EP4355832A1 - Water-based paint and antimicrobial leather prepared thereby - Google Patents
Water-based paint and antimicrobial leather prepared therebyInfo
- Publication number
- EP4355832A1 EP4355832A1 EP22732042.1A EP22732042A EP4355832A1 EP 4355832 A1 EP4355832 A1 EP 4355832A1 EP 22732042 A EP22732042 A EP 22732042A EP 4355832 A1 EP4355832 A1 EP 4355832A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- antimicrobial
- based paint
- antimicrobial agent
- paint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 239000003973 paint Substances 0.000 title claims abstract description 88
- 230000000845 anti-microbial effect Effects 0.000 title claims abstract description 60
- 239000010985 leather Substances 0.000 title claims abstract description 26
- 239000004599 antimicrobial Substances 0.000 claims abstract description 68
- 229920000620 organic polymer Polymers 0.000 claims abstract description 43
- 239000010410 layer Substances 0.000 claims abstract description 37
- 239000002344 surface layer Substances 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 9
- 229910021645 metal ion Inorganic materials 0.000 claims abstract description 9
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 9
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 29
- 229910052709 silver Inorganic materials 0.000 claims description 25
- 239000004332 silver Substances 0.000 claims description 25
- 239000002245 particle Substances 0.000 claims description 19
- 229920005989 resin Polymers 0.000 claims description 19
- 239000011347 resin Substances 0.000 claims description 19
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 16
- -1 silver ions Chemical class 0.000 claims description 16
- 229920005749 polyurethane resin Polymers 0.000 claims description 15
- 239000004814 polyurethane Substances 0.000 claims description 14
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 13
- 229910052725 zinc Inorganic materials 0.000 claims description 13
- 239000011701 zinc Substances 0.000 claims description 13
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 12
- 150000002500 ions Chemical class 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 239000012752 auxiliary agent Substances 0.000 claims description 9
- 229910017052 cobalt Inorganic materials 0.000 claims description 8
- 239000010941 cobalt Substances 0.000 claims description 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 claims description 7
- 239000004925 Acrylic resin Substances 0.000 claims description 6
- 229920000178 Acrylic resin Polymers 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 5
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims description 4
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 claims description 4
- 229910001429 cobalt ion Inorganic materials 0.000 claims description 4
- XLJKHNWPARRRJB-UHFFFAOYSA-N cobalt(2+) Chemical compound [Co+2] XLJKHNWPARRRJB-UHFFFAOYSA-N 0.000 claims description 4
- 229910001431 copper ion Inorganic materials 0.000 claims description 4
- 229910001453 nickel ion Inorganic materials 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 abstract description 19
- 238000011068 loading method Methods 0.000 abstract description 7
- 150000002739 metals Chemical class 0.000 abstract description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 58
- 229920000915 polyvinyl chloride Polymers 0.000 description 58
- 238000012360 testing method Methods 0.000 description 23
- 230000000052 comparative effect Effects 0.000 description 21
- 239000002649 leather substitute Substances 0.000 description 20
- 238000002360 preparation method Methods 0.000 description 13
- 238000002156 mixing Methods 0.000 description 11
- 239000002518 antifoaming agent Substances 0.000 description 9
- 229920002635 polyurethane Polymers 0.000 description 9
- 239000002994 raw material Substances 0.000 description 9
- 150000001412 amines Chemical class 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 238000011056 performance test Methods 0.000 description 8
- 239000002002 slurry Substances 0.000 description 8
- 239000002562 thickening agent Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 229920002397 thermoplastic olefin Polymers 0.000 description 7
- 238000005187 foaming Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000032683 aging Effects 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 239000003292 glue Substances 0.000 description 5
- 239000011265 semifinished product Substances 0.000 description 5
- 239000003381 stabilizer Substances 0.000 description 5
- 238000004049 embossing Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002530 phenolic antioxidant Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 239000006084 composite stabilizer Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 239000004611 light stabiliser Substances 0.000 description 3
- FJQXCDYVZAHXNS-UHFFFAOYSA-N methadone hydrochloride Chemical compound Cl.C=1C=CC=CC=1C(CC(C)N(C)C)(C(=O)CC)C1=CC=CC=C1 FJQXCDYVZAHXNS-UHFFFAOYSA-N 0.000 description 3
- 239000008029 phthalate plasticizer Substances 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000012847 fine chemical Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- IMSODMZESSGVBE-UHFFFAOYSA-N 2-Oxazoline Chemical compound C1CN=CO1 IMSODMZESSGVBE-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 208000025721 COVID-19 Diseases 0.000 description 1
- 241000711573 Coronaviridae Species 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- DMKSVUSAATWOCU-HROMYWEYSA-N loteprednol etabonate Chemical compound C1CC2=CC(=O)C=C[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@@](C(=O)OCCl)(OC(=O)OCC)[C@@]1(C)C[C@@H]2O DMKSVUSAATWOCU-HROMYWEYSA-N 0.000 description 1
- 229920003145 methacrylic acid copolymer Polymers 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 125000005375 organosiloxane group Chemical group 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 150000007970 thio esters Chemical class 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/08—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing solids as carriers or diluents
- A01N25/10—Macromolecular compounds
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/34—Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P1/00—Disinfectants; Antimicrobial compounds or mixtures thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/12—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to leather
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/02—Emulsion paints including aerosols
- C09D5/024—Emulsion paints including aerosols characterised by the additives
- C09D5/025—Preservatives, e.g. antimicrobial agents
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0059—Organic ingredients with special effects, e.g. oil- or water-repellent, antimicrobial, flame-resistant, magnetic, bactericidal, odour-influencing agents; perfumes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06N3/042—Acrylic polymers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06N3/06—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with polyvinylchloride or its copolymerisation products
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2502/00—Acrylic polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2503/00—Polyurethanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2504/00—Epoxy polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/58—Seat coverings
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1671—Resistance to bacteria, mildew, mould, fungi
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/28—Artificial leather
Definitions
- the present invention relates to a water-based paint and an antimicrobial leather prepared thereby.
- the water-based paint and the antimicrobial leather can be used in the automotive field.
- leather is widely used as a surface decoration material in various fields such as automotives and home decoration.
- Common leathers include genuine leathers, polar artificial leathers such as a polyvinyl chloride (referred to as PVC below) artificial leather, and a nonpolar artificial leather such as a thermoplastic polyolefin elastomer (TPO) artificial leather, etc., wherein the PVC artificial leather is an artificial leather prepared by polyvinyl chloride as a resin raw material, and the TPO artificial leather is an artificial leather prepared by a thermoplastic polyolefin as a resin raw material.
- PVC polyvinyl chloride
- TPO thermoplastic polyolefin elastomer
- leathers are widely used in door panels, dashboards, armrests, headrests and seats of automobiles.
- the technical problem to be solved by the present invention is to provide a water-based paint and an antimicrobial leather prepared thereby, wherein the antimicrobial leather has better antimicrobial performance while ensuring the abrasion resistance and noise resistance.
- the present invention can be achieved by the technical solution as follows: a water-based paint for preparing leathers, comprising an organic polymer and an antimicrobial agent loaded on the organic polymer, wherein the antimicrobial agent is a metal and/or a metal ion and/or a metal oxide.
- the applicant has unexpectedly found that by loading an antimicrobial agent of a metal and/or a metal ion and/or a metal oxide, onto an organic polymer, the organic polymer can allow the antimicrobial agent to be uniformly dispersed in the water-based paint without flocculation and sedimentation, and can also ensure the slow release of the antimicrobial agent in the paint layer prepared by the water-based paint; which effectively improves the antimicrobial performance of leathers prepared by the water-based paint and, meanwhile, can also ensure the abrasion resistance and noise resistance of the leathers.
- the leathers may be genuine leathers, PVC artificial leathers, TPO artificial leathers, PU artificial leathers and the like.
- the organic polymer as an organic carrier can be one, two or three of a polyurethane resin, an acrylic resin, and an epoxy resin.
- the particle size of the organic polymer is preferably 50-500 nm, and more preferably 440-500 nm. If the particle size of the organic polymer is too large, the organic polymer with a larger particle size has poor dispersibility itself and the antimicrobial agent tends to be wrapped by the molecular chain of an organic polymer with a larger particle size, thus reducing the antimicrobial performance; if the particle size of the organic polymer is too small, the strength of the water-based paint after film-formation will be decreased.
- the organic polymer in the present invention may be Permutex EVO-WF-3649/A or Permutex WF- 43-005, both of which are available from the Stahl Coatings and Fine Chemicals (Suzhou) Co., Ltd., Suzhou, China.
- the antimicrobial agent is one, two or more of silver, silver ions, oxides of silver, zinc, zinc ions, oxides of zinc, copper, copper ions, oxides of copper, nickel, nickel ions, oxides of nickel, cobalt, cobalt ions, oxides of cobalt, lead, lead ions and oxides of lead.
- the antimicrobial agent is preferably silver and ions thereof, zinc and ions thereof, and copper and ions thereof, wherein the antimicrobial effect of silver and ions thereof is the best and the safest.
- the water-based paint preferably comprises 0.3-10 %oo of the antimicrobial agent, based on the total weight of the water-based paint.
- the water-based paint comprises, based on the total weight of the water-based paint, 0.2- 3%oo of the antimicrobial agent, for example 0.2%oo, 0.3%oo, 0.4%oo, 0.5%oo, 0.6%oo,
- loading refers to the antimicrobial agent being fixed on the organic polymer by a certain treatment process, making the antimicrobial agent difficult to separate from the organic polymer in the water-based paint, and an ordinary person skilled in the art can select conventional treatment processes for a treatment.
- the organic polymer and the antimicrobial agent are prepared as an aqueous antimicrobial agent solution, and then the water-based paint is prepared; when the antimicrobial agent is silver ions, the aqueous antimicrobial agent solution comprises, based on the total weight of the aqueous antimicrobial agent solution, 0.1- 3% of the antimicrobial agent, 1-30% of an organic polymer, and 69-98.5% of water.
- the water-based paint comprises, based on the total weight of the water-based paint, 50-98% of a water-based resin, 1-20% of the aqueous antimicrobial agent solution, 1-10% of a curing agent, and 0-25% of an auxiliary agent; more preferably, the water-based paint comprises 60-95% of the water-based resin, 2-10% of the aqueous antimicrobial agent solution, 1-10% of the curing agent and 0-25% of the auxiliary agent.
- the water-based resin refers to a mixture of a resin and water, and the water-based resin can be one, two or three of a water-based polyurethane resin, a water-based acrylic resin, and a water-based epoxy resin.
- the particle size of the water-based resin is preferably 50-900 nm.
- the solid content of the water-based resin is 10-60%, for example, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, and 60% or in a range between any two of these numerical values, and more preferably 15-
- the water-based resins suitable for the invention can be Permutex EVO-WF -3649/A or Permutex WF -43-005, both of which are available from the Stahl Coatings and Fine Chemicals (Suzhou) Co., Ltd., Suzhou, China.
- the curing agent can be any suitable curing agents that are suitable for preparing water-based paints, and a person skilled in the art would have known how to choose, according to specific application situations and requirements, suitable curing agents, for example, polyisocyanate curing agents, polycarbodiimide curing agents, and oxazoline curing agents, and these curing agents can be used alone or in combination.
- suitable curing agents for example, polyisocyanate curing agents, polycarbodiimide curing agents, and oxazoline curing agents, and these curing agents can be used alone or in combination.
- the curing agents that are suitable for the invention can be an Aquolin 166 isocyanate curing agent, which is available from Wanhua Chemical Group Co., Ltd, Yantai, China.
- the auxiliary agent may be an antifoaming agent, a leveling agent, a thickener, a hand-feel agent, a stabilizer, etc., and a person skilled in the art would have known how to select the auxiliary agent to be added according to actual needs.
- the antifoaming agent can be any suitable antifoaming agents that are suitable for manufacturing water-based paints. A person skilled in the art would have known how to select a suitable antifoaming agent according to specific application situations and requirements.
- the antifoaming agents that are suitable for the invention can be an organosilicone antifoaming agent, a polyether antifoaming agent, and a mineral oil antifoaming agent, etc.
- the antifoaming agents that are suitable for the present invention can be BYK093 which is available from German BYK Additives & Instruments and Tego Airex 902W which is available from German Evonik Industries AG.
- the leveling agent can be any suitable leveling agents that are suitable for manufacturing water-based paints. A person skilled in the art would have known how to select a suitable leveling agent according to specific application situations and requirements.
- the leveling agents that are suitable for the invention may be selected from acrylic leveling agents, organosilicone leveling agents and fluorocarbon leveling agents.
- the organosilicone leveling agents can also be selected from, for example, silicone oil, polydimethylsiloxane, polyether polyester modified organosiloxane, alkyl modified organosiloxane, end group modified organosilicone, and reactive leveling agents, etc.
- the leveling agents that are suitable for the invention can be BYK333 and BYK306, which are available from German BYK Additives & Instruments.
- the thickener can be any suitable thickeners that are applicable for preparing water- based paints. A person skilled in the art would have known how to select a suitable thickener according to specific application situations and requirements.
- the thickener in the present invention can be a polyurethane thickener or a copolymer of methacrylic acid and acrylate.
- the thickener that is suitable for the invention can be PUR 48, a water-based polyurethane thickener, which is commercially available from MUNZING, Germany.
- the hand-feel agent can be any suitable hand-feel agents that are applicable for preparing water-based paints. A person skilled in the art would have known how to select a suitable hand-feel agent according to specific application situations and requirements.
- polysiloxane and for example, a wax powder, with product no. 920, which is available from BYK Additives & Instruments.
- the stabilizer is used to prevent oxidation and discoloration, and increase the ageing resistance of water-based paints.
- a person skilled in the art would have known how to select a suitable stabilizer according to specific application situations and requirements.
- the stabilizer in the invention can be selected from one, two or more of hindered amine stabilizers, hindered phenolic antioxidants, thioesters, phosphites, and thioethers.
- an antimicrobial leather comprising a paint layer, wherein the paint layer is prepared by the water-based paint described above.
- the technical solution as follows can also be used: an antimicrobial leather comprising a surface layer and a paint layer, wherein the paint layer comprises an organic polymer and an antimicrobial agent loaded on the organic polymer, wherein the antimicrobial agent is a metal and/or a metal ion and/or a metal oxide.
- the surface layer is a genuine leather, a PVC surface layer, a TPO surface layer, or a PU surface layer.
- the organic polymer as an organic carrier can be one, two or three of a polyurethane resin, an acrylic resin, and an epoxy resin.
- the particle size of the organic polymer is preferably 50-500 nm, and more preferably 440-500 nm.
- the particle size of the organic polymer is too large, on the one hand, the organic polymer with a larger particle size has poor dispersibility itself, and on the other hand, the antimicrobial agent tends to be wrapped by the molecular chain of an organic polymer with a larger particle size, thus reducing the antimicrobial performance; if the particle size of the organic polymer is too small, the strength of the water-based paint after forming films will be decreased.
- the antimicrobial agent is one, two or more of silver, silver ions, oxides of silver, zinc, zinc ions, oxides of zinc, copper, copper ions, oxides of copper, nickel, nickel ions, oxides of nickel, cobalt, cobalt ions, oxides of cobalt, lead, lead ions and oxides of lead.
- the antimicrobial agent is preferably silver and ions thereof, zinc and ions thereof, and copper and ions thereof, wherein the antimicrobial effect of silver and ions thereof is the best and the safest.
- loading refers to the antimicrobial agent being fixed on the organic polymer by a certain treatment process, making the antimicrobial agent difficult to separate from the organic polymer in the water-based paint, and an ordinary person skilled in the art can select conventional treatment processes for a treatment.
- the present invention has the following beneficial effects: it has been unexpectedly found that the present invention, by loading an antimicrobial agent of a metal and/or metal ions and/or metal oxides, onto an organic polymer and preparing an antimicrobial leather by a water-based paint comprising the antimicrobial agent and the organic polymer, can not only improve the antimicrobial performance of the antimicrobial leather, but also ensure the abrasion resistance and noise resistance of the antimicrobial leather. [Detailed Description of Embodiments] The present invention will be further illustrated below by examples and comparative examples. Example 1
- the present example involves the preparation of a PVC artificial leather
- the preparation method of the PVC artificial leather used in this example is a convention method in the art, and a person skilled in the art would have clearly known how to select specific apparatuses, process steps and conditions; therefore, the following description of the preparation process only involves the critical steps and conditions for one of the preparation methods.
- Step I material mixing
- a PVC powder 50 parts of a PVC powder, 45 parts of a phthalate plasticizer, 2 parts of a calcium and zinc composite stabilizer, 1 part of an aluminum hydroxide auxiliary agent, 1 part of a hindered amine light stabilizer, 1 part of a hindered phenolic antioxidant and 3 parts of a pigment are selected as raw materials, the raw materials are put into a mixing tank, followed by mechanical mixing, and vacuumizing until achieving uniform mixing, thus to obtain the PVC dense layer slurry.
- PVC foaming layer slurry 50 parts of a PVC powder, 2 parts of a foaming agent, 45 parts of a phthalate plasticizer, 2 parts of a calcium and zinc composite stabilizer, 1 part of an aluminum hydroxide auxiliary agent, 1 part of a hindered amine light stabilizer, 1 part of a hindered phenolic antioxidant and 1 part of a pigment are selected as raw materials, the raw materials are put into a mixing tank, followed by mechanical mixing, and vacuumizing until achieving uniform mixing, thus to obtain the PVC foaming layer slurry.
- PVC glue layer slurry 50 parts of a PVC powder, 45 parts of a phthalate plasticizer, 2 parts of a calcium and zinc composite stabilizer, 1 part of an aluminum hydroxide auxiliary agent, 1 part of a hindered amine light stabilizer and 1 part of a hindered phenolic antioxidant are selected as raw materials, the raw materials are put into a mixing tank, followed by mechanical mixing, and vacuumizing until achieving uniform mixing, thus to obtain the PVC glue layer slurry.
- Step II the preparation of PVC surface layer and combination with the base fabric
- the PVC dense layer slurry is coated onto a release paper and sent to a first-stage oven for plasticization and shaping. Then the plasticized and shaped PVC dense layer is coated with the PVC foaming layer, and sent into a second-stage oven for plasticization and shaping, so as to obtain the PVC surface layer.
- the plasticized and shaped PVC foaming layer is roller-coated with the PVC glue layer slurry, then a polyester warp knitted fabric is combined therewith and is sent to a third- stage oven for final shaping, so as to obtain a PVC artificial leather coating material.
- the PVC artificial leather coating material is separated from the release paper, and the two are rolled up individually.
- the rolled-up PVC artificial leather coating material is sent to a printing stage.
- Step III the preparation of the water-based polyurethane paint
- the raw materials of the water-based polyurethane paint are put into a paint bucket for mechanical mixing until uniformly mixed, so as to obtain the water-based polyurethane paint.
- Step IV printing After the rolled-up PVC artificial leather coating material in step II is unrolled, the water- based polyurethane paint prepared in step III is printed onto the PVC dense layer of the PVC artificial leather coating material. After 3 layers of the water-based polyurethane paint are printed by a printing machine, the same is sent to an oven for drying, then cooled and rolled up, so as to obtain a printed semi-finished product of the rolled-up PVC artificial leather. The printed semi-finished product of the PVC artificial leather is sent to an embossing stage.
- Step V embossing
- the above-mentioned rolled-up printed semi-finished product of the rolled-up PVC artificial leather is unrolled.
- the surface of the printed semi-finished product of the PVC artificial leather is softened by means of heating, and by using an embossing roller, the pattern on the surface of the embossing roller is imparted onto the side of the PVC dense layer of the printed semi-finished product of the PVC artificial leather by pressure. After cooling same, a PVC artificial leather with patterns on the surface is obtained.
- Examples 2-9 are also the preparation of PVC artificial leathers.
- the preparation processes of PVC artificial leathers, the components and contents of the PVC dense layer, the components and contents of the PVC foaming layer and the components and contents of the PVC glue layer, and the selection of the basic fabric layer therein are all completely the same as example 1 , and the difference only lies in the formulation of the paint layer. See table 1-1, table 1-2 and table 1-3 for more details.
- Comparative examples 1-8 are also the preparation of PVC artificial leathers.
- the preparation processes of PVC artificial leathers, the components and contents of the PVC dense layer, the components and contents of the PVC foaming layer and the components and contents of the PVC glue layer, and the selection of the basic fabric layer therein are all completely the same as example 1 , and the difference only lies in the formulation of the paint layer. See table 1-1, table 1-2 and table 1-3 for more details.
- Table 1-1
- table 1-1 The parts in table 1-1 , table 1-2 and table 1-3 are parts by weight, and the reference parts are all the same.
- Abrasion resistance test The surface abrasion resistance tests of the PVC artificial leathers prepared in examples 1-9 and comparative examples 1-8 are performed, with a load of 1 ,000 grams and the number of tests of 1 ,000 times selected, according to the General Motor Standard
- the antimicrobial performance test on the initial samples The surface antimicrobial performance tests of the initial samples of PVC artificial leathers prepared in examples 1-9 and comparative examples 1-8 are performed according to the National Standard GB/T31402-2015, and the test results are shown in table 2-1 , table 2-2, table 2-3 and table 2-4.
- the antimicrobial performance test after heat aging The initial samples are placed in an oven at 120°C for 21 days, and the surface antimicrobial performance tests after ageing of the PVC artificial leathers prepared in examples 1-9 and comparative examples 1-8 are performed according to the General Motor Standard GMW14122. The test results are shown in table 2-1 , table 2-2, table 2-3 and table 2-4.
- the antimicrobial performance test after the Martindale abrasion resistance The surface antimicrobial performance tests after abrasion of the PVC artificial leathers prepared in examples 1-9 and comparative examples 1-8 are performed, with the number of abrasions of 20,000 selected, according to the National Standard GB/T19089-2003, and the test results are shown in table 2-1 , table 2-2, table 2-3 and table 2-4.
- Light resistance test The surface antimicrobial performance tests after abrasion of the PVC artificial leathers prepared in examples 1-9 and comparative examples 1-8 are performed, with the number of abrasions of 20,000 selected, according to the National Standard GB/T19089-2003, and the test results are shown in table 2-1 , table 2-2, table 2-3 and table 2-4.
- the initial samples are placed in a test device and exposed to light for 5 cycles, and the light resistances of the PVC artificial leathers prepared in examples 1-9 and comparative examples 1-8 are performed according to the Volkswagen Standard PV1303.
- the test results are shown in table 2-1 , table 2-2, table 2-3 and table 2-4.
- Amine resistance test The amine resistance tests of the PVC artificial leathers prepared in examples 1-9 and comparative examples 1-8 are performed according to the Volkswagen Standard PV3944, and the test results are shown in table 2-1 , table 2-2, table 2-3 and table 2-4.
- example 2 example 4, example 5 and comparative example 7 that adding the antimicrobial agent of silver ions, zinc ions or zinc oxide into the water-based paint and loading the antimicrobial agent on the organic polymer polyurethane resin can significantly improve the antimicrobial performance of the PVC artificial leathers prepared thereby, and the noise resistance and abrasion resistance of the PVC artificial leathers also can reach the standards. Based on this, a person skilled in the art could reasonably learn that metals, metal ions and metal oxides can all be loaded onto the organic polymers to achieve similar technical effects.
- example 2 it can be seen from the test results of example 2, example 4, example 5 and comparative example 8 that, compared with the antimicrobial agent loaded onto an inorganic carrier, by loading the antimicrobial agent onto an organic polymer, the surface of the PVC artificial leathers has significantly improved antimicrobial performance, noise resistance and abrasion resistance, and unexpected technical effects are achieved.
- the critera of the antimicrobial performance therein are all relatively poor; if the content of silver ions is too large, for example, in comparative example 2 with a content of 3.5%o, although some of the antimicrobial performance reaches the standards (for initial samples, > 99.9%; for samples after heat aging, > 99.9%), the antimicrobial performance of the samples after the noise resistance, the abrasion resistance and the Martindale abrasion resistance are all relatively poor.
- the paint layer prepared by the water-based paint is relatively thin, and although the antimicrobial performance of the initial sample and the sample after heat ageing can reach the standard, the antimicrobial performance of the sample after Martindale abrasion resistance can not reach the standard; if the solid content of the main resin, the polyurethane resin, is too large, (for example, comparative example 4), the paint layer prepared by the water-based paint is relatively thick, and the antimicrobial performance of the antimicrobial leathers in various aspects cannot reach the standards.
- the particle size of the carrier, the water-based polyurethane resin, in the water-based paint has an influence on all of the antimicrobial performance, the noise resistance, and the abrasion resistance of the antimicrobial leathers prepared by the water-based paint. If the particle size of the carrier, the water-based polyurethane resin, is too small (for example, comparative example 5), the antimicrobial performance and abrasion resistance of the antimicrobial leathers in various aspects cannot reach the standards; if the particle size of the carrier, the water-based polyurethane resin, is too large (for example, comparative example 6), the antimicrobial performance of the antimicrobial leathers in various aspects cannot reach the standards.
- example 9 when the particle size of the carrier, the water-based polyurethane resin, is in a certain range, the particle size of the carrier polyurethane resin will not have an obvious influence on the antimicrobial performance, the light resistance and the amine resistance, but will have a more obvious influence on the noise resistance and the abrasion resistance.
- the overall performance of example 9 is the best.
- Examples 1-9 are all PVC artificial leathers. On this basis, a person skilled in the art could reasonably learn that the above-mentioned water-based polyurethane paint can also be applied to genuine leathers, TPO artificial leathers, PU leathers etc., to achieve similar technical effects.
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Abstract
The present invention discloses a water-based paint and an antimicrobial leather prepared thereby. The antimicrobial leather comprises a surface layer and a paint layer. The surface layer may be a genuine leather, a PVC surface layer, a TPO surface layer, a PU surface layer, and the like. The paint layer is prepared by the water-based paint, and the water-based paint comprises an organic polymer and an antimicrobial agent loaded on the organic polymer, wherein the antimicrobial agent is a metal and/or a metal ion and/or a metal oxide. It has been surprisingly found that the present invention can not only improve the antimicrobial performance of the antimicrobial leather prepared by the water-based paint, but also ensure the abrasion resistance and noise resistance of the antimicrobial leather by loading the antimicrobial agent of metals and/or metal ions and/or metal oxides, on the organic polymer.
Description
Description
Title of the Invention
Water-based paint and antimicrobial leather prepared thereby
[Technical Field]
The present invention relates to a water-based paint and an antimicrobial leather prepared thereby. The water-based paint and the antimicrobial leather can be used in the automotive field.
[Background art]
Leather is widely used as a surface decoration material in various fields such as automotives and home decoration. Common leathers include genuine leathers, polar artificial leathers such as a polyvinyl chloride (referred to as PVC below) artificial leather, and a nonpolar artificial leather such as a thermoplastic polyolefin elastomer (TPO) artificial leather, etc., wherein the PVC artificial leather is an artificial leather prepared by polyvinyl chloride as a resin raw material, and the TPO artificial leather is an artificial leather prepared by a thermoplastic polyolefin as a resin raw material.
Taking the automotive field as an example, leathers are widely used in door panels, dashboards, armrests, headrests and seats of automobiles. However, after a long period of use, a lot of microbes will appear on leathers, especially on headrests and seats, which seriously affects the health and safety of drivers. Therefore, the development of antimicrobial leathers has been a relatively important sector in the leather field. Particularly, since the global outbreak of the coronavirus (COVID-19) pandemic in 2020, people have paid more attention to antimicrobial leathers, but the leathers on the market cannot satisfy the requirement from people in view of antimicrobial performance.
Therefore, it is desired to provide a new technical solution to solve the technical problem mentioned above.
[Content of the invention]
The technical problem to be solved by the present invention is to provide a water-based paint and an antimicrobial leather prepared thereby, wherein the antimicrobial leather has better antimicrobial performance while ensuring the abrasion resistance and noise resistance.
To solve the technical problem mentioned above, the present invention can be achieved by the technical solution as follows: a water-based paint for preparing leathers, comprising an organic polymer and an antimicrobial agent loaded on the organic polymer, wherein the antimicrobial agent is a metal and/or a metal ion and/or a metal oxide.
By a lot of experiments, the applicant has unexpectedly found that by loading an antimicrobial agent of a metal and/or a metal ion and/or a metal oxide, onto an organic polymer, the organic polymer can allow the antimicrobial agent to be uniformly dispersed in the water-based paint without flocculation and sedimentation, and can also ensure the slow release of the antimicrobial agent in the paint layer prepared by the water-based paint; which effectively improves the antimicrobial performance of leathers prepared by the water-based paint and, meanwhile, can also ensure the abrasion resistance and noise resistance of the leathers. The leathers may be genuine leathers, PVC artificial leathers, TPO artificial leathers, PU artificial leathers and the like.
In the present invention, the organic polymer as an organic carrier can be one, two or three of a polyurethane resin, an acrylic resin, and an epoxy resin. The particle size of the organic polymer is preferably 50-500 nm, and more preferably 440-500 nm. If the particle size of the organic polymer is too large, the organic polymer with a larger particle
size has poor dispersibility itself and the antimicrobial agent tends to be wrapped by the molecular chain of an organic polymer with a larger particle size, thus reducing the antimicrobial performance; if the particle size of the organic polymer is too small, the strength of the water-based paint after film-formation will be decreased. The organic polymer in the present invention may be Permutex EVO-WF-3649/A or Permutex WF- 43-005, both of which are available from the Stahl Coatings and Fine Chemicals (Suzhou) Co., Ltd., Suzhou, China.
In the present invention, the antimicrobial agent is one, two or more of silver, silver ions, oxides of silver, zinc, zinc ions, oxides of zinc, copper, copper ions, oxides of copper, nickel, nickel ions, oxides of nickel, cobalt, cobalt ions, oxides of cobalt, lead, lead ions and oxides of lead. The antimicrobial agent is preferably silver and ions thereof, zinc and ions thereof, and copper and ions thereof, wherein the antimicrobial effect of silver and ions thereof is the best and the safest. When the antimicrobial agent is zinc ions, the water-based paint preferably comprises 0.3-10 %oo of the antimicrobial agent, based on the total weight of the water-based paint. When the antimicrobial agent is silver ions, the water-based paint comprises, based on the total weight of the water-based paint, 0.2- 3%oo of the antimicrobial agent, for example 0.2%oo, 0.3%oo, 0.4%oo, 0.5%oo, 0.6%oo,
0.7%oo, 0.8%oo, 0.9%oo, 1 %oo, 1.2%oo, 1.4%oo, 1.6%oo, 1.8%oo, 2%oo, 2.2%oo, 2.5%oo, 2.7%oo, 2.8%oo, and 3%oo, or the antimicrobial agent in a range between any
two of these numerical values, preferably 0.3-2.5%oo of the antimicrobial agent, more preferably 0.3-2%oo of the antimicrobial agent.
In the present invention, loading refers to the antimicrobial agent being fixed on the organic polymer by a certain treatment process, making the antimicrobial agent difficult to separate from the organic polymer in the water-based paint, and an ordinary person skilled in the art can select conventional treatment processes for a treatment.
In the present invention, the organic polymer and the antimicrobial agent are prepared as an aqueous antimicrobial agent solution, and then the water-based paint is prepared; when the antimicrobial agent is silver ions, the aqueous antimicrobial agent solution comprises, based on the total weight of the aqueous antimicrobial agent solution, 0.1- 3% of the antimicrobial agent, 1-30% of an organic polymer, and 69-98.5% of water. Further, the water-based paint comprises, based on the total weight of the water-based paint, 50-98% of a water-based resin, 1-20% of the aqueous antimicrobial agent solution, 1-10% of a curing agent, and 0-25% of an auxiliary agent; more preferably, the water-based paint comprises 60-95% of the water-based resin, 2-10% of the aqueous antimicrobial agent solution, 1-10% of the curing agent and 0-25% of the auxiliary agent. In the present invention, the water-based resin refers to a mixture of a resin and water,
and the water-based resin can be one, two or three of a water-based polyurethane resin, a water-based acrylic resin, and a water-based epoxy resin. The particle size of the water-based resin is preferably 50-900 nm. The solid content of the water-based resin is 10-60%, for example, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, and 60% or in a range between any two of these numerical values, and more preferably 15-
30%. A person skilled in the art would have known how to select suitable water-based resins according to the actual needs and application situations to prepare the water- based paint of the invention, and for example, the water-based resins suitable for the invention can be Permutex EVO-WF -3649/A or Permutex WF -43-005, both of which are available from the Stahl Coatings and Fine Chemicals (Suzhou) Co., Ltd., Suzhou, China.
In the present invention, the curing agent can be any suitable curing agents that are suitable for preparing water-based paints, and a person skilled in the art would have known how to choose, according to specific application situations and requirements, suitable curing agents, for example, polyisocyanate curing agents, polycarbodiimide curing agents, and oxazoline curing agents, and these curing agents can be used alone or in combination. For example, the curing agents that are suitable for the invention can be an Aquolin 166 isocyanate curing agent, which is available from Wanhua Chemical Group Co., Ltd, Yantai, China.
In the present invention, the auxiliary agent may be an antifoaming agent, a leveling agent, a thickener, a hand-feel agent, a stabilizer, etc., and a person skilled in the art would have known how to select the auxiliary agent to be added according to actual needs.
The antifoaming agent can be any suitable antifoaming agents that are suitable for manufacturing water-based paints. A person skilled in the art would have known how to select a suitable antifoaming agent according to specific application situations and requirements. The antifoaming agents that are suitable for the invention can be an organosilicone antifoaming agent, a polyether antifoaming agent, and a mineral oil antifoaming agent, etc. For example, the antifoaming agents that are suitable for the present invention can be BYK093 which is available from German BYK Additives & Instruments and Tego Airex 902W which is available from German Evonik Industries AG.
The leveling agent can be any suitable leveling agents that are suitable for manufacturing water-based paints. A person skilled in the art would have known how to select a suitable leveling agent according to specific application situations and requirements. The leveling agents that are suitable for the invention may be selected from acrylic leveling agents, organosilicone leveling agents and fluorocarbon leveling agents. The organosilicone leveling agents can also be selected from, for example, silicone oil, polydimethylsiloxane, polyether polyester modified organosiloxane, alkyl modified organosiloxane, end group modified organosilicone, and reactive leveling agents, etc. For example, the leveling agents that are suitable for the invention can be BYK333 and BYK306, which are available from German BYK Additives & Instruments.
The thickener can be any suitable thickeners that are applicable for preparing water- based paints. A person skilled in the art would have known how to select a suitable thickener according to specific application situations and requirements. The thickener in the present invention can be a polyurethane thickener or a copolymer of methacrylic
acid and acrylate. For example, the thickener that is suitable for the invention can be PUR 48, a water-based polyurethane thickener, which is commercially available from MUNZING, Germany. The hand-feel agent can be any suitable hand-feel agents that are applicable for preparing water-based paints. A person skilled in the art would have known how to select a suitable hand-feel agent according to specific application situations and requirements. For example, polysiloxane, and for example, a wax powder, with product no. 920, which is available from BYK Additives & Instruments.
The stabilizer is used to prevent oxidation and discoloration, and increase the ageing resistance of water-based paints. A person skilled in the art would have known how to select a suitable stabilizer according to specific application situations and requirements. The stabilizer in the invention can be selected from one, two or more of hindered amine stabilizers, hindered phenolic antioxidants, thioesters, phosphites, and thioethers.
To solve the technical problem mentioned above, in the present invention, the technical solution as follows can also be used: an antimicrobial leather comprising a paint layer, wherein the paint layer is prepared by the water-based paint described above.
To solve the technical problem mentioned above, in the present invention the technical solution as follows can also be used: an antimicrobial leather comprising a surface layer and a paint layer, wherein the paint layer comprises an organic polymer and an antimicrobial agent loaded on the organic polymer, wherein the antimicrobial agent is a metal and/or a metal ion and/or a metal oxide.
In the present invention, the surface layer is a genuine leather, a PVC surface layer, a TPO surface layer, or a PU surface layer. In the present invention, the organic polymer as an organic carrier can be one, two or three of a polyurethane resin, an acrylic resin, and an epoxy resin. The particle size of the organic polymer is preferably 50-500 nm, and more preferably 440-500 nm. If the particle size of the organic polymer is too large, on the one hand, the organic polymer with a larger particle size has poor dispersibility itself, and on the other hand, the antimicrobial agent tends to be wrapped by the molecular chain of an organic polymer with a larger particle size, thus reducing the antimicrobial performance; if the particle size of the organic polymer is too small, the strength of the water-based paint after forming films will be decreased. In the present invention, the antimicrobial agent is one, two or more of silver, silver ions,
oxides of silver, zinc, zinc ions, oxides of zinc, copper, copper ions, oxides of copper, nickel, nickel ions, oxides of nickel, cobalt, cobalt ions, oxides of cobalt, lead, lead ions and oxides of lead. The antimicrobial agent is preferably silver and ions thereof, zinc and ions thereof, and copper and ions thereof, wherein the antimicrobial effect of silver and ions thereof is the best and the safest.
In the present invention, loading refers to the antimicrobial agent being fixed on the organic polymer by a certain treatment process, making the antimicrobial agent difficult to separate from the organic polymer in the water-based paint, and an ordinary person skilled in the art can select conventional treatment processes for a treatment.
Compared with the prior art, the present invention has the following beneficial effects: it has been unexpectedly found that the present invention, by loading an antimicrobial agent of a metal and/or metal ions and/or metal oxides, onto an organic polymer and preparing an antimicrobial leather by a water-based paint comprising the antimicrobial agent and the organic polymer, can not only improve the antimicrobial performance of the antimicrobial leather, but also ensure the abrasion resistance and noise resistance of the antimicrobial leather. [Detailed Description of Embodiments]
The present invention will be further illustrated below by examples and comparative examples. Example 1
The present example involves the preparation of a PVC artificial leather, the preparation method of the PVC artificial leather used in this example is a convention method in the art, and a person skilled in the art would have clearly known how to select specific apparatuses, process steps and conditions; therefore, the following description of the preparation process only involves the critical steps and conditions for one of the preparation methods.
Step I, material mixing The preparation of PVC dense layer slurry: 50 parts of a PVC powder, 45 parts of a phthalate plasticizer, 2 parts of a calcium and zinc composite stabilizer, 1 part of an aluminum hydroxide auxiliary agent, 1 part of a hindered amine light stabilizer, 1 part of a hindered phenolic antioxidant and 3 parts of a pigment are selected as raw materials, the raw materials are put into a mixing tank, followed by mechanical mixing, and vacuumizing until achieving uniform mixing, thus to obtain the PVC dense layer slurry.
The preparation of PVC foaming layer slurry: 50 parts of a PVC powder, 2 parts of a foaming agent, 45 parts of a phthalate plasticizer, 2 parts of a calcium and zinc composite stabilizer, 1 part of an aluminum hydroxide auxiliary agent, 1 part of a hindered amine light stabilizer, 1 part of a hindered phenolic antioxidant and 1 part of a pigment are selected as raw materials, the raw materials are put into a mixing tank, followed by mechanical mixing, and vacuumizing until achieving uniform mixing, thus to obtain the PVC foaming layer slurry. The preparation of PVC glue layer slurry: 50 parts of a PVC powder, 45 parts of a phthalate plasticizer, 2 parts of a calcium and zinc composite stabilizer, 1 part of an aluminum hydroxide auxiliary agent, 1 part of a hindered amine light stabilizer and 1 part of a hindered phenolic antioxidant are selected as raw materials, the raw materials are put into a mixing tank, followed by mechanical mixing, and vacuumizing until achieving uniform mixing, thus to obtain the PVC glue layer slurry.
Step II, the preparation of PVC surface layer and combination with the base fabric
By an indirect coating method, the PVC dense layer slurry is coated onto a release paper and sent to a first-stage oven for plasticization and shaping. Then the plasticized
and shaped PVC dense layer is coated with the PVC foaming layer, and sent into a second-stage oven for plasticization and shaping, so as to obtain the PVC surface layer.
The plasticized and shaped PVC foaming layer is roller-coated with the PVC glue layer slurry, then a polyester warp knitted fabric is combined therewith and is sent to a third- stage oven for final shaping, so as to obtain a PVC artificial leather coating material. After taking out of the oven, the PVC artificial leather coating material is separated from the release paper, and the two are rolled up individually. The rolled-up PVC artificial leather coating material is sent to a printing stage.
Step III, the preparation of the water-based polyurethane paint
According to the formulation of the water-based polyurethane paint of example 1 in table 1-1 , the raw materials of the water-based polyurethane paint are put into a paint bucket for mechanical mixing until uniformly mixed, so as to obtain the water-based polyurethane paint.
Step IV, printing After the rolled-up PVC artificial leather coating material in step II is unrolled, the water-
based polyurethane paint prepared in step III is printed onto the PVC dense layer of the PVC artificial leather coating material. After 3 layers of the water-based polyurethane paint are printed by a printing machine, the same is sent to an oven for drying, then cooled and rolled up, so as to obtain a printed semi-finished product of the rolled-up PVC artificial leather. The printed semi-finished product of the PVC artificial leather is sent to an embossing stage.
Step V, embossing The above-mentioned rolled-up printed semi-finished product of the rolled-up PVC artificial leather is unrolled. The surface of the printed semi-finished product of the PVC artificial leather is softened by means of heating, and by using an embossing roller, the pattern on the surface of the embossing roller is imparted onto the side of the PVC dense layer of the printed semi-finished product of the PVC artificial leather by pressure. After cooling same, a PVC artificial leather with patterns on the surface is obtained.
Examples 2-9
Examples 2-9 are also the preparation of PVC artificial leathers. The preparation processes of PVC artificial leathers, the components and contents of the PVC dense
layer, the components and contents of the PVC foaming layer and the components and contents of the PVC glue layer, and the selection of the basic fabric layer therein are all completely the same as example 1 , and the difference only lies in the formulation of the paint layer. See table 1-1, table 1-2 and table 1-3 for more details.
Comparative examples 1-8
Comparative examples 1-8 are also the preparation of PVC artificial leathers. The preparation processes of PVC artificial leathers, the components and contents of the PVC dense layer, the components and contents of the PVC foaming layer and the components and contents of the PVC glue layer, and the selection of the basic fabric layer therein are all completely the same as example 1 , and the difference only lies in the formulation of the paint layer. See table 1-1, table 1-2 and table 1-3 for more details. Table 1-1
Table 1-2
Note: The parts in table 1-1 , table 1-2 and table 1-3 are parts by weight, and the reference parts are all the same.
Performance tests
Noise resistance test
The surface noise resistance tests of the PVC artificial leathers prepared in examples 1- 9 and comparative examples 1-8 are performed according to the industry standard VDA230-206, and the test results are shown in table 2-1 , table 2-2, table 2-3 and table
2-4.
Abrasion resistance test The surface abrasion resistance tests of the PVC artificial leathers prepared in examples 1-9 and comparative examples 1-8 are performed, with a load of 1 ,000 grams and the number of tests of 1 ,000 times selected, according to the General Motor Standard
GMW3208, and the test results are shown in table 2-1, table 2-2, table 2-3 and table 2-4.
Antimicrobial performance test
The antimicrobial performance test on the initial samples: The surface antimicrobial performance tests of the initial samples of PVC artificial leathers prepared in examples 1-9 and comparative examples 1-8 are performed according to the National Standard GB/T31402-2015, and the test results are shown in table 2-1 , table 2-2, table 2-3 and table 2-4. The antimicrobial performance test after heat aging: The initial samples are placed in an oven at 120°C for 21 days, and the surface antimicrobial performance tests after ageing of the PVC artificial leathers prepared in examples 1-9 and comparative examples 1-8 are performed according to the General Motor Standard GMW14122. The test results are shown in table 2-1 , table 2-2, table 2-3 and table 2-4.
The antimicrobial performance test after the Martindale abrasion resistance: The surface antimicrobial performance tests after abrasion of the PVC artificial leathers prepared in examples 1-9 and comparative examples 1-8 are performed, with the number of abrasions of 20,000 selected, according to the National Standard GB/T19089-2003, and the test results are shown in table 2-1 , table 2-2, table 2-3 and table 2-4.
Light resistance test
The initial samples are placed in a test device and exposed to light for 5 cycles, and the light resistances of the PVC artificial leathers prepared in examples 1-9 and comparative examples 1-8 are performed according to the Volkswagen Standard PV1303. The test results are shown in table 2-1 , table 2-2, table 2-3 and table 2-4.
Amine resistance test The amine resistance tests of the PVC artificial leathers prepared in examples 1-9 and comparative examples 1-8 are performed according to the Volkswagen Standard PV3944, and the test results are shown in table 2-1 , table 2-2, table 2-3 and table 2-4.
Table 2-1
Table 2-2
Table 2-3
Table 2-4
It could be seen from the test results of example 2, example 4, example 5 and comparative example 7 that adding the antimicrobial agent of silver ions, zinc ions or zinc oxide into the water-based paint and loading the antimicrobial agent on the organic polymer polyurethane resin can significantly improve the antimicrobial performance of the PVC artificial leathers prepared thereby, and the noise resistance and abrasion resistance of the PVC artificial leathers also can reach the standards. Based on this, a person skilled in the art could reasonably learn that metals, metal ions and metal oxides can all be loaded onto the organic polymers to achieve similar technical effects.
It can be seen from the test results of example 2, example 4, example 5 and comparative example 8 that, compared with the antimicrobial agent loaded onto an inorganic carrier, by loading the antimicrobial agent onto an organic polymer, the surface of the PVC artificial leathers has significantly improved antimicrobial performance, noise resistance and abrasion resistance, and unexpected technical effects are achieved.
It can be seen from the test results of examples 1-3 and comparative examples 1 and 2
that, the content of silver ions in the water-based paint will affect all of the antimicrobial performance, the noise resistance and the abrasion resistance of the antimicrobial leathers prepared by the water-based paint. If the content of the silver ions is too small, for example, in comparative example 1 with a content of 0.08%o, the critera of the antimicrobial performance therein are all relatively poor; if the content of silver ions is too large, for example, in comparative example 2 with a content of 3.5%o, although some of the antimicrobial performance reaches the standards (for initial samples, > 99.9%; for samples after heat aging, > 99.9%), the antimicrobial performance of the samples after the noise resistance, the abrasion resistance and the Martindale abrasion resistance are all relatively poor. It can be seen from the test results of examples 1 -3 that when the content of silver ions is in a certain range, the change of the content of silver ions will not have an obvious influence on the antimicrobial performance, the light resistance and the amine resistance, but will have a relatively obvious influence on the noise resistance and the abrasion resistance. Among the three examples, the overall performance of example 1 is the best.
It can be seen from the test results of example 2, examples 6 and 7 and comparative examples 3 and 4 that the solid content of the main resin, the water-based polyurethane resin, in the water-based paint has a certain influence on the antimicrobial performance of the antimicrobial leathers prepared by the water-based paint. If the solid content of the
main resin, the polyurethane resin, is too small, (for example, comparative example 3), the paint layer prepared by the water-based paint is relatively thin, and although the antimicrobial performance of the initial sample and the sample after heat ageing can reach the standard, the antimicrobial performance of the sample after Martindale abrasion resistance can not reach the standard; if the solid content of the main resin, the polyurethane resin, is too large, (for example, comparative example 4), the paint layer prepared by the water-based paint is relatively thick, and the antimicrobial performance of the antimicrobial leathers in various aspects cannot reach the standards.
It can be seen from the test results of example 2, examples 8 and 9 and comparative examples 5 and 6 that the particle size of the carrier, the water-based polyurethane resin, in the water-based paint has an influence on all of the antimicrobial performance, the noise resistance, and the abrasion resistance of the antimicrobial leathers prepared by the water-based paint. If the particle size of the carrier, the water-based polyurethane resin, is too small (for example, comparative example 5), the antimicrobial performance and abrasion resistance of the antimicrobial leathers in various aspects cannot reach the standards; if the particle size of the carrier, the water-based polyurethane resin, is too large (for example, comparative example 6), the antimicrobial performance of the antimicrobial leathers in various aspects cannot reach the standards. It can also be seen from the test results of example 2 and examples 8 and 9 that when the particle size of
the carrier, the water-based polyurethane resin, is in a certain range, the particle size of the carrier polyurethane resin will not have an obvious influence on the antimicrobial performance, the light resistance and the amine resistance, but will have a more obvious influence on the noise resistance and the abrasion resistance. Among the three examples, the overall performance of example 9 is the best.
Examples 1-9 are all PVC artificial leathers. On this basis, a person skilled in the art could reasonably learn that the above-mentioned water-based polyurethane paint can also be applied to genuine leathers, TPO artificial leathers, PU leathers etc., to achieve similar technical effects.
It can be understood that in the absence of conflict, the abovementioned examples of the present invention may be combined with each other to obtain further examples. The various specific technical features described in the particular examples above may, in the absence of contradiction, be combined in any suitable manner.
The above examples are only preferred examples of the present invention rather than all examples. It can be understood that those of ordinary skill in the art can make many reasonable changes to the technical solutions of the present invention without departing from the essential spirit and scope of the present invention, and these reasonable
changes are all within the protection scope of the present invention.
Claims
1. A water-based paint for preparing leathers, wherein the water-based paint comprises an organic polymer and an antimicrobial agent loaded on the organic polymer, and the antimicrobial agent is a metal and/or a metal ion and/or a metal oxide.
2. The water-based paint of claim 1 , wherein the organic polymer is one, two or three of a polyurethane resin, an acrylic resin, and an epoxy resin.
3. The water-based paint of claim 1 , wherein the particle size of the organic polymer is
50-500 nm, and preferably 440-500 nm.
4. The water-based paint of claim 1 , wherein the antimicrobial agent is one, two or more of silver, silver ions, oxides of silver, zinc, zinc ions, oxides of zinc, copper, copper ions, oxides of copper, nickel, nickel ions, oxides of nickel, cobalt, cobalt ions, oxides of cobalt, lead, lead ions and oxides of lead.
5. The water-based paint of any one of claims 1 to 4, wherein the antimicrobial agent is the zinc ions, and the water-based paint comprises, based on the total weight of the water-based paint, 0.3-10%oo of the antimicrobial agent.
6. The water-based paint of any one of claims 1 to 4, wherein the antimicrobial agent is the silver ions, and the water-based paint comprises, based on the total weight of the water-based paint, 0.2-3%oo of the antimicrobial agent, preferably 0.3-2.5%oo of the antimicrobial agent, and more preferably 0.3-2%oo of the antimicrobial agent.
7. The water-based paint of claim 6, wherein the organic polymer and the antimicrobial agent are prepared as an aqueous antimicrobial agent solution, then the water-based paint is prepared and the aqueous antimicrobial agent solution comprises, based on the total weight of the aqueous antimicrobial agent solution, 0.1-3% of the antimicrobial agent, 1-30% of the organic polymer, and 69-98.5% of water.
8. The water-based paint of claim 7, wherein the water-based paint comprises, based on the total weight of the water-based paint, 50-98% of a water-based resin, 1 -20% of the aqueous antimicrobial agent solution, 1 -10% of a curing agent, and 0-25% of an auxiliary agent.
9. The water-based paint of claim 8, wherein the water-based paint comprises 60-95% of the water-based resin, 2-10% of the aqueous antimicrobial agent solution, 1-10% of the curing agent, and 0-25% of the auxiliary agent.
10. The water-based paint of claim 8, wherein the water-based resin is one, two or three of a water-based polyurethane resin, a water-based acrylic resin, and a water-based epoxy resin.
11. The water-based paint of claim 8, wherein the particle size of the water-based resin is 50-900 nm.
12. The water-based paint of claim 8, wherein the solid content of the water-based resin is 10-60%, and preferably 15-30%.
13. An antimicrobial leather comprising a paint layer, wherein the paint layer is prepared by the water-based paint of any one of claims 1 to 12.
14. An antimicrobial leather comprising a surface layer and a paint layer, wherein the paint layer comprises an organic polymer and an antimicrobial agent loaded on the organic polymer, and the antimicrobial agent is a metal and/or a metal ion and/or a metal oxide.
15. The antimicrobial leather of claim 14, wherein the organic polymer is one, two or
three of a polyurethane resin, an acrylic resin, and an epoxy resin.
16. The antimicrobial leather of claim 14, wherein the particle size of the organic polymer is 50-500 nm, and preferably 440-500 nm.
17. The antimicrobial leather of claim 14, wherein the antimicrobial agent is one, two or more of silver, silver ions, oxides of silver, zinc, zinc ions, oxides of zinc, copper, copper ions, oxides of copper, nickel, nickel ions, oxides of nickel, cobalt, cobalt ions, oxides of cobalt, lead, lead ions and oxides of lead.
18. The antimicrobial leather of claim 14, wherein the surface layer is a genuine leather, a PVC surface layer, a TPO surface layer, or a PU surface layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110660475.3A CN115478440B (en) | 2021-06-15 | 2021-06-15 | Water-based paint and antibacterial leather prepared from same |
| PCT/EP2022/064377 WO2022263142A1 (en) | 2021-06-15 | 2022-05-26 | Water-based paint and antimicrobial leather prepared thereby |
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| EP4355832A1 true EP4355832A1 (en) | 2024-04-24 |
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| EP (1) | EP4355832A1 (en) |
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| JP3363601B2 (en) * | 1994-07-15 | 2003-01-08 | 東亞合成株式会社 | Manufacturing method of antibacterial leather |
| DE19707221A1 (en) * | 1997-02-24 | 1998-08-27 | Basf Ag | Antibacterial and fungicidal polymer dispersions |
| JPH11158017A (en) * | 1997-11-26 | 1999-06-15 | Mitsubishi Paper Mills Ltd | Antibacterial and antifungal agent composition |
| CN101161740A (en) * | 2007-11-28 | 2008-04-16 | 盛虹集团有限公司 | Multifunctional decorative coating |
| EP2108387A1 (en) * | 2008-04-08 | 2009-10-14 | Bayer MaterialScience AG | Aqueous non-ionic polyurethane dispersions containing silver |
| EP2145918B1 (en) * | 2008-07-17 | 2011-09-14 | W.L. Gore & Associates GmbH | Antimicrobial coatings comprising a complex of an ionic fluoropolymer and an antimicrobial counter-ion |
| CN102206393B (en) * | 2010-03-31 | 2014-02-12 | 罗门哈斯公司 | Antibacterial polymer emulsion and coating combination |
| JP5769382B2 (en) * | 2010-03-31 | 2015-08-26 | 本田技研工業株式会社 | Synthetic resin leather and method for producing the same |
| CA2934115C (en) * | 2013-12-25 | 2020-07-14 | Rohm And Haas Company | Antimicrobial polymer emulsion with improved color stability |
| CN103980771B (en) * | 2014-06-10 | 2016-03-16 | 马鞍山创宁新材料科技有限公司 | Water base functional sound-absorbing coating of a kind of nano modification and preparation method thereof |
| CN105838164A (en) * | 2016-05-19 | 2016-08-10 | 惠州市彩田化工实业有限公司 | Aqueous nano-antibacterial sound absorption coating and preparation method thereof |
| IT201600119819A1 (en) * | 2016-11-25 | 2018-05-25 | Thales Alenia Space Italia Spa Con Unico Socio | POLYMERIC MATERIAL ANTIBACTERIAL, ITS COMPOSITE AND THEIR USES |
| RO133342B1 (en) * | 2017-11-22 | 2023-04-28 | Institutul Naţional De Cercetare-Dezvoltare Textile Şi Pielărie-Sucursala Institutul De Cercetare Pielărie-Încălţăminte | Hides with antimicrobial and self-cleaning properties and process for preparing the same |
| CN112194949B (en) * | 2020-09-18 | 2022-02-22 | 三棵树涂料股份有限公司 | Titanium dioxide and silver loaded acrylic acid composite emulsion and preparation method and application thereof |
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