CN115414519A - Sanitary towel for relieving cold in uterus and preparation method thereof - Google Patents
Sanitary towel for relieving cold in uterus and preparation method thereof Download PDFInfo
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- CN115414519A CN115414519A CN202211010882.0A CN202211010882A CN115414519A CN 115414519 A CN115414519 A CN 115414519A CN 202211010882 A CN202211010882 A CN 202211010882A CN 115414519 A CN115414519 A CN 115414519A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
- A61L15/44—Medicaments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
- A61K36/18—Magnoliophyta (angiosperms)
- A61K36/185—Magnoliopsida (dicotyledons)
- A61K36/28—Asteraceae or Compositae (Aster or Sunflower family), e.g. chamomile, feverfew, yarrow or echinacea
- A61K36/285—Aucklandia
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
- A61K36/18—Magnoliophyta (angiosperms)
- A61K36/185—Magnoliopsida (dicotyledons)
- A61K36/53—Lamiaceae or Labiatae (Mint family), e.g. thyme, rosemary or lavender
- A61K36/534—Mentha (mint)
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
- A61K47/16—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing nitrogen, e.g. nitro-, nitroso-, azo-compounds, nitriles, cyanates
- A61K47/18—Amines; Amides; Ureas; Quaternary ammonium compounds; Amino acids; Oligopeptides having up to five amino acids
- A61K47/186—Quaternary ammonium compounds, e.g. benzalkonium chloride or cetrimide
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
- A61L15/26—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/40—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing ingredients of undetermined constitution or reaction products thereof, e.g. plant or animal extracts
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A—HUMAN NECESSITIES
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- A61K2236/30—Extraction of the material
- A61K2236/37—Extraction at elevated pressure or temperature, e.g. pressurized solvent extraction [PSE], supercritical carbon dioxide extraction or subcritical water extraction
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Abstract
The application relates to the field of sanitary products, in particular to a sanitary towel for relieving cold in uterus and a preparation method thereof. The sanitary towel comprises a surface layer, a functional core layer, an absorption layer, a bottom film layer and a release paper layer which are sequentially arranged from the upper surface to the lower surface, wherein the functional core layer is prepared by dipping non-woven fabrics into snow lotus emulsion and then drying. The snow lotus herb emulsion is emulsion containing snow lotus herb extract, such as volatile oil, alkaloid, flavonoid, phenols, saccharides, tannin and other components, and has the functions of dispelling cold, strengthening yang, tonifying kidney, warming uterus, dissipating blood stasis, regulating menstruation, strengthening tendons, activating collaterals, replenishing blood, tonifying qi and reducing swelling, wherein the snow lotus herb extract is obtained by supercritical fluid extraction. The sanitary towel containing the snow lotus herb extract effective components is in contact with private parts of women, can play a role in externally assisting and conditioning, and relieves discomfort caused by cold womb during the female physiological period.
Description
Technical Field
The application relates to the field of sanitary products, in particular to a sanitary towel for relieving cold in uterus and a preparation method thereof.
Background
The sanitary towel is a sanitary article required by daily life of women, is mainly used in menstrual periods of women, is mainly made of cotton, non-woven fabric, paper pulp or high molecular polymer and high molecular polymer composite paper formed by composites of the above materials, and has multiple functional types such as daily use, night use, protection pad use, lengthening use, thickening use, light and thin use and the like.
At present, along with the change of the dietary structure of cold drinks and cold foods and the change of living conditions of long-term life in an air-conditioning environment, more women have uterus cold symptoms, the lower abdomen has a falling and swelling feeling before the physiological period, the phenomena of leucorrhea increase, back waist soreness, two-breast distending pain and the like occur, and a few women have regurgitation and retching reactions; during the physiological period, there are abdominal pain, cool lower abdomen, black menstruation with blood clot, etc., and individual women will also have dysmenorrhea.
On the other hand, women can take analgesics to relieve dysmenorrhea caused by cold womb, and also can take traditional Chinese medicines to recuperate the cold womb; however, the pain-relieving medicine is taken only temporarily to relieve pain, the treatment is not the root cause, the oral administration of the traditional Chinese medicine belongs to the oral administration conditioning, the decoction time of the traditional Chinese medicine is long, and the administration conditioning period is long.
In response to the above problems, the applicant believes that the sanitary napkins of the above type, all of which stay on the structural color layer, have a fresh role in the body conditioning during the female physiology.
Disclosure of Invention
In order to relieve and condition the problem of body discomfort caused by cold womb of women, the application provides a sanitary towel for relieving cold womb and a preparation method thereof.
In a first aspect, the application provides a sanitary towel for relieving cold in uterus and a preparation method thereof, and the following technical scheme is adopted:
a sanitary towel for relieving cold in uterus comprises a surface layer, a functional core layer, an absorption layer, a bottom film layer and a release paper layer which are sequentially arranged from the upper surface to the lower surface, wherein the functional core layer is prepared by dipping non-woven fabrics into snow lotus emulsion and drying.
By means of the treatment method of dipping the non-woven fabric into the snow lotus herb emulsion, snow lotus herb functional components in the snow lotus herb emulsion can be soaked into the non-woven fabric, the functional core layer prepared by drying contains snow lotus herb functional components, and the functional core layer is arranged on the surface of the absorption layer, so that when a woman uses the sanitary towel, the functional core layer containing the snow lotus herb functional components can assist in playing an external auxiliary conditioning role, if a user also conditions the cold condition of the uterus by adopting an internal traditional Chinese medicine, the internal conditioning and the external auxiliary conditioning are combined, the cold conditioning effect of the uterus can be further improved, and the longer period for conditioning only the internal traditional Chinese medicine is shortened.
The snow lotus herb emulsion is an emulsion containing snow lotus herb extract, the snow lotus herb extract contains snow lotus herb active ingredients, such as volatile oil, alkaloid, flavonoid, phenols, saccharides, tannin and the like, has the functions of removing cold, tonifying yang and kidney, warming uterus and dissipating blood stasis, regulating menstruation, strengthening tendons and activating collaterals, enriching blood and tonifying qi and diminishing swelling, and is in contact with private parts of women in an external use mode of using a sanitary towel in the physiological period of the women to play an external auxiliary conditioning role and relieve discomfort caused by cold womb in the physiological period of the women.
Preferably, the area of the functional core layer is smaller than or equal to that of the absorption layer, and preferably equal to that of the absorption layer, so that the core layer containing the snow lotus herb extract can be in contact with private parts of women in a large area, and the external auxiliary uterus cold conditioning effect can be effectively achieved during the female physiology.
Preferably, the snow lotus herb emulsion is prepared by the following steps:
adding 2-3 parts by weight of emulsifier into 20-30 parts by weight of ethanol water solution, stirring uniformly, then adding 2-3 parts by weight of snow lotus nano-composite and 0.5-1.0 part by weight of mint essential oil, and dispersing uniformly by ultrasound to obtain a mixture A;
adding 1-1.2 parts by weight of emulsifier into 55-60 parts by weight of deionized water, uniformly stirring, heating to 65-70 ℃, adding 6-8 parts by weight of stabilizer, and uniformly stirring to obtain a mixture B;
and cooling the mixture B to 55-62 ℃, adding the mixture A while carrying out homogeneous stirring, continuing to carry out homogeneous stirring for 20-30min after the addition is finished, then adding 5-10 parts by weight of ethanol aqueous solution, and carrying out homogeneous stirring for 10-15min to obtain the snow lotus emulsion.
By adopting the technical scheme, the prepared snow lotus herb emulsion can easily infiltrate the non-woven fabric, snow lotus herb nano-composite components are easily attached to the surface of the non-woven fabric, and then the non-woven fabric is dried to form a water-soluble film structure on the surface of the non-woven fabric, and before the sanitary towel is not used, the snow lotus herb nano-composite components are stably coated in the non-woven fabric by the water-soluble film, so that the effective components of snow lotus herb extracts in the snow lotus herb nano-composite components are not easy to release and lose; when the sanitary towel is used in the menstrual period of women, the water-soluble film can be dissolved by the moisture contained in the menstrual blood discharged by women, so that the effective components of the snow lotus herb extract in the snow lotus herb nano composite components can be released and act on private parts of women, and the effect of externally assisting in conditioning the cold in the uterus can be achieved.
Wherein, because women's sanitary towel product is not used immediately after the production shaping, leave the factory at the packing, the transportation, the shelf storage, purchase after deposit the course all is the save process, if directly with the snow lotus extract dispersion in the solution, directly spray or soak and set up in the non-woven fabrics, can make the active ingredient in the snow lotus extract volatilize or release easily in the save process for when using this sanitary towel, the snow lotus extract active ingredient content in the sanitary towel is lower, can reduce the effect of the supplementary nursing of external use. Therefore, the snow lotus herb extract is processed into snow lotus herb emulsion through the steps, the snow lotus herb emulsion is soaked in the non-woven fabric, and after the snow lotus herb emulsion is dried, the ethanol component in the snow lotus herb emulsion is volatilized, so that a water-soluble film is formed on the surface of the non-woven fabric by the snow lotus herb emulsion, the water-soluble film can play a role in coating the snow lotus herb extract, the active ingredients in the snow lotus herb extract are not easy to release during the storage period of the sanitary towel, the content loss is caused, and the external auxiliary uterus cold conditioning effect of the sanitary towel is stable.
In addition, in the steps, the snow lotus herb nano compound and the mint essential oil can be emulsified and dispersed uniformly through the emulsifier and the ethanol water solution, and the stabilizer is emulsified and dispersed uniformly through the emulsifier and the ionized water, so that the prepared mixture A can be compatible with and uniformly emulsified with the prepared mixture B, and the snow lotus herb emulsion with stable emulsification is prepared. Specifically, the essential oil component in the mixture A can be compatible with the volatile oil component of the snow lotus extract in the snow lotus nano composite to form an oil phase component, the mixture B is used as a water phase component, and the mixture B is added into the mixture A to be homogenized and stirred to form an oil-in-water snow lotus emulsion, so that the snow lotus emulsion can uniformly infiltrate the non-woven fabric; the mint essential oil component has the effects of sterilizing, refreshing, easing pain, relieving dysmenorrheal and the like, the mint essential oil component and the volatile oil component of the snow lotus flower extract in the snow lotus flower nano compound are coated in a water phase as an oil phase, meanwhile, after the snow lotus flower emulsion can evenly infiltrate the non-woven fabric, a water-soluble film is formed on the surface of the non-woven fabric, so that the active ingredients in the snow lotus flower extract are not easily lost in the storage shelf life of the sanitary towel, when the sanitary towel is used, water in female menstrual blood contacts the water-soluble film, the water-soluble film is dissolved, the mint essential oil component and the volatile oil component in the snow lotus flower extract are released together, and other active ingredients in the snow lotus flower extract are released together to act on a human body together, so that the external auxiliary conditioning effect is achieved.
Preferably, in the preparation of the mixture A and the preparation of the mixture B, each part by weight of the emulsifier is formed by mixing octadecyl polyoxyethylene ether biquaternary ammonium salt and dodecyl ammonium chloride according to a weight ratio of 2-4.
By adopting the emulsifier composition, the mixture A and the mixture B can be emulsified and dispersed uniformly, so that the uniformly emulsified mixture A and the mixture B can be compatible with each other and emulsified uniformly, and uniform and stable snow lotus emulsion is prepared, so that the infiltration of non-woven fabrics is improved, the adhesiveness of the effective components of the snow lotus extract in the snow lotus emulsion in the non-woven fabrics is improved, and the external auxiliary uterus cold conditioning effect of the sanitary towel on a human body is further improved.
In addition, the adopted octadecyl polyoxyethylene ether biquaternary ammonium salt and dodecyl ammonium chloride have better antistatic, sterilization, disinfection and adsorption effects, so that on one hand, the static electricity which is possibly generated in the process of preparing the sanitary towel by winding or unwinding the prepared functional core layer after the prepared snow lotus emulsion soaks the non-woven fabric and is dried can be reduced; on the other hand, the fabric of the non-woven fabric is usually negatively charged and has a repulsive effect on colloidal particles in emulsion with negative charge, so that the snow lotus herb nano-composite is not easy to attach to the non-woven fabric, and the emulsifier adopted has a moderate HLB value, integrates the effects of emulsification, dispersion and stabilization, can ensure that the prepared snow lotus herb emulsion is positively charged, has fine granularity and large specific surface area, can be stably attached to fibers of the non-woven fabric, ensures that the prepared functional core layer contains more snow lotus herb extract, and ensures that the prepared sanitary towel can play a role of externally assisting in conditioning uterus cold.
Preferably, each weight part of the stabilizer comprises 2 to 3 weight parts of carboxymethyl cellulose, 1 to 2 weight parts of sodium alginate, 0.3 to 1.0 weight part of sodium starch octenyl succinate and 1.5 to 2.5 weight parts of modified starch.
The adopted stabilizer has good water solubility and certain viscosity, can be uniformly dispersed under the action of an emulsifier and deionized water, can stably permeate and infiltrate into non-woven fabric under the action of ethanol in emulsion, and after drying treatment, ethanol component volatilizes, so that the emulsion can form a water-soluble film on the surface of the non-woven fabric, and the water-soluble film is contacted with water in menstrual blood of a female during physiological period to be dissolved, and the active ingredients of the snow lotus herb extract and the mint essential oil coated by the water-soluble film are released, thereby playing the role of externally assisting in conditioning uterus cold and dysmenorrhea.
The modified starch has good solubility at 65-70 ℃, can be gelatinized into colloid, and the sodium starch octenylsuccinate can form a colloid structure after being dissolved in water, so that the viscosity of the emulsion can be improved by the stabilizer component, the infiltration uniformity and the attachment uniformity of the snow lotus herb emulsion in the non-woven fabric can be improved, the content of the snow lotus herb extract in the non-woven fabric can be improved, and the external auxiliary uterus cold conditioning effect of the sanitary towel can be improved.
Preferably, in the preparation of the mixture A, the mass fraction of the ethanol aqueous solution is 60-70%; the ultrasonic frequency of ultrasonic dispersion is 15000-18000Hz, and the ultrasonic time is 10-12min; the mass fraction of the ethanol water solution in the preparation process of the mixture A is controlled, and the ultrasonic frequency and the ultrasonic time are controlled to uniformly disperse the emulsifier, the snow lotus herb nano-composite and the essential oil, so that the two components are uniformly compatible and emulsified when the mixture B is subsequently added into the mixture A.
In the preparation of the mixture B, the homogenizing stirring speed is 2800-4000rpm; the emulsifier, the stabilizer and the deionized water can be uniformly dispersed;
in the process of adding the mixture A into the mixture B, the homogenizing and stirring rotating speed is 2800-3200rpm, and the homogenizing and stirring rotating speed after the mixture A is added is 2800-4000rpm; the mixture B can be uniformly dispersed into the mixture A, and the system is emulsified uniformly to form a stable oil-in-water emulsion system so as to be uniformly infiltrated into the non-woven fabric.
After the mixture A is completely added into the mixture B, the mass fraction of the ethanol aqueous solution is 60-70%, the film forming performance of the snow lotus herb emulsion can be promoted, and the ethanol component is easy to volatilize under the drying condition and can promote the volatilization, so that the drying time of the non-woven fabric soaked with the snow lotus herb emulsion is shortened, and the condition that the loss of effective components in the snow lotus herb extract is caused by overlong drying time is reduced.
Preferably, the snow lotus herb nano-composite is prepared by the following steps:
adding 0.2-0.8 weight part of hexadecyl trimethyl ammonium bromide into 50-60 weight parts of deionized water, and uniformly stirring; then adding 10-15 parts by weight of styrene, 0.1-0.5 part by weight of acrylic acid, 0.5-2 parts by weight of butyl acrylate and 4-5 parts by weight of snow lotus herb extract, homogenizing and stirring for 20-30min to obtain a component I;
uniformly stirring 0.1-0.3 part by weight of hexadecyl trimethyl ammonium bromide, 0.05-0.15 part by weight of ammonium persulfate and 10-12 parts by weight of deionized water to obtain a component II;
and (3) in a protective atmosphere, dropwise adding the component II into the component I while homogenizing and stirring, after dropwise adding, carrying out heat preservation reaction, carrying out sealed heat preservation for 90-150min at the temperature of 70-80 ℃, cooling to below 40 ℃, and discharging to obtain the snow lotus herb nano-composite.
By adopting the technical scheme, the cationic polymer nanoparticles loaded with the snow lotus extract are prepared to be used as the snow lotus nano-composite, wherein positive charges are carried on the surfaces of the cationic polymer nanoparticles formed by polymerization, and strong electrostatic attraction exists on the surfaces of cellulose fibers with negative charges, so that the cationic polymer nanoparticles can be adsorbed on the surfaces of the fibers, and further the snow lotus extract can be carried to be adsorbed on the surfaces of the fibers of non-woven fabrics, and the adhesiveness of the effective components of the snow lotus extract is improved.
Wherein, firstly, the styrene, the acrylic acid, the butyl acrylate and the snow lotus herb extract are emulsified and dispersed evenly by cetyl trimethyl ammonium bromide and deionized water to prepare a component I; simultaneously dispersing initiator ammonium persulfate uniformly through hexadecyl trimethyl ammonium bromide and deionized water to prepare a component II; when the component II is dripped into the component I, the two components are uniformly compatible and emulsified, so that the monomer components are promoted to be emulsified and polymerized to form cationic polymer nanoparticles, and the snow lotus extract and the monomer are mixed together, so that the snow lotus extract can be stably adsorbed in the emulsification polymerization process, the prepared snow lotus nano-composite is formed by loading the snow lotus extract in the cationic polymer nanoparticles, and the emulsification polymerization process can improve the loading rate of the snow lotus extract on the cationic polymer nanoparticles and can also improve the adsorption and adhesion of the cationic polymer nanoparticles adsorbed and loaded with the snow lotus extract on the surface of the non-woven fabric fibers.
Preferably, in the preparation of the component I, the rotation speed of homogeneous stirring is 2500-3000rpm; in the process of dropwise adding the ammonium persulfate, the homogenizing stirring speed of the component I is 2000-2200rpm.
By controlling the homogenizing rotating speed in the preparation process of the component I, the uniform emulsification and dispersion of the monomer components and the snow lotus herb extract under the action of an emulsifier and deionized water can be improved, so that the compatibility uniformity and the emulsification uniformity of the subsequent component I and the component II are improved, and the preparation of the cationic polymer nano particles loaded with the snow lotus herb extract by emulsification polymerization is promoted. The dispersity of the initiator in the dropping process can be improved by controlling the homogenizing stirring speed of the component I in the dropping process of the ammonium persulfate, so that the emulsion polymerization efficiency is improved.
Preferably, the snow lotus herb extract is prepared by the following steps:
cleaning herba Adonidis, drying, pulverizing, and sieving with 60-100 mesh sieve;
adding pulverized herba Adonidis into supercritical extraction equipment, and extracting with CO 2 Extracting with supercritical fluid to obtain volatile oil and oil extract, and collecting herba Adonidis extract.
Extracting effective components from herba Saussureae Involueratae with supercritical fluid, and extracting with CO 2 The extraction fluid has the advantages of low critical temperature and critical pressure, mild operation conditions, less damage to effective components, stable and as much as possible extraction of the effective components in the snow lotus herb, no need of repeated extraction operation, and reduced loss of the effective components caused by the repeated extraction operation; in addition, CO 2 Stable property, high solubility, reduced oxidation of effective components, high content of extracted effective components, and high content of CO 2 The extract of the sanitary towel does not contain nitrate and harmful heavy metals and has no harmful solvent residue, so that the sanitary towel prepared by adopting the functional core layer has no residual solvent pollution to human bodies, and is safe and nontoxic after the snow lotus extract obtained by extraction is further prepared into snow lotus emulsion and the snow lotus emulsion is infiltrated into non-woven fabrics to prepare the functional core layer.
Preferably, in the supercritical fluid extraction, CO is controlled 2 The flow rate is 15-25L/h, the extraction temperature is 38-50 deg.C, the extraction time is 2-3h, the extraction pressure is 15-25MPa, the separation temperature is 25-32 deg.C, and the separation pressure is 3-6MPa.
By controlling the condition parameters in the supercritical fluid extraction process, the effective components in the snow lotus herb can be extracted at a lower extraction temperature and time, the oxidation or loss of the effective components in the snow lotus herb caused by the high-temperature and long-time extraction process is reduced, and the extraction rate of the effective components is improved.
In a second aspect, the application provides a preparation method of a sanitary towel for relieving cold in uterus, which adopts the following technical scheme:
a preparation method of a sanitary towel for relieving cold in uterus comprises the following steps:
soaking a sterilized non-woven fabric in the snow lotus emulsion for 30-50min, and drying to obtain a functional core layer; sequentially stacking the surface layer, the functional core layer and the absorption layer, and performing press-fitting treatment on the edges to obtain a composite layer;
then the bottom film layer is attached to the surface, close to the absorption layer, of the composite layer, the edge of the composite layer and the edge of the bottom film layer are subjected to full-circle edge sealing, and cutting molding is carried out; then applying adhesive on the surface of the release paper layer, then attaching the adhesive to the bottom film layer, transferring the adhesive to the bottom film layer, then attaching the outer packaging film to the back of the release paper layer by a needle, packaging and sealing to obtain the finished sanitary towel.
Through adopting above-mentioned technical scheme, can set up the function sandwich layer steadily in sanitary towel, and set up in the one side that is close to human private department skin to preferably set up in the middle part that corresponds sanitary towel, the full week banding can make top layer, function sandwich layer, absorbed layer and basement membrane layer connect stably, is difficult for appearing the phenomenon of interlaminar separation, makes sanitary towel stable in use, use feels good. When menstrual blood of a woman in a physiological period is promoted to permeate into the absorption layer under the absorption effect of the absorption layer, and in the absorption process, the functional core layer permeates through the functional core layer, and when the functional core layer is contacted with moisture in the menstrual blood, a water-soluble film on the surface of the functional core layer is dissolved, so that the effective ingredients of the snow lotus herb extract are released, and when the sanitary towel is used in the physiological period, external auxiliary uterus cold conditioning can be realized.
In summary, the present application has the following beneficial effects:
1. the snow lotus emulsion soaking non-woven fabrics that this application contains the snow lotus extract, the sanitary towel is further prepared to the function sandwich layer that makes after the drying, can use the external use mode of sanitary towel when the physiology period through the women for the active ingredient of snow lotus extract contacts with women's private position, in order to play the supplementary opsonization effect of external use, alleviates women's uncomfortable sense that arouses because of the cold in uterus during physiology.
2. The preparation method of the snow lotus herb emulsion is simple to operate, the process is easy to control, the prepared emulsion is stable in quality, and can stably permeate and infiltrate into the non-woven fabric, and after drying treatment, ethanol components volatilize, so that the emulsion can form a water-soluble film on the surface of the non-woven fabric, the water-soluble film is contacted with water in menstrual blood of a female in a physiological period and is dissolved, the snow lotus herb extract effective components and the mint essential oil coated by the water-soluble film are released, and the external auxiliary effect of conditioning the cold in the uterus and the dysmenorrhea is achieved.
3. According to the application, effective ingredients in the snow lotus herb are stably extracted in a supercritical fluid extraction mode, and the snow lotus herb extract is mixed with a polymer monomer, so that in the emulsification polymerization process, the polymer nanoparticles adsorb and load the snow lotus herb extract, and then the polymer nanoparticles loaded with the snow lotus herb extract are further used for preparing snow lotus herb emulsion, when the snow lotus herb emulsion is soaked in non-woven fabric, the polymer nanoparticles can be stably adsorbed on non-woven fabric fibers, the adhesion of the snow lotus herb extract in the non-woven fabric is improved, and the external auxiliary uterus cold conditioning effect of the sanitary towel on a human body is further improved.
Drawings
FIG. 1 is a schematic view of a sanitary napkin for relieving cold in uterus according to the present application;
fig. 2 is an exploded view of a cold uterus relief sanitary napkin of the present application.
Description of the reference numerals: 1. a surface layer; 2. a functional core layer; 3. an absorbing layer; 4. a base film layer; 5. and (7) a release paper layer.
Detailed Description
The present application is described in further detail below with reference to figures 1-2 and examples.
TABLE 1 table of sources of some of the feedstocks in the specific embodiment
The manufacturer sources and the models of the materials are all specific choices of the materials in a support specific implementation mode, and are used for tests.
Preparation example of snow lotus herb extract
Preparation example 1
A preparation method of a snow lotus herb extract comprises the following steps:
cleaning 100g of snow lotus herb, drying, crushing and sieving by a 60-mesh sieve;
adding pulverized herba Saussureae Involueratae into supercritical extraction equipment, and extracting with CO 2 Control of CO as extraction fluid 2 Extracting at flow rate of 15L/h, extraction temperature of 50 deg.C, extraction time of 2h, extraction pressure of 25MPa, separation temperature of 25 deg.C, and separation pressure of 6MPa with supercritical fluid, and collecting volatile oil and oil extract to obtain herba Saussureae Involueratae extract.
Preparation example 2
A preparation method of a snow lotus herb extract comprises the following steps:
cleaning 100g of snow lotus herb, drying, crushing and sieving by a 80-mesh sieve;
adding pulverized herba Saussureae Involueratae into supercritical extraction equipment, and extracting with CO 2 Control of CO as extraction fluid 2 Extracting at flow rate of 20L/h, extraction temperature of 44 deg.C, extraction time of 2.5h, extraction pressure of 20MPa, separation temperature of 28 deg.C and separation pressure of 5MPa with supercritical fluid, and collecting volatile oil and oil extract to obtain herba Saussureae Involueratae extract.
Preparation example 3
A preparation method of a snow lotus herb extract comprises the following steps:
cleaning 100g of snow lotus herb, drying, crushing and sieving by a 100-mesh sieve;
adding pulverized herba Adonidis into supercritical extraction equipment, and extracting with CO 2 Control of CO as extraction fluid 2 Extracting at flow rate of 25L/h, extraction temperature of 50 deg.C, extraction time of 3h, extraction pressure of 25MPa, separation temperature of 32 deg.C and separation pressure of 3MPa with supercritical fluid, and collecting volatile oil and oil extract to obtain herba Saussureae Involueratae extract.
Preparation example of snow lotus herb nanocomposite
Preparation example 4
A preparation method of snow lotus herb nano-composite comprises the following steps:
adding 2g of hexadecyl trimethyl ammonium bromide into 500g of deionized water, and uniformly stirring; then 100g of styrene, 1g of acrylic acid, 5g of butyl acrylate and 40g of the snow lotus herb extract prepared in the preparation example 1 are added, and the mixture is homogenized and stirred for 30min under the condition that the rotating speed is 2500rpm, so that a component I is prepared;
1g of hexadecyl trimethyl ammonium bromide, 0.5g of ammonium persulfate and 100g of deionized water are uniformly stirred to prepare a component II;
and (3) in a protective atmosphere, dropwise adding the component II into the component I while carrying out homogeneous stirring, wherein the homogeneous stirring rotation speed is 2000rpm, after the dropwise adding is finished, carrying out heat preservation reaction, carrying out closed heat preservation for 150min at the temperature of 70 ℃, cooling to below 40 ℃, and discharging to obtain the snow lotus herb nano-composite.
Preparation example 5
A preparation method of snow lotus herb nano-composite comprises the following steps:
adding 6g of hexadecyl trimethyl ammonium bromide into 560g of deionized water, and uniformly stirring; then adding 130g of styrene, 3g of acrylic acid, 12g of butyl acrylate and 45g of the snow lotus herb extract prepared in the preparation example 2, and homogenizing and stirring for 25min at the rotation speed of 2800rpm to prepare a component I;
uniformly stirring 2g of hexadecyl trimethyl ammonium bromide, 1.0g of ammonium persulfate and 110g of deionized water to prepare a component II;
and (3) in a protective atmosphere, dropwise adding the component II into the component I while carrying out homogeneous stirring, wherein the homogeneous stirring rotation speed is 2100rpm, carrying out heat preservation reaction after the dropwise adding is finished, carrying out closed heat preservation for 120min at the temperature of 75 ℃, cooling to below 40 ℃, and discharging to obtain the snow lotus herb nano-composite.
Preparation example 6
A preparation method of snow lotus herb nano-composite comprises the following steps:
adding 8g of hexadecyl trimethyl ammonium bromide into 600g of deionized water, and uniformly stirring; then adding 150g of styrene, 5g of acrylic acid, 20g of butyl acrylate and 50g of the snow lotus herb extract prepared in the preparation example 3, and homogenizing and stirring for 20min at the rotating speed of 3000rpm to prepare a component I;
3g of hexadecyl trimethyl ammonium bromide, 1.5g of ammonium persulfate and 120g of deionized water are uniformly stirred to prepare a component II;
and (3) in a protective atmosphere, dropwise adding the component II into the component I while carrying out homogeneous stirring, wherein the homogeneous stirring rotation speed is 2200rpm, after dropwise adding, carrying out heat preservation reaction, carrying out closed heat preservation for 90min at the temperature of 80 ℃, cooling to below 40 ℃, and discharging to obtain the snow lotus herb nano-composite.
Preparation example 7
A preparation method of snow lotus herb nano-composite comprises the following steps:
adding 4g of hexadecyl trimethyl ammonium bromide into 670g of deionized water, and uniformly stirring; then adding 65g of styrene, 1.5g of acrylic acid, 6g of butyl acrylate and 45g of the snow lotus herb extract prepared in the preparation example 2, carrying out homogeneous stirring for 25min under the condition that the rotation speed is 2800rpm, then adding 0.6g of ammonium persulfate, uniformly stirring, heating to 75 ℃ in a sealed atmosphere, then adding 65g of styrene, 1.5g of acrylic acid and 6g of butyl acrylate, after finishing adding, adding 4g of hexadecyl trimethyl ammonium bromide and 0.4g of ammonium persulfate, carrying out sealed heat preservation for 120min at the temperature of 75 ℃, cooling to below 40 ℃, and discharging to prepare the snow lotus herb nano-composite.
Preparation example of snow lotus herb emulsion
Preparation example 8
A preparation method of snow lotus herb emulsion comprises the following steps:
adding 20g of emulsifier (formed by mixing 15g of octadecyl polyoxyethylene ether biquaternary ammonium salt and 5g of dodecyl ammonium chloride) into 200g of ethanol water solution with the mass fraction of 60%, uniformly stirring, then adding 20g of snow lotus herb nano composite prepared in preparation example 4 and 5g of peppermint essential oil, and ultrasonically dispersing for 12min under the condition that the frequency is 15000Hz to prepare a mixture A; adding 10g of emulsifier (formed by mixing 8g of octadecyl polyoxyethylene ether biquaternary ammonium salt and 2g of dodecyl ammonium chloride) into 550g of deionized water, uniformly stirring, heating to 65 ℃, adding 60g of stabilizer (formed by mixing 20g of carboxymethyl cellulose, 10g of sodium alginate, 4g of sodium starch octenyl succinate and 25g of modified starch), and uniformly stirring at the rotation speed of 2800rpm to obtain a mixture B;
and cooling the mixture B to 62 ℃, adding the mixture A while carrying out homogeneous stirring at the homogeneous stirring rotation speed of 2800rpm, continuing to carry out homogeneous stirring for 20min after the addition is finished, then adding 50g of ethanol aqueous solution with the mass fraction of 60%, and carrying out homogeneous stirring at the rotation speed of 2800rpm for 15min to obtain the snow lotus emulsion.
Preparation examples 9 to 11
Preparation examples 9 to 11 differ from preparation example 8 described above in that: the types and the dosage of the emulsifier in the preparation process, the source of the snow lotus herb nano compound and the difference of the step condition parameters are specifically shown in the following table 2:
TABLE 2 preparation conditions of snow lotus emulsion of preparation examples 8-11
Preparation example 12
The present preparation example differs from the above preparation example 9 in that: in the preparation of the mixture A, 8g of the snow lotus herb extract of the preparation example 2 and 12g of cationic polymer nano particles are adopted to replace 20g of the snow lotus herb nano composite prepared in the preparation example 4;
the cationic polymer nano particle is prepared by the following steps:
adding 6g of hexadecyl trimethyl ammonium bromide into 560g of deionized water, and uniformly stirring; then adding 130g of styrene, 3g of acrylic acid and 12g of butyl acrylate, and homogenizing and stirring for 25min under the condition that the rotating speed is 2800rpm to obtain a component I;
uniformly stirring 2g of hexadecyl trimethyl ammonium bromide, 1.0g of ammonium persulfate and 110g of deionized water to prepare a component II;
and (3) in a protective atmosphere, dropwise adding the component II into the component I while carrying out homogeneous stirring, wherein the homogeneous stirring rotation speed is 2100rpm, after dropwise adding, carrying out heat preservation reaction, carrying out closed heat preservation for 120min at the temperature of 75 ℃, cooling to below 40 ℃, and discharging to obtain the cationic polymer nanoparticles.
Preparation example 13
This preparation differs from the above preparation 9 in that: in the preparation of the mixture A, 20g of the snow lotus herb extract obtained in the preparation example 2 is adopted to replace 20g of the snow lotus herb nano-composite obtained in the preparation example 4.
Examples
Example 1
A preparation method of a sanitary towel for relieving cold in uterus comprises the following steps:
soaking a sterilized non-woven fabric (5 cm in length, 3cm in width, 1cm in thickness, and available from nonwoven fabric of Shandonghua industry, inc.) in the herba Saussureae Involueratae emulsion prepared in preparation example 8 at room temperature for 30min, and drying to obtain functional core layer 2;
the surface layer 1, the functional core layer 2 and the absorption layer 3 are sequentially stacked, and then the edge is pressed to obtain a composite layer;
then the bottom film layer 4 is attached to the surface, close to the absorption layer, of the composite layer, the edge of the composite layer and the edge of the bottom film layer 4 are subjected to full-circle edge sealing, and cutting molding is carried out; then applying adhesive on the surface of the release paper layer 5, then attaching the adhesive to the bottom film layer 4, transferring the adhesive to the bottom film layer 4, then attaching an outer packaging film to the back of the release paper layer 5 by a needle, packaging and sealing to obtain a sanitary towel finished product, wherein the obtained sanitary towel is shown in attached figures 1-2.
Examples 2 to 6
Examples 2-6 differ from example 1 in that: the sources of the snow lotus herb emulsion are different, and the differences are specifically seen in the following table 3:
table 3 snow lotus emulsion source table of examples 1-6
Comparative example
Comparative example 1
This comparative example differs from example 2 above in that: the functional core layer 2 is not subjected to the infiltration treatment of the snow lotus herb emulsion.
Comparative example 2
This comparative example differs from example 2 above in that: the functional core layer 2 is soaked by adopting snow lotus herb extract dispersion liquid, and the snow lotus herb extract dispersion liquid is prepared by mixing 8g of snow lotus herb extract obtained in the preparation example 2 and 50g of ethanol water solution with the mass fraction of 65%.
Performance test
Rutin content test
The rutin contents of the functional core layer 22 obtained in examples 1 to 6 and comparative example 2 were measured, and the rutin contents on the day after the preparation, 30 days after the storage, 60 days after the storage, and 90 days after the storage were measured, respectively, by referring to the high performance liquid chromatography (general rule 0512) in the Chinese pharmacopoeia.
The results of the measurement are shown in table 4 below:
TABLE 4 rutin content in the functional core layer 22 prepared in examples 1-6 and comparative example 2
As can be seen from table 4 above in conjunction with examples 1-6, the snow lotus emulsion before the snow lotus is soaked in the non-woven fabric to prepare the snow lotus emulsion, so that the prepared functional core layer 2 can be stably loaded with rutin which is an active ingredient of the snow lotus extract, and after 30-day storage, 60-day storage and 90-day storage, the content loss of rutin is lower than 4%.
In the embodiments 1 to 4, the snow lotus extract is added to the emulsion polymerization process of the cationic polymer nanoparticles, the prepared snow lotus nano composite is further prepared into snow lotus emulsion, and the snow lotus emulsion is further infiltrated into the non-woven fabric, the rutin content loss in the functional core layer 2 prepared in the embodiments 1 to 3 is lower than 3%, and the rutin content loss in the embodiment 4 is lower than 3.3%, which indicates that in the emulsion polymerization process of adding the snow lotus extract to the cationic polymer nanoparticles, on one hand, the loading rate of the snow lotus extract on the cationic polymer nanoparticles can be improved, on the other hand, the adsorption adhesion of the cationic polymer nanoparticles adsorbing and loading the snow lotus extract on the surface of the non-woven fabric fibers can be improved, and the loss of effective components in the snow lotus extract during storage can be reduced.
In addition, in example 5, the snow lotus herb extract of the preparation example 2 and the cationic polymer nano-particles are mixed to further prepare snow lotus herb emulsion to infiltrate the non-woven fabric, and the rutin content reduction rate after storage for 30 days, 60 days and 90 days is higher than that of the snow lotus herb emulsion of the preparation example 2; in example 6, the saussurea involucrate aqueous solution prepared by only directly adopting the saussurea involucrate extractive and the non-woven fabric infiltrated by the saussurea involucrate aqueous solution without adopting the cationic polymer nano particles as the load carrier have higher rutin content reduction rate after 30 days, 60 days and 90 days of storage than that of example 2. The above description shows that, by using the cationic polymer nanoparticles as the carrier of the snow lotus herb extract, and preferably mixing the snow lotus herb extract with the polymerization monomer, the snow lotus herb extract can be stably adsorbed in the emulsification polymerization process, so that the snow lotus herb extract is supported in the cationic polymer nanoparticles to form a snow lotus herb nano-composite, on one hand, the supporting rate of the snow lotus herb extract on the cationic polymer nanoparticles can be increased, on the other hand, the adsorption adhesion of the cationic polymer nanoparticles, on which the snow lotus herb extract is supported, on the surface of the non-woven fabric fibers can also be increased, and the loss of active ingredients in the snow lotus herb extract during storage can be slowed down.
In the comparative example 2, the non-woven fabric is infiltrated by the snow lotus extract dispersion liquid prepared by mixing the snow lotus extract and the ethanol water solution, the rutin content in the prepared functional core layer 2 is higher than that in the example 2, and the rutin content reduction rate after the snow lotus extract is stored for 30 days, 60 days and 90 days is higher than that in the example 2, which shows that the snow lotus extract is added into the emulsification polymerization process of the cationic polymer nano particles, the prepared snow lotus nano composite is further prepared into snow lotus emulsion, and the snow lotus emulsion is further infiltrated into the non-woven fabric, so that the adsorption and adhesion of the snow lotus extract on the surface of the non-woven fabric fiber can be improved, and the loss of active ingredients in the snow lotus extract during the storage period can be reduced.
(II) evaluation of use
The sanitary napkins obtained in example 2 and comparative example 1 were subjected to a trial test by volunteers who were females of registered duties of Guangdong province, 16 females in total, each of which was divided into two groups of 8 females, the sanitary napkin obtained in example 2 was continuously used by the first group for three months, and the sanitary napkin obtained in comparative example 1 was continuously used by the second group for three months.
Wherein, the first group of personnel condition respectively is: two years old (average physiological phase of three months is 7 days), one year old (average physiological phase of three months is 8 days), one year old (average physiological phase of three months is 7 days), two years old (average physiological phase of three months is 7 days), one year old (average physiological phase of three months is 6 days), and one year old (average physiological phase of three months is 6 days) at 22 years old;
the second group of people conditions were: two years of 23 (7 days in the mean physiology period of three months), two years of 26 (8 days in the mean physiology period of three months), two years of 30 (7 days in the mean physiology period of three months), one (6 days in the mean physiology period of three months), and one (7 days in the mean physiology period of three months) of 36.
The using conditions and effects of the two groups of people who use the sanitary towel for two months and three months are respectively interviewed, and the using evaluation is summarized as the following table 5:
TABLE 5 evaluation of use of sanitary napkins prepared in example 2 and comparative example 1
As can be seen from table 5 above, the sanitary napkin further prepared by using the functional core layer 2 containing the snow lotus herb extract has a slight cool skin feeling during the use period, and it is possible that the peppermint oil component of the functional core layer 2 has a cooling effect on the skin, so that the stuffiness feeling of the sanitary napkin during the menstruation period of women can be reduced to a certain extent; after the sanitary towel is used for two months or three months, the blood clots of the female in the menstruation period tend to decrease, and the fact that the sanitary towel further prepared by the functional core layer 2 containing the snow lotus herb extract has a certain external auxiliary function of conditioning the cold in the uterus during the use period is proved.
The specific embodiments are only for explaining the present application and are not limiting to the present application, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the claims of the present application.
Claims (10)
1. A sanitary towel for relieving cold in uterus is characterized in that: the sanitary towel comprises a surface layer (1), a functional core layer (2), an absorption layer (3), a bottom film layer (4) and a release paper layer (5), wherein the surface layer (1), the functional core layer (2), the absorption layer (3), the bottom film layer (4) and the release paper layer (5) are sequentially arranged from the upper surface to the lower surface, and the functional core layer (2) is prepared by dipping non-woven fabrics into snow lotus emulsion and then drying.
2. A sanitary napkin for relieving cold in the uterus according to claim 1, wherein: the snow lotus herb emulsion is prepared by the following steps:
adding 2-3 parts by weight of emulsifier into 20-30 parts by weight of ethanol water solution, stirring uniformly, then adding 2-3 parts by weight of snow lotus nano-composite and 0.5-1.0 part by weight of mint essential oil, and dispersing uniformly by ultrasound to obtain a mixture A;
adding 1-1.2 parts by weight of emulsifier into 55-60 parts by weight of deionized water, uniformly stirring, heating to 65-70 ℃, adding 6-8 parts by weight of stabilizer, and uniformly stirring to obtain a mixture B;
and cooling the mixture B to 55-62 ℃, adding the mixture A while carrying out homogeneous stirring, continuing to carry out homogeneous stirring for 20-30min after the addition is finished, then adding 5-10 parts by weight of ethanol aqueous solution, and carrying out homogeneous stirring for 10-15min to obtain the snow lotus emulsion.
3. A sanitary napkin for relieving cold in the uterus according to claim 2, wherein: in the preparation of the mixture A and the preparation of the mixture B, each weight part of the emulsifier is formed by mixing octadecyl polyoxyethylene ether biquaternary ammonium salt and dodecyl ammonium chloride according to the weight ratio of 2-4.
4. A sanitary napkin for relieving cold in the uterus according to claim 2, wherein: each weight part of the stabilizer comprises 2-3 weight parts of carboxymethyl cellulose, 1-2 weight parts of sodium alginate, 0.3-1.0 weight part of sodium starch octenyl succinate and 1.5-2.5 weight parts of modified starch.
5. A sanitary napkin for relieving cold in the uterus according to claim 2, wherein: in the preparation of the mixture A, the mass fraction of the ethanol water solution is 60-70%; the ultrasonic frequency of ultrasonic dispersion is 15000-18000Hz, and the ultrasonic time is 10-12min;
in the preparation of the mixture B, the homogenizing stirring speed is 2800-4000rpm;
in the process of adding the mixture A into the mixture B, the homogenizing and stirring rotating speed is 2800-3200rpm, and the homogenizing and stirring rotating speed after the mixture A is added is 2800-4000rpm;
after the mixture A is completely added into the mixture B, the mass fraction of the ethanol aqueous solution is 60-70%.
6. A sanitary napkin for relieving cold in the uterus according to claim 2, wherein: the snow lotus herb nano composite is prepared by the following steps:
adding 0.2-0.8 weight part of hexadecyl trimethyl ammonium bromide into 50-60 weight parts of deionized water, and uniformly stirring; then adding 10-15 parts by weight of styrene, 0.1-0.5 part by weight of acrylic acid, 0.5-2 parts by weight of butyl acrylate and 4-5 parts by weight of snow lotus herb extract, and homogenizing and stirring for 20-30min to obtain a component I;
uniformly stirring 0.1-0.3 part by weight of hexadecyl trimethyl ammonium bromide, 0.05-0.15 part by weight of ammonium persulfate and 10-12 parts by weight of deionized water to obtain a component II;
and (3) in a protective atmosphere, dropwise adding the component II into the component I while homogenizing and stirring, after dropwise adding, carrying out heat preservation reaction, carrying out sealed heat preservation for 90-150min at the temperature of 70-80 ℃, cooling to below 40 ℃, and discharging to obtain the snow lotus herb nano-composite.
7. A sanitary napkin for relieving cold in the uterus according to claim 6, wherein: in the preparation of the component I, the rotation speed of homogeneous stirring is 2500-3000rpm; in the process of dropwise adding the ammonium persulfate, the homogenizing stirring speed of the component I is 2000-2200rpm.
8. A sanitary napkin for relieving cold in the uterus according to claim 6, wherein: the snow lotus herb extract is prepared by the following steps:
cleaning herba Saussureae Involueratae, drying, pulverizing, and sieving with 60-100 mesh sieve;
adding pulverized herba Adonidis into supercritical extraction equipment, and extracting with CO 2 And (3) performing supercritical fluid extraction on the extract fluid to collect volatile oil and grease extract to obtain the snow lotus herb extract.
9. A sanitary napkin for relieving cold in the uterus according to claim 8, wherein: controlling CO in the supercritical fluid extraction 2 The flow rate is 15-25L/h, the extraction temperature is 38-50 deg.C, the extraction time is 2-3h, the extraction pressure is 15-25MPa, the separation temperature is 25-32 deg.C, and the separation pressure is 3-6MPa.
10. A method of making a cold womb relieving sanitary napkin as claimed in any one of claims 1 to 9, wherein: the method comprises the following steps:
soaking a sterilized non-woven fabric into the snow lotus emulsion for 30-50min, and drying to obtain a functional core layer (2);
sequentially stacking the surface layer (1), the functional core layer (2) and the absorption layer (3), and then performing press-fitting treatment on the edges to obtain a composite layer;
then the bottom film layer (4) is attached to the surface, close to the absorption layer, of the composite layer, the edge of the composite layer and the edge of the bottom film layer are subjected to full-circle edge sealing, and cutting molding is carried out; then applying adhesive on the surface of the release paper layer (5), then attaching the adhesive to the bottom film layer (4), transferring the adhesive to the bottom film layer (4), then attaching an outer packaging film needle to the back of the release paper layer (5), packaging and sealing to obtain the sanitary towel finished product.
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