CN103965799A - Scratch resistant sub-gloss pre-coated film and preparation method thereof - Google Patents
Scratch resistant sub-gloss pre-coated film and preparation method thereof Download PDFInfo
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- CN103965799A CN103965799A CN201410141550.5A CN201410141550A CN103965799A CN 103965799 A CN103965799 A CN 103965799A CN 201410141550 A CN201410141550 A CN 201410141550A CN 103965799 A CN103965799 A CN 103965799A
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Abstract
The invention relates to a scratch resistant sub-gloss pre-coated film and a preparation method thereof. The scratch resistant sub-gloss pre-coated film comprises a scratch resistant sub-gloss base material, a middle layer and a hot melting adhesive layer, wherein the middle layer is formed between the scratch resistant sub-gloss base material and the hot melting adhesive layer; the scratch resistant sub-gloss base material is formed by a thin polymer film and a scratch resistant sub-gloss coating; the scratch resistant sub-gloss coating is formed on the lower surface of the thin polymer film. According to the invention, printed products prepared by adopting the scratch resistant sub-gloss pre-coated film through film-coating are elegant and dignified in impression, the outer surface of the pre-coated film has excellent post-press finishing performance, the processes such as UV printing and gold-blocking can be further carried out conveniently.
Description
Technical field
The invention belongs to printing film coating technique field, relate to a kind of sub-light pre-coating film with adhesion strength.
Background technology
Pre-coating film is a kind of for the very important flexible packing material of print product, and this product in use has the features such as safety and environmental protection, easy to operate, energy-efficient, excellent performance, and its market portion progressively improves.Pre-coating film is overlayed on to the printed matter surfaces such as paper printing thing, packing material and can play good waterproof, the provide protection such as anti-tear.Particularly sub-light pre-coating film passes through light diffuse-reflectance, give soft, the deep sensation of people, but, the wrapping material that use the processing of sub-light pre-coating film in transport and normal use procedure usually because with hard object contact, produce and scratch or/and cut affects the attractive in appearance of wrapping material under external force.
CN102816512 discloses a kind of scratch resistance water-borne wood coating, and it is made up of synthesis emulsion, film coalescence aid, defoamer, deionized water, wetting agent, the poly-methyl alkyl silicon solution of mass ratio 48～52% aralkyl modifications, wax emulsion, thickening material and sanitas.But the disclosed coating of CN102816512 is only applicable to woodenware material, form the coating with adhesion strength on wood furniture surface.
CN101564720 discloses a kind of preparation method of biaxially oriented polyester film surface wear-resistant scratch-resistant coating, and it comprises: urethane six acrylate, epoxy modification acrylate, Dipentaerythritol monohydroxy six acrylate, Viscoat 295, tri (propylene glycol) diacrylate, butyl (tetra) titanate and compound crack type photoinitiator are evenly mixed to get to coating; Then coating is coated in to the BOPET film surface that corona treatment is crossed, through ultraviolet light polymerization, obtains biaxially oriented polyester film surface wear-resistant scratch-resistant coating.But the disclosed biaxially oriented polyester film surface wear-resistant scratch-resistant coating of CN101564720 need to carry out ultra-violet curing.
CN201702995 discloses a kind of biaxial oriented polypropylene anti-scratch matte laminating film, and it comprises base material, middle layer and hot melt adhesive layer.Base material is the sub-optical thin film of scratch resistance Biaxially oriented polypropylene film (BOPP), and base material is made up of sub-light polypropylene layer and scratch resistance coating.Wherein, the thickness of sub-light polypropylene layer is between 12～16.5 microns, and the thickness of scratch resistance coating is between 2～3.5 microns.Middle layer, hot melt adhesive layer evenly apply the sub-light polypropylene layer surface that is compounded in base material successively; The thickness of base material is between 14～20 microns, and the thickness in middle layer is between 0.01～0.03 micron, and the thickness of hot melt adhesive layer is between 10～20 microns.At present, in pre-coating film industry, increasing high-end customer claims to the scratch resistance of sub-light pre-coating film, and in order to tackle this market demand, exploitation anti-scratching flat top pre-coating film is extremely urgent.
Summary of the invention
The present invention is intended to one of solve the problems of the technologies described above at least to a certain extent.For this reason, one object of the present invention is to propose a kind of sub-light pre-coating film with adhesion strength and preparation method thereof.
In a first aspect of the present invention, the present invention proposes a kind of anti-scratching flat top pre-coating film.According to embodiments of the invention, this Asia light pre-coating film comprises: anti-scratching flat top base material, middle layer and hot melt adhesive layer, middle layer is formed between anti-scratching flat top base material and hot melt adhesive layer.Wherein, according to a particular embodiment of the invention, described anti-scratching flat top base material is made up of polymer film layer and anti-scratching flat top coating, and wherein said anti-scratching flat top coating formation is in the lower surface of described polymer film layer.This pre-coating film can provide the scratch resistant ability of supporting preferably, reduces the probability that cut produces in carrying and use procedure, keeps the perfect outward appearance of printed matter.Simultaneously this pre-coating film has kept higher surface tension, and its sub-light and high mist degree can give printed matter elegance, steady perception, and improving product quality meets the demand of pre-coating film industry high-end customer.
In a second aspect of the present invention, the present invention proposes a kind of method for the preparation of above-mentioned anti-scratching flat top pre-coating film.According to the embodiment of the present invention, the method comprises: corona treatment is carried out in the surface of anti-scratching flat top base material; In the formation middle layer, surface of the anti-scratching flat top base material through corona treatment; The dry anti-scratching flat top base material that is formed with middle layer under 85 degrees Celsius～95 degrees Celsius; And utilize forcing machine, on the middle layer through super-dry, form hot melt adhesive layer, to obtain anti-scratching flat top pre-coating film.Wherein, according to a particular embodiment of the invention, described anti-scratching flat top base material obtains by the following method: polymer film layer is provided, and described polymer film layer is formed by least one that is selected from Biaxially oriented polypropylene film (BOPP), biaxial stretching polyester and biaxial tension nylon; Lower surface by anti-scratching flat top-coat varnish roller coat at described polymer film layer, to form anti-scratching flat top coating; And carry out forming described anti-scratching flat top base material after drying treatment.The pre-coating film obtaining by the method can provide the scratch resistant ability of supporting preferably, reduces the probability that cut produces in carrying and use procedure, keeps the perfect outward appearance of printed matter.Simultaneously prepared pre-coating film has kept higher surface tension, and its sub-light and high mist degree can give printed matter elegance, steady perception, and improving product quality meets the demand of pre-coating film industry high-end customer.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Brief description of the drawings
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination is understood becoming the description of embodiment obviously and easily, wherein:
Fig. 1 is the anti-scratching flat top pre-coating film section structure schematic diagram according to the embodiment of the present invention, wherein
1 represents anti-scratching flat top base material, and 2 represent middle layer, and 3 represent hot melt adhesive layer, and 4 represent polymer film layer, and 5 represent anti-scratching flat top coating.
Embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment being described with reference to the drawings, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
In a first aspect of the present invention, the present invention proposes a kind of anti-scratching flat top pre-coating film.According to embodiments of the invention, with reference to Fig. 1, this Asia light pre-coating film comprises: anti-scratching flat top base material 1, middle layer 2 and hot melt adhesive layer 3, middle layer 2 is formed between anti-scratching flat top base material 1 and hot melt adhesive layer 3.According to embodiments of the invention, anti-scratching flat top base material 1, middle layer 2 are identical with the width of hot melt adhesive layer 3.According to a particular embodiment of the invention, anti-scratching flat top base material 1 is made up of polymer film layer 4 and anti-scratching flat top coating 5, and wherein anti-scratching flat top coating 5 is formed at the lower surface of polymer film layer 4.The anti-scratching flat top pre-coating film providing according to the embodiment of the present invention can provide the scratch resistant ability of supporting preferably, reduces the probability that cut produces in carrying and use procedure, keeps the perfect outward appearance of printed matter.Simultaneously this pre-coating film has kept higher surface tension, and its sub-light and high mist degree can give printed matter elegance, steady perception, and improving product quality meets the demand of pre-coating film industry high-end customer.
According to embodiments of the invention, polymer film layer 4 is formed by least one that is selected from Biaxially oriented polypropylene film (BOPP) (BOPP), biaxial stretching polyester (BOPET) and biaxial tension nylon (BOPA).According to embodiments of the invention, the thickness of polymer film layer 4 is 12 microns～100 microns, and the thickness of anti-scratching flat top coating 5 is 1 micron～10 microns.According to embodiments of the invention, anti-scratching flat top coating 5 is that the lower surface by scratch resistance varnish being coated on to polymer film layer 4 forms, and wherein, scratch resistance varnish comprises: the polyurethane dispersions of 60～90 weight parts; 1～10 weight part scratching resistant; The sub-light auxiliary agent of 3～10 weight parts; 0.05～0.2 weight part levelling wetting agent; 0.1～0.5 weight part defoamer; And 1～15 weight part crosslinking and curing agent.According to embodiments of the invention, scratch resistance varnish further comprises: 1～5 weight part film coalescence aid.According to embodiments of the invention, the type of anti-scratching flat top-coat varnish is also not particularly limited, can be water-based can be also solvent type.
According to embodiments of the invention, above-mentioned polyurethane dispersions be the polyurethane dispersions that is selected from acrylic acid modified polyurethane dispersions, polyester modification, polycarbonate modified polyurethane dispersions and aliphatics modification polyurethane dispersions one of at least.The example that is according to the present invention, the solid content of polyurethane dispersions is 20～40 % by weight, the quality percentage composition of hydroxyl is 1～4 % by weight.Polyurethane dispersions of the present invention is the main film forming substance of anti-scratching flat top coating, requirement has higher hydroxyl and (or) carboxyl-content, be used for and solidifying agent generation crosslinking reaction, will there is certain base material wettability and film-forming properties simultaneously.
According to embodiments of the invention, above-mentioned scratching resistant is for being selected from least one of silicon-dioxide, silicone resin, methyl methacrylate powder (PMMA), PE wax powder and PTFE wax powder, wherein, the median size of scratching resistant is 1 micron～10 microns, fusing point is more than 110 degrees Celsius, and proportion is 0.9g/cm
3～1.1g/cm
3.The scratching resistant that the present invention adopts easily disperses, and thermostability and smoothness are good.This scratching resistant is dispersed in the hardness that can improve paint film in polyaminoester emulsion (solution), plays the effect of opposing external force, reaches scratch resistant object; Also the smoothness that increases coatingsurface, can be distributed to reactive force larger region while being subject to External Force Acting simultaneously, also can play scratch resistant object.
According to embodiments of the invention, above-mentioned sub-light auxiliary agent is to be selected from least one of silicon-dioxide, micronization wax and organic sub-light auxiliary agent, and wherein, the median size of described sub-light auxiliary agent is 1 micron～10 microns, and proportion is 1g/cm
3～1.5g/cm
3, specific refractory power is 1.4～1.6, water content is lower than 5%.The sub-light auxiliary agent that the present invention adopts is dispersed in polyurethane dispersions and can forms rough effect on a kind of microcosmic at coatingsurface after drying, produces diffuse-reflectance and plays photoextinction.
According to embodiments of the invention, above-mentioned wetting agent is at least one being selected from polysiloxane or the unmodified polysiloxane of ethanol, Virahol, modification.This wetting agent can improve the wetting ability of scratch resistance varnish on BOPP, BOPET or BOPA surface, improves the bonding force between coating and BOPP, BOPET or BOPA, also can make coatingsurface more smooth, fine and close simultaneously.
According to embodiments of the invention, above-mentioned defoamer is to be selected from least one of polydimethylsiloxane, ethanol and polypropylene glycerol aether.Defoamer of the present invention can be eliminated the small bubbles that form because of high-speed stirring and crosslinking reaction etc., eliminates the impact of bubble on appearance of coat.
According to embodiments of the invention, above-mentioned film coalescence aid is to be selected from least one of N-Methyl pyrrolidone, lauryl alcohol ester, ethylene glycol and diethylene glycol monobutyl ether.Film coalescence aid of the present invention can improve the film forming properties of polyurethane dispersions, helps its film forming, and after film forming, film coalescence aid volatilizees, and can not affect the performance of coating.
According to embodiments of the invention, above-mentioned crosslinking and curing agent for be selected from polyfunctionality aziridine, polycarbodiimide, HDI tripolymer and HDI-IPDI compound trimerical at least one.Crosslinking and curing agent of the present invention can with polyurethane dispersions in hydroxyl and carboxyl generation crosslinking reaction, thereby improve the hardness of paint film and its sticking power to base material.
According to embodiments of the invention, middle layer 2 is formed by polymine.According to embodiments of the invention, hot melt adhesive layer 3 is to be formed by least one that is selected from ethylene-vinyl acetate (EVA), Low Density Polyethylene (LDPE), ethylene-propylene acetoacetic ester (EEA) and ethylene-methyl acrylate (EMA).According to example of the present invention, middle layer 2 and hot melt adhesive layer 3 are to be evenly coated in successively on the surface of anti-scratching flat top base material.
According to an example of the present invention, the thickness of anti-scratching flat top base material 1 is between 13 microns～110 microns, and at 0.01 micron～0.03 micron, (coated weight is 0.009g/m to the thickness in middle layer 2
2～0.011g/m
2) between, and the thickness of hot melt adhesive layer 3 is between 25 microns～100 microns.According to another example of the present invention, the thickness of anti-scratching flat top base material 1 is between 13 microns～85 microns, and at 0.01 micron～0.02 micron, (coated weight is 0.009g/m to the thickness in middle layer 2
2～0.010g/m
2) between, and the thickness of described hot melt adhesive layer 3 is between 30 microns～100 microns.
In another aspect of the present invention, the present invention proposes a kind of method for the preparation of above-mentioned anti-scratching flat top pre-coating film.According to the embodiment of the present invention, the method comprises: corona treatment is carried out in the surface of anti-scratching flat top base material; In the formation middle layer, surface of the anti-scratching flat top base material through corona treatment; The dry anti-scratching flat top base material that is formed with middle layer under 85 degrees Celsius～95 degrees Celsius; And utilize forcing machine, on the middle layer through super-dry, form hot melt adhesive layer, to obtain anti-scratching flat top pre-coating film.Wherein, according to a particular embodiment of the invention, provide polymer film layer, described polymer film layer is formed by least one that is selected from Biaxially oriented polypropylene film (BOPP), biaxial stretching polyester and biaxial tension nylon; Lower surface by anti-scratching flat top-coat varnish roller coat at described polymer film layer, to form anti-scratching flat top coating; And carry out forming described anti-scratching flat top base material after drying treatment.The pre-coating film obtaining by the method can provide the scratch resistant ability of supporting preferably, reduces the probability that cut produces in carrying and use procedure, keeps the perfect outward appearance of printed matter.Simultaneously prepared pre-coating film has kept higher surface tension, and its sub-light and high mist degree can give printed matter elegance, steady perception, and improving product quality meets the demand of pre-coating film industry high-end customer.
According to embodiments of the invention, on common BOPP, BOPET or BOPA polymer film layer, produce the even no color differnece of one deck, anti-scratching flat top coating that sticking power is good by coating process at the outside surface of film, to obtain anti-scratching flat top film substrate.According to embodiments of the invention, the polyurethane dispersions of 60～90 weight parts, 1～10 weight part scratching resistant, 3～10 weight part matting agents, 0.05～0.2 weight part wetting agent, 0.1～0.5 weight part defoamer, 1～15 weight part crosslinking and curing agent and other components are mixed, as required, can further add 1～5 weight part film coalescence aid, then, anti-scratching flat top coating in BOPP, BOPET or BOPA polymeric film surface-coated, to obtain anti-scratching flat top BOPP, anti-scratching flat top BOPET or anti-scratching flat top BOPA base material.According to example of the present invention, above-mentioned anti-scratching flat top base material is placed on unreeling machine, and unreels by air-expanding shaft.According to embodiments of the invention, above-mentioned anti-scratching flat top substrate surface is carried out to corona treatment, make the dyne value of above-mentioned anti-scratching flat top base material: anti-scratching flat top BOPP reaches 36dyne, anti-scratching flat top BOPET or anti-scratching flat top BOPA reach 54dyne.
According to embodiments of the invention, polymine (PEI) aqueous solution that by solid content is 5～10 % by weight is deployed into the polymine that solid content is 0.5～1.5 % by weight (PEI) aqueous solution by thin up, stirs and obtains middle layer materials.According to embodiments of the invention, middle layer is to form by the surface-coated polyethyleneimine: amine aqueous solution of the anti-scratching flat top base material through corona treatment, wherein, the solid content of described polyethyleneimine: amine aqueous solution is 0.5～1.5 % by weight, and the usage quantity of described polyethyleneimine: amine aqueous solution is 0.01g/m
2.The compound method of 0.5～1.5 % by weight polyethyleneimine: amine aqueous solution is also not particularly limited, embodiment according to the present invention can be that polymine (PEI) aqueous solution of 5～10 % by weight is by adding water to be deployed into the polymine that solid content is 0.5～1.5 % by weight (PEI) aqueous solution by solid content.According to example of the present invention, utilize drying plant dry under 85 degrees Celsius～95 degrees Celsius, make polymine (PEI) be solidificated in anti-scratching flat top substrate surface, there is the anti-scratching flat top base material in middle layer thereby form, to obtain the middle layer that thickness is about 0.01 micron～0.03 micron.
According to embodiments of the invention, utilize forcing machine, on the middle layer through super-dry, form hot melt adhesive layer, to obtain anti-scratching flat top pre-coating film.According to an example of the present invention, will be loaded with the anti-scratching flat top base material of having dried polymine (PEI), be sent to compound position by extruding the deflector roll of composite production line, forcing machine extruding and hot melting glue-line is with expecting on anti-scratching flat top base material.According to another example of the present invention, there is ozonizer on the side, compound position of extruding composite production line, the jet curtain coating place of the hot melt adhesive layer of extruding to forcing machine of the ozone being produced by ozonizer, the concentration of ozone is 40 volume %, power 800W, gas flow is 3.5SCXFM, ozone makes hot melt adhesive layer surface produce some polar groups, the extruding of the anti-scratching flat top base material that is then loaded with polymine (PEI) and the hot melt adhesive curtain coating nip roller by extruding the compound position of composite production line combines, form composite membrane, stretched again, cooling, after deburring, being admitted to thickness tester detects.Embodiment according to the present invention, the pressure of nip roller is 35PSI, the desired temperature of forcing machine is respectively 130,160,190,200,220,220,220,220,220,220,220,220,220,220,220,220,220,220 degrees Celsius.
According to embodiments of the invention, utilize beta-ray measurement instrument to measure the thickness of pre-coating film, after measurement by its result feedback to computer, the die gap at the screw speed of computer control forcing machine and die head position, to obtain the consistent pre-coating film of even thickness.
According to embodiments of the invention, after forming hot melt adhesive layer, further carry out the second corona treatment, to obtain a certain amount of polar group, it is more than 50dyne making the surperficial dyne value of hot melt adhesive layer.
According to embodiments of the invention, utilize winder by the pre-coating film harvest coiled material after the second corona.According to embodiments of the invention, according to demand, the pre-coating film of winder harvest coiled material is cut into the volume of cutting of the required width of client and length.
Embodiment 1
Prepare anti-scratching flat top BOPP base material
By 75 weight part aliphatic polyurethane water miscible liquids, (wherein the solid content of polyurethane dispersions is 20 % by weight, the quality percentage composition of hydroxyl is 1 % by weight, 5 weight part polysiloxane crosslinked spherical micro mists (scratching resistant), the organic sub-light auxiliary agent (ST-8 of 3 weight part, wherein the median size of ST-8 is 5-10 micron, proportion is 1.06g/cm3, specific refractory power is 1.59, water content is lower than 5%), 0.2 weight part polydimethylsiloxane (levelling wetting agent), 0.5 parts by weight of ethanol (defoamer), the how crosslinked aziridine (crosslinking and curing agent) of 2.5 weight part N-Methyl pyrrolidone (film coalescence aid) and 1 weight part mixes in high-speed mixer, after filtration, be coated in the matt surface of commercially available sub-light BOPP film (specification is 15 μ m × 1420mm × 12000m) by the mode of roller coat, after drying, form anti-scratching flat top base material, its specification is 18 μ m × 1420mm × 12000m.
Prepare anti-scratching flat top BOPP pre-coating film
This pre-coating film is the PEI middle layer that is coated with successively 0.01 μ m at the shining surfaces of above-mentioned anti-scratching flat top BOPP base material, the composite hot melt adhesive EVA layer of 25 μ m.Because need trimming in the process of composite hot melt glue-line, so the specification of final anti-scratching flat top BOPP pre-coating film is 43 μ m × 1400mm × 12000m.Its working method is as follows:
1) preparation of material in the middle of: polymine (PEI) aqueous solution that is 5 % by weight by solid content is deployed into the polymine that solid content is 0.95 % by weight (PEI) aqueous solution, stirs and obtains middle layer materials.
2) unreel: the anti-scratching flat top base material that is 1420mm by fabric width, is placed on unreeling machine and by air-expanding shaft and unreels; Its thickness is 18 μ m.
3) front corona treatment: the anti-scratching flat top base material glossy surfaces by unreeling machine is carried out to corona treatment, make its dyne value reach 36dyne.
4) apply middle layer: above-mentioned anti-scratching flat top base material, by silane coupling agent coating equipment, applies middle layer materials at corona treatment face, and the usage quantity of middle layer material is 0.01g/m
2.
5) first is dry: the anti-scratching flat top base material that utilizes drying plant will be coated with polymine (PEI) aqueous solution is dried, make polymine (PEI) be solidificated in anti-scratching flat top substrate surface, bake out temperature is 85 degrees Celsius～95 degrees Celsius, and after drying, the thickness in middle layer is about 0.01 micron.
6) composite hot melt adhesive EVA layer: be loaded with the anti-scratching flat top base material of drying polymine (PEI), be sent to compound position by extruding the deflector roll of composite production line, forcing machine is extruded EVA to anti-scratching flat top base material; There is ozonizer on the side, compound position of extruding composite production line, the jet curtain coating place of the hot melt adhesive EVA layer of extruding to forcing machine of the ozone being produced by ozonizer, the concentration of ozone is 40 volume %, power 800W, gas flow is 3.5SCXFM, ozone makes EVA layer surface produce some polar groups, the extruding of the anti-scratching flat top base material that is then loaded with polymine (PEI) and the EVA casting films nip roller by extruding the compound position of composite production line combines, form composite membrane, after stretched, cooling, deburring, be admitted to thickness tester and detect again; The thickness that passes through the extrusion capacity control hot melt adhesive layer that regulates forcing machine using is 25 μ m.
The pressure of nip roller is 35PSI, and the desired temperature of forcing machine is respectively 130,160,190,200,220,220,220,220,220,220,220,220,220,220,220,220,220,220 degrees Celsius.
7) thickness measurement and adjustment: utilize beta-ray measurement instrument to measure the thickness of pre-coating film, after measurement by its result feedback to computer, the die gap at the screw speed of computer control forcing machine and die head position, to obtain the consistent pre-coating film of even thickness.
8) corona treatment after: corona treatment is carried out in hot melt adhesive EVA layer surface, to obtain a certain amount of polar group, make more than its surperficial dyne value reaches 50dyne.
9) rolling: utilize winder by the pre-coating film harvest coiled material after corona.
Embodiment 2
Prepare anti-scratching flat top BOPET base material by 60 weight part polycarbonate type polyurethane solution, the solid content of wherein said polycarbonate is 30 % by weight, the quality percentage composition of hydroxyl is 3 % by weight, 1 weight account polyethylene wax scratching resistant (AQUACER1547, 1547 fusing point is 125 DEG C, non-volatile part is 35 % by weight), 10 weight part silica flatting agents (OK520), the 0.05 polyether-modified polydimethylsiloxane of weight part levelling wetting agent (BD-3308), 0.3 weight part defoamer (XPT-118) and 7.5 weight part aliphatic polyisocyante solidifying agent (Z4470SN) mix in homogenizer, after filtration, be coated on a surface of commercially available BOPET light film (specification is 12 μ m × 1670mm × 12000m) by the mode of roller coat, after drying, form anti-scratching flat top BOPET base material, its specification is 13 μ m × 1670mm × 12000m.
Preparing this pre-coating film of anti-scratching flat top BOPET pre-coating film is the PEI middle layer that is coated with successively 0.02 μ m at the shining surfaces of above-mentioned anti-scratching flat top BOPET base material, and the composite hot melt adhesive LDPE layer of 100 μ m forms.Because need trimming in the process of composite hot melt glue-line, so the specification of final anti-scratching flat top BOPET pre-coating film is 113 μ m × 1650mm × 12000m.Its working method is similar to Example 1, and difference is: embodiment 2 uses LDPE as hot melt adhesive layer, and its thickness is 100 μ m.
Embodiment 3
Prepare anti-scratching flat top BOPP base material
By 90 weight part PAUR dispersions, 10 parts by weight of methylmethacrylate powder (MTX-50, wherein the median size of MTX-50 is 5 microns, apparent specific gravity is 0.9g/cm3), 6.5 weight part micronization wax (CERAFLOUR928, wherein 928 fusing point is 115 DEG C), 0.125 weight part Virahol (levelling wetting agent), 0.1 weight part polypropylene glycerol aether, 5 weight part ethylene glycol (film coalescence aid), mix in high-speed mixer with 15 weight part polycarbodiimides, after filtration, be coated in the matt surface of commercially available sub-light BOPP film (specification is 100 μ m × 1420mm × 12000m) by the mode of roller coat, after drying, form anti-scratching flat top base material, its specification is 110 μ m × 1420mm × 12000m.
Prepare anti-scratching flat top BOPP pre-coating film
This pre-coating film is the PEI middle layer that is coated with successively 0.03 μ m at the shining surfaces of above-mentioned anti-scratching flat top BOPP base material, the composite hot melt adhesive EVA layer of 50 μ m.Because need trimming in the process of composite hot melt glue-line, so the specification of final anti-scratching flat top BOPP pre-coating film is 160 μ m × 1400mm × 12000m.Its working method is as follows:
1) preparation of material in the middle of: polymine (PEI) aqueous solution that is 5 % by weight by solid content is deployed into the polymine that solid content is 0.95 % by weight (PEI) aqueous solution, stirs and obtains middle layer materials.
2) unreel: the anti-scratching flat top base material that is 1420mm by fabric width, is placed on unreeling machine and by air-expanding shaft and unreels; Its thickness is 110 μ m.
3) front corona treatment: the anti-scratching flat top base material glossy surfaces by unreeling machine is carried out to corona treatment, make its dyne value reach 36dyne.
4) apply middle layer: above-mentioned anti-scratching flat top base material, by silane coupling agent coating equipment, applies middle layer materials at corona treatment face, and the usage quantity of middle layer material is 0.01g/m
2.
5) first is dry: the anti-scratching flat top base material that utilizes drying plant will be coated with polymine (PEI) aqueous solution is dried, make polymine (PEI) be solidificated in anti-scratching flat top substrate surface, bake out temperature is 85 degrees Celsius～95 degrees Celsius, and after drying, the thickness in middle layer is about 0.03 micron.
6) composite hot melt adhesive EVA layer: be loaded with the anti-scratching flat top base material of drying polymine (PEI), be sent to compound position by extruding the deflector roll of composite production line, forcing machine is extruded EVA to anti-scratching flat top base material; There is ozonizer on the side, compound position of extruding composite production line, the jet curtain coating place of the hot melt adhesive EVA layer of extruding to forcing machine of the ozone being produced by ozonizer, the concentration of ozone is 40 volume %, power 800W, gas flow is 3.5SCXFM, ozone makes EVA layer surface produce some polar groups, the extruding of the anti-scratching flat top base material that is then loaded with polymine (PEI) and the EVA casting films nip roller by extruding the compound position of composite production line combines, form composite membrane, after stretched, cooling, deburring, be admitted to thickness tester and detect again; The thickness that passes through the extrusion capacity control hot melt adhesive layer that regulates forcing machine using is that the pressure of 50 μ m nip rollers is 35PSI, and the desired temperature of forcing machine is respectively 130,160,190,200,220,220,220,220,220,220,220,220,220,220,220,220,220,220 degrees Celsius.
7) thickness measurement and adjustment: utilize beta-ray measurement instrument to measure the thickness of pre-coating film, after measurement by its result feedback to computer, the die gap at the screw speed of computer control forcing machine and die head position, to obtain the consistent pre-coating film of even thickness.
8) corona treatment after: corona treatment is carried out in hot melt adhesive EVA layer surface, to obtain a certain amount of polar group, make more than its surperficial dyne value reaches 50dyne.
9) rolling: utilize winder by the pre-coating film harvest coiled material after corona.
Embodiment the performance test results is as shown in the table:
As can be seen from the above table, adopt the anti-scratching flat top pre-coating film prepared of the present invention to there is good surface hardness, thereby improved the ability of its surperficial scratch resistance, cut; Meanwhile, scratch resistance pre-coating film outside surface presents higher surface tension, can directly carry out UV printing on surface, gold stamping etc. further process.
In description of the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", orientation or the position relationship of instructions such as " circumferentially " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of device or the element of instruction or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as instruction or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, First Characteristic Second Characteristic " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, First Characteristic Second Characteristic " on ", " top " and " above " but First Characteristic directly over Second Characteristic or oblique upper, or only represent that First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " can be First Characteristic under Second Characteristic or tiltedly, or only represent that First Characteristic level height is less than Second Characteristic.
In the description of this specification sheets, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiment or example.
Although illustrated and described embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment within the scope of the invention in the situation that not departing from principle of the present invention and aim, amendment, replacement and modification.
Claims (24)
1. an anti-scratching flat top pre-coating film, it is characterized in that, comprise anti-scratching flat top base material, middle layer and hot melt adhesive layer, described middle layer is formed between described anti-scratching flat top base material and described hot melt adhesive layer, described anti-scratching flat top base material is made up of polymer film layer and anti-scratching flat top coating, and wherein said anti-scratching flat top coating formation is in the lower surface of described polymer film layer.
2. anti-scratching flat top pre-coating film according to claim 1, is characterized in that, described polymer film layer is formed by least one that is selected from Biaxially oriented polypropylene film (BOPP), biaxial stretching polyester and biaxial tension nylon.
3. anti-scratching flat top pre-coating film according to claim 1, is characterized in that, described anti-scratching flat top coating is that the lower surface by scratch resistance varnish being coated on to described polymer film layer forms, and wherein, described scratch resistance varnish comprises:
The polyurethane dispersions of 60～90 weight parts;
1～10 weight part scratching resistant;
The sub-light auxiliary agent of 3-10 weight part;
0.05～0.2 weight part levelling wetting agent;
0.1～0.5 weight part defoamer; And
1～15 weight part crosslinking and curing agent.
4. anti-scratching flat top pre-coating film according to claim 3, is characterized in that, described scratch resistance varnish further comprises: 1～5 weight part film coalescence aid.
5. anti-scratching flat top pre-coating film according to claim 3, it is characterized in that, described polyurethane dispersions be the polyurethane dispersions that is selected from acrylic acid modified polyurethane dispersions, polyester modification, polycarbonate modified polyurethane dispersions and aliphatics modification polyurethane dispersions one of at least.
6. anti-scratching flat top pre-coating film according to claim 5, is characterized in that, the solid content of described polyurethane dispersions is 20～40 % by weight, and the quality percentage composition of hydroxyl is 1～4 % by weight.
7. anti-scratching flat top pre-coating film according to claim 3, is characterized in that, described scratching resistant is to be selected from least one of silicon-dioxide, silicone resin, methyl methacrylate powder, PE wax powder and PTFE wax powder,
Wherein,
The median size of described scratching resistant is 1 micron～10 microns, and fusing point is more than 110 DEG C, and proportion is 0.9g/cm
3～1.1g/cm
3.
8. anti-scratching flat top pre-coating film according to claim 3, is characterized in that, described sub-light auxiliary agent is to be selected from least one of silicon-dioxide, micronization wax and organic sub-light auxiliary agent,
Wherein,
The median size of described sub-light auxiliary agent is 1 micron～10 microns, and proportion is 1g/cm
3～1.5g/cm
3, specific refractory power is 1.4～1.6, water content is lower than 5%.
9. anti-scratching flat top pre-coating film according to claim 3, is characterized in that, described levelling wetting agent is at least one being selected from polysiloxane or the unmodified polysiloxane of ethanol, Virahol, modification.
10. anti-scratching flat top pre-coating film according to claim 3, is characterized in that, described defoamer is to be selected from least one of polydimethylsiloxane, ethanol and polypropylene glycerol aether.
11. anti-scratching flat top pre-coating films according to claim 3, is characterized in that, described film coalescence aid is to be selected from least one of N-Methyl pyrrolidone, lauryl alcohol ester, ethylene glycol and diethylene glycol monobutyl ether.
12. anti-scratching flat top pre-coating films according to claim 3, is characterized in that, described crosslinking and curing agent for be selected from polyfunctionality aziridine, polycarbodiimide, HDI tripolymer and HDI-IPDI compound trimerical at least one.
13. anti-scratching flat top pre-coating films according to claim 1, is characterized in that, described middle layer is formed by polymine.
14. anti-scratching flat top pre-coating films according to claim 1, is characterized in that, described hot melt adhesive layer is to be formed by least one that is selected from ethylene-vinyl acetate, Low Density Polyethylene, ethylene-propylene acetoacetic ester and ethylene-methyl acrylate.
15. anti-scratching flat top pre-coating films according to claim 1, it is characterized in that, the thickness of described anti-scratching flat top base material is between 13 microns～110 microns, the thickness in described middle layer is between 0.01 micron～0.03 micron, and the thickness of described hot melt adhesive layer is between 25 microns～100 microns.
16. anti-scratching flat top pre-coating films according to claim 15, it is characterized in that, the thickness of described anti-scratching flat top base material is between 13 microns～85 microns, the thickness in described middle layer is between 0.01 micron～0.02 micron, and the thickness of described hot melt adhesive layer is between 30 microns～100 microns.
17. anti-scratching flat top pre-coating films according to claim 1, is characterized in that, the thickness of described polymer film layer is between 12 microns to 100 microns, and the thickness of described anti-scratching flat top coating is between 1 micron～10 microns.
Prepare the method for anti-scratching flat top pre-coating film described in claim 1～17 any one for 18. 1 kinds, it is characterized in that, comprising: the upper surface of anti-scratching flat top base material is carried out to corona treatment;
Upper surface at the anti-scratching flat top base material through corona treatment forms middle layer;
The dry anti-scratching flat top base material that is formed with middle layer under 85 degrees Celsius～95 degrees Celsius; And
Utilize forcing machine, on the middle layer through super-dry, form hot melt adhesive layer, to obtain described anti-scratching flat top pre-coating film.
19. methods according to claim 18, is characterized in that, described anti-scratching flat top base material obtains by the following method:
Polymer film layer is provided, and described polymer film layer is formed by least one that is selected from Biaxially oriented polypropylene film (BOPP), biaxial stretching polyester and biaxial tension nylon;
Lower surface by anti-scratching flat top-coat varnish roller coat at described polymer film layer, to form anti-scratching flat top coating; And
Carry out forming described anti-scratching flat top base material after drying treatment.
20. methods according to claim 18, is characterized in that, after corona treatment, the dyne value of described anti-scratching flat top base material is 36dyne～54dyne.
21. methods according to claim 18, it is characterized in that, described middle layer is to form by the surface-coated polyethyleneimine: amine aqueous solution of the anti-scratching flat top base material through corona treatment, wherein, the solid content of described polyethyleneimine: amine aqueous solution is 0.5～1.5 % by weight, and the usage quantity of described polyethyleneimine: amine aqueous solution is 0.01g/m
2.
22. methods according to claim 18, is characterized in that, forming in the process of hot melt adhesive layer, apply ozone to described anti-scratching flat top base material.
23. methods according to claim 22, is characterized in that, the concentration of described ozone is 40 volume %, and the gas flow of described ozone is 3.5SCXFM.
24. methods according to claim 18, is characterized in that, after forming hot melt adhesive layer, further carry out the second corona treatment, are more than 50dyne to make the surperficial dyne value of described hot melt adhesive layer.
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| CN201410141550.5A CN103965799A (en) | 2013-04-09 | 2014-04-09 | Scratch resistant sub-gloss pre-coated film and preparation method thereof |
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| CN201320175279 | 2013-04-09 | ||
| CN201320175279.8 | 2013-04-09 | ||
| CN201310121822.0 | 2013-04-09 | ||
| CN201310121822 | 2013-04-09 | ||
| CN201410141550.5A CN103965799A (en) | 2013-04-09 | 2014-04-09 | Scratch resistant sub-gloss pre-coated film and preparation method thereof |
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| CN201420171107.8U Expired - Lifetime CN204174147U (en) | 2013-04-09 | 2014-04-09 | Anti-scratching flat top pre-coating film |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104910827A (en) * | 2015-07-14 | 2015-09-16 | 潮安新纪源实业有限公司 | Pre-coated film, preparation method thereof and printed matter |
| CN105176429A (en) * | 2015-07-14 | 2015-12-23 | 潮安新纪源实业有限公司 | Anti-wear matt pre-coating film, preparation method and applications thereof |
| CN105482728A (en) * | 2015-12-04 | 2016-04-13 | 张家港保税区康得菲尔实业有限公司 | Scratch resistant precoating film |
| CN108624254A (en) * | 2017-03-23 | 2018-10-09 | 北京康得新功能材料有限公司 | A kind of mute face scratch resistance film and preparation method thereof with high surface energy |
| CN108690516A (en) * | 2018-05-30 | 2018-10-23 | 惠州艺都影像科技有限公司 | A kind of protective film of curved surface elements and preparation method thereof |
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| CN111040600A (en) * | 2019-12-23 | 2020-04-21 | 东莞市涂芭新材料有限公司 | Water-based scratch-resistant full-matte solid-color wood coating and preparation method thereof |
| CN113681947A (en) * | 2021-09-22 | 2021-11-23 | 江苏新义薄膜有限公司 | Scratch-resistant BOPP film and preparation method and preparation device thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996016799A1 (en) * | 1994-12-02 | 1996-06-06 | Mobil Oil Corporation | Heat sealable multilayer film containing polyvinyl alcohol layer |
| WO2011112548A2 (en) * | 2010-03-08 | 2011-09-15 | Saint-Gobain Performance Plastics Corporation | Improving adhesion in ectfe/polyester co-extruded structures using tie layers |
| CN102604523A (en) * | 2012-03-20 | 2012-07-25 | 北京康得新复合材料股份有限公司 | Water-based flat marproof paint for BOPP (biaxially-oriented polypropylene) films and preparation method thereof |
| CN102732174A (en) * | 2012-06-26 | 2012-10-17 | 北京康得新复合材料股份有限公司 | Pre-coating film and preparation method for the same |
-
2014
- 2014-04-09 CN CN201410141550.5A patent/CN103965799A/en active Pending
- 2014-04-09 CN CN201420171107.8U patent/CN204174147U/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996016799A1 (en) * | 1994-12-02 | 1996-06-06 | Mobil Oil Corporation | Heat sealable multilayer film containing polyvinyl alcohol layer |
| WO2011112548A2 (en) * | 2010-03-08 | 2011-09-15 | Saint-Gobain Performance Plastics Corporation | Improving adhesion in ectfe/polyester co-extruded structures using tie layers |
| CN102604523A (en) * | 2012-03-20 | 2012-07-25 | 北京康得新复合材料股份有限公司 | Water-based flat marproof paint for BOPP (biaxially-oriented polypropylene) films and preparation method thereof |
| CN102732174A (en) * | 2012-06-26 | 2012-10-17 | 北京康得新复合材料股份有限公司 | Pre-coating film and preparation method for the same |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104910827A (en) * | 2015-07-14 | 2015-09-16 | 潮安新纪源实业有限公司 | Pre-coated film, preparation method thereof and printed matter |
| CN105176429A (en) * | 2015-07-14 | 2015-12-23 | 潮安新纪源实业有限公司 | Anti-wear matt pre-coating film, preparation method and applications thereof |
| CN105482728A (en) * | 2015-12-04 | 2016-04-13 | 张家港保税区康得菲尔实业有限公司 | Scratch resistant precoating film |
| CN105482728B (en) * | 2015-12-04 | 2018-10-12 | 张家港保税区康得菲尔实业有限公司 | A kind of scratch resistance pre-coating film |
| CN108624254A (en) * | 2017-03-23 | 2018-10-09 | 北京康得新功能材料有限公司 | A kind of mute face scratch resistance film and preparation method thereof with high surface energy |
| CN108624254B (en) * | 2017-03-23 | 2020-12-22 | 张家港保税区康得菲尔实业有限公司 | Matte scratch-resistant film with high surface energy and preparation method thereof |
| CN108690516A (en) * | 2018-05-30 | 2018-10-23 | 惠州艺都影像科技有限公司 | A kind of protective film of curved surface elements and preparation method thereof |
| CN108690516B (en) * | 2018-05-30 | 2021-06-22 | 广东艺都科技有限公司 | Protective film of curved surface element and preparation method thereof |
| CN109735244A (en) * | 2019-01-03 | 2019-05-10 | 广东新纪源复合材料股份有限公司 | A kind of frosted pre-coating film and preparation method thereof |
| CN111040600A (en) * | 2019-12-23 | 2020-04-21 | 东莞市涂芭新材料有限公司 | Water-based scratch-resistant full-matte solid-color wood coating and preparation method thereof |
| CN113681947A (en) * | 2021-09-22 | 2021-11-23 | 江苏新义薄膜有限公司 | Scratch-resistant BOPP film and preparation method and preparation device thereof |
| CN115232576A (en) * | 2022-07-27 | 2022-10-25 | 广东汇齐新材料有限公司 | Hot melt adhesive film containing anti-scratch coating and preparation method thereof |
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Application publication date: 20140806 |