CN115804689A - Preparation method of antibacterial breathable sanitary towel - Google Patents
Preparation method of antibacterial breathable sanitary towel Download PDFInfo
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- CN115804689A CN115804689A CN202211523283.9A CN202211523283A CN115804689A CN 115804689 A CN115804689 A CN 115804689A CN 202211523283 A CN202211523283 A CN 202211523283A CN 115804689 A CN115804689 A CN 115804689A
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- core layer
- absorption core
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- 238000001035 drying Methods 0.000 claims abstract description 34
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Images
Abstract
The invention provides a preparation method of a bacteriostatic breathable sanitary towel. The invention discloses a bacteriostatic breathable sanitary towel which comprises the following components: a surface rapid-permeation layer, a bacteriostatic chip, an intermediate absorption core layer and a leakage-proof bottom layer. The method comprises the steps of soaking non-woven fabrics in hydrophilic finishing liquid and baking to obtain a surface rapid-permeation layer; the antibacterial chip is prepared by the steps of raw material pretreatment, crushing, extraction, dehydration drying, filtration, concentration, mixing and spraying; mixing and pressing modal fibers and chitin fibers to obtain an intermediate absorption core layer; preparing a leakage-proof bottom layer by selecting a leakage-proof breathable basement membrane; and cutting the prepared surface rapid-permeation layer, the antibacterial chip, the middle absorption core layer and the leakage-proof bottom layer according to the size, and then sequentially bonding the cut surface rapid-permeation layer, the antibacterial chip, the middle absorption core layer and the leakage-proof bottom layer together to obtain the antibacterial breathable sanitary towel. According to the invention, the traditional Chinese medicine extract is grafted on the antibacterial chip, and the traditional Chinese medicine substances have synergistic effect, so that the breeding and propagation of microorganisms are effectively inhibited, and meanwhile, the traditional Chinese medicine has a protective effect on skin mucosa, so that the stimulation is reduced, and the skin itch is avoided.
Description
Technical Field
The invention belongs to the technical field of disposable sanitary products, and particularly relates to a preparation method of a bacteriostatic breathable sanitary towel.
Background
Women have a menstruation each month after they have developed maturity, the menstrual cycle is generally between 12 and 51 years old, and the menstrual period of women is about 3 to 7 days. During the menstrual period, the skin of sensitive parts of women is most easily damaged, and partial women feel local skin itch and burning pain during the menstrual period, so that the selection of a proper sanitary towel is very important. The sanitary towel is selected from the aspects of dryness, absorption, ventilation and the like, the use of the sanitary towel is closely related to the gynecological health, the physiological structure of a woman is special, bacteria in the vagina in a physiological period are increased exponentially compared with the ordinary state, microorganisms are easy to breed and propagate in the sanitary towel, the resistance of reproductive organs is reduced, the infection is easy to occur, the body health of the woman is affected, and related gynecological diseases are easily caused due to improper use of the sanitary towel in the menstrual period.
The existing sanitary towels have a plurality of defects in the bacteriostatic aspect and are poor in female experience when in use, so that the problem is solved by providing a preparation method of the bacteriostatic breathable sanitary towel.
Disclosure of Invention
A method for preparing bacteriostatic breathable sanitary napkin comprises a surface rapid-permeation layer, a bacteriostatic chip, an intermediate absorption core layer and a leakage-proof bottom layer. On the basis, the traditional Chinese medicine extract is grafted on the antibacterial chip, and the traditional Chinese medicine substances have synergistic effect, so that the growth and the reproduction of microorganisms are effectively inhibited, and meanwhile, the traditional Chinese medicine extract has a protective effect on skin mucosa, reduces stimulation and avoids skin itch.
A preparation method of a bacteriostatic breathable sanitary towel comprises the following steps:
s1: preparation of surface fast-permeation layer
And (2) placing the non-woven fabric in 40-45wt% of hydrophilic finishing liquid, soaking for 1-2h, controlling the liquid carrying rate at 50-70%, and baking at 180-200 ℃ for 20-45s to obtain the surface rapid-permeation layer.
S2: preparation of antibacterial chip
Firstly, preparing a plant antibacterial liquid, and spraying the plant antibacterial liquid on the bamboo charcoal fiber to obtain an antibacterial chip;
s3: preparation of an intermediate absorbent core
Placing the intermediate absorption core layer material in a sodium hydroxide aqueous solution for soaking, washing and drying to obtain a pretreated intermediate absorption core layer material, then placing the pretreated intermediate absorption core layer material in a ceric ammonium nitrate aqueous solution for soaking, drying to obtain a modified intermediate absorption core layer material, then placing the modified intermediate absorption core layer material in a bacterial cellulose compound aqueous solution for soaking, and drying to obtain an intermediate absorption core layer;
s4: preparation of a leakproof bottom layer
Selecting an anti-leakage breathable basement membrane to prepare an anti-leakage bottom layer;
s5: bonding
Cutting the surface rapid-permeation layer, the antibacterial chip, the middle absorption core layer and the leakage-proof bottom layer prepared in the steps according to the size, and then sequentially bonding the cut surface rapid-permeation layer, the antibacterial chip, the middle absorption core layer and the leakage-proof bottom layer together by using hot melt adhesive to prepare the antibacterial breathable sanitary towel.
Further, the nonwoven fabric and the hydrophilic finishing liquid in the step S1 are mixed according to a ratio of 1g: (20-30) mL.
Further, the hydrophilic finishing liquid in the step S1 is a DP-1001 hydrophilic finishing agent.
Further, the preparation method of the antibacterial chip in the step S2 specifically includes the following steps:
s2.1 raw material pretreatment
Preparing high-quality origanum vulgaris, cinnamon, thyme and tea tree leaves, selecting, cleaning and drying;
s2.2 crushing
Respectively crushing oregano, cinnamon, thyme and tea leaves, and sieving with a 20-60-mesh sieve to obtain oregano coarse powder, cinnamon coarse powder, thyme coarse powder and tea leaf coarse powder;
s2.3: extraction of
Respectively putting the oregano coarse powder, the cinnamon coarse powder, the thyme coarse powder and the tea leaf coarse powder obtained in the previous steps into a container, respectively adding 95% ethanol with the weight of 3-5 times of the weight of the oregano coarse powder, the cinnamon coarse powder, the thyme coarse powder and the tea leaf coarse powder into the container, then carrying out reflux extraction in water bath for three times, each time for 30-45min, and combining the three extracting solutions to obtain oregano extracting solution, cinnamon extracting solution, thyme extracting solution and tea leaf extracting solution;
s2.4: dewatering and drying
Adding anhydrous sodium sulfate into the oregano extracting solution, the cinnamon extracting solution, the thyme extracting solution and the tea leaf extracting solution obtained in the step (a) for drying;
s2.5: filtration
Filtering the dried oregano extract, cinnamon extract, thyme extract and tea tree leaf extract, and separating filtrate and filter residue;
s2.6: concentrating
Centrifuging the above filtrates respectively, and concentrating the supernatant to obtain Oregano concentrate, cortex Cinnamomi concentrate, herba Thymi concentrate and folium Camelliae sinensis concentrate;
s2.7: mixing
Mixing 4-10 parts of oregano concentrated solution, 3-5 parts of cinnamon concentrated solution, 6-12 parts of thyme concentrated solution and 1-5 parts of tea leaf concentrated solution obtained in the previous step with 5-8 parts of litsea cubeba essential oil and 4-7 parts of clove essential oil, and uniformly stirring to obtain plant antibacterial liquid;
s2.8: spraying coating
And (3) uniformly spraying the plant antibacterial liquid obtained in the step on the bamboo charcoal fiber to obtain the antibacterial chip.
Further, the concentration of the oregano concentrated solution, the cinnamon concentrated solution, the thyme concentrated solution and the tea leaf concentrated solution obtained in the step S2.6 is 20-35%.
Further, the spraying amount in the step S2.8 is 2-8 g of plant antibacterial liquid sprayed on per square meter of bamboo charcoal fiber.
Further, the preparation of the intermediate absorbent core layer in the step S3 specifically includes the following steps:
s3.1: soaking the intermediate absorption core layer material in 15-25wt% sodium hydroxide water solution for 10-15nin, raising the temperature to 115-130 ℃, stirring, taking out the intermediate absorption core layer material, washing and drying to obtain an alkali-treated intermediate absorption core layer material;
s3.2: carrying out normal pressure plasma jet treatment on the intermediate absorption core layer material subjected to the alkaline treatment for 2-3min to obtain a pretreated intermediate absorption core layer material;
s3.3: placing the pretreated intermediate absorption core layer material in a 2-6wt% ammonium ceric nitrate aqueous solution to be soaked for 1.5-2h, controlling the liquid carrying rate to be 60-90%, and drying at 80-120 ℃ for 30-45min to obtain a modified intermediate absorption core layer material;
s3.4: and (3) soaking the modified intermediate absorption core layer material in 4-9wt% of bacterial cellulose compound aqueous solution for 1.5-2h, controlling the liquid carrying rate to be 60-90%, and drying at 80-120 ℃ for 30-45min to obtain the intermediate absorption core layer.
Further, in the atmospheric pressure plasma jet in the step S3.2, helium is used as a carrier, oxygen is used as a reaction gas, and the volume ratio of helium to oxygen is (97-99): (1-3) mixing.
Further, the intermediate absorbent core layer material prepared in the step S3 is prepared from modal fibers and chitin fibers according to the formula (60-90): (5-20) mixing the components in a mass ratio, and pressing the mixture by a water-punched non-woven fabric production process to obtain the water-punched non-woven fabric.
Compared with the prior art, the invention has the advantages and beneficial effects that:
1. according to the antibacterial breathable sanitary towel prepared by the invention, active substances such as carvacrol and thymol in origanum vulgaris, active substances such as cinnamic aldehyde in cinnamon, active substances such as linalool and linalyl acetate in thyme, active substances such as tea polyphenol, amino acid, tea polysaccharide and caffeine in tea tree leaves and the like are extracted, so that the prepared antibacterial breathable sanitary towel contains the active substances in the traditional Chinese medicines, and the active substances have synergistic effect, can inhibit the growth and reproduction of microorganisms, simultaneously has a protective effect on skin mucosa, reduces irritation and avoids skin itch.
2. According to the bacteriostatic breathable sanitary towel prepared by the invention, the litsea cubeba essential oil and the clove essential oil are added, and active substances in the litsea cubeba essential oil and the clove essential oil can destroy the structural integrity of staphylococcus aureus, interfere energy metabolism and oxidize damage, so that the prepared bacteriostatic breathable sanitary towel has the function of inhibiting specific staphylococcus aureus.
3. According to the antibacterial breathable sanitary towel prepared by the invention, the intermediate absorption core layer material is subjected to alkali washing treatment, normal-pressure plasma jet treatment, modification treatment and bacterial cellulose treatment, so that the firmness of the intermediate absorption core layer material is improved, fluff and flock are not easy to fall off, pruritus and discomfort can be caused, the bacterial cellulose has good air permeability and hydrophilicity, and the water absorption and air permeability of the prepared sanitary towel are improved.
4. The bacteriostatic breathable sanitary towel prepared by the invention realizes the bacteriostatic effect of the sanitary towel by using the extracts of natural plants, has the advantages of bacteriostatic and breathable property, no influence on the vaginal skin of women, simple preparation method, low cost and convenient operation.
Drawings
Fig. 1 is a flow chart of a method for preparing a bacteriostatic breathable sanitary napkin adopted in the embodiment of the present invention.
Fig. 2 is a flowchart of a method for preparing a bacteriostatic chip according to an embodiment of the present invention.
Fig. 3 is a raw material proportioning diagram of the plant bacteriostatic liquid in the bacteriostatic chip adopted by the embodiment of the invention.
Detailed Description
The present invention will be further described with reference to specific embodiments for making the objects, technical solutions and advantages of the present invention more apparent, but the present invention is not limited to these examples. It should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment. In the invention, all parts and percentages are mass units, and the adopted equipment, raw materials and the like can be purchased from the market or are commonly used in the field. The methods in the following examples are all conventional in the art unless otherwise specified.
The present invention will be described in further detail with reference to specific examples.
Example 1
A method for preparing a bacteriostatic breathable sanitary towel, as shown in fig. 1, fig. 2 and fig. 3, comprises the following steps:
s1: preparation of surface Rapid penetration layer
And (2) placing the non-woven fabric in 45wt% of hydrophilic finishing liquid for soaking for 2 hours, wherein the mass ratio of the non-woven fabric to the hydrophilic finishing liquid is 1g:25mL, using DP-1001 hydrophilic finishing agent as hydrophilic finishing liquid, controlling the liquid carrying rate at 65%, and baking at 180 ℃ for 45s to obtain a surface rapid-permeation layer;
s2: preparation of antibacterial chip
Preparing oregano, cinnamon, thyme and tea leaves which are good in quality, selecting, cleaning and drying, respectively crushing the dried oregano, cinnamon, thyme and tea leaves, sieving by a 40-mesh sieve to obtain oregano coarse powder, cinnamon coarse powder, thyme coarse powder and tea leaf coarse powder, respectively putting the oregano coarse powder, cinnamon coarse powder, thyme coarse powder and tea leaf coarse powder into a container, respectively adding 4 times of 95% ethanol by weight into the container, carrying out reflux extraction in water bath for three times, carrying out 45min each time, combining the extracting solutions obtained in the three times to obtain oregano extracting solution, cinnamon extracting solution, thyme extracting solution and tea leaf extracting solution, respectively drying and filtering the oregano extracting solution, cinnamon extracting solution, thyme extracting solution and tea leaf extracting solution by anhydrous sodium sulfate, respectively centrifuging the filtrate, taking the supernatant, concentrating until the concentration is 28%, the oregano concentrated solution, the cinnamon concentrated solution, the thyme concentrated solution and the tea leaf concentrated solution are obtained, the oregano concentrated solution contains active substances of carvacrol and thymol, the active substances have antibacterial property, drug resistance is not easy to generate, adverse reaction is small, the immunity of organisms is enhanced, and the like, the cinnamon concentrated solution contains active substances of cinnamaldehyde, cinnamyl acetate, cinnamic acid, phenylpropyl acetate, and the like, the active substances have antibacterial, anti-inflammatory, blood vessel dilating, antioxidant and anti-tumor effects, the thyme concentrated solution contains active substances of linalool and linalyl acetate, the active substances have the effects of resisting virus, resisting parasite, resisting bacteria, resisting microorganism, resisting mildew, killing parasite, maintaining uterus, caring skin, and the like, the tea leaf concentrated solution contains active substances of tea polyphenol, amino acid, tea polysaccharide, caffeine, and the like, and the active substances have the effects of resisting oxidation and removing free radicals, 6 parts of origanum vulgaris concentrated solution, 3 parts of cinnamon concentrated solution, 7 parts of thyme concentrated solution and 2 parts of tea leaf concentrated solution are mixed with 5 parts of litsea cubeba essential oil and 5 parts of clove essential oil and stirred uniformly to obtain plant antibacterial solution, the litsea cubeba essential oil contains active substances of citral, limonene, methyl heptenone, linalool, geraniol, pinene and the like, the active substances have wide antibacterial and antioxidant activities, the clove essential oil contains active substances of eugenol, caryophyllene, eugenol acetate and methyl amyl ketone, the active substances have the effects of resisting bacteria, resisting fungi, resisting viruses and the like, the plant antibacterial solution is uniformly sprayed on bamboo charcoal fibers, the spraying amount is 6 g of the plant antibacterial solution sprayed on per square meter of the bamboo charcoal fibers, the antibacterial chip is obtained, the prepared antibacterial chip contains the active substances in the traditional Chinese medicines, the traditional Chinese medicine substances have synergistic effect, the growth and reproduction of microorganisms can be inhibited, the skin is protected, the skin irritation is reduced, and the pruritus is avoided;
s3: preparation of an intermediate absorbent core
And (2) soaking the intermediate absorption core layer material in 25wt% of sodium hydroxide aqueous solution for 15nin, wherein the intermediate absorption core layer material is prepared from modal fibers and chitin fibers according to the weight ratio of 70:15, heating to 120 ℃, stirring, fishing out the intermediate absorption core layer material, washing and drying to obtain the intermediate absorption core layer material subjected to alkaline treatment, performing normal-pressure plasma jet treatment on the intermediate absorption core layer material subjected to alkaline treatment for 3min, wherein helium is used as a carrier in the normal-pressure plasma jet, oxygen is used as a reaction gas, and the volume ratio of the helium to the oxygen is 97:3, mixing to obtain a pretreated middle absorption core layer material, placing the pretreated middle absorption core layer material in a 5wt% ammonium ceric nitrate aqueous solution for soaking for 2 hours, controlling the liquid carrying rate to be 75%, drying at 90 ℃ for 45 minutes to obtain a modified middle absorption core layer material, placing the modified middle absorption core layer material in an 8wt% bacterial cellulose composite aqueous solution for soaking for 2 hours, controlling the liquid carrying rate to be 85%, drying at 90 ℃ for 45 minutes to obtain a middle absorption core layer, and performing alkali washing treatment, normal-pressure plasma jet treatment, modification treatment and bacterial cellulose treatment to improve the firmness of the middle absorption core layer material, prevent hair and flock from falling off, cause pruritus and discomfort, ensure that the bacterial cellulose has good air permeability and hydrophilicity, and improve the water absorption and air permeability of the prepared sanitary towel;
s4: preparation of a leakproof bottom layer
Preparing a leakage-proof bottom layer by selecting a leakage-proof breathable basement membrane;
s5: bonding
Cutting the surface rapid-permeation layer, the antibacterial chip, the middle absorption core layer and the leakage-proof bottom layer prepared in the steps according to the size, and then sequentially bonding the cut surface rapid-permeation layer, the antibacterial chip, the middle absorption core layer and the leakage-proof bottom layer together by using hot melt adhesive to prepare the antibacterial breathable sanitary towel.
Example 2
A method for preparing a bacteriostatic breathable sanitary towel, as shown in fig. 1, 2 and 3, comprises the following steps:
s1: preparation of surface Rapid penetration layer
And (2) placing the non-woven fabric in 45wt% of hydrophilic finishing liquid for soaking for 2 hours, wherein the mass ratio of the non-woven fabric to the hydrophilic finishing liquid is 1g:25mL, taking DP-1001 as hydrophilic finishing agent as hydrophilic finishing liquid, controlling the liquid carrying rate at 65%, and baking at 180 ℃ for 45s to obtain a surface rapid-permeation layer;
s2: preparation of antibacterial chip
Preparing oregano, cinnamon, thyme and tea leaves which are good in quality, selecting, cleaning and drying, respectively crushing the dried oregano, cinnamon, thyme and tea leaves, sieving by a 40-mesh sieve to obtain oregano coarse powder, cinnamon coarse powder, thyme coarse powder and tea leaf coarse powder, respectively putting the oregano coarse powder, cinnamon coarse powder, thyme coarse powder and tea leaf coarse powder into a container, respectively adding 4 times of 95% ethanol by weight into the container, carrying out reflux extraction in water bath for three times, carrying out 45min each time, combining the extracting solutions obtained in the three times to obtain oregano extracting solution, cinnamon extracting solution, thyme extracting solution and tea leaf extracting solution, respectively drying and filtering the oregano extracting solution, cinnamon extracting solution, thyme extracting solution and tea leaf extracting solution by anhydrous sodium sulfate, respectively centrifuging the filtrate, taking the supernatant, concentrating until the concentration is 28%, the concentrated solution of origanum vulgaris, the concentrated solution of cinnamon, the concentrated solution of thyme and the concentrated solution of tea leaves are obtained, the concentrated solution of origanum vulgaris contains carvacrol and thymol which are active substances and have antibacterial property, drug resistance is not easy to generate, adverse reaction is small, immunity of organisms is enhanced and the like, the concentrated solution of cinnamon contains cinnamaldehyde, cinnamyl acetate, cinnamic acid, phenylpropyl acetate and the like which are active substances and have antibacterial, anti-inflammatory, blood vessel dilating, antioxidant and anti-tumor effects, the concentrated solution of thyme contains linalool and linalyl acetate which are active substances and have the antiviral, antiparasitic, antibacterial, antimicrobial, antifungal, parasite killing, uterus maintaining, skin caring and the like, the concentrated solution of tea leaves contains tea polyphenol, amino acid, tea polysaccharide, caffeine and the like which are active substances and have the effects of resisting oxidation and eliminating free radicals, 7 parts of oregano concentrated solution, 4 parts of cinnamon concentrated solution, 9 parts of thyme concentrated solution and 3 parts of tea leaf concentrated solution are mixed with 6 parts of litsea cubeba essential oil and 6 parts of clove essential oil and stirred uniformly to obtain plant antibacterial solution, the litsea cubeba essential oil contains active substances of citral, limonene, methyl heptenone, linalool, geraniol, pinene and the like, the active substances have wide antibacterial and antioxidant activities, the clove essential oil contains active substances of eugenol, caryophyllene, eugenol acetate and methyl amyl ketone, the active substances have the effects of antibacterium, antifungal and antivirus and the like, the plant antibacterial solution is uniformly sprayed on bamboo charcoal fibers, the spraying amount is 6 g of the plant antibacterial solution sprayed on each square meter of the bamboo charcoal fibers, and the prepared antibacterial chip contains the active substances in the traditional Chinese medicines, and the traditional Chinese medicines have synergistic effect and can inhibit the growth and propagation of microorganisms and simultaneously have the protective effect on skin, reduce stimulation and avoid pruritus;
s3: preparation of intermediate absorbent core layer
And (2) soaking the intermediate absorption core layer material in 25wt% of sodium hydroxide aqueous solution for 15nin, wherein the intermediate absorption core layer material is prepared from modal fibers and chitin fibers according to the weight ratio of 70:15, heating to 120 ℃, stirring, fishing out the intermediate absorption core layer material, washing and drying to obtain the intermediate absorption core layer material subjected to alkaline treatment, performing normal-pressure plasma jet treatment on the intermediate absorption core layer material subjected to alkaline treatment for 3min, wherein helium is used as a carrier in the normal-pressure plasma jet, oxygen is used as a reaction gas, and the volume ratio of the helium to the oxygen is 97:3, mixing to obtain a pretreated middle absorption core layer material, placing the pretreated middle absorption core layer material in a 5wt% ammonium ceric nitrate aqueous solution for soaking for 2 hours, controlling the liquid carrying rate to be 75%, drying at 90 ℃ for 45 minutes to obtain a modified middle absorption core layer material, placing the modified middle absorption core layer material in an 8wt% bacterial cellulose composite aqueous solution for soaking for 2 hours, controlling the liquid carrying rate to be 85%, drying at 90 ℃ for 45 minutes to obtain a middle absorption core layer, and performing alkali washing treatment, normal-pressure plasma jet treatment, modification treatment and bacterial cellulose treatment to improve the firmness of the middle absorption core layer material, prevent hair and flock from falling off, cause pruritus and discomfort, ensure that the bacterial cellulose has good air permeability and hydrophilicity, and improve the water absorption and air permeability of the prepared sanitary towel;
s4: preparation of a leakproof bottom layer
Preparing a leakage-proof bottom layer by selecting a leakage-proof breathable basement membrane;
s5: bonding
Cutting the surface rapid-permeation layer, the antibacterial chip, the middle absorption core layer and the leakage-proof bottom layer prepared in the steps according to the size, and then sequentially bonding the cut surface rapid-permeation layer, the antibacterial chip, the middle absorption core layer and the leakage-proof bottom layer together by using hot melt adhesive to prepare the antibacterial breathable sanitary towel.
Example 3
A method for preparing a bacteriostatic breathable sanitary towel, as shown in fig. 1, 2 and 3, comprises the following steps:
s1: preparation of surface Rapid penetration layer
Placing non-woven fabrics in 45wt% of hydrophilic finishing liquid, and soaking for 2 hours, wherein the mass ratio of the non-woven fabrics to the hydrophilic finishing liquid is 1g:25mL, using DP-1001 hydrophilic finishing agent as hydrophilic finishing liquid, controlling the liquid carrying rate at 65%, and baking at 180 ℃ for 45s to obtain a surface rapid-permeation layer;
s2: preparation of antibacterial chip
Preparing oregano, cinnamon, thyme and tea leaves which are good in quality, selecting, cleaning and drying, respectively crushing the dried oregano, cinnamon, thyme and tea leaves, sieving by a 40-mesh sieve to obtain oregano coarse powder, cinnamon coarse powder, thyme coarse powder and tea leaf coarse powder, respectively putting the oregano coarse powder, cinnamon coarse powder, thyme coarse powder and tea leaf coarse powder into a container, respectively adding 4 times of 95% ethanol by weight into the container, carrying out reflux extraction in water bath for three times, carrying out 45min each time, combining the extracting solutions obtained in the three times to obtain oregano extracting solution, cinnamon extracting solution, thyme extracting solution and tea leaf extracting solution, respectively drying and filtering the oregano extracting solution, cinnamon extracting solution, thyme extracting solution and tea leaf extracting solution by anhydrous sodium sulfate, respectively centrifuging the filtrate, taking the supernatant, concentrating until the concentration is 28%, the oregano concentrated solution, the cinnamon concentrated solution, the thyme concentrated solution and the tea leaf concentrated solution are obtained, the oregano concentrated solution contains active substances of carvacrol and thymol, the active substances have antibacterial property, drug resistance is not easy to generate, adverse reaction is small, the immunity of organisms is enhanced, and the like, the cinnamon concentrated solution contains active substances of cinnamaldehyde, cinnamyl acetate, cinnamic acid, phenylpropyl acetate, and the like, the active substances have antibacterial, anti-inflammatory, blood vessel dilating, antioxidant and anti-tumor effects, the thyme concentrated solution contains active substances of linalool and linalyl acetate, the active substances have the effects of resisting virus, resisting parasite, resisting bacteria, resisting microorganism, resisting mildew, killing parasite, maintaining uterus, caring skin, and the like, the tea leaf concentrated solution contains active substances of tea polyphenol, amino acid, tea polysaccharide, caffeine, and the like, and the active substances have the effects of resisting oxidation and removing free radicals, the preparation method comprises the following steps of mixing 9 parts of origanum vulgaris concentrated solution, 4 parts of cinnamon concentrated solution, 11 parts of thyme concentrated solution and 2 parts of tea leaf concentrated solution with 8 parts of litsea cubeba essential oil and 4 parts of clove essential oil, uniformly stirring to obtain plant antibacterial solution, wherein the litsea cubeba essential oil contains active substances such as citral, limonene, methyl heptenone, linalool, geraniol and pinene, the active substances have wide antibacterial and antioxidant activities, the clove essential oil contains active substances such as eugenol, caryophyllene, eugenol acetate and methyl amyl ketone, the active substances have the effects of resisting bacteria, resisting fungi and resisting viruses, the plant antibacterial solution is uniformly sprayed on bamboo charcoal fibers, the spraying amount is 6 g of the plant antibacterial solution sprayed on per square meter of the bamboo charcoal fibers, the antibacterial chip is obtained, the prepared antibacterial chip contains the active substances in the traditional Chinese medicines, and the traditional Chinese medicine substances have synergistic effect, can inhibit the growth and reproduction of microorganisms, simultaneously have the protective effect on skin, reduce irritation, avoid pruritus of the skin and the pruritus of the bamboo charcoal;
s3: preparation of intermediate absorbent core layer
Soaking the intermediate absorption core layer material in 25wt% of sodium hydroxide aqueous solution for 15nin, wherein the intermediate absorption core layer material is prepared from modal fibers and chitin fibers according to the weight ratio of 70:15, heating to 120 ℃, stirring, fishing out the intermediate absorption core layer material, washing and drying to obtain the intermediate absorption core layer material subjected to alkaline treatment, performing normal-pressure plasma jet treatment on the intermediate absorption core layer material subjected to alkaline treatment for 3min, wherein helium is used as a carrier in the normal-pressure plasma jet, oxygen is used as a reaction gas, and the volume ratio of the helium to the oxygen is 97:3, mixing to obtain a pretreated middle absorption core layer material, placing the pretreated middle absorption core layer material in a 5wt% ammonium ceric nitrate aqueous solution for soaking for 2 hours, controlling the liquid carrying rate to be 75%, drying at 90 ℃ for 45 minutes to obtain a modified middle absorption core layer material, placing the modified middle absorption core layer material in an 8wt% bacterial cellulose composite aqueous solution for soaking for 2 hours, controlling the liquid carrying rate to be 85%, drying at 90 ℃ for 45 minutes to obtain a middle absorption core layer, and performing alkali washing treatment, normal-pressure plasma jet treatment, modification treatment and bacterial cellulose treatment to improve the firmness of the middle absorption core layer material, prevent hair and flock from falling off, cause pruritus and discomfort, ensure that the bacterial cellulose has good air permeability and hydrophilicity, and improve the water absorption and air permeability of the prepared sanitary towel;
s4: preparation of a leakproof bottom layer
Preparing a leakage-proof bottom layer by selecting a leakage-proof breathable basement membrane;
s5: bonding
Cutting the surface rapid-permeation layer, the antibacterial chip, the middle absorption core layer and the leakage-proof bottom layer prepared in the steps according to the size, and then sequentially bonding the cut surface rapid-permeation layer, the antibacterial chip, the middle absorption core layer and the leakage-proof bottom layer together by using hot melt adhesive to prepare the antibacterial breathable sanitary towel.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (9)
1. A preparation method of an antibacterial breathable sanitary towel is characterized by comprising the following steps:
s1: preparation of surface Rapid penetration layer
Placing the non-woven fabric in 40-45wt% of hydrophilic finishing liquid, soaking for 1-2h, controlling the liquid carrying rate at 50-70%, and baking at 180-200 ℃ for 20-45s to obtain a surface rapid-permeation layer;
s2: preparation of antibacterial chip
Firstly, preparing plant antibacterial liquid, and spraying the plant antibacterial liquid on the bamboo charcoal fiber to obtain an antibacterial chip;
s3: preparation of intermediate absorbent core layer
Placing the intermediate absorption core layer material in a sodium hydroxide aqueous solution for soaking, washing and drying to obtain a pretreated intermediate absorption core layer material, then placing the pretreated intermediate absorption core layer material in a ceric ammonium nitrate aqueous solution for soaking, drying to obtain a modified intermediate absorption core layer material, then placing the modified intermediate absorption core layer material in a bacterial cellulose compound aqueous solution for soaking, and drying to obtain an intermediate absorption core layer;
s4: preparation of leakproof bottom layer
Preparing a leakage-proof bottom layer by selecting a leakage-proof breathable basement membrane;
s5: bonding of
Cutting the surface quick-penetration layer, the antibacterial chip, the middle absorption core layer and the leakage-proof bottom layer according to the size, and bonding the cut parts together by using hot melt adhesive in sequence to obtain the antibacterial breathable sanitary towel.
2. The method for preparing a bacteriostatic breathable sanitary towel according to claim 1, wherein the non-woven fabrics and the hydrophilic finishing liquid in the step S1 are mixed according to the ratio of 1g: (20-30) mL.
3. The method for preparing a bacteriostatic breathable sanitary towel according to claim 1, wherein the hydrophilic finishing liquid in step S1 is a DP-1001 hydrophilic finishing agent.
4. The method for preparing a bacteriostatic breathable sanitary towel according to claim 1, wherein the method for preparing the bacteriostatic chip in the step S2 specifically comprises the following steps:
s2.1 raw material pretreatment
Preparing high-quality origanum vulgaris, cinnamon, thyme and tea tree leaves, selecting, cleaning and drying; s2.2 crushing
Respectively crushing oregano, cinnamon, thyme and tea tree leaves, and sieving with a 20-60-mesh sieve to obtain oregano coarse powder, cinnamon coarse powder, thyme coarse powder and tea tree leaf coarse powder;
s2.3: extraction of
Respectively putting the oregano coarse powder, the cinnamon coarse powder, the thyme coarse powder and the tea leaf coarse powder obtained in the previous steps into a container, respectively adding 95% ethanol with the weight of 3-5 times of the weight of the oregano coarse powder, the cinnamon coarse powder, the thyme coarse powder and the tea leaf coarse powder into the container, then carrying out reflux extraction in water bath for three times, each time for 30-45min, and combining the three extracting solutions to obtain oregano extracting solution, cinnamon extracting solution, thyme extracting solution and tea leaf extracting solution;
s2.4: dewatering and drying
Adding anhydrous sodium sulfate into the oregano extracting solution, the cinnamon extracting solution, the thyme extracting solution and the tea leaf extracting solution obtained in the step (a) for drying;
s2.5: filtration
Filtering the dried oregano extract, cinnamon extract, thyme extract and tea tree leaf extract, and separating filtrate and filter residue;
s2.6: concentrating
Centrifuging the above filtrates respectively, and concentrating the supernatant to obtain Oregano concentrate, cortex Cinnamomi concentrate, herba Thymi concentrate and folium Camelliae sinensis concentrate;
s2.7: mixing
Mixing 4-10 parts of oregano concentrated solution, 3-5 parts of cinnamon concentrated solution, 6-12 parts of thyme concentrated solution and 1-5 parts of tea leaf concentrated solution obtained in the previous step with 5-8 parts of litsea cubeba essential oil and 4-7 parts of clove essential oil, and uniformly stirring to obtain plant antibacterial liquid;
s2.8: spraying coating
And (3) uniformly spraying the plant antibacterial liquid obtained in the step on the bamboo charcoal fiber to obtain the antibacterial chip.
5. The method for preparing a bacteriostatic breathable sanitary towel according to claim 4, wherein the concentration of the oregano concentrate, cinnamon concentrate, thyme concentrate and tea tree leaf concentrate obtained in step S2.6 is 20-35%.
6. The method for preparing a bacteriostatic breathable sanitary napkin according to claim 4, wherein the spraying amount in step S2.8 is 2-8 g of plant bacteriostatic liquid sprayed on per square meter of bamboo charcoal fiber.
7. The method for preparing a bacteriostatic breathable sanitary towel according to claim 1, wherein the step of preparing the intermediate absorbent core layer in step S3 specifically comprises the following steps:
s3.1: soaking the intermediate absorption core layer material in 15-25wt% sodium hydroxide aqueous solution for 10-15nin, raising the temperature to 115-130 ℃, stirring, fishing out the intermediate absorption core layer material, washing and drying to obtain the alkali-treated intermediate absorption core layer material;
s3.2: carrying out normal pressure plasma jet treatment on the intermediate absorption core layer material subjected to the alkaline treatment for 2-3min to obtain a pretreated intermediate absorption core layer material;
s3.3: placing the pretreated intermediate absorption core layer material in a 2-6wt% ammonium ceric nitrate aqueous solution to be soaked for 1.5-2h, controlling the liquid carrying rate to be 60-90%, and drying at 80-120 ℃ for 30-45min to obtain a modified intermediate absorption core layer material;
s3.4: and (3) soaking the modified intermediate absorption core layer material in 4-9wt% of bacterial cellulose compound aqueous solution for 1.5-2h, controlling the liquid carrying rate to be 60-90%, and drying at 80-120 ℃ for 30-45min to obtain the intermediate absorption core layer.
8. The method for preparing a bacteriostatic breathable sanitary napkin according to claim 7, wherein in the atmospheric plasma jet in step S3.2, helium is used as a carrier, oxygen is used as a reaction gas, and the volume ratio of helium to oxygen is (96-99): (1-3) mixing.
9. The method for preparing a bacteriostatic breathable sanitary towel according to claim 1, wherein the intermediate absorbent core layer material prepared in step S3 is prepared from modal fibers and chitin fibers according to the following ratio of (60-90): (5-20) mixing the components in a mass ratio, and pressing the mixture by a water-punched non-woven fabric production process to obtain the water-punched non-woven fabric.
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