CN203881962U - Ultraviolet light curing optic hardened film and device for preparing ultraviolet light curing optic hardened film - Google Patents
Ultraviolet light curing optic hardened film and device for preparing ultraviolet light curing optic hardened film Download PDFInfo
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- CN203881962U CN203881962U CN201420145111.7U CN201420145111U CN203881962U CN 203881962 U CN203881962 U CN 203881962U CN 201420145111 U CN201420145111 U CN 201420145111U CN 203881962 U CN203881962 U CN 203881962U
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Abstract
The utility model belongs to the field of optic hardened films and relates to an ultraviolet light curing optic hardened film and a device for preparing the ultraviolet light curing optic hardened film. The coating thickness of an existing optic hardened film is uneven, as a result, a Newton ring phenomenon occurs, while, with the ultraviolet light curing optic hardened film and the preparing device thereof of the utility model adopted, the above situation can be avoided. The device includes an unwinding system, a base material surface dust-removal system, a coating fluid coating system, a traction and tension control system, an UV light curing stamping system and a winding system, wherein the UV light stamping system is composed of an ultra mirror roller, a front pressing roller, an adjusting roller, a vacuum adsorption roller and a UV light. The device provided by the utility model is simple in structure .The surface roughness of the hardened coating of the optic hardened film is smaller than or equal to 0.01 micron, so that Newton rings are basically invisible.
Description
Technical field
The invention belongs to optical hardening film technical field, relate in particular to a kind of equipment of optical hardening film and ultraviolet light polymerization cured film being made by this equipment prepared.
Background technology
In recent years, along with the fast development of planar movement display technique, the application of the equipment such as panel computer, smart mobile phone, vehicle mounted guidance, digital camera is more and more extensive.In the manufacture of these device display screens, to use optical hardening film, as ITO film and blow-out disc etc.; In use, the touch-screen of these equipment is wanted frequently to contact with user, for preventing scuffing, the wearing and tearing and dirty of screen, also will protect screen with optical hardening film.The optical hardening film of these application is generally by the transparent film substrate of height with coat its surperficial transparent hard layer and form.The thickness of hardened layer is generally at 1-10 μ m.When light enters after cured film, from the light of hardened layer upper surface and lower surface reflection, there is optical path difference and cause interference of light.Owing to there being interference of light, in certain specific angle, observer can see on screen rainbow line, affects visual effect.The principal element that causes optical path difference is the surface irregularity of the inconsistent and hardening coat of the refractive index of coating and the refractive index of base film, as at U.S. Patent application (publication number: US2006/0008596; Open day: on January 12nd, 2006, and, publication number: US2008/0180801; Open day: on July 31st, 2008), have that to mention hardening coat surface irregularity inhomogeneous and cause the phenomenon of interfering line.The flatness of coating surface can represent by roughness, and in general, when the roughness of the coating surface of optical hardening film is less than 0.015 micron, the just basic resolution of human eye has not gone out by the inhomogeneous interference line causing of coating.
Existing optical hardening film is generally produced by solvent-borne type wet type coating method, and the homogeneity of coating thickness is mainly relevant with the factors such as diffusion dry run of the coating precision of dispense tip, the levelability of masking liquid and solvent.For improving the coating homogeneity of cured film coating surface, can set about from coating apparatus and coating fluid two aspects of filling a prescription.In recent years, it is more and more general that the nick roller coat cloth of application of advanced and slit coating technique are produced optical hardening film in conjunction with advanced dry technology, auxiliary agent manufacturer also constantly releases new levelling agent, make the levelling better effects if of coating fluid, coating uniformity also constantly improves, as at Chinese patent application (publication number: CN101973149A; Open day: the planarization that solvent combination and the levelling agent that on February 16th, 2011), employing is optimized improves coating surface is to improve the visual effect of cured film.
But the unevenness of improving hardening coat by coating apparatus and levelling agent is limited, can not fundamentally eliminate the unevenness of coating thickness, reason is just that wet type coating relates to the volatilization process of solvent in masking liquid.In the coating fluid using in wet type coating process, the content of solvent is generally more than 50%.In coating production dry run, masking liquid absorbs heat, and solvent just constantly diffuses out to coating outside surface from coating resin, and the diffusion process of this solvent can cause perturbing of coating.Continuous dispensing volatile along with solvent, the viscosity of coating also constantly raises, mobility variation, solvent can not coated levelling again from the inner crateriform microcosmic out-of-flatness causing toward external diffusion of coating, and the surfaceness of the ultraviolet light polymerization cured film of being produced by wet type solvent method is difficult to be less than the level of 0.015 micron.Therefore, adopt wet type coating process be difficult to solve via dispense tip crawling, coating fluid levelling is insufficient and the factor such as sovent diffusion volatilization causes coating thickness inhomogeneous, thereby the rainbow line problem producing.
Summary of the invention
In order to solve the inhomogeneous and rainbow line problem that causes of the coating thickness of the optical hardening film that solvent method produces, the invention provides and a kind ofly for the preparation of the ultraviolet light without rainbow line (UV), solidify the equipment of optical hardening film and the ultraviolet light polymerization optical hardening film that utilizes this equipment to prepare.Device structure provided by the invention is simple, easy operating, utilize the ultraviolet light polymerization optical hardening film that this equipment makes to observe under 3 primary light source of standard, rainbow line is substantially invisible, and the masking liquid that the preparation technology of cured film provided by the invention uses is solvent-free coating fluid, the solvent-free discharge of production run, impact on environment is little, more environmental protection.Ultraviolet light polymerization optical hardening film in the application, also referred to as ultraviolet light polymerization cured film, optical hardening film, or referred to as cured film.Film in the application also can be described as film.
In order to reach above-mentioned technical purpose, the invention provides following technical proposals:
The invention provides a kind of equipment that solidifies optical hardening film for the preparation of ultraviolet light (UV), described equipment comprises the system of unreeling, substrate surface dust pelletizing system, coating fluid coating system, traction and tension control system, UV photocuring impression system and winding system; Described UV photocuring impression system forms by surpassing mirror roller, front pressure roller, dancer rools, vacuum suction roller and UV lamp.
Described optical hardening film comprises optical-grade transparent base material and coating, in preparation process, base material is unreeled by the system of unreeling, after the dedusting of substrate surface dust pelletizing system, enter coating fluid coating system, coating system is applied to coating fluid on the surface of base material, base material process UV photocuring impression system with coating fluid, coating fluid solidifies and impression through UV, form coating, last, optical hardening film is through winding system rolling, described traction and tension control system comprise carry-over pinch rolls and jockey pulley, and carry-over pinch rolls and jockey pulley are arranged on the appropriate location of equipment.
Further, in above-mentioned equipment, described coating fluid coating system comprises slot extrusion dies and back flow roll, and described traction and tension control system comprise jockey pulley and carry-over pinch rolls, and described optical hardening film comprises base material and coating; Described base material is unreeled by the system of unreeling, after the dedusting of substrate surface dust pelletizing system, enter back flow roll, coating fluid is applied on the surface of base material through slot extrusion dies gluing, base material with coating fluid enters UV photocuring impression system through back flow roll, jockey pulley, base material with coating fluid successively passes through front pressure roller, super mirror roller and UV lamp, dancer rools, coating fluid solidifies and the impression of super mirror roller through UV lamp, form coating, gained optical hardening film is through vacuum suction roller, carry-over pinch rolls, by winding system rolling.
Further, in the said equipment, the diameter of described super mirror roller is 100-500 millimeter, and the diameter of described front pressure roller is less than at least 50 millimeters of super mirror rollers, and described dancer rools diameter is 60-120 millimeter, and the diameter of described vacuum suction roller is 60-150 millimeter.
The above-mentioned equipment for the preparation of ultraviolet light polymerization cured film, UV photocuring impression system wherein can make ultraviolet light polymerization hardening coat obtain even curface, and coating fluid coating system wherein can make to solidify front hardening coat and have uniform surface.Utilize the surfaceness of the hardening coat that this equipment makes to be less than or equal to 0.010 micron.
Further, the diameter of the super mirror roller in above-mentioned equipment is 100-500 millimeter, and described super mirror roller is selected from stainless steel rider, chrome-plated roller, nickel plating roller or bag glass roll, and surfaceness is less than or equal to 0.01 micron.
The diameter of described super mirror roller, is preferably 200-300 millimeter.The surfaceness of described super mirror roller is preferably less than or equal to 0.006 micron, is more preferably less than or equals 0.005 micron.The concentricity of described super mirror roller is less than or equal to 5 microns, and the surface temperature difference of roller is less than 1 ℃.Described super mirror roller is preferably bag glass roll.
Further, the diameter of the vacuum suction roller in above-mentioned equipment is 60-150 millimeter, and minimum vacuum degree reaches 0.005Mpa.Described vacuum suction roller is by servo motor driven.
Further, the material of the front pressure roller in above-mentioned equipment is silica gel or polyurethane, and the diameter of roller is less than at least 50 millimeters of super mirror rollers, and surfaceness is less than or equal to 0.05 micron.The surfaceness of described front pressure roller is preferably less than or equal to 0.025 micron, and shore hardness is 60-90 degree, is preferably 75-80 degree.
Further, the dancer rools in above-mentioned equipment is metal chrome-plated roller, and roller diameter is 60-120 millimeter, and roll surface roughness is less than or equal to 0.05 micron.Described dancer rools surfaceness is preferably less than or equal to 0.01 micron, and the concentricity of roller is less than or equal to 5 microns; Dancer rools can regulate up and down, with this, controls the cornerite of UV photocuring rear film and super mirror roller.
Described UV lamp will adopt the alap stepless lamp system of heat, to reduce the impact of UV light temperature on the thermal deformation of film substrate.The intensity of illumination of electrodeless UV lamp system is 400-2000mJ/cm
2, be preferably 600-1200mJ/cm
2, 600-800mJ/cm more preferably
2, for example, FUSION F300S series Non-polarized lamp.
Further, the coating fluid coating system in above-mentioned equipment comprises slot extrusion dies and accurate back flow roll; Described back flow roll material is steel rider chromium plating or nickel, and the surfaceness of coating is less than or equal to 0.01 micron.
For guaranteeing the degree of accuracy of the thickness of hardening coat, the flow control accuracy of described slot extrusion dies is less than or equals 1%.
The described system that unreels and winding system are servo motor driven, and speed departure is less than or equal to 0.1%; The dust pelletizing system of described substrate surface is contact or contactless dust pelletizing system, is preferably contactless dust pelletizing system.
Described traction and tension control system comprise jockey pulley (tension control roll) and carry-over pinch rolls.Described jockey pulley control accuracy is less than or equal to 1%; Described carry-over pinch rolls are by servo motor driven, and speed departure is less than or equal to 0.1%.
Further, in equipment for the preparation of ultraviolet light polymerization cured film provided by the invention, the diameter of described super mirror roller is 100-500 millimeter, and described super mirror roller is selected from stainless steel rider, chrome-plated roller, nickel plating roller or bag glass roll, and surfaceness is less than or equal to 0.01 micron; The diameter of described vacuum suction roller is 60-150 millimeter, and minimum vacuum degree reaches 0.005Mpa; The material of described front pressure roller is silica gel or polyurethane, and the diameter of roller is less than at least 50 millimeters of super mirror rollers, and surfaceness is less than or equal to 0.05 micron; Described dancer rools is metal chrome-plated roller, and roller diameter is 60-120 millimeter, and roll surface roughness is less than or equal to 0.05 micron; Described coating fluid coating system comprises slot extrusion dies and back flow roll; Described back flow roll material is steel rider chromium plating or nickel, and the surfaceness of coating is less than or equal to 0.01 micron.
Utilize the hardening coat surfacing of the ultraviolet light polymerization cured film that the said equipment makes, the roughness on surface is less than or equal to 0.01 micron, substantially can not see rainbow line phenomenon.
The present invention also provides a kind of ultraviolet light polymerization optical hardening film, and described cured film comprises transparent base and the ultraviolet light polymerization hardening coat of coating base material upper surface, and described hardening coat surfaceness is less than or equal to 0.01 micron; The thickness of described transparent base is 30-500 μ m, and the thickness of described ultraviolet light polymerization hardening coat is 1-15 μ m.Described ultraviolet light polymerization cured film utilizes the said equipment preparation provided by the invention, and preparation method comprises the steps:
(1) ultraviolet light polymerization coating fluid is added to the coating fluid coating system of equipment;
(2) transparent base is loaded onto to board, starting outfit and UV lamp;
(3) linear velocity is made as to 5-15 meter per second, UV intensity of illumination is 400-2000mJ/cm
2; By dancer rools, the cornerite of transparent base and super mirror roller is adjusted to 140-160 degree;
(4) coating fluid is applied on the transparent base through dust pelletizing system through slot extrusion dies gluing by the flow of design, the thickness of described ultraviolet light polymerization coating fluid coating is 1-15 μ m;
(5) with transparent base rolling after UV impression solidifies of coating fluid, obtain UV photocuring cured film.
In above-mentioned steps (4), the flow of coating fluid is by the thickness of coating, the linear velocity in the fabric width of coating and step (3) calculates, and computing formula is: the thickness * fabric width * linear velocity of flow=coating.
Further, above-mentioned ultraviolet light polymerization cured film, in its preparation method,
(3) linear velocity is made as to 10 meter per seconds, UV intensity of illumination is 600mJ/cm
2; By dancer rools, the cornerite of transparent base and super mirror roller is adjusted to 150 degree;
(4) coating fluid is applied on the transparent base through dust pelletizing system through slot extrusion dies gluing by the flow of design, the thickness of described ultraviolet light polymerization coating fluid coating is 3-5 μ m.
Further, above-mentioned coating fluid coating system is heated to 55-65 ℃ by coating fluid, to reduce the viscosity of coating fluid, makes coating fluid be more convenient for being coated with, the surface more smooth of coating.
Described ultraviolet light polymerization hardening coat is formed through UV photocuring by the UV photocuring coating fluid of coating on transparent base.In above-mentioned UV photocuring coating fluid, do not contain solvent, can not produce the insufficient and solvent evaporates of coating fluid levelling, thereby the coating thickness causing is uneven, then occurs the phenomenon of rainbow line, above-mentioned coating fluid is also referred to as solvent-free UV photocuring coating fluid.
Further, above-mentioned ultraviolet light polymerization cured film, wherein, described ultraviolet light polymerization coating fluid is comprised of 30-70 weight portion UV light-cured resin, the reactive diluent of 5-30 weight portion, the auxiliary agent of the light trigger of 2-10 weight portion and 0.1-2 weight portion.
Described UV light-cured resin is selected from the combination of a kind of in urethane acrylate (PUA), epoxy acrylate and polyester acrylate or at least two kinds.Described UV light-cured resin is oligomer.
Preferably, described UV light-cured resin is low-viscosity polyester acrylate, two official's aliphatic urethane acrylates, six functional groups aliphatic urethane acrylate, bisphenol-A epoxy diacrylate, aliphatic urethane diacrylate, three-functionality-degree urethane acrylate, six functionality urethane acrylates.
Described reactive diluent is the undersaturated monomer of the crosslinkable olefinic of UV with aliphatics or alicyclic group; Described auxiliary agent is the combination of a kind of in defoamer and wetting dispersing agent or at least two kinds.
Preferably, described reactive diluent is low molecular weight propylene acid esters and methacrylate monomers.For example, hexanediyl ester (HDDA), dipentaerythritol acrylate (DPHA), tripropylene glycol diacrylate (TPGDA), pentaerythritol triacrylate (PETA), tetramethylol methane tetraacrylate, neopentylglycol diacrylate, hydroxyethyl acrylate, hydroxyethyl methylacrylate (HEMA), two-(methylacryoyloxyethyl) phosphate, glycidyl acrylate and glycidyl methacrylate, described reactive diluent also comprises functionalized silane, as 3-methacryloxypropyl trimethoxy silane.These reactive diluents can be used separately, also can at least two kinds of mixing use.Above-mentioned reactive diluent all can be bought on market, if hydroxyethyl methylacrylate is purchased from Mitsubishi Li Yang company, 2(2-ethoxy ethoxy) ethyl propylene acid esters is the SR256 that Guangzhou Sartomer Chemical Co., Ltd. produces.The Main Function of reactive diluent is the coating viscosity that regulates ultraviolet light polymerization coating fluid, makes it be beneficial to coating process, forms certain thickness ultraviolet light polymerization hardening coat.
Described light trigger is selected from 2-hydroxy-2-methyl phenyl-propane-1-ketone (1173), 1-hydroxy-cyclohexyl phenyl ketone (184), 2-methyl isophthalic acid-(4-methyl mercapto phenyl)-2-morpholinyl-1-acetone (907), benzoin dimethylether (651), 2,4,6(trimethylbenzoyl) diphenyl phosphine oxide (TPO) etc.; Described light trigger also comprises hydrogen-capture-type light initiator, as benzophenone (BP), 2-isopropyl thioxanthone (ITX) etc.Preferably, described light trigger is selected from 1-hydroxy-cyclohexyl phenyl ketone (184) and 2,4,6(trimethylbenzoyl) diphenyl phosphine oxide (TPO).Above-mentioned light trigger is product common on market, all can buy, if light trigger 184 is purchased from Hua Tai chemical company.
Described defoamer and wetting dispersing agent are product common on market.As the BYK-UV3500 of German Bi Ke chemical production.
Further, above-mentioned ultraviolet light polymerization cured film, wherein, described transparent base is selected from a kind of in polycarbonate (PC), polyethylene terephthalate (PET), polymethylmethacrylate (PMMA), polyamide (PA), polystyrene (PS), tygon (PE) or cellulose triacetate (TAC).
Described transparent base is optical-grade transparent base material.
The thickness of described transparent base is 30-500 μ m; The thickness of described ultraviolet light polymerization hardening coat is 1-15 μ m.Further, the thickness of described ultraviolet light polymerization hardening coat is 1.11-14.05 μ m.
Preferably, the thickness of described transparent base is 100-250 μ m.The thickness of described ultraviolet light polymerization hardening coat is 3-15 μ m.Further, the thickness of described ultraviolet light polymerization hardening coat is 3-5 μ m.
Preferably, described transparent base is polycarbonate (PC) or polyethylene terephthalate (PET).Above-mentioned transparent base can be bought from the market, as PET transparent base is preferably the A4300 optics level PET film that TOYOBO spins in Japanese Japan.
Further, above-mentioned ultraviolet light polymerization cured film, wherein, transparent base is optics level PET film, thickness is 30-188 micron, super mirror roller is chromium plating material or bag glass material, surfaceness is less than or equal to 0.005 or 0.006 micron, UV thin hardened layer is about 3.02-5.32 micron, in UV hardened layer, contain: 6 official's aliphatic urethane acrylates of 40-53 weight portion, two official's aliphatic urethane acrylates of 5-10 weight portion, the hydroxyethyl methylacrylate of 5-15 weight portion, the 2(2-ethoxy ethoxy of 2-5 weight portion) ethyl propylene acid esters, the trigger for optical solidification 184 of 6-7 weight portion, surface modifier BYK-UV3500 with 0.1-1 weight portion.
Further, above-mentioned ultraviolet light polymerization cured film, wherein, transparent base is optics level PET film, thickness is 30 microns, super mirror roller is chromium plating material, surfaceness is 0.006 micron, UV thin hardened layer is 3.17 microns, in UV hardened layer, contain: 6 official's aliphatic urethane acrylates of 40 weight portions (EBECRYL8254 of the special Chemical Manufacture of cyanogen), two official's aliphatic urethane acrylates of 10 weight portions, the hydroxyethyl methylacrylate of 15 weight portions, the 2(2-ethoxy ethoxy of 5 weight portions) ethyl propylene acid esters, the trigger for optical solidification 184 of 6 weight portions, surface modifier BYK-UV3500 with 1 weight portion.
The compound method of described ultraviolet light polymerization coating fluid is as follows:
UV light-cured resin is added in vacuum stirring still together with reactive diluent, under the condition vacuumizing, stir 2 hours, then add auxiliary agent, stir about 1 hour, finally add light trigger, continue to stir 1 hour to evenly, obtain after filtering solvent-free UV photocuring coating fluid.
Compared with prior art, the exquisiteness simple in structure of the equipment for the preparation of ultraviolet light polymerization optical hardening film provided by the invention, preparation technology is simple, easy operating, coating fluid coating is even, and the even lower hardening coat of coating thickness, the surfacing of the cured film making, makes rainbow line substantially invisible.The hardening coat coating fluid of the ultraviolet light polymerization cured film that the application provides is not containing solvent, little on the impact of environment, environmental protection more; And the transparent base cost that cured film is used is lower, make to utilize the cost of the ultraviolet light polymerization cured film that equipment provided by the invention prepares lower, than same kind of products at abroad, there is the larger market competitiveness.
Accompanying drawing explanation
Fig. 1 is the structural representation of UV photocuring optical hardening film provided by the invention;
Fig. 2 is the structural representation of the equipment for the preparation of ultraviolet light polymerization optical hardening film provided by the invention.
In Fig. 1,101 is transparent base, and 102 is UV photocuring hardening coat.In Fig. 2,1 for unreeling system, and 2 is transparent base, 3 is cleaning roller, and 4 is slot extrusion dies, and 5 is coating fluid coating back flow roll, 6 is the transparent base with coating fluid, and 7 is tension control roll, and 8 is front glue laminated roller, 9 is super mirror roller, and also referred to as UV roller platen, 10 is cornerite dancer rools, 11 is UV lamp, and 12 is UV photocuring cured film product, and 13 is vacuum suction roller, 14 is traction drive roller, and 15 is winding system.
Embodiment
As shown in Figure 1, UV photocuring cured film provided by the invention comprises transparent base 101 and UV photocuring hardening coat 102.
As shown in Figure 2, equipment for the preparation of ultraviolet light polymerization optical hardening film of the present invention comprises the system of unreeling 1, substrate surface dust pelletizing system (cleaning roller) 3, coating fluid coating system, traction and tension control system, UV photocuring impression system and winding system 15, and described coating fluid coating system is comprised of slot extrusion dies 4 and accurate back flow roll (coating fluid coating back flow roll) 5; Described traction and tension control system comprise tension control roll 7 and carry-over pinch rolls 14, described UV photocuring impression system forms by surpassing mirror roller 9, front pressure roller 8, cornerite dancer rools 10, vacuum suction roller 13 and UV lamp 11, described vacuum suction roller 13 can play draw simultaneously, 2 is transparent base, 6 is the transparent base with coating fluid, and 12 is UV photocuring cured film product.
Utilize equipment provided by the invention to prepare ultraviolet light polymerization cured film, preparation method comprises the steps:
(1) ultraviolet light polymerization coating fluid is added to the coating fluid coating system of equipment;
(2) transparent base is loaded onto to board, starting outfit and UV lamp;
(3) linear velocity is made as to 10 meter per seconds, UV intensity of illumination is 600mJ/cm
2; By dancer rools, the cornerite of transparent base and super mirror roller is adjusted to 150 degree;
(4) coating fluid is applied on the transparent base through dust pelletizing system through slot extrusion dies gluing by the flow of design, the thickness of described ultraviolet light polymerization coating fluid coating is 1-15 μ m;
(5) with transparent base rolling after UV impression solidifies of coating fluid, obtain UV photocuring cured film.
Above-mentioned coating fluid coating system is heated to 55-65 ℃ by coating fluid, to reduce the viscosity of coating fluid, makes coating fluid be more convenient for being coated with, the surface more smooth of coating.
As shown in Figure 2, in preparation process, base material 2 unreels by unreeling system 1, after substrate surface dust pelletizing system (cleaning roller) 3 dedustings, enter back flow roll 5, coating fluid is applied on the surface of base material 2 through slot extrusion dies 4 gluings, base material 6 process back flow rolls 5 with coating fluid, jockey pulley 7 enters UV photocuring impression system, UV photocuring impression system is by front pressure roller 8, super mirror roller 9, cornerite dancer rools 10, UV lamp 11 and vacuum suction roller 13 form, the front pressure roller 8 of base material 6 priority process with coating fluid, super mirror roller 9 and UV lamp 11, dancer rools 10, coating fluid solidifies and the impression of super mirror roller 9 through UV lamp 11, form ultra-violet curing hardening coat, optical hardening film 12 after solidifying is through vacuum suction roller 13, carry-over pinch rolls 14, by winding system 15 rollings.
In order to be more readily understood technical scheme provided by the invention and beneficial effect thereof, below in conjunction with preferred embodiment of the present invention, be elaborated.
In following embodiment, low-viscosity polyester acrylate is the CN292 that Guangzhou Sartomer Chemical Co., Ltd. produces, six functional groups aliphatic urethane acrylate is the CN9006 that Guangzhou Sartomer Chemical Co., Ltd. produces, two official's aliphatic urethane acrylates are the CN8010 that Guangzhou Sartomer Chemical Co., Ltd. produces, bisphenol-A epoxy diacrylate is the 621A-80 that Changxing chemical material company limited produces, aliphatic urethane diacrylate is the 611B-85 that Changxing chemical material company limited produces, three-functionality-degree urethane acrylate is the SM6318 that Sanmu Group Co., Ltd., Jiangsu produces, six functionality urethane acrylates are that the vast large macromolecular material in Shanghai has the MD5061B of company's production and the EBECRYL8254 of the special Chemical Manufacture of cyanogen.PET transparent base is the A4300 optics level PET film that TOYOBO spins in Japanese Japan.Hydroxyethyl methylacrylate is the HEMA that the beautiful sun of Mitsubishi is produced, 2(2-ethoxy ethoxy) ethyl propylene acid esters is the SR256 that Guangzhou Sartomer Chemical Co., Ltd. produces, trigger for optical solidification 184 is purchased from Hua Tai chemical company, and surface modifier is the BYK-UV3500 of German Bi Ke chemical production.
The properties of UV photocuring cured film provided by the present invention, in the following manner test:
Mist degree, transmittance: the WGT-S transmittance mist degree instrument that in utilization, Nereid's tech device Manufacturing Co., Ltd manufactures, measure total transmittance (T) and mist degree (H).
Pencil hardness: according to the method for GB GB/T6739-1996, the pencil hardness tester that the model that adopts Guangzhou De Manyi Instrument Ltd. to produce is BY.
Coating adhesion: the hardened layer surface of cured film is divided into 100 grids with hundred lattice cuttves, and each grid is of a size of 1mm * 1mm, the production 3M-600 of the Li Jiang 3M company type special test adhesive tape with 2.0kg adheres on stroke transparent hard coating surface of lattice subsequently.With 180 ° of angles by 3M adhesive tape from this sur-face peeling.The grid number (m) that coating adhesion goes out to stay the hardened layer on base material according to number is assessed, and counts " m/100 ".When m/100 is 1, the rank of coating adhesion is 5B.
Rainbow line: observe rainbow line with TL84 light source under 3 primary colours light boxs, and assess according to following standard:
The invisible ◎ that counts of rainbow line
Rainbow line slightly counts zero
Rainbow line is obviously counted X
Surfaceness: adopt the rich surfagauge of Japanese MITUTOYO tri-that model is SJ-210 to measure, test evaluation length is 16mm.
Coating thickness: the optical thickness gauge ETA-SST of German AUDIO Dev GmbH, 0.01 micron of degree of accuracy.
Embodiment 1
The invention provides a kind of equipment for the preparation of ultraviolet light polymerization optical hardening film, described equipment comprises the system of unreeling 1, substrate surface dust pelletizing system 3, coating fluid coating system, traction and tension control system, UV photocuring impression system and winding system 15; Described UV photocuring impression system forms by surpassing mirror roller 9, front pressure roller 8, dancer rools 10, vacuum suction roller 13 and UV lamp 11.
The diameter of described super mirror roller 9 is 100 millimeters, and material is chrome-plated roller, and surfaceness is 0.01 micron, and concentricity equals 5 microns, and the surface temperature difference of roller is less than 1 ℃.
The diameter of described vacuum suction roller 13 is 60 millimeters, and minimum vacuum degree reaches 0.005Mpa.Described vacuum suction roller 13 is by servo motor driven.
The material of described front pressure roller 8 is silica gel, and the diameter of roller is less than 50 millimeters of super mirror rollers, and surfaceness is 0.05 micron, and shore hardness is 60 degree.
Described dancer rools 10 is metal chrome-plated roller, and roller diameter is 60 millimeters, and roll surface roughness is 0.05 micron, and concentricity is less than or equal to 5 microns; Dancer rools 10 can regulate up and down, with this, controls the cornerite of UV photocuring rear film and super mirror roller.
Described UV lamp is stepless lamp system, and the intensity of illumination of this stepless lamp system is 800mJ/cm
2.
Described coating fluid coating system comprises slot extrusion dies 4 and accurate back flow roll 5; Described back flow roll 5 materials are steel rider chromium plating, and the surfaceness of coating is 0.01 micron.The flow control accuracy of described slot extrusion dies 4 is less than or equal to 1%.
Described system 1 and the winding system 15 that unreel is for servo motor driven, and speed departure is less than or equal to 0.1%; Described dust pelletizing system 3 is contact dust pelletizing system.
Described traction and tension control system comprise jockey pulley (tension control roll) 7 and carry-over pinch rolls 14.Described jockey pulley 7 control accuracies are less than or equal to 1%; Described carry-over pinch rolls 14 are by servo motor driven, and speed departure is less than or equal to 0.1%.
Embodiment 2
The equipment for the preparation of ultraviolet light polymerization optical hardening film providing as embodiment 1, wherein,
The diameter of described super mirror roller 9 is 500 millimeters, is chrome-plated roller, and surfaceness is 0.006 micron.
The diameter of described vacuum suction roller 13 is 150 millimeters.
The material of described front pressure roller 8 is polyurethane, and the diameter of roller is less than 200 millimeters of super mirror rollers, and surfaceness is less than 0.05 micron, and shore hardness is 90 degree.
Described dancer rools 10 is metal chrome-plated roller, and roller diameter is 120 millimeters, and roll surface roughness is less than 0.05 micron, and concentricity is less than 5 microns.
The intensity of illumination of electrodeless UV lamp system is 600mJ/cm
2.
Described back flow roll 5 materials are steel rider nickel plating, and the surfaceness of coating is less than 0.01 micron.
The surface dust removing system 3 of described base material is contactless dust pelletizing system.
Described jockey pulley 7 control accuracies are less than 1%; Described carry-over pinch rolls 14 speed departures are less than 0.1%.
For guaranteeing the degree of accuracy of the thickness of hardening coat, the flow control accuracy of described slot extrusion dies 4 is less than 1%.
Embodiment 3
The equipment for the preparation of ultraviolet light polymerization optical hardening film providing as embodiment 1, wherein,
Described super mirror roller 9 is bag glass roll, and diameter is 200 millimeters, and surfaceness is 0.005 micron, and concentricity is less than or equal to 3 microns.
The diameter of described vacuum suction roller 13 is 100 millimeters.
The material of described front pressure roller 8 is silica gel, and the diameter of roller is less than 80 millimeters of super mirror rollers, and surfaceness is less than or equal to 0.025 micron, and shore hardness is 75 degree.
Described dancer rools 10 is metal chrome-plated roller, and roller diameter is 90 millimeters, and roll surface roughness is less than or equal to 0.01 micron, and the concentricity of roller is less than or equal to 3 microns.
The power of stepless lamp system is that intensity of illumination is 600mJ/cm
2.
Embodiment 4
The equipment for the preparation of ultraviolet light polymerization optical hardening film providing as embodiment 1, wherein,
Described super mirror roller 9 is chrome-plated roller, and diameter is 300 millimeters, and surfaceness is 0.006 micron.
The diameter of described vacuum suction roller 13 is 120 millimeters.
The material of described front pressure roller 8 is polyurethane, and surfaceness is less than or equal to 0.02 micron, and shore hardness is 80 degree.
Described dancer rools 10 diameters are 100 millimeters, and roll surface roughness is less than or equal to 0.01 micron.
The intensity of illumination of electrodeless UV lamp system is 600mJ/cm
2.
The dust pelletizing system 3 of described substrate surface is contactless dust pelletizing system.
Embodiment 5
The equipment that utilizes embodiment 2 to provide, prepare according to the method described above cured film provided by the invention, wherein, transparent base is optics level PET film, thickness is 188 microns, super mirror roller is chromium plating material, surfaceness is 0.006 micron, UV thin hardened layer is about 3 microns, in UV hardened layer, contain: 6 official's aliphatic urethane acrylates of 53 weight portions (EBECRYL8254 of the special Chemical Manufacture of cyanogen), two official's aliphatic urethane acrylates of 7 weight portions, the hydroxyethyl methylacrylate of 5 weight portions, the 2(2-ethoxy ethoxy of 2 weight portions) ethyl propylene acid esters, the trigger for optical solidification 184 of 7 weight portions, surface modifier BYK-UV3500 with 0.1 weight portion.
Embodiment 6
Prepare according to the method described above cured film provided by the invention, except UV thin hardened layer is changed to approximately 5 microns, other condition is identical with embodiment's 5.
Embodiment 7
The equipment that utilizes embodiment 3 to provide, prepares cured film provided by the invention according to the method described above, and except UV transfer printing pressure roller changes bag glass material into, surfaceness changes 0.005 micron into, and other condition is identical with embodiment's 5.
Embodiment 8
Prepare according to the method described above cured film provided by the invention, except UV thin hardened layer is approximately 5 microns, other condition is identical with embodiment's 7.
Embodiment 9
The equipment that utilizes embodiment 2 to provide, prepare according to the method described above cured film provided by the invention, wherein, transparent base is optics level PET film, thickness is 100 microns, super mirror roller is chromium plating material, surfaceness is 0.006 micron, UV thin hardened layer is 1.11 microns, in UV hardened layer, contain: 6 official's aliphatic urethane acrylates of 20 weight portions (EBECRYL8254 of the special Chemical Manufacture of cyanogen), two official's aliphatic urethane acrylates of 10 weight portions, the hydroxyethyl methylacrylate of 5 weight portions, the trigger for optical solidification 184 of 2 weight portions, surface modifier BYK-UV3500 with 0.1 weight portion.
Preparation method comprises the steps:
(3) linear velocity is made as to 5 meter per seconds, UV intensity of illumination is 600mJ/cm
2; By dancer rools, the cornerite of transparent base and super mirror roller is adjusted to 140 degree;
(4) coating fluid is applied on the transparent base through dust pelletizing system through slot extrusion dies gluing by the flow of design.
Embodiment 10
The equipment that utilizes embodiment 1 to provide, prepare according to the method described above cured film provided by the invention, wherein, transparent base is optics level PET film, thickness is 250 microns, super mirror roller is chromium plating material, surfaceness is 0.01 micron, UV thin hardened layer is 14.05 microns, in UV hardened layer, contain: 6 official's aliphatic urethane acrylates of 40 weight portions (EBECRYL8254 of the special Chemical Manufacture of cyanogen), two official's aliphatic urethane acrylates of 30 weight portions, the hydroxyethyl methylacrylate of 20 weight portions, the 2(2-ethoxy ethoxy of 10 weight portions) ethyl propylene acid esters, the trigger for optical solidification 184 of 10 weight portions, surface modifier BYK-UV3500 with 2 weight portions.
Preparation method comprises the steps:
(3) linear velocity is made as to 15 meter per seconds, UV intensity of illumination is 800mJ/cm
2; By dancer rools, the cornerite of transparent base and super mirror roller is adjusted to 160 degree;
(4) coating fluid is applied on the transparent base through dust pelletizing system through slot extrusion dies gluing by the flow of design.
Embodiment 11
The equipment that utilizes embodiment 4 to provide, prepare according to the method described above cured film provided by the invention, wherein, transparent base is optics level PET film, thickness is 30 microns, super mirror roller is chromium plating material, surfaceness is 0.006 micron, UV thin hardened layer is 3.17 microns, in UV hardened layer, contain: 6 official's aliphatic urethane acrylates of 40 weight portions (EBECRYL8254 of the special Chemical Manufacture of cyanogen), two official's aliphatic urethane acrylates of 10 weight portions, the hydroxyethyl methylacrylate of 15 weight portions, the 2(2-ethoxy ethoxy of 5 weight portions) ethyl propylene acid esters, the trigger for optical solidification 184 of 6 weight portions, surface modifier BYK-UV3500 with 1 weight portion.
Preparation method comprises the steps:
(3) linear velocity is made as to 10 meter per seconds, UV intensity of illumination is 600mJ/cm
2; By dancer rools, the cornerite of transparent base and super mirror roller is adjusted to 150 degree;
(4) coating fluid is applied on the transparent base through dust pelletizing system through slot extrusion dies gluing by the flow of design.
Embodiment 12
The equipment that utilizes embodiment 3 to provide, prepare according to the method described above cured film provided by the invention, wherein, transparent base is optics level PET film, thickness is 100 microns, super mirror roller is bag glass material, surfaceness is 0.005 micron, UV thin hardened layer is 5.32 microns, in UV hardened layer, contain: 6 official's aliphatic urethane acrylates of 50 weight portions (EBECRYL8254 of the special Chemical Manufacture of cyanogen), two official's aliphatic urethane acrylates of 5 weight portions, the hydroxyethyl methylacrylate of 7 weight portions, the 2(2-ethoxy ethoxy of 3 weight portions) ethyl propylene acid esters, the trigger for optical solidification 184 of 6 weight portions, surface modifier BYK-UV3500 with 0.3 weight portion.
Preparation method comprises the steps:
(3) linear velocity is made as to 10 meter per seconds, UV intensity of illumination is 600mJ/cm
2; By dancer rools, the cornerite of transparent membrane and super mirror roller is adjusted to 150 degree;
(4) coating fluid is applied on the transparent base through dust pelletizing system through slot extrusion dies gluing by the flow of design.
Comparative example 1
The solvent-free coating fluid of hardened layer in embodiment 5 is got to 30 weight portions, add the butyl acetate of 40 weight portions and the toluene of 29.6 weight portions, the BYK-UV3500 that adds again 0.4 weight portion, after stirring and filtering, upper nick roller solvent-borne type coating machine coating, transparent optical level PET film is the A4300 that TOYOBO spins in Japanese Japan, thickness is 188 microns, the diameter of applicator roll is 50 millimeters, coating speed is 15 ms/min, baking oven length is 25 meters, and oven temperature is 50-80 ℃, and UV intensity of illumination is 600mJ/cm
2, the build of UV coating is about 3 microns.
In the coating fluid of above-mentioned comparative example, contain solvent, need to adopt solvent-borne type wet coating, there are three factors that cause that coating is inhomogeneous, the coating causing as the coating precision of dispense tip, sovent diffusion volatilization process perturbs with coating fluid levelling insufficient, thereby cause the problem of coating thickness inequality, easily occur rainbow line phenomenon.
The performance test data of the cured film that the cured film that table 1 embodiment 5-6 provides and comparative example provide
| ? | Embodiment 5 | Embodiment 6 | Embodiment 7 | Embodiment 8 | Comparative example 1 |
| UV roller platen Facing material | Chromium plating | Chromium plating | Glass | Glass | ? |
| UV roller platen surfaceness, micron | 0.006 | 0.006 | 0.005 | 0.005 | ? |
| Hardening coat surfaceness, micron | 0.008 | 0.008 | 0.007 | 0.007 | 0.036 |
| Hardening coat thickness, micron | 3.02 | 5.37 | 3.16 | 5.25 | 2.97 |
| Cured film transmittance, % | 92.6 | 92.5 | 92.7 | 92.7 | 92.4 |
| Cured film mist degree, % | 0.53 | 0.53 | 0.45 | 0.45 | 0.67 |
| Coating adhesion, hundred lattice methods of testing | 5B | 5B | 5B | 5B | 5B |
| Cured film rainbow line | ◎ | ◎ | ◎ | ◎ | ○ |
The performance test data of the cured film that table 2 embodiment 9-12 provides
| ? | Embodiment 9 | Embodiment 10 | Embodiment 11 | Embodiment 12 |
| UV roller platen Facing material | Chromium plating | Chromium plating | Chromium plating | Glass |
| UV roller platen surfaceness, micron | 0.006 | 0.01 | 0.006 | 0.005 |
| Hardening coat surfaceness, micron | 0.008 | 0.01 | 0.006 | 0.006 |
| Hardening coat thickness, micron | 1.11 | 14.05 | 3.17 | 5.32 |
| Cured film transmittance, % | 91.6 | 91.5 | 93.7 | 92.7 |
| Cured film mist degree, % | 0.56 | 0.95 | 0.46 | 0.47 |
| Coating adhesion, hundred lattice methods of testing | 5B | 5B | 5B | 5B |
| Cured film rainbow line | ◎ | ◎ | ◎ | ◎ |
By the data shown in table 1 and table 2, can be drawn, utilize the surfaceness of the ultraviolet light polymerization cured film that equipment provided by the invention makes to be all less than or equal to 0.01 micron, therefore rainbow line is that human eye is invisible, can meet the application that outward appearance is had high requirements, as base material for ITO plated film etc.
The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention.Every equalization that content is done according to the present invention changes and modifies, and is all encompassed in the scope of the claims of the present invention.
Claims (10)
1. for the preparation of an equipment for ultraviolet light polymerization optical hardening film, it is characterized in that, described equipment comprises the system of unreeling, substrate surface dust pelletizing system, coating fluid coating system, traction and tension control system, UV photocuring impression system and winding system; Described UV photocuring impression system forms by surpassing mirror roller, front pressure roller, dancer rools, vacuum suction roller and UV lamp.
2. equipment according to claim 1, is characterized in that, described coating fluid coating system comprises slot extrusion dies and back flow roll, and described traction and tension control system comprise jockey pulley and carry-over pinch rolls, and described optical hardening film comprises transparent base and hardening coat; Described transparent base is unreeled by the system of unreeling, after the dedusting of substrate surface dust pelletizing system, enter back flow roll, coating fluid is applied on the surface of base material through slot extrusion dies gluing, base material with coating fluid enters UV photocuring impression system through back flow roll, jockey pulley, base material with coating fluid successively passes through front pressure roller, super mirror roller and UV lamp, dancer rools, coating fluid solidifies and the impression of super mirror roller through UV lamp, form hardening coat, gained optical thin film is through vacuum suction roller, carry-over pinch rolls, by winding system rolling.
3. equipment according to claim 1, it is characterized in that, the diameter of described super mirror roller is 100-500 millimeter, and the diameter of described front pressure roller is less than at least 50 millimeters of super mirror rollers, described dancer rools diameter is 60-120 millimeter, and the diameter of described vacuum suction roller is 60-150 millimeter.
4. equipment according to claim 1, is characterized in that, the diameter of described super mirror roller is 100-500 millimeter, and described super mirror roller is selected from stainless steel rider, chrome-plated roller, nickel plating roller or bag glass roll, and surfaceness is less than or equal to 0.01 micron.
5. equipment according to claim 1, is characterized in that, the diameter of described vacuum suction roller is 60-150 millimeter, and minimum vacuum degree reaches 0.005Mpa.
6. equipment according to claim 1, is characterized in that, the material of described front pressure roller is silica gel or polyurethane, and the diameter of roller is less than at least 50 millimeters of super mirror rollers, and surfaceness is less than or equal to 0.05 micron.
7. equipment according to claim 1, is characterized in that, described dancer rools is metal chrome-plated roller, and roller diameter is 60-120 millimeter, and roll surface roughness is less than or equal to 0.05 micron.
8. equipment according to claim 1, is characterized in that, described coating fluid coating system comprises slot extrusion dies and back flow roll; Described back flow roll material is steel rider chromium plating or nickel, and the surfaceness of coating is less than or equal to 0.01 micron.
9. equipment according to claim 1, is characterized in that, the diameter of described super mirror roller is 100-500 millimeter, and described super mirror roller is selected from stainless steel rider, chrome-plated roller, nickel plating roller or bag glass roll, and surfaceness is less than or equal to 0.01 micron; The diameter of described vacuum suction roller is 60-150 millimeter, and minimum vacuum degree reaches 0.005Mpa; The material of described front pressure roller is silica gel or polyurethane, and the diameter of roller is less than at least 50 millimeters of super mirror rollers, and surfaceness is less than or equal to 0.05 micron; Described dancer rools is metal chrome-plated roller, and roller diameter is 60-120 millimeter, and roll surface roughness is less than or equal to 0.05 micron; Described coating fluid coating system comprises slot extrusion dies and back flow roll; Described back flow roll material is steel rider chromium plating or nickel, and the surfaceness of coating is less than or equal to 0.01 micron.
10. a ultraviolet light polymerization optical hardening film, is characterized in that, described cured film comprises transparent base and the ultraviolet light polymerization hardening coat of coating base material upper surface, and described hardening coat surfaceness is less than or equal to 0.01 micron; Described ultraviolet light polymerization cured film utilizes the described equipment preparation of one of claim 1 to 9; The thickness of described transparent base is 30-500 μ m, and the thickness of described ultraviolet light polymerization hardening coat is 1-15 μ m.
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| CN201420145111.7U CN203881962U (en) | 2014-03-27 | 2014-03-27 | Ultraviolet light curing optic hardened film and device for preparing ultraviolet light curing optic hardened film |
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Cited By (8)
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| CN103869387A (en) * | 2014-03-27 | 2014-06-18 | 宁波惠之星新材料科技有限公司 | Ultraviolet light curing optic hardened film, preparing device thereof and preparing method thereof |
| CN104875403A (en) * | 2015-06-17 | 2015-09-02 | 侯兴福 | Piece or film material production line and surface hardening device thereof |
| CN105425323A (en) * | 2015-12-17 | 2016-03-23 | 宁波惠之星新材料科技有限公司 | Impressing roller and coating equipment for preparing ultraviolet curing coating |
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| CN103869387A (en) * | 2014-03-27 | 2014-06-18 | 宁波惠之星新材料科技有限公司 | Ultraviolet light curing optic hardened film, preparing device thereof and preparing method thereof |
| CN103869387B (en) * | 2014-03-27 | 2016-04-20 | 宁波惠之星新材料科技有限公司 | A kind of ultraviolet light polymerization optical hardening film and Preparation equipment thereof and preparation method |
| CN104875403A (en) * | 2015-06-17 | 2015-09-02 | 侯兴福 | Piece or film material production line and surface hardening device thereof |
| CN105425323A (en) * | 2015-12-17 | 2016-03-23 | 宁波惠之星新材料科技有限公司 | Impressing roller and coating equipment for preparing ultraviolet curing coating |
| CN106896424A (en) * | 2015-12-17 | 2017-06-27 | 宁波惠之星新材料科技有限公司 | A kind of solvent-free UV impressings cured film, a kind of equipment for preparing cured film and preparation method thereof |
| CN105605092A (en) * | 2016-02-03 | 2016-05-25 | 施敏华 | Super-mirror-surface rolling wheel structure and manufacturing method thereof |
| CN111320941A (en) * | 2018-12-17 | 2020-06-23 | 浙江欣麟新材料技术有限公司 | High-strength screen lower fingerprint identification photoelectric protective film with self-repairing function on surface |
| CN109395999A (en) * | 2018-12-28 | 2019-03-01 | 东莞市超智新材料有限公司 | A kind of front curing system and UV film system of processing |
| CN112694845A (en) * | 2020-12-24 | 2021-04-23 | 宁波长阳科技股份有限公司 | Screen protection film and preparation method thereof |
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