CN113389083A - Antibacterial composite material, hygienic product and preparation method thereof - Google Patents
Antibacterial composite material, hygienic product and preparation method thereof Download PDFInfo
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- CN113389083A CN113389083A CN202010177138.4A CN202010177138A CN113389083A CN 113389083 A CN113389083 A CN 113389083A CN 202010177138 A CN202010177138 A CN 202010177138A CN 113389083 A CN113389083 A CN 113389083A
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- nano silver
- ammonium salt
- antibacterial agent
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- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 145
- 239000002131 composite material Substances 0.000 title claims abstract description 65
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 title description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 64
- 239000003242 anti bacterial agent Substances 0.000 claims abstract description 47
- 230000001954 sterilising effect Effects 0.000 claims abstract description 39
- 239000011148 porous material Substances 0.000 claims abstract description 36
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims abstract description 32
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 23
- 239000003899 bactericide agent Substances 0.000 claims abstract description 20
- 238000010521 absorption reaction Methods 0.000 claims description 22
- 230000000845 anti-microbial effect Effects 0.000 claims description 20
- -1 nano silver ions Chemical class 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 11
- 238000000576 coating method Methods 0.000 claims description 11
- 125000003118 aryl group Chemical group 0.000 claims description 10
- 239000004745 nonwoven fabric Substances 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 9
- 238000005507 spraying Methods 0.000 claims description 8
- 239000004599 antimicrobial Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 150000003863 ammonium salts Chemical group 0.000 claims description 6
- 238000007598 dipping method Methods 0.000 claims description 4
- 239000000796 flavoring agent Substances 0.000 claims description 4
- 235000013355 food flavoring agent Nutrition 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 239000004753 textile Substances 0.000 claims description 4
- KHSLHYAUZSPBIU-UHFFFAOYSA-M benzododecinium bromide Chemical compound [Br-].CCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 KHSLHYAUZSPBIU-UHFFFAOYSA-M 0.000 claims description 3
- DDXLVDQZPFLQMZ-UHFFFAOYSA-M dodecyl(trimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)C DDXLVDQZPFLQMZ-UHFFFAOYSA-M 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 2
- 125000001453 quaternary ammonium group Chemical group 0.000 claims description 2
- 241000894006 Bacteria Species 0.000 description 14
- 230000002745 absorbent Effects 0.000 description 9
- 239000002250 absorbent Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 241000700605 Viruses Species 0.000 description 6
- 229910052709 silver Inorganic materials 0.000 description 6
- 239000004332 silver Substances 0.000 description 6
- 239000000835 fiber Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000001580 bacterial effect Effects 0.000 description 3
- 230000003115 biocidal effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000002401 inhibitory effect Effects 0.000 description 3
- 230000002147 killing effect Effects 0.000 description 3
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- 108091005804 Peptidases Proteins 0.000 description 2
- 239000004365 Protease Substances 0.000 description 2
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 125000004433 nitrogen atom Chemical group N* 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 238000009958 sewing Methods 0.000 description 2
- PXQLVRUNWNTZOS-UHFFFAOYSA-N sulfanyl Chemical compound [SH] PXQLVRUNWNTZOS-UHFFFAOYSA-N 0.000 description 2
- 125000003396 thiol group Chemical group [H]S* 0.000 description 2
- 241000711573 Coronaviridae Species 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 229910052586 apatite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000004750 melt-blown nonwoven Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002114 nanocomposite Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000003206 sterilizing agent Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 229910000166 zirconium phosphate Inorganic materials 0.000 description 1
- LEHFSLREWWMLPU-UHFFFAOYSA-B zirconium(4+);tetraphosphate Chemical compound [Zr+4].[Zr+4].[Zr+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LEHFSLREWWMLPU-UHFFFAOYSA-B 0.000 description 1
Images
Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/02—Layered materials
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/30—Antimicrobial, e.g. antibacterial
- A41D31/305—Antimicrobial, e.g. antibacterial using layered materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/06—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/46—Compounds containing quaternary nitrogen atoms
- D06M13/463—Compounds containing quaternary nitrogen atoms derived from monoamines
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/46—Compounds containing quaternary nitrogen atoms
- D06M13/467—Compounds containing quaternary nitrogen atoms derived from polyamines
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/36—Biocidal agents, e.g. fungicidal, bactericidal, insecticidal agents
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Ceramic Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Pest Control & Pesticides (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
The application discloses an antibacterial composite material, a sanitary product and a preparation method of the antibacterial composite material, wherein the antibacterial composite material comprises an antibacterial layer and a sterilization layer, the antibacterial layer is a porous material layer, and the antibacterial layer comprises a nano-silver antibacterial agent; the sterilizing layer is at least positioned on one side surface of the antibacterial layer and comprises a quaternary ammonium salt bactericide. Through the mode, the antibacterial property of the antibacterial composite material can be improved.
Description
Technical Field
The application relates to the technical field of papermaking, in particular to an antibacterial composite material, a hygienic product and a preparation method thereof.
Background
With the improvement of living standard and the enhancement of health consciousness, people increasingly demand antibacterial performance of some sanitary products (such as masks, wound plasters, sanitary towels, paper diapers and other disposable sanitary products) in daily life. In recent years, there are a great number of disposable sanitary products with various antibacterial concepts on the market, and particularly under the influence of recent novel coronavirus epidemic situations, the demand of the antibacterial disposable sanitary products is increased dramatically.
The antibacterial performance of the existing antibacterial disposable sanitary article is endowed in the production process of the sanitary article, and special processing procedures need to be set, such as adding an antibacterial non-woven layer in a paper diaper, adding an antibacterial agent in a sanitary towel chip structure, adding an antibacterial agent in the middle layer of a disposable mask, adding a bactericide on a wound patch and the like. At present, no general antibacterial material which can be directly used for disposable sanitary products such as masks, wound plasters, sanitary towels, paper diapers and the like exists.
Disclosure of Invention
The technical problem mainly solved by the application is to provide an antibacterial composite material, a hygienic product and a preparation method thereof, and the antibacterial property of the antibacterial composite material can be improved.
In order to solve the technical problem, the application adopts a technical scheme that: providing an antibacterial composite material, wherein the antibacterial composite material comprises an antibacterial layer and a sterilization layer, the antibacterial layer is a porous material layer, and the antibacterial layer comprises a nano-silver antibacterial agent; the sterilizing layer is at least positioned on one side surface of the antibacterial layer and comprises a quaternary ammonium salt bactericide.
Wherein, the addition amount of the nano silver antibacterial agent in the porous material layer is 1 to 50 percent.
Wherein, the weight ratio of the quaternary ammonium salt sterilizing layer to the porous material layer is 0.05-2%.
The nano silver antibacterial agent comprises at least one of a nano silver ion antibacterial agent and a nano silver simple substance antibacterial agent, wherein the nano silver ion antibacterial agent is an antibacterial agent with nano silver ions attached to a carrier, and the nano silver simple substance is nano silver powder.
The quaternary ammonium salt bactericide comprises dodecyl trimethyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide, cyano quaternary ammonium salt, dialkyl quaternary ammonium bromide and at least one of polyazacyclo quaternary ammonium salt, polyquaternary ammonium salt and diquaternary ammonium salt.
Wherein the grain size of the nano silver ion antibacterial agent is 20 nm-400 nm, the concentration of nano silver ions in the nano silver ion antibacterial agent is 50 ppm-5000 ppm, and the grain size of the nano silver simple substance antibacterial agent is 100 nm-10 nm.
Wherein the porous material layer has a basis weight of 12g/m2～50g/m2The thickness is 150-400 μm.
The antibacterial composite material further comprises an absorption layer, the absorption layer is positioned on the surface of one side, away from the antibacterial layer, of the sterilizing layer, the absorption layer is a hydrophilic layer, and the absorption layer and the antibacterial layer are fixedly combined in a pressing joint or a pressing joint line mode.
Wherein, the antibacterial composite material also comprises one or more of an aromatic layer, a filter layer and a water-resisting layer. The aromatic layer is positioned on the surface of one side of the antibacterial layer, which is far away from the absorption layer, and the aromatic layer comprises a flavoring agent; the filter layer is positioned between the sterilization layer and the absorption layer; the water-resistant layer is positioned on the surface of one side of the antibacterial layer far away from the absorption layer.
Wherein the porous material layer is one or more of a tissue layer, a non-woven material layer or a textile material layer; the absorption layer is one of household paper, spunlace non-woven fabric, hydrophilic hot air non-woven fabric or hydrophilic spun-bonded non-woven fabric.
In order to solve the above technical problem, another technical solution adopted by the present application is: a hygiene article is provided that includes the antimicrobial composite of any of the above embodiments.
In order to solve the above technical problem, another technical solution adopted by the present application is: the preparation method of the antibacterial composite material is provided, and the method comprises the steps of dispersing the nano-silver antibacterial agent in the porous material in a spraying, dipping or coating mode to form an antibacterial layer; and coating the surface of at least one side of the antibacterial layer with a quaternary ammonium salt bactericide by a spraying or roll coating mode to form the antibacterial layer.
The beneficial effect of this application is: different from the situation of the prior art, the quaternary ammonium salt sterilization layer is compounded on the surface of the nano-silver antibacterial layer, so that on one hand, the quaternary ammonium salt sterilization layer can be combined with fibers of the porous material layer by utilizing the strong reactivity of positively charged nitrogen atoms in quaternary ammonium salt molecules to form a net-shaped structure layer to cover the surface of the porous material layer, the effect of fixing the nano-silver antibacterial agent is achieved, and the antibacterial performance is prevented from being weakened due to the fact that the nano-silver antibacterial agent is separated from the porous material; on the other hand, a bactericide is added, and the combination of the two bactericides and the bactericide can increase the variety of bacteria inhibiting (killing) strains and effectively kill various bacteria.
Drawings
FIG. 1 is a schematic cross-sectional view of an antimicrobial composite according to an embodiment of the present disclosure;
FIG. 2 is a schematic cross-sectional view of another antimicrobial composite in accordance with an embodiment of the present disclosure;
FIG. 3 is a schematic plan view of another antimicrobial composite in accordance with an embodiment of the present application;
FIG. 4 is a schematic cross-sectional view of another antimicrobial composite in accordance with an embodiment of the present disclosure;
FIG. 5 is a schematic cross-sectional view of yet another antimicrobial composite in accordance with an embodiment of the present application;
FIG. 6 is a schematic cross-sectional view of yet another antimicrobial composite in accordance with an embodiment of the present application;
FIG. 7 is a schematic cross-sectional view of yet another antimicrobial composite in accordance with an embodiment of the present application;
fig. 8 is a schematic flow chart of a method for preparing an antibacterial composite material according to an embodiment of 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.
Referring to fig. 1, fig. 1 is a schematic cross-sectional view of an antibacterial composite material according to an embodiment of the present disclosure. In this embodiment, the antibacterial composite material includes an antibacterial layer 10 and a bactericidal layer 20.
The antibacterial layer 10 is a porous material layer, and the nano silver antibacterial agent is uniformly dispersed in the porous material layer, so the antibacterial layer 10 is also called a nano silver antibacterial layer. The sterilization layer 20 is at least located on one side surface of the antibacterial layer 10, and the sterilization layer 20 includes a quaternary ammonium salt sterilization agent, so the sterilization layer 20 is also called a quaternary ammonium salt sterilization layer.
In the embodiment, the quaternary ammonium salt sterilization layer is compounded on the surface of the nano silver antibacterial layer, so that on one hand, the quaternary ammonium salt sterilization layer can be combined with the fibers of the porous material layer by utilizing the strong reactivity of positively charged nitrogen atoms in quaternary ammonium salt molecules to form a net-shaped structure layer to cover the surface of the porous material layer, so that the nano silver antibacterial agent is fixed, and the antibacterial performance is prevented from being weakened due to the fact that the nano silver antibacterial agent is separated from the porous material; on the other hand, a bactericide is added, and the combination of the two bactericides and the bactericide can increase the variety of bacteria inhibiting (killing) strains and effectively kill various bacteria.
In one embodiment, the nano-silver antimicrobial agent comprises at least one of a nano-silver ion antimicrobial agent and a nano-silver elemental antimicrobial agent. Specifically, the nano silver ion antibacterial agent is an antibacterial agent formed by attaching nano silver ions on a carrier, the carrier of the nano silver ion antibacterial agent can be mineral substances such as zirconium phosphate, apatite, zeolite and the like, and the nano silver ion antibacterial agent with a nano structure can be obtained by attaching the nano silver ions on the carrier. The obtained nano silver ion antibacterial agent has particle size of 20 nm-400 nm, such as 50nm, 100nm, 150nm, 200nm, 300nm, etc.; the concentration of the nano silver ion in the nano silver ion antibacterial agent is 50ppm to 5000ppm, such as 150ppm, 350ppm, 1000ppm, 2000ppm, 3000ppm, 4000ppm, etc.
The nano silver simple substance is nano silver powder obtained by physical or chemical means, and the single silver is prepared into nano micro powder, so that the unit surface area of silver can be increased, the release amount of silver ions can be increased, and the bactericidal power can be improved. The silver simple substance can be directly used or prepared into colloidal solution for use, and in the using process, the silver simple substance can be oxidized into silver ions by an oxidant in the air to play an antibacterial role. The particle size of the nano silver simple substance antibacterial agent can be 100 nm-10 μm, such as 50nm, 20nm, 1nm, 50 μm, 30 μm and the like.
The nano silver ion antibacterial agent adopted in the embodiment of the application is a very high-efficiency antibacterial agent, and can effectively sterilize at very low concentration (ppm level or even lower). The nano silver ions can strongly attract sulfhydryl (-SH) on the protease in the bacterial body, and can be rapidly combined with the sulfhydryl (-SH) to inactivate the protease, so that the bacteria can die. When the bacteria are killed by the nano silver ions, the nano silver ions are dissociated from the bacterial corpses and then contact with other bacterial colonies, and the process is repeatedly carried out, so that the nano silver ions have strong sterilization durability and are a permanent bactericide. And the nano silver ions do not cause resistant bacteria to appear in the bacteria and the viruses in the bacteria inhibiting (killing) mode of the bacteria and the viruses.
In one embodiment, the nano-silver antimicrobial agent may be uniformly dispersed in the porous material layer by spraying, dipping, or coating. The addition amount of the nano silver antibacterial agent in the porous material layer is 1-50%, such as 5%, 15%, 25%, 40% and the like. It can be understood that the addition amount of the nano silver antibacterial agent in the porous material layer can be adaptively adjusted according to the antibacterial grade of the product to be actually applied.
In one embodiment, the porous material layer may be a thin porous material layer, which may be one or more of a tissue paper layer, a nonwoven material layer, or a textile material layer. Wherein, the tissue paper layer is a sheet-shaped material which is prepared by dispersing plant fiber raw materials into single fiber and then interweaving and forming, such as toilet paper, facial tissue, wiping paper and the like. Basis weight of thin apertured material layerCan be 12g/m2～50g/m2E.g. 15g/m2、20g/m2、25g/m2、40g/m2Etc.; the thickness is 150 μm to 400 μm, such as 180 μm, 230 μm, 270 μm, 350 μm, etc.
In one embodiment, the quaternary ammonium salt sterilizing layer 20 is formed of a quaternary ammonium salt sterilizing agent coated on the surface of the antibacterial layer 10. The quaternary ammonium salt bactericide can be coated on one side surface of the thin porous material layer by spraying or roll coating, for example, to form the quaternary ammonium salt bactericide layer 20.
The quaternary ammonium salt bactericide can comprise at least one of dodecyl trimethyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide, cyano quaternary ammonium salt, double-C alkyl quaternary ammonium bromide, polyazacyclo quaternary ammonium salt, polyquaternary ammonium salt, biquaternary ammonium salt and other quaternary ammonium salt bactericides.
In one embodiment, the weight ratio of the quaternary ammonium salt sterilizing layer 20 to the thin porous material layer 10 is 0.05% to 2%, such as 0.1%, 0.3%, 0.5%, 1.1%, 1.5%, etc. By means of the arrangement, a uniform net-shaped structure can be formed on the surface of the thin porous material layer to fix the nano-silver antibacterial agent.
Referring to fig. 2, fig. 2 is a schematic cross-sectional view of another antibacterial composite material according to an embodiment of the present disclosure. In this embodiment, the antibacterial composite material includes the bactericidal layer 10, the antibacterial layer 20, and the absorbent layer 30.
The absorption layer 30 is located on the surface of the sterilization layer 20 away from the antimicrobial layer 10, and the absorption layer 30 is a hydrophilic layer and can rapidly absorb water vapor in liquid and air flow. The absorbent layer 30 may be one of a tissue, a spunlace nonwoven fabric, a hydrophilic hot air nonwoven fabric, or a hydrophilic spun-bonded nonwoven fabric.
In one embodiment, the absorption layer 30 and the antibacterial layer 10 may be integrally combined by any one of ultrasonic bonding, thermal bonding, sewing, adhesion, and the like. The integrated nano-silver antibacterial composite material can be directly used in disposable sanitary products such as masks, wound plasters, sanitary towels and paper diapers, and the absorption layer 30 faces to the side of the disposable sanitary products for absorbing liquid when in use.
Referring to fig. 3, fig. 3 is a schematic plan view of another antibacterial composite material according to an embodiment of the present disclosure. In this embodiment, the absorbent layer 30 and the antibiotic layer 10 are bonded in a dispersed dot form, and the bonding points 301 between the layers are uniformly distributed on the antibiotic composite material. By the mode, the bonding fixation between the two layers can be ensured, and the air permeability of the antibacterial composite material can be maintained. In one embodiment, in order to prevent the bonding points 301 from weakening the air permeability of the antibacterial composite material, the number of the bonding points 301 arranged per square meter of the nano silver antibacterial composite material is not more than 50. In other embodiments, the absorbent layer and the antibacterial layer can be fixed by pressing with a pressing line, and the pressing line is located at the edge of the antibacterial composite material.
Referring to fig. 4, fig. 4 is a schematic cross-sectional structure view of another antibacterial composite material according to an embodiment of the present disclosure. In this embodiment, the antibacterial composite material includes two antibacterial layers, a first antibacterial layer 11 and a second antibacterial layer 12, which are disposed in a stacked manner. The first antibacterial layer 11 and the second antibacterial layer 12 both include a first surface and a second surface opposite to each other, and the antibacterial layer may be disposed on only one side surface of the antibacterial layer, or may be disposed on both side surfaces of the antibacterial layer. In this embodiment, the first surface of the first antibacterial layer 11, the first surface of the second antibacterial layer 12, and the second surface are coated with the quaternary ammonium salt sterilizing layer 20, and the absorbing layer 30 is compounded on the surface of the first surface sterilizing layer 20 of the first antibacterial layer 11. The antibacterial property of the antibacterial composite material can be improved by laminating the plurality of antibacterial layers and the sterilization layer.
Referring to fig. 5, fig. 5 is a schematic cross-sectional view of another antibacterial composite material according to an embodiment of the present disclosure. In this embodiment, the antibacterial composite material includes an antibacterial layer 10, a sterilizing layer 20, an absorbent layer 30, and an aromatic layer 40.
The aromatic layer 40 is positioned on the surface of the antibacterial layer 10 far away from the absorption layer 30, and the aromatic layer comprises a flavoring agent, so that the nano-silver antibacterial agent composite material has antibacterial and fragrance effects.
Wherein the aromatic layer 40 may be a thin porous layer with added flavoring agentThe agent can be natural plant perfume. The thin porous material layer added with flavoring agent and the thin porous material layer of the antibacterial layer may have the same or different structures, and may be one or more of thin cotton paper layer, non-woven material layer or textile material layer, with a basis weight of 12g/m2～50g/m2The thickness is 150-400 μm.
Referring to fig. 6, fig. 6 is a schematic cross-sectional view of another antibacterial composite material according to an embodiment of the present disclosure. In this embodiment, the antibacterial composite material includes an antibacterial layer 10, a bactericidal layer, an absorbent layer 30, a filter layer 50, and a water-blocking layer 60.
In this embodiment, the sterilization layers, namely the first sterilization layer 21 and the second sterilization layer 22, are disposed on both sides of the antibacterial layer 10, and the sterilization and antibacterial performance of the antibacterial composite material can be improved by disposing two sterilization layers.
In this embodiment, a filter layer 50 is further disposed between the absorption layer 30 and the first sterilization layer 21, and the filter layer 50 may be a melt-blown nonwoven fabric capable of filtering some dust, bacteria, viruses, and the like.
In this embodiment, a water-blocking layer 60 may be further provided on the surface of the second biocidal layer 22 on the side away from the antimicrobial layer 10. The water-blocking layer 60 may be an anti-sticking nonwoven fabric capable of blocking liquids such as water vapor.
In one embodiment, the absorption layer 30, the filter layer 50, the antibacterial layer 10 and the water blocking layer 60 may be combined into a single body by any one of ultrasonic bonding, thermal bonding, sewing and adhesion.
Referring to fig. 7, fig. 7 is a schematic cross-sectional view of still another antibacterial composite material according to an embodiment of the present disclosure. In one embodiment, the absorbent layer 30, the filter layer 50, the antibacterial layer 10 and the water-blocking layer 60 may be combined into a whole by means of a bonding line. The bonding line 70 is positioned at the edge part of the nano silver antibacterial composite material. In other embodiments, the absorbent layer 30, the filter layer 50, the antibacterial layer 10 and the water-blocking layer 60 may be combined into a whole by using the pressing points, and the pressing points are uniformly dispersed on the antibacterial composite material.
In one embodiment, the antimicrobial composite material provided herein can be used in a mask, wherein the absorbent layer is an inner layer of the mask and the water resistant layer is an outer layer of the mask. The waterproof layer can prevent external liquid from permeating into the nano-silver antibacterial composite material, air flow passing through the waterproof layer sequentially flows through the thin pore material layer, the filter layer and the absorption layer, the nano-silver antibacterial agent is dispersed in the air flow, the quaternary ammonium salt sterilization layer is coated on the first surface of the thin pore material layer, and after various bacteria and viruses contained in the air flow are treated by the thin pore material layer, the residual bacteria and viruses in the air flow are efficiently filtered by the filter layer, so that the content of the bacteria and the viruses in the air flow passing through the absorption layer is greatly reduced. The filtering layer is arranged between the thin porous material layer which is dispersed with the nano-silver antibacterial agent and coated with the quaternary ammonium salt sterilizing layer on the first surface and the inner side of the mask, so that the contact probability of a user with the nano-silver antibacterial agent and the quaternary ammonium salt sterilizing layer is reduced, and the use safety performance of the nano-silver antibacterial composite material is improved.
The application also provides a sanitary product, which comprises the nano composite material in any embodiment, and the sanitary product can be a disposable sanitary product such as a mask, a wound plaster, a sanitary towel, a paper diaper and the like. When the antibacterial composite material is used for sanitary towels, paper diapers and the like, the antibacterial composite material can comprise an antibacterial layer, a sterilizing layer, an absorbing layer and an aromatic layer; when the antibacterial composite material is used in a mask or a wound patch, the antibacterial composite material may include an antibacterial layer, a sterilizing layer, an absorbing layer, a filtering layer, a water blocking layer, and the like.
Referring to fig. 8, fig. 8 is a schematic flow chart illustrating a method for preparing an antibacterial composite material according to an embodiment of the present disclosure, in which the method for preparing the antibacterial composite material includes:
s810: the nano silver antibacterial agent is dispersed in the porous material by spraying, dipping or coating to form an antibacterial layer.
S820: and coating the surface of at least one side of the antibacterial layer with a quaternary ammonium salt bactericide by a spraying or roll coating mode to form the antibacterial layer.
For a specific preparation process, please refer to the description of the above embodiments, which is not repeated herein.
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. An antimicrobial composite, comprising:
the antibacterial layer is a porous material layer and comprises a nano-silver antibacterial agent;
and the sterilizing layer is at least positioned on one side surface of the antibacterial layer and comprises a quaternary ammonium salt bactericide.
2. The antimicrobial composite of claim 1,
the addition amount of the nano silver antibacterial agent in the porous material layer is 1-50%; the weight ratio of the quaternary ammonium salt sterilizing layer to the porous material layer is 0.05-2%.
3. The antimicrobial composite of claim 1,
the nano silver antibacterial agent comprises at least one of a nano silver ion antibacterial agent and a nano silver simple substance antibacterial agent, wherein the nano silver ion antibacterial agent is an antibacterial agent with nano silver ions attached to a carrier, and the nano silver simple substance is nano silver powder;
the quaternary ammonium salt bactericide comprises dodecyl trimethyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide, cyano quaternary ammonium salt, dialkyl quaternary ammonium bromide and at least one of polyazacyclo quaternary ammonium salt, polyquaternary ammonium salt and diquaternary ammonium salt.
4. The antimicrobial composite of claim 3,
the nano silver ion antibacterial agent has a particle size of 20-400 nm, the concentration of nano silver ions in the nano silver ion antibacterial agent is 50-5000 ppm, and the particle size of the nano silver simple substance antibacterial agent is 100-10 nm.
5. The antimicrobial composite of claim 1,
the basis weight of the porous material layer is 12g/m2～50g/m2The thickness is 150-400 μm.
6. The antimicrobial composite of claim 1, further comprising:
the absorption layer is positioned on the surface of one side of the sterilization layer, which is far away from the antibacterial layer, the absorption layer is a hydrophilic layer, and the absorption layer and the antibacterial layer are fixedly combined in a pressing point or pressing line mode.
7. The antimicrobial composite of claim 6, further comprising:
the aromatic layer is positioned on the surface of one side of the antibacterial layer, which is far away from the absorption layer, and the aromatic layer comprises a flavoring agent; and/or
A filter layer located between the sterilizing layer and the absorbing layer; and/or
And the water resisting layer is positioned on the surface of one side of the antibacterial layer, which is far away from the absorption layer.
8. The antimicrobial composite of claim 6,
the porous material layer is one or more of a cotton paper layer, a non-woven material layer or a textile material layer;
the absorbing layer is one of household paper, spunlace non-woven fabric, hydrophilic hot air non-woven fabric or hydrophilic spun-bonded non-woven fabric.
9. A sanitary article, characterized in that it comprises an antimicrobial composite according to any one of claims 1-8.
10. A preparation method of an antibacterial composite material is characterized by comprising the following steps:
dispersing the nano-silver antibacterial agent in the porous material by using a spraying, dipping or coating mode to form an antibacterial layer;
and coating a quaternary ammonium salt bactericide on at least one side surface of the antibacterial layer by a spraying or roll coating mode to form the antibacterial layer.
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Application publication date: 20210914 |