CN105463867B - A kind of manufacture method of waterborne polyurethane synthetic leather - Google Patents
A kind of manufacture method of waterborne polyurethane synthetic leather Download PDFInfo
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- CN105463867B CN105463867B CN201510761921.4A CN201510761921A CN105463867B CN 105463867 B CN105463867 B CN 105463867B CN 201510761921 A CN201510761921 A CN 201510761921A CN 105463867 B CN105463867 B CN 105463867B
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- synthetic leather
- aqueous
- base fabric
- polyurethane
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- 239000004814 polyurethane Substances 0.000 title claims abstract description 106
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 105
- 239000002649 leather substitute Substances 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 239000004744 fabric Substances 0.000 claims abstract description 44
- 239000010985 leather Substances 0.000 claims abstract description 29
- 239000002002 slurry Substances 0.000 claims abstract description 28
- 238000005187 foaming Methods 0.000 claims abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 15
- 238000000576 coating method Methods 0.000 claims abstract description 15
- 239000008394 flocculating agent Substances 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
- CBOCVOKPQGJKKJ-UHFFFAOYSA-L Calcium formate Chemical compound [Ca+2].[O-]C=O.[O-]C=O CBOCVOKPQGJKKJ-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
- 239000004281 calcium formate Substances 0.000 claims abstract description 14
- 229940044172 calcium formate Drugs 0.000 claims abstract description 14
- 235000019255 calcium formate Nutrition 0.000 claims abstract description 14
- 238000005470 impregnation Methods 0.000 claims abstract description 10
- 239000000049 pigment Substances 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 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 12
- 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 9
- 235000012501 ammonium carbonate Nutrition 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 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
- 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
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 2
- 239000006260 foam Substances 0.000 claims description 2
- 238000004381 surface treatment Methods 0.000 claims description 2
- 235000015170 shellfish Nutrition 0.000 claims 1
- 239000002904 solvent Substances 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 6
- 238000004140 cleaning Methods 0.000 abstract description 4
- 230000008595 infiltration Effects 0.000 abstract description 4
- 238000001764 infiltration Methods 0.000 abstract description 4
- 239000012790 adhesive layer Substances 0.000 abstract description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract description 2
- 239000011575 calcium Substances 0.000 abstract description 2
- 229910052791 calcium Inorganic materials 0.000 abstract description 2
- 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
- 239000012530 fluid Substances 0.000 description 5
- 238000007639 printing Methods 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- 241000321398 Dermatolepis dermatolepis Species 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000011068 loading method Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 206010000269 abscess Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing 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
- -1 poly- ammonia Ester Chemical class 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011527 polyurethane coating Substances 0.000 description 1
- 229920003009 polyurethane dispersion Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—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 kind of manufacture method of waterborne polyurethane synthetic leather, is impregnated using the mixed liquor of calcium formate and calcium chloride and is dried after base fabric, mangle, the base fabric pre-processed；Foaming flocculating agent, sour calcium and pigment are added in aqueous polyurethane, is well mixed, obtains aqueous polyurethane slurry；By aqueous polyurethane slurry blade coating in the base fabric of pretreatment, water-soluble polyurethane leather beth is obtained；Water-soluble polyurethane leather beth is handled and vacuum pattern absorbing by aqueous surface, waterborne polyurethane synthetic leather is obtained.Using the mixed liquor impregnation process base fabric of calcium formate and calcium chloride, the excessive infiltration base fabric of the slurry of adhesive layer can be prevented and the feel of synthetic leather is influenceed；Postfinishing process with vacuum pattern absorbing is handled using aqueous surface, makes waterborne polyurethane synthetic leather that there is good feel and mechanical property.The present invention is all using the raw material and the production process of cleaning of environmental protection, and the content respectively less than 5ppm of any solvent, meets ecological synthetic leather requirement in obtained synthetic leather.
Description
Technical field
The present invention relates to technical field of synthetic leather, more particularly to a kind of manufacture method of waterborne polyurethane synthetic leather.
Background technology
Synthetic leather is simulation natural leather institutional framework and performance, and can as natural leather substitute composite wood
Material.It is resulting with microvoid polyurethane layer simulation grain layer generally to impregnate the non-woven fabrics of high molecular polymer as simulation lamina reticularis
Synthetic leather positive and negative it is all quite similar with leather, and with certain gas permeability, than common artificial leather closer to natural skin
Leather.It is widely used in making footwear, boots, case and bag and ball etc..
At present, from the point of view of with regard to the development of synthetic leather technology, the major technology bottleneck of synthetic leather rapid industrial development is hindered
Problem has two：First, the problem of environmental pollution that solvent-borne type production system is produced, rough calculation, China's conventional synthesis leather industry
The annual demand to solvent type resin is more than 200 ten thousand tons, and this means that annual about 1,500,000 tons poisonous and harmful substances are waved
Send a manuscript to the compositor and be put into air, so huge discharge amount of exhaust gas, in the fabrication process severe contamination environment and to execute-in-place people
The healthy of member is threatened, and particularly synthetic leather factory surrounding area is produced and had a strong impact on.Second, due to using solvent-borne type
Production system, have the residual of solvent in synthesis leather goods, the residual of particularly solvent dimethylformamide (DMF) can surpass
Mark, it is difficult to meet the requirement of ecological synthetic leather.
The content of the invention
To overcome the problems of the prior art, it is an object of the invention to provide a kind of manufacture of waterborne polyurethane synthetic leather
Method, this method is using the raw material of environmental protection and the production process of cleaning, and obtained waterborne polyurethane synthetic leather has good power
Performance and hand-feel properties are learned, and the content of any solvent is respectively less than 5ppm, meets the requirement of ecological synthetic leather.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：
A kind of manufacture method of waterborne polyurethane synthetic leather, comprises the following steps：
(1) using the mixed liquor dipping base fabric of calcium formate and calcium chloride, dried after mangle, the base fabric pre-processed；
(2) in terms of parts by weight, 7~10 parts of foaming flocculating agents, 5~10 parts of carbonic acid are added in 100 parts of aqueous polyurethanes
Calcium and 1~2 part of pigment, are well mixed, obtain aqueous polyurethane slurry；
(3) then aqueous polyurethane slurry blade coating is dried in the base fabric of pretreatment, obtains waterborne polyurethane synthetic leather
Bass；
(4) water-soluble polyurethane leather beth is handled and vacuum pattern absorbing by aqueous surface, obtains aqueous polyurethane conjunction
Finished leather.
The base fabric of pretreatment is made especially by following methods in the step (1)：In terms of parts by weight, by 1~2 part
Calcium formate and 1~2 part of calcium chloride are made into treatment fluid with 80~100 parts of water dissolving, and dipping tank, base fabric are loaded after stirring
By dipping tank impregnation process liquid, then by roll, pickup is the 70%~90% of base fabric weight, then 100 DEG C~120
Dried under conditions of DEG C, the base fabric pre-processed.
Aqueous polyurethane is the aqueous polyurethane of solid content 30~50% in the step (2).
Foaming flocculating agent is made by the following method in the step (2)：In terms of parts by weight, by 2~5 parts of carbonic acid
Ammonium, 2~5 parts of ammonium nitrate are dissolved with 80~100 parts of water, obtain the flocculating agent that foams.
Drying is carried out under conditions of 80 DEG C~120 DEG C in the step (3).
The blade coating amount of aqueous polyurethane slurry is 230~480g/m in the step (3)2。
Aqueous surface treatment is specific as follows in the step (4)：By the uniform roller coat of aqueous surface-treating agent aqueous poly-
Urethane synthetic leather bass surface, roller coat amount is 35~50g/m2, then dried under conditions of 80 DEG C~120 DEG C.
The aqueous surface-treating agent is made by the following method：In terms of parts by weight, by 30~50 parts of aqueous polyurethane,
1~3 part of nano silicon, 1~3 part of sodium alginate, 50~100 parts of water are well mixed, and obtain aqueous surface-treating agent.
Water-soluble polyurethane leather beth after aqueous surface is handled before the vacuum pattern absorbing is at 150 DEG C~180 DEG C
Under the conditions of preheat 1~2min.
The present invention is compared with current technology to be had the advantages that：Impregnated first with calcium formate and calcium chloride mixed liquor
Base fabric is handled, infiltration of the aqueous polyurethane slurry into base fabric is effectively prevented；Then using ammonium carbonate and ammonium nitrate as foaming
Flocculating agent, generation gas can be decomposed in heating, and aqueous polyurethane slurry is entered acid state, coagulate aqueous polyurethane
Gu, while forming abscess in aqueous polyurethane coating, obtain water-soluble polyurethane leather beth；Finally using at aqueous surface
Reason agent and rub the method for line water-soluble polyurethane leather beth is post-processed, obtain waterborne polyurethane synthetic leather.Due to complete
Portion can obtain environmentally friendly product, every chemical index of product can reach ecological synthesis using the raw material of environmental protection
The standard of leather；Whole production process of the invention will not produce waste gas and waste water, be a kind of production process of clean environment firendly；The present invention
Using calcium formate and the method for the mixed liquor impregnation process base fabric of calcium chloride, the infiltration base of the slurry of adhesive layer excessively can be prevented
Cloth and the feel for influenceing synthetic leather；The present invention can obtain the aqueous of expansion type using ammonium carbonate and ammonium nitrate as foaming flocculating agent
Synthetic Leather bass；Postfinishing process with vacuum pattern absorbing is handled using aqueous surface, obtained aqueous polyurethane synthesis
Leather has good feel and mechanical property.The present invention is all using the raw material and the production process of cleaning of environmental protection, obtained conjunction
The content of any solvent is respectively less than 5ppm in finished leather, meets the requirement of ecological synthetic leather.
Embodiment
Below by embodiment, the present invention is described in further detail, but the present invention is not only limited in these
Example.
Aqueous polyurethane is the aqueous polyurethane of high solids content, the aqueous poly- ammonia of specific solid content 30~50% in the present invention
The aqueous polyurethane dispersion of ester, such as Wan Hua chemical groups Co., LtdBut it is not limited to this kind of aqueous poly- ammonia
Ester.
Embodiment 1
A kind of manufacture method of waterborne polyurethane synthetic leather, comprises the following steps：
(1) in terms of parts by weight, 1 part of calcium formate and 2 parts of calcium chloride is made into treatment fluid with 80 parts of water dissolving, stirred
Uniform rear loading dipping tank is mixed, base fabric is by dipping tank impregnation process liquid, then by roll, and pickup is base fabric weight
90%, then dry in an oven under conditions of 100 DEG C, the base fabric pre-processed.
(2) in terms of parts by weight, 5 parts of ammonium carbonate, 2.5 parts of ammonium nitrate is dissolved with 100 parts of water, foaming is obtained solidifying
Poly- agent.
In terms of parts by weight, 8 parts of foaming flocculating agents, 9 parts of calcium carbonate and 1 part of pigment are added in 100 parts of aqueous polyurethanes,
It is well mixed, obtain aqueous polyurethane slurry；Wherein, aqueous polyurethane is the aqueous polyurethane of Wan Hua chemical groups Co., Ltd
Dispersion
(3) by aqueous polyurethane slurry blade coating in the base fabric of pretreatment, the blade coating amount of aqueous polyurethane slurry is 230g/
m2, then dried in baking oven under conditions of 90 DEG C, obtain water-soluble polyurethane leather beth；
(4) three printing machines are used, by the uniform roller coat of aqueous surface-treating agent in water-soluble polyurethane leather beth table
Face, roller coat amount is 50g/m2, then dried under conditions of 120 DEG C, 1min then preheated under conditions of 170 DEG C, then use
Vacuum tattoo machine vacuum pattern absorbing, rolling after cooling obtains waterborne polyurethane synthetic leather.Wherein, aqueous surface-treating agent by with
Lower section method is made：In terms of parts by weight, 30 parts of aqueous polyurethane, 1 part of nano silicon, 2 parts of sodium alginate, 50 parts of water are mixed
Close uniform, obtain aqueous surface-treating agent.
Embodiment 2
A kind of manufacture method of waterborne polyurethane synthetic leather, comprises the following steps：
(1) in terms of parts by weight, 2 parts of calcium formate and 1 part of calcium chloride is made into treatment fluid with 90 parts of water dissolving, stirred
Uniform rear loading dipping tank is mixed, base fabric is by dipping tank impregnation process liquid, then by roll, and pickup is base fabric weight
80%, then dry in an oven under conditions of 120 DEG C, the base fabric pre-processed.
(2) in terms of parts by weight, 2 parts of ammonium carbonate, 3 parts of ammonium nitrate is dissolved with 85 parts of water, foaming cohesion is obtained
Agent.
In terms of parts by weight, 9 parts of foaming flocculating agents, 8 parts of calcium carbonate and 2 parts of pigment are added in 100 parts of aqueous polyurethanes,
It is well mixed, obtain aqueous polyurethane slurry；Wherein, aqueous polyurethane is the aqueous polyurethane of Wan Hua chemical groups Co., Ltd
Dispersion
(3) by aqueous polyurethane slurry blade coating in the base fabric of pretreatment, the blade coating amount of aqueous polyurethane slurry is 300g/
m2, then dried in baking oven under conditions of 110 DEG C, obtain water-soluble polyurethane leather beth；
(4) three printing machines are used, by the uniform roller coat of aqueous surface-treating agent in water-soluble polyurethane leather beth table
Face, roller coat amount is 45g/m2, then dried under conditions of 80 DEG C, 2min is then preheated under conditions of 160 DEG C, then using true
Suction line machine vacuum pattern absorbing, rolling after cooling obtains waterborne polyurethane synthetic leather.Wherein, aqueous surface-treating agent passes through following
Method is made：In terms of parts by weight, by 40 parts of aqueous polyurethane, 2 parts of nano silicon, 1 part of sodium alginate, 70 parts of mixing of water
Uniformly, aqueous surface-treating agent is obtained.
Embodiment 3
A kind of manufacture method of waterborne polyurethane synthetic leather, comprises the following steps：
(1) in terms of parts by weight, 2 parts of calcium formate and 1.5 parts of calcium chloride are made into processing with 100 parts of water dissolving
Liquid, loads dipping tank after stirring, base fabric is by dipping tank impregnation process liquid, then by roll, and pickup is base fabric weight
70%, then dry in an oven under conditions of 110 DEG C, the base fabric pre-processed.
(2) in terms of parts by weight, 3 parts of ammonium carbonate, 2 parts of ammonium nitrate is dissolved with 80 parts of water, foaming cohesion is obtained
Agent.
In terms of parts by weight, 100 parts of solid contents for 30% aqueous polyurethane in add 10 parts foaming flocculating agents, 6 parts
Calcium carbonate and 1.5 parts of pigment, are well mixed, obtain aqueous polyurethane slurry.
(3) by aqueous polyurethane slurry blade coating in the base fabric of pretreatment, the blade coating amount of aqueous polyurethane slurry is 480g/
m2, then dried in baking oven under conditions of 80 DEG C, obtain water-soluble polyurethane leather beth；
(4) three printing machines are used, by the uniform roller coat of aqueous surface-treating agent in water-soluble polyurethane leather beth table
Face, roller coat amount is 50g/m2, then dried under conditions of 110 DEG C, 1.5min then preheated under conditions of 150 DEG C, then adopt
Vacuum tattoo machine vacuum pattern absorbing is used, rolling after cooling obtains waterborne polyurethane synthetic leather.Wherein, aqueous surface-treating agent passes through
Following methods are made：In terms of parts by weight, by 45 parts of aqueous polyurethane, 3 parts of nano silicon, 1.5 parts of sodium alginate, water
100 parts are well mixed, and obtain aqueous surface-treating agent.
Embodiment 4
A kind of manufacture method of waterborne polyurethane synthetic leather, comprises the following steps：
(1) in terms of parts by weight, 1.5 parts of calcium formate and 1 part of calcium chloride are made into treatment fluid with 85 parts of water dissolving,
Load dipping tank after stirring, base fabric is by dipping tank impregnation process liquid, then by roll, and pickup is base fabric weight
85%, then dry in an oven under conditions of 115 DEG C, the base fabric pre-processed.
(2) in terms of parts by weight, 4 parts of ammonium carbonate, 5 parts of ammonium nitrate is dissolved with 90 parts of water, foaming cohesion is obtained
Agent.
In terms of parts by weight, 100 parts of solid contents for 40% aqueous polyurethane in add 7 parts foaming flocculating agents, 10 parts
Calcium carbonate and 2 parts of pigment, are well mixed, obtain aqueous polyurethane slurry.
(3) by aqueous polyurethane slurry blade coating in the base fabric of pretreatment, the blade coating amount of aqueous polyurethane slurry is 400g/
m2, then dried in baking oven under conditions of 120 DEG C, obtain water-soluble polyurethane leather beth；
(4) three printing machines are used, by the uniform roller coat of aqueous surface-treating agent in water-soluble polyurethane leather beth table
Face, roller coat amount is 35g/m2, then dried under conditions of 90 DEG C, 1min is then preheated under conditions of 180 DEG C, then using true
Suction line machine vacuum pattern absorbing, rolling after cooling obtains waterborne polyurethane synthetic leather.Wherein, aqueous surface-treating agent passes through following
Method is made：In terms of parts by weight, 35 parts of aqueous polyurethane, 2.5 parts of nano silicon, 3 parts of sodium alginate, 80 parts of water are mixed
Close uniform, obtain aqueous surface-treating agent.
Embodiment 5
A kind of manufacture method of waterborne polyurethane synthetic leather, comprises the following steps：
(1) in terms of parts by weight, 1 part of calcium formate and 2 parts of calcium chloride is made into treatment fluid with 95 parts of water dissolving, stirred
Uniform rear loading dipping tank is mixed, base fabric is by dipping tank impregnation process liquid, then by roll, and pickup is base fabric weight
75%, then dry in an oven under conditions of 105 DEG C, the base fabric pre-processed.
(2) in terms of parts by weight, 3.5 parts of ammonium carbonate, 4 parts of ammonium nitrate is dissolved with 95 parts of water, foaming is obtained solidifying
Poly- agent.
In terms of parts by weight, 100 parts of solid contents for 50% aqueous polyurethane in add 8.5 parts foaming flocculating agents, 5 parts
Calcium carbonate and 1 part of pigment, are well mixed, obtain aqueous polyurethane slurry.
(3) by aqueous polyurethane slurry blade coating in the base fabric of pretreatment, the blade coating amount of aqueous polyurethane slurry is 350g/
m2, then dried in baking oven under conditions of 115 DEG C, obtain water-soluble polyurethane leather beth；
(4) three printing machines are used, by the uniform roller coat of aqueous surface-treating agent in water-soluble polyurethane leather beth table
Face, roller coat amount is 40g/m2, then dried under conditions of 100 DEG C, 2min then preheated under conditions of 165 DEG C, then use
Vacuum tattoo machine vacuum pattern absorbing, rolling after cooling obtains waterborne polyurethane synthetic leather.Wherein, aqueous surface-treating agent by with
Lower section method is made：In terms of parts by weight, by 50 parts of aqueous polyurethane, 1.5 parts of nano silicon, 2.5 parts of sodium alginate, water 90
Part is well mixed, obtains aqueous surface-treating agent.
The present invention has advantages below：First, environmentally friendly product all can be obtained using the raw material of environmental protection,
Every chemical index of product can reach the standard of ecological synthetic leather；Second, whole production process will not produce waste gas and useless
Water, is a kind of production process of clean environment firendly；Third, using calcium formate and the side of the mixed liquor impregnation process base fabric of calcium chloride
Method, can prevent the excessive infiltration base fabric of the slurry of adhesive layer and influence the feel of synthetic leather；Fourth, with ammonium carbonate and ammonium nitrate
For foaming flocculating agent, the water-soluble polyurethane leather beth of expansion type can be obtained；Fifth, being handled using aqueous surface and vacuum
The postfinishing process of line is inhaled, obtained waterborne polyurethane synthetic leather has good feel and mechanical property.
The present invention is all using the raw material and the production process of cleaning of environmental protection, the content of any solvent in obtained synthetic leather
Respectively less than 5ppm, meets the requirement of ecological synthetic leather.
Claims (7)
1. a kind of manufacture method of waterborne polyurethane synthetic leather, it is characterised in that comprise the following steps：
(1) using the mixed liquor dipping base fabric of calcium formate and calcium chloride, dried after mangle, the base fabric pre-processed；
(2) in terms of parts by weight, 7~10 parts of foaming flocculating agents, 5~10 parts of calcium carbonate and 1 are added in 100 parts of aqueous polyurethanes
~2 parts of pigment, are well mixed, obtain aqueous polyurethane slurry；
(3) then aqueous polyurethane slurry blade coating is dried in the base fabric of pretreatment, obtains waterborne polyurethane synthetic leather shellfish
This；
(4) water-soluble polyurethane leather beth is handled and vacuum pattern absorbing by aqueous surface, obtains waterborne polyurethane synthetic leather；
In terms of parts by weight, 1~2 part of calcium formate and 1~2 part of calcium chloride are made into processing with 80~100 parts of water dissolving
Liquid, loads dipping tank after stirring, base fabric is by dipping tank impregnation process liquid, then by roll, and pickup is base fabric weight
70%~90%, then under conditions of 100 DEG C~120 DEG C dry, the base fabric pre-processed；
Foaming flocculating agent is made by the following method in the step (2)：In terms of parts by weight, by 2~5 parts of ammonium carbonate, 2~
5 parts of ammonium nitrate is dissolved with 80~100 parts of water, obtains the flocculating agent that foams.
2. a kind of manufacture method of waterborne polyurethane synthetic leather according to claim 1, it is characterised in that：The step
(2) aqueous polyurethane is the aqueous polyurethane of solid content 30~50% in.
3. a kind of manufacture method of waterborne polyurethane synthetic leather according to claim 1, it is characterised in that：The step
(3) drying is carried out under conditions of 80 DEG C~120 DEG C in.
4. a kind of manufacture method of waterborne polyurethane synthetic leather according to claim 1, it is characterised in that：The step
(3) blade coating amount of aqueous polyurethane slurry is 230~480g/m in2。
5. a kind of manufacture method of waterborne polyurethane synthetic leather according to claim 1, it is characterised in that：The step
(4) aqueous surface treatment is specific as follows in：By the uniform roller coat of aqueous surface-treating agent in water-soluble polyurethane leather beth table
Face, roller coat amount is 35~50g/m2, then dried under conditions of 80 DEG C~120 DEG C.
6. a kind of manufacture method of waterborne polyurethane synthetic leather according to claim 5, it is characterised in that：The aqueous table
Face inorganic agent is made by the following method：In terms of parts by weight, by 30~50 parts of aqueous polyurethane, nano silicon 1~3
Part, 1~3 part of sodium alginate, 50~100 parts of water are well mixed, and obtain aqueous surface-treating agent.
7. a kind of manufacture method of waterborne polyurethane synthetic leather according to claim 1, it is characterised in that：The vacuum is inhaled
Water-soluble polyurethane leather beth after aqueous surface is handled before line preheats 1~2min under conditions of 150 DEG C~180 DEG C.
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| 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 |
| 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 |
| 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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| 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 |
| CN102080332B (en) * | 2010-12-27 | 2012-05-09 | 陕西科技大学 | Preparation method of waterborne polyurethane synthetic leather base |
| CN102418284B (en) * | 2011-09-02 | 2013-09-11 | 福建宝利特集团有限公司 | Preparation method of water-soluble polyurethane leather beth |
| CN102433765B (en) * | 2011-11-09 | 2013-07-03 | 四川大学 | Method for manufacturing environment-friendly semi-polyurethane leather |
| CN104928944B (en) * | 2015-06-30 | 2016-10-19 | 陕西科技大学 | A kind of waterproof dehumidifying vapor-permeable type synthetic leather and clean preparation method thereof |
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