CN103938460A - Water dyeing method of semi-polyurethane leather - Google Patents
Water dyeing method of semi-polyurethane leather Download PDFInfo
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- CN103938460A CN103938460A CN201310018658.0A CN201310018658A CN103938460A CN 103938460 A CN103938460 A CN 103938460A CN 201310018658 A CN201310018658 A CN 201310018658A CN 103938460 A CN103938460 A CN 103938460A
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- leather
- polyurethane
- semi
- polyurethane leather
- coated
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- 239000004814 polyurethane Substances 0.000 title claims abstract description 42
- 239000010985 leather Substances 0.000 title claims abstract description 40
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000004043 dyeing Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 239000010410 layer Substances 0.000 claims abstract description 18
- 238000005187 foaming Methods 0.000 claims abstract description 12
- 239000002344 surface layer Substances 0.000 claims abstract description 12
- 239000000853 adhesive Substances 0.000 claims abstract description 10
- 230000001070 adhesive effect Effects 0.000 claims abstract description 10
- 239000012790 adhesive layer Substances 0.000 claims abstract description 9
- 238000004381 surface treatment Methods 0.000 claims abstract description 5
- 239000002002 slurry Substances 0.000 claims description 16
- 239000011247 coating layer Substances 0.000 claims description 8
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 8
- 239000004800 polyvinyl chloride Substances 0.000 claims description 8
- 239000006260 foam Substances 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 239000003960 organic solvent Substances 0.000 abstract description 6
- 238000003912 environmental pollution Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 238000001035 drying Methods 0.000 abstract 2
- 238000004513 sizing Methods 0.000 abstract 2
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- 239000002649 leather substitute Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000004049 embossing Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- VQLYBLABXAHUDN-UHFFFAOYSA-N bis(4-fluorophenyl)-methyl-(1,2,4-triazol-1-ylmethyl)silane;methyl n-(1h-benzimidazol-2-yl)carbamate Chemical compound C1=CC=C2NC(NC(=O)OC)=NC2=C1.C=1C=C(F)C=CC=1[Si](C=1C=CC(F)=CC=1)(C)CN1C=NC=N1 VQLYBLABXAHUDN-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- NKDDWNXOKDWJAK-UHFFFAOYSA-N dimethoxymethane Chemical compound COCOC NKDDWNXOKDWJAK-UHFFFAOYSA-N 0.000 description 1
- 239000012636 effector Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
The invention discloses a water dyeing method of semi-polyurethane leather. The water dyeing method of the semi-polyurethane leather comprises the steps that (1) a polyurethane surface layer sizing agents are coated on release paper and then put into a drying oven to be dried; (2) five to ten weight percent of foaming layer sizing agents are coated; (3) an adhesive layer is coated, the thickness of the adhesive layer is 0.05-0.1 mm, and then the adhesive layer is put into the drying oven to be dried; (4) base leather is obtained by stripping and coiling the release paper, surface treatment is carried out, and then a semi-polyurethane leather finished product is obtained. The water dyeing method of the semi-polyurethane leather selects water-borne adhesives, the use quantity of organic solvents in the making process of the semi-polyurethane leather is reduced, and environmental pollution is relieved. The semi-polyurethane leather made through the method is pure white in appearance, good in product performance, good in hand feeling and suitable for being used for making gloves, clothes, cases and the like.
Description
Technical field
The invention belongs to artificial synthetic leather technical field, be specifically related to a kind of water dyeing method of half polyurethane leather.
Background technology
Half polyurethane leather (half PU leather) is the upgrading products of PVC leather, be characterized in that top layer is PU, bottom is PVC, both there is PU and removed from office good feel, outward appearance, ventilative, moisture-inhibiting and surperficial tractable characteristic, there is again durable in use, the cheap advantage of PVC leather, the market competitiveness is strong, has been widely used in fields such as producing case and bag, clothes, footwear, furniture, sports goods, has accounted for 30～40% of dermatine output.
But half PU leather industry is also faced with the severe challenge of environmental pollution.Exhaust emission on half PU leather production line mainly comes from the unordered discharge of the organic solvent in the place's agent of solvent-borne type table, surface layer resin, adhesive, and these solvents have dimethyl formamide (DMF), toluene, ethyl acetate, butyl acetate, butanone and dimethoxym ethane etc.Therefore, artificial leather industry be faced with for a long time that environmental improvement cost is high, serious waste of resources, environmental pollution stern challenge.
At present, in the production method of artificial leather, rubbing method (comprising direct rubbing method and transfer coated method) is the main manufacture methods of artificial leather.In the manufacture process of rubbing method PVC leather, need that solvent-borne type table place resin, solvent-borne type surface layer resin and solvent welding glue, table place resin etc. give that leather adds lustre to, delustring and various effector function, these table place resins, surface layer resin and adhesive glue are taking solvent type PU or acrylic acid as main, organic solvent is inflammable and explosive, smell is large, toxicity is large, both there is potential safety hazard, endangered again worker's physical and mental health.
In addition, the following problem of the current half normal appearance of PU leather product: the problem of (1) aberration, the reason and the foaming layer that produce have relation, as the excess Temperature of baking oven or too low, excess Temperature causes foaming layer too thick, causing foaming layer too thin as temperature is too low, is also the thickness problem that has influence on finished product, also has influence on the depth of color simultaneously; (2) get blister, misoperation just there will be this situation in process of production; (3) there is delamination.
Therefore, along with the raising of people's living standard, people have higher requirement to the ecological property of leather goods, and half traditional PU leather manufacture method cannot meet the process hides requirement of eco-friendly, also cannot meet double PU and remove from office the instructions for use in product appearance and performance.
Summary of the invention
For solving the problems of the technologies described above, the invention provides that a kind of consumption of organic solvent is few, the water dyeing method of environmental friendliness and long-lived a kind of half polyurethane leather.
For achieving the above object, the technical solution used in the present invention is:
A water dyeing method for half polyurethane leather, comprises the steps:
(1) polyurethane surface layer slurry is coated with and is scraped in release liners, coating layer thickness is 0.1～0.3mm; Put into again baking oven dry, first dry 30～60 seconds for 90～100 DEG C, then 120～140 DEG C dry 30～60 seconds;
(2) on the polyurethane surface layer of step (1), be coated with and scrape 5～10%wt foaming layer slurry, coating layer thickness is 0.1～0.3mm, then puts into baking oven with 175～185 DEG C of dry plasticizings 30～60 seconds;
(3) on step (2) foaming layer slurry, be coated with and scrape adhesive layer, bondline thickness is 0.05～0.1mm, then it is dry 2～10 hours with 155～160 DEG C to put into baking oven;
(4) peel off with release liners, rolling obtains bottom leather, then carry out surface treatment and obtain half polyurethane leather finished product.
The foaming layer slurry of above-mentioned steps (2) is foam polyvinyl chloride layer slurry.
For reducing environmental pollution, reduce the consumption of organic solvent, the adhesive that in above-mentioned steps (3), adhesive layer uses is aqueous adhesive polycarbodiimide, poly-ethylenimide or epoxy resin.
Beneficial effect of the present invention: the present invention selects aqueous adhesive, has reduced the consumption of organic solvent in half PU leather preparation, has alleviated environmental pollution; Half PU leather outward appearance prepared by the present invention is pure white, later stage does not need to cover with paint, lacquer, colour wash, etc. embossing, keep synthetic leather lines, after dyeing is fixing, directly do the synthetic leather of finished product, properties of product are good, there is better outward appearance and soft and smooth feel, use for a long time not fugitive color, be suitable for making case and bag, clothes, footwear, furniture, sports goods etc.
Detailed description of the invention
Embodiment 1
A water dyeing method for half polyurethane leather, comprises the steps:
Polyurethane surface layer slurry is coated with and is scraped in release liners, and coating layer thickness is 0.2mm; Put into again baking oven dry, first dry 30 seconds for 100 DEG C, then 130 DEG C dry 30 seconds; On polyurethane surface layer, be coated with and scrape 5%wt foam polyvinyl chloride layer slurry again, coating layer thickness is 0.2mm, then puts into baking oven with 180 DEG C of dry plasticizings 30 seconds; On foaming layer slurry, be coated with and scrape adhesive layer, taking polycarbodiimide as adhesive, sticky platform layer thickness is 0.08mm, puts into baking oven and is dried 4 hours with 155～160 DEG C; Peel off with release liners, rolling obtains bottom leather, more routinely technique embossing, carry out surface treatment, behind table place, rub line, obtain half polyurethane leather finished product after dry through routine.
The half PU leather outward appearance that this method is produced is white, and outward appearance is beautiful, and feel is soft and smooth, and expansion ratio is 2.0, and softness is moderate.
Embodiment 2
A water dyeing method for half polyurethane leather, comprises the steps:
Polyurethane surface layer slurry is coated with and is scraped in release liners, and coating layer thickness is 0.3mm; Put into again baking oven dry, first dry 60 seconds for 100 DEG C, then 130 DEG C dry 30 seconds; On polyurethane surface layer, be coated with and scrape 10%wt foam polyvinyl chloride layer slurry again, coating layer thickness is 0.2mm, then puts into baking oven with 180 DEG C of dry plasticizings 30 seconds; On foaming layer slurry, be coated with and scrape adhesive layer, taking epoxy resin as adhesive, bondline thickness is 0.06mm, puts into baking oven and is dried 8 hours with 155～160 DEG C; Peel off with release liners, rolling obtains bottom leather, more routinely technique embossing, carry out surface treatment, behind table place, rub line, obtain half polyurethane leather finished product after dry through routine.
The half PU leather outward appearance that this method is produced be white, natural light, and coating has good wear-resisting, scratch resistance and antifouling property, and feel is soft and smooth, plentiful abundant.
Claims (3)
1. a water dyeing method for half polyurethane leather, is characterized in that comprising the steps:
(1) polyurethane surface layer slurry is coated with and is scraped in release liners, coating layer thickness is 0.1～0.3mm; Put into again baking oven dry, first dry 30～60 seconds for 90～100 DEG C, then 120～140 DEG C dry 30～60 seconds;
(2) on the polyurethane surface layer of step (1), be coated with and scrape 5～10%wt foaming layer slurry, coating layer thickness is 0.1～0.3mm, then puts into baking oven with 175～185 DEG C of dry plasticizings 30～60 seconds;
(3) on step (2) foaming layer slurry, be coated with and scrape adhesive layer, bondline thickness is 0.05～0.1mm, then it is dry 2～10 hours with 155～160 DEG C to put into baking oven;
(4) peel off with release liners, rolling obtains bottom leather, then carry out surface treatment and obtain half polyurethane leather finished product.
2. the water dyeing method of a kind of half polyurethane leather according to claim 1, is characterized in that: the foaming layer slurry of described step (2) is foam polyvinyl chloride layer slurry.
3. the water dyeing method of a kind of half polyurethane leather according to claim 1, is characterized in that: the adhesive that in described step (3), adhesive layer uses is aqueous adhesive polycarbodiimide, poly-ethylenimide or epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310018658.0A CN103938460A (en) | 2013-01-18 | 2013-01-18 | Water dyeing method of semi-polyurethane leather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310018658.0A CN103938460A (en) | 2013-01-18 | 2013-01-18 | Water dyeing method of semi-polyurethane leather |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103938460A true CN103938460A (en) | 2014-07-23 |
Family
ID=51186318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310018658.0A Pending CN103938460A (en) | 2013-01-18 | 2013-01-18 | Water dyeing method of semi-polyurethane leather |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103938460A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104745743A (en) * | 2015-03-10 | 2015-07-01 | 海宁富邦汽车内饰有限公司 | Method for treating surface of automobile leather |
| CN105348960A (en) * | 2015-11-17 | 2016-02-24 | 广东银洋树脂有限公司 | Environment-friendly coating realizing rapid coating, and preparation and usage methods thereof |
| CN107904975A (en) * | 2017-12-11 | 2018-04-13 | 福建宝利特科技股份有限公司 | One kind inhales line or embossing artificial leather and preparation method thereof |
| CN108049192A (en) * | 2017-12-05 | 2018-05-18 | 福建宝利特科技股份有限公司 | The preparation method of gradient color PU/PVC composite artificial leathers |
| CN108297459A (en) * | 2017-12-29 | 2018-07-20 | 合肥市安山涂层织物有限公司 | A kind of production method of no base fabric artificial leather |
| CN110306352A (en) * | 2019-07-30 | 2019-10-08 | 浙江百得利制革有限公司 | A kind of preparation process of double-face leather clothing leather |
| CN114000362A (en) * | 2021-11-09 | 2022-02-01 | 福建华大利合成革有限公司 | Breathable environment-friendly leather and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3527653A (en) * | 1966-06-18 | 1970-09-08 | Glanzstoff Ag | Production of a microporous artificial leather coating |
| CN1053025C (en) * | 1994-12-30 | 2000-05-31 | 三芳化学工业股份有限公司 | Dry polyurethane synthetic skin with high-solidity, divisible shapes and zero-pollution |
| CN101974142A (en) * | 2010-10-22 | 2011-02-16 | 温州市长丰人造革有限公司 | Environmental-friendly PU (Polyurethane) resin and environmental-friendly PU leather prepared therefrom and method for preparing PU leather |
| CN102433765A (en) * | 2011-11-09 | 2012-05-02 | 四川大学 | Manufacturing method of environment-friendly semi-polyurethane leather |
-
2013
- 2013-01-18 CN CN201310018658.0A patent/CN103938460A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3527653A (en) * | 1966-06-18 | 1970-09-08 | Glanzstoff Ag | Production of a microporous artificial leather coating |
| CN1053025C (en) * | 1994-12-30 | 2000-05-31 | 三芳化学工业股份有限公司 | Dry polyurethane synthetic skin with high-solidity, divisible shapes and zero-pollution |
| CN101974142A (en) * | 2010-10-22 | 2011-02-16 | 温州市长丰人造革有限公司 | Environmental-friendly PU (Polyurethane) resin and environmental-friendly PU leather prepared therefrom and method for preparing PU leather |
| CN102433765A (en) * | 2011-11-09 | 2012-05-02 | 四川大学 | Manufacturing method of environment-friendly semi-polyurethane leather |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104745743A (en) * | 2015-03-10 | 2015-07-01 | 海宁富邦汽车内饰有限公司 | Method for treating surface of automobile leather |
| CN105348960A (en) * | 2015-11-17 | 2016-02-24 | 广东银洋树脂有限公司 | Environment-friendly coating realizing rapid coating, and preparation and usage methods thereof |
| CN108049192A (en) * | 2017-12-05 | 2018-05-18 | 福建宝利特科技股份有限公司 | The preparation method of gradient color PU/PVC composite artificial leathers |
| CN107904975A (en) * | 2017-12-11 | 2018-04-13 | 福建宝利特科技股份有限公司 | One kind inhales line or embossing artificial leather and preparation method thereof |
| CN108297459A (en) * | 2017-12-29 | 2018-07-20 | 合肥市安山涂层织物有限公司 | A kind of production method of no base fabric artificial leather |
| CN110306352A (en) * | 2019-07-30 | 2019-10-08 | 浙江百得利制革有限公司 | A kind of preparation process of double-face leather clothing leather |
| CN114000362A (en) * | 2021-11-09 | 2022-02-01 | 福建华大利合成革有限公司 | Breathable environment-friendly leather and preparation method thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140723 |
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| RJ01 | Rejection of invention patent application after publication |