Chinese herbal medicine waterless fumigated sanitary napkin product and preparation method thereof

Abstract

The invention provides a Chinese herbal medicine waterless fumigated sanitary napkin article and a preparation method thereof, and relates to the technical field of daily necessities, the Chinese herbal medicine waterless fumigated sanitary napkin article comprises a liquid absorption layer, a medicine layer, a waterless fumigated layer and a liquid separation layer which are sequentially separated by non-woven fabrics; wherein the anhydrous fumigation layer comprises alkaline earth metal oxide and sodium dihydrogen phosphate, and the alkaline earth metal oxide and the sodium dihydrogen phosphate are respectively coated with a silicone oil emulsion layer or a polyvinyl alcohol film. The alkaline earth metal oxide reacts with moisture in menstrual blood to release heat, and the medicine layer is fumigated under the condition of not additionally providing moisture, so that the release of active ingredients in the external medicine is accelerated, the skin permeability is improved, the medicine is fully released within 2-8 hours, and the utilization rate of the medicine is improved; the Chinese herbal medicine waterless fumigated sanitary napkin product can provide warm and comfortable feelings, pores are opened when the skin is heated, the medicine absorption capacity is enhanced, blood circulation can be promoted, and a good health care function is achieved.

Description

Technical Field

[0001] This invention relates to the field of daily necessities technology, and more specifically, to a type of sanitary napkin made with Chinese herbal medicine and its preparation method. Background Technology

[0002] Women are most vulnerable to bacterial infections during menstruation. During this time, menstrual blood alters the slightly acidic environment of the vagina, creating ideal conditions for bacterial growth. Furthermore, due to the unique physiological structure of women, sanitary napkins can shift during use, easily transferring bacteria or other harmful substances from excretory waste to the reproductive organs, potentially causing gynecological inflammation. Currently, some sanitary napkins incorporate traditional Chinese medicine ingredients, utilizing transdermal absorption for antibacterial or treatment purposes for gynecological diseases. However, these herbal ingredients, when used externally, suffer from poor skin penetration and low release efficiency. Since sanitary napkins are typically changed every 2 to 8 hours, the low release efficiency means the medication is removed before it is fully released, resulting in low drug utilization. Summary of the Invention

[0003] The problem this invention addresses is how to solve the issues of poor skin permeability and low release efficiency of traditional Chinese medicine components when added to sanitary napkins.

[0004] To address the above problems, this invention provides a type of sanitary napkin made with waterless fumigation of traditional Chinese medicine and its preparation method.

[0005] In a first aspect, the present invention provides a sanitary napkin product for waterless fumigation of traditional Chinese medicine, comprising an absorbent layer, a medicine layer, a waterless fumigation layer and a liquid-separating layer separated by non-woven fabric in sequence; wherein the waterless fumigation layer comprises alkaline earth metal oxide and sodium dihydrogen phosphate, and the alkaline earth metal oxide and sodium dihydrogen phosphate are respectively coated with a silicone oil emulsion layer or a polyvinyl alcohol film.

[0006] Optionally, the anhydrous fumigation layer may also include activated carbon and a liquid absorbent, which may include absorbent resin, fluff pulp, or cotton fibers.

[0007] Optionally, the alkaline earth metal oxides included in the anhydrous fumigation layer are calcium oxide or lightly calcined magnesium oxide.

[0008] Optionally, the pharmaceutical layer includes Sophora flavescens, Phellodendron chinense, Scutellaria baicalensis, Curcuma zedoaria, clam shell powder, red lead, catechu, frankincense, myrrh, pig bile powder, borneol, ginseng, Cnidium monnieri, Astragalus membranaceus, Epimedium, Leonurus japonicus, Dipsacus asper, Gleditsia sinensis thorns, cinnamon twig, Citrus aurantium and licorice.

[0009] Optionally, by weight, the medicinal layer includes 10 to 15 parts of Sophora flavescens, 10 to 12 parts of Phellodendron chinense, 9 to 12 parts of Scutellaria baicalensis, 6 to 9 parts of Curcuma zedoaria, 9 to 12 parts of clam shell powder, 1 to 2 parts of red lead, 6 to 9 parts of catechu, 6 to 9 parts of frankincense, 6 to 9 parts of myrrh, 3 to 6 parts of pig bile powder, 1 to 3 parts of borneol, 5 to 7 parts of ginseng, 9 to 12 parts of Cnidium monnieri, 12 to 18 parts of Astragalus membranaceus, 9 to 12 parts of Epimedium brevicornu, 15 to 30 parts of Leonurus japonicus, 12 to 15 parts of Dipsacus asper, 3 to 6 parts of Gleditsia sinensis thorns, 6 to 9 parts of Cinnamomum cassia, 6 to 9 parts of Citrus aurantium, and 5 to 7 parts of Glycyrrhiza uralensis.

[0010] Optionally, a flow guide layer is also connected to the side of the absorbent layer away from the drug layer, and the flow guide layer is provided with a spiral flow guide groove.

[0011] Optionally, the flow guiding layer is made of non-woven fabric.

[0012] Optionally, the absorbent layer may include one or more of organic cotton, fluff pulp, and superabsorbent polymer.

[0013] Optionally, the liquid separator is a polyethylene plastic film.

[0014] Secondly, the present invention provides a method for preparing anhydrous fumigation sanitary napkins made from traditional Chinese medicine as described in any of the preceding claims, comprising the following steps: The absorbent layer, medicine layer, anhydrous fumigation layer and liquid barrier layer, which are separated by non-woven fabric, are arranged in sequence and fixed by hot melt adhesive or hot pressing. Sterilization with ethylene oxide or cobalt-60 irradiation.

[0015] The beneficial effects of the herbal waterless fumigation sanitary napkin and its preparation method of the present invention are as follows: The herbal waterless fumigation sanitary napkin comprises an absorbent layer, a medicine layer, a waterless fumigation layer, and a liquid-separating layer sequentially separated by non-woven fabric. The waterless fumigation layer includes alkaline earth metal oxides, which react with water in menstrual blood to release heat. Without the need for additional water, the medicine layer is fumigated, accelerating the release of active ingredients in the topical medicine and improving skin permeability, allowing the medicine to be fully released within 2 to 8 hours, thus improving drug utilization. The herbal waterless fumigation sanitary napkin provides a warm and comfortable feeling, and the heat causes pores to open, enhancing drug absorption and promoting blood circulation, thus possessing good health benefits. The waterless fumigation layer also includes sodium dihydrogen phosphate, which reacts with water in the alkaline earth metal oxide to generate OH-. - Then, sodium dihydrogen phosphate reacts with OH- -The reaction inhibits the accelerated reaction between alkaline earth metal oxides and water caused by a sudden increase in system pH, and lowers the system's pH value, keeping the anhydrous fumigation layer neutral or slightly acidic. Healthy skin is slightly acidic, with a pH value between 5.0 and 6.5. This slightly acidic environment helps maintain the skin's natural barrier function, inhibits the growth of harmful bacteria, and promotes the presence of beneficial bacteria. The alkaline earth metal oxides and sodium dihydrogen phosphate are respectively coated with a silicone oil emulsion layer or a polyvinyl alcohol film, allowing both to gradually dissolve and release. This extends the reaction time to 2 to 6 hours, preventing rapid reaction of alkaline earth metal oxides with water that could cause local overheating and burns or a sudden increase in local pH. It also ensures that the herbal anhydrous fumigation sanitary napkins continuously release heat during use. Attached Figure Description

[0016] Figure 1 This is a flowchart illustrating the preparation method of waterless fumigation sanitary napkins using traditional Chinese medicine, as described in an embodiment of the present invention. Detailed Implementation

[0017] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Although some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0018] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this invention's description is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "comprising" and its variations as used herein are open-ended inclusion, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the description below.

[0019] To address the problems existing in the aforementioned related technologies, embodiments of the present invention provide a waterless fumigation sanitary napkin product made from traditional Chinese medicine and its preparation method.

[0020] An embodiment of the present invention provides a sanitary napkin product for waterless fumigation of traditional Chinese medicine, comprising an absorbent layer, a medicine layer, an waterless fumigation layer and a liquid-separating layer separated by non-woven fabric; wherein, the waterless fumigation layer comprises alkaline earth metal oxide and sodium dihydrogen phosphate, and the alkaline earth metal oxide and sodium dihydrogen phosphate are respectively coated with a silicone oil emulsion layer or a polyvinyl alcohol film.

[0021] In this embodiment, the herbal waterless fumigation sanitary napkin includes an absorbent layer, a medicine layer, a waterless fumigation layer, and a liquid-separating layer, sequentially separated by non-woven fabric. The waterless fumigation layer includes alkaline earth metal oxides, which react with the moisture in menstrual blood to release heat. This heat fumigates the medicine layer without requiring additional moisture, accelerating the release of active ingredients in the topical medicine and improving skin permeability. This allows the medicine to be fully released within 2 to 8 hours, increasing drug utilization. The herbal waterless fumigation sanitary napkin provides a warm and comfortable feeling, and the heat opens pores, enhancing drug absorption and promoting blood circulation, thus offering excellent health benefits. The waterless fumigation layer also includes sodium dihydrogen phosphate, which reacts with water to generate OH-. - Then, sodium dihydrogen phosphate reacts with OH- - The reaction inhibits the accelerated reaction between alkaline earth metal oxides and water caused by a sudden increase in system pH, and lowers the system's pH value, keeping the anhydrous fumigation layer neutral or slightly acidic. Healthy skin is slightly acidic, with a pH value between 5.0 and 6.5. This slightly acidic environment helps maintain the skin's natural barrier function, inhibits the growth of harmful bacteria, and promotes the presence of beneficial bacteria. The alkaline earth metal oxides and sodium dihydrogen phosphate are respectively coated with a silicone oil emulsion layer or a polyvinyl alcohol film, allowing both to gradually dissolve and release. This extends the reaction time to 2 to 6 hours, preventing rapid reaction of alkaline earth metal oxides with water that could cause local overheating and burns or a sudden increase in local pH. It also ensures that the herbal anhydrous fumigation sanitary napkins continuously release heat during use.

[0022] Specifically, the molar ratio of the added alkaline earth metal oxide to sodium dihydrogen phosphate is 1:1 to 1:2. When the molar ratio of alkaline earth metal oxide to sodium dihydrogen phosphate is 1:1, they can react completely, keeping the anhydrous fumigation layer neutral. When the molar ratio of alkaline earth metal oxide to sodium dihydrogen phosphate is 1:2, some sodium dihydrogen phosphate does not react, making the anhydrous fumigation layer slightly acidic. The slightly acidic environment helps maintain the skin's natural barrier function.

[0023] Specifically, the steps for coating the silicone oil emulsion layer with alkaline earth metal oxides are as follows: The surface of alkaline earth metal oxides was pretreated with an aminopropyltriethoxysilane (KH-550) ethanol solution to make the surface of alkaline earth metal oxides hydrophobic. After drying, it was ground to the micron level to prevent the agglomeration of alkaline earth metal oxides. Preparation of silicone oil emulsion: Dissolve silicone oil (30% by mass) + Span-80 (2% by mass) in cyclohexane (oil phase), slowly add aqueous phase containing 1% (by mass) Tween-80, stir at 50℃, centrifuge to homogenize and emulsify (centrifugal force 10000 rpm, speed 5 min) to form silicone oil emulsion; Hydrophobic alkaline earth metal oxide powder was added to silicone oil emulsion, ultrasonically dispersed for 30 min, and the solvent was evaporated to obtain microparticles of alkaline earth metal oxide coated with silicone oil emulsion.

[0024] Specifically, the steps for coating the silicone oil emulsion layer with sodium dihydrogen phosphate are as follows: Prepare a 20% (mass fraction) sodium dihydrogen phosphate aqueous solution, and filter to remove impurities; Mix silicone oil (10% by mass) and Tween-80 (3% by mass), and slowly add the mixture to an aqueous phase containing 0.5% (by mass) polyvinyl alcohol. Homogenize and emulsify the mixture under a high pressure of 15 MPa to form a silicone oil emulsion. Sodium dihydrogen phosphate aqueous solution was mixed with silicone oil emulsion and spray-dried (inlet temperature 180°C) to form microcapsules, resulting in microparticles of sodium dihydrogen phosphate coated with silicone oil emulsion.

[0025] Specifically, the steps for coating polyvinyl alcohol films with alkaline earth metal oxides are as follows: Polyvinyl alcohol (10wt%) was dissolved in water at 80°C, and plasticizer glycerin and crosslinking agent 1% (mass fraction) boric acid were added to obtain a polyvinyl alcohol solution. The surface of alkaline earth metal oxide nanoparticles was hydrophobically treated with an aminopropyltriethoxysilane (KH-550) ethanol solution; Hydrophobic nanoparticles of alkaline earth metal oxides were dispersed in a polyvinyl alcohol solution and ultrasonically treated for 10 min to obtain a mixture. Film formation: The mixture is poured onto a polytetrafluoroethylene plate and dried at room temperature for 24 h to form an alkaline earth metal oxide uniformly coated with a polyvinyl alcohol film. The thickness of the polyvinyl alcohol film is 50 to 100 μm.

[0026] Specifically, the steps for coating polyvinyl alcohol film with sodium dihydrogen phosphate are as follows: Polyvinyl alcohol (10 wt%) was dissolved in water at 80 °C, and 1% (mass fraction) of crosslinking agent borax and 2% (volume fraction) of plasticizer glycerin were added to obtain a polyvinyl alcohol solution. The surface of sodium dihydrogen phosphate will be hydrophobically treated with an aminopropyltriethoxysilane (KH-550) ethanol solution; Disperse hydrophobically treated sodium dihydrogen phosphate (5 to 20 wt%) into a polyvinyl alcohol solution and sonicate for 10 min; Sodium dihydrogen phosphate is cast onto a polytetrafluoroethylene (PTFE) plate and dried at 50°C for 24 hours to form a uniformly coated polyvinyl alcohol (PVA) film with a thickness of 50 to 100 μm.

[0027] Optionally, the anhydrous fumigation layer may also include activated carbon and a liquid absorbent, which may include absorbent resin, fluff pulp, or cotton fibers.

[0028] In this optional embodiment, the activated carbon layer of the anhydrous fumigation layer can effectively remove odors, inhibit bacteria, and enhance moisture removal capabilities, thus relieving menstrual women's irritability, creating a comfortable and pleasant mood, and preventing gynecological diseases. The absorbent is the absorbent component, capable of rapidly absorbing liquid, causing the liquid to react with the alkaline earth metal oxide to generate heat. The activated carbon and absorbent are evenly mixed with the alkaline earth metal oxide, ensuring uniform heating throughout the anhydrous fumigation layer.

[0029] Optionally, the alkaline earth metal oxides included in the anhydrous fumigation layer are calcium oxide or lightly calcined magnesium oxide.

[0030] In this optional embodiment, calcium oxide or lightly calcined magnesium oxide can react with water at room temperature to release heat.

[0031] Specifically, calcium oxide can be obtained by high-temperature calcination of limestone, while lightly calcined magnesium oxide is obtained by calcining magnesite at 750 to 1100°C. It can also be obtained by calcining brucite and magnesium hydroxide extracted from seawater or brine at 700 to 1000°C.

[0032] Specifically, when the anhydrous fumigation layer includes calcium oxide, vermiculite or diatomaceous earth (accounting for 20% to 30% of the weight of the anhydrous fumigation layer) can be added to absorb excess heat and prevent local overheating.

[0033] The process of exothermic reaction of magnesium oxide upon contact with water is mild and controllable, and it is more stable than calcium oxide.

[0034] Specifically, the weight of the alkaline earth metal oxides included in the anhydrous fumigation layer is 0.2 to 0.5 g.

[0035] Optionally, the pharmaceutical layer includes Sophora flavescens, Phellodendron chinense, Scutellaria baicalensis, Curcuma zedoaria, clam shell powder, red lead, catechu, frankincense, myrrh, pig bile powder, borneol, ginseng, Cnidium monnieri, Astragalus membranaceus, Epimedium, Leonurus japonicus, Dipsacus asper, Gleditsia sinensis thorns, cinnamon twig, Citrus aurantium and licorice.

[0036] In this optional embodiment, the drug layer is used to fumigate the vulva without water, which can promote blood circulation, remove dampness and relieve itching, clear heat and detoxify, dry dampness and kill insects, remove necrotic tissue and promote tissue regeneration, remove blood stasis and relieve pain, relieve menstrual pain, alleviate women's diseases, promote metabolism, improve blood circulation, relieve menstrual pain, expel cold air and dampness, warm the uterus, resist cold, and inhibit the growth of bacteria during menstruation.

[0037] Specifically, some drugs have synergistic effects: Sophora flavescens, Phellodendron chinense, and Scutellaria baicalensis: clear heat and dry dampness, have antibacterial and anti-inflammatory effects, and are used for damp-heat syndrome, skin infections, or gynecological inflammation.

[0038] Pig bile powder: It has the effects of clearing heat and detoxifying, and contains bile acid components, which have anti-inflammatory and antibacterial properties.

[0039] Catechu: It has astringent and antiseptic properties, and promotes wound healing.

[0040] Curcuma zedoaria, frankincense, and myrrh: promote blood circulation, regulate qi, reduce swelling, and relieve pain; used for qi stagnation and blood stasis syndrome.

[0041] Motherwort: Promotes blood circulation and regulates menstruation.

[0042] Ginseng and Astragalus: replenish Qi, strengthen the exterior, and enhance immunity.

[0043] Epimedium and Dipsacus: Tonify kidney yang and strengthen tendons and bones, used for kidney deficiency or soreness and weakness of the lower back and knees.

[0044] Clam shell powder (calcined): has astringent and acid-neutralizing properties, and can help wounds dry.

[0045] Red lead oxide (lead oxide): kills bacteria and parasites, stops mucus secretion, and is used to stop prickly heat.

[0046] Cinnamon twig and bitter orange peel: warm and unblock the meridians or regulate qi and relieve abdominal distension, and help improve circulation or abdominal bloating.

[0047] Cnidium monnieri: warms the kidneys and dispels dampness, and can treat itchy vulva.

[0048] Borneol: It can open the orifices and refresh the mind, clear heat and relieve pain (such as canker sores and hemorrhoids).

[0049] Licorice: harmonizes the effects of other herbs and reduces their toxicity.

[0050] The medicinal layer combines heat-clearing (Phellodendron bark, Sophora flavescens), blood-activating (Boswellia carterii, Commiphora myrrha), and astringent (Catechu, Clam shell powder) ingredients for external use to treat skin diseases (such as eczema and sores). Sophora flavescens, Cnidium monnieri, and Phellodendron bark, used in gynecology, combined with Leonurus japonicus to activate blood circulation and regulate menstruation, can treat gynecological inflammations (such as leukorrhea and itching). Curcuma zedoaria, Boswellia carterii, and Commiphora myrrha activate blood circulation and relieve pain; combined with Cinnamomum cassia to warm the meridians and promote blood circulation, it can activate blood circulation and reduce inflammation.

[0051] Optionally, by weight, the medicinal layer includes 10 to 15 parts of Sophora flavescens, 10 to 12 parts of Phellodendron chinense, 9 to 12 parts of Scutellaria baicalensis, 6 to 9 parts of Curcuma zedoaria, 9 to 12 parts of clam shell powder, 1 to 2 parts of red lead, catechu, 6 to 9 parts of frankincense, 6 to 9 parts of myrrh, 3 to 6 parts of pig bile powder, 1 to 3 parts of borneol, 5 to 7 parts of ginseng, 9 to 12 parts of Cnidium monnieri, 12 to 18 parts of Astragalus membranaceus, 9 to 12 parts of Epimedium brevicornu, 15 to 30 parts of Leonurus japonicus, 12 to 15 parts of Dipsacus asper, 3 to 6 parts of Gleditsia sinensis thorns, 6 to 9 parts of Cinnamomum cassia, 6 to 9 parts of Citrus aurantium, and 5 to 7 parts of Glycyrrhiza uralensis.

[0052] Optionally, a flow guide layer is also connected to the side of the absorbent layer away from the drug layer, and the flow guide layer is provided with a spiral flow guide groove.

[0053] In this optional embodiment, through the groove design of the spiral guide channel, the guide layer can quickly diffuse menstrual blood (or other liquids) laterally from the contact point to a larger area of ​​the absorbent core layer, avoiding side leakage or backflow after local saturation. The liquid distribution is more uniform and the absorption efficiency is higher. The rapid permeability of the guide layer reduces the time that liquid stays on the surface, reduces the possibility of backflow to the skin, keeps the surface dry, and the guide layer can disperse pressure, allowing the absorbent materials in each part of the core layer to play their full role.

[0054] Optionally, the flow guiding layer is made of non-woven fabric.

[0055] In this optional embodiment, the nonwoven fabric is a material formed by fiber bonding or thermoforming, making it more fluffy and porous. When used as a diversion layer in sanitary napkins, the pores between the nonwoven fibers form capillary channels, using capillary forces to accelerate the transfer of liquid from the surface layer to the absorbent core, quickly penetrating the liquid and reducing surface residue; through fiber arrangement or special embossing processes (such as three-dimensional embossing), the liquid is guided to diffuse laterally, expanding the absorption area and avoiding side leakage caused by local oversaturation; the nonwoven fabric is soft, which can alleviate the impact of liquid seepage and improve user comfort.

[0056] Optionally, the absorbent layer may include one or more of organic cotton, fluff pulp, and superabsorbent polymer.

[0057] In this optional embodiment, organic cotton is naturally skin-friendly and suitable for sensitive skin or users who prefer a purely natural product. Organic cotton absorbs liquid through the pores between its fibers, but its absorption rate is relatively slow and its water-locking ability is weak. It has good breathability and is usually used in combination with superabsorbent polymers (SAP). Fluff pulp, a fluffy fiber made from wood pulp, is responsible for quickly absorbing and temporarily storing liquid (similar to a sponge), providing a dispersion carrier for SAP and preventing SAP from clumping. Fluff pulp is low in cost and absorbs liquid quickly, but its water-locking ability is limited and it is prone to backflow under pressure. It is often mixed with SAP to improve performance. SAP is a core water-locking material that can absorb liquids dozens of times its own weight and gel them to prevent backflow. It plays a key role when the liquid volume is large, reducing the frequency of replacement. After absorbing water, it swells to form a gel and needs to be evenly distributed in the fluff pulp to avoid a foreign body sensation.

[0058] Optionally, the liquid separator is a polyethylene plastic film.

[0059] In this optional embodiment, the polyethylene plastic film is a completely waterproof material that can completely prevent menstrual blood from seeping into underwear or bed sheets. It is especially suitable for daytime or nighttime sanitary napkins with heavy flow. Compared with traditional rubber or composite fabrics, the polyethylene plastic film is thinner, lighter, and cheaper, and is easy to laminate with other layers of the sanitary napkin. No matter how strong the absorbency of the sanitary napkin is, without a liquid-repellent layer, side leakage or bottom leakage will occur. The polyethylene plastic film is the "last line of defense" against leakage.

[0060] like Figure 1 As shown, another embodiment of the present invention provides a method for preparing a sanitary napkin product using waterless fumigation of traditional Chinese medicine as described in any of the preceding claims, comprising the following steps: The absorbent layer, medicine layer, anhydrous fumigation layer and liquid barrier layer, which are separated by non-woven fabric, are arranged in sequence and fixed by hot melt adhesive or hot pressing. Sterilization with ethylene oxide or cobalt-60 irradiation.

[0061] Specifically, the hot-pressing pressure is controlled at 0.2 to 0.5 MPa and the temperature is ≤70℃; cobalt-60 irradiation sterilization is performed with a dose controlled at 8 to 25 kGy.

[0062] The present invention will be further described below with reference to specific embodiments.

[0063] Example 1: Preparation of sanitary napkins made from waterless fumigation of traditional Chinese medicine.

[0064] To prepare the liquid-absorbing layer, fluff pulp and superabsorbent polymer are mixed and wrapped with nonwoven fabric. The nonwoven fabric has drainage grooves pressed on it. To prepare the drug layer, take 10mg of Sophora flavescens, 8mg of Phellodendron chinense, 8mg of Scutellaria baicalensis, 6mg of Curcuma zedoaria, 8mg of clam shell powder, 1.33mg of red lead, 6mg of catechu, 6mg of frankincense, 6mg of myrrh, 4mg of pig bile powder, 2mg of borneol, 4.66mg of ginseng, 8mg of Cnidium monnieri, 12mg of Astragalus membranaceus, 8mg of Epimedium brevicornu, 20mg of Leonurus japonicus, 10mg of Dipsacus asper, 4mg of Gleditsia sinensis thorns, 6mg of Cinnamomum cassia, 6mg of Citrus aurantium, and 4.66mg of Glycyrrhiza uralensis, mix them evenly and pulverize them, then wrap them in non-woven fabric. To prepare an anhydrous fumigation layer, take 0.5 g of lightly calcined magnesium oxide particles coated with silicone oil emulsion, 1.5 g of sodium dihydrogen phosphate particles coated with silicone oil emulsion, 1 g of activated carbon, and 0.5 g of cotton fiber, mix and pulverize them, and wrap them with non-woven fabric. The absorbent layer, the drug layer, and the waterless fumigation layer, each wrapped in non-woven fabric, are arranged in sequence. A liquid-separating layer is attached to the side of the waterless fumigation layer away from the drug layer. The absorbent layer, the drug layer, the waterless fumigation layer, and the liquid-separating layer are bonded together with low-melting-point EVA hot melt adhesive. Sterilization with ethylene oxide.

[0065] Example 2: Preparation of sanitary napkins made with waterless fumigation of traditional Chinese medicine.

[0066] To prepare the absorbent layer, cotton fibers and superabsorbent polymer are mixed and wrapped with nonwoven fabric. The nonwoven fabric has drainage grooves pressed on it. To prepare the drug layer, take 6.67 mg of Sophora flavescens, 6.67 mg of Phellodendron chinense, 6 mg of Scutellaria baicalensis, 4 mg of Curcuma zedoaria, 6 mg of clam shell powder, 0.67 mg of red lead, 4 mg of catechu, 4 mg of frankincense, 4 mg of myrrh, 2 mg of pig bile powder, 0.67 mg of borneol, 3.34 mg of ginseng, 6 mg of Cnidium monnieri, 8 mg of Astragalus membranaceus, 6 mg of Epimedium brevicornu, 10 mg of Leonurus japonicus, 8 mg of Dipsacus asper, 2 mg of Gleditsia sinensis thorns, 4 mg of Cinnamomum cassia, 4 mg of Citrus aurantium, and 3.34 mg of Glycyrrhiza uralensis, mix them evenly and pulverize them, then wrap them in non-woven fabric. To prepare an anhydrous fumigation layer, take 0.2 g of lightly calcined magnesium oxide coated with polyvinyl alcohol film, 1 g of sodium dihydrogen phosphate coated with polyvinyl alcohol film, 0.05 g of activated carbon and 0.05 g of water-absorbing resin, mix and crush them, and wrap them with non-woven fabric. The absorbent layer, the drug layer, and the waterless fumigation layer, each wrapped in non-woven fabric, are arranged in sequence. A liquid-separating layer is attached to the side of the waterless fumigation layer away from the drug layer. The absorbent layer, the drug layer, the waterless fumigation layer, and the liquid-separating layer are then pressed together by hot pressing. The hot pressing pressure is controlled at 0.4 MPa and the temperature is controlled at 60°C. Sterilization was performed by cobalt-60 irradiation, with the dosage controlled at 20 kGy.

[0067] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A type of sanitary napkin product using waterless fumigation with traditional Chinese medicine, characterized in that, It includes a liquid-absorbing layer, a medicine layer, an anhydrous fumigation layer, and a liquid-separating layer, which are sequentially separated by non-woven fabric; wherein, the anhydrous fumigation layer includes alkaline earth metal oxide and sodium dihydrogen phosphate, and the alkaline earth metal oxide and the sodium dihydrogen phosphate are respectively coated with a silicone oil emulsion layer or a polyvinyl alcohol film.

2. The herbal waterless fumigation sanitary napkin product according to claim 1, characterized in that, The anhydrous fumigation layer also includes activated carbon and a liquid absorbent, which includes absorbent resin, fluff pulp, or cotton fiber.

3. The herbal waterless fumigation sanitary napkin product according to claim 1, characterized in that, The alkaline earth metal oxides included in the anhydrous fumigation layer are calcium oxide or lightly calcined magnesium oxide.

4. The herbal waterless fumigation sanitary napkin product according to claim 1, characterized in that, The medicinal layer includes Sophora flavescens, Phellodendron chinense, Scutellaria baicalensis, Curcuma zedoaria, clam shell powder, red lead, catechu, frankincense, myrrh, pig bile powder, borneol, ginseng, Cnidium monnieri, Astragalus membranaceus, Epimedium, Leonurus japonicus, Dipsacus asper, Gleditsia sinensis thorns, cinnamon twig, Citrus aurantium and licorice.

5. The herbal waterless fumigation sanitary napkin product according to claim 1, characterized in that, By weight, the medicinal layer comprises 10 to 15 parts of Sophora flavescens, 10 to 12 parts of Phellodendron chinense, 9 to 12 parts of Scutellaria baicalensis, 6 to 9 parts of Curcuma zedoaria, 9 to 12 parts of clam shell powder, 1 to 2 parts of red lead, 6 to 9 parts of catechu, 6 to 9 parts of frankincense, 6 to 9 parts of myrrh, 3 to 6 parts of pig bile powder, 1 to 3 parts of borneol, 5 to 7 parts of ginseng, 9 to 12 parts of Cnidium monnieri, 12 to 18 parts of Astragalus membranaceus, 9 to 12 parts of Epimedium brevicornu, 15 to 30 parts of Leonurus japonicus, 12 to 15 parts of Dipsacus asper, 3 to 6 parts of Gleditsia sinensis thorns, 6 to 9 parts of Cinnamomum cassia, 6 to 9 parts of Citrus aurantium, and 5 to 7 parts of Glycyrrhiza uralensis.

6. The herbal waterless fumigation sanitary napkin product according to claim 1, characterized in that, The side of the liquid absorption layer away from the drug layer is also connected to a flow guiding layer, which is provided with a spiral flow guiding groove.

7. The herbal waterless fumigation sanitary napkin product according to claim 6, characterized in that, The flow guiding layer is made of non-woven fabric.

8. The herbal waterless fumigation sanitary napkin product according to claim 1, characterized in that, The absorbent layer comprises one or more of organic cotton, fluff pulp, and superabsorbent polymer.

9. The herbal waterless fumigation sanitary napkin product according to claim 1, characterized in that, The liquid separator is a polyethylene plastic film.

10. A method for preparing sanitary napkins using anhydrous fumigation of traditional Chinese medicine as described in any one of claims 1-9, characterized in that, Includes the following steps: The absorbent layer, medicine layer, anhydrous fumigation layer and liquid barrier layer, which are separated by non-woven fabric, are arranged in sequence and fixed by hot melt adhesive or hot pressing. Sterilization with ethylene oxide or cobalt-60 irradiation.

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