CN114191600B - Sanitary towel capable of rapidly absorbing blood and hanging side wall and preparation method thereof - Google Patents
Sanitary towel capable of rapidly absorbing blood and hanging side wall and preparation method thereof Download PDFInfo
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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
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- 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
- A61L15/18—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing inorganic materials
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- 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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- 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
- A61L15/28—Polysaccharides or their derivatives
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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
- A61L15/38—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing enzymes
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- 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
- A61L15/425—Porous materials, e.g. foams or sponges
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- 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
- A61L15/46—Deodorants or malodour counteractants, e.g. to inhibit the formation of ammonia or bacteria
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- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
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Abstract
The invention discloses a sanitary towel capable of rapidly absorbing blood and hanging at the side wall and a preparation method thereof; the sanitary towel is sequentially provided with a surface layer, a blood decomposition absorption layer, an antibacterial layer, a smell removal layer, an absorber and a bottom film from top to bottom; basement membrane both sides pressfitting forms water repellent cloth, this application is with behind the antibacterial non-woven fabrics of cellulose acetate, pure cotton fiber and chitosan microballon hot pressing system, soak in cortex moutan extract product mixed solution, reinforcing bacteriostasis, simultaneously, utilize powdered carbon to make and remove the flavor layer, be used for getting rid of the peculiar smell that the sanitary towel produced when using, utilize quillaja wood extract and ecological nutrient solution blood to make and decompose the absorbed layer, can effectual decomposition blood and blood clot, reduce menstrual blood viscosity, accelerate blood absorption, the sanitary towel of this application preparation has the flavor of removing, bacteriostasis, and towel body side wall and basement membrane separation, unsettled effect has been reached, when the product uses, the skin feels more soft.
Description
Technical Field
The invention relates to the technical field of sanitary products, in particular to a hanging side wall sanitary towel capable of quickly absorbing blood and a preparation method thereof.
Background
With the development of the times, people are increasingly conscious of health, especially women who are extremely easy to infect because of the decline of body immunity in physiological period. Accordingly, there is a growing demand for sanitary napkins that are more comfortable and snug. At present, the sanitary towel product has good absorption on water and blood simulation liquid and quick absorption, but in actual life, blood has certain viscosity or blood clots and cannot quickly pass through the surface layer of the sanitary towel and be absorbed; during the use of the sanitary towel in the menstrual period of women, the menstrual blood of women is easy to breed bacteria, peculiar smell and pruritus on the surface layer of the sanitary towel; when the sanitary towel used, the piece of cloth body and refusing water cloth junction can rub with the health product, and there is the bonding impressed watermark in traditional piece of cloth body both sides, can increase the friction, causes discomfort and allergy, consequently, how to have the problem that the sanitary towel product can decompose blood, quick absorption, reach little ecological balance, unsettled side wall is the urgent problem of awaiting the solution.
Disclosure of Invention
The invention aims to provide a side wall sanitary towel capable of rapidly absorbing blood and hanging and a preparation method thereof, and aims to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme:
the sanitary towel is sequentially provided with a surface layer, a blood decomposition absorption layer, an antibacterial layer, a smell removal layer, an absorber and a basement membrane from top to bottom; pressing the two sides of the basement membrane to form water repellent cloth; the surface layer is made of bacteriostatic non-woven fabric.
Further, the blood decomposition absorption layer is a bacteriostatic non-woven fabric soaked in a mixed solution of the quillaja saponaria extract, and the mixed solution of the quillaja saponaria extract comprises the following raw materials in parts by weight: 0.1-2 parts of soapwood extract, 1-5 parts of ecological nutrient solution, 0.1-3 parts of protease and 260.5-3 parts of PPG-26-butanol polyether.
Further, the antibacterial layer is an antibacterial non-woven fabric impregnated with a moutan bark extract mixed solution, and the moutan bark extract mixed solution comprises the following raw materials in parts by weight: 0.5-1 part of Caesalpinia spinosa gum, 0.1-2 parts of tree peony bark extract, 0.5-5 parts of ecological skin-healing agent and 0.0001-0.002 part of slow-release polyhexamethylene biguanide.
Further, the smell removing layer is an antibacterial non-woven fabric dipped with a micron-sized active coconut shell carbon powder mixed solution, and the micron-sized active coconut shell carbon powder mixed solution comprises the following raw materials in parts by weight: 0.8-3 parts of polyvinyl alcohol, 40-60 parts of water, 20-40 parts of micron-sized active coconut shell carbon powder, 4-8 parts of sodium dodecyl sulfate and 4-25 parts of polyvinyl acetate emulsion.
Furthermore, the bacteriostatic non-woven fabric is mainly prepared from modified cellulose acetate, pure cotton fibers and chitosan microspheres.
Further, the method comprises the following steps:
s1: dissolving cellulose acetate in acetone at 60 ℃, washing with ethanol, standing for 12h, performing suction filtration, drying, dissolving in a purified acetone solution at 50-60 ℃, adding triethylamine and succinic anhydride, reacting at 60-70 ℃ for 24h, washing with water, drying, dissolving in purified dimethylformamide under the condition of ice bath, adding 1-ethyl- (3-dimethylaminopropyl) carbodiimide and N-hydroxysuccinimide, reacting for 12-15h, uniformly mixing with a polypeptide dimethylformamide solution, reacting for 12-15h, adding ethanol, drying, dissolving in a mixed solution of acetone and dimethylacetamide to obtain modified cellulose acetate, and mixing, drying, shearing, melting, cooling and bonding pure cotton fibers, modified cellulose acetate and chitosan microspheres to obtain the antibacterial non-woven fabric;
s2: soaking the bacteriostatic non-woven fabric prepared in the step S1 in a mixed solution of a quillaja extract, an ecological nutrient solution, protease and PPG-26-butanol polyether-26 for reaction for 0.5-2h, standing and airing to obtain a blood decomposition absorption layer;
s3: soaking the antibacterial non-woven fabric prepared in the step S1 in a mixed solution of Caesalpinia spinosa Gum, a tree peony bark extract, ecological skin-recovering essence and slow-release polyhexamethylene biguanide, reacting for 0.5-2h, standing and airing to obtain an antibacterial layer;
s4: dissolving polyvinyl alcohol in water at 100 ℃, uniformly mixing the polyvinyl alcohol with micron-sized active coconut shell carbon powder, sodium dodecyl sulfate and polyvinyl acetate emulsion, soaking the new antibacterial non-woven fabric prepared in the step S1 in the solution, reacting for 0.5-2h, standing and airing to obtain a smell removal layer;
s5: and (2) taking the bacteriostatic non-woven fabric prepared in the step (S1) as a surface layer, pressing the two sides of the bottom film to form water-repellent cloth, cutting the surface layer, the blood decomposition and absorption layer, the antibacterial layer and the odor removal layer, bonding the surface layer, the blood decomposition and absorption layer, the antibacterial layer and the odor removal layer together from top to bottom, then reversely wrapping the absorber, and bonding the absorber and the bottom film together to obtain the sanitary towel capable of rapidly absorbing blood and hanging side walls.
Further, the ecological skin resurrection agent is an aqueous solution of inulin and fructose, the ecological nutrient solution is an aqueous solution of inulin and alpha-glucan oligosaccharide, and the pH values of the ecological skin resurrection agent and the ecological nutrient solution are 3.5-8.
Further, the preparation method of the slow-release hexamethylene biguanide comprises the following steps: dissolving yeast cells in water, standing, filtering, centrifuging upper layer liquid, adding acetone into lower layer, reacting for 20-30min, centrifuging, repeating for 2-3 times, washing with water, adding phosphoric acid solution of glutaraldehyde, reacting at 180 deg.C for 12-14h, cooling to room temperature, discarding upper layer liquid, washing lower layer with water, and drying to obtain carbon residue; dissolving carbon residue in water, mixing with polyhexamethylene biguanide aqueous solution, reacting for 5-8h, centrifuging for 3-5min, washing with water for 3-5 times, and drying;
the preparation method of the chitosan microsphere comprises the following steps: dissolving chitosan in acetic acid, uniformly mixing with 1-hydroxymethyl-5, 5-dimethylhydantoin under the condition of 100 ℃ and oil bath, condensing and refluxing for 24 hours, cooling to room temperature, distilling under reduced pressure, slowly dripping into an acetone solution, removing floccules, washing a product with acetone and ethanol, repeating for 3-5 times, drying, dissolving in an acetic acid solution, adjusting the pH value of the solution to be 6, slowly adding an aqueous solution of sodium tripolyphosphate, and carrying out ultrasonic reaction for 5-10min to obtain the chitosan microspheres.
Further, the materials required by the bacteriostatic non-woven fabric comprise, by weight: 2-5 parts of cellulose acetate, 40-60 parts of acetone, 5-10 parts of triethylamine, 0.5-2 parts of succinic anhydride, 10-20 parts of dimethylformamide, 0.5-1 part of 1-ethyl- (3-dimethylaminopropyl) carbodiimide, 0.2-1 part of N-hydroxysuccinimide, 0.2-0.4 part of polypeptide, 10-20 parts of ethanol, 70-80 parts of pure cotton fiber, 10-20 parts of modified cellulose acetate and 10-20 parts of chitosan microsphere.
Further, the materials required for the slow release of the polyhexamethylene biguanide comprise, by weight: 50-60 parts of yeast cells, 100-120 parts of water, 20-40 parts of acetone, 10-30 parts of glutaraldehyde, 2-10 parts of carbon residue and 15-25 parts of polyhexamethylene biguanide.
Further, the chitosan microsphere requires materials comprising, by weight: 3-5 parts of chitosan, 150-300 parts of acetic acid, 3-5 parts of 1-hydroxymethyl-5, 5-dimethyl hydantoin, 100-200 parts of acetone, 40-60 parts of acetic acid and 20-30 parts of sodium tripolyphosphate.
Compared with the prior art, the invention has the following beneficial effects: (1) The succinic anhydride is utilized to carry out ring-opening reaction on the cellulose acetate, the polypeptide is grafted on the surface of the cellulose acetate, and the polypeptide and the pure cotton fiber are made into bacteriostatic non-woven fabrics, so that the bacteriostatic property and the antibacterial stability of the sanitary towel are enhanced, and meanwhile, the bacteria cannot generate drug resistance to the bacteria and cannot influence the human health. The chitosan is grafted and modified by the halamine compound, so that the antibacterial property of the sanitary towel is further enhanced, the addition of the halamine compound accelerates the sterilization speed, and the antibacterial property is stable and durable.
(2) The slow-release polyhexamethylene biguanide is adsorbed on the surface of the carbon residue, the carbon residue and the slow-release polyhexamethylene biguanide form an electrostatic adsorption effect, and the sanitary towel is in direct contact with a human body, so that the pH value of the prepared slow-release polyhexamethylene biguanide conforms to a weak acid environment in the human body, a slow-release antibacterial effect is achieved, the adhesion of active ingredients is high, the orange peel extract and the polyhexamethylene biguanide can effectively resist bacteria, the ecological skin rejuvenation agent can automatically identify beneficial bacteria and harmful bacteria, nutrition is provided for the beneficial bacteria to inhibit the harmful bacteria, microbial balance is quickly established, the blood decomposition and absorption layer can effectively decompose blood and blood clots, reduce the viscosity of menstrual blood and accelerate blood absorption.
(3) The method has the advantages that the carbon finishing liquid is sprayed on the surface of the antibacterial non-woven fabric, so that the peculiar smell generated when the sanitary towel is used by a woman can be removed, the principle of carbon adsorption is adopted, the activated carbon powder is loaded on the surface of the antibacterial non-woven fabric, the effect on peculiar smell adsorption is stronger along with the increase of the carbon loading amount on the surface, the pores on the surface of the activated carbon powder are filled with water, and during subsequent drying, the moisture can be evaporated, so that the adsorption effect of the activated carbon powder on the peculiar smell can not be influenced.
(4) In addition, in the preparation process, turn up the sanitary towel top layer to the absorbent body, the pressfitting forms to refuse water cloth and plays the connection effect on the basement membrane, is connected with the water cloth of refusing on the basement membrane after the top layer turns up again to reach the separation of top layer absorbent body and basement membrane, demonstrate a unsettled effect, when using, the skin feels better soft, can not produce the discomfort of health because of the friction.
(5) The present application solves the following problems: 1. solving the problem of blood sucking speed: a layer of solution is sprayed on the surface of the product, and the solution can decompose blood, reduce the viscosity of the blood and accelerate the absorption of the blood; 2. microecological balance: functional raw materials are added in the production process of the surface layer material, so that the surface layer of the product has the functions of bacteriostasis and conditioning; 3. and (3) friction of the side wall of the towel body: in the actual production process, the connection mode of the water-repellent cloth and the surface layer can be changed, so that the two sides of the towel body are suspended, the friction between the towel body and a human body is reduced, and the softness and the comfort are improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of a side wall sanitary napkin for rapid absorption of blood;
in the figure: 1-a surface layer; 2-a blood decomposition absorbing layer; 3-an antibacterial layer; 4-deodorizing layer; 5-an absorbent body; 6-basement membrane; 7-water repellent cloth.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1: s1: dissolving 3 parts of chitosan in 150 parts of acetic acid, uniformly mixing with 3 parts of 1-hydroxymethyl-5, 5-dimethylhydantoin under the condition of 100 ℃ and oil bath, carrying out condensation reflux for 24 hours, cooling to room temperature, carrying out reduced pressure distillation, slowly dripping into 100 parts of acetone solution, removing floccules, washing a product with acetone and ethanol, repeating for 3 times, drying, dissolving into 40 parts of acetic acid solution, adjusting the pH value of the solution to be 6, slowly adding 20 parts of sodium tripolyphosphate, and carrying out ultrasonic reaction for 5min to obtain chitosan microspheres;
s2: dissolving 2 parts of cellulose acetate in 20 parts of acetone at 60 ℃, washing with ethanol, standing for 12h, performing suction filtration, drying, dissolving in 20 parts of purified acetone solution at 50 ℃, adding 5 parts of triethylamine and 0.5 part of succinic anhydride, reacting for 24h at 60 ℃, washing with water, drying, dissolving in 10 parts of purified dimethylformamide under the ice bath condition, adding 0.5 part of 1-ethyl- (3-dimethylaminopropyl) carbodiimide and 0.2 part of N-hydroxysuccinimide, reacting for 12h, uniformly mixing with 0.2 part of polypeptide dimethylformamide solution, reacting for 12h, adding 10 parts of ethanol, drying, dissolving in a mixed solution of acetone and dimethylacetamide to obtain modified cellulose acetate, mixing, drying, shearing, melting, cooling and bonding 70 parts of pure cotton fiber, 10 parts of modified cellulose acetate and 10 parts of chitosan microspheres to obtain bacteriostatic non-woven fabric;
s3: dissolving 50 parts of yeast cells in 50 parts of water, standing, filtering, centrifuging upper-layer liquid, adding 20 parts of acetone into the lower layer, reacting for 20min, centrifuging, repeating for 2 times, washing with water, adding 10 parts of a phosphoric acid solution of glutaraldehyde with the pH of 6,2%, reacting for 12h at 180 ℃, cooling to room temperature, removing the upper-layer liquid, washing the lower layer with water, and drying to obtain carbon residue; dissolving 2 parts of carbon residue in 50 parts of water, uniformly mixing with 15 parts of polyhexamethylene biguanide aqueous solution, reacting for 5 hours, centrifuging for 3 minutes, washing for 3 times with water, and drying to obtain the slow-release polyhexamethylene biguanide;
s4: soaking the antibacterial non-woven fabric prepared in the step S2 in a mixed solution of 0.1 part of quillaja saponaria tree extract, 1 part of ecological nutrient solution, 0.1 part of protease and 0.5 part of PPG-26-butanol polyether-26, reacting for 0.5h, standing and airing to obtain a blood decomposition absorption layer 2, wherein the bath ratio is 1:5;
s5: soaking the new antibacterial non-woven fabric prepared in the step S2 in a mixed solution of 0.5 part of Caesalpinia spinosa Gum, 0.1 part of tree peony bark extract, 0.5 part of ecological skin-healing agent and 0.0002 part of slow-release polyhexamethylene biguanide at 45 ℃, reacting for 0.5h, standing and airing to obtain an antibacterial layer 3, wherein the bath ratio is 1:5;
s6: dissolving 0.8 part of polyvinyl alcohol in 40 parts of water at 100 ℃, uniformly mixing with 20 parts of micron-sized active coconut shell carbon powder, 4 parts of sodium dodecyl sulfate and 4 parts of polyvinyl acetate emulsion, soaking the new antibacterial non-woven fabric prepared in the step S2 in the solution, reacting for 0.5h, standing and airing to obtain a smell removal layer 4, wherein the bath ratio is 1:5;
s7: and (3) taking the bacteriostatic non-woven fabric prepared in the step (S2) as the surface layer 1, pressing the two sides of the basement membrane 6 to form water-repellent cloth 7, cutting the surface layer 1, the blood decomposition and absorption layer 2, the antibacterial layer 3 and the odor removal layer 4, bonding the cut surfaces together from top to bottom, reversely wrapping the absorber 5, and bonding the cut surfaces together with the basement membrane 6 to obtain the suspended side wall sanitary towel capable of rapidly absorbing blood.
The absorbent is a mixture of fluff pulp and a high-absorbency resin (available from japan sumitomo pharmaceuticals) and the base film is a breathable cast film (available from carlford health products, inc., of junzhou).
The ecological skin-healing agent is an aqueous solution of inulin and fructose, the ecological nutrient solution is an aqueous solution of inulin and alpha-glucan oligosaccharide, and the pH values of the ecological skin-healing agent and the ecological nutrient solution are 3.5.
The mass ratio of acetone to dimethylacetamide is 2:1.
top layer thickness is 1.5mm, blood decomposition absorbing layer thickness is 4.5mm, degerming layer thickness is 1.5mm, it is 1.6mm to remove the flavor layer thickness, absorber thickness is 1.5mm, basement membrane thickness is 0.5mm.
Example 2: s1: dissolving 4 parts of chitosan in 200 parts of acetic acid, uniformly mixing with 4 parts of 1-hydroxymethyl-5, 5-dimethylhydantoin under the condition of 100 ℃ and oil bath, carrying out condensation reflux for 24 hours, cooling to room temperature, carrying out reduced pressure distillation, slowly dripping into 150 parts of acetone solution, removing floccules, washing a product with acetone and ethanol, repeating for 3 times, drying, dissolving in 50 parts of acetic acid solution, adjusting the pH value of the solution to be 6, slowly adding 25 parts of sodium tripolyphosphate, and carrying out ultrasonic reaction for 8min to obtain chitosan microspheres;
s2: dissolving 3 parts of cellulose acetate in 25 parts of acetone at 60 ℃, washing with ethanol, standing for 12 hours, performing suction filtration, drying, dissolving in 25 parts of purified acetone solution at 55 ℃, adding 8 parts of triethylamine and 1 part of succinic anhydride, reacting for 24 hours at 65 ℃, washing with water, drying, dissolving in 15 parts of purified dimethylformamide under the condition of ice bath, adding 0.8 part of 1-ethyl- (3-dimethylaminopropyl) carbodiimide and 0.5 part of N-hydroxysuccinimide, reacting for 13 hours, uniformly mixing with 0.3 part of polypeptide dimethylformamide solution, reacting for 13 hours, adding 15 parts of ethanol, drying, dissolving in a mixed solution of acetone and dimethylacetamide to obtain modified cellulose acetate, mixing, drying, shearing, melting, cooling and bonding 75 parts of pure cotton fiber, 15 parts of modified cellulose acetate and 15 parts of chitosan microspheres to obtain bacteriostatic non-woven fabric;
s3: dissolving 55 parts of yeast cells in 70 parts of water, standing, filtering, centrifuging upper-layer liquid, adding 30 parts of acetone into the lower layer, reacting for 25min, centrifuging, repeating for 2 times, washing with water, adding 20 parts of a phosphoric acid solution of glutaraldehyde with the pH of 6,2%, reacting for 13h at 180 ℃, cooling to room temperature, discarding upper-layer liquid, washing the lower layer with water, and drying to obtain carbon residue; dissolving 5 parts of carbon residue in 40 parts of water, uniformly mixing with 20 parts of polyhexamethylene biguanide aqueous solution, reacting for 7 hours, centrifuging for 3-5min, washing for 3 times with water, and drying to obtain the slow-release polyhexamethylene biguanide;
s4: and (3) soaking the bacteriostatic non-woven fabric prepared in the step (S2) in a mixed solution of 1 part of quillaja extract, 3 parts of ecological nutrient solution, 2 parts of protease and 2 parts of PPG-26-butanol polyether-26, reacting for 1 hour, standing and airing to obtain a blood decomposition absorbing layer 2, wherein the bath ratio is 1:5;
s5: soaking the antibacterial non-woven fabric prepared in the step S2 in a mixed solution of 0.8 part of Caesalpinia spinosa Gum, 0.5 part of tree peony bark extract, 3 parts of ecological skin-healing agent and 0.0002 part of slow-release polyhexamethylene biguanide at 70 ℃, reacting for 1 hour, standing and airing to obtain an antibacterial layer 3, wherein the bath ratio is 1:5;
s6: dissolving 2 parts of polyvinyl alcohol in 50 parts of water at 100 ℃, uniformly mixing with 30 parts of micron-sized active coconut shell carbon powder, 5 parts of sodium dodecyl sulfate and 15 parts of polyvinyl acetate emulsion, then soaking the new antibacterial non-woven fabric prepared in the step S2 in the solution, reacting for 1 hour, standing and airing to obtain a smell removal layer 4, wherein the bath ratio is 1:5;
s7: and (2) taking the bacteriostatic non-woven fabric prepared in the step (S2) as a surface layer 1, pressing the two sides of a bottom film 6 to form water-repellent cloth 7, cutting the surface layer 1, the blood decomposition and absorption layer 2, the antibacterial layer 3 and the odor removal layer 4, bonding the cut surface layer, the blood decomposition and absorption layer, the antibacterial layer and the odor removal layer together from top to bottom, wrapping the absorber 5 in a reverse mode, and bonding the cut surface layer, the blood decomposition and absorption layer, the antibacterial layer and the odor removal layer together with the bottom film 6 to obtain the side-wall sanitary towel capable of rapidly absorbing blood and hanging.
The absorber was a mixture of fluff pulp and a high-absorbency resin (available from japan sumitomo pharmaceuticals) and the base film was a breathable cast film (available from wenofu sanitary products, ltd).
The ecological skin-healing agent is an aqueous solution of inulin and fructose, the ecological nutrient solution is an aqueous solution of inulin and alpha-glucan oligosaccharide, and the pH values of the ecological skin-healing agent and the ecological nutrient solution are 3.5.
The mass ratio of the acetone to the dimethylacetamide is 2:1.
top layer thickness is 1.5mm, blood decomposition absorbing layer thickness is 4.5mm, degerming layer thickness is 1.5mm, it is 1.6mm to remove the flavor layer thickness, absorber thickness is 1.5mm, basement membrane thickness is 0.5mm.
Example 3: dissolving 5 parts of chitosan in 300 parts of acetic acid, uniformly mixing with 5 parts of 1-hydroxymethyl-5, 5-dimethylhydantoin under the condition of 100 ℃ and oil bath, condensing and refluxing for 24 hours, cooling to room temperature, distilling under reduced pressure, slowly dripping into 200 parts of acetone solution, removing floccules, washing the product with acetone and ethanol, repeating for 3 times, drying, dissolving in 60 parts of acetic acid solution, adjusting the pH value of the solution to be 6, slowly adding 30 parts of sodium tripolyphosphate aqueous solution, and carrying out ultrasonic reaction for 10min to obtain chitosan microspheres;
s2: dissolving 5 parts of cellulose acetate in 30 parts of acetone at 60 ℃, washing with ethanol, standing for 12 hours, performing suction filtration, drying, dissolving in 30 parts of purified acetone solution at 60 ℃, adding 10 parts of triethylamine and 2 parts of succinic anhydride, reacting for 24 hours at 70 ℃, washing with water, drying, dissolving in 20 parts of purified dimethylformamide under the ice bath condition, adding 1 part of 1-ethyl- (3-dimethylaminopropyl) carbodiimide and 0.2 part of N-hydroxysuccinimide, reacting for 15 hours, uniformly mixing with 0.4 part of dimethylformamide solution of polypeptide, reacting for 15 hours, adding 20 parts of ethanol, drying, dissolving in a mixed solution of acetone and dimethylacetamide to obtain modified cellulose acetate, mixing, drying, dissolving 80 parts of pure cotton fiber, 20 parts of modified cellulose acetate and 20 parts of chitosan microspheres, drying, shearing, melting, cooling and bonding to obtain antibacterial non-woven fabric;
s3: dissolving 60 parts of yeast cells in 100 parts of water, standing, filtering, centrifuging upper-layer liquid, adding 40 parts of acetone into the lower layer, reacting for 30min, centrifuging, repeating for 2-3 times, washing with water, adding 30 parts of phosphoric acid solution of glutaraldehyde with the pH of 6,2%, reacting for 14h at 180 ℃, cooling to room temperature, discarding upper-layer liquid, washing the lower layer with water, and drying to obtain carbon residue; dissolving 10 parts of carbon residue in 20 parts of water, uniformly mixing with 25 parts of polyhexamethylene biguanide aqueous solution, reacting for 8 hours, centrifuging for 5min, washing for 3 times with water, and drying to obtain the slow-release polyhexamethylene biguanide;
s4: and (3) soaking the antibacterial non-woven fabric prepared in the step (S2) in a mixed solution of 2 parts of quillaja saponaria tree extract, 5 parts of ecological nutrient solution, 3 parts of protease and 3 parts of PPG-26-butanol polyether-26, reacting for 0.5h, standing and airing to obtain a blood decomposition absorption layer 2, wherein the bath ratio is 1:5;
s5: soaking the new antibacterial non-woven fabric prepared in the step S2 in a mixed solution of 1 part of Caesalpinia spinosa Gum, 2 parts of tree peony bark extract, 5 parts of ecological skin-healing agent and 0.0002 part of slow-release polyhexamethylene biguanide at 45 ℃, reacting for 0.5h, standing and airing to obtain an antibacterial layer 3, wherein the bath ratio is 1:5;
s6: dissolving 3 parts of polyvinyl alcohol in 60 parts of water at 100 ℃, uniformly mixing with 40 parts of micron-sized active coconut shell carbon powder, 8 parts of sodium dodecyl sulfate and 25 parts of polyvinyl acetate emulsion, soaking the new antibacterial non-woven fabric prepared in the step S2 in the solution, reacting for 0.5h, standing and airing to obtain a smell removal layer 4, wherein the bath ratio is 1:5;
s7: and (3) taking the bacteriostatic non-woven fabric prepared in the step (S2) as the surface layer 1, pressing the two sides of the basement membrane 6 to form water-repellent cloth 7, cutting the surface layer 1, the blood decomposition and absorption layer 2, the antibacterial layer 3 and the odor removal layer 4, bonding the cut surfaces together from top to bottom, reversely wrapping the absorber 5, and bonding the cut surfaces together with the basement membrane 6 to obtain the suspended side wall sanitary towel capable of rapidly absorbing blood.
The absorber was a mixture of fluff pulp and a high-absorbency resin (available from japan sumitomo pharmaceuticals) and the base film was a breathable cast film (available from wenofu sanitary products, ltd).
The ecological skin resurrection agent is an aqueous solution of inulin and fructose, the ecological nutrient solution is an aqueous solution of inulin and alpha-glucan oligosaccharide, and the pH values of the ecological skin resurrection agent and the ecological nutrient solution are 3.5.
The mass ratio of acetone to dimethylacetamide is 2:1.
top layer thickness is 1.5mm, the blood decomposition absorption layer thickness is 4.5mm, degerming layer thickness is 1.5mm, it is 1.6mm to remove the flavor layer thickness, absorber thickness is 1.5mm, basement membrane thickness is 0.5mm.
Comparative example
Comparative example 1: in contrast to example 3, the odor elimination layer was not added and the procedure was the same as described herein.
Comparative example 2: in comparison with example 3, the preparation method is the same as that of the present document without adding chitosan microspheres.
Experimental data
Water absorption rate: completely soaking the sanitary towel in water, taking out after 1min, vertically standing for 90s, weighing the weight of the sample before and after soaking, and calculating the water absorption rate.
Odor removal rate: and (4) sealing, placing the sanitary towel sample in a formaldehyde environment, and reacting for 3 hours.
The diameter of the inhibition zone: and (3) cutting the sample, placing the cut sample in a sterile culture dish, inoculating bacteria in the sterile culture dish, culturing for 2 days in an incubator at 37 ℃, and calculating the diameter of a bacteriostatic circle.
Table 1 test results of examples 1 to 3, comparative examples 1 and 2
And (4) conclusion: examples 1-3 show that the sanitary towel prepared by the method has the advantages of high blood absorption speed, good odor removal effect and strong bacteriostatic activity.
Compared with the comparative example 1, the odor removal rate of formaldehyde is greatly reduced because no odor removal layer is added in the comparative example 1, which shows that the odor removal layer prepared by loading activated carbon powder on the surface of the bacteriostatic non-woven fabric can remove odor.
Compared with the comparative example 2, the diameters of the inhibition zones of escherichia coli and staphylococcus aureus in the comparative example 2 are reduced, which shows that the antibacterial activity of the sanitary towel can be enhanced by adding the chitosan microspheres into the antibacterial non-woven fabric.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a absorb blood fast, unsettled side wall sanitary towel which characterized in that: the sanitary towel is sequentially provided with a surface layer (1), a blood decomposition absorption layer (2), an antibacterial layer (3), a smell removal layer (4), an absorber (5) and a basement membrane (6) from top to bottom; two sides of the basement membrane (6) are pressed to form a water repellent cloth (7); the surface layer (1) is an antibacterial non-woven fabric;
the preparation method comprises the following steps:
s1: dissolving cellulose acetate in acetone at 60 ℃, washing with ethanol, standing for 12h, performing suction filtration, drying, dissolving in a purified acetone solution at 50-60 ℃, adding triethylamine and succinic anhydride, reacting at 60-70 ℃ for 24h, washing with water, drying, dissolving in purified dimethylformamide under the condition of ice bath, adding 1-ethyl- (3-dimethylaminopropyl) carbodiimide and N-hydroxysuccinimide, reacting for 12-15h, uniformly mixing with a polypeptide dimethylformamide solution, reacting for 12-15h, adding ethanol, drying, dissolving in a mixed solution of acetone and dimethylacetamide to obtain modified cellulose acetate, and mixing, drying, shearing, melting, cooling and bonding pure cotton fibers, modified cellulose acetate and chitosan microspheres to obtain the antibacterial non-woven fabric;
s2: soaking the bacteriostatic non-woven fabric prepared in the step S1 in a mixed solution of a quillaja saponaria extract, an ecological nutrient solution, protease and PPG-26-butanol polyether-26 to react for 0.5 to 2 hours, standing and airing to obtain a blood decomposition absorption layer (2);
s3: soaking the antibacterial non-woven fabric prepared in the step S1 in a mixed solution of Caesalpinia spinosa Gum, a tree peony bark extract, an ecological skin-healing agent and slow-release polyhexamethylene biguanide, reacting for 0.5-2h, standing and airing to obtain an antibacterial layer (3);
s4: dissolving polyvinyl alcohol in water at 100 ℃, uniformly mixing the polyvinyl alcohol with micron-sized active coconut shell carbon powder, sodium dodecyl sulfate and polyvinyl acetate emulsion, soaking the new antibacterial non-woven fabric prepared in the step S1 in the solution, reacting for 0.5-2h, standing and airing to obtain a smell removal layer (4);
s5: taking the bacteriostatic non-woven fabric prepared in the step S1 as a surface layer (1), pressing the two sides of a bottom membrane (6) to form water-repellent cloth (7), cutting the surface layer (1), the blood decomposition absorption layer (2), the antibacterial layer (3) and the odor removal layer (4), bonding the surface layer (1), the blood decomposition absorption layer (2), the antibacterial layer (3) and the odor removal layer together from top to bottom, wrapping an absorber (5) in a reverse mode, and bonding the absorber and the bottom membrane (6) together to obtain the side-wall sanitary towel capable of rapidly absorbing blood and hanging;
the ecological skin-healing agent is an aqueous solution of inulin and fructose, the ecological nutrient solution is an aqueous solution of inulin and alpha-glucan oligosaccharide, and the pH values of the ecological skin-healing agent and the ecological nutrient solution are 3.5-8;
the preparation method of the slow-release polyhexamethylene biguanide comprises the following steps: dissolving yeast cells in water, standing, filtering, centrifuging upper layer liquid, adding acetone into lower layer, reacting for 20-30min, centrifuging, repeating for 2-3 times, washing with water, adding phosphoric acid solution of glutaraldehyde, reacting at 180 deg.C for 12-14h, cooling to room temperature, discarding upper layer liquid, washing lower layer with water, and drying to obtain carbon residue; dissolving carbon residue in water, mixing with polyhexamethylene biguanide water solution, reacting for 5-8h, centrifuging for 3-5min, washing with water for 3-5 times, and drying;
the preparation method of the chitosan microsphere comprises the following steps: dissolving chitosan in acetic acid, mixing with 1-hydroxymethyl-5, 5-dimethylhydantoin at 100 deg.C under oil bath condition, condensing and refluxing for 24 hr, cooling to room temperature, distilling under reduced pressure, slowly adding dropwise into acetone solution, removing floccule, washing product with acetone and ethanol, repeating for 3-5 times, drying, dissolving in acetic acid solution, adjusting pH to 6, slowly adding sodium tripolyphosphate aqueous solution, and performing ultrasonic reaction for 5-10min to obtain chitosan microsphere.
2. The rapid blood absorption, hanging side wall sanitary napkin of claim 1 wherein: the blood decomposition absorption layer (2) is an antibacterial non-woven fabric impregnated with a mixed solution of a quillaja extract, and the mixed solution of the quillaja extract comprises the following raw materials in parts by weight: 0.1-2 parts of soapbark tree extract, 1-5 parts of ecological nutrient solution, 0.1-3 parts of protease and 260.5-3 parts of PPG-26-butanol polyether.
3. The rapid blood absorption, hanging side wall sanitary napkin of claim 1 wherein: the antibacterial layer (3) is an antibacterial non-woven fabric impregnated with a moutan bark extract mixed solution, and the moutan bark extract mixed solution comprises the following raw materials in parts by weight: 0.5-1 part of Caesalpinia spinosa gum, 0.1-2 parts of tree peony bark extract, 0.5-5 parts of ecological skin-healing agent and 0.0001-0.002 part of slow-release polyhexamethylene biguanide.
4. The rapid blood absorption, hanging side wall sanitary napkin of claim 1 wherein: the odor removal layer (4) is an antibacterial non-woven fabric impregnated with a micron-sized active coconut shell carbon powder mixed solution, and the micron-sized active coconut shell carbon powder mixed solution comprises the following raw materials in parts by weight: 0.8-3 parts of polyvinyl alcohol, 40-60 parts of water, 20-40 parts of micron-sized active coconut shell carbon powder, 4-8 parts of sodium dodecyl sulfate and 4-25 parts of polyvinyl acetate emulsion.
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| CN116492145B (en) * | 2023-04-28 | 2023-09-26 | 江苏宝姿实业有限公司 | Antibacterial and deodorizing sanitary towel and preparation process thereof |
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