CN111012585A - Weakly acidic antibacterial absorbing article and preparation method thereof - Google Patents
Weakly acidic antibacterial absorbing article and preparation method thereof Download PDFInfo
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- CN111012585A CN111012585A CN201811178733.9A CN201811178733A CN111012585A CN 111012585 A CN111012585 A CN 111012585A CN 201811178733 A CN201811178733 A CN 201811178733A CN 111012585 A CN111012585 A CN 111012585A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/84—Accessories, not otherwise provided for, for absorbent pads
- A61F13/8405—Additives, e.g. for odour, disinfectant or pH control
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/84—Accessories, not otherwise provided for, for absorbent pads
- A61F13/8405—Additives, e.g. for odour, disinfectant or pH control
- A61F2013/8408—Additives, e.g. for odour, disinfectant or pH control with odour control
- A61F2013/8414—Additives, e.g. for odour, disinfectant or pH control with odour control with anti-microbic
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Abstract
The application discloses faintly acid antibiotic absorption articles for use and preparation method thereof, the absorption articles for use include the main part, and the main part is including range upon range of antibiotic layer, absorbed layer and the isolation layer that sets up in proper order, and wherein, antibiotic layer includes the first functional non-woven fabrics of at least one deck and at least one deck second functional non-woven fabrics, and just first functional non-woven fabrics is located the top layer on antibiotic layer, and first functional non-woven fabrics is the faintly acid non-woven fabrics, and second functional non-woven fabrics is the chitosan non-woven fabrics. Through the mode, the antibacterial performance of the absorption article can be improved.
Description
Technical Field
The application relates to the technical field of articles for daily use, in particular to a weakly acidic antibacterial absorbing article and a preparation method thereof.
Background
Body fluid, such as urine, female menstrual fluid and the like are isolated by using an absorption article in the existing daily life, the initial pH value of the body fluid is within the range of 6.5-7, but along with the increase of the using time, the body fluid is degraded by microorganisms and enzymes, the pH value of the body fluid can be increased to the range of 7.5-8, under the pH value, the absorption article can become a good culture medium for the propagation of microorganisms, and the microorganisms are bred in a large amount, so that the absorption article is not beneficial to health. In order to solve the problem of microorganism breeding, various antibacterial modes are available, such as replacing the existing common chemical fiber or cotton fiber layer with a chitin antibacterial fiber layer, and chitosan in chitin has the beneficial effect of inhibiting the growth of bacteria and fungi, so that the absorbent article has an antibacterial effect.
In a long-term research and development process, the inventor finds that chitosan has a strong antibacterial effect on bacteria in an environment with a pH value of 5.5-6.0, but in an environment with a pH value of more than 6.0, the antibacterial effect of chitosan is reduced, so that the antibacterial effect of chitosan is not favorable for playing, and especially the antibacterial effect is lost on common fungi and candida albicans in female private parts. Therefore, the antibacterial effect of the existing absorption articles using chitosan is deteriorated as the using time becomes longer, and improvement is urgently needed.
Disclosure of Invention
The application mainly solves the technical problem of providing a weakly acidic antibacterial absorbing article and a preparation method thereof, which can improve the antibacterial performance of the absorbing article.
In order to solve the technical problem, the application adopts a technical scheme that: the utility model provides an antibiotic absorption articles for use of weak acid, absorb the articles for use and include the main part, the main part is including the antibiotic layer, absorbed layer and the isolation layer that stack gradually the setting, and wherein, antibiotic layer includes the first functional non-woven fabrics of at least one deck and at least one deck second functional non-woven fabrics, and first functional non-woven fabrics is located antibiotic layer's top layer, and first functional non-woven fabrics is the weak acid non-woven fabrics, and second functional non-woven fabrics is the chitosan non-woven fabrics.
The antibacterial layer comprises a surface layer and a flow guide layer, the weakly acidic non-woven fabric is positioned on the outermost layer of the surface layer, and the chitosan non-woven fabric is positioned on the flow guide layer; the surface layer comprises at least one layer of weak acid non-woven fabric and at least one layer of third functional non-woven fabric which are sequentially stacked, wherein the length and the width of the weak acid non-woven fabric are both smaller than those of the third functional non-woven fabric, and the weak acid non-woven fabric is positioned in the middle of the body.
The absorbing article also comprises a protective wing, the protective wing surface layer comprises at least one layer of weak acid non-woven fabric, and the weak acid non-woven fabric is positioned on the outermost layer of the protective wing surface layer.
Wherein the pH value of the weakly acidic non-woven fabric is 4-6.5.
Wherein the weakly acidic non-woven fabric comprises one or more of lactic acid, plant acid, malic acid, citric acid, acetic acid and sorbic acid.
Wherein, the antibacterial layer is provided with a hole structure or an embossing structure.
In order to solve the above technical problem, another technical solution adopted by the present application is: a method for preparing a weakly acidic antimicrobial absorbent article is provided, the method comprising: providing an antibacterial layer material, an absorption layer material and an isolation layer material, wherein the antibacterial layer material comprises at least one layer of first functional non-woven fabric and at least one layer of second functional non-woven fabric, the first functional non-woven fabric is a weak acid non-woven fabric, and the second functional non-woven fabric is a chitosan non-woven fabric; and (3) sequentially stacking the antibacterial layer material, the absorption layer material and the isolation layer material, and performing composite treatment to obtain a complex, thereby obtaining the main body of the absorption article, wherein the weakly acidic non-woven fabric is positioned on the outermost layer of the antibacterial layer.
Wherein providing a weakly acidic nonwoven fabric comprises: spraying the weakly acidic aqueous solution on the hydrophilic non-woven fabric to prepare a weakly acidic non-woven fabric; or soaking the hydrophilic non-woven fabric in a weak acidic aqueous solution to prepare a weak acidic non-woven fabric; or, the weakly acidic non-woven fabric fibers are processed into the weakly acidic non-woven fabric in a non-woven fabric processing mode.
Wherein, weak acid is added into oil solution for preparing weak acid non-woven fabric fiber to prepare weak acid non-woven fabric fiber.
Wherein the weak acid is one or more of lactic acid, plant acid, malic acid, citric acid, acetic acid and sorbic acid.
The beneficial effect of this application is: different from the situation of the prior art, the weak-acid antibacterial absorption article and the preparation method thereof can overcome the defect that the existing absorption article has no antibacterial effect or has an unobvious antibacterial effect. The chitosan non-woven fabric is combined with the weakly acidic non-woven fabric, the chitosan non-woven fabric is arranged at the lower layer of the weakly acidic non-woven fabric, and the weakly acidic non-woven fabric is arranged at the outermost layer and is directly contacted with skin, so that the chitosan non-woven fabric is mild and non-irritating. The weak acid non-woven fabric can provide a weak acid environment for skin, a weak acid barrier is constructed, microorganism growth is inhibited, meanwhile, the weak acid on the non-woven fabric is water-soluble weak acid, and can permeate to the chitosan non-woven fabric through body fluid to regulate and control the pH value, so that the pH value of the chitosan non-woven fabric is not changed along with the increase of the use time of the absorption article, and the antibacterial effect of chitosan is reduced. The weakly acidic antibacterial absorbing article can be used for a long time, can keep a good antibacterial effect for a long time, and is simple in preparation process and easy to operate.
Drawings
FIG. 1 is a schematic structural view of a first embodiment of a weakly acidic antimicrobial absorbent article according to the present application;
FIG. 2 is a schematic view of a disassembled structure of a first embodiment of the weakly acidic antimicrobial absorbent article of the present application;
FIG. 3 is a schematic cross-sectional view of a first embodiment of the body of a weakly acidic antimicrobial absorbent article according to the present application;
FIG. 4 is a schematic cross-sectional view of a second embodiment of the body of a weakly acidic antimicrobial absorbent article of the present application;
FIG. 5 is a schematic cross-sectional view of a third embodiment of the body of a weakly acidic antimicrobial absorbent article of the present application;
FIG. 6 is a schematic cross-sectional view of a third embodiment of the body of a weakly acidic antimicrobial absorbent article of the present application;
FIG. 7 is a schematic cross-sectional view of a fourth embodiment of the body of a weakly acidic antimicrobial absorbent article of the present application;
FIG. 8 is a schematic flow chart of a first embodiment of a method for making a weakly acidic antimicrobial absorbent article according to the present application;
FIG. 9 is a schematic flow chart of a second embodiment of a method for making a weakly acidic antimicrobial absorbent article according to the present application;
Detailed Description
In order to make the purpose, technical solution and effect of the present application clearer and clearer, the present application is further described in detail below with reference to the accompanying drawings and examples.
The application provides a faintly acid antibiotic absorption articles for use, contains at least one deck faintly acid non-woven fabrics and at least one deck chitosan non-woven fabrics in this absorption articles for use, and faintly acid non-woven fabrics can provide a relatively invariable acid environment for the chitosan non-woven fabrics, and chitosan has higher antibacterial capacity under the slightly acidic condition in coordination.
Referring to fig. 1 to fig. 3, fig. 1 is a schematic structural diagram of a first embodiment of the weakly acidic antibacterial absorbent article of the present application, fig. 2 is a schematic structural diagram of a disassembled first embodiment of the weakly acidic antibacterial absorbent article of the present application, and fig. 3 is a schematic sectional structural diagram of the first embodiment of the weakly acidic antibacterial absorbent article of the present application. In this embodiment, the absorbent article comprises a main body 100 and wings 200, wherein the main body 100 comprises an antibacterial layer 10, an absorption layer 20 and a separation layer 30, wherein the antibacterial layer 10 comprises at least one layer of first functional nonwoven 11 and at least one layer of second functional nonwoven 12, the first functional nonwoven 11 is positioned on the outermost layer of the antibacterial layer 10, the first functional nonwoven 11 is a weakly acidic nonwoven, and the second functional nonwoven 12 is a chitosan nonwoven.
Specifically, the chitosan non-woven fabric contains chitosan, which is a deacetylation product of chitin, also called soluble chitin, chitin and chitosan, and is a natural biopolymer. The chitosan has excellent biological functionality, biocompatibility, blood compatibility, safety, microbial degradability and the like, and has better antibacterial effect on a plurality of strains such as staphylococcus aureus, escherichia coli, candida albicans and the like. However, the antibacterial ability of chitosan is affected by the pH of the surrounding environment. Research shows that the chitosan can play the strongest antibacterial role in an acidic environment with the pH value of 5.5-6.0, and in an environment with the pH value of more than 6.0, the antibacterial performance of the chitosan is correspondingly reduced due to the fact that the solubility of the chitosan is greatly reduced. The initial pH value of human body fluid (such as urine and female menstrual fluid) is within the range of 6.5-7, and along with the increase of the retention time of the body fluid on the absorbing article, the body fluid is degraded by microorganisms and enzymes, the pH value of the body fluid can be increased to the range of 7.5-8, the antibacterial performance of chitosan is seriously influenced, and the antibacterial performance is greatly reduced.
In view of this, according to the absorbing article provided by the application, the layer of weak acid non-woven fabric is arranged on the absorbing article, and the weak acid non-woven fabric is arranged on the outermost layer, so that the acidity and alkalinity of the body fluid can be buffered and neutralized, the influence of the body fluid on the pH value of the environment where the chitosan is located can be reduced, and the chitosan is always located in a relatively stable acidic environment, so as to exert the maximum antibacterial performance. The weakly acidic non-woven fabric and the chitosan non-woven fabric are used together, a certain synergistic effect exists between the weakly acidic non-woven fabric and the chitosan non-woven fabric, the antibacterial performance of the chitosan non-woven fabric can be enhanced, meanwhile, the surface of the absorption article is slightly acidic, the surface of the absorption article is closer to the pH value of human skin, the stimulation of the absorption article to the skin is reduced, and the absorption article is more suitable for use.
In one embodiment, the PH of the weakly acidic nonwoven fabric is 4.0 to 6.5, specifically 5.0 to 6.5, more specifically 5.0 to 6.0, for example, the PH of the weakly acidic nonwoven fabric is 4.0, 4.2, 4.6, 4.8, 5.2, 5.6, 5.8, 6.2, etc. If the pH value of the non-woven fabric is too high, an acidic environment cannot be well provided, and if the pH value is too low and the pH value is too high, certain irritation is brought to the skin of a human body, allergy, burn and other hazards can be caused, the non-woven fabric is not used by a user, and particularly, the skin of an infant is delicate and not easy to irritate.
Among them, in one embodiment, the weakly acidic nonwoven fabric can be obtained by spraying a weakly acidic aqueous solution on a hydrophilic nonwoven fabric. The obtained weakly acidic non-woven fabric has the characteristics of skin friendliness, no stimulation, low sensitivity and the like, and is more suitable for application. Of course, a weakly acidic nonwoven fabric may be produced by soaking or the like. In another embodiment, the weakly acidic nonwoven fabric may be prepared by processing weakly acidic nonwoven fabric fibers into a nonwoven fabric. Specifically, a weak acid is added to an oiling agent for preparing a weak acid nonwoven fabric fiber to prepare the weak acid nonwoven fabric fiber. The non-woven fabric prepared by the method has weak acidity, is a characteristic of the non-woven fabric, and has longer acidity. In this way, the nonwoven fabric itself is made acidic, and the acidity is more stable than a method of adding an acidic powder to an absorbent article. This is because the additives may cause powder allergy, release of acidity too quickly (resulting in too low PH and too high acidity), too slow (resulting in too high PH and too low acidity), and the like.
In the production of the weakly acidic nonwoven fabric, one or more of lactic acid, plant acid, malic acid, citric acid, acetic acid and sorbic acid may be used. The acid not only has a proper pH value, but also is organic acid, is more compatible with the skin, has good water solubility and is favorable for diffusion and permeation along with body fluid.
In one embodiment, the wings 200 are also made of a weakly acidic nonwoven fabric in order to provide an acidic environment over a larger area and further improve antimicrobial properties.
Wherein, in order to improve the absorption performance of the absorption article, the antibacterial layer is provided with a hole structure or an embossing structure; in order to improve the diffusion performance of body fluid on the absorbent article, the antibacterial layer is also provided with structures such as a diversion trench 110 and the like. The liquid guiding device has a flow guiding effect on body fluid, so that the body fluid can be timely diffused to the edge area of the absorption article from the middle position, the space of the absorption article is fully utilized, and the absorption performance is improved.
In one embodiment, the antibacterial layer may be formed by compounding multiple layers of non-woven fabrics, and generally, the antibacterial layer includes a surface layer and a flow guiding layer; the weakly acidic non-woven fabric is positioned on the outermost layer of the surface layer, and the chitosan non-woven fabric is positioned on the flow guide layer. Referring to fig. 4, fig. 4 is a schematic cross-sectional structure view of a second embodiment of the weak acid antibacterial absorbent article of the present application. In this embodiment, the antibacterial layer comprises a surface layer and a flow guide layer, wherein the flow guide layer is a layer of chitosan non-woven fabric 12; the surface layer comprises a layer of third functional non-woven fabric 13 besides the weak acid non-woven fabric 11, and the third functional non-woven fabric 13 is positioned between the weak acid non-woven fabric 11 and the chitosan non-woven fabric 12. By adding a layer of third functional non-woven fabric, a slow release effect can be achieved, and the weak acid non-woven fabric has certain persistence on the synergistic effect of the chitosan non-woven fabric.
Specifically, the third functional nonwoven fabric may be a conventional nonwoven fabric having hydrophilicity and air permeability. It may be a nonwoven fabric having other functions, such as a nonwoven fabric having a deodorizing function, a nonwoven fabric having an anti-inflammatory function, a nonwoven fabric containing a medicinal component, and the like.
Referring to fig. 5, fig. 5 is a schematic cross-sectional view of a third embodiment of the weak acid antibacterial absorbent article of the present application. In this embodiment, the antibacterial layer comprises a surface layer and a flow guide layer, wherein the flow guide layer is a layer of chitosan non-woven fabric 12; the surface layer comprises a layer of weak acid non-woven fabric 11 and a layer of third functional non-woven fabric 13, and because the whole surface of the absorbing article is not soaked by body fluid in the using process, generally, the middle position of the absorbing article is contacted with the body fluid earlier and bacteria are easy to breed, in order to save cost, the weak acid non-woven fabric 11 can be arranged only in the middle part, namely the length and the width of the weak acid non-woven fabric 11 are both smaller than those of the third functional non-woven fabric 13, and the weak acid non-woven fabric 11 is positioned in the middle position of the body. By the mode, the antibacterial effect can be improved, and the cost can be reduced.
Referring to fig. 6, fig. 6 is a schematic cross-sectional structure view of a third embodiment of the weak acid antibacterial absorbent article of the present application. In this embodiment, the antibacterial layer comprises a surface layer and a flow guide layer, wherein the flow guide layer is a layer of chitosan non-woven fabric 12; the facing layer comprises two layers of weakly acidic nonwoven fabric 11. By this means, a more durable acidic environment can be provided, and the absorbent article can continue to have antibacterial properties even if used for a long time, and is particularly suitable for the production of an absorbent article for night use.
Referring to fig. 7, fig. 7 is a schematic cross-sectional view illustrating a fourth embodiment of the weak acid antibacterial absorbent article of the present application. In this embodiment, the antibacterial layer comprises a surface layer and a diversion layer, wherein the surface layer is a layer of weak acid non-woven fabric 11; the flow guide layer comprises a fourth functional nonwoven fabric 14 in addition to the chitosan nonwoven fabric 12. The fourth functional nonwoven 14 is located between the chitosan nonwoven 12 and the absorbent layer 20.
Wherein, the chitosan non-woven fabric 12 and the fourth functional non-woven fabric 14 are made of non-woven fabrics with flow guiding function. Specifically, the nonwoven fabric with the flow guiding function generally has relatively large pores and a large diffusion rate, and can accelerate the diffusion of body fluid and enhance the permeation and absorption capacity of the absorption article. The flow conductivity can be improved by adding one more layer of the fourth functional non-woven fabric 14.
Specifically, the fourth functional nonwoven fabric may be a conventional nonwoven fabric having hydrophilicity and air permeability. It may be a nonwoven fabric having other functions, such as a nonwoven fabric having a deodorizing function, a nonwoven fabric having an anti-inflammatory function, a nonwoven fabric containing a medicinal component, and the like.
The above description is only exemplary of the absorbent article composite layer, and is not limited to these embodiments, and the number of the nonwoven fabrics may be increased or decreased adaptively according to the needs, and the corresponding functional effects may be selected. The absorbent article provided by the application can be used as a baby diaper, a female sanitary towel, a sanitary pad and the like.
Referring to fig. 8, fig. 8 is a schematic flow chart of a first embodiment of a method for manufacturing a weakly acidic antibacterial absorbent article according to the present application. In this embodiment, the method comprises the steps of:
s801: the method comprises the steps of providing an antibacterial layer material, an absorption layer material and an isolation layer material, wherein the antibacterial layer material comprises at least one layer of first functional non-woven fabric and at least one layer of second functional non-woven fabric, the first functional non-woven fabric is a weak acid non-woven fabric, and the second functional non-woven fabric is a chitosan non-woven fabric.
The material of the absorption layer and the material of the isolation layer can be selected from the existing materials, and the weakly acidic non-woven fabric and the chitosan non-woven fabric can be prepared in a predetermined mode.
S802: and (3) sequentially stacking the antibacterial layer material, the absorption layer material and the isolation layer material, and performing composite treatment to obtain a complex, thereby obtaining the main body of the absorption article, wherein the weakly acidic non-woven fabric is positioned on the outermost layer of the antibacterial layer.
Wherein, the compounding treatment can be adhesive compounding, hot-pressing compounding or glue-spraying hot compounding and the like.
Referring to fig. 9, fig. 9 is a schematic flow chart of a second embodiment of the method for making a weakly acidic antimicrobial absorbent article of the present application. In this embodiment, the method comprises the steps of:
preparing an absorption layer:
the pulp board is crushed to obtain fluff pulp, then the fluff pulp is mixed with Super Absorbent Polymer (SAP) until a forming drum is formed, and the absorbent body, namely the absorption layer, is obtained by coating toilet paper.
Preparing an antibacterial layer:
weakly acidic nonwoven fabric, chitosan nonwoven fabric, third functional nonwoven fabric, fourth functional nonwoven fabric, etc. used for the antibacterial layer are prepared by a predetermined method.
Among them, in one embodiment, a weakly acidic non-woven fabric having advantages of skin friendliness, low sensitivity, and the like is prepared by spraying a weakly acidic aqueous solution onto a hydrophilic non-woven fabric. Of course, the hydrophilic nonwoven fabric may be soaked in the weakly acidic aqueous solution for a predetermined time and then dried to a predetermined water content to obtain the weakly acidic nonwoven fabric.
In another embodiment, the weakly acidic nonwoven fabric is prepared by subjecting weakly acidic nonwoven fabric fibers to a nonwoven fabric processing regime. Specifically, the weakly acidic non-woven fabric fiber is prepared by the following production process that PE/PET particles are melt-spun, oil is stretched, the fiber is bent, dried and cut, wherein the addition amount of the oil is 0.15% -2.5%. The weakly acidic non-woven fabric fiber is prepared by adding a weak acid component into an oiling agent in the preparation process, and performing pH adjustment by using a pH adjusting agent, wherein the alkaline pH adjusting agent is sodium bicarbonate or disodium hydrogen phosphate.
The weak acid solution and the weak acid added to the oil agent may be one of lactic acid, plant acid, malic acid, citric acid and sorbic acid.
In one embodiment, the chitosan nonwoven fabric is obtained by coating or soaking chitosan acetic acid aqueous solution. Specifically, the chitosan non-woven fabric can be prepared by mixing 10-100 parts by weight of water-soluble chitosan fiber and 0-90 parts by weight of base fiber.
The processing method of the chitosan non-woven fabric mainly comprises three methods, namely a papermaking method, a needle punching method and a spunlace method.
The paper making method is that the chitosan fiber is dispersed in water to prepare fiber suspension pulp, the suspension pulp is conveyed to an inclined net to prepare a net curtain, and the chitosan non-woven fabric is obtained after water pumping and drying.
The needle punching method is that chitosan fiber is fully mixed and carded on a carding machine, and the obtained fiber web is made into chitosan non-woven fabric through needle punching reinforcement.
The spunlace method comprises the steps of metering chitosan fibers, carding and forming a web after opening and mixing, spunlacing the front and back sides of the web, drying and coiling to obtain the chitosan non-woven fabric.
The third functional nonwoven fabric and the fourth functional nonwoven fabric may be produced by corresponding methods according to functional requirements.
After various non-woven fabrics are prepared, the non-woven fabrics are pretreated, and the weak acid non-woven fabrics and/or the third functional non-woven fabrics which are used as the surface layers of the antibacterial layers are punched or embossed. The facing layer may comprise one, two or more layers of non-woven fabric of different functions, and the resulting pore structure may be in a regular or irregular arrangement.
Preparation of composite 1:
the antibacterial layer comprises a layer of weak acid non-woven fabric, a layer of third functional non-woven fabric and a layer of chitosan non-woven fabric; and the third functional nonwoven fabric is a conventional general nonwoven fabric. In other embodiments, the antibacterial layer may also include a non-woven fabric of other layers, which please refer to the description of the above embodiments and will not be described herein again.
Specifically, a layer of weakly acidic nonwoven fabric subjected to perforation and/or embossing treatment, a layer of ordinary nonwoven fabric and a layer of chitosan nonwoven fabric are subjected to composite treatment to obtain a pre-composite 1, wherein the weakly acidic nonwoven fabric is positioned on the outermost surface of the antibacterial layer during the composite treatment. And then compounding wing non-woven fabrics at two sides of the pre-compound body 1 to obtain a compound body 1. The compounding treatment can be adhesive compounding, hot-pressing compounding or glue-spraying hot compounding. The embodiment is described by taking a hot melt adhesive hot press composite process as an example, but the invention is not limited thereto.
Preparation of composite 2:
and compounding the composite body 1 and an absorber to obtain a pre-composite body 2, and pressing a diversion trench on the pre-composite body 2 according to a preset shape to obtain the composite body 2, wherein the compounding can be one of adhesive compounding, hot-press compounding or glue-spraying hot compounding.
Preparation of composite 3:
and compounding the composite body 2 and the isolating layer to obtain a composite body 3, wherein the compounding can be one of adhesive compounding, hot-pressing compounding or glue-spraying hot compounding.
And pressing the composite 3, sealing and shaping, and cutting to a preset shape and size.
Adding gum:
and (3) coating the gum on the release film according to a preset shape, and transferring the gum on the release film to the isolation layer of the cut complex 3 according to a preset position.
And laminating, folding, pasting and packaging to obtain the weakly acidic antibacterial absorbing article.
The application provides an article are absorbed to weak acid antibiotic, combine chitosan non-woven fabrics and weak acid non-woven fabrics, set up the chitosan non-woven fabrics in the lower floor of weak acid non-woven fabrics as the drainage layer, the weak acid non-woven fabrics of surface course, its pH is 4 ~ 6.5 and is close the pH value of human skin, direct and skin contact, it is mild not amazing, can provide the environment of weak acid for the skin, construct the weak acid barrier, restrain the microorganism growth. Meanwhile, the weak acid on the weak acid non-woven fabric is water-soluble weak acid, can permeate to the chitosan non-woven fabric of the flow guide layer through body fluid, and regulates and controls the pH value, so that the chitosan non-woven fabric of the flow guide layer does not change the pH value along with the increase of the service time of the sanitary product, the pH value is increased, the antibacterial effect of chitosan is reduced, the weak acid antibacterial absorption article can guarantee the environment of the weak acid for a long time, and the high-efficiency antibacterial effect of chitosan is guaranteed.
The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (10)
1. The utility model provides a faintly acid antibiotic absorption articles for use, its characterized in that, the absorption articles for use include the main part, the main part is including the antibiotic layer, absorbed layer and the isolation layer that stack gradually the setting, wherein, antibiotic layer includes the first functional non-woven fabrics of at least one deck and the functional non-woven fabrics of at least one deck second, just first functional non-woven fabrics is located the top layer on antibiotic layer, first functional non-woven fabrics is the faintly acid non-woven fabrics, the functional non-woven fabrics of second is the chitosan non-woven fabrics.
2. The weakly acidic antibacterial absorbing article according to claim 1, wherein the antibacterial layer comprises a surface layer and a flow guiding layer, the weakly acidic non-woven fabric is located on the outermost layer of the surface layer, and the chitosan non-woven fabric is located on the flow guiding layer;
the surface layer comprises at least one layer of weak acid non-woven fabric and at least one layer of third functional non-woven fabric which are sequentially stacked, wherein the length and the width of the weak acid non-woven fabric are both smaller than those of the third functional non-woven fabric, and the weak acid non-woven fabric is positioned in the middle of the body.
3. The weakly acidic antimicrobial absorbent article of claim 1 further comprising a flap, wherein said flap facing comprises at least one layer of weakly acidic nonwoven, and wherein said weakly acidic nonwoven is located on the outermost layer of said flap facing.
4. A weakly acidic antibacterial absorbing article according to any one of claims 1 to 3, wherein said weakly acidic nonwoven fabric has a pH of 4 to 6.5.
5. A weakly acidic antibacterial absorbing article according to any one of claims 1 to 3, wherein said weakly acidic nonwoven fabric comprises one or more of lactic acid, vegetable acid, malic acid, citric acid, acetic acid and sorbic acid.
6. A weakly acidic antimicrobial absorbent article according to any of claims 1 to 3 wherein said antimicrobial layer is provided with a perforated or embossed structure.
7. A method of making a weakly acidic, antimicrobial absorbent article, said method comprising:
providing an antibacterial layer material, an absorption layer material and an isolation layer material, wherein the antibacterial layer material comprises at least one layer of first functional non-woven fabric and at least one layer of second functional non-woven fabric, the first functional non-woven fabric is a weak acid non-woven fabric, and the second functional non-woven fabric is a chitosan non-woven fabric;
and sequentially stacking the antibacterial layer material, the absorption layer material and the isolation layer material, and performing composite treatment to obtain a complex, thereby obtaining the main body of the absorption article, wherein the weakly acidic non-woven fabric is positioned on the outermost layer of the antibacterial layer.
8. A method of making a weakly acidic antimicrobial absorbent article as claimed in claim 7 wherein said providing a weakly acidic nonwoven fabric comprises:
spraying a weakly acidic aqueous solution on a hydrophilic non-woven fabric to prepare the weakly acidic non-woven fabric; or the like, or, alternatively,
soaking a hydrophilic non-woven fabric in a weakly acidic aqueous solution to prepare the weakly acidic non-woven fabric; or the like, or, alternatively,
and (3) processing the weak-acid non-woven fabric fibers into the weak-acid non-woven fabric in a non-woven fabric processing mode.
9. The method of claim 8, wherein the step of processing the weakly acidic nonwoven fabric into the weakly acidic nonwoven fabric comprises:
and adding weak acid into an oiling agent for preparing the weak acid non-woven fabric fiber to prepare the weak acid non-woven fabric fiber.
10. A method of producing a weakly acidic antimicrobial absorbent article as claimed in claim 8 or 9 wherein said weak acid is one or more of lactic acid, vegetable acid, malic acid, citric acid, acetic acid and sorbic acid.
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