CN102021837A - Superfine fiber synthetic leather, preparation method thereof and printing material composition - Google Patents
Superfine fiber synthetic leather, preparation method thereof and printing material composition Download PDFInfo
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Abstract
The invention discloses a preparation method for superfine fiber synthetic leather, which comprises the following step of: performing printing treatment, water washing, and dry rubbing on the superfine fiber synthetic leather obtained by cover making of a dry-process overlaying process, wherein a printing material in printing treatment comprises the following components in part by weight: 100 parts of waterborne polyurethane resin, 10 to 50 parts of water, preferably 20 to 40 parts of water, and 5 to 40 parts of water-based ink, preferably 10 to 30 parts of water-based ink; the temperature of water washing is 40 to 90DEG C, preferably 50 to 70DEG C; and the time of water washing is 15 to 50 minutes, preferably 25 to 40 minutes. The invention also discloses the superfine fiber synthetic leather prepared by the method. The superfine fiber synthetic leather is washable superfine fiber synthetic leather, and has excellent comprehensive physical properties, dual-color effect and the handfeel of natural leather. The invention also discloses a printing material composition.
Description
Technical field
The present invention is specifically related to a kind of superfine fiber chemical leather, its preparation method and a kind of printed material composition.
Background technology
Superfine fiber chemical leather is the direction of synthetic leather future development, is now approved by market gradually.Traditional Synthetic Leather generally adopts raising machine to weave cotton cloth or knitted cloth processes, though outward appearance, feel are better, but be difficult to reach the requirement of high-grade sports play shoes material on the rerum natura, and ordinary polyester or wash that the PU synthetic leather feel of bright and beautiful nonwoven production is bad, rerum natura relative mistake, quality be heavy, do not meet and consume requirement from now on.Superfine fiber chemical leather is an artificial leather synthetic leather product of new generation, and it does matrix with the nonwoven fabric of three-dimensional net structure, and has the netted and nylon fascicular texture of polyurethane of open-celled structure, really simulates the form of natural leather.The fiber number of superfine fibre is less than 0.3 dawn, the fiber number minimum reached for 0.0001 dawn, huge surface area gives superfine fiber chemical leather strong water sorption, make the moisture-absorption characteristics of superfine fiber chemical leather to compare favourably with natural leather with the ultra-fine collagenous fibres of pencil, no matter thereby superfine fiber chemical leather microstructure, physical characteristic, appearance tactile impression and snugness of fit internally, and aspects such as outward appearance feel, gas permeability and elasticity all can compare favourably with natural leather, can be used as the substitute products of high-grade natural leather fully.Therefore we can say that superfine fiber chemical leather has revolutionary meaning for artificial leather synthetic leather industry, it has pushed artificial leather synthetic leather industry to higher development level, has become the first-selected product that replaces natural skin and common leather.At present, the designs and varieties of superfine fiber chemical leather product are fewer, and the development ability of the super fine producer of home and overseas is uneven, and it is fierce unusually to compete.The user still expects to be had more the superfine fiber chemical leather of the apparent effect of the feel of natural skin and high emulation.
The washing synthetic leather has appearred in the synthetic leather field, its preparation method is generally the synthetic leather printing of having made is changed colour, make the synthetic leather washing make leather have two-color effect, but the washing superfine fiber chemical leather does not also appear up to now, because the structure that the not super fine leather of common leather has the superfine fibre at 0.01 to 0.001 dawn like that and has similar corium, make absorption affinity and the uniformity difference to some extent of the shrinkage factor of two kinds of washing leather, surperficial colorant, super fine leather is difficult for washing, material and washing process are printed in adjustment specially.And wash common synthetic leather many physical properties such as grammes per square metre, tearing strength, TENSILE STRENGTH and elongation at break etc. are not required, and the super fine leather of washing there is related request to above-mentioned physical property.
Summary of the invention
Technical problem to be solved by this invention has provided a kind of superfine fiber chemical leather and preparation method thereof.Superfine fiber chemical leather of the present invention is a kind of washing superfine fiber chemical leather, and its comprehensive physical properties excellent has two-color effect, and has the feel of natural leather.
Key of the present invention is, to print washing process and be applied to superfine fiber chemical leather, in the preparation technology's of superfine fiber chemical leather print steps, select a kind of special printed material prescription, and the step that in preparation technology, increases step washing, and the special temperature and time of selecting washing, these special conditions and other process combine, promptly can make superfine fiber chemical leather, and the superfine fiber chemical leather of gained has excellent physical property with two-color effect and natural leather feel.
Therefore the present invention relates to a kind of preparation method of superfine fiber chemical leather, it comprises the following step: the dry method surfacing process is made the superfine fiber chemical leather that face obtains carry out printing treatment, and washing, dry rub gets final product; Wherein, the prescription of the printed material in the described printing treatment is as follows: waterborne polyurethane resin: 100 parts; Water: 10-50 part, preferred 20-40 part; Water color ink 5-40 part, preferred 10-30 part more than is parts by weight; The temperature of described washing is 40-90 ℃, and preferred 50-70 ℃, best is 55 ℃, and the time of washing is 15-50 minute, preferred 25-40 minute.
Among the present invention, the method for described dry method surfacing process and condition all can be the conventional method and the condition of this type of technology of this area, and processing step is generally 1) batching is stirred, batching is generally polyurethane leather resin, toner and auxiliary agent; 2) release liners is imported streamline, be coated with the head place and add materials, material motion with release liners between the space that is coated with a steel rod and release liners is coated the thin layer material on the release liners surface, then oven dry; 3) on being coated with the head place, in the intact binding material, superfine fiber fabric is sticked, then oven dry; 4) microfiber synthetic leather of oven dry is peeled off from release liners.The 2nd), 3) and 4) step is a pile line operation, use equipment be to shift the associating coating machine.Preferred especially following method of the present invention and condition: preferable as follows of the composition of raw materials of described dry method surfacing process: leather is with 100 parts of polyurethane resins, solvent 10-100 part, and toner 1-20 part, dispersing aid 0.1-5 part more than is parts by weight.The used leather in middle level with polyurethane resin preferable be two kinds of resins by Zhejiang Province Huafeng synthetic resin Co., Ltd's exploitation, a kind of is common dry method resin, elastic modelling quantity is about 3Mpa, another kind of for adding the resin of softener, can make leather products soft, no plastic cement characteristic, the part by weight of above-mentioned two kinds of resins is preferable is the common dry method resin of portions of resin that adds softener=3: 2 can make superfine fiber chemical leather have the excellent comprehensive performance like this.The release liners trade mark used in the described dry method veneer can be selected in existing release liners by customer requirement; In described dry method surfacing process, each be coated with platform preferable three districts are arranged, each be coated with platform from a district to the temperature in end district preferable be 60-150 ℃; In the coating procedure of described dry method surfacing process, preferable have at least one above coated weight that is coated with, and coating can be: scraper, two is coated with gap 100-300 μ m, three and is coated with gap 100-200 μ m, and that associating coating machine linear speed is preferable is 3-7m/min.
Among the present invention, what described waterborne polyurethane resin was preferable is watersoluble modified aliphatic polyurethane, the strong cohesive force 170A that preferred Si Taer holding company (Stahl) produces and the compound of two kinds of resins of weak cohesive force 170B, what the weight ratio of 170A and 170B was preferable is 70: 30 to 90: 10, preferred 80: 20.Printed material attached to the superfine fiber chemical leather surface after, strong cohesive force resin is easier to be penetrated in the superfine fiber chemical leather scrimp and to be difficult to flush away, the printed material of surface layer is because weak bonding force resin adheres to more and easier flush away.
Among the present invention, what described water color ink was preferable is watersoluble modified aliphatic polyurethane printing ink, and the better model for the production of Si Taer company is one or more in red KF-04, black KF-08, white KF-06 and the yellow KF-05 water color ink.Printing ink is used colouring agent for printing, is made up of pigment, link stuff and auxiliary agent etc., and wherein link stuff is a main component, and the printing ink that use modified aliphatic polyurethane resin is made as link stuff is watersoluble modified aliphatic polyurethane printing ink.
Among the present invention, the technology of described printing treatment can be adopted as this area common process method, and the general technology step is as follows: the first step: batching, various material are mixed stirring at normal temperature, and make printed material, equipment uses mixer; Second step: printing, printed material is poured on the print roller of lower end, make material on print roller, evenly apply by the scraper effect, between two print roller, two roll-in seal carving were brushed about the superfine fiber chemical leather that the dry method veneer was handled imported.Other operating conditions such as print wheel, the speed of a motor vehicle and the temperature etc. of described printing treatment all can be this area normal condition, and wherein, what print wheel was preferable is the 50-150 order, and that the speed of a motor vehicle is preferable is 1-10m/min, and what the temperature of printing treatment was preferable is 100-180 ℃.
Described washing is the leather after the printing to be rubbed at water rub the line washing in the machine, and the printed material on flush away superfine fiber chemical leather surface keeps the printing colorant in the lines.
Described dry rub is to dry and rub line with taking out through the product after the washing, thereby obtains having the superfine fiber chemical leather of two-color effect; What the temperature of dry rub was preferable is 50-80 ℃, and better is 50-70 ℃; That the time of dry rub is preferable is 5-20min, and that better is 5-15min.
Among the preparation method of the present invention, above-mentioned each optimum condition can make up arbitrarily, promptly gets each preferred embodiments of the present invention.
The invention further relates to the superfine fiber chemical leather that makes by above-mentioned preparation method.
Superfine fiber chemical leather of the present invention, promptly washing superfine fiber chemical leather is the new product of answering market to need, the fine and smooth lines of product feel is full, and has two-color effect and the style of missing old times or old friends modelled after an antique.Current super fine production firm does not both at home and abroad also have similar products like to sell on market, so produce market has a extensive future.
The invention still further relates to a kind of printed material composition, it comprises waterborne polyurethane resin, water and water color ink, and wherein the weight fraction of waterborne polyurethane resin is 100 parts; The parts by weight of water are 10-50 part, preferred 20-40 part; The parts by weight of water color ink are 5-40 part, preferred 10-30 part.Wherein, the concrete selection of waterborne polyurethane resin and water color ink is all ditto described.
Except that specified otherwise, reagent that the present invention relates to and raw material are all commercially available to be got.
Positive progressive effect of the present invention is: compare with existing superfine fiber chemical leather product, the comprehensive physical properties excellent of superfine fiber chemical leather of the present invention, the product surface color is a dry method veneer look, look is the off-set oil mass colour in the leather lines, thereby product has two-color effect, and lines is full, has the feel of natural leather and the expression effect of high emulation.
Description of drawings
The photo that Fig. 1 takes with camera for the superfine fiber chemical leather that the comparative example makes.
The photo that the superfine fiber chemical leather that Fig. 2 makes for embodiment 1 is taken with camera.
The photo that the superfine fiber chemical leather that Fig. 3 makes for embodiment 2 is taken with camera.
The specific embodiment
Further specify the present invention with embodiment below, but the present invention is not limited.
Below among each embodiment, dispersing aid 9565 is the product of BYK-L-9565 for the model that German Bi Ke chemistry Co., Ltd produces; Surface layer resin 8090 is the product of JF-S-8090 for the model that Zhejiang Province Huafeng synthetic resin Co., Ltd produces; 5025 stostes are the JF-A-5025 product that Zhejiang Province Huafeng synthetic resin Co., Ltd produces, and 8033 models of producing for Zhejiang Province Huafeng synthetic resin Co., Ltd are the product of JF-S-8033; 7853N is that the model that Zhejiang Province Huafeng synthetic resin Co., Ltd produces is the product of JF-S-7853; Release liners is the product of DE-14 for the model of buying from energy trade Co., Ltd from the Xiamen; The model that water color ink is produced for Si Taer company is the water color ink of red KF-04, black KF-08, white KF-06 and yellow KF-05; Superfine fiber fabric is that the model that Shanghai Huafon Micreofibre Technology Co., Ltd. produces is 8R60D
2The superfine fiber fabric of X-145, toner are that the model that the grand pigment Co., Ltd in sky, Shunde District, Foshan City produces is the mixing toner of white SP-2606, black SP-1698, red SP-4684 and yellow 2A005.
DMF is N, and dinethylformamide, MEK are butanone, and TOL is a toluene.
Below ratio among each embodiment be ratio of weight and number.
The comparative example
Adopt superfine fiber fabric.Dry method veneer release liners DE-14, surface layer resin and solvent are according to mass ratio 8090: DMF: MEK: TOL=100 part: 30 parts: 15 parts: 25 parts, add (9565) 0.1 parts of dispersing aiies, 10 parts of toners; Middle level resin and solvent are according to 8033 (dry method surface layer resin): 7853N (adding the softener resin): MEK: DMF: TOL=60 part: 40 parts: 15 parts: 30 parts: 25 parts, 16.5 parts (wherein white SP-2606: black SP-1698: red SP-4684: yellow 2A005=10 part: 0.5 part: 1 part: 5 parts), bed material uses 5025 stostes to toner.Cutter is coated with 180 μ m apart from using scraper, to be coated with 250 μ m, two respectively, be coated with the platform temperature and be followed successively by one and be coated with 80 ℃, 120 ℃, 130 ℃, two are coated with 80 ℃, 120 ℃, 130 ℃, and three are coated with 110 ℃, 120 ℃, 135 ℃, speed of a motor vehicle 5.7m/min promptly makes common superfine fiber leather.
Embodiment 1
Adopt superfine fiber fabric.Dry method veneer release liners DE-14, surface layer resin and solvent are according to mass ratio 8090: DMF: MEK: TOL=100 part: 30 parts: 15 parts: 25 parts, add (9565) 0.1 parts of dispersing aiies, 12 parts of (SP-1698: SP-4684: SP-2606=1: 0.5: 10..5) of toner; Middle level resin and solvent (add the softener tree according to 8033 (dry method surface layer resin): 7853N
Fat): MEK: DMF: TOL=60: 40: 15: 30: 25,20 parts (wherein white SP-2606: black SP-1698: red SP-4684: yellow 2A005=15 part: 0.1 part: 4 parts: 0.9 part), bed material uses 5025 stostes to toner.Cutter is coated with 180 μ m apart from using scraper, to be coated with 250 μ m, two respectively, is coated with the platform temperature and is followed successively by one and is coated with 80 ℃, 120 ℃, 130 ℃, and two are coated with 80 ℃, 120 ℃, 130 ℃, and three are coated with 110 ℃, 120 ℃, 135 ℃, speed of a motor vehicle 5.7m/min.Promptly get superfine fiber chemical leather behind the dry method veneer.Carry out printing treatment then: the ratio of printed material waterborne polyurethane resin and water is according to 170A: 170B: water=70 part: 30 parts: 30 parts, 17 parts of water color inks (wherein KF-05: KF-06: KF-08: KF-04=10: 5: 1: 1), print wheel 100 orders, speed of a motor vehicle 2m/min, printing bake out temperature (i.e. " temperature of printing treatment ") 160 ℃.Sample is put into 65 ℃ of water temperatures rubbed line washing 35 minutes, 65 ℃ of dry rubs 50 minutes.
Embodiment 2
Will super fine base cloth do overflow and dye processing.Dry method veneer release liners DE-14, surface layer resin and solvent are according to 8090: DMF: MEK: TOL=100 part: 30 parts: 15 parts: 25 parts, add (9565) 0.1 parts of dispersing aiies, 10 parts of (wherein white SP-2606: black SP-1698: red SP-4684: yellow 2A005=5 part: 2 parts: 2 parts: 1 part) of toner; Middle level resin and solvent are according to 8033: 7853N: MEK: DMF: TOL=60 part: 40 parts: 15 parts: 30 parts: 25 parts, 12 parts (SP-1698: SP-4684: SP-2606=1: 0.5: 10..5), bed material uses 5025 stostes to toner.Cutter is coated with 180 μ m apart from using scraper, to be coated with 250 μ m, two respectively, is coated with the platform temperature and is followed successively by one and is coated with 80 ℃, 120,130 ℃, and two are coated with 80 ℃, 120 ℃, 130 ℃, and three are coated with 110 ℃, 120 ℃, 135 ℃, speed of a motor vehicle 5.7m/min.Promptly get superfine fiber chemical leather behind the dry method veneer.Carry out printing treatment then: the ratio of printed material waterborne polyurethane resin and water is according to 170A: 170B: water=80 part: 20 parts: 30 parts, 26 parts of water color inks (KF-05: KF-06: KF-08: KF-04=15: 10: 0.5: 0.5), print wheel 100 orders, speed of a motor vehicle 2m/min, 145 ℃ of printing temperatures.Sample is put into 55 ℃ of water temperatures rubbed line washing 35 minutes, 65 ℃ of dry rubs 50 minutes promptly get superfine fiber chemical leather of the present invention.
Embodiment 3
Will super fine base cloth do overflow and dye processing.Dry method veneer release liners DE-14, surface layer resin and solvent are according to 8090: DMF: MEK: TOL=100 part: 30 parts: 15 parts: 25 parts, add (9565) 5 parts of dispersing aiies, 10 parts of toners; Middle level resin and solvent are according to 8033: 7853N: MEK: DMF: TOL=60 part: 40 parts: 25 parts: 50 parts: 25 parts, and 20 parts of toners (SP-2606: 2A005: SP-1698=15: 4.5: 0.5), bed material uses 5025 stostes.Cutter is coated with 200 μ m apart from using scraper, to be coated with 100 μ m, two respectively, is coated with the platform temperature and is followed successively by one and is coated with 60 ℃, 120,130 ℃, and two are coated with 80 ℃, 120 ℃, 130 ℃, and three are coated with 110 ℃, 120 ℃, 150 ℃, speed of a motor vehicle 7m/min.Promptly get superfine fiber chemical leather behind the dry method veneer.Carry out printing treatment then: the ratio of printed material waterborne polyurethane resin and water is according to 170A: 170B: water=90: 10: 10,40 parts of water color inks (KF-05: KF-06: KF-08: KF-04=1: 30: 1.5: 7.5), print wheel 50 orders, speed of a motor vehicle 1m/min, 100 ℃ of printing temperatures.Sample is put into 40 ℃ of water temperatures rubbed line washing 50 minutes, 65 ℃ of dry rubs 50 minutes promptly get superfine fiber chemical leather of the present invention.
Embodiment 4
Will super fine base cloth do overflow and dye processing.Dry method veneer release liners DE-14, surface layer resin and solvent are according to 8090: DMF: MEK: TOL=100 part: 30 parts: 15 parts: 25 parts, add (9565) 3 parts of dispersing aiies, 10 parts of toners (SP-2606: 2A005: SP-1698=8: 1.5: 0.5); Middle level resin and solvent are according to 8033: 7853N: MEK: DMF: TOL=60 part: 40 parts: 5 parts: 2 parts: 3 parts, and 10 parts of toners (SP-2606: 2A005: SP-1698=8: 1.5: 0.5), bed material uses 5025 stostes.Cutter is coated with 100 μ m apart from using scraper, to be coated with 300 μ m, two respectively, is coated with the platform temperature and is followed successively by one and is coated with 60 ℃, 120,130 ℃, and two are coated with 80 ℃, 120 ℃, 130 ℃, and three are coated with 110 ℃, 120 ℃, 150 ℃, speed of a motor vehicle 3m/min.Promptly get superfine fiber chemical leather behind the dry method veneer.Carry out printing treatment then: the ratio of printed material waterborne polyurethane resin and water is according to 170A: 170B: water=80 part: 20 parts: 50 parts, 5 parts of water color inks (KF-05: KF-06: KF-08: KF-04=1: 1: 1: 2), print wheel 150 orders, speed of a motor vehicle 10m/min, 180 ℃ of printing temperatures.Sample is put into 90 ℃ of water temperatures rubbed line washing 15 minutes, 65 ℃ of dry rubs 50 minutes promptly get superfine fiber chemical leather of the present invention.
Embodiment 5
Will super fine base cloth do overflow and dye processing.Dry method veneer release liners DE-14, surface layer resin and solvent are according to 8090: DMF: MEK: TOL=100: 30: 15: 25, add (9565) 3 parts of dispersing aiies, 10 parts of toners (SP-2606: 2A005: SP-1698=8: 1: 1); Middle level resin and solvent are according to 8033: 7853N: MEK: DMF: TOL=60 part: 40 parts: 15 parts: 30 parts: 25 parts, and 1 part of toner (SP-2606=1), bed material uses 5025 stostes.Cutter is coated with 100 μ m apart from using scraper, to be coated with 300 μ m, two respectively, is coated with the platform temperature and is followed successively by one and is coated with 60 ℃, 120,130 ℃, and two are coated with 80 ℃, 120 ℃, 130 ℃, and three are coated with 110 ℃, 120 ℃, 150 ℃, speed of a motor vehicle 3m/min.Promptly get superfine fiber chemical leather behind the dry method veneer.Carry out printing treatment then: the ratio of printed material waterborne polyurethane resin and water is according to 170A: 170B: water=80 part: 20 parts: 20 parts, 10 parts of water color inks (KF-05: KF-06: KF-08: KF-04=1: 3: 4: 2), print wheel 150 orders, speed of a motor vehicle 10m/min, 180 ℃ of printing temperatures.Sample is put into 50 ℃ of water temperatures rubbed line washing 25 minutes, 65 ℃ of dry rubs 50 minutes promptly get superfine fiber chemical leather of the present invention.
Embodiment 6
Will super fine base cloth do overflow and dye processing.Dry method veneer release liners DE-14, surface layer resin and solvent are according to 8090: DMF: MEK: TOL=100 part: 30 parts: 15 parts: 25 parts, add (9565) 3 parts of dispersing aiies, 10 parts of toners (SP-2606: 2A005: SP-1698=8: 1.8: 0.2); Middle level resin and solvent are according to 8033: 7853N: MEK: DMF: TOL=60 part: 40 parts: 15 parts: 30 parts: 25 parts, and 1 part of toner (SP-2606=1), bed material uses 5025 stostes.Cutter is coated with 100 μ m apart from using scraper, to be coated with 300 μ m, two respectively, is coated with the platform temperature and is followed successively by one and is coated with 60 ℃, 120,130 ℃, and two are coated with 80 ℃, 120 ℃, 130 ℃, and three are coated with 110 ℃, 120 ℃, 150 ℃, speed of a motor vehicle 3m/min.Promptly get superfine fiber chemical leather behind the dry method veneer.Carry out printing treatment then: the ratio of printed material waterborne polyurethane resin and water is according to 170A: 170B: water=80 part: 20 parts: 40 parts, 30 parts of water color inks (KF-05: KF-06: KF-08: KF-04=15: 10: 3.5: 6.5), print wheel 150 orders, speed of a motor vehicle 10m/min, 180 ℃ of printing temperatures.Sample is put into 70 ℃ of water temperatures rubbed line washing 40 minutes, 65 ℃ of dry rubs 50 minutes promptly get superfine fiber chemical leather of the present invention.
The effect that effect embodiment 1 superfine fiber chemical leather of the present invention is taken with camera
The superfine fiber chemical leather that the comparative example makes is taken with camera, be the results are shown in Figure 1.
The superfine fiber chemical leather that embodiment 1 makes is taken with camera, be the results are shown in Figure 2.
The superfine fiber chemical leather that embodiment 2 makes is taken with camera, be the results are shown in Figure 3.
As seen from Figure 1, the superfine fiber chemical leather lines that the comparative example makes is full, with natural seemingly skin-deep, but does not adopt printing and washing process, no two-color effect.
As seen from Figure 2, the superfine fiber chemical leather of embodiment 1 gained has two-color effect preferably.
As seen from Figure 3, the process color of the leather surface of the superfine fiber chemical leather that embodiment 2 makes is by flush away, but process color is retained in the lines, forms two-color effect, compares surface effect and the simulated effect that has natural corium more with the superfine fiber chemical leather that embodiment 1 makes.
The physical property measurement result of the superfine fiber chemical leather that effect embodiment 2 embodiment 2 make
The superfine fiber chemical leather that embodiment 2 is made carries out physical property measurement, the results are shown in Table 1.
The physical data of the superfine fiber chemical leather that table 1 embodiment 2 makes
As can be seen from Table 1, superfine fiber chemical leather of the present invention has good comprehensive rerum natura.
Claims (13)
1. the preparation method of a superfine fiber chemical leather is characterized in that comprising the following step: the dry method surfacing process made the superfine fiber chemical leather that face obtains carries out printing treatment, and washing, dry rub gets final product; Wherein, the prescription of the printed material in the described printing treatment is as follows: waterborne polyurethane resin: 100 parts; Water: 10-50 part; Water color ink 5-40 part more than is parts by weight; The temperature of described washing is 40-90 ℃, and the time of washing is 15-50 minute.
2. preparation method as claimed in claim 1 is characterized in that: waterborne polyurethane resin: 100 parts; Water: 20-40 part; Water color ink 10-30 part more than is parts by weight.
3. preparation method as claimed in claim 1 is characterized in that: the composition of raw materials of described dry method surfacing process is as follows: 100 parts of polyurethane resins of leather, and solvent 10-100 part, toner 1-20 part, dispersing aid 0.1-5 part more than is parts by weight.
4. preparation method as claimed in claim 1, it is characterized in that: each parameter condition of described dry method surfacing process is as follows: the used leather polyurethane resin in middle level is two kinds of resins by Zhejiang Province Huafeng synthetic resin Co., Ltd's exploitation, a kind of is common dry method resin, and elastic modelling quantity is 3Mpa; Another kind of for adding the resin of softener; Adding the resin of softener and the part by weight of common dry method resin is 3: 2; In described dry method surfacing process, each is coated with platform three districts, and each is coated with the temperature of platform from a district to the end district and is 60-150 ℃; In the coating procedure of described dry method surfacing process, at least one above coated weight that is coated with is arranged, coating is: scraper, two is coated with gap 100-300 μ m, three and is coated with gap 100-200 μ m, and associating coating machine linear speed is 3-7m/min.
5. preparation method as claimed in claim 1 is characterized in that: described waterborne polyurethane resin is watersoluble modified aliphatic polyurethane.
6. preparation method as claimed in claim 5 is characterized in that: described waterborne polyurethane resin is the strong cohesive force 170A of Si Taer holding company production and the compound of two kinds of resins of weak cohesive force 170B.
7. preparation method as claimed in claim 6 is characterized in that: the weight ratio of 170A and two kinds of resins of 170B is 70: 30 to 90: 10.
8. preparation method as claimed in claim 1 is characterized in that: described water color ink is watersoluble modified aliphatic polyurethane printing ink.
9. preparation method as claimed in claim 1 is characterized in that: the print wheel in the described printing treatment is the 50-150 order, and the speed of a motor vehicle is 1-10m/min, and the temperature of printing treatment is 100-180 ℃.
10. preparation method as claimed in claim 1 is characterized in that: the temperature of described washing is 50-70 ℃; The time of washing is 25-40 minute.
11. preparation method as claimed in claim 1 is characterized in that: the temperature of described dry rub is 50-80 ℃; The time of described dry rub is 5-20min.
12. the superfine fiber chemical leather that makes as each described preparation method of claim 1～11.
13. a printed material composition is characterized in that: it comprises waterborne polyurethane resin, water and water color ink; The parts by weight of each composition and kind are as claim 1,2,5,6,7 or 8 as described in each.
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| CN103451958A (en) * | 2013-08-27 | 2013-12-18 | 陕西科技大学 | After finishing method for improving compliance of superfine fiber synthetic leather |
| CN103526562A (en) * | 2013-10-22 | 2014-01-22 | 安徽安利合成革股份有限公司 | Non-woven fabric polyurethane sports leisure shoe leather and preparation method thereof |
| CN103741498A (en) * | 2014-01-16 | 2014-04-23 | 钟诗富 | Preparation method of three-dimensional wet-process PU (polyurethane) synthetic leather |
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| CN110656507A (en) * | 2019-10-31 | 2020-01-07 | 佛山市威弘皮革有限公司 | Full-aqueous artificial leather multiple treatment process |
| CN113863015A (en) * | 2021-09-22 | 2021-12-31 | 安安(中国)有限公司 | Production method of erasable microfiber synthetic leather |
| CN114263053A (en) * | 2021-12-29 | 2022-04-01 | 北京光华纺织集团有限公司 | Production process of water-based digital printing PU leather |
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