CN102080332B - A kind of manufacture method of waterborne polyurethane synthetic leather bass - Google Patents
A kind of manufacture method of waterborne polyurethane synthetic leather bass Download PDFInfo
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- CN102080332B CN102080332B CN2010106072077A CN201010607207A CN102080332B CN 102080332 B CN102080332 B CN 102080332B CN 2010106072077 A CN2010106072077 A CN 2010106072077A CN 201010607207 A CN201010607207 A CN 201010607207A CN 102080332 B CN102080332 B CN 102080332B
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- 239000004814 polyurethane Substances 0.000 title claims abstract description 57
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 56
- 239000002649 leather substitute Substances 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title abstract description 12
- 241000321398 Dermatolepis dermatolepis Species 0.000 title description 10
- 239000004744 fabric Substances 0.000 claims abstract description 21
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 20
- 239000011248 coating agent Substances 0.000 claims abstract description 18
- 238000000576 coating method Methods 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000005187 foaming Methods 0.000 claims abstract description 12
- 239000002002 slurry Substances 0.000 claims abstract description 8
- 239000002562 thickening agent Substances 0.000 claims description 41
- 239000003431 cross linking reagent Substances 0.000 claims description 28
- 239000004094 surface-active agent Substances 0.000 claims description 21
- 239000003795 chemical substances by application Substances 0.000 claims description 20
- 150000001450 anions Chemical class 0.000 claims description 19
- -1 amido silicon Chemical compound 0.000 claims description 18
- 239000006071 cream Substances 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 16
- 239000000049 pigment Substances 0.000 claims description 16
- 238000004040 coloring Methods 0.000 claims description 13
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 13
- 239000000194 fatty acid Substances 0.000 claims description 13
- 229930195729 fatty acid Natural products 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 12
- 239000012948 isocyanate Substances 0.000 claims description 11
- 150000002513 isocyanates Chemical group 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 10
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 8
- 239000001913 cellulose Substances 0.000 claims description 8
- 229920002678 cellulose Polymers 0.000 claims description 8
- 239000004745 nonwoven fabric Substances 0.000 claims description 8
- 229920003169 water-soluble polymer Polymers 0.000 claims description 8
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 6
- 239000000975 dye Substances 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 6
- 239000004088 foaming agent Substances 0.000 claims description 6
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 235000012239 silicon dioxide Nutrition 0.000 claims description 6
- 239000003381 stabilizer Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 4
- 150000004996 alkyl benzenes Chemical class 0.000 claims description 4
- 150000002148 esters Chemical class 0.000 claims description 4
- 125000005313 fatty acid group Chemical group 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- 229920000570 polyether Polymers 0.000 claims description 4
- 229920002545 silicone oil Polymers 0.000 claims description 4
- 238000007598 dipping method Methods 0.000 claims description 3
- 108010010803 Gelatin Proteins 0.000 claims description 2
- 229920000881 Modified starch Polymers 0.000 claims description 2
- 239000004368 Modified starch Substances 0.000 claims description 2
- 239000003093 cationic surfactant Substances 0.000 claims description 2
- 210000003746 feather Anatomy 0.000 claims description 2
- 229920000159 gelatin Polymers 0.000 claims description 2
- 239000008273 gelatin Substances 0.000 claims description 2
- 235000019322 gelatine Nutrition 0.000 claims description 2
- 235000011852 gelatine desserts Nutrition 0.000 claims description 2
- 235000019426 modified starch Nutrition 0.000 claims description 2
- 239000003921 oil Substances 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 210000002268 wool Anatomy 0.000 claims description 2
- 239000002904 solvent Substances 0.000 abstract description 15
- 239000010985 leather Substances 0.000 abstract description 8
- 238000001035 drying Methods 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 229920005989 resin Polymers 0.000 abstract description 3
- 239000011347 resin Substances 0.000 abstract description 3
- 231100000252 nontoxic Toxicity 0.000 abstract description 2
- 230000003000 nontoxic effect Effects 0.000 abstract description 2
- 238000012805 post-processing Methods 0.000 abstract 2
- 239000002612 dispersion medium Substances 0.000 abstract 1
- 238000005470 impregnation Methods 0.000 abstract 1
- 230000000704 physical effect Effects 0.000 abstract 1
- 239000004902 Softening Agent Substances 0.000 description 5
- 239000003960 organic solvent Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000004049 embossing Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 235000020420 bandung Nutrition 0.000 description 1
- 230000003542 behavioural effect Effects 0.000 description 1
- 210000000085 cashmere Anatomy 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
本发明涉及一种水性聚氨酯合成革base的制造方法。水性聚氨酯树脂是以水为分散介质，无毒环保，安全不燃，是溶剂型树脂的最佳替代产品，但其在合成革上的应用相对来说比较滞后，主要集中在合成革的表面整饰。本发明设计底布→预处理→烘干→浸渍水性聚氨酯浆料→涂覆水性聚氨酯发泡涂层→烘干的步骤制造水性聚氨酯合成革base，产品具有溶剂型湿法合成革base的基本结构，手感与物性接近溶剂型合成革base；整个生产过程中不使用任何溶剂进行加工；可被用于任何合成革产品的后加工制造；采用水性聚氨酯材料进行后加工，可用做鞋革、沙发革、箱包革、服装革等。The present invention relates to a method for manufacturing a waterborne polyurethane synthetic leather base. Waterborne polyurethane resin uses water as a dispersion medium, is non-toxic, environmentally friendly, safe and non-flammable, and is the best substitute for solvent-based resins. However, its application in synthetic leather is relatively lagging, and is mainly focused on the surface finishing of synthetic leather. The present invention designs the steps of base fabric → pretreatment → drying → impregnation with waterborne polyurethane slurry → coating with waterborne polyurethane foaming coating → drying to manufacture waterborne polyurethane synthetic leather base. The product has the basic structure of solvent-based wet synthetic leather base, and its feel and physical properties are close to those of solvent-based synthetic leather base; no solvent is used for processing in the entire production process; it can be used for post-processing and manufacturing of any synthetic leather product; it adopts waterborne polyurethane material for post-processing, and can be used to make shoe leather, sofa leather, luggage leather, clothing leather, etc.
Description
Technical field
The present invention relates to a kind of manufacturing approach of aqueous polyurethane synthetic leather bass.
Background technology
Contain a large amount of volatile organic solvent (VOC) in the solvent type resin, in use enter atmosphere, not only destroy environment, be detrimental to health, also cause the waste of the resource and the energy simultaneously.Present whole synthetic leather industry production processing all is that to be based upon with the solvent borne polyurethane be in the basic unit of main body; In the production process in a large number with an organic solvent; Like dimethyl formamide, MEK, acetone, toluene, ethyl acetate etc., these solvents are very harmful to human body.General use for synthetic leather polyurethane resin solid content is about 30%, and the organic solvent amount reaches 70%, and in the process of synthetic leather, also can add certain amount of organic solvent again, so the use amount of organic solvent is bigger during actual production.Although in recent years because the rise of the prices of raw and semifnished materials; The restriction of aspects such as environment protection emission; Make enterprise have to consider the recycling of solvent, the solvent recovery ability reaches about 90%, but still has the solvent about 10% to reclaim; Mode with gas and waste water has been discharged in the environment, and environment and human body have been caused very big harm.
Waterborne polyurethane resin is to be decentralized medium with water, has nontoxic, environmental protection, safety, advantage such as do not fire, and be the best substitute products of solvent type resin.But the application of waterborne polyurethane resin on synthetic leather relatively lags behind comparatively speaking; Mainly concentrate on the surface finish of synthetic leather; Have only the water-based dry method to move technology such as membrane technology and printing and be applied in the actual production, aqueous polyurethane synthetic leather bass also only is in the development in laboratory stage.
Summary of the invention
The manufacturing approach that the purpose of this invention is to provide a kind of aqueous polyurethane synthetic leather bass; Through adopting waterborne polyurethane resin can make the aqueous polyurethane use for synthetic leather semi-finished product of nonwoven fabric base with similar solvent-borne type wet-process coating; The structure of itself and solvent-borne type wet method bass is similar, but production process uses the waterborne polyurethane resin of more environmental protection to make the synthetic leather bass.
The technical scheme that the present invention adopted is: a kind of manufacturing approach of aqueous polyurethane synthetic leather bass is characterized in that: comprise the steps that successively (a) prepares base fabric: base fabric is selected a kind of in nonwoven fabric, woven cloth or the knitted cloth for use; (b) preliminary treatment: finishing agent solution formula ratio is: water soluble polymer: 0-3 part; Organosilicon drilling additives: 1-3 part; Water: 100 parts; Preliminary treatment base fabric liquid carrying rate is 30～100%; (e) apply the aqueous polyurethane intumescent coating: aqueous polyurethane foaming layer formula of size ratio is: waterborne polyurethane resin: 100 parts; Foaming agent: 1.5-2 part; Foam stabilizer: 2-3 part; Thickener: 1-4 part; Colouring agent: 1 part; Crosslinking agent: 0-3 part; Physique filler: 1 part; The foaming slurry density is 300～700g/L; The every square meter coating weight of coating liquid is 100～800g/m
2(f) Infrared Heating or microwave dryer are adopted in oven dry, oven dry usually.
Water soluble polymer content is 2-3 part in the above-mentioned steps (b), and preliminary treatment base fabric liquid carrying rate is 50～80; (e) the foaming slurry density is 400～600g/L in the step; The every square meter coating weight of coating liquid is 200～500g/m
2
Water soluble polymer is polyvinyl alcohol, cellulose derivative, gelatin or modified starch in the above-mentioned steps (b); Organosilicon drilling additives is amido silicon oil or amino-modified silicone oil softener; Waterborne polyurethane resin is anion fat adoption ester type, anion fat adoption ether type, anion fat adoption ester-polyether-type, anion aromatic polyester type, anion aromatic polyether type or anion aromatic polyester-polyether-type in the step (e); Thickener is acrylic thickener, polyurethanes thickener or cellulose thickener; Crosslinking agent is isocyanate-based crosslinking agent or melamine-type crosslinking agent; Colouring agent is aqueous pigment cream or dyestuff; Foaming agent is fatty acid salt surfactant, fatty alcohol sulphuric acid salt surfactant, alkyl benzene sulphonate surfactant; Foam stabilizer is fatty acid amide surfactants, amine-oxides surfactant or cationic surfactant; The physique filler is superfine silicon dioxide, Paris white, ultra-fine natural skin powder, natural feather powder, natural wool powder, natural silk powder or lignocellulose.
Water soluble polymer is a polyvinyl alcohol in the above-mentioned steps (b); Organosilicon drilling additives is the amino-modified silicone oil softener; Waterborne polyurethane resin is anion fat adoption ester-polyether-type and anion aromatic polyester-polyether-type in the step (e); Thickener is acrylic thickener, polyurethanes thickener or cellulose thickener, preferably uses acrylic compounds and polyurethanes thickener; Crosslinking agent is isocyanate-based crosslinking agent; Colouring agent is aqueous pigment cream or dyestuff, preferably uses aqueous pigment cream; Foaming agent is fatty acid salt surfactant and alkyl benzene sulphonate surfactant; Foam stabilizer is a fatty acid amide surfactants; The physique filler is superfine silicon dioxide, lignocellulose, Paris white or ultra-fine natural skin powder.
Above-mentioned (b) step and (e) between also comprise following two steps: (c) oven dry: bake out temperature is 80～160 ℃ ℃; (d) steep water based polyurethane slurry: the aqueous polyurethane slurry is to be got by one or more mixing in waterborne polyurethane resin, thickener, crosslinking agent and the colouring agent, and its pulp solution formula rate is: waterborne polyurethane resin: 100 parts; Water: 0-30 part; Thickener: 1-4 part; Colouring agent: 1-3 part; Crosslinking agent: 0-1 part; Dipping back nonwoven fabric liquid carrying rate 50～60%.
Bake out temperature is 130～150 ℃ in above-mentioned (c) step; Waterborne polyurethane resin is anion fat adoption ester type, anion fat adoption ether type, anion fat adoption ester-polyether-type, anion aromatic polyester type, anion aromatic polyether type or anion aromatic polyester-polyether-type in the step (d); Thickener is acrylic thickener, polyurethanes thickener or cellulose thickener; Crosslinking agent is isocyanate-based crosslinking agent or melamine-type crosslinking agent; Colouring agent is aqueous pigment cream or dyestuff.
Waterborne polyurethane resin is anion fat adoption ester-polyether-type and anion aromatic polyester-polyether-type in the above-mentioned steps (d); Thickener is acrylic compounds or polyurethanes thickener; Crosslinking agent is isocyanate-based crosslinking agent; Colouring agent is an aqueous pigment cream.
The present invention has the following advantages: the aqueous polyurethane synthetic leather bass through the present invention's preparation, have the basic structure of solvent-borne type wet-method synthetic leather bass, and its feel and rerum natura are near solvent-borne type synthetic leather bass; Do not use any solvent to process in the whole process of production; Can be used to the back processing and manufacturing of any synthetic leather product, move film, printing spraying, embossing embossing, flour milling etc., particularly select for use the back processing of waterborne polyurethane resin material to have more the feature of environmental protection like dry method; Adopt water-base polyurethane material to carry out back processing, can be used as footwear leather, sofa artificial leather, luggage leather, clothing leather etc., compare no solvent residue in finished product, health is not had harm with the solvent-borne type product; Process route of the present invention is simple, and to compare Costco Wholesale suitable with solvent-borne type, do not use solvent in the whole process of production, and basic VOC free discharging had both reduced solvent reclaimer input, use cost, had reduced energy waste and environmental pollution again.
The specific embodiment
Below in conjunction with specific embodiment the present invention is at length explained.
Capital equipment involved in the specific embodiment of the invention comprises: put cloth holder, Chu Buji, band knobbling rolls dipping tank, be coated with conventional equipments such as head, infrared or microwave drying typing line, winder.
Employed portioned product title, purposes and behavioral illustrations in the specific embodiment of the invention:
Embodiment 1: (a) base fabric is the employing W-1023S120 of Fujian Nanfang Co., Ltd. nonwoven fabric, 1.0mm, 230g/m in the step
2, PA30/PET70; (b) the finishing agent solution formula is in the step:
Preliminarytreatment base fabric liquid carrying rate is 60%.
| Polyvinyl alcohol | 2 parts |
| Softening agent for fibres | 1 part |
| Water | 100 parts |
(c) bake out temperature is 130 ℃ in the step.
(d) the aqueous polyurethane formula of size is in the step:
Dippingback nonwoven fabric liquid carrying rate 60%.
| Anion fat family aqueous polyurethane | 100 parts |
| Water | 30 parts |
| Acrylic thickener | 4 parts |
| Aqueous pigment cream | 3 parts |
| The isocyanates crosslinking agent | 1 part |
(e) the aqueous polyurethane formula of size is in the step:
Adoptthe blade coating mode to apply behind the mechanical foaming.
| Anion fat family aqueous polyurethane | 100 parts |
| The fatty acid salt surfactant | 2 parts |
| The succinyl amine salt | 3 parts |
| Acrylic thickener | 4 parts |
| Aqueous pigment cream | 1 part |
| The isocyanates crosslinking agent | 3 parts |
| Superfine silicon dioxide | 1 part |
(f) microwave drying, microwave 10KV are adopted in oven dry in the step.
Embodiment 2: (a) base fabric is the employing HS-1028 of Fujian Nanfang Co., Ltd., 1.0mm, 280g/m in the step
2High-density non-woven fabrics.
(b) the finishing agent solution formula is in the step:
Preliminarytreatment base fabric liquid carrying rate is 50%.
| Polyvinyl alcohol | 3 parts |
| Softening agent for fibres | 1.5 part |
| Water | 100 parts |
(c) bake out temperature is 150 ℃ in the step.
(d) the aqueous polyurethane formula of size is in the step:
Dippingback nonwoven fabric liquid carrying rate 50%.
| The anion aromatic waterborne polyurethane | 100 parts |
| The polyurethanes thickener | 1 part |
| Aqueous pigment cream | 1 part |
(e) the aqueous polyurethane formula of size is in the step:
Adoptroll coating model to apply behind the mechanical foaming.
| The anion aromatic waterborne polyurethane | 100 parts |
| The fatty acid salt surfactant | 1.5 part |
| The succinyl amine salt | 2 parts |
| The polyurethanes thickener | 1 part |
| Aqueous pigment cream | 1 part |
| Lignocellulose | 1 part |
(f) microwave drying, microwave 10KV are adopted in oven dry in the step.
Embodiment 3: (a) base fabric is single for adopting Fu Jiannan to spin 0.55mm PU leather base cloth (grey black, wet) in the step.
(b) the finishing agent solution formula is in the step:
(c),(d) two steps need not carry out, and directly carry out (e) step.
| Softening agent for fibres | 1 part |
| Water | 100 parts |
(e) the aqueous polyurethane formula of size is in the step:
Adoptthe blade coating mode to apply behind the mechanical foaming.
| Anion fat family aqueous polyurethane | 100 parts |
| The fatty acid salt surfactant | 2 parts |
| The succinyl amine salt | 3 parts |
| Acrylic thickener | 4 parts |
| Aqueous pigment cream | 1 part |
| The isocyanates crosslinking agent | 3 parts |
| Superfine silicon dioxide | 1 part |
(f) the Infrared Heating mode is adopted in oven dry in the step, and the oven temperature gradient is at 50-70-90-110-130 ℃.
Embodiment 4: (a) base fabric is given birth to through compiling the imitative cashmere of 0.7mm black for adopting Haining person of outstanding talent in the step.
(b) the finishing agent solution formula is in the step:
Preliminary treatment base fabric liquid carrying rate is 50%.[0032] (c) in the step bake out temperature be 150 ℃.[0033] (c), (d) two steps need not carry out, and directly carry out (e) step; (e) the aqueous polyurethane formula of size is in the step:
Adoptthe blade coating mode to apply behind the mechanical foaming.
| Softening agent for fibres | 3 parts |
| Water | 100 parts |
| The anion aromatic waterborne polyurethane | 100 parts |
| The fatty acid salt surfactant | 1.5 part |
| The succinyl amine salt | 2 parts |
| The polyurethanes thickener | 1 part |
| Aqueous pigment cream | 1 part |
| Lignocellulose | 1 part |
(f) the Infrared Heating mode is adopted in oven dry in the step, and the oven temperature gradient is at 50-70-90-110-130 ℃.
Embodiment 5: (a) base fabric is to adopt Bandung, Wujiang 50Dx75D 140g of Fabritex S.r.l. through compiling suede nap in the step.
(b) the finishing agent solution formula is in the step:
Preliminary treatment base fabric liquid carrying rate is 40%; (c), (d) two steps need not carry out, and directly carry out (e) step; (e) the aqueous polyurethane formula of size is in the step:
Adoptthe blade coating mode to apply behind the mechanical foaming.
| Softening agent for fibres | 1 part |
| Water | 100 parts |
| The anion aromatic waterborne polyurethane | 100 parts |
| The fatty acid salt surfactant | 1.5 part |
| The succinyl amine salt | 2 parts |
| The polyurethanes thickener | 1 part |
| Aqueous pigment cream | 1 part |
| Lignocellulose | 1 part |
(f) the Infrared Heating mode is adopted in oven dry in the step, and the oven temperature gradient is at 50-70-90-110-130 ℃.
Claims (7)
1. the manufacturing approach of an aqueous polyurethane synthetic leather base is characterized in that: comprise the steps successively
(a) prepare base fabric:
(b) preliminary treatment: finishing agent solution formula ratio is:
Water soluble polymer: 0-3 part;
Organosilicon drilling additives: 1-3 part;
Water: 100 parts;
Preliminary treatment base fabric liquid carrying rate is 30 ~ 100%;
(e) apply the aqueous polyurethane intumescent coating: aqueous polyurethane foaming layer formula of size ratio is:
Waterborne polyurethane resin: 100 parts;
Foaming agent: 1.5-2 part;
Foam stabilizer: 2-3 part;
Thickener: 1-4 part;
Colouring agent: 1 part;
Crosslinking agent: 0-3 part;
Physique filler: 1 part;
The foaming slurry density is 300 ~ 700g/L; The every square meter coating weight of coating liquid is 100 ~ 800g/m
2
(f) oven dry, Infrared Heating or microwave dryer are adopted in oven dry.
2. the manufacturing approach of a kind of aqueous polyurethane synthetic leather base according to claim 1 is characterized in that: water soluble polymer content is 2-3 part in the said step (b), and preliminary treatment base fabric liquid carrying rate is 50 ~ 80%; (e) the foaming slurry density is 400 ~ 600g/L in the step; The every square meter coating weight of coating liquid is 200 ~ 500g/m
2
3. the manufacturing approach of a kind of aqueous polyurethane synthetic leather base according to claim 1 and 2 is characterized in that: water soluble polymer is polyvinyl alcohol, cellulose derivative, gelatin or modified starch in the step (b); Organosilicon drilling additives is amido silicon oil or amino-modified silicone oil softener; Waterborne polyurethane resin is anion fat adoption ester type, anion fat adoption ether type, anion fat adoption ester-polyether-type, anion aromatic polyester type, anion aromatic polyether type or anion aromatic polyester-polyether-type in the step (e); Thickener is acrylic thickener, polyurethanes thickener or cellulose thickener; Crosslinking agent is isocyanate-based crosslinking agent or melamine-type crosslinking agent; Colouring agent is aqueous pigment cream or dyestuff; Foaming agent is fatty acid salt surfactant, fatty alcohol sulphuric acid salt surfactant, alkyl benzene sulphonate surfactant; Foam stabilizer is fatty acid amide surfactants, amine-oxides surfactant or cationic surfactant; The physique filler is superfine silicon dioxide, Paris white, ultra-fine natural skin powder, natural feather powder, natural wool powder, natural silk powder or lignocellulose.
4. the manufacturing approach of a kind of aqueous polyurethane synthetic leather base according to claim 3 is characterized in that: water soluble polymer is a polyvinyl alcohol in the step (b); Organosilicon drilling additives is the amino-modified silicone oil softener; Waterborne polyurethane resin is anion fat adoption ester-polyether-type and anion aromatic polyester-polyether-type in the step (e); Thickener is acrylic thickener, polyurethanes thickener or cellulose thickener; Crosslinking agent is isocyanate-based crosslinking agent; Colouring agent is aqueous pigment cream or dyestuff; Foaming agent is fatty acid salt surfactant and alkyl benzene sulphonate surfactant; Foam stabilizer is a fatty acid amide surfactants; The physique filler is superfine silicon dioxide, lignocellulose, Paris white or ultra-fine natural skin powder.
5. the manufacturing approach of a kind of aqueous polyurethane synthetic leather base according to claim 1 is characterized in that: said (b) step and (e) between also comprise following two steps:
(c) oven dry: bake out temperature is 80 ~ 160 ℃;
(d) steep water based polyurethane slurry: the pulp solution formula rate is following
Waterborne polyurethane resin: 100 parts;
Water: 0-30 part;
Thickener: 1-4 part;
Colouring agent: 1-3 part;
Crosslinking agent: 0-1 part;
Dipping back nonwoven fabric liquid carrying rate 50 ~ 60%.
6. the manufacturing approach of a kind of aqueous polyurethane synthetic leather base according to claim 5 is characterized in that: bake out temperature is 130 ~ 150 ℃ in said (c) step; Waterborne polyurethane resin is anion fat adoption ester type, anion fat adoption ether type, anion fat adoption ester-polyether-type, anion aromatic polyester type, anion aromatic polyether type or anion aromatic polyester-polyether-type in the step (d); Thickener is acrylic thickener, polyurethanes thickener or cellulose thickener; Crosslinking agent is isocyanate-based crosslinking agent or melamine-type crosslinking agent; Colouring agent is aqueous pigment cream or dyestuff.
7. the manufacturing approach of a kind of aqueous polyurethane synthetic leather base according to claim 6 is characterized in that: waterborne polyurethane resin is anion fat adoption ester-polyether-type and anion aromatic polyester-polyether-type in the said step (d); Thickener is acrylic compounds or polyurethanes thickener; Crosslinking agent is isocyanate-based crosslinking agent; Colouring agent is an aqueous pigment cream.
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| CN2010106072077A CN102080332B (en) | 2010-12-27 | 2010-12-27 | A kind of manufacture method of waterborne polyurethane synthetic leather bass |
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|---|---|---|---|
| CN2010106072077A CN102080332B (en) | 2010-12-27 | 2010-12-27 | A kind of manufacture method of waterborne polyurethane synthetic leather bass |
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|---|---|---|---|---|
| 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 |
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