CN105155294A - Antifouling embossed regenerated-leather synthetic leather and preparation method thereof - Google Patents
Antifouling embossed regenerated-leather synthetic leather and preparation method thereof Download PDFInfo
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- CN105155294A CN105155294A CN201510473388.1A CN201510473388A CN105155294A CN 105155294 A CN105155294 A CN 105155294A CN 201510473388 A CN201510473388 A CN 201510473388A CN 105155294 A CN105155294 A CN 105155294A
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Abstract
The invention provides antifouling embossed regenerated-leather synthetic leather and a preparation method thereof. The preparation method comprises: preparing a regenerated-leather cloth matrix through compounding polyester spun-laced cloth taken as a front side and composite flocked real leather powder as a reverse side; leading the regenerated-leather cloth matrix through impregnation slurry in an impregnation container at a constant speed, and controlling the weight of the regenerated-leather cloth matrix passing through the impregnation container to be increased by 50-150%; scraping impregnation slurry on the front side of the regenerated-leather cloth matrix with a scraper after the regenerated-leather cloth matrix passes through the impregnation container; coating the front side of the regenerated-leather cloth matrix with wet Bass slurry, and putting the obtained cloth matrix in a DMF aqueous solution for coagulation to obtain a wet semi-finished product; abrading redundant impregnation slurry on the reverse side through a leather abrading device, and allowing napping on the reverse side to be reversed napping; and preparing the antifouling embossed regenerated-leather synthetic leather through dry surface fabrication, surface simulation treatment, and rubbing treatment in sequence. A real-leather-imitated product having perfect drapability, softness, and plumpness, and being free of wrinkle is obtained, and the price of the product is far lower than that of real leather.
Description
Technical field
The invention belongs to synthetic leather preparing technical field, be specifically related to a kind of antifouling embossing regenerated bark synthetic leather and preparation method thereof.
Background technology
At present, along with the raising day by day of living standard, the requirement of people to skin class furniture comfort level and aesthetic appearance also improves thereupon.In existing sofa artificial leather market, real leather products is with its sense of perfectly dangling, richness and no wrinkle characteristic, and the comfort level of excellence and the aesthetic appearance of uniqueness are favored by numerous user, but because its production process is subject to many-sided management and control such as ecological, environmental protective, it holds at high price, and hinders its application in ordinary populace crowd.And corium content is relatively high, and the emulation regenerated bark synthetic leather with corium characteristic is subject to liking of users because its cost performance is high.
Summary of the invention
The object of the present invention is to provide a kind of antifouling embossing regenerated bark synthetic leather and preparation method thereof, it not only has corium and perfectly to dangle sense, richness and no wrinkle characteristic, and price is far below corium.
For achieving the above object, present invention employs following technical scheme:
A preparation method for antifouling embossing regenerated bark synthetic leather, comprises the steps:
(1) by entirely washing that spun laced fabric is front, to plant corium powder be that the back side is composited regenerated bark fabricbase to compound;
(2) in impregnating groove, add impregnation dipping sizing agent, then by the regenerated bark fabricbase in (1) at the uniform velocity by the impregnation dipping sizing agent in impregnating groove, and control regenerated bark fabricbase and go out every square metre of weightening finish 50-150% after impregnating groove;
(3) regenerated bark fabricbase scrapes off the impregnation dipping sizing agent on regenerated bark fabricbase front with scraper after going out impregnating groove immediately;
(4) at the front surface coated wet method bass slurry of regenerated bark fabricbase after step (3) process, and be placed in the DMF aqueous solution and condense to obtain wet half-finished product;
(5) by wet half-finished product by Apparatus for skin peeling by worn for dipping material unnecessary for its back side, and this face plucking is become hair down shape;
(6) semi-finished product step (5) prepared are made face, surface simulating process by dry method successively and are rubbed grain processing process and obtain antifouling embossing regenerated bark synthetic leather.
Further scheme, corium mass content > 60% in the regenerated bark fabricbase in described step (1).
Further scheme, described step (2) impregnation dipping sizing agent is dissolved in 150-400 part solvent DMF 1-5 part softener, 1-3 part gas generation agent and 50-150 part polyurethane resin, and add 3-10 part mill base stir after, vacuumize gained.
The viscosity of impregnation dipping sizing agent prepared by described step (1) is 40-150cps, material temperature degree is 25-40 DEG C.
Gap in described step (3) between scraper and regenerated bark fabricbase front is 0-0.2mm, and the angle between scraper plane and regenerated bark cloth base plane is 30 °-90 °.
Wet method bass slurry is dissolved in 150-200 part solvent DMF 1-4 part softener, 0.5-3 part gas generation agent, 20-40 part solid packing and 180-220 part polyurethane resin in described step (4), and add 3-10 part mill base stir after, vacuumize and get final product.
The thickness of described step (4) wet method bass slurry coating is 0.8-1.5 times of regenerated bark fabricbase thickness: the mass fraction of the described DMF aqueous solution is 60-90%; Described pool time is 5-15min, condensation temperature is 20-50 DEG C.
The time interval between described step (3) and step (4) is less than 30 seconds.
In described step (5), Apparatus for skin peeling sand paper model used is 60-150 order, grinding wheel speed 600-1500r/min, driving speed of a motor vehicle 6-15m/min;
The hair down of plucking hair down shape is long is 0.5-3mm.
Another goal of the invention of the present invention is to provide a kind of through the regenerated bark synthetic leather prepared by above-mentioned preparation method.
In the present invention, DMF is a kind of solvent, and its chemical name is N, N '-dimethyl formamide; Described surface simulating treatment process comprises the techniques such as antifouling, embossing, stamp, surface touch process.Described softener, gas generation agent, solid packing, mill base etc. are all the auxiliary agents that this area is commonly used, all can be commercially available.
The viscosity of impregnation dipping sizing agent prepared by the present invention is 40-150cps, material temperature degree is 25-40 DEG C, it act as the adhesive dissolving and plant corium powder face when regenerated bark fabricbase is produced, and in coacervation process, forming how empty filling is filled, increase synthetic leather pliability and pendency are felt.
The time interval in the present invention between step (3) and step (4) must not be greater than 30s, should apply one deck wet method bass slurry immediately thereon after namely scraping off the leaching dipping sizing agent on regenerated bark fabricbase front.Its effect forms miscible layer between the contact surface of impregnation dipping sizing agent and wet method bass slurry, this layer insufficient can form irregular circular hole when condensing due to miscible, and regenerated bark fabricbase back side corium content is higher, density weight overweights front layer of polyurethane, thus increases the pendency effect of synthetic leather;
So the present invention possesses following advantage:
1. the antifouling embossing regenerated bark synthetic leather base fabric used that the present invention produces is regenerated bark fabricbase, and its corium content is high;
2. the present invention is before wet process furnish coating, carry out impregnation impregnation process to regenerated bark fabricbase, it act as the adhesive dissolving and plant corium powder face when regenerated bark fabricbase is produced, and in coacervation process, form how empty filling is filled, increase synthetic leather pliability, from feel aspect closer to corium;
3. the present invention adds gas generation agent in wet method bass slurry, makes Wet agglomeration form micropore, and makes pass cross-direction shrinkage, longitudinal stretching ovalisation pass, to improve hole wall support force, reduces the fold of synthetic leather and improves fold regeneration rate;
4. time difference of applying through impregnation dipping sizing agent and wet method bass slurry due to regenerated bark fabricbase of the present invention is shorter, impregnation dipping sizing agent and wet method bass slurry form miscible layer on the contact surface, this miscible layer insufficient can form irregular circular hole when condensing due to miscible, and regenerated bark fabricbase back side corium content is higher, density weight overweights front layer of polyurethane, thus increases the pendency effect of synthetic leather;
5. after the present invention carries out mill skin wharf's pavement quality by Apparatus for skin peeling to the wet half-finished product back side, becoming mildewed, from back side effect closer to corium of regenerated bark back side pull-out 0.5-3mm;
6. the antifouling embossing regenerated bark synthetic leather produced by the present invention all approaches corium from outward appearance, feel or pendency sense, and price is far below corium.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further described.
In embodiment, softener uses LK-136, LK-156 of Hefei Lan Kai Chemical Co., Ltd. below; Gas generation agent uses HY-601, HY608 of Nanjing, Jinhu County auxiliary reagent factory.Mill base is selected according to need of production.
embodiment 1
A kind of antifouling embossing regenerated bark synthetic leather and preparation method thereof and preparation method thereof, comprises the steps:
(1) 1 part of softener LK-136,1 part of gas generation agent HY-601 and 50 part polyurethane resin are dissolved in 150 parts of solvent N, in N '-dimethyl formamide (hereinafter referred to as DMF), and add 3 parts of mill bases stir after, vacuumize to obtain impregnation dipping sizing agent, for subsequent use;
(2) 1 part of softener LK-156,0.5 part of gas generation agent HY608,20 parts of solid packings and 180 parts of polyurethane resins are dissolved in 150 parts of DMF, and add 3 parts of mill bases stir after, vacuumize to obtain wet method bass slurry, for subsequent use;
(3) impregnation dipping sizing agent obtained in step (1) is placed in impregnating groove, and by entirely washing that spun laced fabric is front, to plant corium powder be that the back side is composited the regenerated bark fabricbase of corium mass content > 60% to compound, at the uniform velocity impregnated in impregnating groove, after control fabricbase goes out impregnating groove, every square metre is increased weight 50%;
(4) scrape off regenerated bark fabricbase front impregnation dipping sizing agent immediately with scraper, scraper and regenerated bark fabricbase frontal clearance are 0mm, and scraper plane and regenerated bark fabricbase Plane Angle are 30 °;
(5) in time the wet process furnish that step (2) configures is coated on the regenerated bark fabricbase front after step (4) process, coating thickness is 0.8 times of regenerated bark fabricbase thickness, and the DMF aqueous solution being placed in 10% condenses 5min, condensation temperature is 20 DEG C, obtained wet half-finished product;
(6) wet half-finished product prepared by step (5) sand paper specification be 60 orders, rotating speed be 600r/min, driving speed of a motor vehicle 6m/min condition under by worn for unnecessary for back side dipping material, and this face plucking is become corium back side hair down shape, plucking length 3mm;
(7) semi-finished product step (6) prepared are made face, surface simulating process by dry method successively and are rubbed the techniques such as line process obtained emulation regenerated bark synthetic leather.
embodiment 2
A kind of antifouling embossing regenerated bark synthetic leather and preparation method thereof, comprises the steps:
(1) 1 part of softener LK-156,1 part of gas generation agent HY-601 and 50 part polyurethane resin are dissolved in 150 parts of DMF, and add 10 parts of mill bases stir after, vacuumize to obtain impregnation dipping sizing agent, for subsequent use;
(2) 4 parts of softener LK-136,3 parts of gas generation agent HY-608,40 parts of solid packings and 220 parts of polyurethane resins are dissolved in 200 parts of DMF, and add 10 parts of mill bases stir after, vacuumize to obtain wet method bass slurry, for subsequent use;
(3) impregnation dipping sizing agent obtained in step (1) is placed in impregnating groove, and by entirely washing that spun laced fabric is front, to plant corium powder be that the back side is composited the regenerated bark fabricbase of corium mass content > 60% to compound, at the uniform velocity impregnated in impregnating groove, after control fabricbase goes out impregnating groove, every square metre is increased weight 150%;
(4) scrape off regenerated bark fabricbase front impregnation dipping sizing agent immediately with scraper, scraper and regenerated bark fabricbase frontal clearance are 0.2mm, and scraper plane and regenerated bark fabricbase Plane Angle are 90 °;
(5) in time the wet process furnish that step (2) configures is coated on the regenerated bark fabricbase front after step (4) process, coating thickness is 1.5 times of regenerated bark fabricbase thickness, and the DMF aqueous solution being placed in 40% condenses 15min, condensation temperature is 50 DEG C, obtained wet half-finished product;
(6) wet half-finished product prepared by step (5) sand paper specification be 150 orders, rotating speed be 1500r/min, driving speed of a motor vehicle 15m/min condition under by worn for unnecessary for back side dipping material, and this face plucking is become corium back side hair down shape, plucking length 0.5mm;
(7) semi-finished product step (6) prepared are made face, surface simulating process by dry method successively and are rubbed the techniques such as line process obtained emulation regenerated bark synthetic leather.
embodiment 3
A kind of antifouling embossing regenerated bark synthetic leather and preparation method thereof, comprises the steps:
(1) 3 parts of softener LK-136,2 parts of gas generation agent HY-608 and 70 part polyurethane resins are dissolved in 300 parts of DMF, and add 5 parts of mill bases stir after, vacuumize to obtain impregnation dipping sizing agent, for subsequent use;
(2) 2 parts of softener LK-156,2 parts of gas generation agent HY-608,35 parts of solid packings and 200 parts of polyurethane resins are dissolved in 180 parts of DMF, and add 8 parts of mill bases stir after, vacuumize to obtain wet method bass slurry, for subsequent use;
(3) impregnation dipping sizing agent obtained in step (1) is placed in impregnating groove, and by entirely washing that spun laced fabric is front, to plant corium powder be that the back side is composited the regenerated bark fabricbase of corium mass content > 60% to compound, at the uniform velocity impregnated in impregnating groove, after control fabricbase goes out impregnating groove, every square metre is increased weight 100%;
(4) scrape off regenerated bark fabricbase front impregnation dipping sizing agent immediately with scraper, scraper and regenerated bark fabricbase frontal clearance are 0.1mm, and scraper plane and regenerated bark fabricbase Plane Angle are 45 °;
(5) in time the wet process furnish that step (2) configures is coated on the regenerated bark fabricbase front after step (4) process, coating thickness is 1.0 times of regenerated bark fabricbase thickness, and the DMF aqueous solution being placed in 30% condenses 10min, condensation temperature is 35 DEG C, obtained wet half-finished product;
(6) wet half-finished product prepared by step (5) sand paper specification be 120 orders, rotating speed be 1200r/min, driving speed of a motor vehicle 12m/min condition under by worn for unnecessary for its back side dipping material, and this face plucking is become corium back side hair down shape, plucking length 2mm;
(7) semi-finished product step (6) prepared are made face, surface simulating process by dry method successively and are rubbed the techniques such as line process obtained emulation regenerated bark synthetic leather.
The present embodiment flesh and blood is not limited in described in above-described embodiment, those of ordinary skill in the art can and any change based on connotation of the present invention or distortion should be known, should protection scope of the present invention be belonged to.
Claims (10)
1. a preparation method for antifouling embossing regenerated bark synthetic leather, is characterized in that: comprise the steps:
(1) by entirely washing that spun laced fabric is front, to plant corium powder be that the back side is composited regenerated bark fabricbase to compound;
(2) in impregnating groove, add impregnation dipping sizing agent, then by the regenerated bark fabricbase in (1) at the uniform velocity by the impregnation dipping sizing agent in impregnating groove, and control regenerated bark fabricbase and go out every square metre of weightening finish 50-150% after impregnating groove;
(3) regenerated bark fabricbase scrapes off the impregnation dipping sizing agent on regenerated bark fabricbase front with scraper after going out impregnating groove immediately;
(4) at the front surface coated wet method bass slurry of regenerated bark fabricbase after step (3) process, and be placed in the DMF aqueous solution and condense to obtain wet half-finished product;
(5) by wet half-finished product by Apparatus for skin peeling by worn for dipping material unnecessary for its back side, and this face plucking is become hair down shape;
(6) semi-finished product step (5) prepared are made face, surface simulating process by dry method successively and are rubbed grain processing process and obtain antifouling embossing regenerated bark synthetic leather.
2. preparation method according to claim 1, is characterized in that: corium mass content > 60% in the regenerated bark fabricbase in described step (1).
3. preparation method according to claim 1, it is characterized in that: described step (2) impregnation dipping sizing agent is dissolved in 150-400 part solvent DMF 1-5 part softener, 1-3 part gas generation agent and 50-150 part polyurethane resin, and add 3-10 part mill base stir after, vacuumize gained.
4. preparation method according to claim 1, is characterized in that: the viscosity of the impregnation dipping sizing agent in described step (2) is 40-150cps, material temperature degree is 25-40 DEG C.
5. preparation method according to claim 1, is characterized in that: the gap in described step (3) between scraper and regenerated bark fabricbase front is 0-0.2mm, and the angle between scraper plane and regenerated bark cloth base plane is 30 °-90 °.
6. preparation method according to claim 1, it is characterized in that: wet method bass slurry is dissolved in 150-200 part solvent DMF 1-4 part softener, 0.5-3 part gas generation agent, 20-40 part solid packing and 180-220 part polyurethane resin in described step (4), and add 3-10 part mill base stir after, vacuumize and get final product.
7. preparation method according to claim 1, is characterized in that: in described step (4), the thickness of wet method bass slurry coating is 0.8-1.5 times of regenerated bark fabricbase thickness: the mass fraction of the described DMF aqueous solution is 60-90%; Described pool time is 5-15min, condensation temperature is 20-50 DEG C.
8. preparation method according to claim 1, is characterized in that: the time interval between described step (3) and step (4) is less than 30 seconds.
9. preparation method according to claim 1, is characterized in that: in described step (5), Apparatus for skin peeling sand paper model used is 60-150 order, grinding wheel speed 600-1500r/min, driving speed of a motor vehicle 6-15m/min;
The hair down of plucking hair down shape is long is 0.5-3mm.
10. the antifouling embossing regenerated bark synthetic leather prepared of the preparation method as described in any one of claim 1-9.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107090721A (en) * | 2017-06-23 | 2017-08-25 | 华伦皮塑（苏州）有限公司 | A kind of preparation method of Yoga mat |
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| JPH05106173A (en) * | 1991-10-11 | 1993-04-27 | Hosokawa Micron Corp | Production of suede-like synthetic leather |
| CN1487142A (en) * | 2002-11-11 | 2004-04-07 | 韩仕银 | Synthetic leather and its making process |
| CN201389997Y (en) * | 2009-03-18 | 2010-01-27 | 义乌市鑫挺人造革有限公司 | Imitated suede |
| CN102561050A (en) * | 2012-01-05 | 2012-07-11 | 无锡双象超纤材料股份有限公司 | Method for producing fiber non-woven fabric superfine fiber synthetic leather |
| CN204059073U (en) * | 2014-08-06 | 2014-12-31 | 安徽安利合成革股份有限公司 | A kind of Ecology Leather of high corium content |
| CN104452322A (en) * | 2014-12-16 | 2015-03-25 | 安徽安利合成革股份有限公司 | Method for preparing weather-resistant hydrolysis-resistant synthetic leather |
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2015
- 2015-08-05 CN CN201510473388.1A patent/CN105155294B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05106173A (en) * | 1991-10-11 | 1993-04-27 | Hosokawa Micron Corp | Production of suede-like synthetic leather |
| CN1487142A (en) * | 2002-11-11 | 2004-04-07 | 韩仕银 | Synthetic leather and its making process |
| CN201389997Y (en) * | 2009-03-18 | 2010-01-27 | 义乌市鑫挺人造革有限公司 | Imitated suede |
| CN102561050A (en) * | 2012-01-05 | 2012-07-11 | 无锡双象超纤材料股份有限公司 | Method for producing fiber non-woven fabric superfine fiber synthetic leather |
| CN204059073U (en) * | 2014-08-06 | 2014-12-31 | 安徽安利合成革股份有限公司 | A kind of Ecology Leather of high corium content |
| CN104452322A (en) * | 2014-12-16 | 2015-03-25 | 安徽安利合成革股份有限公司 | Method for preparing weather-resistant hydrolysis-resistant synthetic leather |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107090721A (en) * | 2017-06-23 | 2017-08-25 | 华伦皮塑（苏州）有限公司 | A kind of preparation method of Yoga mat |
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