CN102634991A - Novel double-faced polyurethane artificial leather and integrated-forming manufacturing process thereof - Google Patents
Novel double-faced polyurethane artificial leather and integrated-forming manufacturing process thereof Download PDFInfo
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- CN102634991A CN102634991A CN201210097344XA CN201210097344A CN102634991A CN 102634991 A CN102634991 A CN 102634991A CN 201210097344X A CN201210097344X A CN 201210097344XA CN 201210097344 A CN201210097344 A CN 201210097344A CN 102634991 A CN102634991 A CN 102634991A
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Abstract
The invention discloses novel double-faced polyurethane artificial leather and an integrated-forming manufacturing process thereof. The double-faced polyurethane artificial leather is provided with an upper face layer and a lower face layer. Single-face semi-finished products are prepared and then are pressed to obtain the double-faced polyurethane artificial leather. As the double-faced polyurethane artificial leather is provided with the two face layers, the application range is wider, the physical property can be high, the third dimension of patterns is high, the decoration effect is better, and the service life is prolonged greatly. As the double-faced polyurethane artificial leather is formed integrally, the layers of the leather are pressed more firmly, the physical property can be high, the leather is not easy to be damaged, and thus the service life of the leather is prolonged greatly. According to the process disclosed by the invention, organic solvent and alkali liquor are not needed, and three wastes (waste water, waste gas and waste residues) are almost not generated, so that the influence on the environment is small. According to the process disclosed by the invention, the energy consumption is low, the production period is short, the production cost can be reduced effectively, the manufacturing process of the conventional polyurethane artificial leather is overturned completely, and thus the process is more convenient for promotion and application and for benefiting the society.
Description
Technical field
The present invention relates to a kind of Novel Human fabricate-leather, particularly a kind of real environmental protection of sandwich construction is clean, two-sided polyurethane artificial leather.The invention still further relates to a kind of production technology of novel two-sided polyurethane artificial leather.
Background technology
Along with the conversion of natural conditions and the enhancing of animal protection consciousness, natural leather source and use all more and more are restricted, and artificial leather is as the substitute of natural leather, and its scope of application is increasing.Relevant data shows that the aggregate demand of China's synthetic leather surpasses 800,000,000 square metres/year, and ascendant trend is obvious.
The bottom of ordinary people's fabricate-leather (base material) is generally cloth or synthetic fiber layer, is the double-decker of polyurethane glue-line and base material, and practicality and texture all can not show a candle to natural leather, is lower than natural leather service life equally.
The progressively raising of Along with people's living standard, high-performance, demand high-quality, the environment-protecting clean synthetic leather also increase thereupon.Rough estimates, the demand of high-quality artificial leather are up to 200,000,000 square metres/year, and ascendant trend is apparently higher than ordinary people's fabricate-leather.
Ultra fine leather is the abbreviation of superfine fibre PU synthetic leather; Being the superfine fibre short fiber processes the nonwoven fabric of three-dimensional structure network through combing acupuncture, passes through wet processes again, the impregnation of PU resin; The alkali decrement; Technologies such as polishing dyeing and finishing are finally processed superfine fiber leather, but energy consumption is high, cost is high, price is high, popularizes difficult.Though ordinary people's fabricate-leather outward appearance is beautiful, to arrange well, price is lower, and is not wear-resisting, is prone to break, and energy consumption is high, toxic, and market will be eliminated; Though ultra fine performance has much lifting than the performance of ordinary people's fabricate-leather, even exceeds natural leather,, it still is merely double-layer structure, and range of application is still limited.
Existing ultra fine leather preparation method obtains through prepared such as alkali decrement or toluene (solvent) decrements, and the feel and the back side of product are effective, but its complex process, and also serious to the pollution of environment.Alkali that consumes in the preparation process and organic solvent etc. are difficult to recycle, and environmental pollution has considerable influence, and the general trend of events also necessity is improved.
Summary of the invention
The object of the present invention is to provide a kind of novel two-sided polyurethane artificial leather.
Another object of the present invention is to provide the technology of the two-sided polyurethane artificial leather of a kind of one-body molded manufactured.
The technical scheme that the present invention taked is:
A kind of novel two-sided polyurethane artificial leather comprises fibrage and surface layer, and said artificial leather has a upper layer and a following surface layer, and at least one intermediate layer.
As further improvement of the present invention, at least one in intermediate layer and/or the surface layer is foaming layer.
As further improvement of the present invention, the intermediate layer is PU layer or fibrage.
Preferably, novel two-sided artificial leather thickness of the present invention is 0.05mm～100mm.
A kind of manufacturing technique of artificial leather comprises the steps:
1) release layer is provided, at the surface applied urethane raw surface layer of release layer;
2) heating makes the glued membrane that the pre-polymerization of urethane raw surface layer becomes to have viscosity;
3) further heating makes the slaking of surface layer urethane raw, obtains single face semi-finished product artificial leather;
4) release layer is provided, at the surface applied urethane raw surface layer of release layer;
5) heating makes the glued membrane that the pre-polymerization of urethane raw surface layer becomes to have viscosity, and the single face semi-finished product artificial leather that makes is pressed together on the glued membrane, obtains two-sided semi-finished product artificial leather;
6) further heat two-sided semi-finished product artificial leather the urethane raw polymerization is done admittedly, obtain having the artificial leather of two surface layers;
Wherein, the urethane raw of said urethane raw for foaming or not foam.
Further; After the pre-polymerization of urethane raw surface layer becomes to have the glued membrane of viscosity; Pressing intermediate layer on glued membrane; On the intermediate layer, apply the intermediate layer urethane raw afterwards, heating afterwards makes the intermediate layer glued membrane that intermediate layer urethane raw pre-polymerization becomes to have viscosity, on the glued membrane of intermediate layer, continues to apply another intermediate layer urethane raw pre-polymerization once more;
Or on glued membrane pressing intermediate layer or single face semi-finished product artificial leather;
Further prepare 3 layers or above double-face person's fabricate-leather;
Wherein, the urethane raw of said intermediate layer urethane raw for foaming or not foaming, each intermediate layer urethane raw is identical or different.
Further, add thermal maturation, before or after the rolling, can the heat pressurization make the artificial leather surface layer have embossing at the surface layer urethane raw.
Further, have the die line on the release layer.The degree of depth of die line is between 0.1～20mm.
During material loading, use gas can atomize sprinkler irrigation method or knife coating polyurethane coating raw material.
The invention has the beneficial effects as follows:
Novel two-sided polyurethane artificial leather of the present invention has two superficial layers, and range of application is wider, and rerum natura can be high, and decorative effect is better.Simultaneously, also improve the service life of polyurethane artificial leather of the present invention greatly.
It is one-body molded that the inventive method adopts, more firm between each layer of product that obtains, and rerum natura can be high, cracky not, and decorative pattern is more clear, and image stereo concave-convex sense height is more elegant in appearance, has prolonged the service life of product greatly.The inventive method need not with an organic solvent, also need not use alkali lye simultaneously, can not produce the three wastes basically, and is little to the influence of environment.The energy consumption of the inventive method is low, and is with short production cycle, can effectively reduce production costs, and overturns the manufacturing technique of conventional urethane artificial leather fully, more helps applying, and benefits the society.
Description of drawings
Fig. 1 and Fig. 2 are the structural representations of inventor's fabricate-leather.
The specific embodiment
See figures.1.and.2, a kind of novel two-sided polyurethane artificial leather has a upper layer 1 and a following surface layer.
As further improvement of the present invention, be provided with at least one intermediate layer 2 between upper layer 1 and a following surface layer 3.
As further improvement of the present invention, intermediate layer 2 and upper layer 1, with and/or intermediate layer 2 and following surface layer 3 between be provided with at least one second intermediate layer 4.
As further improvement of the present invention, the intermediate layer is PU layer or fibrage.
The structure of typical novel two-sided polyurethane artificial leather is followed successively by from top to bottom:
(1) upper layer that does not foam, foamed interlayer, median fiber layer, foamed interlayer, foaming surface layer down;
(2) upper layer that does not foam, median fiber layer, the following surface layer that does not foam;
(3) upper layer, median fiber layer of foaming, the following surface layer that do not foam;
(4) second intermediate layer of upper layer, the first median fiber layer of foaming, first intermediate layer of not foaming, median fiber layer, foaming, the second median fiber layer, the following surface layer that do not foam.
Preferably, novel two-sided artificial leather thickness of the present invention is 0.05mm～100mm.
A kind of manufacturing technique of artificial leather comprises the steps:
1) release layer is provided, at a surface applied urethane raw surface layer of release layer;
2) heating makes the glued membrane that the pre-polymerization of urethane raw surface layer becomes to have viscosity;
3) obtain single face semi-finished product artificial leather;
4) release layer is provided, at a surface applied urethane raw surface layer of release layer;
5) heating makes the glued membrane that the pre-polymerization of urethane raw surface layer becomes to have viscosity, and the single face semi-finished product artificial leather that makes is pressed together on the glued membrane, obtains two-sided semi-finished product artificial leather;
6) further heat two-sided semi-finished product artificial leather the urethane raw polymerization is done admittedly, obtain having the artificial leather of at least two surface layers;
Wherein, the urethane raw of said urethane raw for foaming or not foam.
Further, its manufacturing technique comprises the steps:
1) release layer is provided, at a surface applied urethane raw surface layer of release layer;
2) heating makes the glued membrane that the pre-polymerization of urethane raw surface layer becomes to have viscosity, and the median fiber lamination is combined on the glued membrane;
3) further heating makes the slaking of surface layer urethane raw, obtains single face semi-finished product artificial leather;
4) release layer is provided, at a surface applied urethane raw surface layer of release layer;
5) heating makes the glued membrane that the pre-polymerization of urethane raw surface layer becomes to have viscosity, and the single face semi-finished product artificial leather that makes is pressed together on the glued membrane, obtains two-sided semi-finished product artificial leather;
6) further heat two-sided semi-finished product artificial leather the urethane raw polymerization is done admittedly, obtain having the artificial leather of at least two surface layers and a median fiber layer;
Wherein, the urethane raw of said urethane raw for foaming or not foam.
Further; After the pre-polymerization of urethane raw surface layer becomes to have the glued membrane of viscosity; Pressing intermediate layer on glued membrane; On the intermediate layer, apply the intermediate layer urethane raw afterwards, heating afterwards makes the intermediate layer glued membrane that intermediate layer urethane raw pre-polymerization becomes to have viscosity, on the glued membrane of intermediate layer, continues to apply another intermediate layer urethane raw pre-polymerization once more;
Or on glued membrane pressing intermediate layer or single face semi-finished product artificial leather;
Further prepare 3 layers or above double-face person's fabricate-leather;
Wherein, the urethane raw of said intermediate layer urethane raw for foaming or not foaming, each intermediate layer urethane raw is identical or different.
Further, add thermal maturation, before or after the rolling, can the heat pressurization make the artificial leather surface layer have decorative pattern at each layer urethane raw.
Further, have the die line on the release layer.The degree of depth of die line is between 0.1～20mm.Through the die line is set on release layer, can make the surface layer urethane raw when pre-polymerization, just form high texture, the superficial makings of the artificial leather that makes like this is higher, and it is more stable to suppress the texture that obtains, and third dimension is more arranged.
During material loading, use perfusion, spraying process, knife coating polyurethane coating raw material.Can select according to the thickness of required layer.The centre is coated with thick, and the urethane raw that needs is many, then can adopt perfusion or knife coating to apply.Thinner like layer, then can adopt modes such as spraying to apply.
The urethane raw that uses among the present invention is solvent-free urethane raw, can not produce poisonous and hazardous organic solvent so in process of production, has also significantly reduced dry cost, more environmental protection and energy saving simultaneously.
Claims (10)
1. novel two-sided polyurethane artificial leather, it is characterized in that: said artificial leather has a upper layer and a following surface layer.
2. a kind of novel two-sided polyurethane artificial leather according to claim 1 is characterized in that: be provided with at least one intermediate layer between upper layer and the following surface layer.
3. a kind of novel two-sided polyurethane artificial leather according to claim 1 is characterized in that: at least one in intermediate layer and/or the surface layer is foaming layer.
4. a kind of novel two-sided polyurethane artificial leather according to claim 1 and 2 is characterized in that: said artificial leather thickness is 0.05mm～100mm.
5. the manufacturing technique of an artificial leather comprises the steps:
1) release layer is provided, at the surface applied urethane raw surface layer of release layer;
2) heating makes the glued membrane that the pre-polymerization of urethane raw surface layer becomes to have viscosity;
3) further heating makes the slaking of surface layer urethane raw, obtains single face semi-finished product artificial leather;
4) release layer is provided, at the surface applied urethane raw surface layer of release layer;
5) heating makes the glued membrane that the pre-polymerization of urethane raw surface layer becomes to have viscosity, and the single face semi-finished product artificial leather that makes is pressed together on the glued membrane, obtains two-sided semi-finished product artificial leather;
6) further heating makes two-sided semi-finished product artificial leather that the urethane raw polymerization is done admittedly, obtains having the artificial leather of two surface layers;
Wherein, the urethane raw of said urethane raw for foaming or not foam.
6. the manufacturing technique of a kind of artificial leather according to claim 5; It is characterized in that: after the pre-polymerization of urethane raw surface layer becomes to have the glued membrane of viscosity; Pressing intermediate layer on glued membrane; On the intermediate layer, apply the intermediate layer urethane raw afterwards, heating afterwards makes the intermediate layer glued membrane that intermediate layer urethane raw pre-polymerization becomes to have viscosity, on the glued membrane of intermediate layer, continues to apply another intermediate layer urethane raw pre-polymerization once more;
Or on glued membrane pressing intermediate layer or single face semi-finished product artificial leather;
Further prepare 3 layers or above double-face person's fabricate-leather;
Wherein, the urethane raw of said intermediate layer urethane raw for foaming or not foaming, each intermediate layer urethane raw is identical or different.
7. according to the manufacturing technique of claim 5 or 6 described a kind of artificial leathers, it is characterized in that: after the surface layer urethane raw adds thermal maturation, can the heat pressurization make the artificial leather surface layer have decorative pattern.
8. according to the manufacturing technique of claim 5 or 6 described a kind of artificial leathers, it is characterized in that: release layer is provided with the die line.
9. the manufacturing technique of a kind of artificial leather according to claim 8, it is characterized in that: the degree of depth of die line is between 0.1～20mm.
10. according to the manufacturing technique of claim 5 or 6 described a kind of artificial leathers, it is characterized in that: use gas can atomize sprinkler irrigation method or knife coating polyurethane coating raw material.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210097344XA CN102634991A (en) | 2012-04-05 | 2012-04-05 | Novel double-faced polyurethane artificial leather and integrated-forming manufacturing process thereof |
| TW102111432A TW201344006A (en) | 2012-04-05 | 2013-03-29 | Double sided polyurethane artificial leather and integrated molding manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210097344XA CN102634991A (en) | 2012-04-05 | 2012-04-05 | Novel double-faced polyurethane artificial leather and integrated-forming manufacturing process thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN102634991A true CN102634991A (en) | 2012-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201210097344XA Pending CN102634991A (en) | 2012-04-05 | 2012-04-05 | Novel double-faced polyurethane artificial leather and integrated-forming manufacturing process thereof |
Country Status (2)
| Country | Link |
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| CN (1) | CN102634991A (en) |
| TW (1) | TW201344006A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105256600A (en) * | 2015-10-27 | 2016-01-20 | 四川大学 | Waterborne superfine fiber synthetic leather with two-sided lines and preparation method thereof |
| CN106758274A (en) * | 2016-12-22 | 2017-05-31 | 福建宝利特科技股份有限公司 | The preparation method of two-sided artificial leather and two-sided artificial leather |
| CN109137551A (en) * | 2018-09-21 | 2019-01-04 | 浙江禾欣新材料有限公司 | A kind of high antifungal gene polyurethane leather of two-sided foaming |
| CN109468853A (en) * | 2018-09-21 | 2019-03-15 | 浙江禾欣新材料有限公司 | A kind of preparation method of the high antifungal gene polyurethane leather of two-sided foaming |
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| CN2923786Y (en) * | 2006-05-13 | 2007-07-18 | 钟安心 | Novel artificial leather |
| CN101575809A (en) * | 2009-06-01 | 2009-11-11 | 泉州万华世旺超纤有限责任公司 | Superfine fiber mirror crystal leather preparation method |
| CN101666043A (en) * | 2009-09-15 | 2010-03-10 | 烟台万华超纤股份有限公司 | Waterborne polyurethane coating transfer synthetic leather and manufacturing method |
| CN202543699U (en) * | 2012-04-05 | 2012-11-21 | 佛山市高明尚昂科技有限公司 | Novel double-sided artificial polyurethane leather |
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2012
- 2012-04-05 CN CN201210097344XA patent/CN102634991A/en active Pending
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2013
- 2013-03-29 TW TW102111432A patent/TW201344006A/en unknown
Patent Citations (4)
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| CN2923786Y (en) * | 2006-05-13 | 2007-07-18 | 钟安心 | Novel artificial leather |
| CN101575809A (en) * | 2009-06-01 | 2009-11-11 | 泉州万华世旺超纤有限责任公司 | Superfine fiber mirror crystal leather preparation method |
| CN101666043A (en) * | 2009-09-15 | 2010-03-10 | 烟台万华超纤股份有限公司 | Waterborne polyurethane coating transfer synthetic leather and manufacturing method |
| CN202543699U (en) * | 2012-04-05 | 2012-11-21 | 佛山市高明尚昂科技有限公司 | Novel double-sided artificial polyurethane leather |
Non-Patent Citations (1)
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| 王中明: "无溶剂聚氨酯人造革", 《塑料工业》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105256600A (en) * | 2015-10-27 | 2016-01-20 | 四川大学 | Waterborne superfine fiber synthetic leather with two-sided lines and preparation method thereof |
| CN106758274A (en) * | 2016-12-22 | 2017-05-31 | 福建宝利特科技股份有限公司 | The preparation method of two-sided artificial leather and two-sided artificial leather |
| CN109137551A (en) * | 2018-09-21 | 2019-01-04 | 浙江禾欣新材料有限公司 | A kind of high antifungal gene polyurethane leather of two-sided foaming |
| CN109468853A (en) * | 2018-09-21 | 2019-03-15 | 浙江禾欣新材料有限公司 | A kind of preparation method of the high antifungal gene polyurethane leather of two-sided foaming |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201344006A (en) | 2013-11-01 |
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Application publication date: 20120815 |