CN105463867A - Method for producing aqueous polyurethane synthetic leather - Google Patents
Method for producing aqueous polyurethane synthetic leather Download PDFInfo
- Publication number
- CN105463867A CN105463867A CN201510761921.4A CN201510761921A CN105463867A CN 105463867 A CN105463867 A CN 105463867A CN 201510761921 A CN201510761921 A CN 201510761921A CN 105463867 A CN105463867 A CN 105463867A
- Authority
- CN
- China
- Prior art keywords
- synthetic leather
- parts
- aqueous
- aqueous polyurethane
- polyurethane
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Links
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 109
- 239000004814 polyurethane Substances 0.000 title claims abstract description 109
- 239000002649 leather substitute Substances 0.000 title claims abstract description 56
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 55
- 239000004744 fabric Substances 0.000 claims abstract description 37
- 239000002002 slurry Substances 0.000 claims abstract description 28
- CBOCVOKPQGJKKJ-UHFFFAOYSA-L Calcium formate Chemical compound [Ca+2].[O-]C=O.[O-]C=O CBOCVOKPQGJKKJ-UHFFFAOYSA-L 0.000 claims abstract description 15
- 239000004281 calcium formate Substances 0.000 claims abstract description 15
- 229940044172 calcium formate Drugs 0.000 claims abstract description 15
- 235000019255 calcium formate Nutrition 0.000 claims abstract description 15
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims abstract description 14
- 239000001110 calcium chloride Substances 0.000 claims abstract description 14
- 229910001628 calcium chloride Inorganic materials 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 239000000049 pigment Substances 0.000 claims abstract description 8
- 239000006260 foam Substances 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 5
- 239000010985 leather Substances 0.000 claims description 27
- 239000003795 chemical substances by application Substances 0.000 claims description 22
- 239000008394 flocculating agent Substances 0.000 claims description 19
- 238000007598 dipping method Methods 0.000 claims description 16
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 14
- 238000005187 foaming Methods 0.000 claims description 13
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims description 10
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 10
- 239000001099 ammonium carbonate Substances 0.000 claims description 10
- 235000012501 ammonium carbonate Nutrition 0.000 claims description 10
- 238000005470 impregnation Methods 0.000 claims description 10
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 7
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000005543 nano-size silicon particle Substances 0.000 claims description 7
- 235000010413 sodium alginate Nutrition 0.000 claims description 7
- 239000000661 sodium alginate Substances 0.000 claims description 7
- 229940005550 sodium alginate Drugs 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000002904 solvent Substances 0.000 abstract description 8
- 238000005096 rolling process Methods 0.000 abstract description 6
- 239000012790 adhesive layer Substances 0.000 abstract description 3
- 238000004381 surface treatment Methods 0.000 abstract 2
- 230000000740 bleeding effect Effects 0.000 abstract 1
- 239000000701 coagulant Substances 0.000 abstract 1
- 238000007730 finishing process Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000007790 scraping Methods 0.000 abstract 1
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 5
- 238000007639 printing Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 229920003009 polyurethane dispersion Polymers 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 206010000269 abscess Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011527 polyurethane coating Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000003786 synthesis reaction 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
- D06N3/12—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
- D06N3/145—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 two or more layers of polyurethanes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C23/00—Making patterns or designs on fabrics
- D06C23/04—Making patterns or designs on fabrics by shrinking, embossing, moiréing, or crêping
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
- D06M11/11—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
- D06M11/155—Halides of elements of Groups 2 or 12 of the Periodic Table
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/188—Monocarboxylic acids; Anhydrides, halides or salts thereof
-
- 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
- D06N3/0056—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
- D06N3/0065—Organic pigments, e.g. dyes, brighteners
-
- 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
-
- 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)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
A method for producing an aqueous polyurethane synthetic leather is as below: impregnating a fabric by using a mixed liquid of calcium formate and calcium chloride, drying the rolling liquid to obtain a pretreated fabric; adding a foam coagulant, calcium formate and pigment in the aqueous polyurethane, mixing evenly to obtain an aqueous polyurethane slurry; scraping the slurry on the pretreated aqueous polyurethane fabric to obtain an aqueous polyurethane synthetic leather base; and subjecting the aqueous polyurethane synthetic leather base to aqueous surface treatment and vacuum line suction to obtain the aqueous polyurethane synthetic leather. The method employs a mixed liquid of calcium formate and calcium chloride for impregnating treatment on the fabric, so as to prevent excessive bleeding of the slurry in the adhesive layer into the fabric and influence on the handle feel of the synthetic leather; the aqueous surface treatment and vacuum line suction post-finishing process endow the aqueous polyurethane synthetic leather with good handle feel and mechanical properties. The present invention uses environmentally friendly materials and clean production process; and the obtained synthetic leather has content of any solvent less than 5ppm, and meets the requirements of ecological synthetic leather.
Description
Technical field
The present invention relates to technical field of synthetic leather, particularly a kind of manufacture method of waterborne polyurethane synthetic leather.
Background technology
Synthetic leather is simulation natural leather institutional framework and serviceability, and can be used as the composite of natural leather substitute.Usually to flood the nonwoven fabric of high molecular polymer for simulation lamina reticularis, with microvoid polyurethane layer simulation grain layer, the synthetic leather positive and negative obtained are all quite similar with leather, and have certain gas permeability, than ordinary people fabricate-leather closer to natural leather.Be widely used in and make footwear, boots, case and bag and ball etc.
At present, with regard to the development of synthetic leather technology, the major technology bottleneck problem of synthetic leather rapid industrial development is hindered to have two: one, the problem of environmental pollution that solvent-borne type production system produces, rough calculation, China conventional synthesis leather industry is every year to the demand of solvent type resin more than 200 ten thousand tons, this just means that the poisonous and harmful substances volatile emission of nearly 1,500,000 tons is every year in air, so huge discharge amount of exhaust gas, serious environment pollution and the healthy of site operation personnel is threatened in the fabrication process, particularly synthetic leather factory surrounding area is produced and have a strong impact on.Its two, owing to adopting solvent type production system, have the residual of solvent in synthetic leather goods, particularly the residual meeting of solvent dimethylformamide (DMF) exceeds standard, and is difficult to the requirement meeting ecological synthetic leather.
Summary of the invention
For overcoming the problems of the prior art, the object of the present invention is to provide a kind of manufacture method of waterborne polyurethane synthetic leather, the method adopts the raw material of environmental protection and clean production process, the waterborne polyurethane synthetic leather obtained has good mechanical property and hand-feel properties, and the content of any solvent is all less than 5ppm, meet the requirement of ecological synthetic leather.
For achieving the above object, the technical solution used in the present invention is:
A manufacture method for waterborne polyurethane synthetic leather, comprises the following steps:
(1) adopt the mixed liquor dipping base cloth of calcium formate and calcium chloride, mangle post-drying, obtains pretreated base cloth;
(2) with weight parts, in 100 parts of aqueous polyurethanes, add 7 ~ 10 parts of foaming flocculating agent, 5 ~ 10 parts of calcium carbonate and 1 ~ 2 part of pigment, mix, obtain aqueous polyurethane slurry;
(3) by aqueous polyurethane slurry blade coating on pretreated base cloth, then dry, obtain water-soluble polyurethane leather beth;
(4) by water-soluble polyurethane leather beth through aqueous surface process and vacuum pattern absorbing, obtain waterborne polyurethane synthetic leather.
In described step (1), pretreated base cloth obtains especially by following methods: with weight parts, the calcium chloride of the calcium formate of 1 ~ 2 part and 1 ~ 2 part is made into treatment fluid by the water-soluble solution of 80 ~ 100 parts, dipping tank is loaded after stirring, Ji Bu is by dipping tank impregnation process liquid, pass through roll again, pickup is 70% ~ 90% of base cloth weight, then dries under the condition of 100 DEG C ~ 120 DEG C, obtains pretreated base cloth.
In described step (2), aqueous polyurethane is the aqueous polyurethane of solid content 30 ~ 50%.
Foaming flocculating agent obtains by the following method in described step (2): with weight parts, by the ammonium carbonate of 2 ~ 5 parts, the ammonium nitrate water-soluble solution of 80 ~ 100 parts of 2 ~ 5 parts, obtains foaming flocculating agent.
Drying in described step (3) is carry out under the condition of 80 DEG C ~ 120 DEG C.
In described step (3), the blade coating amount of aqueous polyurethane slurry is 230 ~ 480g/m
2.
In described step (4), aqueous surface process is specific as follows: by uniform for aqueous surface-treating agent roller coat on water-soluble polyurethane leather beth surface, roller coat amount is 35 ~ 50g/m
2, then dry under the condition of 80 DEG C ~ 120 DEG C.
Described aqueous surface-treating agent obtains by the following method: with weight parts, aqueous polyurethane 30 ~ 50 parts, nano silicon 1 ~ 3 part, sodium alginate 1 ~ 3 part, 50 ~ 100 parts, water is mixed, obtains aqueous surface-treating agent.
By the preheating 1 ~ 2min under the condition of 150 DEG C ~ 180 DEG C of the water-soluble polyurethane leather beth after aqueous surface process before described vacuum pattern absorbing.
The present invention compares with current technology has following beneficial effect: first with calcium formate and calcium chloride mixed liquor impregnation process base cloth, effectively prevent aqueous polyurethane slurry to the infiltration of Ji Bunei; Then with ammonium carbonate and ammonium nitrate for foaming flocculating agent, generation gas can be decomposed when heating, and make aqueous polyurethane slurry enter acid state, aqueous polyurethane is solidified, in aqueous polyurethane coating, form abscess simultaneously, obtain water-soluble polyurethane leather beth; Finally adopt aqueous surface-treating agent to carry out post processing with the method for rubbing line to water-soluble polyurethane leather beth, obtain waterborne polyurethane synthetic leather.Owing to all adopting the raw material of environmental protection, can obtain environmentally friendly product, every chemical index of product can reach the standard of ecological synthetic leather; The whole production process of the present invention can not produce waste gas and waste water, is a kind of production process of clean environment firendly; The present invention adopts the method for the mixed liquor impregnation process base cloth of calcium formate and calcium chloride, the infiltration base cloth that the slurry of adhesive layer can be prevented too much and affect the feel of synthetic leather; The present invention for foaming flocculating agent, can obtain the water-soluble polyurethane leather beth of expansion type with ammonium carbonate and ammonium nitrate; Adopt the postfinishing process of aqueous surface process and vacuum pattern absorbing, the waterborne polyurethane synthetic leather obtained has good feel and mechanical property.The present invention all adopts the raw material of environmental protection and clean production process, and in the synthetic leather obtained, the content of any solvent is all less than 5ppm, meets the requirement of ecological synthetic leather.
Detailed description of the invention
Below by detailed description of the invention, the present invention is described in further detail, but the present invention has more than and is limited to these examples.
In the present invention, aqueous polyurethane is the aqueous polyurethane of high solids content, and the aqueous polyurethane of concrete solid content 30 ~ 50%, as the aqueous polyurethane dispersion of Wan Hua chemical groups Co., Ltd
but be not limited to this kind of aqueous polyurethane.
Embodiment 1
A manufacture method for waterborne polyurethane synthetic leather, comprises the following steps:
(1) with weight parts, the calcium chloride of the calcium formate of 1 part and 2 parts is made into treatment fluid by the water-soluble solution of 80 parts, dipping tank is loaded after stirring, Ji Bu is by dipping tank impregnation process liquid, pass through roll again, pickup is 90% of base cloth weight, then dries under the condition of 100 DEG C in an oven, obtains pretreated base cloth.
(2) with weight parts, by the ammonium carbonate of 5 parts, the ammonium nitrate water-soluble solution of 100 parts of 2.5 parts, the flocculating agent that foams is obtained.
With weight parts, in 100 parts of aqueous polyurethanes, add 8 parts of foaming flocculating agent, 9 parts of calcium carbonate and 1 part of pigment, mix, obtain aqueous polyurethane slurry; Wherein, aqueous polyurethane is the aqueous polyurethane dispersion of Wan Hua chemical groups Co., Ltd
(3) by aqueous polyurethane slurry blade coating on pretreated base cloth, the blade coating amount of aqueous polyurethane slurry is 230g/m
2, then dry under the condition of 90 DEG C in baking oven, obtain water-soluble polyurethane leather beth;
(4) adopt three printing machines, by uniform for aqueous surface-treating agent roller coat on water-soluble polyurethane leather beth surface, roller coat amount is 50g/m
2, then dry under the condition of 120 DEG C, then preheating 1min under the condition of 170 DEG C, then adopt vacuum tattoo machine vacuum pattern absorbing, rolling after cooling, obtain waterborne polyurethane synthetic leather.Wherein, aqueous surface-treating agent obtains by the following method: with weight parts, aqueous polyurethane 30 parts, nano silicon 1 part, sodium alginate 2 parts, 50 parts, water is mixed, obtains aqueous surface-treating agent.
Embodiment 2
A manufacture method for waterborne polyurethane synthetic leather, comprises the following steps:
(1) with weight parts, the calcium chloride of the calcium formate of 2 parts and 1 part is made into treatment fluid by the water-soluble solution of 90 parts, dipping tank is loaded after stirring, Ji Bu is by dipping tank impregnation process liquid, pass through roll again, pickup is 80% of base cloth weight, then dries under the condition of 120 DEG C in an oven, obtains pretreated base cloth.
(2) with weight parts, by the ammonium carbonate of 2 parts, the ammonium nitrate water-soluble solution of 85 parts of 3 parts, the flocculating agent that foams is obtained.
With weight parts, in 100 parts of aqueous polyurethanes, add 9 parts of foaming flocculating agent, 8 parts of calcium carbonate and 2 parts of pigment, mix, obtain aqueous polyurethane slurry; Wherein, aqueous polyurethane is the aqueous polyurethane dispersion of Wan Hua chemical groups Co., Ltd
(3) by aqueous polyurethane slurry blade coating on pretreated base cloth, the blade coating amount of aqueous polyurethane slurry is 300g/m
2, then dry under the condition of 110 DEG C in baking oven, obtain water-soluble polyurethane leather beth;
(4) adopt three printing machines, by uniform for aqueous surface-treating agent roller coat on water-soluble polyurethane leather beth surface, roller coat amount is 45g/m
2, then dry under the condition of 80 DEG C, then preheating 2min under the condition of 160 DEG C, then adopt vacuum tattoo machine vacuum pattern absorbing, rolling after cooling, obtain waterborne polyurethane synthetic leather.Wherein, aqueous surface-treating agent obtains by the following method: with weight parts, aqueous polyurethane 40 parts, nano silicon 2 parts, sodium alginate 1 part, 70 parts, water is mixed, obtains aqueous surface-treating agent.
Embodiment 3
A manufacture method for waterborne polyurethane synthetic leather, comprises the following steps:
(1) with weight parts, the calcium chloride of the calcium formate of 2 parts and 1.5 parts is made into treatment fluid by the water-soluble solution of 100 parts, dipping tank is loaded after stirring, Ji Bu is by dipping tank impregnation process liquid, pass through roll again, pickup is 70% of base cloth weight, then dries under the condition of 110 DEG C in an oven, obtains pretreated base cloth.
(2) with weight parts, by the ammonium carbonate of 3 parts, the ammonium nitrate water-soluble solution of 80 parts of 2 parts, the flocculating agent that foams is obtained.
With weight parts, be in the aqueous polyurethane of 30%, add 10 parts of foaming flocculating agent, 6 parts of calcium carbonate and 1.5 parts of pigment at 100 parts of solid contents, mix, obtain aqueous polyurethane slurry.
(3) by aqueous polyurethane slurry blade coating on pretreated base cloth, the blade coating amount of aqueous polyurethane slurry is 480g/m
2, then dry under the condition of 80 DEG C in baking oven, obtain water-soluble polyurethane leather beth;
(4) adopt three printing machines, by uniform for aqueous surface-treating agent roller coat on water-soluble polyurethane leather beth surface, roller coat amount is 50g/m
2, then dry under the condition of 110 DEG C, then preheating 1.5min under the condition of 150 DEG C, then adopt vacuum tattoo machine vacuum pattern absorbing, rolling after cooling, obtain waterborne polyurethane synthetic leather.Wherein, aqueous surface-treating agent obtains by the following method: with weight parts, aqueous polyurethane 45 parts, nano silicon 3 parts, sodium alginate 1.5 parts, 100 parts, water is mixed, obtains aqueous surface-treating agent.
Embodiment 4
A manufacture method for waterborne polyurethane synthetic leather, comprises the following steps:
(1) with weight parts, the calcium chloride of the calcium formate of 1.5 parts and 1 part is made into treatment fluid by the water-soluble solution of 85 parts, dipping tank is loaded after stirring, Ji Bu is by dipping tank impregnation process liquid, pass through roll again, pickup is 85% of base cloth weight, then dries under the condition of 115 DEG C in an oven, obtains pretreated base cloth.
(2) with weight parts, by the ammonium carbonate of 4 parts, the ammonium nitrate water-soluble solution of 90 parts of 5 parts, the flocculating agent that foams is obtained.
With weight parts, be in the aqueous polyurethane of 40%, add 7 parts of foaming flocculating agent, 10 parts of calcium carbonate and 2 parts of pigment at 100 parts of solid contents, mix, obtain aqueous polyurethane slurry.
(3) by aqueous polyurethane slurry blade coating on pretreated base cloth, the blade coating amount of aqueous polyurethane slurry is 400g/m
2, then dry under the condition of 120 DEG C in baking oven, obtain water-soluble polyurethane leather beth;
(4) adopt three printing machines, by uniform for aqueous surface-treating agent roller coat on water-soluble polyurethane leather beth surface, roller coat amount is 35g/m
2, then dry under the condition of 90 DEG C, then preheating 1min under the condition of 180 DEG C, then adopt vacuum tattoo machine vacuum pattern absorbing, rolling after cooling, obtain waterborne polyurethane synthetic leather.Wherein, aqueous surface-treating agent obtains by the following method: with weight parts, aqueous polyurethane 35 parts, nano silicon 2.5 parts, sodium alginate 3 parts, 80 parts, water is mixed, obtains aqueous surface-treating agent.
Embodiment 5
A manufacture method for waterborne polyurethane synthetic leather, comprises the following steps:
(1) with weight parts, the calcium chloride of the calcium formate of 1 part and 2 parts is made into treatment fluid by the water-soluble solution of 95 parts, dipping tank is loaded after stirring, Ji Bu is by dipping tank impregnation process liquid, pass through roll again, pickup is 75% of base cloth weight, then dries under the condition of 105 DEG C in an oven, obtains pretreated base cloth.
(2) with weight parts, by the ammonium carbonate of 3.5 parts, the ammonium nitrate water-soluble solution of 95 parts of 4 parts, the flocculating agent that foams is obtained.
With weight parts, be in the aqueous polyurethane of 50%, add 8.5 parts of foaming flocculating agent, 5 parts of calcium carbonate and 1 part of pigment at 100 parts of solid contents, mix, obtain aqueous polyurethane slurry.
(3) by aqueous polyurethane slurry blade coating on pretreated base cloth, the blade coating amount of aqueous polyurethane slurry is 350g/m
2, then dry under the condition of 115 DEG C in baking oven, obtain water-soluble polyurethane leather beth;
(4) adopt three printing machines, by uniform for aqueous surface-treating agent roller coat on water-soluble polyurethane leather beth surface, roller coat amount is 40g/m
2, then dry under the condition of 100 DEG C, then preheating 2min under the condition of 165 DEG C, then adopt vacuum tattoo machine vacuum pattern absorbing, rolling after cooling, obtain waterborne polyurethane synthetic leather.Wherein, aqueous surface-treating agent obtains by the following method: with weight parts, aqueous polyurethane 50 parts, nano silicon 1.5 parts, sodium alginate 2.5 parts, 90 parts, water is mixed, obtains aqueous surface-treating agent.
The present invention has the following advantages: one, and all adopt the raw material of environmental protection, can obtain environmentally friendly product, every chemical index of product can reach the standard of ecological synthetic leather; Its two, whole production process can not produce waste gas and waste water, is a kind of production process of clean environment firendly; Its three, adopt the method for the mixed liquor impregnation process base cloth of calcium formate and calcium chloride, the infiltration base cloth that the slurry of adhesive layer can be prevented too much and affect the feel of synthetic leather; Its four, with ammonium carbonate and ammonium nitrate for foaming flocculating agent, the water-soluble polyurethane leather beth of expansion type can be obtained; Its five, adopt the postfinishing process of aqueous surface process and vacuum pattern absorbing, the waterborne polyurethane synthetic leather obtained has good feel and mechanical property.
The present invention all adopts the raw material of environmental protection and clean production process, and in the synthetic leather obtained, the content of any solvent is all less than 5ppm, meets the requirement of ecological synthetic leather.
Claims (9)
1. a manufacture method for waterborne polyurethane synthetic leather, is characterized in that, comprises the following steps:
(1) adopt the mixed liquor dipping base cloth of calcium formate and calcium chloride, mangle post-drying, obtains pretreated base cloth;
(2) with weight parts, in 100 parts of aqueous polyurethanes, add 7 ~ 10 parts of foaming flocculating agent, 5 ~ 10 parts of calcium carbonate and 1 ~ 2 part of pigment, mix, obtain aqueous polyurethane slurry;
(3) by aqueous polyurethane slurry blade coating on pretreated base cloth, then dry, obtain water-soluble polyurethane leather beth;
(4) by water-soluble polyurethane leather beth through aqueous surface process and vacuum pattern absorbing, obtain waterborne polyurethane synthetic leather.
2. the manufacture method of a kind of waterborne polyurethane synthetic leather according to claim 1, it is characterized in that: in described step (1), pretreated base cloth obtains especially by following methods: with weight parts, the calcium chloride of the calcium formate of 1 ~ 2 part and 1 ~ 2 part is made into treatment fluid by the water-soluble solution of 80 ~ 100 parts, dipping tank is loaded after stirring, Ji Bu is by dipping tank impregnation process liquid, pass through roll again, pickup is 70% ~ 90% of base cloth weight, then dry under the condition of 100 DEG C ~ 120 DEG C, obtain pretreated base cloth.
3. the manufacture method of a kind of waterborne polyurethane synthetic leather according to claim 1, is characterized in that: in described step (2), aqueous polyurethane is the aqueous polyurethane of solid content 30 ~ 50%.
4. the manufacture method of a kind of waterborne polyurethane synthetic leather according to claim 1, it is characterized in that: in described step (2), foaming flocculating agent obtains by the following method: with weight parts, by the ammonium carbonate of 2 ~ 5 parts, the ammonium nitrate water-soluble solution of 80 ~ 100 parts of 2 ~ 5 parts, obtain the flocculating agent that foams.
5. the manufacture method of a kind of waterborne polyurethane synthetic leather according to claim 1, is characterized in that: drying in described step (3) is carry out under the condition of 80 DEG C ~ 120 DEG C.
6. the manufacture method of a kind of waterborne polyurethane synthetic leather according to claim 1, is characterized in that: in described step (3), the blade coating amount of aqueous polyurethane slurry is 230 ~ 480g/m
2.
7. the manufacture method of a kind of waterborne polyurethane synthetic leather according to claim 1, it is characterized in that: in described step (4), aqueous surface process is specific as follows: by uniform for aqueous surface-treating agent roller coat on water-soluble polyurethane leather beth surface, roller coat amount is 35 ~ 50g/m
2, then dry under the condition of 80 DEG C ~ 120 DEG C.
8. the manufacture method of a kind of waterborne polyurethane synthetic leather according to claim 7, it is characterized in that: described aqueous surface-treating agent obtains by the following method: with weight parts, aqueous polyurethane 30 ~ 50 parts, nano silicon 1 ~ 3 part, sodium alginate 1 ~ 3 part, 50 ~ 100 parts, water are mixed, obtains aqueous surface-treating agent.
9. the manufacture method of a kind of waterborne polyurethane synthetic leather according to claim 1, is characterized in that: by the preheating 1 ~ 2min under the condition of 150 DEG C ~ 180 DEG C of the water-soluble polyurethane leather beth after aqueous surface process before described vacuum pattern absorbing.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106498761A (en) * | 2016-12-14 | 2017-03-15 | 兰州科天新材料股份有限公司 | The production method of aqueouss vacuum pattern absorbing leather |
| CN106544876A (en) * | 2016-12-06 | 2017-03-29 | 广东天安新材料股份有限公司 | The manufacture method of leather and the leather formed using the manufacture method |
| CN106811981A (en) * | 2016-12-06 | 2017-06-09 | 广东天安新材料股份有限公司 | Leather and its preparation method |
| CN108505350A (en) * | 2018-06-01 | 2018-09-07 | 广州可那派英皮具有限公司 | A kind of composite leather and its manufacturing method |
| CN110777544A (en) * | 2019-11-01 | 2020-02-11 | 清远市齐力合成革有限公司 | Waterborne polyurethane synthetic leather fabric and preparation method thereof |
| CN110820348A (en) * | 2019-11-22 | 2020-02-21 | 温州东泰树脂有限责任公司 | Surface treating agent for synthetic leather and preparation method thereof |
| CN111749026A (en) * | 2020-07-08 | 2020-10-09 | 清远市齐力合成革有限公司 | Preparation method of water-based ecological leather |
| CN113152110A (en) * | 2021-05-18 | 2021-07-23 | 广东欧美斯家具有限公司 | Environment-friendly polyurethane synthetic leather for sofa furniture and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3989727B2 (en) * | 2001-12-28 | 2007-10-10 | 日華化学株式会社 | Manufacturing method of flooring material for artificial leather with silver and artificial leather with silver |
| CN102080332A (en) * | 2010-12-27 | 2011-06-01 | 陕西科技大学 | Preparation method of waterborne polyurethane synthetic leather base |
| CN102418284A (en) * | 2011-09-02 | 2012-04-18 | 福建宝利特集团有限公司 | Preparation method of water-soluble polyurethane leather beth |
| CN102433765A (en) * | 2011-11-09 | 2012-05-02 | 四川大学 | Method for manufacturing environment-friendly semi-polyurethane leather |
| CN104928944A (en) * | 2015-06-30 | 2015-09-23 | 陕西科技大学 | Waterproof exsiccative breathable synthetic leather and cleaner production method thereof |
-
2015
- 2015-11-10 CN CN201510761921.4A patent/CN105463867B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3989727B2 (en) * | 2001-12-28 | 2007-10-10 | 日華化学株式会社 | Manufacturing method of flooring material for artificial leather with silver and artificial leather with silver |
| CN102080332A (en) * | 2010-12-27 | 2011-06-01 | 陕西科技大学 | Preparation method of waterborne polyurethane synthetic leather base |
| CN102418284A (en) * | 2011-09-02 | 2012-04-18 | 福建宝利特集团有限公司 | Preparation method of water-soluble polyurethane leather beth |
| CN102433765A (en) * | 2011-11-09 | 2012-05-02 | 四川大学 | Method for manufacturing environment-friendly semi-polyurethane leather |
| CN104928944A (en) * | 2015-06-30 | 2015-09-23 | 陕西科技大学 | Waterproof exsiccative breathable synthetic leather and cleaner production method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 田俊莹等: "《纺织品功能整理》", 31 October 2015, 中国纺织出版社 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106544876A (en) * | 2016-12-06 | 2017-03-29 | 广东天安新材料股份有限公司 | The manufacture method of leather and the leather formed using the manufacture method |
| CN106811981A (en) * | 2016-12-06 | 2017-06-09 | 广东天安新材料股份有限公司 | Leather and its preparation method |
| CN106498761A (en) * | 2016-12-14 | 2017-03-15 | 兰州科天新材料股份有限公司 | The production method of aqueouss vacuum pattern absorbing leather |
| CN106498761B (en) * | 2016-12-14 | 2018-10-02 | 兰州科天新材料股份有限公司 | The production method of aqueous vacuum pattern absorbing leather |
| CN108505350A (en) * | 2018-06-01 | 2018-09-07 | 广州可那派英皮具有限公司 | A kind of composite leather and its manufacturing method |
| CN108505350B (en) * | 2018-06-01 | 2020-10-30 | 广州可那派英皮具有限公司 | Composite leather and manufacturing method thereof |
| CN110777544A (en) * | 2019-11-01 | 2020-02-11 | 清远市齐力合成革有限公司 | Waterborne polyurethane synthetic leather fabric and preparation method thereof |
| CN110820348A (en) * | 2019-11-22 | 2020-02-21 | 温州东泰树脂有限责任公司 | Surface treating agent for synthetic leather and preparation method thereof |
| CN111749026A (en) * | 2020-07-08 | 2020-10-09 | 清远市齐力合成革有限公司 | Preparation method of water-based ecological leather |
| CN113152110A (en) * | 2021-05-18 | 2021-07-23 | 广东欧美斯家具有限公司 | Environment-friendly polyurethane synthetic leather for sofa furniture and preparation method thereof |
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