CN113863017A - Easy-to-clean high-wear-resistance synthetic leather for sofa and preparation method thereof - Google Patents

Easy-to-clean high-wear-resistance synthetic leather for sofa and preparation method thereof Download PDF

Info

Publication number
CN113863017A
CN113863017A CN202111264858.5A CN202111264858A CN113863017A CN 113863017 A CN113863017 A CN 113863017A CN 202111264858 A CN202111264858 A CN 202111264858A CN 113863017 A CN113863017 A CN 113863017A
Authority
CN
China
Prior art keywords
parts
polyurethane
synthetic leather
sofa
wear
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.)
Granted
Application number
CN202111264858.5A
Other languages
Chinese (zh)
Other versions
CN113863017B (en
Inventor
黄金
黄银
陈渊源
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujian Sanyuan Xing Textile Technology Co ltd
Original Assignee
Fujian Sanyuan Xing Textile Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujian Sanyuan Xing Textile Technology Co ltd filed Critical Fujian Sanyuan Xing Textile Technology Co ltd
Priority to CN202111264858.5A priority Critical patent/CN113863017B/en
Publication of CN113863017A publication Critical patent/CN113863017A/en
Application granted granted Critical
Publication of CN113863017B publication Critical patent/CN113863017B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • 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
    • D06N3/0056—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
    • 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
    • D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
    • D06N3/0088—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
    • D06N3/009—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin by spraying components on the web
    • 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
    • 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
    • D06N2209/12—Permeability or impermeability properties
    • D06N2209/121—Permeability to gases, adsorption
    • D06N2209/123—Breathable
    • 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
    • D06N2209/14—Properties of the materials having chemical properties
    • D06N2209/143—Inert, i.e. inert to chemical degradation, corrosion resistant
    • 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
    • D06N2209/14—Properties of the materials having chemical properties
    • D06N2209/146—Soilproof, soil repellent
    • 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
    • D06N2209/00—Properties of the materials
    • D06N2209/16—Properties of the materials having other properties
    • D06N2209/1685—Wear resistance
    • 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
    • D06N2209/1692—Weather resistance
    • 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
    • D06N2211/14—Furniture, upholstery
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)

Abstract

The invention discloses easy-to-clean high-abrasion-resistance synthetic leather for a sofa and a preparation method thereof; the easy-to-clean high-wear-resistance synthetic leather for sofa is prepared by coating anti-fouling wear-resistance slurry on the surface of a polyurethane synthetic leather blank for sofa; the polyurethane synthetic leather blank bottom for the sofa is formed by compounding a polyurethane film sheet and base cloth, and the polyurethane film sheet is formed by extruding polyurethane slurry through a T-shaped tape casting head; the polyurethane slurry comprises the following raw materials in parts by weight: 60-90 parts of waterborne polyurethane, 30-45 parts of N, N-dimethylformamide, 5-10 parts of ultrafine lignin and 10-28 parts of nano calcium carbonate. The synthetic leather prepared by the invention has the style and appearance of natural leather, is soft in hand feeling, has high wear resistance and air permeability, and the anti-fouling wear-resistant slurry coated on the bottom surface of the synthetic leather blank is easy to clean the surface of a leather-combined product, does not occupy stains, and has high adhesion with the bottom of the synthetic leather blank, excellent wear resistance and long service life.

Description

Easy-to-clean high-wear-resistance synthetic leather for sofa and preparation method thereof
Technical Field
The invention relates to the technical field of synthetic leather, and particularly relates to easy-to-clean high-wear-resistance synthetic leather for a sofa and a preparation method thereof.
Background
Natural leather has excellent natural characteristics, and is widely used for producing daily necessities and industrial products, but with the increase of the world population, the demand of human beings on leather is multiplied, and the demand of people cannot be met by the limited natural leather. In order to meet the demand of people on leather, scientists research and develop artificial leather and synthetic leather. The polyurethane synthetic leather has the appearance of soft and natural luster, soft hand feeling and strong real leather feeling, has excellent mechanical properties such as excellent bonding property with a base material, abrasion resistance, flexing resistance, ageing resistance and the like, also has the advantages of good cold resistance, ventilation, washability, convenient processing, low price and the like, is the most ideal substitute of natural leather, and is widely applied to the industries such as clothing, shoe industry, bags, furniture and the like.
Chinese patent CN101748607A discloses a preparation method of easy-to-clean high-wear-resistance durable synthetic leather for sofa furniture, which comprises the steps of coating a layer of colorless surface treatment slurry on the surface of the synthetic leather for sofa furniture, wherein the colorless surface treatment slurry comprises 80-120 parts by weight of a two-liquid polyurethane resin, 1.5-2.5 parts by weight of a cross-linking agent, 10 parts by weight of an antifouling treatment agent and 30-45 parts by weight of dimethylformamide; the obtained synthetic leather for sofa furniture has the performance that the surface can be easily wiped clean by cloth after being polluted by oil stain, coffee, dust and the like, and the wear resistance and the service performance of the product are greatly improved. The two-liquid polyurethane resin in the colorless surface treatment slurry disclosed by the patent is not yellowing-resistant, the antifouling treatment agent has little effect on the stain removal and dirt resistance of leather, and the wear resistance of the two-liquid polyurethane resin serving as synthetic leather for sofa furniture is still to be further improved.
Chinese patent CN108914608A discloses a frosted high-grade sofa leather easy to clean, which sequentially comprises a fabric bottom layer, a fabric layer, a surface layer and a coating layer from bottom to top, wherein the fabric bottom layer is single-sided flannelette, an adhesive layer is arranged between the fabric bottom layer and the fabric layer, the fabric bottom layer and the fabric layer are compounded through the adhesive layer, the surface layer is a dry PU synthetic leather surface layer, a polyester resin coating is coated on the lower end surface of the surface layer, and the polyester resin coating is arranged close to the fabric layer; the thickness of the surface layer is 0.15mm, and the thickness of the polyester resin coating is 0.2 mm; the coating layer is a soil release material coating. Above-mentioned patent passes through the coating of easy decontamination material of surface course surface coating to make the leather brighter, more resistant dirty, nevertheless through the viscose layer complex between fabric bottom and the fabric, can influence sofa leather to a certain extent and feel, and sofa leather's wearability is because of the coating of the easy decontamination material coating on coating surface, makes leather wear resistance not good.
Disclosure of Invention
In view of the above, the invention provides an easy-to-clean high-wear-resistance synthetic leather for a sofa and a preparation method thereof, so as to solve the technical problems.
The invention provides the following technical scheme:
the easy-to-clean high-wear-resistance synthetic leather for the sofa is prepared by coating anti-soil wear-resistance slurry on the surface of a polyurethane synthetic leather blank for the sofa; the polyurethane synthetic leather blank bottom for the sofa is formed by compounding a polyurethane film sheet and base cloth, and the polyurethane film sheet is formed by extruding polyurethane slurry through a T-shaped tape casting head; the polyurethane slurry comprises the following raw materials in parts by weight: 60-90 parts of waterborne polyurethane, 30-45 parts of N, N-dimethylformamide, 5-10 parts of ultrafine lignin and 10-28 parts of nano calcium carbonate.
Preferably, the anti-fouling and wear-resistant slurry comprises the following raw materials in parts by weight: 35 to 60 parts of aqueous polyurethane emulsion, 15 to 25 parts of acrylate mixture, 5 to 10 parts of dodecafluoroheptyl methacrylate, 1 to 3 parts of initiator, 5 to 15 parts of nano filler, 6 to 12 parts of nano modified gelatin and 2 to 6 parts of thickener.
More preferably, the anti-fouling and wear-resisting slurry comprises the following raw materials in parts by weight: 40 to 55 parts of aqueous polyurethane emulsion, 18 to 22 parts of acrylate mixture, 6 to 8 parts of dodecafluoroheptyl methacrylate, 1.5 to 2.5 parts of initiator, 8 to 12 parts of nano filler, 8 to 10 parts of nano modified gelatin and 3 to 5 parts of thickener.
More preferably, the anti-fouling and wear-resisting slurry comprises the following raw materials in parts by weight: 45 parts of aqueous polyurethane emulsion, 17 parts of acrylate mixture, 8 parts of dodecafluoroheptyl methacrylate, 2.2 parts of initiator, 8 parts of nano filler, 8 parts of nano modified gelatin and 3 parts of thickener.
More preferably, the acrylate mixture is a mixture of methyl methacrylate and butyl methacrylate according to the mass ratio of 1-2: 1.
More preferably, the nano filler is any one or the combination of more than two of nano calcium carbonate, nano titanium dioxide, nano silicon dioxide and nano zinc dioxide; the grain diameter of the nano filler is less than or equal to 200 nm.
More preferably, the preparation method of the nano-modified gelatin comprises the following steps:
s1, adding gelatin into water, and uniformly dispersing to obtain a gelatin solution with the concentration of 20%; adding a hydrochloric acid solution with the concentration of 1mol/L into a gelatin solution, stopping adding when the pH value is 3-5, and stirring and dispersing uniformly to obtain a mixed solution;
s2, dissolving titanium alcohol ester in absolute ethyl alcohol, stirring until the titanium alcohol ester is completely dissolved, adding acetylacetone, heating to 30-45 ℃, and fully stirring and uniformly mixing to obtain a modifier;
s3, dropwise adding the modifier obtained in the step S2 into the mixed solution obtained in the step S1, heating to 30-45 ℃, stirring for 2-4 h, adjusting the pH value to 8-9.5 with ammonia water, and continuously stirring for 1-1.5 h at constant temperature to obtain the nano modified gelatin.
The invention also aims to provide a preparation method of the easy-decontamination high-wear-resistance synthetic leather for sofa, which comprises the following steps:
(1) melting and blending the waterborne polyurethane, the N, N-dimethylformamide, the superfine lignin and the nano calcium carbonate in parts by weight, and extruding the mixture by a double-screw extruder to obtain polyurethane slurry; extruding and molding the polyurethane slurry through a T-shaped casting head to obtain a polyurethane film sheet; compounding and molding the polyurethane film with the base cloth through an embossing wheel to obtain a polyurethane synthetic leather blank bottom for the sofa;
(2) mixing the waterborne polyurethane emulsion with the acrylic acid mixture in parts by weight, fully stirring and uniformly mixing, then adding the dodecafluoroheptyl methacrylate and the initiator in parts by weight, and fully polymerizing, dispersing and emulsifying to obtain a modified waterborne polyurethane emulsion;
(3) mixing and grinding the nano filler and the nano modified gelatin in parts by weight, uniformly stirring and mixing the mixture with the modified waterborne polyurethane emulsion obtained in the step (2), adding the thickener in parts by weight, and fully and uniformly mixing to obtain the anti-fouling wear-resistant slurry;
(4) and (3) coating the anti-fouling wear-resistant slurry obtained in the step (3) on the bottom surface of the polyurethane synthetic leather blank for the sofa obtained in the step (1) through a coating process, and drying, cooling and drying to obtain the soil-release high-wear-resistant synthetic leather for the sofa.
Preferably, in the step (4), the coating process is to uniformly coat the coating anti-fouling and wear-resisting slurry obtained in the step (3) on the bottom surface of the sofa polyurethane synthetic leather blank obtained in the step (1) by a pressurized spraying device; the coating weight is 20g/m to 30 g/m.
According to the technical scheme, the invention has the beneficial effects that:
(1) the stain-resistant and wear-resistant synthetic leather for the sofa has the style and appearance of natural leather, is soft in hand feeling, has high wear resistance and air permeability, and can be easily cleaned and does not occupy stains by coating the stain-resistant and wear-resistant slurry on the surface of the synthetic leather blank, so that the stain-resistant and wear-resistant slurry is high in cohesiveness with the synthetic leather blank bottom, excellent in wear resistance and long in service life.
(2) The characteristics of the polyurethane slurry coated on the surface of the synthetic leather in the easy-to-clean high-wear-resistance synthetic leather for the sofa are greatly dependent on the performance of polyurethane resin, and the waterborne polyurethane has better hardness and chemical stability but no yellowing resistance.
(3) The nano modified gelatin is added into the anti-fouling wear-resistant slurry coated on the surface of the synthetic leather, so that the surface tension of the synthetic leather can be obviously reduced, the thermal stability and air permeability of a synthetic leather product are improved, and the nano modified gelatin also has a certain antibacterial property; the abrasion resistance of the synthetic leather can be improved by adding the nano filler; has good bonding effect with synthetic leather, and has excellent water resistance, heat resistance and flexibility.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
Example 1
Easy-to-clean high-wear-resistance synthetic leather for sofa and preparation method thereof
The easy-to-clean high-wear-resistance synthetic leather for the sofa is prepared by coating anti-fouling wear-resistance slurry on the surface of a polyurethane synthetic leather blank for the sofa; the polyurethane synthetic leather blank bottom for the sofa is formed by compounding a polyurethane film sheet and base cloth, and the polyurethane film sheet is formed by extruding polyurethane slurry through a T-shaped tape casting head; the polyurethane slurry comprises the following raw materials in parts by weight: 60 parts of waterborne polyurethane, 30 parts of N, N-dimethylformamide, 5 parts of superfine lignin and 10 parts of nano calcium carbonate.
The anti-fouling wear-resistant slurry comprises the following raw materials in parts by weight: 35 parts of aqueous polyurethane emulsion, 15 parts of acrylate mixture, 5 parts of dodecafluoroheptyl methacrylate, 1 part of initiator, 5 parts of nano filler, 6 parts of nano modified gelatin and 2 parts of thickener. The acrylic ester mixture is a mixture of methyl methacrylate and butyl methacrylate according to the mass ratio of 1: 1; the nano filler is nano calcium carbonate; the grain diameter of the nano filler is less than or equal to 200 nm.
The preparation method of the nano modified gelatin comprises the following steps:
s1, adding gelatin into water, and uniformly dispersing to obtain a gelatin solution with the concentration of 20%; adding a hydrochloric acid solution with the concentration of 1mol/L into a gelatin solution, stopping adding when the pH value is 3, and stirring and dispersing uniformly to obtain a mixed solution;
s2, dissolving titanium alcohol ester in absolute ethyl alcohol, stirring until the titanium alcohol ester is completely dissolved, adding acetylacetone, heating to 30 ℃, and fully stirring and uniformly mixing to obtain a modifier;
s3, dropwise adding the modifier obtained in the step S2 into the mixed solution obtained in the step S1, heating to 30 ℃, stirring for 2 hours, adjusting the pH value to 8 by ammonia water, and continuously stirring for 1 hour at constant temperature to obtain the nano modified gelatin.
The preparation method of the easy-decontamination high-abrasion-resistance synthetic leather for the sofa comprises the following steps:
(1) melting and blending the waterborne polyurethane, the N, N-dimethylformamide, the superfine lignin and the nano calcium carbonate in parts by weight, and extruding the mixture by a double-screw extruder to obtain polyurethane slurry; extruding and molding the polyurethane slurry through a T-shaped casting head to obtain a polyurethane film sheet; compounding and molding the polyurethane film with the base cloth through an embossing wheel to obtain a polyurethane synthetic leather blank bottom for the sofa;
(2) mixing the aqueous polyurethane emulsion and the acrylic acid mixture in parts by weight, fully stirring and uniformly mixing, then adding the dodecafluoroheptyl methacrylate and the initiator in parts by weight, and fully polymerizing, dispersing and emulsifying to obtain a modified aqueous polyurethane emulsion;
(3) mixing and grinding the nano filler and the nano modified gelatin in parts by weight, uniformly stirring and mixing the mixture with the modified waterborne polyurethane emulsion obtained in the step (2), adding the thickener in parts by weight, and fully and uniformly mixing to obtain the anti-fouling wear-resistant slurry;
(4) and (3) coating the anti-fouling wear-resistant slurry obtained in the step (3) on the bottom surface of the polyurethane synthetic leather blank for the sofa obtained in the step (1) through a coating process, and drying, cooling and drying to obtain the soil-release high-wear-resistant synthetic leather for the sofa.
In the step (4), the coating procedure is that the anti-fouling and wear-resistant coating obtained in the step (3) is uniformly sprayed on the bottom surface of the sofa polyurethane synthetic leather blank obtained in the step (1) through a pressurized spraying device; the coating weight was 20 g/m.
Example 2
Easy-to-clean high-wear-resistance synthetic leather for sofa and preparation method thereof
The easy-to-clean high-wear-resistance synthetic leather for the sofa is prepared by coating anti-fouling wear-resistance slurry on the surface of a polyurethane synthetic leather blank for the sofa; the polyurethane synthetic leather blank bottom for the sofa is formed by compounding a polyurethane film sheet and base cloth, and the polyurethane film sheet is formed by extruding polyurethane slurry through a T-shaped tape casting head; the polyurethane slurry comprises the following raw materials in parts by weight: 65 parts of waterborne polyurethane, 35 parts of N, N-dimethylformamide, 6 parts of superfine lignin and 13 parts of nano calcium carbonate.
The anti-fouling wear-resistant slurry comprises the following raw materials in parts by weight: 40 parts of aqueous polyurethane emulsion, 18 parts of acrylate mixture, 6 parts of dodecafluoroheptyl methacrylate, 1.5 parts of initiator, 8 parts of nano filler, 8 parts of nano modified gelatin and 3 parts of thickener. The acrylic ester mixture is a mixture of methyl methacrylate and butyl methacrylate according to the mass ratio of 1.2: 1; the nano filler is the combination of nano calcium carbonate and nano titanium dioxide; the grain diameter of the nano filler is less than or equal to 200 nm.
The preparation method of the nano modified gelatin comprises the following steps:
s1, adding gelatin into water, and uniformly dispersing to obtain a gelatin solution with the concentration of 20%; adding a hydrochloric acid solution with the concentration of 1mol/L into a gelatin solution, stopping adding when the pH value is 4, and stirring and dispersing uniformly to obtain a mixed solution;
s2, dissolving titanium alcohol ester in absolute ethyl alcohol, stirring until the titanium alcohol ester is completely dissolved, adding acetylacetone, heating to 35 ℃, and fully stirring and uniformly mixing to obtain a modifier;
s3, dropwise adding the modifier obtained in the step S2 into the mixed solution obtained in the step S1, heating to 35 ℃, stirring for 2 hours, adjusting the pH value to 8 with ammonia water, and continuously stirring for 1 hour at constant temperature to obtain the nano modified gelatin.
The preparation method of the easy-decontamination high-abrasion-resistance synthetic leather for the sofa comprises the following steps:
(1) melting and blending the waterborne polyurethane, the N, N-dimethylformamide, the superfine lignin and the nano calcium carbonate in parts by weight, and extruding the mixture by a double-screw extruder to obtain polyurethane slurry; extruding and molding the polyurethane slurry through a T-shaped casting head to obtain a polyurethane film sheet; compounding and molding the polyurethane film with the base cloth through an embossing wheel to obtain a polyurethane synthetic leather blank bottom for the sofa;
(2) mixing the aqueous polyurethane emulsion and the acrylic acid mixture in parts by weight, fully stirring and uniformly mixing, then adding the dodecafluoroheptyl methacrylate and the initiator in parts by weight, and fully polymerizing, dispersing and emulsifying to obtain a modified aqueous polyurethane emulsion;
(3) mixing and grinding the nano filler and the nano modified gelatin in parts by weight, uniformly stirring and mixing the mixture with the modified waterborne polyurethane emulsion obtained in the step (2), adding the thickener in parts by weight, and fully and uniformly mixing to obtain the anti-fouling wear-resistant slurry;
(4) and (3) coating the anti-fouling wear-resistant slurry obtained in the step (3) on the bottom surface of the polyurethane synthetic leather blank for the sofa obtained in the step (1) through a coating process, and drying, cooling and drying to obtain the soil-release high-wear-resistant synthetic leather for the sofa.
In the step (4), the coating procedure is that the anti-fouling and wear-resistant coating obtained in the step (3) is uniformly sprayed on the bottom surface of the sofa polyurethane synthetic leather blank obtained in the step (1) through a pressurized spraying device; the coating weight was 25 g/m.
Example 3
Easy-to-clean high-wear-resistance synthetic leather for sofa and preparation method thereof
The easy-to-clean high-wear-resistance synthetic leather for the sofa is prepared by coating anti-fouling wear-resistance slurry on the surface of a polyurethane synthetic leather blank for the sofa; the polyurethane synthetic leather blank bottom for the sofa is formed by compounding a polyurethane film sheet and base cloth, and the polyurethane film sheet is formed by extruding polyurethane slurry through a T-shaped tape casting head; the polyurethane slurry comprises the following raw materials in parts by weight: 70 parts of waterborne polyurethane, 38 parts of N, N-dimethylformamide, 8 parts of superfine lignin and 15 parts of nano calcium carbonate.
The anti-fouling wear-resistant slurry comprises the following raw materials in parts by weight: 45 parts of aqueous polyurethane emulsion, 17 parts of acrylate mixture, 8 parts of dodecafluoroheptyl methacrylate, 2.2 parts of initiator, 8 parts of nano filler, 8 parts of nano modified gelatin and 3 parts of thickener. The acrylic ester mixture is a mixture of methyl methacrylate and butyl methacrylate according to the mass ratio of 2: 1; the nano filler is a combination of nano calcium carbonate, nano titanium dioxide, nano silicon dioxide and nano zinc dioxide; the grain diameter of the nano filler is less than or equal to 200 nm.
The preparation method of the nano modified gelatin comprises the following steps:
s1, adding gelatin into water, and uniformly dispersing to obtain a gelatin solution with the concentration of 20%; adding a hydrochloric acid solution with the concentration of 1mol/L into a gelatin solution, stopping adding when the pH value is 5, and stirring and dispersing uniformly to obtain a mixed solution;
s2, dissolving titanium alcohol ester in absolute ethyl alcohol, stirring until the titanium alcohol ester is completely dissolved, adding acetylacetone, heating to 45 ℃, and fully stirring and uniformly mixing to obtain a modifier;
s3, dropwise adding the modifier obtained in the step S2 into the mixed solution obtained in the step S1, heating to 45 ℃, stirring for 2-4 h, adjusting the pH value to 9 with ammonia water, and continuously stirring at constant temperature for 1.5h to obtain the nano modified gelatin.
The preparation method of the easy-decontamination high-abrasion-resistance synthetic leather for the sofa comprises the following steps:
(1) melting and blending the waterborne polyurethane, the N, N-dimethylformamide, the superfine lignin and the nano calcium carbonate in parts by weight, and extruding the mixture by a double-screw extruder to obtain polyurethane slurry; extruding and molding the polyurethane slurry through a T-shaped casting head to obtain a polyurethane film sheet; compounding and molding the polyurethane film with the base cloth through an embossing wheel to obtain a polyurethane synthetic leather blank bottom for the sofa;
(2) mixing the aqueous polyurethane emulsion and the acrylic acid mixture in parts by weight, fully stirring and uniformly mixing, then adding the dodecafluoroheptyl methacrylate and the initiator in parts by weight, and fully polymerizing, dispersing and emulsifying to obtain a modified aqueous polyurethane emulsion;
(3) mixing and grinding the nano filler and the nano modified gelatin in parts by weight, uniformly stirring and mixing the mixture with the modified waterborne polyurethane emulsion obtained in the step (2), adding the thickener in parts by weight, and fully and uniformly mixing to obtain the anti-fouling wear-resistant slurry;
(4) and (3) coating the anti-fouling wear-resistant slurry obtained in the step (3) on the bottom surface of the polyurethane synthetic leather blank for the sofa obtained in the step (1) through a coating process, and drying, cooling and drying to obtain the soil-release high-wear-resistant synthetic leather for the sofa.
In the step (4), the coating procedure is that the anti-fouling and wear-resistant coating obtained in the step (3) is uniformly sprayed on the bottom surface of the sofa polyurethane synthetic leather blank obtained in the step (1) through a pressurized spraying device; the coating weight was 30 g/m.
Example 4
Easy-to-clean high-wear-resistance synthetic leather for sofa and preparation method thereof
The easy-to-clean high-wear-resistance synthetic leather for the sofa is prepared by coating anti-fouling wear-resistance slurry on the surface of a polyurethane synthetic leather blank for the sofa; the polyurethane synthetic leather blank bottom for the sofa is formed by compounding a polyurethane film sheet and base cloth, and the polyurethane film sheet is formed by extruding polyurethane slurry through a T-shaped tape casting head; the polyurethane slurry comprises the following raw materials in parts by weight: 7590 parts of waterborne polyurethane, 40 parts of N, N-dimethylformamide, 8 parts of superfine lignin and 20 parts of nano calcium carbonate.
The anti-fouling wear-resistant slurry comprises the following raw materials in parts by weight: 48 parts of aqueous polyurethane emulsion, 20 parts of acrylate mixture, 7 parts of dodecafluoroheptyl methacrylate, 2 parts of initiator, 10 parts of nano filler, 9 parts of nano modified gelatin and 4 parts of thickener. The acrylate mixture is a mixture consisting of methyl methacrylate and butyl methacrylate according to a mass ratio of 1-2: 1; the nano filler is the combination of nano titanium dioxide and nano zinc dioxide; the grain diameter of the nano filler is less than or equal to 200 nm.
The preparation method of the nano modified gelatin comprises the following steps:
s1, adding gelatin into water, and uniformly dispersing to obtain a gelatin solution with the concentration of 20%; adding a hydrochloric acid solution with the concentration of 1mol/L into a gelatin solution, stopping adding when the pH value is 4, and stirring and dispersing uniformly to obtain a mixed solution;
s2, dissolving titanium alcohol ester in absolute ethyl alcohol, stirring until the titanium alcohol ester is completely dissolved, adding acetylacetone, heating to 40 ℃, and fully stirring and uniformly mixing to obtain a modifier;
s3, dropwise adding the modifier obtained in the step S2 into the mixed solution obtained in the step S1, heating to 40 ℃, stirring for 2-4 h, adjusting the pH value to 8-9.5 with ammonia water, and continuously stirring at constant temperature for 1.5h to obtain the nano modified gelatin.
The preparation method of the easy-decontamination high-abrasion-resistance synthetic leather for the sofa comprises the following steps:
(1) melting and blending the waterborne polyurethane, the N, N-dimethylformamide, the superfine lignin and the nano calcium carbonate in parts by weight, and extruding the mixture by a double-screw extruder to obtain polyurethane slurry; extruding and molding the polyurethane slurry through a T-shaped casting head to obtain a polyurethane film sheet; compounding and molding the polyurethane film with the base cloth through an embossing wheel to obtain a polyurethane synthetic leather blank bottom for the sofa;
(2) mixing the aqueous polyurethane emulsion and the acrylic acid mixture in parts by weight, fully stirring and uniformly mixing, then adding the dodecafluoroheptyl methacrylate and the initiator in parts by weight, and fully polymerizing, dispersing and emulsifying to obtain a modified aqueous polyurethane emulsion;
(3) mixing and grinding the nano filler and the nano modified gelatin in parts by weight, uniformly stirring and mixing the mixture with the modified waterborne polyurethane emulsion obtained in the step (2), adding the thickener in parts by weight, and fully and uniformly mixing to obtain the anti-fouling wear-resistant slurry;
(4) and (3) coating the anti-fouling wear-resistant slurry obtained in the step (3) on the bottom surface of the polyurethane synthetic leather blank for the sofa obtained in the step (1) through a coating process, and drying, cooling and drying to obtain the soil-release high-wear-resistant synthetic leather for the sofa.
In the step (4), the coating procedure is that the anti-fouling and wear-resistant coating obtained in the step (3) is uniformly sprayed on the bottom surface of the sofa polyurethane synthetic leather blank obtained in the step (1) through a pressurized spraying device; the coating weight was 25 g/m.
Example 5
Easy-to-clean high-wear-resistance synthetic leather for sofa and preparation method thereof
The easy-to-clean high-wear-resistance synthetic leather for the sofa is prepared by coating anti-fouling wear-resistance slurry on the surface of a polyurethane synthetic leather blank for the sofa; the polyurethane synthetic leather blank bottom for the sofa is formed by compounding a polyurethane film sheet and base cloth, and the polyurethane film sheet is formed by extruding polyurethane slurry through a T-shaped tape casting head; the polyurethane slurry comprises the following raw materials in parts by weight: 85 parts of waterborne polyurethane, 42 parts of N, N-dimethylformamide, 9 parts of superfine lignin and 25 parts of nano calcium carbonate.
The anti-fouling wear-resistant slurry comprises the following raw materials in parts by weight: 55 parts of aqueous polyurethane emulsion, 22 parts of acrylate mixture, 8 parts of dodecafluoroheptyl methacrylate, 2.5 parts of initiator, 12 parts of nano filler, 10 parts of nano modified gelatin and 5 parts of thickener. The acrylic ester mixture is a mixture of methyl methacrylate and butyl methacrylate according to the mass ratio of 1.8: 1; the nano filler is a combination of nano calcium carbonate, nano silicon dioxide and nano zinc dioxide; the grain diameter of the nano filler is less than or equal to 200 nm.
The preparation method of the nano modified gelatin comprises the following steps:
s1, adding gelatin into water, and uniformly dispersing to obtain a gelatin solution with the concentration of 20%; adding 1mol/L hydrochloric acid solution into gelatin solution, stopping adding when the pH value is 4.5, and stirring and dispersing uniformly to obtain mixed solution;
s2, dissolving titanium alcohol ester in absolute ethyl alcohol, stirring until the titanium alcohol ester is completely dissolved, adding acetylacetone, heating to 40 ℃, and fully stirring and uniformly mixing to obtain a modifier;
s3, dropwise adding the modifier obtained in the step S2 into the mixed solution obtained in the step S1, heating to 40, stirring for 2-4 h, adjusting the pH value to 9 with ammonia water, and continuously stirring at constant temperature for 1.5h to obtain the nano modified gelatin.
The preparation method of the easy-decontamination high-abrasion-resistance synthetic leather for the sofa comprises the following steps:
(1) melting and blending the waterborne polyurethane, the N, N-dimethylformamide, the superfine lignin and the nano calcium carbonate in parts by weight, and extruding the mixture by a double-screw extruder to obtain polyurethane slurry; extruding and molding the polyurethane slurry through a T-shaped casting head to obtain a polyurethane film sheet; compounding and molding the polyurethane film with the base cloth through an embossing wheel to obtain a polyurethane synthetic leather blank bottom for the sofa;
(2) mixing the aqueous polyurethane emulsion and the acrylic acid mixture in parts by weight, fully stirring and uniformly mixing, then adding the dodecafluoroheptyl methacrylate and the initiator in parts by weight, and fully polymerizing, dispersing and emulsifying to obtain a modified aqueous polyurethane emulsion;
(3) mixing and grinding the nano filler and the nano modified gelatin in parts by weight, uniformly stirring and mixing the mixture with the modified waterborne polyurethane emulsion obtained in the step (2), adding the thickener in parts by weight, and fully and uniformly mixing to obtain the anti-fouling wear-resistant slurry;
(4) and (3) coating the anti-fouling wear-resistant slurry obtained in the step (3) on the bottom surface of the polyurethane synthetic leather blank for the sofa obtained in the step (1) through a coating process, and drying, cooling and drying to obtain the soil-release high-wear-resistant synthetic leather for the sofa.
In the step (4), the coating procedure is that the anti-fouling and wear-resistant coating obtained in the step (3) is uniformly sprayed on the bottom surface of the sofa polyurethane synthetic leather blank obtained in the step (1) through a pressurized spraying device; the coating weight was 28 g/m.
Example 6
Easy-to-clean high-wear-resistance synthetic leather for sofa and preparation method thereof
The easy-to-clean high-wear-resistance synthetic leather for the sofa is prepared by coating anti-fouling wear-resistance slurry on the surface of a polyurethane synthetic leather blank for the sofa; the polyurethane synthetic leather blank bottom for the sofa is formed by compounding a polyurethane film sheet and base cloth, and the polyurethane film sheet is formed by extruding polyurethane slurry through a T-shaped tape casting head; the polyurethane slurry comprises the following raw materials in parts by weight: 90 parts of waterborne polyurethane, 45 parts of N, N-dimethylformamide, 5-10 parts of superfine lignin and 28 parts of nano calcium carbonate.
The anti-fouling wear-resistant slurry comprises the following raw materials in parts by weight: 60 parts of aqueous polyurethane emulsion, 25 parts of acrylate mixture, 10 parts of dodecafluoroheptyl methacrylate, 3 parts of initiator, 15 parts of nano filler, 12 parts of nano modified gelatin and 6 parts of thickener. The acrylic ester mixture is a mixture of methyl methacrylate and butyl methacrylate according to the mass ratio of 2: 1; the nano filler is a combination of nano calcium carbonate, nano titanium dioxide and nano silicon dioxide; the grain diameter of the nano filler is less than or equal to 200 nm.
The preparation method of the nano modified gelatin comprises the following steps:
s1, adding gelatin into water, and uniformly dispersing to obtain a gelatin solution with the concentration of 20%; adding a hydrochloric acid solution with the concentration of 1mol/L into a gelatin solution, stopping adding when the pH value is 5, and stirring and dispersing uniformly to obtain a mixed solution;
s2, dissolving titanium alcohol ester in absolute ethyl alcohol, stirring until the titanium alcohol ester is completely dissolved, adding acetylacetone, heating to 45 ℃, and fully stirring and uniformly mixing to obtain a modifier;
s3, dropwise adding the modifier obtained in the step S2 into the mixed solution obtained in the step S1, heating to 45 ℃, stirring for 2-4 h, adjusting the pH value to 9.5 by ammonia water, and continuously stirring at constant temperature for 1.5h to obtain the nano modified gelatin.
The preparation method of the easy-decontamination high-abrasion-resistance synthetic leather for the sofa comprises the following steps:
(1) melting and blending the waterborne polyurethane, the N, N-dimethylformamide, the superfine lignin and the nano calcium carbonate in parts by weight, and extruding the mixture by a double-screw extruder to obtain polyurethane slurry; extruding and molding the polyurethane slurry through a T-shaped casting head to obtain a polyurethane film sheet; compounding and molding the polyurethane film with the base cloth through an embossing wheel to obtain a polyurethane synthetic leather blank bottom for the sofa;
(2) mixing the aqueous polyurethane emulsion and the acrylic acid mixture in parts by weight, fully stirring and uniformly mixing, then adding the dodecafluoroheptyl methacrylate and the initiator in parts by weight, and fully polymerizing, dispersing and emulsifying to obtain a modified aqueous polyurethane emulsion;
(3) mixing and grinding the nano filler and the nano modified gelatin in parts by weight, uniformly stirring and mixing the mixture with the modified waterborne polyurethane emulsion obtained in the step (2), adding the thickener in parts by weight, and fully and uniformly mixing to obtain the anti-fouling wear-resistant slurry;
(4) and (3) coating the anti-fouling wear-resistant slurry obtained in the step (3) on the bottom surface of the polyurethane synthetic leather blank for the sofa obtained in the step (1) through a coating process, and drying, cooling and drying to obtain the soil-release high-wear-resistant synthetic leather for the sofa.
In the step (4), the coating procedure is that the anti-fouling and wear-resistant coating obtained in the step (3) is uniformly sprayed on the bottom surface of the sofa polyurethane synthetic leather blank obtained in the step (1) through a pressurized spraying device; the coating weight was 30 g/m.
Comparative example 1
Compared with example 3, the difference is that the raw materials of the anti-fouling and wear-resisting slurry lack acrylate mixture and dodecafluoroheptyl methacrylate.
Comparative example 2
Compared with example 3, the difference is that the raw materials of the anti-fouling and wear-resisting slurry lack the nano-modified gelatin.
Test examples
In order to determine the performance of the soil-release high-wear-resistance synthetic leather for the sofa prepared by the invention, the soil-release high-wear-resistance synthetic leather for the sofa prepared in examples 1 to 6 and the soil-release high-wear-resistance synthetic leather for the sofa prepared in comparative examples 1 and 2 are respectively subjected to performance tests:
(1) and (3) testing the wear resistance of the synthetic leather: according to GB/T3920-2008 'color fastness test of textiles-rubbing color fastness', an HT-1004 Martindale abrasion resistance tester is adopted to test, and the effective size diameter of a test sample is 2.8 cm.
The test results are shown in tables 1 and 2:
TABLE 1
Example 1 Example 2 Example 3 Example 4 Example 5 Example 6
Wear resistance/time 2.5 ten thousand 2.8 ten thousand 2.8 ten thousand 2.6 ten thousand 2.7 ten thousand 2.8 ten thousand
TABLE 2
Example 3 Comparative example 1 Comparative example 2
Wear resistance/time 2.8 ten thousand 1.5 ten thousand 1.3 ten thousand
(2) And (3) testing the wear resistance of the synthetic leather: setting the effective size of the sample with the outer diameter of 108cm and the inner diameter of 8mm, and measuring the wear resistance of the synthetic leather product by using a TABER wear resistance tester.
The test results are shown in table 3:
TABLE 3
Example 1 Example 2 Example 3 Example 4 Example 5 Example 6
Wear resistance/time 1900 2000 2100 2000 1900 2000
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the embodiment of the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The easy-to-clean high-wear-resistance synthetic leather for the sofa is characterized by being prepared by coating anti-soil wear-resistance slurry on the surface of a polyurethane synthetic leather blank for the sofa; the polyurethane synthetic leather blank bottom for the sofa is formed by compounding a polyurethane film sheet and base cloth, and the polyurethane film sheet is formed by extruding polyurethane slurry through a T-shaped tape casting head; the polyurethane slurry comprises the following raw materials in parts by weight: 60-90 parts of waterborne polyurethane, 30-45 parts of N, N-dimethylformamide, 5-10 parts of ultrafine lignin and 10-28 parts of nano calcium carbonate.
2. The easy-to-clean high-abrasion-resistant synthetic leather for the sofa according to claim 1, wherein the anti-soil abrasion-resistant slurry comprises the following raw materials in parts by weight: 35 to 60 parts of aqueous polyurethane emulsion, 15 to 25 parts of acrylate mixture, 5 to 10 parts of dodecafluoroheptyl methacrylate, 1 to 3 parts of initiator, 5 to 15 parts of nano filler, 6 to 12 parts of nano modified gelatin and 2 to 6 parts of thickener.
3. The easy-to-clean high-abrasion-resistance synthetic leather for the sofa according to claim 2, wherein the anti-soil abrasion-resistance slurry comprises the following raw materials in parts by weight: 45 parts of aqueous polyurethane emulsion, 17 parts of acrylate mixture, 8 parts of dodecafluoroheptyl methacrylate, 2.2 parts of initiator, 8 parts of nano filler, 8 parts of nano modified gelatin and 3 parts of thickener.
4. The easy-to-clean high-abrasion-resistance synthetic leather for the sofa according to claim 2, wherein the acrylate mixture is a mixture of methyl methacrylate and butyl methacrylate according to a mass ratio of 1-2: 1.
5. The easy-to-clean high-abrasion-resistant synthetic leather for the sofa according to claim 2, wherein the nano filler is any one or a combination of more than two of nano calcium carbonate, nano titanium dioxide, nano silicon dioxide and nano zinc dioxide; the grain diameter of the nano filler is less than or equal to 200 nm.
6. The easy-to-clean high-abrasion-resistance synthetic leather for the sofa according to claim 2, wherein the preparation method of the nano modified gelatin comprises the following steps:
s1, adding gelatin into water, and uniformly dispersing to obtain a gelatin solution with the concentration of 20%; adding a hydrochloric acid solution with the concentration of 1mol/L into a gelatin solution, stopping adding when the pH value is 3-5, and stirring and dispersing uniformly to obtain a mixed solution;
s2, dissolving titanium alcohol ester in absolute ethyl alcohol, stirring until the titanium alcohol ester is completely dissolved, adding acetylacetone, heating to 30-45 ℃, and fully stirring and uniformly mixing to obtain a modifier;
s3, dropwise adding the modifier obtained in the step S2 into the mixed solution obtained in the step S1, heating to 30-45 ℃, stirring for 2-4 h, adjusting the pH value to 8-9.5 with ammonia water, and continuously stirring for 1-1.5 h at constant temperature to obtain the nano modified gelatin.
7. The preparation method of the soil-release high-wear-resistance synthetic leather for the sofa according to any one of claims 1 to 6, which is characterized by comprising the following steps:
(1) melting and blending the waterborne polyurethane, the N, N-dimethylformamide, the superfine lignin and the nano calcium carbonate in parts by weight, and extruding the mixture by a double-screw extruder to obtain polyurethane slurry; extruding and molding the polyurethane slurry through a T-shaped casting head to obtain a polyurethane film sheet; compounding and molding the polyurethane film with the base cloth through an embossing wheel to obtain a polyurethane synthetic leather blank bottom for the sofa;
(2) mixing the waterborne polyurethane emulsion with the acrylic acid mixture in parts by weight, fully stirring and uniformly mixing, then adding the dodecafluoroheptyl methacrylate and the initiator in parts by weight, and fully polymerizing, dispersing and emulsifying to obtain a modified waterborne polyurethane emulsion;
(3) mixing and grinding the nano filler and the nano modified gelatin in parts by weight, uniformly stirring and mixing the mixture with the modified waterborne polyurethane emulsion obtained in the step (2), adding the thickener in parts by weight, and fully and uniformly mixing to obtain the anti-fouling wear-resistant slurry;
(4) and (3) coating the anti-fouling wear-resistant slurry obtained in the step (3) on the bottom surface of the polyurethane synthetic leather blank for the sofa obtained in the step (1) through a coating process, and drying, cooling and drying to obtain the soil-release high-wear-resistant synthetic leather for the sofa.
8. The method for preparing the soil-release high-abrasion-resistance synthetic leather for the sofa according to claim 7, wherein in the step (4), the coating procedure is that the sprayed soil-resistant abrasion-resistance slurry obtained in the step (3) is uniformly sprayed on the bottom surface of the polyurethane synthetic leather blank for the sofa obtained in the step (1) through a pressurized spraying device; the coating weight is 20g/m to 30 g/m.
CN202111264858.5A 2021-10-28 2021-10-28 Easy-to-decontaminate high-wear-resistance synthetic leather for sofa and preparation method thereof Active CN113863017B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111264858.5A CN113863017B (en) 2021-10-28 2021-10-28 Easy-to-decontaminate high-wear-resistance synthetic leather for sofa and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111264858.5A CN113863017B (en) 2021-10-28 2021-10-28 Easy-to-decontaminate high-wear-resistance synthetic leather for sofa and preparation method thereof

Publications (2)

Publication Number Publication Date
CN113863017A true CN113863017A (en) 2021-12-31
CN113863017B CN113863017B (en) 2024-02-09

Family

ID=78998323

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111264858.5A Active CN113863017B (en) 2021-10-28 2021-10-28 Easy-to-decontaminate high-wear-resistance synthetic leather for sofa and preparation method thereof

Country Status (1)

Country Link
CN (1) CN113863017B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117702501A (en) * 2023-11-28 2024-03-15 佛山市威弘皮革有限公司 Multi-step treatment process for artificial leather

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101748607A (en) * 2009-12-18 2010-06-23 安徽安利合成革股份有限公司 Method for producing easy-to-clean high-wearing durable synthetic leather for sofa furniture
CN103556471A (en) * 2013-10-22 2014-02-05 安徽安利合成革股份有限公司 Method for producing matte easily decontaminated polyurethane synthesized leather
CN104179017A (en) * 2014-08-01 2014-12-03 陕西科技大学 Aqueous surface treatment sizing agent and method for cleanly producing soil-releasing synthetic leather
CN104479532A (en) * 2014-12-17 2015-04-01 广东菲安妮皮具股份有限公司 Leather surface treating agent
CN105133368A (en) * 2015-08-25 2015-12-09 浙江繁盛超纤制品有限公司 Aqueous polyurethane superfine fiber sofa synthetic leather direct-coating process
CN205711512U (en) * 2015-10-27 2016-11-23 清远市齐力合成革有限公司 One is wear-resisting scrapes anti-hands trace Synthetic Leather
CN107418432A (en) * 2017-08-29 2017-12-01 南通亚振东方家具有限公司 A kind of method that leather stability and durability are improved based on nano titanium oxide
CN107558245A (en) * 2017-09-11 2018-01-09 遂昌玄乐炭复合材料有限公司 A kind of environment-friendly type aqueous synthetic leather bass of adsorptivity and its preparation method
CN107603442A (en) * 2017-09-11 2018-01-19 遂昌玄乐炭复合材料有限公司 A kind of bamboo Charcoal Adsorption environment-friendly type synthetic leather aqueous polyurethane coating and its Waterborne synthetic leather bass of preparation
CN112195662A (en) * 2020-09-30 2021-01-08 安徽安利材料科技股份有限公司 Waterborne polyurethane synthetic leather for solvent-free women's shoes and bags and preparation method thereof

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101748607A (en) * 2009-12-18 2010-06-23 安徽安利合成革股份有限公司 Method for producing easy-to-clean high-wearing durable synthetic leather for sofa furniture
CN103556471A (en) * 2013-10-22 2014-02-05 安徽安利合成革股份有限公司 Method for producing matte easily decontaminated polyurethane synthesized leather
CN104179017A (en) * 2014-08-01 2014-12-03 陕西科技大学 Aqueous surface treatment sizing agent and method for cleanly producing soil-releasing synthetic leather
CN104479532A (en) * 2014-12-17 2015-04-01 广东菲安妮皮具股份有限公司 Leather surface treating agent
CN105133368A (en) * 2015-08-25 2015-12-09 浙江繁盛超纤制品有限公司 Aqueous polyurethane superfine fiber sofa synthetic leather direct-coating process
CN205711512U (en) * 2015-10-27 2016-11-23 清远市齐力合成革有限公司 One is wear-resisting scrapes anti-hands trace Synthetic Leather
CN107418432A (en) * 2017-08-29 2017-12-01 南通亚振东方家具有限公司 A kind of method that leather stability and durability are improved based on nano titanium oxide
CN107558245A (en) * 2017-09-11 2018-01-09 遂昌玄乐炭复合材料有限公司 A kind of environment-friendly type aqueous synthetic leather bass of adsorptivity and its preparation method
CN107603442A (en) * 2017-09-11 2018-01-19 遂昌玄乐炭复合材料有限公司 A kind of bamboo Charcoal Adsorption environment-friendly type synthetic leather aqueous polyurethane coating and its Waterborne synthetic leather bass of preparation
CN112195662A (en) * 2020-09-30 2021-01-08 安徽安利材料科技股份有限公司 Waterborne polyurethane synthetic leather for solvent-free women's shoes and bags and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
石欢欢;向均;范浩军;周虎;陈意;: "纳米TiO_2改性明胶在合成革后整理中的应用", 皮革科学与工程, no. 03, pages 15 - 20 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117702501A (en) * 2023-11-28 2024-03-15 佛山市威弘皮革有限公司 Multi-step treatment process for artificial leather

Also Published As

Publication number Publication date
CN113863017B (en) 2024-02-09

Similar Documents

Publication Publication Date Title
CN104837637B (en) Fabric for digital printing pre-processes object
CN101228312A (en) Textile substrates having layered finishing structure
JP2010241963A (en) Leather imparted with antifouling property
JP5753181B2 (en) Antifouling leather
CN105419606B (en) A kind of aqueous polyurethane delustering agent and preparation method thereof
CN108129971B (en) Environment-friendly fingerprint-resistant scratch-resistant coating of film substrate and application method thereof
CN113863017A (en) Easy-to-clean high-wear-resistance synthetic leather for sofa and preparation method thereof
CN106319984B (en) A kind of aqueous matt canvas of Freehandhand-drawing and preparation method thereof
KR20050087850A (en) Coating composition for leather, coating method, and coated leather
JP2014024318A (en) Decorative sheet
CN112876958A (en) Water-based leather finishing agent and application thereof
CN106752532A (en) A kind of antifouling weather-resistant type external wall elastic plucking paint and preparation method thereof
CN110128936B (en) Surface treating agent for synthetic leather and preparation method thereof
EP1123981A1 (en) Leather coated with fluororesin
KR102054764B1 (en) A manufacturing method of artificial leather with antifouling properties
CN104774515A (en) Fingerprint-resistant scratch-resistant varnish
JP5871502B2 (en) Glossy natural leather
CN104947429A (en) Three-proof wear-resisting coating fabric as well as machining method and application thereof
CN115559125B (en) Antifouling and easy-to-clean water-based solvent-free polyurethane synthetic leather and preparation method thereof
CN108589321A (en) A kind of PU coating process
WO2019232704A1 (en) Aqueous coating composition
CN112143372B (en) Leather with wear-resistant self-cleaning function and application thereof
CN114481644A (en) Waterborne polyurethane synthetic leather and preparation method thereof
CN101284967B (en) Material for spray painting and polishing chemical leather
CN110982405B (en) Anti-doodling surface treatment liquid and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant