CN204174147U - Anti-scratching flat top pre-coating film - Google Patents
Anti-scratching flat top pre-coating film Download PDFInfo
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- CN204174147U CN204174147U CN201420171107.8U CN201420171107U CN204174147U CN 204174147 U CN204174147 U CN 204174147U CN 201420171107 U CN201420171107 U CN 201420171107U CN 204174147 U CN204174147 U CN 204174147U
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- flat top
- scratching
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- 238000006748 scratching Methods 0.000 title claims abstract description 119
- 238000000576 coating method Methods 0.000 title claims abstract description 88
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- 239000010410 layer Substances 0.000 claims abstract description 95
- 239000000463 material Substances 0.000 claims abstract description 79
- 239000004831 Hot glue Substances 0.000 claims abstract description 36
- 229920006254 polymer film Polymers 0.000 claims description 18
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- 238000000034 method Methods 0.000 abstract description 23
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- 238000007639 printing Methods 0.000 abstract description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract description 2
- 239000010931 gold Substances 0.000 abstract description 2
- 229910052737 gold Inorganic materials 0.000 abstract description 2
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 23
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 23
- 239000002131 composite material Substances 0.000 description 20
- 238000003851 corona treatment Methods 0.000 description 18
- 239000005038 ethylene vinyl acetate Substances 0.000 description 15
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 14
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- 230000003678 scratch resistant effect Effects 0.000 description 6
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- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 4
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- 238000007766 curtain coating Methods 0.000 description 4
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- 238000003306 harvesting Methods 0.000 description 4
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- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 3
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- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
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- QLZJUIZVJLSNDD-UHFFFAOYSA-N 2-(2-methylidenebutanoyloxy)ethyl 2-methylidenebutanoate Chemical compound CCC(=C)C(=O)OCCOC(=O)C(=C)CC QLZJUIZVJLSNDD-UHFFFAOYSA-N 0.000 description 2
- NOWKCMXCCJGMRR-UHFFFAOYSA-N Aziridine Chemical compound C1CN1 NOWKCMXCCJGMRR-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
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- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- LJRSZGKUUZPHEB-UHFFFAOYSA-N 2-[2-(2-prop-2-enoyloxypropoxy)propoxy]propyl prop-2-enoate Chemical compound C=CC(=O)OC(C)COC(C)COC(C)COC(=O)C=C LJRSZGKUUZPHEB-UHFFFAOYSA-N 0.000 description 1
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 description 1
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- 239000005058 Isophorone diisocyanate Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 description 1
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- JCGNDDUYTRNOFT-UHFFFAOYSA-N oxolane-2,4-dione Chemical compound O=C1COC(=O)C1 JCGNDDUYTRNOFT-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to a kind of anti-scratching flat top pre-coating film.This anti-scratching flat top pre-coating film comprises anti-scratching flat top base material, middle layer and hot melt adhesive layer, and described middle layer is formed between described anti-scratching flat top base material and described hot melt adhesive layer.Printed matter prepared by the anti-scratching flat top pre-coating film overlay film adopting the utility model to provide can not only provide a kind of elegance, steady perception, and pre-coating film outside surface presents excellent post-press finishing performance, can carry out easily as UV printing, gold stamping etc. further processes.
Description
Technical field
The utility model belongs to printing film coating technique field, relates 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 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, soft to people, deep sensation, but, use the wrapping material of sub-light pre-coating film process transport and normal use procedure in usually because of with hard object contact, produce under external force and scratch or/and cut, affect the attractive in appearance of wrapping material.
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 aralkyl modified poly-methyl alkyl silicon solution of mass ratio 48 ~ 52%, wax emulsion, thickening material and sanitas.But the coating disclosed in 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 Homogeneous phase mixing are obtained coating; Then coating is coated in 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 biaxially oriented polyester film surface wear-resistant scratch-resistant coating disclosed in CN101564720 needs to carry out ultra-violet curing.At present, in pre-coating film industry, the scratch resistance of increasing high-end customer to sub-light pre-coating film claims, and in order to tackle this market demand, exploitation anti-scratching flat top pre-coating film is extremely urgent.
Utility model content
The utility model is intended to one of solve the problems of the technologies described above at least to a certain extent.For this reason, an object of the present utility model is to propose a kind of sub-light pre-coating film with adhesion strength.
In one of the present utility model, the utility model proposes a kind of anti-scratching flat top pre-coating film.According to embodiment of the present utility model, this sub-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 specific embodiment of the utility model, 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 and support scratch resistant ability preferably, reduces the probability that cut produces in carrying and use procedure, keeps the perfect outward appearance of printed matter.This pre-coating film maintains higher surface tension simultaneously, and its sub-light and haze can give printed matter elegance, steady perception, and improving product quality, meets the demand of pre-coating film industry high-end customer.
In addition, in order to more clearly describe the utility model, this document describes a kind of method for the preparation of above-mentioned anti-scratching flat top pre-coating film.According to embodiment of the present utility model, the method comprises: carry out corona treatment to 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 being formed with middle layer under 85 degrees Celsius ~ 95 degrees Celsius; And utilize forcing machine, the middle layer through super-dry forms hot melt adhesive layer, to obtain anti-scratching flat top pre-coating film.Wherein, according to specific embodiment of the utility model, described anti-scratching flat top base material obtains by the following method: provide polymer film layer, and described polymer film layer is formed by least one being selected from Biaxially oriented polypropylene film (BOPP), biaxial stretching polyester and biaxial tension nylon; By the lower surface of anti-scratching flat top-coat varnish roller coat at described polymer film layer, to form anti-scratching flat top coating; And after carrying out drying treatment, form described anti-scratching flat top base material.The pre-coating film obtained by the method can be provided and support scratch resistant ability preferably, reduces the probability that cut produces in carrying and use procedure, keeps the perfect outward appearance of printed matter.Pre-coating film simultaneously maintains higher surface tension, and its sub-light and haze 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 utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the anti-scratching flat top pre-coating film section structure schematic diagram according to the utility model embodiment, 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
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In first aspect of the present utility model, the utility model proposes a kind of anti-scratching flat top pre-coating film.According to embodiment of the present utility model, with reference to Fig. 1, this sub-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 embodiment of the present utility model, anti-scratching flat top base material 1, middle layer 2 are identical with the width of hot melt adhesive layer 3.According to specific embodiment of the utility model, 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.Can provide preferably to scratch resistant ability according to the anti-scratching flat top pre-coating film that the utility model embodiment provides, in carrying and use procedure, reduce the probability that cut produces, keep the perfect outward appearance of printed matter.This pre-coating film maintains higher surface tension simultaneously, and its sub-light and haze can give printed matter elegance, steady perception, and improving product quality, meets the demand of pre-coating film industry high-end customer.
According to embodiment of the present utility model, be made up of Biaxially oriented polypropylene film (BOPP) (BOPP), biaxial stretching polyester (BOPET) or biaxial tension nylon (BOPA) polymer film layer 4.According to embodiment of the present utility model, 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 embodiment of the present utility model, anti-scratching flat top coating 5 is by being formed the lower surface of scratch resistance varnish application in described polymer film layer 4, 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 and crosslinking and curing agent.According to embodiment of the present utility model, scratch resistance varnish comprises further: 1 ~ 5 weight part film coalescence aid.According to embodiment of the present utility model, the type of anti-scratching flat top-coat varnish is also not particularly limited, can be water-based also can be solvent type.
According to embodiment of the present utility model, above-mentioned polyurethane dispersions be selected from acrylic acid modified polyurethane dispersions, the polyurethane dispersions of polyester modification, polycarbonate modified polyurethane dispersions and aliphatic modified polyurethane dispersions one of at least.According to example of the present utility model, the solid content of polyurethane dispersions is 20 ~ 40 % by weight, and the mass percentage of hydroxyl is 1 ~ 4 % by weight.The polyurethane dispersions that the utility model adopts is the main film forming substance of anti-scratching flat top coating, require that there is higher hydroxyl and (or) carboxyl-content, for with solidifying agent generation crosslinking reaction, certain substrate wetting and film-forming properties will be had simultaneously.
According to embodiment of the present utility model, above-mentioned scratching resistant is silicon-dioxide, silicone resin, methyl methacrylate powder (PMMA), PE wax powder or PTFE wax powder, and wherein, the median size of scratching resistant is 1 micron ~ 10 microns, fusing point is more than 110 DEG C, and proportion is 0.9g/cm
3~ 1.1g/cm
3.The utility model adopt scratching resistant easily disperse, thermostability and smoothness 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 increase the smoothness of coatingsurface simultaneously, reactive force can be distributed to larger region when being subject to External Force Acting, also can play scratch resistant object.
According to embodiment of the present utility model, above-mentioned sub-light auxiliary agent is silicon-dioxide, micronization wax or 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, and water content is lower than 5%.The sub-light auxiliary agent that the utility model 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 embodiment of the present utility model, above-mentioned wetting agent is ethanol, Virahol, the polysiloxane of modification or unmodified polysiloxane.This wetting agent can improve the wetting ability of scratch resistance varnish on BOPP, BOPET or BOPA surface, improves coating and the bonding force between BOPP, BOPET or BOPA, coatingsurface also can be made more smooth, fine and close simultaneously.
According to embodiment of the present utility model, above-mentioned defoamer is polydimethylsiloxane, ethanol or polypropylene glycerol aether.The defoamer that the utility model adopts can eliminate the small bubbles because high-speed stirring and crosslinking reaction etc. are formed, and eliminates bubble to the impact of appearance of coat.
According to embodiment of the present utility model, above-mentioned film coalescence aid is N-Methyl pyrrolidone, lauryl alcohol ester, ethylene glycol or diethylene glycol monobutyl ether.The film coalescence aid that the utility model adopts can improve the film forming properties of polyurethane dispersions, helps its film forming, and after film forming, film coalescence aid volatilization, can not affect the performance of coating.
According to embodiment of the present utility model, above-mentioned crosslinking and curing agent is polyfunctionality aziridine, polycarbodiimide, HDI tripolymer or HDI-IPDI compound tripolymer.The crosslinking and curing agent that the utility model adopts can with the hydroxyl in polyurethane dispersions and carboxyl generation crosslinking reaction, thus improve the hardness of paint film and it is to the sticking power of base material.
According to embodiment of the present utility model, middle layer 2 is made up of polymine.According to embodiment of the present utility model, hot melt adhesive layer 3 is made up of ethylene-vinyl acetate (EVA), Low Density Polyethylene (LDPE), ethylene-ethylacrylate (EEA) or ethylene-methyl acrylate (EMA).According to example of the present utility model, middle layer 2 and hot melt adhesive layer 3 are evenly coated on the surface of anti-scratching flat top centralized procurement successively.
According to an example of the present utility model, 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 utility model, 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 order to more clearly describe the utility model, this document describes a kind of method for the preparation of above-mentioned anti-scratching flat top pre-coating film.According to the utility model embodiment, the method comprises: carry out corona treatment to 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 being formed with middle layer under 85 degrees Celsius ~ 95 degrees Celsius; And utilize forcing machine, the middle layer through super-dry forms hot melt adhesive layer, to obtain anti-scratching flat top pre-coating film.Wherein, according to specific embodiment of the utility model, provide polymer film layer, described polymer film layer is made up of at least one being selected from Biaxially oriented polypropylene film (BOPP), biaxial stretching polyester and biaxial tension nylon; By the lower surface of anti-scratching flat top-coat varnish roller coat at described polymer film layer, to form anti-scratching flat top coating; And after carrying out drying treatment, form described anti-scratching flat top base material.The pre-coating film obtained by the method can be provided and support scratch resistant ability preferably, reduces the probability that cut produces in carrying and use procedure, keeps the perfect outward appearance of printed matter.Pre-coating film simultaneously maintains higher surface tension, and its sub-light and haze can give printed matter elegance, steady perception, and improving product quality, meets the demand of pre-coating film industry high-end customer.
According to embodiment of the present utility model, common BOPP, BOPET or BOPA polymer film layer produces at the outside surface of film the anti-scratching flat top coating that one deck uniform colorless is poor, sticking power is good by coating process, to obtain anti-scratching flat top film substrate.According to embodiment of the present utility model, after 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 levelling wetting agent, 0.1 ~ 0.5 weight part defoamer and 1 ~ 15 weight part crosslinking and curing agent and other components are mixed, may further include 1 ~ 5 weight part film coalescence aid as required, be coated with at BOPP, BOPET or BOPA polymeric film surface and be covered with anti-scratching flat top coating, 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 utility model, above-mentioned anti-scratching flat top base material is placed on unreeling machine, and is unreeled by air-expanding shaft.According to embodiment of the present utility model, carry out corona treatment to above-mentioned anti-scratching flat top substrate surface, 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 reaches 54dyne.
According to embodiment of the present utility model, by solid content be 5 ~ 10 % by weight polymine (PEI) aqueous solution be deployed into by thin up polymine (PEI) aqueous solution that solid content is 0.5 ~ 1.5 % by weight, stir and obtain middle layer materials.According to embodiment of the present utility model, middle layer is by being formed at the surface-coated aq. polyethyleneimine of the anti-scratching flat top base material through corona treatment, wherein, the solid content of described aq. polyethyleneimine is 0.5 ~ 1.5 % by weight, and the usage quantity of described aq. polyethyleneimine is 0.01g/m
2.The compound method of 0.5 ~ 1.5 % by weight aq. polyethyleneimine is also not particularly limited, according to example of the present utility model, can be that polymine (PEI) aqueous solution of 5 ~ 10 % by weight is deployed into by adding water polymine (PEI) aqueous solution that solid content is 0.5 ~ 1.5 % by weight by solid content.According to example of the present utility model, utilize drying plant dry under 85 degrees Celsius ~ 95 degrees Celsius, polymine (PEI) is made to be solidificated in anti-scratching flat top substrate surface, thus form the anti-scratching flat top base material with middle layer, to obtain the middle layer that thickness is about 0.01 micron ~ 0.03 micron.
According to embodiment of the present utility model, utilize forcing machine, the middle layer through super-dry forms hot melt adhesive layer, to obtain anti-scratching flat top pre-coating film.According to an example of the present utility model, will be loaded with the anti-scratching flat top base material of having dried polymine (PEI), and be sent to compound position by the deflector roll extruding 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 utility model, ozonizer is had on the side, compound position of extruding composite production line, the ozone produced by ozonizer is jetted the curtain coating of the hot melt adhesive layer extruded to forcing machine, the concentration of ozone is 40%, power 800W, gas flow is 3.5SCXFM, ozone makes hot melt adhesive layer surface produce some polar groups, then the anti-scratching flat top base material being loaded with polymine (PEI) combines with the extruding of hot melt adhesive curtain coating by the nip roller extruding composite production line compound position, form composite membrane, stretched again, cooling, after deburring, be admitted to thickness tester to detect.According to example of the present utility model, 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.
According to embodiment of the present utility model, beta-ray measurement instrument is utilized to measure the thickness of pre-coating film, after measurement by its result feedback to computer, the screw speed of computer control forcing machine and the die gap at die head position, to obtain the pre-coating film of thickness uniformity.
According to embodiment of the present utility model, after formation hot melt adhesive layer, carry out the second corona treatment further, to obtain a certain amount of polar group, make the surface dynes value of hot melt adhesive layer be more than 50dyne.
According to embodiment of the present utility model, utilize winder by the pre-coating film harvest coiled material after the second corona.
According to embodiment of the present utility model, according to demand, what the pre-coating film of winder harvest coiled material is cut into width needed for client and length cuts volume.
Embodiment 1
Prepare anti-scratching flat top BOPP base material
By 75 parts by weight of fatty race aqueous emulsion of polyurethane, (wherein the solid content of polyurethane dispersions is 20 % by weight, the mass percentage of hydroxyl is 1 % by weight, 5 weight part silicone cross ball-shaped micro powders (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), 2.5 weight part N-Methyl pyrrolidone (film coalescence aid) and the how crosslinked aziridine of 1 weight part (crosslinking and curing agent) mix in high-speed mixer, after filtration, the matt surface of commercially available sub-light BOPP film (specification is 15 μm × 1420mm × 12000m) is coated in by the mode of roller coat, anti-scratching flat top base material is formed after drying, its specification is 18 μm × 1420mm × 12000m.
Prepare anti-scratching flat top BOPP pre-coating film
This pre-coating film is coated with the PEI middle layer of 0.01 μm successively at the shining surfaces of above-mentioned anti-scratching flat top BOPP base material, the composite hot melt adhesive EVA layer of 25 μm.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 μm × 1400mm × 12000m.Its working method is as follows:
1) in the middle of material preparation: by solid content be 5 % by weight polymine (PEI) aqueous solution be deployed into polymine (PEI) aqueous solution that solid content is 0.95 % by weight, stir and obtain middle layer materials.
2) unreel: the anti-scratching flat top base material by fabric width being 1420mm, to be placed on unreeling machine and to be unreeled by air-expanding shaft; Its thickness is 18 μm.
3) front corona treatment: the anti-scratching flat top base material glossy surfaces by unreeling machine is carried out corona treatment, makes its dyne value reach 36dyne.
4) middle layer is applied: above-mentioned anti-scratching flat top base material is by silane coupling agent coating equipment, and at coating middle layer, corona treatment face materials, the usage quantity of middle layer material is 0.01g/m
2.
5) first is dry: the anti-scratching flat top base material utilizing drying plant will be coated with polymine (PEI) aqueous solution is dried, polymine (PEI) is made to 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 the deflector roll extruding composite production line, forcing machine extrudes EVA on anti-scratching flat top base material; Ozonizer is had on the side, compound position of extruding composite production line, the ozone produced by ozonizer is jetted the curtain coating of the hot melt adhesive EVA layer extruded to forcing machine, the concentration of ozone is 40 volume %, power 800W, gas flow is 3.5SCXFM, ozone makes EVA layer surface produce some polar groups, then the anti-scratching flat top base material being loaded with polymine (PEI) combines with the extruding of EVA casting films by the nip roller extruding composite production line compound position, form composite membrane, stretched, cooling again, after deburring, be admitted to thickness tester and detect; What use is 25 μm by the thickness of the extrusion capacity control hot melt adhesive layer regulating forcing machine.
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 screw speed of computer control forcing machine and the die gap at die head position, to obtain the pre-coating film of thickness uniformity.
8) corona treatment afterwards: corona treatment is carried out to hot melt adhesive EVA layer surface, to obtain a certain amount of polar group, makes its surface dynes value reach more than 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 mass percentage of hydroxyl is 3 % by weight, 1 weight account polyethylene wax scratching resistant (AQUACER1547, the fusing point of 1547 is 125 DEG C, non-volatile part is 35 % by weight), 10 parts by weight of silica matting 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 parts by weight of fatty races polyisocyanate curing agent (Z4470SN) mix in homogenizer, be coated on a surface of commercially available BOPET light film (specification is 12 μm × 1670mm × 12000m) by the mode of roller coat after filtration, anti-scratching flat top BOPET base material is formed after drying, its specification is 13 μm × 1670mm × 12000m.
Preparing this pre-coating film of anti-scratching flat top BOPET pre-coating film is be coated with the PEI middle layer of 0.02 μm successively at the shining surfaces of above-mentioned anti-scratching flat top BOPET base material, and the composite hot melt adhesive LDPE layer of 100 μm is formed.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 μm × 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 μm.
Embodiment 3
Prepare anti-scratching flat top BOPP base material
By 90 weight of polyester type polyurethane 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 the fusing point of 928 is 115 DEG C), 0.125 parts by weight of isopropyl alcohol (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, the matt surface of commercially available sub-light BOPP film (specification is 100 μm × 1420mm × 12000m) is coated in by the mode of roller coat, anti-scratching flat top base material is formed after drying, its specification is 110 μm × 1420mm × 12000m.
Prepare anti-scratching flat top BOPP pre-coating film
This pre-coating film is coated with the PEI middle layer of 0.03 μm successively at the shining surfaces of above-mentioned anti-scratching flat top BOPP base material, the composite hot melt adhesive EVA layer of 50 μm.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 μm × 1400mm × 12000m.Its working method is as follows:
1) in the middle of material preparation: by solid content be 5 % by weight polymine (PEI) aqueous solution be deployed into polymine (PEI) aqueous solution that solid content is 0.95 % by weight, stir and obtain middle layer materials.
2) unreel: the anti-scratching flat top base material by fabric width being 1420mm, to be placed on unreeling machine and to be unreeled by air-expanding shaft; Its thickness is 110 μm.
3) front corona treatment: the anti-scratching flat top base material glossy surfaces by unreeling machine is carried out corona treatment, makes its dyne value reach 36dyne.
4) middle layer is applied: above-mentioned anti-scratching flat top base material is by silane coupling agent coating equipment, and at coating middle layer, corona treatment face materials, the usage quantity of middle layer material is 0.01g/m
2.
5) first is dry: the anti-scratching flat top base material utilizing drying plant will be coated with polymine (PEI) aqueous solution is dried, polymine (PEI) is made to 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 the deflector roll extruding composite production line, forcing machine extrudes EVA on anti-scratching flat top base material; Ozonizer is had on the side, compound position of extruding composite production line, the ozone produced by ozonizer is jetted the curtain coating of the hot melt adhesive EVA layer extruded to forcing machine, the concentration of ozone is 40 volume %, power 800W, gas flow is 3.5SCXFM, ozone makes EVA layer surface produce some polar groups, then the anti-scratching flat top base material being loaded with polymine (PEI) combines with the extruding of EVA casting films by the nip roller extruding composite production line compound position, form composite membrane, stretched, cooling again, after deburring, be admitted to thickness tester and detect; The thickness of the extrusion capacity control hot melt adhesive layer by adjustment forcing machine used is the pressure of 50 μm of 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 screw speed of computer control forcing machine and the die gap at die head position, to obtain the pre-coating film of thickness uniformity.
8) corona treatment afterwards: corona treatment is carried out to hot melt adhesive EVA layer surface, to obtain a certain amount of polar group, makes its surface dynes value reach more than 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, the anti-scratching flat top pre-coating film adopting the present invention to prepare has good surface hardness, thus improves the ability of its surperficial scratch resistance, cut; Meanwhile, scratch resistance pre-coating film outside surface presents higher surface tension, directly can carry out UV printing, the further process such as gold stamping on surface.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " 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, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment when not departing from principle of the present utility model and aim, revising, replacing and modification in scope of the present utility model.
Claims (3)
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, wherein said anti-scratching flat top coating formation is in the lower surface of described polymer film layer
Wherein, the thickness of described anti-scratching flat top base material is between 13 microns ~ 110 microns, and 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.
2. anti-scratching flat top pre-coating film according to claim 1, 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 compound is between 30 microns ~ 100 microns.
3. anti-scratching flat top pre-coating film 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.
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| CN201420171107.8U CN204174147U (en) | 2013-04-09 | 2014-04-09 | Anti-scratching flat top pre-coating film |
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| CN201420171107.8U CN204174147U (en) | 2013-04-09 | 2014-04-09 | Anti-scratching flat top pre-coating film |
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| 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 |
| 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 |
| 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 |
| CN106883440A (en) * | 2017-03-23 | 2017-06-23 | 北京康得新功能材料有限公司 | A kind of mute face scratch resistance function pre-coating film 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 |
| CN111040600B (en) * | 2019-12-23 | 2021-09-14 | 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 |
| CN113681947B (en) * | 2021-09-22 | 2022-07-01 | 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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| WO1996016799A1 (en) * | 1994-12-02 | 1996-06-06 | Mobil Oil Corporation | Heat sealable multilayer film containing polyvinyl alcohol layer |
| US20110244241A1 (en) * | 2010-03-08 | 2011-10-06 | Aditya Ranade | 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 |
| CN102732174B (en) * | 2012-06-26 | 2013-12-18 | 北京康得新复合材料股份有限公司 | Pre-coating film and preparation method for same |
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Address after: Suzhou City, Jiangsu province 215634 Zhangjiagang City Environmental Protection New Material Industrial Park Road on the north side of Hong Kong, Hong Chen Hua Road West Patentee after: Jiangsu kangdexin composite materials Limited by Share Ltd. Address before: 102200, 26 Zhenxing Road, Beijing, Changping District Patentee before: BEIJING KANGDE XIN COMPOSITE MATERIAL Co.,Ltd. |
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