CN102619096A - Artificial leather and preparation method thereof - Google Patents
Artificial leather and preparation method thereof Download PDFInfo
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- CN102619096A CN102619096A CN2011100326229A CN201110032622A CN102619096A CN 102619096 A CN102619096 A CN 102619096A CN 2011100326229 A CN2011100326229 A CN 2011100326229A CN 201110032622 A CN201110032622 A CN 201110032622A CN 102619096 A CN102619096 A CN 102619096A
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- layer structure
- dermatine
- polyurethane resin
- floating coat
- substrate layer
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Abstract
A preparation method of artificial leather is provided. The preparation method comprises a surface layer making step and a substrate layer making step to respectively make a surface layer structure and a substrate layer structure, and the artificial leather is formed by combining the surface layer structure and the substrate layer structure through a backing material layer application step, wherein a floating coat composition coating step is enforced in at least one of the surface layer making step and the substrate layer making step to make one or two of the surface layer structure and the substrate layer structure have the floating coat; and the floating coat composition is an aqueous polyurethane resin composition or an oily polyurethane resin composition. The artificial leather prepared through above leather making flow has the qualitative sense and the elasticity of real leather, and the hydrolysis resistance, the peeling strength and surface properties and the like of the artificial leather accord with market requirements.
Description
Technical field
Relevant a kind of dermatine of the present invention and preparation method thereof, this preparation method processes dermatine applicable to aqueous polyurethane resin combination or oiliness polyurethane resin constituent.
Background technology
The production of dermatine in the past, main raw material on a base cloth or release liners, utilizes processing procedure productions such as cohesion, washing and drying with coating machine coating PU resin formula for containing high solvent composition PU resin combination and retarder thinner.Yet, use the manufacturing approach of solvent as the dermatine of PU resin combination, in the processed step of base cloth, can discharge harmful solvent, very big labour and expense be must expend and water quality and problems such as prevention and control of air pollution and solvent recovery processing carried out.And solvent also can residue in base cloth and the dermatine finished product, and its toxicity can work the mischief to the user.The existing statutory regulations forbidding of existing majority state high solvent composition PU resin combination.
From the above, the manufacturing of dermatine still needs a cover to meet environmental protection, and has the new method of excellent characteristic and productivity.
Summary of the invention
Main purpose of the present invention is to propose a kind of process hides flow process of dermatine, and this process hides flow process can be used in aqueous polyurethane resin combination or oiliness polyurethane resin constituent.
Second purpose of the present invention is to obtain one by the prepared dermatine of above-mentioned process hides flow process, and this dermatine has texture and the elastic force property of intending the corium leather, and its hydrolysis, peel strength and surface nature etc. conform in every respect to market demands.
Another purpose of the present invention is to propose a kind of composition of water system polyurethane resin constituent of dermatine.The composition of this constituent does not use the volatility harmful organic solvent, uses constituent of the present invention to manufacture dermatine, promptly exempts problems such as the pollution that rises because of solvent or recycling, for a kind of to environment close and friendly and harmless preparation method.Made dermatine finished product does not have the problem of harmful organic solvent residual, can meet at present and the testing standard of the dermatine no solvent residue of following various countries.
For realizing above-mentioned purpose, the present invention adopts following design:
A kind of preparation method of dermatine, this preparation method comprise superficial layer making step and substrate layer making step, process a surface layer structure and a substrate layer structure respectively; This surface layer structure and this substrate layer structure are executed with an initial bed and are joined step and combine to constitute dermatine; Wherein:
Implement a floating coat constituent coating step at least one step in superficial layer making step and substrate layer making step, make in above-mentioned surface layer structure and the substrate layer structure one or two have floating coat; This floating coat constituent is aqueous polyurethane resin combination or oiliness polyurethane resin constituent.
The preparation method of aforesaid dermatine, wherein, said floating coat constituent is for example one or more in polyurethane resin, acrylic (acrylic), polybutadiene, ethylene-vinyl acetate and the epoxy resin of polyethers or polyester.
The preparation method of aforesaid dermatine, wherein, the build of said floating coat is 0.01 ~ 1.0mm.
A kind of dermatine, this dermatine comprise a surface layer structure and a substrate layer structure, and they combine through an initial bed; Wherein:
In this surface layer structure and this substrate layer structure one or two has floating coat, and this floating coat is aqueous polyurethane resin combination or the formed dry film of oiliness polyurethane resin constituent; This floating coat is the resin bed of essence or the resin bed of foaming.
Aforesaid dermatine, wherein, said surface layer structure comprises a precoat at least, this precoat is aqueous polyurethane resin combination or the formed dry film of oiliness polyurethane resin constituent; Said floating coat is formed at one of them surface of this precoat.
Aforesaid dermatine, wherein, another surface of said precoat has release liners, and this release liners is for rubbing marble paper or plane paper.
Aforesaid dermatine, wherein, another surface of said precoat is provided with embossing.
Aforesaid dermatine, wherein, said substrate layer structure comprises by a kind of formed base material in two layered materials of animal skins, superfine fibre, the substrate of wet type polyurethane resin and the fabric; Said floating coat is formed at a surface of this base material.
Aforesaid dermatine wherein, also has between said substrate layer and the floating coat and bumps the flower layer, and this bumps the flower layer and is aqueous polyurethane resin combination or the formed dry film of oiliness polyurethane resin constituent.
Aforesaid dermatine, wherein, said initial bed is aqueous polyurethane resin combination or the formed dry film of oiliness polyurethane resin constituent.
The invention has the beneficial effects as follows:
The present invention proposes a kind of process hides flow process of dermatine, this process hides flow process can be used in aqueous polyurethane resin combination or oiliness polyurethane resin constituent.By the prepared dermatine of above-mentioned process hides flow process, have texture and the elastic force property of intending the corium leather, its hydrolysis, peel strength and surface nature etc. conform in every respect to market demands.
The invention allows for a kind of composition of water system polyurethane resin constituent of dermatine.The composition of this constituent does not use the volatility harmful organic solvent, uses constituent of the present invention to manufacture dermatine, promptly exempts problems such as the pollution that rises because of solvent or recycling, for a kind of to environment close and friendly and harmless preparation method.Made dermatine finished product does not have the problem of harmful organic solvent residual, can meet at present and the testing standard of the dermatine no solvent residue of following various countries.
Description of drawings
Fig. 1 is the first embodiment generalized section of the artificial leather of the present invention.
Fig. 2 is the second embodiment generalized section of the artificial leather of the present invention.
Fig. 3 is the 3rd embodiment generalized section of the artificial leather of the present invention.
Fig. 4 is the 4th embodiment generalized section of the artificial leather of the present invention.
Fig. 5 is the 5th embodiment generalized section of the artificial leather of the present invention.
Fig. 6 is the 6th embodiment generalized section of the artificial leather of the present invention.
Fig. 7 is the 7th embodiment generalized section of the artificial leather of the present invention.
The specific embodiment
For ease of explanation the present invention represented central idea in foregoing invention content one hurdle, express with specific embodiment at present.Various different objects are to describe in the ratio that is suitable for explaining, size, deflection or displacement among the embodiment, but not draw in the ratio of actual components.And in the following explanation, similar elements is to represent with identical numbering.
The preparation method of dermatine of the present invention comprises superficial layer making step and substrate layer making step; Step is processed the surface layer structure and the substrate layer structure of dermatine according to this, and surface layer structure and substrate layer structure are executed via an initial bed and joined step and combine to constitute complete dermatine.This superficial layer comprises a precoat the most basically, and this substrate layer comprises a base material the most basically.Further, the present invention can implement a floating coat coating step at least one step in superficial layer making step and the substrate layer making step, forms a floating coat thereby on precoat and/or substrate layer, apply again.The constituent of described floating coat comprises aqueous polyurethane resin combination or oiliness polyurethane resin constituent.In embodiments of the present invention, its composition comprises: one or more in polyethers or polyester-type polyurethane resin, acrylic, polybutadiene and the ethylene-vinyl acetate.The floating coat coating step is on precoat of doing and/or substrate layer, to be coated with.The solid content of floating coat constituent (S.C. %) is 10 ~ 60wt%, and viscosity (Vis.) is 200 ~ 100000 cps/25 ℃, soft durometer (100 %M) 10 ~ 150kg/cm
2Applying the back is dry film in 50 ~ 200 ℃, the processing conditions compacted under of 1 ~ 10min; Film and do the thick 0.01 ~ 1.0mm of being.Formed filming can be essence resin bed or foamed resin layer.
Embodiment 1
Generalized section with reference to made dermatine as shown in Figure 1.Said superficial layer making step comprises: coating molding one precoat 12, a floating coat 13 on a release liners 11 form a surface layer structure 20 in view of the above.Said substrate layer making step comprises: coating molding one bumps flower layer 16, one floating coat 15 on a base material 17, forms a substrate layer structure 30 in view of the above.With initial bed 14 surface layer structure 20 and substrate layer structure 30 are combined relatively fixingly with floating coat 13,15, and constitute a complete dermatine.
Embodiment 2
Generalized section with reference to made dermatine as shown in Figure 2.Said superficial layer making step comprises: coating molding one precoat 12 on a release liners 11 forms a surface layer structure 20 in view of the above.Said substrate layer making step comprises: coating molding one bumps flower layer 16, one floating coat 15 on a base material 17, forms a substrate layer structure 30 in view of the above.After the drying, the precoat 12 of surface layer structure 20 is combined to fix with the floating coat 15 of substrate layer structure 30 relatively, and constitute a complete dermatine with initial bed 14.
Embodiment 3
Generalized section with reference to made dermatine as shown in Figure 3.Said superficial layer making step comprises: coating molding one precoat 12, a floating coat 13 on a release liners 11 form a surface layer structure 20 in view of the above.Said substrate layer making step comprises: coating molding one bumps flower layer 16 on a base material 17, forms a substrate layer structure 30 in view of the above.After the drying, combine relatively to fix, and constitute a complete dermatine with the flower layer 16 that bumps of initial bed 14 with the floating coat 13 of surface layer structure 20 and substrate layer structure 30.
Embodiment 4
Generalized section with reference to made dermatine as shown in Figure 4.Said superficial layer making step comprises: coating molding one precoat 12 on a release liners 11 forms a surface layer structure 20 in view of the above.Said substrate layer making step comprises: coating molding one bumps flower layer 16 on a base material 17, forms a substrate layer structure 30 in view of the above.After the drying, combine relatively to fix, and constitute a complete dermatine with the flower layer 16 that bumps of initial bed 14 with the precoat 12 of surface layer structure 20 and substrate layer structure 30.
Embodiment 5
Generalized section with reference to made dermatine as shown in Figure 5.Said superficial layer making step comprises: coating molding one precoat 12, a floating coat 13 on a release liners 11 form a surface layer structure 20 in view of the above.Said substrate layer making step comprises: coating molding one floating coat 15 on a base material 17 forms a substrate layer structure 30 in view of the above.After the drying, the floating coat 13 of surface layer structure 20 is combined to fix with the floating coat 15 of substrate layer structure 30 relatively, and constitute a complete dermatine with initial bed 14.
Embodiment 6
Generalized section with reference to made dermatine as shown in Figure 6.Said superficial layer making step comprises: coating molding one precoat 12 on a release liners 11 forms a surface layer structure 20 in view of the above.Said substrate layer making step comprises: coating molding one floating coat 15 on a base material 17 forms a substrate layer structure 30 in view of the above.After the drying, the precoat 12 of surface layer structure 20 is combined to fix with the floating coat 15 of substrate layer structure 30 relatively, and constitute a complete dermatine with initial bed 14.
Embodiment 7
Generalized section with reference to made dermatine as shown in Figure 7.Said superficial layer making step comprises: coating molding one precoat 12, a floating coat 13 on a release liners 11 form a surface layer structure 20 in view of the above.Said substrate layer making step comprises: prepare a base material 17.After the drying, the floating coat 13 of surface layer structure 20 and base material 17 are combined to fix relatively, and constitute a complete dermatine with initial bed 14.
Below introduce the constituent and the physical characteristic thereof of above-mentioned each layered material:
One, precoat (TOP, Top coat):
Composition: one or more in polyethers or polyester-type polyurethane resin, acrylic, polybutadiene and ethylene-vinyl acetate and the epoxy resin.
Solid content (S.C. %): 10 ~ 50wt%.
Viscosity (Vis.): 100 ~ 50000 cps/25 ℃.
Soft durometer (100%M): 10 ~ 150kg/cm
2
Processing conditions: applying the back is dry film in 50 ~ 200 ℃, the processing conditions compacted under of 1 ~ 10min.
Filming, it is thick to do: 0.01 ~ 1.0mm.
Two, initial bed (BOT, Bottom coat):
Composition: one or more in polyethers or polyester-type polyurethane resin, acrylic, butadiene matter and ethylene-vinyl acetate and the epoxy resin.
Solid content (S.C. %): 15 ~ 80wt%.
Viscosity (Vis.): 200 ~ 100000 cps/25 ℃.
Soft durometer (100%M): 5 ~ 100kg/cm
2
Processing conditions: applying the back is dry film in 50 ~ 200 ℃, the processing conditions compacted under of 1 ~ 10min.
Filming, it is thick to do: 0.01 ~ 1.0mm.
Three, bump flower layer (IMP, Impregnation):
Composition: one or more in polyethers or polyester-type polyurethane resin, acrylic, polybutadiene and the ethylene-vinyl acetate.
Solid content (S.C. %): 5 ~ 60wt%.
Viscosity (Vis.): 50 ~ 50000 cps/25 ℃.
Soft durometer (100%M): 5 ~ 100kg/cm
2
Processing conditions: applying the back is dry film in 30 ~ 150 ℃, the processing conditions compacted under of 1 ~ 10min.
Filming, it is thick to do: 0.01 ~ 1.0mm.
Four, bridging agent (CRO. Crosslinking Agent): (adding) in initial bed
Composition: PIC (polyisocyanate), gather ethylene imine
(Polyaziridine), one or more in polycarbodiimide (polycarbodiimide), epoxy resin (Epoxy) and the melamine (Melamine).
Solid content (S.C. %): 5 ~ 100wt%.
Viscosity (Vis.): 100 ~ 5000 cps/25 ℃.
Addition with respect to initial bed is 1 ~ 30%.
Five, colorant (COL. Color Effect):
Composition: can be with following formula precoat, floating coat, initial bed, bump flower layer compatible a pigment and a dyestuff.Be in polyethers or polyester-type polyurethane resin, acrylic, polybutadiene, ethylene-vinyl acetate and the epoxy resin one or more.
Six, release liners: various level and smooth paper or rub line paper and all can.Plastic cement flat sheet membranes such as PE, PP, PET also can be the materials of plastotype paper.
Seven, base material: two layered materials, superfine fibre, the substrate of wet type polyurethane resin, the fabric that comprise animal (ox, sheep, pig etc.).
If the release liners of the foregoing description 1 to embodiment 7 is rubbed marble paper, then form and rub flower in the surface of precoat.If plane paper then forms the plane in the surface of precoat.And plane paper release after, can carry out embossing processing again in the precoat surface and reach the surface and rub colored effect.
Though the present invention does explanation with most preferred embodiment, those skilled in the art can make various multi-form changes not breaking away under the present invention spirit and the category.The above embodiment that lifts is only in order to explanation the present invention, and is non-in order to limit scope of the present invention.Various modifications or variation that all separated the present invention's spirit is engaged in all belong to claim of the present invention.
Claims (10)
1. the preparation method of a dermatine, this preparation method comprises superficial layer making step and substrate layer making step, processes a surface layer structure and a substrate layer structure respectively; This surface layer structure and this substrate layer structure are executed with an initial bed and are joined step and combine to constitute dermatine; It is characterized in that:
Implement a floating coat constituent coating step at least one step in superficial layer making step and substrate layer making step, make in above-mentioned surface layer structure and the substrate layer structure one or two have floating coat; This floating coat constituent is aqueous polyurethane resin combination or oiliness polyurethane resin constituent.
2. the preparation method of dermatine as claimed in claim 1 is characterized in that, said floating coat constituent is one or more in polyurethane resin, acrylic, polybutadiene, ethylene-vinyl acetate and the epoxy resin.
3. the preparation method of dermatine as claimed in claim 1 is characterized in that, the build of said floating coat is 0.01 ~ 1.0mm.
4. dermatine, this dermatine comprises a surface layer structure and a substrate layer structure, they combine through an initial bed; It is characterized in that:
In this surface layer structure and this substrate layer structure one or two has floating coat, and this floating coat is aqueous polyurethane resin combination or the formed dry film of oiliness polyurethane resin constituent; This floating coat is the resin bed of essence or the resin bed of foaming.
5. dermatine as claimed in claim 4 is characterized in that, said surface layer structure comprises a precoat at least, and this precoat is aqueous polyurethane resin combination or the formed dry film of oiliness polyurethane resin constituent; Said floating coat is formed at one of them surface of this precoat.
6. dermatine as claimed in claim 5 is characterized in that, another surface of said precoat has release liners, and this release liners is for rubbing marble paper or plane paper.
7. dermatine as claimed in claim 5 is characterized in that, another surface of said precoat is provided with embossing.
8. dermatine as claimed in claim 4 is characterized in that, said substrate layer structure comprises by a kind of formed base material in two layered materials of animal skins, superfine fibre, the substrate of wet type polyurethane resin and the fabric; Said floating coat is formed at a surface of this base material.
9. dermatine as claimed in claim 7 is characterized in that, also has between said substrate layer and the floating coat to bump the flower layer, and this bumps the flower layer and is aqueous polyurethane resin combination or the formed dry film of oiliness polyurethane resin constituent.
10. dermatine as claimed in claim 8 is characterized in that, said initial bed is aqueous polyurethane resin combination or the formed dry film of oiliness polyurethane resin constituent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100326229A CN102619096A (en) | 2011-01-30 | 2011-01-30 | Artificial leather and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100326229A CN102619096A (en) | 2011-01-30 | 2011-01-30 | Artificial leather and preparation method thereof |
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| CN102619096A true CN102619096A (en) | 2012-08-01 |
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| CN2011100326229A Pending CN102619096A (en) | 2011-01-30 | 2011-01-30 | Artificial leather and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104562722A (en) * | 2013-10-27 | 2015-04-29 | 江苏国信合成革有限公司 | Water insulation synthetic leather and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003119677A (en) * | 2001-10-11 | 2003-04-23 | Dainippon Ink & Chem Inc | Aqueous resin composition for forming skin layer of fiber laminate and artificial leather using the same |
| CN101469515A (en) * | 2007-12-25 | 2009-07-01 | 宁波布利杰合成革有限公司 | Flame-retardant leather and method of producing the same |
| CN101603275A (en) * | 2009-07-08 | 2009-12-16 | 福建宝利特集团有限公司 | A kind of printed patterns PU/PVC dry method artificial leather manufacture method and PU/PVC artificial leather |
| CN102102301A (en) * | 2009-12-18 | 2011-06-22 | 上海华峰超纤材料股份有限公司 | Superfine fiber leather and preparation method thereof |
-
2011
- 2011-01-30 CN CN2011100326229A patent/CN102619096A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003119677A (en) * | 2001-10-11 | 2003-04-23 | Dainippon Ink & Chem Inc | Aqueous resin composition for forming skin layer of fiber laminate and artificial leather using the same |
| CN101469515A (en) * | 2007-12-25 | 2009-07-01 | 宁波布利杰合成革有限公司 | Flame-retardant leather and method of producing the same |
| CN101603275A (en) * | 2009-07-08 | 2009-12-16 | 福建宝利特集团有限公司 | A kind of printed patterns PU/PVC dry method artificial leather manufacture method and PU/PVC artificial leather |
| CN102102301A (en) * | 2009-12-18 | 2011-06-22 | 上海华峰超纤材料股份有限公司 | Superfine fiber leather and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104562722A (en) * | 2013-10-27 | 2015-04-29 | 江苏国信合成革有限公司 | Water insulation synthetic leather and preparation method thereof |
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Application publication date: 20120801 |