CN114481644A - Waterborne polyurethane synthetic leather and preparation method thereof - Google Patents
Waterborne polyurethane synthetic leather and preparation method thereof Download PDFInfo
- Publication number
- CN114481644A CN114481644A CN202210083972.6A CN202210083972A CN114481644A CN 114481644 A CN114481644 A CN 114481644A CN 202210083972 A CN202210083972 A CN 202210083972A CN 114481644 A CN114481644 A CN 114481644A
- Authority
- CN
- China
- Prior art keywords
- layer
- aqueous
- synthetic leather
- pvc
- waterborne polyurethane
- 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
Links
- 239000002649 leather substitute Substances 0.000 title claims abstract description 52
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 35
- 239000004814 polyurethane Substances 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000010410 layer Substances 0.000 claims abstract description 83
- 239000004744 fabric Substances 0.000 claims abstract description 58
- 239000002344 surface layer Substances 0.000 claims abstract description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000002791 soaking Methods 0.000 claims abstract description 27
- 239000002002 slurry Substances 0.000 claims abstract description 20
- 239000002245 particle Substances 0.000 claims abstract description 16
- 238000003490 calendering Methods 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 239000011248 coating agent Substances 0.000 claims abstract description 6
- 238000000576 coating method Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000005303 weighing Methods 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 238000005096 rolling process Methods 0.000 claims abstract description 5
- 239000002562 thickening agent Substances 0.000 claims description 28
- 239000002518 antifoaming agent Substances 0.000 claims description 18
- 239000003795 chemical substances by application Substances 0.000 claims description 17
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Chemical compound CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 claims description 14
- 229920005749 polyurethane resin Polymers 0.000 claims description 13
- 239000003063 flame retardant Substances 0.000 claims description 11
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 10
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 6
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 6
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 6
- -1 polydimethylsiloxane Polymers 0.000 claims description 6
- 229920000570 polyether Polymers 0.000 claims description 6
- CHUGKEQJSLOLHL-UHFFFAOYSA-N 2,2-Bis(bromomethyl)propane-1,3-diol Chemical group OCC(CO)(CBr)CBr CHUGKEQJSLOLHL-UHFFFAOYSA-N 0.000 claims description 5
- 229920003063 hydroxymethyl cellulose Polymers 0.000 claims description 5
- 229940031574 hydroxymethyl cellulose Drugs 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 2
- 239000010985 leather Substances 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 11
- 238000003756 stirring Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 230000007480 spreading Effects 0.000 description 3
- 238000003892 spreading Methods 0.000 description 3
- 239000013530 defoamer Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920001410 Microfiber Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000010998 test method Methods 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
- D06N3/18—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials
- D06N3/183—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials the layers are one next to the other
-
- 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
-
- 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
- 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
- D06N2209/06—Properties of the materials having thermal properties
- D06N2209/067—Flame resistant, fire 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
- D06N2209/08—Properties of the materials having optical properties
- D06N2209/0838—Bright, glossy, shiny surface
-
- 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
- D06N2209/10—Properties of the materials having mechanical properties
- D06N2209/103—Resistant to mechanical forces, e.g. shock, impact, puncture, flexion, shear, compression, tear
-
- 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
- D06N2209/1642—Hardnes
-
- 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
- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/28—Artificial leather
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
The application relates to the field of synthetic leather, and particularly discloses waterborne polyurethane synthetic leather and a preparation method thereof. Because set up the PVC layer on the base cloth layer, PVC layer surface flatness is high, consequently after aqueous surface course coats the PVC layer, can improve the surface flatness of aqueous surface course. The application also discloses a preparation method of the waterborne polyurethane synthetic leather, which comprises the following steps: preparing materials: weighing and mixing the raw materials to obtain an aqueous soak solution and aqueous surface layer slurry; preparing a base fabric layer: soaking the superfine fiber base cloth in an aqueous soaking solution for 3-5min, taking out and drying to obtain a base cloth layer; PVC calendering: heating PVC particles and then rolling the PVC particles on the base cloth layer to form a PVC layer; preparing a water-based surface layer: and coating aqueous surface layer slurry on the PVC layer to obtain the aqueous polyurethane synthetic leather.
Description
Technical Field
The application relates to the field of synthetic leather, in particular to waterborne polyurethane synthetic leather and a preparation method thereof.
Background
Synthetic leather is a plastic product which simulates the composition and structure of natural leather and can be used as a material to be used, and is usually prepared by taking impregnated non-woven fabric as a net layer and a microporous polyurethane layer as a grain surface layer. The front and back surfaces of the leather are very similar to leather, have certain air permeability and are closer to natural leather than common artificial leather. It is widely used for making shoes, boots, bags, balls, etc.
The waterborne polyurethane synthetic leather has soft and natural gloss and soft hand feeling, and the waterborne polyurethane synthetic leather has become the industry development direction as the best substitute product of solvent type synthetic leather. However, the synthetic leather is only processed by using the aqueous polyurethane material, so that the synthetic leather has certain limitations, the surface smoothness is poor, the wear-resistant strength is not high, and the synthetic leather needs to be further improved.
Disclosure of Invention
In order to improve the smoothness of the waterborne polyurethane synthetic leather, the application provides the waterborne polyurethane synthetic leather and a preparation method thereof. In a first aspect, the application provides a waterborne polyurethane synthetic leather, which adopts the following technical scheme:
the waterborne polyurethane synthetic leather comprises a base cloth layer, a PVC layer and a waterborne surface layer, wherein the PVC layer is positioned between the base cloth layer and the waterborne surface layer.
By adopting the technical scheme, the base cloth layer keeps the tensile property of the synthetic leather, so that the synthetic leather is not easy to tear, the PVC layer endows the synthetic leather with higher ground wear resistance and better surface smoothness, the water-based surface layer has the characteristics of soft luster, nature and soft hand feeling, and has the mechanical properties of wear resistance and ageing resistance and the appearance close to the real leather, therefore, the synthetic leather has good surface smoothness and strong wear resistance and is suitable for further popularization and use.
In a specific possible embodiment, the aqueous surface layer comprises the following raw materials in parts by weight:
100 parts of waterborne polyurethane resin;
1-2 parts of a leveling agent;
0.1-0.2 part of defoaming agent;
1-3 parts of a thickening agent;
5-12 parts of color paste.
By adopting the technical scheme, the water-based surface layer is coated on the PVC layer, the main material of the water-based surface layer is water-based polyurethane resin, the water-based polyurethane resin has genuine leather texture, and meanwhile, the leveling agent can enable the water-based surface layer to be more easily coated, so that the surface of the water-based surface layer is smoother; the thickening agent can enhance the viscosity degree of the waterborne polyurethane, so that the waterborne polyurethane can be better adhered to the PVC layer; the defoaming agent can eliminate bubbles generated in the aqueous polyurethane, so that the interior of the aqueous surface layer is more compact and the surface is more smooth; the color paste can change the color of the water-based surface layer, thereby improving the aesthetic property of the synthetic leather.
In a specific embodiment, the base fabric layer comprises an ultrafine fiber base fabric and an aqueous soaking solution.
By adopting the technical scheme, the superfine fiber base cloth is used as the main body material of the base cloth layer, the superfine fiber base cloth is not easy to tear and has better flexibility, after the superfine fiber base cloth is soaked in the water-based soaking solution, the water-based soaking solution is filled in gaps in the superfine fiber base cloth, so that the base cloth layer is more compact, and meanwhile, the base cloth layer is used as the inner layer of the synthetic leather and can also endow the synthetic leather with better texture and wear resistance.
In a specific embodiment, the leveling agent is one or two of diacetone alcohol and hydroxymethyl cellulose.
In a specific possible embodiment, the defoaming agent is polyether modified polydimethylsiloxane and a defoaming agent RK-630D.
In a specific embodiment, the thickener is one or two of thickener PU-40 and thickener 660.
In a specific embodiment, the aqueous soaking solution comprises the following raw materials in parts by weight:
100 parts of waterborne polyurethane resin;
water 300-;
20-30 parts of a flame retardant;
0.5-3 parts of color paste.
By adopting the technical scheme, the leather texture of the base cloth layer is improved by the waterborne polyurethane resin, the color paste is used for adjusting the color of the base cloth layer, the fire resistance of the synthetic leather is improved by the fire retardant, the combustion condition of the base cloth layer is improved, and the use safety of the synthetic leather is improved.
In a specific embodiment, the flame retardant is dibromoneopentyl glycol.
In a second aspect, the application provides a preparation method of waterborne polyurethane synthetic leather, comprising the following steps:
preparing materials: weighing and mixing the raw materials to obtain an aqueous soak solution and aqueous surface layer slurry;
preparing a base fabric layer: soaking the superfine fiber base cloth in an aqueous soaking solution for 3-5min, taking out and drying to obtain a base cloth layer;
PVC calendering: heating PVC particles and then rolling the PVC particles on the base cloth layer to form a PVC layer;
preparing a water-based surface layer: and coating the aqueous surface layer slurry on the PVC layer, drying the aqueous surface layer slurry, and forming the aqueous surface layer to obtain the aqueous polyurethane synthetic leather.
By adopting the technical scheme, the superfine fiber base cloth is combined with the aqueous soaking solution through soaking, the dried superfine fiber base cloth has stronger wear resistance and better geological feeling, PVC particles are adhered to the base cloth layer after being melted through calendering, the PVC layer formed through calendering has high flatness and good wear resistance, and after the aqueous surface layer is coated on the PVC layer, the synthetic leather has the texture close to real leather.
In summary, the present application has the following beneficial effects:
1. owing to set up the PVC layer on the base cloth layer, PVC layer surface smoothness is high, consequently after aqueous surface course coats the PVC layer, can improve the surface smoothness of aqueous surface course to make the synthetic leather have and use experience better.
2. In the application, the waterborne polyurethane is preferably used as the resin material of the waterborne surface layer, and the waterborne polyurethane has the advantages of non-inflammability, small smell, no environmental pollution, energy conservation, convenience in operation and processing and the like.
3. According to the method, the PVC layer is connected with the base cloth layer through rolling, the bonding strength of the PVC layer and the base cloth layer is improved, the stability of the synthetic leather is improved, the synthetic leather layers are not prone to cracking, and the surface flatness of the PVC layer is improved through rolling.
Detailed Description
Table 1: the source and the type of each raw material component
Examples
Example 1
Preparing materials: weighing 100kg of aqueous polyurethane resin and 1kg of leveling agent; 0.1kg of defoaming agent; 1kg of thickening agent; 5kg of color paste is stirred for 20min to prepare aqueous surface layer slurry, the flatting agent adopts diacetone alcohol, the defoaming agent adopts polyether modified polydimethylsiloxane, and the thickening agent adopts thickening agent PU-40; 100kg of aqueous polyurethane resin, 300 kg of water and 20 kg of flame retardant, wherein the flame retardant is dibromoneopentyl glycol and 0.5kg of color paste, and the aqueous soaking solution is prepared by stirring for 30 min.
Preparing a base fabric layer: soaking the superfine fiber base cloth in an aqueous soaking solution for 3min, taking out and drying to obtain a base cloth layer;
PVC calendering: heating PVC particles to 170 ℃ for melting and softening, spreading the PVC particles on a base cloth layer for calendering, and naturally cooling the PVC particles to room temperature after the calendering is finished to form a PVC layer;
preparing a water-based surface layer: and coating the aqueous surface layer slurry on the PVC layer, drying the aqueous surface layer slurry, and forming the aqueous surface layer to obtain the aqueous polyurethane synthetic leather.
Example 2
Preparing materials: weighing 100kg of aqueous polyurethane resin and 2kg of flatting agent; 0.3kg of defoaming agent; 3kg of thickening agent; stirring 12kg of color paste for 30min to prepare water-based surface layer slurry, wherein the leveling agent adopts diacetone alcohol, the defoaming agent adopts polyether modified polydimethylsiloxane, and the thickening agent adopts thickening agent PU-40; 100kg of aqueous polyurethane resin, 400 kg of water and 30kg of flame retardant, wherein the flame retardant is dibromoneopentyl glycol and 3kg of color paste, and the aqueous soaking solution is prepared by stirring for 30 min.
Preparing a base fabric layer: soaking the superfine fiber base cloth in an aqueous soaking solution for 5min, taking out and drying to obtain a base cloth layer;
PVC calendering: heating PVC particles to 170 ℃ for melting and softening, spreading the PVC particles on a base cloth layer for calendering, and naturally cooling the PVC particles to room temperature after the calendering is finished to form a PVC layer;
preparing a water-based surface layer: and coating the aqueous surface layer slurry on the PVC layer, drying the aqueous surface layer slurry, and forming the aqueous surface layer to obtain the aqueous polyurethane synthetic leather.
Example 3
Preparing materials: weighing 100kg of aqueous polyurethane resin and 1.5kg of flatting agent; 0.15kg of defoaming agent; 2kg of thickening agent; stirring 8kg of color paste for 30min to prepare water-based surface layer slurry, wherein the leveling agent adopts diacetone alcohol, the defoaming agent adopts polyether modified polydimethylsiloxane, and the thickening agent adopts thickening agent PU-40; 100kg of aqueous polyurethane resin, 350kg of water and 25kg of flame retardant, wherein the flame retardant is dibromoneopentyl glycol and 2kg of color paste, and the aqueous soaking solution is prepared by stirring for 30 min.
Preparing a base fabric layer: soaking the superfine fiber base cloth in an aqueous soaking solution for 4min, taking out and drying to obtain a base cloth layer;
PVC calendering: heating PVC particles to 170 ℃ for melting and softening, spreading the PVC particles on a base cloth layer for calendering, and naturally cooling the PVC particles to room temperature after the calendering is finished to form a PVC layer;
preparing a water-based surface layer: and coating the aqueous surface layer slurry on the PVC layer, drying the aqueous surface layer slurry, and forming the aqueous surface layer to obtain the aqueous polyurethane synthetic leather.
Example 4
Example 4 differs from example 3 only in that 0.75kg of diacetone alcohol and 0.75kg of hydroxymethyl cellulose are used as the leveling agent in example 4.
Example 5
Example 5 differs from example 3 only in that 1.5kg of hydroxymethyl cellulose is used as the leveling agent in example 5.
Example 6
Example 6 differs from example 3 only in that the defoamer in example 6 employs 0.075kg of polyether modified polydimethylsiloxane and 0.075kg of defoamer RK-630D.
Example 7
Example 7 differs from example 3 only in that the antifoam in example 7 used 0.15kg of antifoam RK-630D.
Example 8
Example 8 differs from example 3 only in that the thickener in example 8 used 1kg of thickener PU-40 and 1kg of thickener 660.
Example 9
Example 9 differs from example 3 only in that the thickener in example 9 employed 2kg of thickener 660.
Example 10
Example 10 differs from example 3 only in that the base fabric layer in example 10 was not soaked in an aqueous soaking solution.
Example 11
Example 11 differs from example 3 only in that the addition amount of the leveling agent in example 11 is 0.
Example 12
Example 12 differs from example 3 only in that the amount of the antifoaming agent added in example 12 is 0.
Example 13
Example 13 differs from example 3 only in that the thickener in example 13 was added in an amount of 0.
Example 14
Example 14 differs from example 3 only in that the color paste in example 14 was added in an amount of 1.5 kg.
Example 15
Example 15 differs from example 3 only in that the color paste in example 15 was added in an amount of 2.5 kg.
Example 16
Example 16 differs from example 3 only in that the amount of water added in example 16 was 200 kg.
Example 17
Example 17 differs from example 3 only in that the amount of water added in example 17 was 500 kg.
Comparative example
Comparative example 1
Comparative example 1 differs from example 3 only in that comparative example 1 does not contain a PVC layer.
Comparative example 2
Comparative example 2 differs from example 3 only in that comparative example 2 does not comprise an aqueous top coat.
Performance test
Detection method/test method
1. The abrasion resistance of the aqueous top layer of each example and each comparative example was tested according to QB/T2726 2005, "determination of abrasion resistance of leather physical and mechanical tests". The test grades are divided into five grades: A. the abrasion is obvious; B. the abrasion is obvious; C. the wear energy is respectively; D. wear is difficult to see; E. wear is not visible.
QB/T3812.5-99 measurement of tensile Strength and elongation of leather the tensile strength and elongation of the synthetic leathers of the examples and comparative examples were measured.
Results and analysis of results
Table 2: experimental data for each example and each comparative example
Analysis of results
By combining the examples 1-3, the comparative examples 1-2 and the table 2, the base fabric layer, the PVC layer and the aqueous surface layer are combined with each other, the base fabric layer provides better flexibility, after the superfine fiber base fabric is soaked in the aqueous soaking solution, the superfine fiber base fabric has better hand feeling and texture closer to real leather, the PVC layer formed by calendering has stronger surface smoothness, and the aqueous surface layer is coated on the PVC layer, so the aqueous surface layer also has better surface smoothness, the aqueous surface layer adopts aqueous polyurethane as a base material, and the leveling agent, the thickening agent and the defoaming agent are added, so that the aqueous surface layer has texture closer to real leather. And meanwhile, the PVC has better wear resistance and mechanical strength, and the mechanical property of the synthetic leather can be improved.
Combining examples 3-5, 11 and table 2, the addition of the leveling agent can enhance the tensile strength and elongation at break of the synthetic leather, and also make the aqueous surface layer easier to coat, and the effect of diacetone alcohol in the leveling agent is slightly better than that of hydroxymethyl cellulose.
By combining the embodiment 3, the embodiment 12, the embodiment 6-the embodiment 7 and the table 2, the defoaming agent can reduce the surface tension of the aqueous surface layer slurry and reduce the formation of foam in the aqueous surface layer slurry, so that the aqueous surface layer can be smoother and compacter.
By combining example 3, example 13, example 8 to example 8 and table 2, the addition of the thickener can enhance the viscosity degree of the aqueous surface layer, thereby enhancing the wear resistance of the aqueous surface layer, and also improving the connection strength of the aqueous surface layer slurry and the PVC layer, and in addition, the thickener PU-40 in the application has better effect than the thickener 660.
In combination with example 3 and example 10 and table 2, the base fabric layer was not immersed in the aqueous immersion liquid, the bonding strength between the base fabric layer and the PVC layer was reduced, and the hand feeling of the base fabric layer was deteriorated.
By combining the embodiment 3, the embodiment 13 to the embodiment 14 and the table 2, the more the color paste is added, the poorer the mechanical property of the synthetic leather is, the color paste plays a role in color mixing, and the mechanical property of the synthetic leather is adversely affected when the color paste is too much, so that the color paste has a smaller influence in the color paste mixing range of the embodiments 1 to 3 of the application.
Combining example 3 with example 16 to example 17 and table 2, the water-based soaking solution is too diluted when too much water is added, and the viscosity of the water-based soaking solution is too high when too little water is added, so the water ratio in examples 1 to 3 of the present application can achieve better effects.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (9)
1. The waterborne polyurethane synthetic leather is characterized by comprising a base cloth layer, a PVC layer and a waterborne surface layer, wherein the PVC layer is positioned between the base cloth layer and the waterborne surface layer.
2. The waterborne polyurethane synthetic leather of claim 1, wherein: the water-based surface layer comprises the following raw materials in parts by weight:
100 parts of waterborne polyurethane resin;
1-2 parts of a leveling agent;
0.1-0.2 part of defoaming agent;
1-3 parts of a thickening agent;
5-12 parts of color paste.
3. The waterborne polyurethane synthetic leather of claim 2, wherein: the base cloth layer comprises superfine fiber base cloth and water-based soaking liquid.
4. The waterborne polyurethane synthetic leather of claim 2, wherein: the leveling agent is one or two of diacetone alcohol and hydroxymethyl cellulose.
5. The waterborne polyurethane synthetic leather of claim 2, wherein: the defoaming agent is polyether modified polydimethylsiloxane and a defoaming agent RK-630D.
6. The waterborne polyurethane synthetic leather of claim 2, wherein: the thickening agent is one or two of thickening agent PU-40 and thickening agent 660.
7. The waterborne polyurethane synthetic leather of claim 3, wherein: the aqueous soaking solution comprises the following raw materials in parts by weight:
100 parts of waterborne polyurethane resin;
water 300-;
20-30 parts of a flame retardant;
0.5-3 parts of color paste.
8. The waterborne polyurethane synthetic leather of claim 7, wherein: the flame retardant is dibromoneopentyl glycol.
9. The method for preparing the waterborne polyurethane synthetic leather according to any one of claims 1 to 8, wherein the method comprises the following steps: the method comprises the following steps:
preparing materials: weighing and mixing the raw materials to obtain an aqueous soak solution and aqueous surface layer slurry;
preparing a base fabric layer: soaking the superfine fiber base cloth in an aqueous soaking solution for 3-5min, taking out and drying to obtain a base cloth layer;
PVC calendering: heating PVC particles and then rolling the PVC particles on the base cloth layer to form a PVC layer;
preparing a water-based surface layer: and coating the aqueous surface layer slurry on the PVC layer, drying the aqueous surface layer slurry, and forming the aqueous surface layer to obtain the aqueous polyurethane synthetic leather.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210083972.6A CN114481644B (en) | 2022-01-25 | 2022-01-25 | Waterborne polyurethane synthetic leather and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210083972.6A CN114481644B (en) | 2022-01-25 | 2022-01-25 | Waterborne polyurethane synthetic leather and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114481644A true CN114481644A (en) | 2022-05-13 |
| CN114481644B CN114481644B (en) | 2023-11-24 |
Family
ID=81474545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210083972.6A Active CN114481644B (en) | 2022-01-25 | 2022-01-25 | Waterborne polyurethane synthetic leather and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114481644B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115467174A (en) * | 2022-08-10 | 2022-12-13 | 苏州瑞高新材料有限公司 | Conductive PU synthetic leather and preparation method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010011731A (en) * | 1999-07-30 | 2001-02-15 | 빌.씨. 첸(Bill. C. Chen) | Process for producing polyurethane synthetic leather |
| CN102433765A (en) * | 2011-11-09 | 2012-05-02 | 四川大学 | Method for manufacturing environment-friendly semi-polyurethane leather |
| WO2015058419A1 (en) * | 2013-10-27 | 2015-04-30 | 江苏国信合成革有限公司 | Environmentally friendly garment leather and preparation method thereof |
| CN105507009A (en) * | 2016-01-26 | 2016-04-20 | 芜湖环瑞汽车内饰件有限公司 | Slow-springback and bending-resistance micro-fiber polyurethane automobile interior leather and preparation method thereof |
| CN106758273A (en) * | 2016-12-01 | 2017-05-31 | 南平博士达节能科技有限公司 | Suitable for the preparation method of the environmentally friendly super fiber leather of automotive trim |
| CN106948181A (en) * | 2017-05-27 | 2017-07-14 | 福建宝利特科技股份有限公司 | The preparation method of superfine fiber chemical leather and preparation method thereof and its bottom base |
| CN108547158A (en) * | 2018-05-15 | 2018-09-18 | 佛山市高明威仕达塑料有限公司 | A kind of aqueous coating sofa artificial leather and preparation method thereof |
| CN108824008A (en) * | 2018-07-10 | 2018-11-16 | 福建宝利特科技股份有限公司 | A kind of PU/PVC composite artificial leather of imitative superfine fibre and preparation method thereof |
| CN111607974A (en) * | 2020-05-14 | 2020-09-01 | 加通汽车内饰(常熟)有限公司 | Artificial leather with good wear resistance and skin-like hand feeling and preparation method thereof |
| CN112342797A (en) * | 2020-11-27 | 2021-02-09 | 苏州瑞高新材料有限公司 | Waterborne polyurethane/TPU synthetic leather |
-
2022
- 2022-01-25 CN CN202210083972.6A patent/CN114481644B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010011731A (en) * | 1999-07-30 | 2001-02-15 | 빌.씨. 첸(Bill. C. Chen) | Process for producing polyurethane synthetic leather |
| CN102433765A (en) * | 2011-11-09 | 2012-05-02 | 四川大学 | Method for manufacturing environment-friendly semi-polyurethane leather |
| WO2015058419A1 (en) * | 2013-10-27 | 2015-04-30 | 江苏国信合成革有限公司 | Environmentally friendly garment leather and preparation method thereof |
| CN105507009A (en) * | 2016-01-26 | 2016-04-20 | 芜湖环瑞汽车内饰件有限公司 | Slow-springback and bending-resistance micro-fiber polyurethane automobile interior leather and preparation method thereof |
| CN106758273A (en) * | 2016-12-01 | 2017-05-31 | 南平博士达节能科技有限公司 | Suitable for the preparation method of the environmentally friendly super fiber leather of automotive trim |
| CN106948181A (en) * | 2017-05-27 | 2017-07-14 | 福建宝利特科技股份有限公司 | The preparation method of superfine fiber chemical leather and preparation method thereof and its bottom base |
| CN108547158A (en) * | 2018-05-15 | 2018-09-18 | 佛山市高明威仕达塑料有限公司 | A kind of aqueous coating sofa artificial leather and preparation method thereof |
| CN108824008A (en) * | 2018-07-10 | 2018-11-16 | 福建宝利特科技股份有限公司 | A kind of PU/PVC composite artificial leather of imitative superfine fibre and preparation method thereof |
| CN111607974A (en) * | 2020-05-14 | 2020-09-01 | 加通汽车内饰(常熟)有限公司 | Artificial leather with good wear resistance and skin-like hand feeling and preparation method thereof |
| CN112342797A (en) * | 2020-11-27 | 2021-02-09 | 苏州瑞高新材料有限公司 | Waterborne polyurethane/TPU synthetic leather |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115467174A (en) * | 2022-08-10 | 2022-12-13 | 苏州瑞高新材料有限公司 | Conductive PU synthetic leather and preparation method thereof |
| CN115467174B (en) * | 2022-08-10 | 2024-05-03 | 苏州瑞高新材料股份有限公司 | Conductive PU synthetic leather and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114481644B (en) | 2023-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103669021B (en) | A kind of low energy consumption ecological artificial leather manufacture method | |
| CN100458010C (en) | Process of producing fireproof sofa artificial leather | |
| KR100822641B1 (en) | Textile coating method with water urethane emulsion | |
| CN105821670A (en) | Novel textile downproof technology | |
| CN104163909B (en) | Polyurethane resin for hydrolysis-resistant sofa leather and preparation method thereof | |
| CN108049195B (en) | Method for preparing waterborne polyurethane regenerated leather by wet method | |
| CN103255639A (en) | Environmentally-friendly polyurethane leather, preparation method and product thereof | |
| CN104499293B (en) | A kind of Waterproof Breathable grid PRINTED FABRIC and preparation method thereof | |
| CN109112846B (en) | High-strength wear-resistant coated PVC artificial leather | |
| CN107287920A (en) | A kind of waterproof anti-dye bar code printing trademark belt and its preparation technology | |
| CN114481644A (en) | Waterborne polyurethane synthetic leather and preparation method thereof | |
| CN106087459A (en) | A kind of high voltage bearing aqueous foaming raincoat leather | |
| CN104530382B (en) | A kind of imitated microfiber synthetic leather wet polyurethane resin and preparation method thereof | |
| CN102182066B (en) | Soft crazy-horse resin for clothing leather and preparation method thereof | |
| CN110128936B (en) | Surface treating agent for synthetic leather and preparation method thereof | |
| CN113622201B (en) | Polyurethane synthetic leather with high moisture absorption and air permeability and preparation method thereof | |
| CN109736098B (en) | High-hardness aqueous polyurethane textile coating adhesive and preparation method thereof | |
| CN101284941B (en) | High solid and high light resin composition for chemical leather | |
| CN108219103B (en) | Waterborne polyurethane resin and preparation method and application thereof | |
| CN116512688B (en) | Environment-friendly leather composite fabric and preparation method thereof | |
| CN107722856A (en) | A kind of novel environment friendly water proof fire retardant sail adhesive plaster and preparation method thereof | |
| CN112760992B (en) | Wear-resistant basketball leather and preparation method thereof | |
| CN111020071A (en) | Steering wheel curtain coating composite leather and preparation method thereof | |
| CN115287913A (en) | Soft suede basketball synthetic leather and preparation method thereof | |
| CN103981717A (en) | Rope head provided with coating and preparation method of rope head |
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 | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230905 Address after: No. 88, Jilongshan Road, He County Economic Development Zone, Ma'anshan City, Anhui Province Applicant after: Ma'anshan Rui High tech Co.,Ltd. Address before: 215000 Luhe Luchang Road, Huangjing Town, Taicang City, Suzhou City, Jiangsu Province Applicant before: WARREN SYNTHETIC LEATHER (SUZHOU) Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Gao Jingang Inventor after: Lv Peijun Inventor after: Han Zijun Inventor after: Wang Jianwei Inventor after: Zhang Zhe Inventor before: Lv Peijun Inventor before: Han Zijun Inventor before: Wang Jianwei Inventor before: Zhang Zhe Inventor before: Gao Jingang |
|
| CB03 | Change of inventor or designer information |