Absorption product and preparation method thereof

Abstract

The invention discloses an absorption product and a preparation method of the absorption product. The absorption product comprises a liquid-permeable surface layer, a second liquid-permeable layer, a liquid-tight bottom layer and an absorption body clamped between the second liquid-permeable layer and the liquid-tight bottom layer, wherein at least one of the liquid-permeable surface layer and the liquid-permeable second layer comprises a cranberry compound, and at least one of the liquid-permeable surface layer and the liquid-permeable second layer comprises a probiotic compound. By combining the cranberry compound and the probiotic compound, the absorption product can have good antibacterial and anti-inflammatory performance and micro-ecological regulation performance, so that double-effect synergy is achieved, micro-ecological balance is well maintained, the reliability of the absorption product is improved, and then the actual use requirement of a user is met.

Description

Technical Field

[0001] The present application relates to the technical field of sanitary products, in particular to absorbent products and methods for preparing absorbent products. Background Art

[0002] With the development of the times, consumers' demand for absorbent products continues to increase, requiring absorbent products to be functional.

[0003] In related technologies, absorbent products are mainly used for absorption functions, but they also need to be kept clean and hygienic during use. Therefore, antibacterial materials are added to some absorbent products to achieve antibacterial functions; probiotics are added to some absorbent products to promote the growth of probiotics to balance the private microenvironment.

[0004] However, most of the existing functional absorbent products only contain a single ingredient, which cannot achieve dual-effect synergy and cannot meet the actual usage needs of users. Summary of the Invention

[0005] The main technical problem solved by the present application is to provide absorbent products and methods for preparing absorbent products, which can solve the problem that related technologies cannot prepare safe and reliable antibacterial absorbent products.

[0006] In order to solve the above-mentioned technical problems, the first technical solution adopted in the present application is to provide an absorbent product, comprising a liquid-permeable surface layer, a liquid-permeable second layer, a liquid-impermeable bottom layer, and an absorbent body sandwiched between the liquid-permeable second layer and the liquid-impermeable bottom layer; wherein, at least one of the liquid-permeable surface layer and the liquid-permeable second layer includes a cranberry complex, and at least one includes a probiotic complex.

[0007] Among them, the cranberry complex includes cranberry freeze-dried powder and nanoliposomes; wherein, the cranberry freeze-dried powder is embedded in the nanoliposomes; the probiotic complex includes composite bacterial powder, freeze-dried protective agent and sodium alginate-chitosan microspheres; wherein, the composite bacterial powder and freeze-dried protective agent are embedded in the sodium alginate-chitosan microspheres.

[0008] Among them, the particle size of cranberry freeze-dried powder is less than or equal to 50 microns; the composite bacterial powder includes Lactobacillus plantarum, Lactobacillus rhamnosus, and Lactobacillus crispatus; the freeze-drying protective agent includes trehalose and skim milk powder; the diameter of sodium alginate-chitosan microspheres is greater than or equal to 200 microns and less than or equal to 300 microns.

[0009] The liquid-permeable surface layer includes a cranberry compound and a probiotic compound; and / or the liquid-permeable second layer includes a cranberry compound and a probiotic compound.

[0010] The liquid-permeable surface layer comprises a cranberry complex, and the liquid-permeable second layer comprises a probiotic complex; or the liquid-permeable surface layer comprises a probiotic complex, and the liquid-permeable second layer comprises a cranberry complex.

[0011] The liquid-permeable surface layer includes a cranberry complex and a probiotic complex, and the liquid-permeable second layer includes a cranberry complex or a probiotic complex; or the liquid-permeable surface layer includes a cranberry complex or a probiotic complex, and the liquid-permeable second layer includes a cranberry complex and a probiotic complex.

[0012] The content of the cranberry complex and the probiotic complex in the liquid-permeable surface layer is 2% to 13% of the mass of the liquid-permeable surface layer; and / or the content of the cranberry complex and the probiotic complex in the second liquid-permeable layer is 2% to 13% of the mass of the second liquid-permeable layer.

[0013] Wherein, water-repellent layers are provided on both sides of the liquid-permeable surface layer extending in the length direction; wherein, the cranberry complex and / or the probiotic complex can be added to at least one of the liquid-permeable surface layer, the liquid-permeable second layer and the water-repellent layer; wherein, the cranberry complex and / or the probiotic complex can be added to the absorbent body.

[0014] In order to solve the above-mentioned technical problems, the second technical solution adopted in this application is to provide a method for preparing an absorbent product, including: obtaining a cranberry complex and a probiotic complex; preparing a liquid-permeable surface layer, a liquid-permeable second layer, an absorbent body and a liquid-impermeable bottom layer; spraying the cranberry complex and the probiotic complex on the liquid-permeable surface layer and / or the liquid-permeable second layer; and respectively compounding the liquid-permeable surface layer, the liquid-permeable second layer and the liquid-impermeable bottom layer on both sides of the absorbent body to obtain an absorbent product.

[0015] The steps of obtaining the cranberry complex and the probiotic complex include: obtaining a cranberry extract based on cranberry concentrated juice; wherein the proanthocyanidin content in the cranberry concentrated juice is 20% to 30%; spray-drying the cranberry extract to prepare a cranberry freeze-dried powder; wherein the particle size of the cranberry freeze-dried powder is less than or equal to 50 microns; preparing a cranberry nanoliposome suspension based on the cranberry freeze-dried powder to obtain a cranberry complex; wherein the concentration of the cranberry nanoliposome suspension is 50% to 90%; mixing Lactobacillus plantarum, Lactobacillus rhamnosus, and Lactobacillus crispatus according to a first preset ratio; , obtaining a composite bacterial powder; mixing trehalose and skim milk powder according to a second preset ratio to obtain a freeze-drying protective agent; mixing the composite bacterial powder and the freeze-drying protective agent and then freeze-drying to obtain active bacterial powder; injecting the active bacterial powder into sodium alginate-chitosan microspheres to obtain a probiotic complex; the step of spraying the cranberry complex and the probiotic complex on the liquid-permeable surface layer and / or the liquid-permeable second layer comprises: spraying a cranberry nanoliposome suspension and the probiotic complex on the liquid-permeable surface layer and / or the liquid-permeable second layer; and drying the liquid-permeable surface layer and / or the liquid-permeable second layer sprayed with the cranberry nanoliposome suspension and the probiotic complex.

[0016] The present application has the following beneficial effects: Unlike the prior art, the present application provides absorbent articles and methods for preparing absorbent articles. By including a cranberry complex in at least one of the liquid-permeable surface layer and the liquid-permeable second layer of the absorbent article, and at least one of the probiotic complex in at least one of the liquid-permeable surface layer and the liquid-permeable second layer, the cranberry complex and the probiotic complex are both non-allergenic and highly biosafe, thereby preventing irritation or allergic damage to the human body and improving the safety of the absorbent article. Furthermore, since the cranberry complex inhibits the growth of harmful bacteria, while the probiotic complex promotes the growth of beneficial bacteria, the combination of the cranberry complex and the probiotic complex enables the absorbent article to possess excellent antibacterial and anti-inflammatory properties, as well as microecological regulation properties, achieving a dual-effect synergy and thereby better maintaining microecological balance, thereby improving the reliability of the absorbent article and meeting the actual needs of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 This is a schematic structural diagram of an embodiment of the absorbent product of the present application;

[0019] Figure 2 This is the principle of encapsulation and release of the probiotic complex in this application;

[0020] Figure 3 It is a schematic flow chart of one embodiment of the method for preparing the absorbent product of the present application. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0022] The terms used in the examples of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms "a," "the," and "the" used in the examples of this application and the appended claims are also intended to include plural forms. Unless otherwise clearly indicated above, "a plurality" generally includes at least two, but does not exclude the inclusion of at least one.

[0023] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0024] It should be understood that the terms "comprises," "comprising," or any other variations used herein are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0025] At present, absorbent products are mainly used for absorption functions, but they also need to be kept clean and hygienic during use. Some absorbent products will add antibacterial materials to prepare antibacterial functional products.

[0026] In the related art, in order to prepare antibacterial absorbent products, the following three schemes are generally adopted: (1) adding silver ion antibacterial agents or antibiotics; (2) adding a single probiotic; (3) adding a single plant ingredient.

[0027] However, in the first approach, silver ion antimicrobial agents or antibiotics may disrupt the human microecological balance and trigger allergies, resulting in lower safety. In the second approach, the activity of a single probiotic is easily affected by environmental humidity and temperature, making it difficult to maintain activity during the storage period of the absorbent product. In the third approach, a single botanical ingredient can only provide a single antibacterial function but cannot regulate the human microecological balance, resulting in limited actual antibacterial effect.

[0028] Based on the above situation, the present application provides absorbent products and methods for preparing absorbent products, which can solve the problem that related technologies cannot prepare safe and reliable antibacterial absorbent products.

[0029] The absorbent product disclosed in the present application can be a sanitary napkin, a nursing napkin, a nursing pad or other female products, or can be a baby diaper or an adult diaper.

[0030] See also Figure 1 , Figure 1 It is a structural schematic diagram of an embodiment of the absorbent product of the present application.

[0031] In this embodiment, the absorbent article 100 includes a liquid-permeable top sheet 10, a liquid-permeable second sheet 20, a liquid-impermeable bottom sheet 31, and an absorbent body 30 interposed between the liquid-permeable second sheet 20 and the liquid-impermeable bottom sheet 31. At least one of the liquid-permeable top sheet 10 and the liquid-permeable second sheet 20 includes a cranberry complex, and at least one includes a probiotic complex.

[0032] The cranberry complex includes cranberry extract, the active ingredients of which have antibacterial and anti-inflammatory effects. Specifically, cranberry extract includes proanthocyanidins, which are the main active substances that inhibit uropathogenic Escherichia coli and have the effect of preventing urinary tract infections.

[0033] Among them, the probiotic complex includes a variety of probiotic powders, which can promote the growth of beneficial bacteria and help maintain the microecological balance of the human body surface or human organs (such as the vagina) to prevent infection.

[0034] It can be understood that since both the cranberry complex and the probiotic complex are non-allergenic and have high biosafety, they can avoid irritation or allergic damage to the human body, thereby improving the safety of the absorbent article 100.

[0035] It can be understood that since the cranberry complex has the effect of inhibiting the growth of harmful bacteria, and the probiotic complex has the effect of promoting the growth of beneficial bacteria, by combining the cranberry complex and the probiotic complex, the absorbent product 100 can have good antibacterial and anti-inflammatory properties and microecological regulation properties, so as to achieve dual-effect synergy, and then better maintain the microecological balance, thereby improving the reliability of the absorbent product 100 and meeting the actual usage needs of users.

[0036] In some embodiments, the cranberry complex comprises lyophilized cranberry powder and nanoliposomes, wherein the lyophilized cranberry powder is encapsulated in the nanoliposomes.

[0037] In some embodiments, the particle size of the freeze-dried cranberry powder is less than or equal to 50 microns.

[0038] It can be understood that by controlling the particle size of the freeze-dried cranberry powder, it can be better embedded.

[0039] In some embodiments, the freeze-dried cranberry powder is prepared by spray-drying a cranberry extract, wherein the cranberry extract is extracted from cranberry concentrated juice, and the proanthocyanidin content in the cranberry concentrated juice is 20% to 30%.

[0040] In some specific embodiments, the proanthocyanidin content in the cranberry concentrated juice can be 20%, 25% or 30%.

[0041] In some specific embodiments, the antioxidant stability of proanthocyanidins in the freeze-dried cranberry powder embedded in nanoliposomes is increased by 40%.

[0042] It can be understood that the cranberry freeze-dried powder can be embedded in nanoliposomes, which can effectively improve the antioxidant stability of the active substances in the cranberry freeze-dried powder, achieve long-term stability of the active ingredients, and facilitate stable storage, so that the absorbent product 100 has long-term good antibacterial activity, thereby achieving long-term antibacterial effect.

[0043] In some embodiments, the probiotic complex comprises a composite bacterial powder, a lyophilization protectant, and sodium alginate-chitosan microspheres, wherein the composite bacterial powder and the lyophilization protectant are encapsulated in the sodium alginate-chitosan microspheres.

[0044] In some specific embodiments, the lyoprotectant comprises trehalose and skim milk powder, and the ratio of trehalose to skim milk powder is 3:2.

[0045] In some specific embodiments, after freeze-drying, the number of viable bacteria in the composite bacterial powder is ≥1×10^10 CFU / g.

[0046] CFUs (Colony-Forming Units) refer to the total number of bacteria, molds, yeasts, and other microorganisms in a unit volume. When counting viable bacteria in culture, the colonies formed by a single cell or a cluster of cells growing and multiplying on a solid culture medium are called CFUs, which are used to express the number of viable bacteria.

[0047] In some specific embodiments, after the composite bacterial powder is protected by a freeze-drying protective agent, the survival rate of multiple probiotics is increased to 90%.

[0048] It can be understood that protecting the composite bacterial powder with a freeze-drying protective agent can effectively improve the survival rate of various probiotics in the composite bacterial powder.

[0049] In some embodiments, the composite bacterial powder includes Lactobacillus plantarum, Lactobacillus rhamnosus, and Lactobacillus crispatus, wherein the ratio of Lactobacillus plantarum, Lactobacillus rhamnosus, and Lactobacillus crispatus in the composite bacterial powder is 3:3:2.

[0050] Among them, Lactobacillus plantarum can inhibit the growth and reproduction of harmful microorganisms, maintaining the microecological balance on the human body surface and within human organs. Lactobacillus rhamnosus can effectively promote the growth of Bifidobacterium and Lactobacillus acidophilus, inhibiting the growth of harmful bacteria. For example, Lactobacillus acidophilus can effectively inhibit the reproduction of Candida albicans in the vagina. Lactobacillus crispatus is the first line of defense in the female urogenital tract. In the healthy vaginal flora, Lactobacillus crispatus is the most common beneficial bacteria. The large amount of lactic acid it produces is a powerful immunomodulator and can be used as a prebiotic and probiotic to restore the vaginal flora.

[0051] It can be understood that by combining Lactobacillus plantarum, Lactobacillus rhamnosus, and Lactobacillus crispatus into probiotic powder, the growth of beneficial bacteria can be effectively promoted, thereby maintaining the balance of bacterial state, avoiding the destruction of the microecological environment on the human body surface or in human organs, and then having a positive impact on health.

[0052] In some embodiments, inulin is added to the composite bacterial powder before the sodium alginate-chitosan microspheres are injected, wherein the ratio of the composite bacterial powder to the inulin is 10:1.

[0053] Among them, inulin is a natural chrysanthemum extract that can help inhibit the growth of harmful bacteria and prevent the production of harmful substances. It can be understood that by adding inulin, the antibacterial effect of the probiotic complex can be further enhanced.

[0054] In some embodiments, the diameter of the sodium alginate-chitosan microspheres is greater than or equal to 200 microns and less than or equal to 300 microns.

[0055] The composite bacterial powder and lyophilization protective agent are injected into sodium alginate-chitosan microspheres to form probiotic-encapsulated microcapsules, thereby obtaining a probiotic complex. The probiotic-encapsulated microcapsules are a sustained-release material that allows for a more gradual release of the probiotics, thereby enabling the absorbent article 100 to maintain a long-term, effective microecological regulation performance.

[0056] Specifically, see Figure 2 , Figure 2 This is the principle of encapsulation and release of the probiotic complex in this application. In this embodiment, after the probiotic complex is sprayed onto the liquid-permeable surface layer 10 and / or the liquid-permeable second layer 20 of the absorbent article 100, the probiotic-embedded microcapsules 40 adhere to the non-woven fabric fibers 50 of the liquid-permeable surface layer 10 and / or the liquid-permeable second layer 20. During use, friction between the human body and the absorbent article 100 creates scratches that damage the probiotic-embedded microcapsules 40, thereby releasing the probiotics 42 embedded in the sodium alginate-chitosan microspheres 41, thereby exerting an antibacterial effect. Furthermore, the humid environment and heat generated during use can also damage the probiotic-embedded microcapsules 40, thereby gradually releasing the probiotics 42.

[0057] It can be understood that the microcapsule encapsulation technology can solve the problem of long-term survival of the bacteria and facilitate the long-term preservation of the bacteria, so that the active ingredients in the probiotic complex can be long-lasting and stable, and have good long-term microecological regulation performance, thereby further improving the reliability of the absorbent product 100.

[0058] In this embodiment, at least one of the liquid-permeable surface layer 10 and the liquid-permeable second layer 20 includes a cranberry complex, and at least one includes a probiotic complex, which means that the cranberry complex and the probiotic complex can be arranged in the same layer structure at the same time, or can be arranged in different layer structures. As long as the absorbent product 100 includes the cranberry complex and the probiotic complex, they can exert their effects at the same time and enhance the antibacterial synergy.

[0059] In some embodiments, only the liquid-permeable top layer 10 includes the cranberry complex and the probiotic complex. In other embodiments, only the liquid-permeable second layer 20 includes the cranberry complex and the probiotic complex. In still other embodiments, the liquid-permeable top layer 10 includes the cranberry complex and the probiotic complex, and the liquid-permeable second layer 20 includes the cranberry complex and the probiotic complex.

[0060] In some embodiments, the content of the cranberry complex and the probiotic complex in the liquid-permeable surface layer 10 is 2% to 13% by weight of the liquid-permeable surface layer 10. In other embodiments, the content of the cranberry complex and the probiotic complex in the liquid-permeable second layer 20 is 2% to 13% by weight of the liquid-permeable second layer 20.

[0061] It can be understood that by controlling the contents of the cranberry complex and the probiotic complex, the antibacterial effect of the cranberry complex and the regulating effect of the probiotic complex can be enhanced.

[0062] In some embodiments, the liquid-permeable topsheet 10 comprises a cranberry complex and the liquid-permeable second sheet 20 comprises a probiotic complex. In still other embodiments, the liquid-permeable topsheet 10 comprises a probiotic complex and the liquid-permeable second sheet 20 comprises a cranberry complex.

[0063] In some embodiments, the liquid-permeable top layer 10 includes a cranberry complex and a probiotic complex, and the liquid-permeable second layer 20 includes a cranberry complex or a probiotic complex. In still other embodiments, the liquid-permeable top layer 10 includes a cranberry complex or a probiotic complex, and the liquid-permeable second layer 20 includes a cranberry complex and a probiotic complex.

[0064] Continue reading Figure 1 In this embodiment, a water-repellent layer 11 is provided on both sides of the liquid-permeable surface layer 10 extending in the longitudinal direction. The cranberry complex and / or probiotic complex may be added to at least one of the liquid-permeable surface layer 10, the liquid-permeable second layer 20, and the water-repellent layer 11.

[0065] In some embodiments, the cranberry complex and / or probiotic complex is added to the liquid-permeable top layer 10, the liquid-permeable second layer 20, and the water-repellent layer 11. In other embodiments, only the liquid-permeable top layer 10 and the liquid-permeable second layer 20 are added with the cranberry complex and / or probiotic complex. In still other embodiments, only the liquid-permeable top layer 10 and the water-repellent layer 11 are added with the cranberry complex and / or probiotic complex. In still other embodiments, only the liquid-permeable second layer 20 and the water-repellent layer 11 are added with the cranberry complex and / or probiotic complex. In still other embodiments, only one of the liquid-permeable top layer 10, the liquid-permeable second layer 20, and the water-repellent layer 11 is added with the cranberry complex and / or probiotic complex.

[0066] In some embodiments, a cranberry complex and / or a probiotic complex can be added to the absorbent body 30. In some specific embodiments, a cranberry complex or a probiotic complex is added to the absorbent body 30. In other specific embodiments, a cranberry complex and a probiotic complex are added to the absorbent body 30.

[0067] In some embodiments, the material of the liquid-permeable surface layer 10 is primarily composed of chemical fibers and natural fibers. The chemical fibers are produced through a hot-air non-woven process to form a chemical fiber non-woven liquid-permeable layer, while the natural fibers, such as cotton fibers, silk fibers, linen fibers, and bamboo fibers, are produced through a spunlace non-woven process to form a natural fiber liquid-permeable surface layer.

[0068] In some embodiments, the liquid-permeable second layer 20 is primarily composed of chemical fibers and natural fibers. The chemical fibers are produced through a hot-air non-woven process to form a liquid-permeable non-woven fabric layer, while the natural fibers, such as wood fibers and bamboo fibers, are produced through a dry-laid papermaking process to form a liquid-permeable surface layer of dust-free paper.

[0069] In some embodiments, the liquid-impermeable bottom layer 31 comprises a PE (Polyethylene) breathable film. In some specific embodiments, the air permeability of the liquid-impermeable bottom layer 31 is ≥ 800 cm 3 / (cm 2 ·s).

[0070] Unlike related art, this embodiment comprises a cranberry compound in at least one of the liquid-permeable surface layer 10 and the liquid-permeable second layer 20 of the absorbent article 100, and a probiotic compound in at least one of the two. Since both the cranberry compound and the probiotic compound are non-allergenic and highly biosafe, they can avoid irritation or allergic reactions to the human body, thereby improving the safety of the absorbent article. Furthermore, since the cranberry compound inhibits the growth of harmful bacteria, while the probiotic compound promotes the growth of beneficial bacteria, the combination of the cranberry compound and the probiotic compound enables the absorbent article 100 to possess excellent antibacterial and anti-inflammatory properties, as well as microecological regulation, achieving a dual-effect synergy that effectively maintains microecological balance, thereby improving the reliability of the absorbent article 100 and meeting the actual needs of users.

[0071] Correspondingly, the present application provides a method for preparing an absorbent product.

[0072] See also Figure 3 , Figure 3 1 is a flow chart of an embodiment of a method for preparing an absorbent product of the present application. In this embodiment, the preparation method comprises:

[0073] S11: Obtain cranberry complex and probiotic complex.

[0074] In this embodiment, a cranberry extract is first obtained from cranberry concentrated juice. The proanthocyanidin content of the cranberry concentrated juice is 20% to 30%. The cranberry extract is then spray-dried to produce a cranberry freeze-dried powder. Finally, a cranberry nanoliposome suspension is prepared from the freeze-dried cranberry powder to produce a cranberry complex. The concentration of the cranberry nanoliposome suspension is 50% to 90%.

[0075] In some embodiments, the proanthocyanidin content in the cranberry concentrated juice may be 20%, 25%, or 30%, etc.

[0076] In some embodiments, the particle size of the freeze-dried cranberry powder is less than or equal to 50 microns.

[0077] In some embodiments, the concentration of the cranberry nanoliposome suspension can be 50%, 60%, 70%, 80% or 90%.

[0078] In this embodiment, Lactobacillus plantarum, Lactobacillus rhamnosus, and Lactobacillus crispatus are mixed in a first predetermined ratio to produce a composite bacterial powder. Trehalose and skim milk powder are then mixed in a second predetermined ratio to produce a lyoprotectant. The composite bacterial powder and lyoprotectant are then mixed and freeze-dried to produce active bacterial powder. The active bacterial powder is then injected into sodium alginate-chitosan microspheres to produce a probiotic complex.

[0079] In some implementations, the first preset ratio is 3:3:2, and the second preset ratio is 3:2.

[0080] In some embodiments, the diameter of the sodium alginate-chitosan microspheres is greater than or equal to 200 microns and less than or equal to 300 microns.

[0081] In some embodiments, inulin is further added to the composite bacterial powder. In some specific embodiments, the ratio of the composite bacterial powder to inulin is 10:1.

[0082] In some embodiments, after freeze-drying, the number of viable bacteria in the composite bacterial powder is ≥1×10^10 CFU / g.

[0083] S12: Prepare a liquid-permeable top layer, a liquid-permeable second layer, an absorbent body and a liquid-impermeable bottom layer.

[0084] In this embodiment, the first liquid-permeable layer of the liquid-permeable surface layer is prepared by hot air nonwoven process and spunlace nonwoven process, and the second liquid-permeable layer of the liquid-permeable surface layer is prepared by hot air nonwoven process and dry papermaking process.

[0085] S13: spraying the cranberry complex and the probiotic complex on the liquid-permeable top layer and / or the liquid-permeable second layer.

[0086] In this embodiment, the cranberry nanoliposome suspension and the probiotic complex are sprayed on the liquid-permeable surface layer and / or the liquid-permeable second layer.

[0087] The cranberry extract needs to be dissolved in a biological solvent to form a cranberry nanoliposome suspension for spraying. The probiotic complex is in powder form and can be sprayed directly.

[0088] In some embodiments, the cranberry compound and the probiotic compound are sprayed only on the liquid-permeable surface layer, wherein the content of the cranberry compound and the probiotic compound in the liquid-permeable surface layer is 2% to 13% of the mass of the liquid-permeable surface layer.

[0089] In other embodiments, the cranberry compound and the probiotic compound are sprayed only on the second liquid-permeable layer, wherein the content of the cranberry compound and the probiotic compound in the second liquid-permeable layer is 2% to 13% of the mass of the second liquid-permeable layer.

[0090] In some further embodiments, the cranberry complex and the probiotic complex are sprayed on the liquid-permeable top layer and the liquid-permeable second layer at the same time.

[0091] In other embodiments, the cranberry complex (or probiotic complex) is sprayed on the liquid-permeable top layer, and the probiotic complex (or cranberry complex) is sprayed on the liquid-permeable second layer.

[0092] In other embodiments, the probiotic compound can be sprayed onto a bamboo charcoal fiber substrate to form a slow-release chip layer, which is then laminated onto the upper layer of the absorbent body.

[0093] In other practical ways, the cranberry complex can also be added by dipping, that is, dipping the liquid-permeable surface layer or the liquid-permeable second layer of non-woven fabric into the cranberry nanoliposome suspension.

[0094] In this embodiment, the liquid-permeable surface layer and / or the liquid-permeable second layer sprayed with the cranberry nanoliposome suspension and the probiotic complex are dried.

[0095] The drying temperature is controlled to be 60° C., and the moisture rejection rate after drying is controlled to be 1% to 5%.

[0096] S14: Compounding a liquid-permeable top layer, a liquid-permeable second layer and a liquid-impermeable bottom layer on both side surfaces of the absorbent body to obtain an absorbent product.

[0097] In some embodiments, the liquid-permeable top layer, the liquid-permeable second layer, the absorbent body, and the liquid-impermeable bottom layer can be combined by bonding, heat pressing, or ultrasonic pressing.

[0098] Unlike related art, the present invention comprises a cranberry compound in at least one of the liquid-permeable top layer and the liquid-permeable second layer of the absorbent article, and at least one of the probiotic compound. Since both the cranberry compound and the probiotic compound are non-allergenic and highly biosafe, they can avoid irritation or allergic reactions to the human body, thereby improving the safety of the absorbent article. Furthermore, since the cranberry compound inhibits the growth of harmful bacteria, while the probiotic compound promotes the growth of beneficial bacteria, the combination of the cranberry compound and the probiotic compound can impart excellent antibacterial and anti-inflammatory properties to the absorbent article, as well as microecological regulation properties, achieving a dual-effect synergy that effectively maintains microecological balance, thereby improving the reliability of the absorbent article and meeting the actual needs of users.

[0099] To facilitate understanding of the embodiments of the present application, the present application provides the following non-limiting embodiments to further illustrate the present application in detail.

[0100] Example 1

[0101] A cranberry complex is obtained from cranberry concentrate. The cranberry concentrate has a proanthocyanidin content of 25%. The cranberry complex is then spray-dried to produce a cranberry freeze-dried powder. The particle size of the cranberry freeze-dried powder is less than or equal to 50 microns. A cranberry nanoliposome suspension is then prepared from the cranberry freeze-dried powder to produce the cranberry complex. The concentration of the cranberry nanoliposome suspension is 80%. Lactobacillus plantarum CGMCC1.557, Lactobacillus rhamnosus ATCC53103, and Lactobacillus crispatus ATCC33820 are mixed in a first predetermined ratio of 3:3:2. Trehalose and skim milk powder are mixed in a second predetermined ratio of 3:2 to produce a lyoprotectant. The mixed bacterial powder is then centrifuged, mixed with the lyoprotectant, and lyophilized to produce an active bacterial powder. The viable bacterial count in the active bacterial powder is ≥1×10^10 CFU / g. Then, active bacterial powder is injected into sodium alginate-chitosan microspheres to obtain a probiotic complex. Prepare a liquid-permeable surface layer, a liquid-permeable second layer, an absorbent body, and a liquid-impermeable bottom layer. The air permeability of the liquid-impermeable bottom layer is ≥800cm 3 / (cm 2 s). The cranberry complex was sprayed on the liquid-permeable top layer, and the probiotic complex was sprayed on the liquid-permeable second layer. The liquid-permeable top layer sprayed with the cranberry nanoliposome suspension and the liquid-permeable second layer sprayed with the probiotic complex were dried. The drying temperature was controlled to be 60°C, and the moisture repellency after drying was controlled to be 1% to 5%. The liquid-permeable top layer, the liquid-permeable second layer, and the liquid-impermeable bottom layer were respectively laminated on both sides of the absorbent body to produce an absorbent product.

[0102] The absorbent product prepared in Example 1 was tested for its antibacterial rate, probiotic survival rate and moisture permeability.

[0103] Test method 1: Several female volunteers were selected to try out the absorbent article prepared in Example 1, and the antibacterial rate of the absorbent article after the trial was tested.

[0104] Test method 2: After the absorbent article prepared in Example 1 was stored at room temperature (25° C.) for 6 months, the probiotic survival rate of the absorbent article prepared in Example 1 was tested.

[0105] Test method three: Take physiological saline and add liquid. 5 minutes after the addition is completed, use filter paper to apply pressure for 3 minutes to test the back-seepage. The back-seepage amount is the moisture permeability.

[0106] The test results are as follows:

[0107] Antibacterial rate: The antibacterial rate against Escherichia coli and Candida albicans is ≥99.5%;

[0108] Probiotic survival rate: viable bacteria count ≥ 1×10^8 CFU / g;

[0109] Moisture permeability: The amount of core back seepage is ≤0.5g.

[0110] The above test results show that by combining the cranberry complex with the probiotic complex, a significant dual-effect synergy can be achieved, giving the absorbent product excellent antibacterial and anti-inflammatory properties and microecological regulation properties, thereby preventing the destruction of the microecological environment on the human body surface or within human organs, and subsequently having a positive impact on health. Furthermore, through microencapsulation and nanoliposome technology, it is possible to solve the problem of long-term preservation of plant ingredients and bacterial strains, thereby ensuring the long-term stability of the active ingredients in the cranberry complex and probiotic complex, thereby improving the reliability of the absorbent product. Furthermore, the addition of the above functional materials does not affect the absorptive performance of the absorbent product and will not affect the normal use of the absorbent product.

[0111] Unlike related art, the present invention comprises a cranberry complex in at least one of the liquid-permeable surface layer and the absorbent body of the absorbent article, and at least one of the cranberry complex and the probiotic complex, respectively. Furthermore, the cranberry complex comprises a cranberry complex, and the probiotic complex comprises a probiotic complex. Since both the cranberry complex and the probiotic complex are non-allergenic and have high biosafety, they can avoid irritation or allergic damage to the human body, thereby improving the safety of the absorbent article. Furthermore, since the cranberry complex inhibits the growth of harmful bacteria, while the probiotic complex promotes the growth of beneficial bacteria, the combination of the cranberry complex and the probiotic complex can impart excellent antibacterial and anti-inflammatory properties to the absorbent article, as well as microecological regulation properties, achieving a dual-effect synergy that better maintains microecological balance, thereby improving the reliability of the absorbent article and meeting the actual needs of users.

[0112] The above description is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An absorbent product, characterized in that The invention comprises a liquid-permeable surface layer, a liquid-permeable second layer, a liquid-impermeable bottom layer, and an absorbent body sandwiched between the liquid-permeable second layer and the liquid-impermeable bottom layer; Wherein, at least one of the liquid-permeable surface layer and the liquid-permeable second layer comprises a cranberry compound, and at least one of the liquid-permeable surface layer and the liquid-permeable second layer comprises a probiotic compound.

2. The absorbent article according to claim 1, wherein The cranberry complex comprises cranberry freeze-dried powder and nanoliposomes; wherein the cranberry freeze-dried powder is embedded in the nanoliposomes; The probiotic complex comprises composite bacterial powder, a freeze-drying protective agent and sodium alginate-chitosan microspheres; wherein the composite bacterial powder and the freeze-drying protective agent are embedded in the sodium alginate-chitosan microspheres.

3. The absorbent article according to claim 2, wherein The particle size of the freeze-dried cranberry powder is less than or equal to 50 microns; The composite bacterial powder includes Lactobacillus plantarum, Lactobacillus rhamnosus and Lactobacillus crispatus; The freeze-drying protective agent includes trehalose and skim milk powder; The diameter of the sodium alginate-chitosan microspheres is greater than or equal to 200 microns and less than or equal to 300 microns.

4. The absorbent article according to any one of claims 1 to 3, characterized in that The liquid-permeable surface layer comprises the cranberry compound and the probiotic compound; and / or, The liquid-permeable second layer includes the cranberry complex and the probiotic complex.

5. The absorbent article according to any one of claims 1 to 3, characterized in that The liquid-permeable top layer comprises the cranberry complex, and the liquid-permeable second layer comprises the probiotic complex; or The liquid-permeable top layer includes the probiotic complex, and the liquid-permeable second layer includes the cranberry complex.

6. The absorbent article according to any one of claims 1 to 3, characterized in that The liquid-permeable surface layer comprises the cranberry compound and the probiotic compound, and the liquid-permeable second layer comprises the cranberry compound or the probiotic compound; or The liquid-permeable surface layer includes the cranberry complex or the probiotic complex, and the liquid-permeable second layer includes the cranberry complex and the probiotic complex.

7. The absorbent article according to claim 4, wherein The content of the cranberry complex and the probiotic complex in the liquid-permeable surface layer is 2% to 13% of the mass of the liquid-permeable surface layer; and / or, The content of the cranberry complex and the probiotic complex in the second liquid-permeable layer is 2% to 13% of the mass of the second liquid-permeable layer.

8. The absorbent article according to claim 1, wherein Water-repellent layers are provided on both sides of the liquid-permeable surface layer extending in the length direction; The cranberry complex and / or the probiotic complex may be added to at least one of the liquid-permeable surface layer, the liquid-permeable second layer, and the water-repellent layer; The cranberry complex and / or the probiotic complex may be added to the absorbent.

9. A method for preparing an absorbent product, characterized in that: include: Get cranberry complex and probiotic complex; Prepare a liquid-permeable top sheet, a liquid-permeable second sheet, an absorbent body, and a liquid-impermeable bottom sheet; spraying the cranberry complex and the probiotic complex on the liquid-permeable surface layer and / or the liquid-permeable second layer; The liquid-permeable surface layer, the liquid-permeable second layer and the liquid-impermeable bottom layer are respectively compounded on both side surfaces of the absorbent body to obtain the absorbent product.

10. The preparation method according to claim 9, characterized in that The step of obtaining the cranberry complex and the probiotic complex comprises: A cranberry extract is obtained based on cranberry concentrated juice; wherein the proanthocyanidin content in the cranberry concentrated juice is 20% to 30%; The cranberry extract is spray-dried to prepare a cranberry freeze-dried powder; wherein the particle size of the cranberry freeze-dried powder is less than or equal to 50 microns; The cranberry complex is obtained by preparing a cranberry nanoliposome suspension based on cranberry freeze-dried powder; wherein the concentration of the cranberry nanoliposome suspension is 50% to 90%; mixing Lactobacillus plantarum, Lactobacillus rhamnosus, and Lactobacillus crispatus according to a first preset ratio to obtain a composite bacterial powder; mixing trehalose and skim milk powder according to a second preset ratio to obtain a lyophilization protectant; mixing the composite bacterial powder with the freeze-drying protective agent and then freeze-drying to obtain active bacterial powder; injecting the active bacterial powder into sodium alginate-chitosan microspheres to obtain the probiotic complex; The step of spraying the cranberry complex and the probiotic complex on the liquid-permeable surface layer and / or the liquid-permeable second layer comprises: spraying the cranberry nanoliposome suspension and the probiotic complex on the liquid-permeable surface layer and / or the liquid-permeable second layer; The liquid-permeable surface layer sprayed with the cranberry nanoliposome suspension and the probiotic complex and / or the liquid-permeable second layer are dried.

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