Preparation method and application of lactic acid bacteriostatic odor-removing weak acid essence care base material

Abstract

The invention provides a preparation method and application of a lactic acid bacteriostatic odor-removing weak acid essence care base material. The lactic acid bacteria-inhibiting odor-removing weak acid essence is prepared from natural lactic acid, chamomile extract, lavender essential oil, artemisia scoparia extract, shea butter, wormwood essential oil, D-panthenol, witch hazel extract, a thickening agent, a humectant, a conditioner, an anti-allergy agent, a solubilizer and a non-irritant bacteria-inhibiting composition. The nursing base material is applied to disposable hygienic products such as baby pull-ups, panty liners, female sanitary napkins, sanitary pants and adult light incontinence pants. According to the lactic acid bacteria-inhibiting odor-removing weak acid essence nursing base material, all the components cooperate with one another, a prepared hygienic product can effectively inhibit bacteria, obviously reduce skin redness, swelling, allergy, pain, itching and discomfort and relieve skin inflammation, pruritus and other symptoms, meanwhile, the effective components can better permeate into the skin, and the skin can be healthily nourished. The skin cell activity is enhanced, the skin is moistened, and the effects of removing peculiar smell and relaxing and soothing are achieved.

Description

Technical Field

[0001] The invention relates to a nursing substrate for disposable sanitary products, in particular to a preparation method and application of a nursing substrate for a lactic acid antibacterial and odor-removing weak acid essence liquid. Background Art

[0002] Disposable sanitary products including adult sanitary pads, baby pants, panty liners, female sanitary napkins, sanitary pants and other products are close to the skin. Due to being in a humid and stuffy environment for a long time, they will cause skin redness, swelling, pain, itching and discomfort. In addition, long-term contact with chemical substances can easily cause irritation and allergies. When the number of bacteria is too large, there will be an odor, and it is easy to induce inflammation and discomfort. These problems seriously affect the quality of life of infants, women and the elderly. Summary of the invention

[0003] In view of this, the purpose of the present invention is to provide a preparation method and application of a nursing base material for a lactic acid antibacterial and deodorizing weak acid essence, which reduces the problems of skin redness, swelling, allergies, etc. caused by long-term use of disposable sanitary products. The ingredients of the nursing base material formula work together, and the prepared sanitary products can inhibit bacteria, significantly reduce skin redness, swelling, allergies, pain, itching and discomfort, relieve skin inflammation, itching and other symptoms, and have a moisturizing effect.

[0004] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0005] A method for preparing a nursing substrate for a lactic acid antibacterial and deodorizing weak acid essence, which is prepared from the following raw materials in parts by weight: the lactic acid antibacterial and deodorizing weak acid essence comprises 1.0-5.0 parts of natural lactic acid, 5.0-10.0 parts of chamomile extract, 1.0-2.0 parts of lavender essential oil, 2.0-5.0 parts of artemisia scoparia extract, 2.0-5.0 parts of shea butter, 1.0-2.0 parts of wormwood essential oil, 2.0-5.0 parts of D-panthenol, 5.0-10.0 parts of witch hazel extract, 0.05-0.2 parts of a thickener, 5.0-10.0 parts of a moisturizer, 1.0-5.0 parts of a conditioner, 0.1-1.0 parts of an antiallergic agent, 1.0-5.0 parts of a solubilizing agent, 1.0-5.0 parts of a non-irritating antibacterial composition and 60-70 parts of pure water.

[0006] Preferably, the thickener is a mixture of acrylic resin and hydroxyethyl cellulose in a specific ratio, that is, a mass ratio of acrylic resin to hydroxyethyl cellulose of 1:2.

[0007] Preferably, the conditioning agent is hyaluronic acid.

[0008] Preferably, the anti-allergic agent is bisabolol.

[0009] Preferably, the solubilizing agent is hydrogenated castor oil.

[0010] Preferably, the antibacterial composition is made of the following raw materials in parts by weight: 15-20 parts of ethanol, 5.0-10.0 parts of dalonin, 0.03-0.1 parts of lysozyme, 0.5-1.0 parts of citric acid, 0.1-0.5 parts of 3-iodo-2-propynyl-N-n-butylcarbamate and 70-80 parts of pure water.

[0011] Preferably, the steps for preparing the lactic acid antibacterial and deodorizing weak acid essence care base material are as follows:

[0012] (1) Preparation of component A: Prepare the thickener one day in advance: weigh 10% of the formula amount of pure water and add it to the phase A stirring tank, weigh acrylic resin and hydroxyethyl cellulose according to the specific proportion of the formula amount, start stirring and add the acrylic resin and hydroxyethyl cellulose to the phase A stirring tank respectively, stir for 2-3 hours (stirring speed 120 rpm) to prepare a transparent and uniform thickener mixture for use;

[0013] (2) Preparation of component B: Add the above-mentioned natural lactic acid, lavender essential oil, shea butter, wormwood essential oil, anti-allergic agent, and solubilizer in the A phase stirring tank, start stirring at a speed of 70 to 80 rpm for 30 minutes until the raw materials are completely dissolved and transparent, to obtain component B;

[0014] (3) Preparation of Component C: Add the above-mentioned moisturizing agent, D-panthenol and the remaining pure water in the main stirring kettle, start stirring at a speed of 70 to 80 rpm for 20 to 30 minutes until the raw materials are completely dissolved and transparent, thereby preparing Component C;

[0015] (4) Mixing and discharging: heat component C in the main stirring kettle to 45-50° C., add component B into the main stirring kettle, keep the speed at 70-80 rpm and stir for 10-20 minutes, add thickener while stirring, stir for 10 minutes, add non-irritating antibacterial composition, keep the speed at 70-80 rpm, stir for 8-10 minutes, finally add the above-mentioned parts by weight of Artemisia scoparia extract, chamomile extract, conditioner and witch hazel extract into the main stirring kettle, keep the speed at 70-80 rpm, stir for 15-20 minutes, let stand, and discharge after passing the inspection.

[0016] Preferably, the preparation process of the lactic acid antibacterial and deodorizing weak acid essence liquid care substrate is as follows: the lactic acid antibacterial and deodorizing weak acid essence liquid care substrate is sprayed on a non-woven fabric, and then the non-woven fabric is roller extruded at room temperature and pressure, and then dried in an extended low-temperature and low-wind speed drying equipment, the drying temperature being 65-70°C, and after drying, the substrate is cut into sizes of 30mm wide for female sanitary napkins and 60mm wide for panty liners. Children's pull-up pants and elderly diapers with light incontinence are not cut, and the lactic acid antibacterial and deodorizing weak acid essence liquid care substrate is obtained, which is supplied to finished product manufacturers, and the manufacturers cut it into appropriate sizes as needed.

[0017] Preferably, the lactic acid antibacterial and deodorizing weak acid essence liquid care substrate is used in disposable sanitary products.

[0018] Compared with the prior art, the preparation method and application of a lactic acid antibacterial and deodorizing weak acid essence care base material of the present invention has the following advantages:

[0019] (1) The lactic acid antibacterial and deodorizing weak acid essence liquid care base material described in the present invention is added with natural lactic acid, chamomile extract, lavender essential oil, artemisia annua extract, shea butter, wormwood essential oil, D-panthenol, witch hazel extract, thickener, moisturizer, conditioner, anti-allergic agent, solubilizer, and non-irritating antibacterial composition. The components work together to prepare the sanitary product which can effectively inhibit bacteria, significantly reduce skin redness, swelling, allergies, pain, itching and discomfort, relieve skin inflammation, itching and other symptoms, and integrate multiple functions into one.

[0020] (2) The lactic acid antibacterial and deodorizing weak acid essence liquid described in the present invention contains propylene glycol as a moisturizer, hyaluronic acid as a conditioning agent, and lavender essential oil, which can better penetrate the effective ingredients into the skin, enhance the vitality of skin cells, moisturize the skin, remove odor, and have a relaxing and soothing effect.

[0021] (3) The preparation process described in the present invention is simple and easy to implement, which reduces the unexpected effects caused by complex processes.

[0022] (4) The care substrate of the present invention has a wide range of uses and is suitable for the care of women of different ages and has important universal properties. DETAILED DESCRIPTION

[0023] In all embodiments of the present invention, unless otherwise specified about temperature and pressure, all are at room temperature and pressure, and unless otherwise specified about the use of equipment, all can be used according to conventional settings.

[0024] Example 1

[0025] A lactic acid antibacterial and deodorizing weak acid essence liquid nursing base material component includes natural lactic acid (Henan Jindan Lactic Acid Technology Co., Ltd., product name: lactic acid, the same as in the following examples) 1.5 parts, chamomile extract (Huzhou Zhenlu Biological Products Co., Ltd., the same as in the following examples) 5.0 parts, lavender essential oil (Jiangxi Taicheng Natural Flavor Co., Ltd., the same as in the following examples) 1.0 parts, Artemisia sphaerocarpa extract (Tianjin Roben Biotechnology Co., Ltd., the same as in the following examples) 2.0, shea butter (Shanghai Puen Biochemical Technology Co., Ltd., the same as in the following examples) 3.0, wormwood essential oil (Jiangxi Taicheng Natural Flavor Co., Ltd., the same as in the following examples) 1.0 parts, D-panthenol (Tianjin Roben Biotechnology Co., Ltd., the same as in the following examples) 2.0 parts, witch hazel extract (Huzhou Zhenlu Biological Products Co., Ltd., the same as in the following examples) 5.0 parts, a thickener (selected from Lubrizol Corporation of the United States, containing a carboxylic acid group (-COOH) content between 56.0% and 68.0%, the same as in the following examples) 0.1 parts, a moisturizer (Tianjin Yida Chemical Trading Co., Ltd., the same as in the following examples) 10.0 parts, a conditioner (Tianjin Yida Chemical Trading Co., Ltd., the same as in the following examples) 2.0 parts, an anti-allergic agent (Tianjin Shanglong Chemical Trading Co., Ltd., the same as in the following examples) 0.4 parts, a solubilizing agent (Tianjin Yida Chemical Trading Co., Ltd., the same as in the following examples) 1.0 parts, a non-irritating antibacterial composition (the same as in the following examples) 3.0 parts, and pure water (Tianjin Xiqing District Huiyongyuan Distilled Water Business Department, the same as in the following examples) 63.0 parts.

[0026] The non-irritating antibacterial composition includes 19 parts of ethanol (Tianjin Jiudian Trading Co., Ltd.), 5.0 parts of Dailongsu (Shanghai Gaoju Biotechnology Co., Ltd.), 0.05 parts of lysozyme (Bai Kaisheng (Shanghai) Biotechnology Co., Ltd.), 0.5 parts of citric acid (Tianjin Huanyu Hongxing Food Trading Co., Ltd.), 0.5 parts of 3-iodo-2-propynyl-N-n-butylcarbamate (selected from Shanghai Huao Industrial Co., Ltd., model IPBC-30, content 30%, the same as in the following examples) and 75 parts of pure water (Tianjin Xiqing District Huiyongyuan Distilled Water Business Department, the same as in the following examples);

[0027] The preparation process of the non-irritating antibacterial composition is as follows: preheat the reaction kettle, raise the temperature of the reaction kettle to 40-45°C (within this range), add the above-mentioned weight portions of ethanol, dailonase, lysozyme, and 3-iodo-2-propynyl-N-n-butylcarbamate, and stir for 25-30 minutes at a stirring speed of 60-65r / min. After stirring, pour in the above-mentioned weight portions of citric acid and pure water, continue to react for 20-25 minutes, maintain a stirring speed of 60-65r / min and a reaction temperature of 45-50°C, then cool to room temperature, and let stand to obtain the non-irritating antibacterial composition.

[0028] A method for preparing the above-mentioned lactic acid antibacterial and deodorizing weak acid essence care base material, the steps of which are as follows: (1) Preparation of component A: pre-prepare the thickener one day in advance: weigh 10% of the formula amount of pure water and add it to the phase A stirring tank, weigh acrylic resin and hydroxyethyl cellulose according to a specific proportion of the formula amount, start stirring and add the acrylic resin and hydroxyethyl cellulose to the phase A stirring tank respectively, stir for 2 to 3 hours at a stirring speed of 120 rpm to prepare a transparent and uniform thickener mixture for use;

[0029] (2) Preparation of component B: Add the above-mentioned natural lactic acid, lavender essential oil, shea butter, wormwood essential oil, anti-allergic agent, and solubilizer in the A phase stirring tank, start stirring at a speed of 70 to 80 rpm for 30 minutes until the raw materials are completely dissolved and transparent, to obtain component B;

[0030] (3) Preparation of Component C: Add the above-mentioned moisturizing agent, D-panthenol and the remaining pure water in the main stirring kettle, start stirring at a speed of 70 to 80 rpm for 20 to 30 minutes until the raw materials are completely dissolved and transparent, thereby preparing Component C;

[0031] (4) Synthesis and discharging: heat component C in the main stirring kettle to 45-50° C., add component B into the main stirring kettle, keep the speed at 70-80 rpm and stir for 10-20 minutes, add thickener while stirring, stir for 10 minutes, add non-irritating antibacterial composition, keep the speed at 70-80 rpm, stir for 8-10 minutes, finally add the above-mentioned parts by weight of Artemisia scoparia extract, chamomile extract, conditioner and witch hazel extract into the main stirring kettle, keep the speed at 70-80 rpm, stir for 15-20 minutes, let stand, and discharge after passing the inspection.

[0032] A disposable sanitary non-woven fabric using the above-mentioned lactic acid antibacterial and deodorizing weak acid essence, the preparation process of which is as follows: spraying the lactic acid antibacterial and deodorizing weak acid essence care base material on the non-woven fabric, then subjecting the non-woven fabric to roller extrusion at room temperature and pressure, and then drying it in an extended low-temperature and low-wind speed drying equipment, the drying temperature being 65-70°C, and after drying, cutting it into a coil with a width of 30mm or 60mm to obtain the lactic acid antibacterial and deodorizing weak acid essence care base material.

[0033] In the following examples, only the components are different, and the preparation process of the non-irritating antibacterial composition, the preparation process of the care substrate, and the preparation process of the lactic acid antibacterial and deodorizing lactic acid essence sanitary product non-woven fabric are the same as those in Example 1.

[0034] Example 2

[0035] The care base material components include 1 part of natural lactic acid, 5.0 parts of chamomile extract, 1.5 parts of lavender essential oil, 2.0 parts of artemisia annua extract, 2.0 parts of shea butter, 1.0 part of wormwood essential oil, 2.0 parts of D-panthenol, 5.0 parts of witch hazel extract, 0.2 parts of thickener, 10.0 parts of moisturizer, 3.0 parts of conditioner, 1.0 part of anti-allergic agent, 2.0 parts of solubilizer, 4.3 parts of non-irritating antibacterial composition and 60-75 parts of pure water; 60 parts of pure water.

[0036] The non-irritating antibacterial composition comprises 20 parts of ethanol, 12.5 parts of dalonin, 0.04 parts of lysozyme, 1 part of citric acid, 0.5 parts of 3-iodo-2-propynyl-N-n-butylcarbamate and 71 parts of pure water;

[0037] Example 3

[0038] The care base components include 2.0 parts of natural lactic acid, 6.0 parts of chamomile extract, 1.0 parts of lavender essential oil, 3.0 parts of artemisia annua extract, 2.5 parts of shea butter, 1.5 parts of wormwood essential oil, 3.0 parts of D-panthenol, 6.0 parts of witch hazel extract, 0.1 parts of thickener, 5.0 parts of moisturizer, 2.0 parts of conditioner, 0.4 parts of anti-allergic agent, 3.0 parts of solubilizer, 4.5 parts of non-irritating antibacterial composition and 60 parts of pure water.

[0039] The non-irritating antibacterial composition comprises 15 parts of ethanol, 11.0 parts of dailonin, 0.03 parts of lysozyme, 1.5 parts of citric acid, 0.5 parts of 3-iodo-2-propynyl-N-n-butylcarbamate and 72 parts of pure water.

[0040] Example 4

[0041] The care base material components include 3.0 parts of natural lactic acid, 4.0 parts of chamomile extract, 1.0 parts of lavender essential oil, 4.0 parts of artemisia scoparia extract, 1.5 parts of shea butter, 1.0 parts of wormwood essential oil, 4.0 parts of D-panthenol, 4.0 parts of witch hazel extract, 0.15 parts of thickener, 4.0 parts of moisturizer, 4.0 parts of conditioner, 0.35 parts of anti-allergic agent, 4.0 parts of solubilizer, 5.0 parts of non-irritating antibacterial composition and 60 parts of pure water;

[0042] The non-irritating antibacterial composition comprises 10 parts of ethanol, 12.5 parts of dailonin, 0.04 parts of lysozyme, 1.2 parts of citric acid, 0.3 parts of 3-iodo-2-propynyl-N-n-butylcarbamate and 76 parts of pure water;

[0043] Actual use test by volunteers: Volunteers were recruited in a gynecological clinic of a certain hospital, a children's welfare home and a senior welfare home. The conditions for recruiting volunteers were: women with sensitive genitals. A total of 50 female volunteers were recruited and randomly divided into 2 groups, 25 people in each group, namely test group 1 and test group 2. Test group 1 used sanitary napkins and panty liners made from Examples 1-4, and test group 2 used antibacterial panty liners of a foreign brand. The number of samples was calculated based on a three-month physiological period.

[0044] The sanitary napkins used in this test have had their trademarks and other iconic materials removed. Volunteers do not know what kind of sanitary napkins they are using. Volunteers are required to provide the experimenters with their own experience after the end of menstruation. The experience includes: whether the genitals are refreshing, whether the vagina is itchy, whether the leucorrhea is reduced, whether it relieves menstrual discomfort, and whether there is a sense of odor related to hygiene. Each item is scored out of 5 points. The better the feeling, the higher the score. The average score of three times of three menstrual periods of each group of volunteers is calculated.

[0045] Women's group: a group of tests: sanitary napkins (panty liners) made by using the lactic acid antibacterial and deodorizing weak acid essence of Examples 1-4 as the care substrate;

[0046] The test results are detailed in Table 1: (Test population: 18-50 females)

[0047]

[0048]

[0049] Women's group: Test group 2: Use a foreign brand of antibacterial sanitary napkins; see Table 2 for details of the test results: (Test population: 18-50 women)

[0050]

[0051]

[0052] The test results show that the test group 1 using the sanitary napkins of Examples 1 to 4 is significantly superior to the test group 2 in terms of refreshing the vulva, reducing itching, reducing menstrual discomfort, reducing odor and other aspects. It can be obtained that the sanitary napkins made of the sanitary product care base material using the lactic acid antibacterial and deodorizing weak acid essence liquid have nutrients absorbed by the vulva skin during use, can enhance the vitality of skin cells and relieve symptoms such as vulva inflammation, have a silky touch after use, and achieve the purpose of nourishing the skin and balancing the skin's microecology.

[0053] A total of 40 child volunteers were recruited from 6-12 months old babies with sensitive constitutions; they were randomly divided into 2 groups, 20 in each group, test group 1 and test group 2. Test group 1 used the pull-up pants made from Examples 1 to 4, and test group 2 used antibacterial diapers of a foreign brand. The number of samples was calculated based on 2 months.

[0054] The children's pull-up pants used in this test had their trademarks and other iconic materials removed. The caregivers did not know the brand of the pull-up pants used in advance, and provided the experimenters with the baby's skin condition after two months of use. The use conditions included: whether the buttocks were allergic, whether there was eczema, whether the red buttocks were slowed down, whether there was odor, etc., and the sensory experience was scored. Each item was scored out of 5 points. The better the experience, the higher the score. The average score for each group for two months was calculated.

[0055] Children's group: One group was tested: pull-up pants made by using the lactic acid antibacterial and deodorizing weak acid essence of Examples 1-4 as the care base material;

[0056] The test results are detailed in Table 3: (Test population: babies with sensitive constitutions aged 6-12 months)

[0057]

[0058]

[0059] Children's group: Test group 2: using a foreign brand of antibacterial diapers;

[0060] The test results are detailed in Table 4: (Test population: babies with sensitive constitutions aged 6-12 months)

[0061]

[0062]

[0063] The test results show that the test group 1 using the pull-up pants of Examples 1-4 is significantly superior to the test group 2 in terms of refreshing buttocks, reducing the discomfort of red buttocks, eczema allergies, and reducing the odor. It can be obtained that the pull-up pants made by using the lactic acid antibacterial and deodorizing weak acid essence liquid care base material moisturizes the baby's skin when used, and the nutrients are absorbed by the buttocks skin, which can enhance the vitality of skin cells and relieve symptoms such as red buttocks, eczema allergies, etc. After use, it feels refreshing and nourishes the skin, and also has a certain protective effect on the sensitive skin of babies.

[0064] Elderly people have a sensitive physique for mild incontinence, and a total of 40 elderly volunteers were recruited; they were randomly divided into 2 groups, 20 people in each group, test group 1 and test group 2, respectively. Test group 1 used the adult diapers made from Examples 1-4, and test group 2 used an antibacterial adult diaper of a domestic brand. The number of samples was calculated based on 2 months.

[0065] The adult diapers used in this test had their trademarks and other iconic materials removed. Users did not know what kind of diapers they were using and provided the experimenters with their skin conditions after two months of use. The conditions included: whether there were allergies on the buttocks, whether there was eczema, whether it was itchy, whether there was pain, whether there was an odor, etc. Each item was scored out of 5 points. The better the feeling, the higher the score. The average score for each group was calculated for two months.

[0066] Elderly group: One group was tested: adult diapers were made using the lactic acid antibacterial and deodorizing weak acid essence of Examples 1-4 as the care substrate;

[0067] The test results are detailed in Table 5: (Test population: elderly people with mild incontinence and allergic constitution)

[0068]

[0069]

[0070] Elderly group: Test group 2: Use a domestic brand of antibacterial adult diapers. See Table 6 for details of the test results: (Test population: elderly people with mild incontinence and allergic constitution)

[0071]

[0072]

[0073] The test results show that the test group 1 using the adult pants of Examples 1-4 is significantly better than the test group 2 in terms of dry buttocks, no itching, allergic discomfort, reduced odor, etc. It can be obtained that the adult pants made by using the lactic acid antibacterial and odor-removing weak acid essence liquid care base material are absorbed by the buttocks skin during use, which can repair damaged skin cells and relieve symptoms such as buttocks allergies. After use, it feels refreshing and helps to improve skin problems. Lavender essential oil has a mild aroma and relaxing and soothing effect. It can remove odors and bring a sense of tranquility and relaxation.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for preparing a nursing substrate for a lactic acid antibacterial and deodorizing weak acid essence, characterized in that: The lactic acid antibacterial and deodorizing weak acid essence includes natural lactic acid, chamomile extract, lavender essential oil, artemisia annua extract, shea butter, wormwood essential oil, D-panthenol, witch hazel extract, thickener, moisturizer, conditioner, anti-allergic agent, solubilizer, and non-irritating antibacterial composition.

2. The method for preparing a nursing substrate for a lactic acid antibacterial and deodorizing weak acid essence according to claim 1, characterized in that: The lactic acid antibacterial and deodorizing weak acid essence is prepared from the following raw materials in parts by weight: 1.0-5.0 parts of natural lactic acid, 5.0-10.0 parts of chamomile extract, 1.0-2.0 parts of lavender essential oil, 2.0-5.0 parts of artemisia scoparia extract, 2.0-5.0 parts of shea butter, 1.0-2.0 parts of wormwood essential oil, 2.0-5.0 parts of D-panthenol, 5.0-10.0 parts of witch hazel extract, 0.05-0.2 parts of thickener, 5.0-10.0 parts of moisturizer, 1.0-5.0 parts of conditioner, 0.1-1.0 parts of anti-allergic agent, 1.0-5.0 parts of solubilizer, 1.0-5.0 parts of non-irritating antibacterial composition and 60-70 parts of pure water.

3. The method for preparing a nursing substrate for a lactic acid antibacterial and deodorizing weak acid essence according to claim 1, characterized in that: The thickener is a mixture of acrylic resin and hydroxyethyl cellulose in a mass ratio of 1:

2.

4. The method for preparing a nursing substrate for a lactic acid antibacterial and deodorizing weak acid essence according to claim 1, characterized in that: The conditioning agent is hyaluronic acid.

5. The method for preparing a nursing substrate for a lactic acid antibacterial and deodorizing weak acid essence according to claim 1, characterized in that: The anti-allergic agent is bisabolol.

6. The method for preparing a nursing substrate for a lactic acid antibacterial and deodorizing weak acid essence according to claim 1, characterized in that: The solubilizing agent is hydrogenated castor oil.

7. The method for preparing a nursing substrate for a lactic acid antibacterial and deodorizing weak acid essence according to claim 1, characterized in that: The antibacterial composition is prepared from the following raw materials in parts by weight: 15-20 parts of ethanol, 5.0-10.0 parts of dailonase, 0.03-0.1 parts of lysozyme, 0.5-1.0 parts of citric acid, 0.1-0.5 parts of 3-iodo-2-propynyl-N-n-butylcarbamate and 70-80 parts of pure water.

8. A method for preparing a nursing substrate for a lactic acid antibacterial and deodorizing weak acid essence liquid according to claims 1-7, characterized in that: The preparation steps are as follows: (1) Preparation of component A: Prepare the thickener one day in advance: weigh 10% of the formula amount of pure water and add it to the phase A stirring tank, weigh acrylic resin and hydroxyethyl cellulose in a ratio of 1:2 according to the specific formula amount, start stirring and add acrylic resin and hydroxyethyl cellulose to the phase A stirring tank respectively, stir for 2-3 hours at a stirring speed of 120 rpm to prepare a transparent and uniform thickener mixture for use; (2) Preparation of component B: Add the above-mentioned natural lactic acid, lavender essential oil, shea butter, wormwood essential oil, anti-allergic agent, and solubilizer in the A phase stirring tank, start stirring at a speed of 70 to 80 rpm for 30 minutes until the raw materials are completely dissolved and transparent, to obtain component B; (3) Preparation of Component C: Add the above-mentioned moisturizing agent, D-panthenol and the remaining pure water in the main stirring kettle, start stirring at a speed of 70 to 80 rpm for 20 to 30 minutes until the raw materials are completely dissolved and transparent, thereby preparing Component C; (4) Mixing and discharging: heat component C in the main stirring kettle to 45-50° C., add component B into the main stirring kettle, keep the speed at 70-80 rpm and stir for 10-20 minutes, add thickener while stirring, stir for 10 minutes, add non-irritating antibacterial composition, keep the speed at 70-80 rpm, stir for 8-10 minutes, finally add the above-mentioned parts by weight of Artemisia scoparia extract, chamomile extract, conditioner and witch hazel extract into the main stirring kettle, keep the speed at 70-80 rpm, stir for 15-20 minutes, let stand, and discharge after passing the inspection.

9. A method for preparing a nursing substrate for a lactic acid antibacterial and deodorizing weak acid essence according to any one of claims 1 to 8, characterized in that: The preparation process is as follows: spray the lactic acid antibacterial and deodorizing weak acid essence liquid care substrate on a non-woven fabric, then roller extrude the non-woven fabric at room temperature and pressure, and then dry it in an extended low-temperature and low-wind speed drying equipment at a drying temperature of 65 to 70°C. After drying, shearing is performed to obtain a lactic acid antibacterial and deodorizing weak acid essence liquid care substrate.

10. Use of the lactic acid antibacterial and deodorizing weak acid essence care base material described in any one of claims 1 to 9 in disposable sanitary products.

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