CN100437155C - Resin layer surface micro structure mould-band rolling wheel shaping method and optical film - Google Patents
Resin layer surface micro structure mould-band rolling wheel shaping method and optical film Download PDFInfo
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- CN100437155C CN100437155C CNB2006100083175A CN200610008317A CN100437155C CN 100437155 C CN100437155 C CN 100437155C CN B2006100083175 A CNB2006100083175 A CN B2006100083175A CN 200610008317 A CN200610008317 A CN 200610008317A CN 100437155 C CN100437155 C CN 100437155C
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Abstract
The invention relates to a method to form a Tape-to-Roll(TTR) about the surface micro-structure of optical activity resin layer, the related surface micro-structure is embossed molding by the molding belt with anti-adhesion and low surface energy and optical activity resin(for example: UV adhesive) before the curing, embossed at the same time through an surface initial curing UV lights, the optical activity resin or viscose before entering entirely Curing UV lights curing the surface of optical activity resin, the loss of mobility, in order to avoid forming embossed micro-structure produce stampede or deformation, at last the surface micro-structure of optical activity resin layer of initial curing is completely curing by curing UV lights. The invention also includes optical film which is manufactured according to this method.
Description
Technical field
The present invention relates to a kind of mould band pair roller wheel shaping method and optical thin film of resin layer surface micro structure, relate in particular to a kind of mould band pair roller wheel shaping method of photo-sensitive resin surface micro-structure and the optical thin film that makes according to this method.
Background technology
Some LCD use brightness enhancement film increasing the light output briliancy of LCD in a large number, and make light output direction level off to quadrature or coaxial direction in liquid crystal display equipment screen.The general brightness enhancement film of using, the surface has microstructure, and its microstructure can comprise prism array, and the optical texture of this prism array can effectively increase the quantity of on-axis rays and reduce required energy of light source, the on-axis luminance of wanting with generation.Generally comprise brightness enhancement film in the backlight module in the LCD, this brightness enhancement film is positioned between diffusion sheet and panel of LCD.Backlight liquid crystal display also comprises light source such as cold-cathode fluorescence lamp (cold cathodefluorescent lamp; CCFL), light emitting diode (LED), micromolecule light emitting diode (MOLED) or polymer LED (PLED) or area source etc., the light of light source by light guide plate with the light direction of photoconduction to panel of LCD.Brightness enhancement film (or prismatic lens) (Brightnes s enhancement films; BEF) therefore the photoconduction that light guide plate can be sent can increase the brightness of panel of LCD to collimation direction (dwindling the dispersion angle of dispersing light source).In addition,, increase the light utilization rate, can use reflective polarizers (DBEF or CBEF) once more light to be done to reclaim and use to save electric power in order to improve the briliancy of LCD.The brightness that increases can make panel of LCD produce image clearly, also can reduce the loss of energy of light source.Prismatic lens in the LCD is used for graphoscope such as knee escope and computer screen, TV, video recorder, mobile communication element, portable element such as mobile phone and PDA, automobile, avionic display etc. in a large number.Prismatic lens is the optical thin film of a kind of light-permeable and tool microstructure, microstructure is made up of many prisms, utilize the total reflection and the refracting characteristic of prism inside to change direction of light, scattering and disappearing of restriction light to increase the loss of brightness and minimizing energy, relevant patent sees that international publication number is WO96/23649 number patented claim, and its optical texture is seen Fig. 1.Wherein, prismatic lens P1 up and down, P2 comprises a base film P3 and prism array such as P4, P5, P6, P7, P8, P9, P10, P11, P12 wherein, base film P3 and prism array tool one interface Pi.Each prism such as prism P4 have first prism facets Pa and second prism facets Pb, and the edge on the top on two planes interlocks and forms a summit, and its angle can be between 70-120 degree or 80-100 degree, and prism facets does not need to be defined, and only need incline towards each other.In addition, the thickness and the relation between prism height of base film are unimportant, but wish to cooperate with thinner base film the prism of definition, the angle of prism facets Pa and Pb and base film P3 can be 45 degree, but this angle is decided by the interval of face or the angle of summit.Prism P4, P5, P6, P7 and P8, P9, P10, P11, P12 form makes whole one-tenth an array.Optical element for example brightness enhancement film, angle limitations blooming or reflecting element etc. all is article that the base film surface has the Microstructure Optics design, and these microstructure major parts are made of a kind of sequence that replaces by spike (tips) He Goucao (grooves), for example the tool rule repeats and the spike and the ditch mortise of symmetry promptly form brightness enhancement film, other example comprises asymmetric spike and asymmetric ditch mortise, with the design different with size, direction or the spacing of ditch mortise of various spikes.Disclose in United States Patent (USP) No. 5771328 (Light directing filmhaving variable height structured surface and light directing articleconstructed therefrom) in addition, can eliminate optical coupled (wet-out) phenomenon by the small variation of prism peak height, in the hope of best light harvesting effect, make the audience can obtain under normal operation optimal brightness and all together the degree.Making of this prismatic lens is on the base film of a high penetration, and evenly photosensitive resin coating such as acrylic resin (acrylic resin) utilize the crosslinked volume production moulding of micro-nano imprint technology and ultraviolet light polymerization again.For most of backlight modules, can increase by 60% briliancy in putting a slice prism agreement that contracts a film or TV play to an actor or actress, but 2 prismatic lenses with under the vertical overlapping more the hoisting module briliancy reach 120% approximately, that is, reducing power consumption and prolonging battery under service time, can make the brightness of LCD screen increase by 2.2 times.
Previous U.S. publication application (US 2005/0134963 A1, Method for stackingsurface structured optical films) disclosed the technology of brightness enhancement film, its technology is evenly to be coated with one deck UV glue on a transparent base, is passing through rolling manufacturing process (Roll-to-Roll; RTR), the microstructure transfer printing on the metal running roller at the UV glue-line, is passed through UV lamp full solidification again with then on described transparent base.But owing to use the rolling manufacturing process when making these optical thin films, partly solidified UV glue easily is attached on each spike and ditch mortise of the more high or low contact angle of surface energy (contact angle) metal running roller, make it follow-up when continuous embossed, easily produce the microstructural defects on the optical thin film, or cause running roller to can't bear to use, this makes it range limited in utilization, and running roller involves great expense, in time, must renew, the manufacturing cost that heightens, and manifest its shortcoming.
In view of this, the present invention discloses a kind of UV glue-line surface micro-structure forming method, and the UV glue that its mould is difficult for being cured easily is attached to the surface, the rate that manufactures a finished product and the throughput rate of increase optical thin film under durable prerequisite.
Summary of the invention
The mould band that the object of the present invention is to provide a kind of photoresist (as UV glue) laminar surface microstructure is to running roller (Tape-to-Roll; TTR) forming method, be to make a base film through gluing feed roller wheels, and be a gluing wheel of these upper glue roller wheels, coating one deck photoresist (as the UV glue-line) at least one side of described base film, and through a surperficial tool microstructure and the anti-shaping mould band of being stained with glutinous and low-surface-energy layer of microstructure tool, transfer printing goes out required microstructure on described photo-sensitive resin, transfer printing is simultaneously with an in type photo-sensitive resin of surperficial primary solidification UV light irradiation or a mucigel, make the surface of described photo-sensitive resin produce curing, lost flowability, surface micro-structure shape with the moulding of maintenance institute is complete, make the irradiation of described photoresist or viscose again by curing molding UV lamp, make the photoresist or the mucigel of described moulding finish curing, and finish then with described base film.Wherein anti-being stained with of institute's tool sticks the shaping die band that reaches the low-surface-energy layer, this shaping mould band is bonded to two roller set up and down, drive to drive the shaping mould band by a running roller wherein, make described shaping mould band continuously and the photo-sensitive resin (or UV glue-line) on the base film impress shaping.
In order to realize described purpose, the mould band of a kind of photo-sensitive resin surface micro-structure of the present invention comprises the following steps: the forming method of running roller
A. make a base film through gluing feed roller wheels, coating one deck photo-sensitive resin above described base film;
B. use a molding band roller set, described shaping mould band roller set comprises that a continuous type shaping mould band is around lying on two running rollers; Or described shaping mould band roller set comprises that a cylinder pattern band cover lies on the major diameter running roller, prefabricated with microstructure decorative pattern, pattern on described mould band, below the base film that is coated with photo-sensitive resin with a back pressure element back pressure under, make microstructure decorative pattern, pattern rolling on the described mould band, impress on described photo-sensitive resin;
C. it is mobile and keep the preliminary lamination of the integrality of substrate surface microstructure shape simultaneously to make it be solidified to form tool not with the described photo-sensitive resin of primary solidification UV light irradiation in described mould band moulding process;
D. the preliminary lamination that makes described base material and described photo-sensitive resin makes described photo-sensitive resin and described base material gummed, solidifies to make the lamination finished product through a plurality of curing molding UV lamps.
Described shaping mould band roller set comprises: be preset with microstructure decorative pattern, pattern on the continuous type shaping mould band band, at least two running rollers lie between the interior two ends of described mould band, wherein can hold the base material that is coated with described photo-sensitive resin between a running roller and the described back pressure element and raise, and be microstructure decorative pattern, pattern institute imprinting moulding on the described mould band through therebetween.
Described shaping mould band roller set comprises: be preset with microstructure decorative pattern, pattern on the cylinder pattern band band, a major diameter running roller is that described cylinder pattern band is in impressing on described photo-sensitive resin on the described running roller and with microstructure decorative pattern, pattern on the mould band in order to cover.
Described gluing feed roller wheels comprise: a gluing wheel revolves a side (as upside) of being located at described base material, one lower roll wheel revolve side by side the opposite side (as downside) of being located at described base material correspond to as described in gluing wheel, and the one brush rubber tire is parallel is hubbed at the side of described gluing wheel and photoresist is attached on this gluing wheel; By described gluing wheel described photoresist is coated on the described base material of institute's charging equably.
Described lower roll wheel overlaps a scraper plate, and divides into a jelly accumulator tank, and the unnecessary jelly that lower roll wheel is accepted is struck off, and is recovered among the jelly accumulator tank.
Described back pressure element comprises a back pressure flat board, is provided with described primary solidification UV lamp in the plate and makes UV light that the UV lamp is shone directly pass a described base material of plate mouth directive of described back pressure flat board and photo-sensitive resin with the described photoresist of primary solidification.
Described back pressure element comprises: a clear hollow cylinder be hubbed at accordingly described shaping mould band roller set a below running roller downside (or opposite end) with back pressure be coated with photoresist described base material that between described below running roller and described hollow cylinder; And one the UV lamp be arranged in the inside of described hollow cylinder with the photoresist on the described base material of irradiation, heating, primary solidification institute back pressure.
The back pressure element of described shaping mould band roller set comprises: one is installed in the opposite side of described format roll wheels with being the hollow cylindrical tube axially parallel; Its both sides of described surperficial primary solidification UV lamp are installed between a pair of fixed lamp-socket, make two fixed lamp-sockets be installed on a pair of fixed pedestal, and the circumferential outer edge in described two fixed lamp-sockets articulates pair of bearings respectively, outer rim in described two bearings stably installs described hollow cylindrical tube, and a drive end that makes described hollow cylindrical tube connects a driver and changes, and turns with motor interlock; Described hollow cylindrical tube end in addition then is articulated on the base; Because described surperficial primary solidification UV lamp is installed in the described hollow cylindrical tube, described shaping mould band with its with on microstructure floral designs rolling, when impressing the photo-sensitive resin on being coated on plastic basis material, described surperficial primary solidification UV lamp is from the outwards ultraviolet ray of projection of hollow cylindrical tube, and the surface to described photo-sensitive resin imposes the surface cure moulding in real time.
The present invention also provides the forming method of a kind of mould band of photo-sensitive resin surface micro-structure to running roller, in order to make optical thin film, comprises the following steps:
A. make a base film raise, coating one deck photo-sensitive resin above described base film through gluing feed roller wheels;
B. use a molding band roller set prefabricated decorative pattern, pattern on described mould band to contain a plurality of prism arrays or microstructure, below the base film of described photo-sensitive resin with a back pressure element back pressure under, make prism array or microstructure decorative pattern, pattern rolling on the described mould band, impress on described photo-sensitive resin;
C. in described mould band moulding process, make curing and do not have flowability simultaneously with the described photo-sensitive resin of primary solidification UV light irradiation;
D. make described base material and described photo-sensitive resin a plurality of curing molding UV lamps that stimulate the menstrual flow, making described photo-sensitive resin and described base material gummed, solidifying to make its upper strata is prism array or microstructure, and lower floor is the optical thin film lamination finished product of base film.
The present invention also provides a kind of optical thin film, and it is made according to aforesaid method.
The forming method of the photo-sensitive resin surface micro-structure that the present invention discloses, can effectively guarantee the integrality of continuously shaped microstructure or pattern, and can prevent mould to glue-line be stained with viscosity guaranteeing the serviceable life of mould, promote product quality and production efficiency and obvious its novelty superiority.By the prepared optical thin film of method of the present invention, its microstructure comprises that the sharp cutting edge of a knife or a sword and the groove of various geometric configuratioies such as prism is well arranged, and finished product is accurate, and fiduciary level is good, can promote the quality and the value of photoelectricity, information, household electrical appliances Related product.
Description of drawings
Fig. 1 is the prismatic lens of existing tool prism microstructure.
Fig. 2 is the first embodiment synoptic diagram of photo-sensitive resin of the present invention (as the UV glue-line) surface micro-structure moulding.
Fig. 3 is the second embodiment synoptic diagram of resin bed of the present invention (as the UV glue-line) surface micro-structure moulding.
Fig. 4 is the longitudinal profile synoptic diagram of back pressure element among Fig. 3.
Fig. 5 is the 3rd an embodiment synoptic diagram of photo-sensitive resin of the present invention (as the UV glue-line) surface micro-structure moulding.
Fig. 6 is the 4th an embodiment synoptic diagram of resin bed of the present invention (as the UV glue-line) surface micro-structure moulding.
Fig. 7 is the 5th an embodiment synoptic diagram of photo-sensitive resin of the present invention (as the UV glue-line) surface micro-structure moulding.
The main element symbol description:
1 rolls; 2 plastic basis materials;
3 gluing feed roller wheels; 41 gluing wheels;
4 photoresists (as UV glue) layer; 4a photoresist (as UV glue);
6 shaping mould band roller set; 44 jelly accumulator tanks;
45 scraper plates; 5 lamination finished products;
7 primary solidification UV lamps; 60 large-scale running rollers;
61 upper roll wheels; 62 lower roll wheels;
63,63a shaping mould band; 64 microstructures;
8 plate mouths; 88 back pressure elements;
9 curing molding UV lamps; The 9t hollow quartz tube;
19 quartz ampoules reflection pedestal; 42 lower roll wheels;
43 daubs wheel; 10 solidify microstructure;
9a, the 9b fixed lamp-socket; Pa, Pb, Pc, Pd prism facets;
P3～P12 prism; 18 bearings;
20 motors; 87 cooling devices.
Embodiment
Desirable entity of the present invention can by following explanation and appended each be graphic, and is able to distinct.
(embodiment one)
Figure 2 shows that first embodiment of the present invention relevant for the forming method of a kind of photo-sensitive resin (as the UV glue-line) surface micro-structure.This forming method is to make a plastic basis material 2 raise through gluing feed roller wheels 3 from its rolls 1 (being the A end of Fig. 2), and make a gluing wheel 41 of these upper glue roller wheels 3 at least one side of described this plastic basis material 2, be coated with a photo-sensitive resin (as the UV glue-line) 4, and on described resin bed 4, impress out required microstructure (comprising prism array etc.) through a molding band roller set 6.Wherein said shaping mould band rolling wheels are to be combined by a upper roll wheel that be arranged in parallel 61 and lower roll wheel 62, and wherein upper roll wheel 61 is an active roll, and lower roll wheel 62 is passive running roller.In addition, with a molding band 63 (can be continuous type endless belt (endless)) around lying on the upper and lower running roller 61,62, and the decorative pattern of shaping mould band 63 surperficial tool microstructures 64 or pattern (pattern).Photoresist (as the UV glue) microstructure that impression is finished, simultaneously with a surperficial primary solidification UV lamp 7, shine described photoresist (as UV glue) layer 4, this photo-sensitive resin 4 is produced to be solidified, lost flowability, complete with the surface micro-structure shape that keeps institute's moulding, make plastic basis material 2 and described resin bed 4 pass through a plurality of curing molding UV lamps 9 again, make described plastic basis material 2 and described resin bed 4 produce adhesion gummed and curing, its lamination finished product 5 is furled by the B end of Fig. 2.
Described upper glue roller wheels 3 comprise: a gluing wheel 41, and be CD-ROM drive motor institute driven in rotation; Be installed in the opposite side of described gluing wheel 41 one lower roll wheel, 42 axially parallels, and make described lower roll wheel 42 and 41 of described gluing wheels can transmit a plastic basis material 2 and photo-sensitive resin (as the UV glue-line) 4 with the relative rotation; And one brush rubber tire 43 axially parallels be installed in a side of described gluing wheel 41, and can adjust the spacing of 41 of described daub wheel 43 and gluing wheels, be attached to resin or UV glue 4a thickness on the described gluing wheel 41 with control, make gluing wheel 41 and lower roll wheel 42 when transmitting this resin bed 4 with the relative rotation, gluing wheel 41 can be coated with last layer photosensitive resin layer (as the UV glue-line) 4 equably on plastic basis material 2.Described daub wheel 43 can be turned by motor interlock, and makes daub wheel 43 be reverse rotation with gluing wheel 41.Above-mentioned upper glue roller wheels 3 also contain a jelly accumulator tank 44 and a scraper plate 45; Wherein said jelly accumulator tank 44 is installed in the below of lower roll wheel 42, make the top of described jelly accumulator tank 44 define forming one and enter the projection of glue notch places lower roll wheel 42 to normal incidence below, to accept from the jelly of described lower roll wheel 42 drippages, and make the bottom of jelly accumulator tank 44 form an outlet at least, extend to the top of described photoresist (as UV glue) storage tank, flow back in the described UV glue accumulator tank 44 with the jelly in the guiding jelly accumulator tank 44; Described scraper plate 45 lengthways is installed on a side of described lower roll wheel 42 in addition, and the plate edge that makes described scraper plate 45 often is cross-placed on the lower roll wheel 42, striking off the jelly that is attached on the lower roll wheel 42, and make the photoresist (as UV glue) that is scraped drip in as described in the jelly accumulator tank 44.
Photoresist used in the present invention (as UV glue) 4, desirable self-induced transparency or coloured single or combined type UV glue, this photoresist (as UV glue) is when the ultraviolet ray irradiation of accepting different capacity, can produce the characteristic of the different curing or the degree of following, so the present invention is by the surperficial primary solidification UV lamp 7 and the curing molding UV lamp 9 of different ultraviolet power, make photoresist (as UV glue) layer 4 on the plastic basis material 2 when rolling and forming microstructure or pattern, earlier impose surface cure by described surperficial primary solidification UV lamp 7, to avoid before moving to full solidification moulding UV lamp 9 and finishing then and solidify, cause the microstructure of institute's rolling or pattern is defeated and dispersed or the distortion, the curing microstructure of rolling or pattern 10 is complete to guarantee.Photoresist used in the present invention (as UV glue) 4 can be formed by a diluting solvent (diluter), oligomer (oligomers), monomer (monomers) and corresponding smooth initiator (photoinitial) and adjuvant interlinkage.These compositions are described as follows: the refractive index of the minimum tool 1.50 of refractive index of [1] interlinkage type polymer base material, and remarkable durability is arranged the time in sclerosis, interlinkage type macromolecule commonly used comprises the product of acrylic acid and/or methacrylic acid, and bromine compounds, alkyl are for phenylacrylic acid or methacrylic acid (for example 4,6-dibromo-2-sec-butyl phenyl acrylate), methyl styrene monomer, brominatedepoxy diacrylate, 2-phenoxyethyl acrylate hexa-functional aromaticurethane acrylate oligomer.[2] thinning agent (diluter) fundamental purpose is used for reducing high molecular coefficient of viscosity, makes air entrapment can not produce, and obtains perfect microstructure, thinning agent commonly used such as mono-or ai-functional monomer etc.[3] initiator comprises: organic peroxide, azo-compound (azo compounds); quinine (quinines); nitro compound (nitro compounds); acyl halide (acyl halides); hydrazone (hydrazones); sulfhydryl compound (mercapto compounds); phrylium compounds; imidazoles (imidazoles); chlorotriazine (chlorotriazines), benzoin (benzoin), benzoin alkylether (benzoin alkyl ethers); diketone (di-ketones), phenyl ketone (phenones) etc.[4] optical layers on the optical thin film or microstructured layers can be made by macromolecular material identical or inequality, comprise the monomer of methacrylic acid monomer, halogenated monomer and other high index of refraction of high index of refraction.High mars free radical monomer and oligomer form are being used recently, and acrylic acid is widely used because of its high activity.[5] macromolecular composition comprises one or more other useful adjuvants, as surfactant, antistatic agent and other possible composition.Surfactant such as fluorochemical surfactant (fluorosurfactant) can reduce wetting, the more sliding suitable coating of surface tension, improvement of macromolecular composition and reduce the defective that is coated with.
Shaping mould band roller set 6 used in the present invention contains: a upper roll wheel 61, it is linked by a motor and is turned, and a lower roll wheel 62, with a molding band 63 around lying on the upper and lower running roller 61,62.Required microstructure, decorative pattern or pattern 64 have been made on the mould belt surface of this shaping mould band 63; Dull and stereotyped 88 axially parallels of one back pressure ground is installed in a side of described format roll wheels 6, and order is installed on the interior UV lamp 7 of back pressure dull and stereotyped 88 by lamination radiation heating, the curing towards photoresist (as UV glue) and base material of the plate mouth 8 of back pressure flat board 88; And make the described back pressure dull and stereotyped 88 and the spacing of described format roll wheels 6 can give adjustment, to regulate the pressure on the photoresist (as UV glue) 4 that these format roll wheels 6 put on plastic basis material 2, make the plastic basis material 2 that is coated with photo-sensitive resin (as the UV glue-line) 4, when being involved in by shaping mould band roller set 6, can in resin bed (as the UV glue-line) 4 surperficial top rolls shut out with shaping mould band 64 surfaces on the microstructure, decorative pattern or the pattern 64 that conform to.Shaping mould band 63 used in the present invention can be the nonmetal or metal material of high strength and high endurance limit or high-fatigue strength.The material of coating shaping mould belt surface microstructure 64 can come from the anti-glutinous material of being stained with, and produces good then intensity with shaping mould band 63, and should constitute the material tool scratch resistance of shaping mould belt surface microstructure 64, to increase the serviceable life of mould.Illustrated embodiments can use photoresist (as UV glue) or Hard coat with UV glue (pencil hardness reaches more than the 8H), and these photoresists (as UV glue) contain the low-surface-energy molecule, the embodiment silane described as follows of low-surface-energy molecule representative: 1H, 1H, 2H, 2H-perfluoro capryl triethoxy-silicane (1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane fluorinated silane); 13 is fluorine-based-1,1,2, and 2-tetrahydro octyl group silicochloroform (tridecafluoro-1,1,2,2-tetrahydrooctyl trichlorosilane, F13-TCS); Octadecyl silicochloroform (Octadecyltrichlorosilane, CH
3(CH
2)
17SiCl
3, OTS); Alkylchlorosilane (Alkylchlorosilanes, CH
3(CH
2)
N-1SiCl
3); Propyltrichlorosilan (Propyltrichlorosilane, CH
3CH
2CH
2SiCl
3, PTCS); 3,3, and 3-trifluoro propyl trichlorosilane (3,3,3-trifluoropropyl trichlorosilane, CF
3CF
2CH
2SiCl
3, FPTCS); Dimethyldichlorosilane (dimethyldichlorosilane, DDMS); 17 is fluorine-based-1,1,2, and 2-tetrahydro octyl group silicochloroform (heptadecafluoro-1,1,2,2-tetrahydrodecyltrichlorosilane, FDTS) etc.
The UV glue-line of above-mentioned lamination finished product 5 is made prism array (prism array) or other microstructure and can be formed an optical thin film (optical film) and be widely used in electronics, information, the household appliances such as LCD.
[embodiment two]
As Fig. 3, shown in Figure 4, the back pressure element of shaping mould band roller set 6 used in the present invention, can be modified to a back pressure element 9t who is the hollow circuit cylinder tubular from structure shown in Figure 2 88 and (can be selected from ultraviolet transparent transparent material, for example quartzy), be installed in the opposite side of format roll wheels 6 its axially parallel; And described surperficial primary solidification UV lamp 7 its both sides are installed on a pair of fixed lamp-socket 9a, between 9b, make two fixed lamp-socket 9a, 9b (as shown in Figure 4) is installed in a pair of fixed pedestal 9c, on the 9d, and in two fixed lamp-socket 9a, the circumferential outer edge of 9b articulates pair of bearings 18 respectively, outer rim in two bearings 18 stably installs hollow quartz tube 9t, and makes the drive end 19a of described hollow quartz tube 9t connect driver commentaries on classics 19b, turns with a motor 20 interlocks; Quartz ampoule holds 19c then to be articulated on the base in addition.Because surperficial primary solidification UV lamp 7 is installed in the described hollow quartz tube 9t, so when described shaping mould band 63 with its with on microstructure floral designs rolling, impress in the photo-sensitive resin (as the UV glue-line) 4 o'clock that is coated on the plastic basis material 2, described surperficial primary solidification UV lamp 7 is from the outwards ultraviolet ray of projection of hollow quartz tube 9t, surface to described resin bed (as the UV glue-line) 4 imposes the surface cure moulding in real time, making by rolling has the rheological of resin (as the UV glue) layer of microstructure or pattern to have no way of taking place, even also described resin bed (as the UV glue-line) 4 be moved to curing molding UV lamp 9 impose then solidify before, microstructure or the pattern on described photoresist (as UV glue) layer 4 surface, suppressed, can be not moving because of resin or UV solation, and produce defeated and dispersed or distortion, promote product quality and production efficiency relatively.
Disclosed each primary solidification UV lamp 7 and curing molding UV lamp 9, can take from the UV lamp of various power, in each UV lamp 7, but 9 dorsal part installs a reflecting plate or filtering film 19 respectively, to assemble each UV lamp 7,9 ultraviolet ray makes on the photo-sensitive resin or UV glue-line 4 that is projeced into plastic basis material 2, follows and full solidification so that the inboard layer of described plastic basis material 2 produces with described photoresist or UV glue 4, and makes described photoresist or UV glue-line 4 curing moldings.Each UV lamp 7,9 can use cooling devices 87 such as fan or frozen water machine to cool off, dispel the heat to increase the life-span of UV lamp system.
[embodiment three]
As shown in Figure 5, another preferred configuration of shaping mould band roller set 6 used in the present invention, it contains: a pair of upper roll wheel 61a, 61b are linked by a synchronous motor and are turned, and a lower roll wheel 62, with a molding band 63 around lying on upper roll wheel 61a, 61b and the lower roll wheel 62.Running roller 61a is in order to furl the mould band 63 that is unclasped from running roller 61b.Required microstructure, decorative pattern or pattern 64 have been made on the mould belt surface of this shaping mould band 63; Be installed in the opposite side of described format roll wheels 6 dull and stereotyped 88 axially parallels of one back pressure, and make the described back pressure dull and stereotyped 88 and the spacing of described format roll wheels 6 adjust, to regulate the pressure on photoresist (as the UV glue) layer 4 that described format roll wheels 6 put on plastic basis material 2, make the described plastic basis material 2 that is coated with photo-sensitive resin (as UV glue) layer 4 involved in by as described in during shaping mould band roller set 6, can described photoresist (as UV glue) layer 4 surperficial top roll shut out with as described in the microstructure, decorative pattern or the pattern 64 that conform on shaping mould band 64 surfaces.
[embodiment four]
As shown in Figure 6, the back pressure element of the embodiment of the invention three employed shaping mould band roller set 6, can be modified to one from structure shown in Figure 5 88 is hollow circuit cylinder tubular 9t and (can adopts ultraviolet transparent transparent material, for example quartzy), be installed in a side of described format roll wheels 6 its axially parallel; And described surperficial primary solidification UV lamp 7 its both sides are installed on a pair of fixed lamp-socket 9a, between 9b, imitate as shown in Figure 4, do not give unnecessary details at this.
[embodiment five]
As shown in Figure 7, described shaping mould band roller set 6 can be modified to cylindrical shape mould band 63a and directly be nested on the large-scale running roller 60, and the back pressure element 9t that cooperates the below is with rolling and forming microstructure decorative pattern, pattern.
The forming method of photoresist (as UV glue) the laminar surface microstructure that the present invention discloses, be to finish described photo-sensitive resin (as UV glue) layer 4 surface micro-structure with multisection type, can effectively guarantee the integrality of continuously shaped microstructure or pattern, and can prevent mould to glue-line be stained with viscosity guaranteeing the serviceable life of mould, promote product quality and production efficiency and obvious its novelty superiority.
Disclosed structure, shape can give changes in modification and use not breaking away under spirit of the present invention and the category, the present invention is not limited.By the prepared optical thin film of the inventive method, its microstructure comprises that the sharp cutting edge of a knife or a sword and the groove of various geometric configuratioies such as prism is well arranged, and finished product is accurate, and fiduciary level is good, can promote the quality and the value of photoelectricity, information, household electrical appliances Related product.
Claims (6)
1. the mould band of a photo-sensitive resin surface micro-structure is characterized in that comprising the following steps: to the forming method of running roller
A. make a base film through gluing feed roller wheels, coating one deck photo-sensitive resin above described base film;
B. use a molding band roller set, described shaping mould band roller set comprises that a continuous type shaping mould band is around lying on two running rollers; Or described shaping mould band roller set comprises that a cylinder pattern band cover lies on the major diameter running roller, prefabricated with microstructure decorative pattern, pattern on described mould band, in the below of the base film that is coated with photo-sensitive resin with a back pressure element back pressure under, make microstructure decorative pattern, pattern rolling on the described mould band, impress on described photo-sensitive resin;
C. it is mobile and keep the preliminary lamination of the integrality of substrate surface microstructure shape simultaneously to make it be solidified to form tool not with the described photo-sensitive resin of primary solidification UV light irradiation in described mould band moulding process;
D. the preliminary lamination that makes described base material and described photo-sensitive resin makes described photo-sensitive resin and described base material gummed, solidifies to make the lamination finished product through a plurality of curing molding UV lamps.
2. the mould band of photo-sensitive resin surface micro-structure according to claim 1 is to the forming method of running roller, it is characterized in that described gluing feed roller wheels comprise: a gluing wheel revolves a side of being located at described base material, one lower roll wheel revolves the opposite side of being located at described base material side by side and corresponds to described gluing wheel, and the one brush rubber tire is parallel is hubbed at the side of described gluing wheel and photoresist is attached on this gluing wheel; By described gluing wheel described photoresist is coated on the described base material of institute's charging equably.
3. the mould band of photo-sensitive resin surface micro-structure according to claim 2 is to the forming method of running roller, it is characterized in that described lower roll wheel overlaps a scraper plate, and divide into a jelly accumulator tank, and the unnecessary jelly that lower roll wheel is accepted is struck off, be recovered among the jelly accumulator tank.
4. the mould band of photo-sensitive resin surface micro-structure according to claim 1 is to the forming method of running roller, it is characterized in that described back pressure element comprises a back pressure flat board, be provided with described primary solidification UV lamp in the plate and make UV light that the UV lamp is shone directly pass a described base material of plate mouth directive of described back pressure flat board and photo-sensitive resin with the described photoresist of primary solidification.
5. the mould band of photo-sensitive resin surface micro-structure according to claim 1 is characterized in that to the forming method of running roller described back pressure element comprises: a clear hollow cylinder be hubbed at accordingly described shaping mould band roller set a below running roller downside with back pressure be coated with photoresist described base material that between described below running roller and described hollow cylinder; And one the UV lamp be arranged in the inside of described hollow cylinder with the photoresist on the described base material of irradiation, heating, primary solidification institute back pressure.
6. the mould band of photo-sensitive resin surface micro-structure according to claim 1 is characterized in that to the forming method of running roller the back pressure element of described shaping mould band roller set comprises: one is installed in the opposite side of described format roll wheels with being the hollow cylindrical tube axially parallel; Its both sides of described surperficial primary solidification UV lamp are installed between a pair of fixed lamp-socket, make two fixed lamp-sockets be installed on a pair of fixed pedestal, and the circumferential outer edge in described two fixed lamp-sockets articulates pair of bearings respectively, outer rim in described two bearings stably installs described hollow cylindrical tube, and a drive end that makes described hollow cylindrical tube connects a driver and changes, and turns with motor interlock; Described hollow cylindrical tube end in addition then is articulated on the base; Because described surperficial primary solidification UV lamp is installed in the described hollow cylindrical tube, described shaping mould band with its with on microstructure floral designs rolling, when impressing the photo-sensitive resin on being coated on plastic basis material, described surperficial primary solidification UV lamp is from the outwards ultraviolet ray of projection of hollow cylindrical tube, and the surface to this photo-sensitive resin imposes the surface cure moulding in real time.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100083175A CN100437155C (en) | 2006-02-17 | 2006-02-17 | Resin layer surface micro structure mould-band rolling wheel shaping method and optical film |
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| CNB2006100083175A CN100437155C (en) | 2006-02-17 | 2006-02-17 | Resin layer surface micro structure mould-band rolling wheel shaping method and optical film |
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| CN100437155C true CN100437155C (en) | 2008-11-26 |
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