A sanitary napkin comprising a top layer, a moisture-wicking layer and a bottom layer, wherein the top layer is sprayed with a disinfectant comprising: 3 to 5 percent of ethanol, 1.0 to 1.5 percent of rhizoma atractylodis volatile oil, 0.8 to 1.2 percent of cassia twig volatile oil, 0.5 to 1.0 percent of cocamide DEA, 3 to 4 percent of sodium lauryl ether sulfate, 2.0 to 3.0 percent of TEA lauryl sodium sulfate, 5 to 8 percent of glycerin, 0.2 to 0.3 percent of borneol and 0.3 to 0.5 percent of edible essence.

2. The sanitary napkin of claim 1, wherein the antimicrobial agent comprises: 3 to 5 percent of ethanol, 1.0 to 1.2 percent of rhizoma atractylodis volatile oil, 0.8 to 1.0 percent of cassia twig volatile oil, 0.5 to 1.0 percent of cocamide DEA, 3 to 4 percent of sodium lauryl ether sulfate, 2.0 to 3.0 percent of TEA lauryl sodium sulfate, 5 to 8 percent of glycerin, 0.2 to 0.3 percent of borneol and 0.3 to 0.5 percent of edible essence.

3. The sanitary napkin of claim 1, wherein the antimicrobial agent comprises: 3 to 5 percent of ethanol, 1.0 to 1.5 percent of rhizoma atractylodis volatile oil, 0.8 to 1.2 percent of cassia twig volatile oil, 0.1 to 0.3 percent of common cnidium fruit volatile oil, 0.5 to 1.0 percent of cocamide DEA, 3 to 4 percent of sodium lauryl ether sulfate, 2.0 to 3.0 percent of TEA lauryl sodium sulfate, 5 to 8 percent of glycerol, 0.2 to 0.3 percent of borneol and 0.3 to 0.5 percent of edible essence.

4. A sanitary napkin according to any one of claims 1-3, wherein the balance of the antimicrobial agent is purified water.

5. A method of producing the sanitary napkin of claim 1, comprising: preparing a bactericide and spraying the bactericide on the surface layer of the sanitary towel, wherein the preparation of the bactericide comprises the following steps:

mixing purified water and ethanol uniformly;

stirring to fully dissolve; and

6. The production method according to claim 5, wherein the atractylodes rhizome oil and/or the cassia twig oil is continuously prepared by the following processes:

adding rhizoma Atractylodis rhizome powder and/or ramulus Cinnamomi powder into an extractor equipped with a screw conveyor;

condensing the vapor into liquid water by a cooler, and introducing the liquid water into an extractor to immerse rhizoma atractylodis rhizome powder and/or cassia twig powder;

when the extracting solution in the extractor is colorless, starting a screw conveyor in the extractor to discharge rhizoma atractylodis rhizome wet powder and/or cassia twig wet powder out of the extractor, and simultaneously adding rhizoma atractylodis rhizome powder and/or cassia twig powder into the extractor;

separating the extractive solution in the first liquid storage tank to obtain rhizoma Atractylodis oil and/or ramulus Cinnamomi oil.