CN204701229U - A kind of decoration composite sheet structures - Google Patents
A kind of decoration composite sheet structures Download PDFInfo
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- CN204701229U CN204701229U CN201520022411.0U CN201520022411U CN204701229U CN 204701229 U CN204701229 U CN 204701229U CN 201520022411 U CN201520022411 U CN 201520022411U CN 204701229 U CN204701229 U CN 204701229U
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Abstract
The utility model discloses that a kind of to decorate with PET/PVC be the composite sheet structures of material of main part, described structure comprises priming coat (3), the laminated polyester film (2) on described priming coat (3) and the cementation zone (1) on described laminated polyester film (2) on the adhesion promoting layer (5) in PVC sheet (6), described PVC sheet (6), the hot melt adhesive layer (4) on described adhesion promoting layer (5), described melten gel layer (4).Can not there is thermal deformation in PVC sheet disclosed in the utility model, after overlay film, pet sheet face hardened layer can make PVC sheet case hardness reach more than 2H, and surface is brighter; Can ultraviolet be absorbed, reduce the light aging speed of PVC sheet, improve the weatherability of polyvinyl chloride resin, extend its service life; The Small molecular auxiliary agents such as the inner plasticizer of PVC sheet can be intercepted to surface migration, reduce the harm to human body, significantly can also improve tear resistance and the toughness of PVC sheet, improve the mechanical strength of PVC sheet.
Description
Technical field
The utility model relates to home appliance panel, furniture panel and architectural decoration material field, and particularly a kind of to decorate with PET/PVC be the composite sheet structures of material of main part.
Background technology
Polyvinyl chloride (PVC) is one of five large general-purpose plastics, and its output is only second to polyethylene (PE) and polypropylene (PP).Polyvinyl chloride resin is white or pale yellow powder, and have the performances such as excellent fire-retardant, insulation, resistance to chemical attack, it is cheap, is convenient to machine-shaping, is widely used in the fields such as building materials, light industry, agricultural.
Polyvinyl chloride resin mixes according to a certain percentage with the processing aid such as plasticizer, stabilizing agent, can be rolled into the PVC sheet of various thickness specification, for packaging and ornament materials.PVC is polar material, and the inorganic fillers such as pigment are scattered in PVC matrix, can allocate the PVC sheet preparing different colours.In addition, PVC sheet surface polarity is comparatively large, is conducive to ink attachment, can be had the PVC sheet of various pattern, impel it to have the wide market demand in architectural decoration material field by surface printing preparation.For North America market, the PVC consumption of building aspect accounts for more than 75% of total amount, and domestic application accounts for about 65% of total demand in the PVC in building decoration field, and visible polyvinyl chloride resin is in the critical role in building decoration field.
But polyvinyl chloride resin self is to the less stable of light, heat.The heat distortion temperature of polyvinyl chloride resin is at about 85 DEG C, along with the increase of the processing aids such as plasticizer, heat distortion temperature reduces further, PVC sheet is forced easily thermal deformation to occur, poor dimensional stability, and when not heat stabilizers, start during polyvinyl chloride 100 DEG C to decompose, more than 130 DEG C are decomposed faster.Ultraviolet in sunlight and oxygen can make PVC that photooxidation decomposition occurs, and the flexibility of polyvinyl chloride resin is declined, and finally flavescence, embrittlement, cause the weatherability of PVC product poor.
In PVC sheet, the addition of the Small molecular auxiliary agent such as plasticizer is usually at 30%-70%.Although these auxiliary agents are conducive to the machine-shaping of polyvinyl chloride resin, but result in the significantly decline of polyvinyl chloride resin self mechanical property, especially the hot strength of PVC sheet and tear resistance decline to a great extent.The Small molecular such as plasticizer, heat stabilizer auxiliary agent can migrate to PVC product surface gradually along with the time, harm humans healthy, and the harmful substance in the ink printed layer of PVC surface also exists threat to human body.At present, the common method improving these shortcomings is to intercept Small molecular migration at PVC surface compound one deck polyester film.Because PVC heat distortion temperature is lower, general pre-coating film can cause PVC product to deform at coating process, seldom adopts.But adopt the mode of dry type compound to carry out overlay film, a large amount of solvent can be produced, contaminated environment.
Above shortcoming all strongly limit PVC sheet at home appliance panel, the range of application in furniture panel and building decoration field.Along with growth in the living standard, people for building and ornament materials diversity and functionally also been proposed higher requirement.Such as, the household electrical appliances of high gloss and furniture panel, the resistance to ground panel that scratches in surface and decorative wall paper, the property requirements such as the better outdoor decoration material of weatherability.Therefore, be badly in need of a kind of novel PVC composite sheet, improve PVC sheet self be heated yielding, tear resistance is poor, surface is not resistance to be scratched, weatherability difference and have the defects such as Small molecular migration.
Utility model content
The purpose of this utility model is the deficiency overcoming the existence of existing PVC sheet ornament materials, by PET pre-coating film and the PVC sheet hot pressing compound of hardening, prepare that a kind of to decorate with PET/PVC be the composite sheet of material of main part, improve PVC sheet self be heated yielding, tear resistance is poor, surface is not resistance to be scratched, weatherability difference and have the defects such as Small molecular migration, thus expansion polyvinyl chloride resin is at home appliance panel, the range of application in furniture panel and building decoration field.
The utility model discloses that a kind of to decorate with PET/PVC be the composite sheet structures of material of main part, described structure comprises priming coat (3), the laminated polyester film (2) on described priming coat (3) and the cementation zone (1) on described laminated polyester film (2) on the adhesion promoting layer (5) in PVC sheet (6), described PVC sheet (6), the hot melt adhesive layer (4) on described adhesion promoting layer (5), described melten gel layer (4).
Further, described cementation zone (1) is UV light-cured resin coating, and its case hardness reaches more than 2H, thickness 5-15 μm.
Further, described laminated polyester film (2) is biaxially oriented polyester film (BOPET) or polyester film (PETG), and its thickness is 25-300 μm.
Further, described priming coat (3) is water miscible polymeric base coat agent, its thickness 0.01-0.03 μm.
Further, described hot melt adhesive layer (4) is based on the melt viscosity resin of the ethylene-vinyl acetate copolymer of low melting point (EVA), its thickness 15-50 μm.
Further, described PVC sheet (6) is that surface printing has decorative pattern or self fills the PVC sheet of different pigment, its thickness 150-500 μm.
The remarkable result of the utility model and existing PVC sheet ornament materials is:
PET pre-coating film described in the utility model and PVC sheet combination process are low temperature and pressure compound, combined temp 80-90 DEG C, and PVC sheet thermal deformation can not occur, and after overlay film, pet sheet face hardened layer can make PVC sheet case hardness reach more than 2H, and surface is brighter;
Pre-coating film hot melt adhesive layer is added with ultraviolet absorber, can absorb ultraviolet, reduces the light aging speed of PVC sheet, improves the weatherability of polyvinyl chloride resin, extends its service life;
PET pre-coating film has good barrier property and mechanical strength, can intercept the Small molecular auxiliary agents such as the inner plasticizer of PVC sheet on the one hand to surface migration, reduce the harm to human body; On the other hand, PET pre-coating film significantly can improve tear resistance and the toughness of PVC sheet, improves the mechanical strength of PVC sheet.
Accompanying drawing explanation
A kind of cross-sectional structure schematic diagram decorated by PET/PVC composite sheet structures of Fig. 1.
In figure: 1. cementation zone, 2. laminated polyester film, 3. priming coat, 4. hot melt adhesive layer, 5. adhesion promoting layer, 6.PVC sheet material.
Detailed description of the invention
Elaborate below in conjunction with the detailed description of the invention of accompanying drawing to the decoration composite sheet structures that the utility model provides and preparation method thereof, and be not used to limit scope of the present utility model.
The utility model discloses and a kind ofly decorate with PET/PVC to be the composite sheet structures of material of main part, to be applied to home appliance panel, furniture panel and architectural decoration material field.As shown in Figure 1, this composite sheet primary structure comprises priming coat (3), the laminated polyester film (2) on priming coat (3) and the cementation zone (1) on laminated polyester film (2) on the adhesion promoting layer (5) in PVC sheet (6), PVC sheet (6), the hot melt adhesive layer (4) on adhesion promoting layer (5), melten gel layer (4).Wherein, cementation zone (1) is UV light-cured resin coating, and its case hardness reaches more than 2H, thickness 5-15 μm; Laminated polyester film (2) is biaxially oriented polyester film (BOPET) or polyester film (PETG), and its thickness is 25-300 μm; Priming coat (3) is water miscible polymeric base coat agent, its thickness 0.01-0.03 μm; Hot melt adhesive layer (4) is based on the melt viscosity resin of the ethylene-vinyl acetate copolymer of low melting point (EVA), its thickness 15-50 μm; Adhesion promoting layer (5) is polyurethanes or acrylic polymer coating, its thickness 0.2-0.8 μm.PVC sheet (6) is that surface printing has decorative pattern or self fills the PVC sheet of different pigment, its thickness 150-500 μm.
Preparation method and the flow process of this composite sheet are followed successively by: the tackified finish → polyester lamination film of the preparation → polyester lamination film of polyester film cure process → polyester lamination film and PVC sheet hot pressing compound.Idiographic flow is as follows:
1. polyester film cure process
Described laminated polyester film (2) is biaxially oriented polyester film (BOPET), its thickness 25-150 μm, is prepared or purchased from polyester film producers such as Tianjin ten thousand China, Foshan Du Ponts by bidirectional stretching production line.Described cementation zone (1) is UV light-cured resin coating, and its case hardness reaches more than 2H, thickness 5-15 μm.Composition and ratio is: acrylate monomer 75%-85%, reactive diluent 5%-10%, light trigger 5%-8%, other auxiliary agent 1%-2% (comprising levelling agent, defoamer and wetting agent etc.).First, carried out unreeling and flattening completely at UV coating line by polyester film base material, baking oven rises to design temperature (60-80 DEG C), ensures coating quality; Secondly, acrylate monomer, reactive diluent, light trigger and other auxiliary agent are mixed according to above-mentioned quality proportioning, and is transferred in the glue groove of UV coating line; Finally, turn on UV lamp, the full width coating of intaglio plate is carried out and rolling to polyester film, thus obtains the polyester film with hardened layer.The thickness of hardened layer is mainly through the ink cell shape of applicator roll and the degree of depth, and the solid content of UV resin controls.
2. the preparation of polyester lamination film
Pre-coating film primarily of base material, priming coat and glue-line three part composition.The base material of pre-coating film described in the utility model is sclerosis polyester film, comprises cementation zone (1) and laminated polyester film (2); Described priming coat (3) is water-soluble polymer silane coupling agent, mainly comprises polymine (PEI) and polyacrylic two kinds of water-soluble polymers, and it dries thickness 0.01-0.03 μm, and coating weight in wet base is 1.0-2.5g/ ㎡.Described hot melt adhesive layer (4) is based on the melt viscosity resin of the ethylene-vinyl acetate copolymer of low melting point (EVA), its thickness 15-50 μm.Composition and ratio is EVA resin 75%-90%, tackifying resin (C5/C9 Petropols and modified resin thereof) 5%-15%, other filler auxiliary agent (antioxidant, ultra-violet absorber etc.) 0.5%-2%.First, carried out unreeling and flattening completely extruding recombination line by sclerosis polyester film base material, baking oven rises to design temperature (70 DEG C), ensures that in silane coupling agent, moisture is dried completely; Secondly, low melting point EVA, tackifying resin, ultra-violet absorber and other fillers are mixed according to above-mentioned quality proportioning, and is transferred to extruder feed system; Finally, after extruder rises to setting processing temperature (140-230 DEG C), compound is extruded and rolling to the non-hardened face of sclerosis polyester film, thus obtains the polyester lamination film that hardens.The thickness of hot melt adhesive layer controls to adjust mainly through extruder rotating speed and the recombination line speed of a motor vehicle.
3. the tackified finish of polyester lamination film
In order to the adhesive strength requirement of satisfied different PVC product surface coating, need to carry out tackified finish to polyester lamination film glue-line, namely at hot melt adhesive layer (4) surface coating adhesion promoting layer (5).Described adhesion promoting layer (5) is aqueous polymer emulsion coating, its thickness 0.2-0.8 μm, and coating weight in wet base is 1.0-2.5g/ ㎡.Adhesion promoting layer resin mainly based on the water-based emulsion (emulsion solid content 30%-50%) of polyurethane system and polyacrylate system, also comprises other functional aid (as adhesion promoter, levelling agent, defoamer etc.).First, carried out unreeling and flattening completely at coating line by polyester lamination film, baking oven rises to design temperature (60-80 DEG C), ensures that coating solution is fully dried; Secondly, by the auxiliary agents such as aqueous polyurethane emulsion or water polyacrylic acid emulsion, adhesion promoter, levelling agent and water and alcohol equal solvent according to above-mentioned quality proportioning mixing and stirring, and be transferred in the glue groove of coating line; Finally, the full width coating of intaglio plate is carried out and rolling to polyester film hot melt adhesive layer surface, thus obtains the sclerosis polyester lamination film of tackified finish.The thickness of adhesion promoting layer is mainly through the ink cell shape of applicator roll and the degree of depth, and the solid content of coating fluid controls.
4. the hot pressing compound of polyester lamination film and PVC sheet
Polyester lamination film and PVC sheet carry out hot pressing compound on pre-coating film laminating machine, and critical process is to control the temperature of compound position hot-pressing roller, pressure and speed.The polyester lamination film of identical fabric width and PVC sheet are drawn to compound position by unwinding device and deflector roll, polyester lamination film hardened layer contacts with hot-pressing roller, by pre-for pre-coating film glue-line heat fusing, by the two roller extruding in compound position, pre-coating film glue-line and PVC sheet outer surface are carried out hot pressing laminating again, composite sheet, by carrying out trimming rolling after cooling, can obtain the composite sheet that PET/PVC is material of main part.The coated temperature scope of the utility model composite sheet at 80-90 DEG C, overlay film pressure 3-5Mpa, overlay film speed 20-40m/min.
Embodiment 1
1, polyester film cure process
First, carried out unreeling and flattening completely at UV coating line by the BOPET base material of 25 μm × 1500mm × 6000m, baking oven rises to design temperature (70 DEG C), ensures coating quality; Secondly, by 80% acrylate monomer, 10% reactive diluent, 8% light trigger, 0.5% levelling agent and 1.5% wetting agent mix, and be transferred in the glue groove of UV coating line; Finally, turn on UV lamp, regulate UV power to be 400mJ/cm2, the full width coating of intaglio plate is carried out and rolling to polyester film, thus obtains the polyester film of 1500mm × 6000m with 8 μm of hardened layers.
2, the preparation of polyester lamination film
First, carried out unreeling and flattening completely extruding recombination line by 33 μm of thick sclerosis polyester film base materials, configuration solid content is the aq. polyethyleneimine of 5%, is added in glue groove, baking oven rises to design temperature (70 DEG C), ensures that in silane coupling agent, moisture is dried completely; Secondly, EVA resin (fusing point is 69 DEG C of softening points is 90 DEG C) by 87%, the C5 Petropols (softening point is 90 DEG C) of 10%, the ultra-violet absorber of 2.5% and the antioxidant (composite antioxidant 1010/168 of 0.5%, ratio is 2:3) mix, and be transferred to extruder feed system; Finally, after extruder rises to setting processing temperature (140-230 DEG C), compound is extruded and rolling to the non-hardened face of sclerosis polyester film, thus obtains the sclerosis polyester lamination film of 1480mm × 6000m with 25 μm of hot melt adhesive layers.
3, the tackified finish of polyester lamination film
First, carried out unreeling and flattening completely at coating line by polyester lamination film, baking oven rises to design temperature (70 DEG C), ensures that coating solution is fully dried; Secondly, the aqueous polyurethane emulsion (original solids content 35%) by 30%, the adhesion promoter of 2%, the levelling agent of 1%, the water of 60% and 7% alcohol mixing and stirring, and be transferred in the glue groove of coating line; Finally, the full width coating of intaglio plate is carried out and rolling to polyester film hot melt adhesive layer surface, thus obtains the sclerosis polyester lamination film of 1460mm × 6000m tackified finish.
4, the hot pressing compound of polyester lamination film and PVC sheet
By above-mentioned PET pre-coating film and fabric width 1460mm, the white PVC sheet of thickness 250 μm is drawn to compound position by unwinding device and deflector roll, coated temperature 85 DEG C, overlay film pressure 3Mpa, hot pressing compound is carried out under the condition of overlay film speed 30m/min, composite sheet, by techniques such as cooling, trimming and rollings, obtains the PET/PVC composite sheet that fabric width is 1420mm.
The gross thickness of this composite sheet is about 308 μm, and namely 8 μm of hardened layers+25 μm of BOPET+25 μm hot melt adhesive layer+250 μm of white PVC sheet, can be used as the surface decoration materials such as white domestic appliances shell.
Embodiment 2
1, polyester film cure process
First, carried out unreeling and flattening completely at UV coating line by the PETG base material of 250 μm × 1300mm × 4000m, baking oven rises to design temperature (70 DEG C), ensures coating quality; Secondly, by 85% acrylate monomer, 18% reactive diluent, 5% light trigger, 0.5% levelling agent and 1.5% wetting agent mix, and be transferred in the glue groove of UV coating line; Finally, turn on UV lamp, regulate UV power to be 350mJ/cm2, the full width coating of intaglio plate is carried out and rolling to polyester film, thus obtains the polyester film of 1300mm × 4000m with 10 μm of hardened layers.
2, the preparation of polyester lamination film
First, carried out unreeling and flattening completely extruding recombination line by 260 μm of thick sclerosis polyester film base materials, configuration solid content is the aq. polyethyleneimine of 5%, is added in glue groove, baking oven rises to design temperature (70 DEG C), ensures that in silane coupling agent, moisture is dried completely; Secondly, EVA resin (fusing point is 69 DEG C of softening points is 90 DEG C) by 90%, the C5 Petropols (softening point is 90 DEG C) of 7%, the ultra-violet absorber of 2.5% and the antioxidant (composite antioxidant 1010/168 of 0.5%, ratio is 2:3) mix, and be transferred to extruder feed system; Finally, after extruder rises to setting processing temperature (140-230 DEG C), compound is extruded and rolling to the non-hardened face of sclerosis polyester film, thus obtains the sclerosis polyester lamination film of 1280mm × 4000m with 30 μm of hot melt adhesive layers.
3, the tackified finish of polyester lamination film
First, carried out unreeling and flattening completely at coating line by polyester lamination film, baking oven rises to design temperature (70 DEG C), ensures that coating solution is fully dried; Secondly, the aqueous acrylic emulsion (original solids content 50%) by 30%, the adhesion promoter of 2%, the levelling agent of 1%, the water of 60% and 7% alcohol mixing and stirring, and be transferred in the glue groove of coating line; Finally, the full width coating of intaglio plate is carried out and rolling to polyester film hot melt adhesive layer surface, thus obtains the sclerosis polyester lamination film of 1260mm × 4000m tackified finish.
4, the hot pressing compound of polyester lamination film and PVC sheet
By above-mentioned PET pre-coating film and fabric width 1260mm, the PVC sheet being printed with grain pattern of thickness 150 μm is drawn to compound position by unwinding device and deflector roll, coated temperature 80 DEG C, overlay film pressure 3Mpa, hot pressing compound is carried out under the condition of overlay film speed 40m/min, composite sheet, by techniques such as cooling, trimming and rollings, obtains the PET/PVC composite sheet that fabric width is 1240mm.
This composite sheet gross thickness is about 440 μm, and namely 10 μm of hardened layers+250 μm of PETG+30 μm hot melt adhesive layer+150 μm of grain pattern PVC sheet, can be used as the furniture Wood plastic boards surface decoration materials such as cabinet.
The foregoing is only preferred embodiment of the present utility model, the numerical value mentioned in the description of above-mentioned description and number range are not limited to the utility model, just for the utility model provides preferred embodiment, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. a decoration composite sheet structures, described structure comprises priming coat (3), the laminated polyester film (2) on described priming coat (3) and the cementation zone (1) on described laminated polyester film (2) on the adhesion promoting layer (5) in PVC sheet (6), described PVC sheet (6), the hot melt adhesive layer (4) on described adhesion promoting layer (5), described melten gel layer (4).
2. structure according to claim 1, is characterized in that, described cementation zone (1) is UV light-cured resin coating, and its case hardness reaches more than 2H, thickness 5-15 μm.
3. structure according to claim 1, is characterized in that, described laminated polyester film (2) is biaxially oriented polyester film (BOPET) or polyester film (PETG), and its thickness is 25-300 μm.
4. structure according to claim 1, is characterized in that, described priming coat (3) is water miscible polymeric base coat agent, its thickness 0.01-0.03 μm.
5. structure according to claim 1, is characterized in that, described hot melt adhesive layer (4) is based on the melt viscosity resin of the ethylene-vinyl acetate copolymer of low melting point (EVA), its thickness 15-50 μm.
6. structure according to claim 1, is characterized in that, described PVC sheet (6) is that surface printing has decorative pattern or self fills the PVC sheet of different pigment, its thickness 150-500 μm.
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| CN201520022411.0U CN204701229U (en) | 2015-01-13 | 2015-01-13 | A kind of decoration composite sheet structures |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104589746A (en) * | 2015-01-13 | 2015-05-06 | 北京康得新功能材料有限公司 | Composite sheet structure for decoration and preparation method of composite sheet structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104589746A (en) * | 2015-01-13 | 2015-05-06 | 北京康得新功能材料有限公司 | Composite sheet structure for decoration and preparation method of composite sheet structure |
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Effective date of registration: 20200304 Address after: 215600 west side of Taiwan Road, Zhangjiagang Free Trade Zone, Suzhou City, Jiangsu Province, south side of Hexin chemical Patentee after: ZHANGJIAGANG FREE TRADE ZONE KANGDE FILM INDUSTRY CO., LTD. Address before: 102200, 26 Zhenxing Road, Beijing, Changping District Patentee before: BEIJING KANGDEXIN FUNCTION MATERIAL CO., LTD. |