CN103969716A - Anti-dazzle Film Manufacturing Method And Manufacturing Device - Google Patents
Anti-dazzle Film Manufacturing Method And Manufacturing Device Download PDFInfo
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- CN103969716A CN103969716A CN201410043075.8A CN201410043075A CN103969716A CN 103969716 A CN103969716 A CN 103969716A CN 201410043075 A CN201410043075 A CN 201410043075A CN 103969716 A CN103969716 A CN 103969716A
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Abstract
The invention can play agglutination function of particles to the extreme and thus provides an anti-dazzle film manufactured at a high rate and uniformly. An anti-dazzle film manufacturing device is at least provided with a coating device (16) coating coating liquid containing particles on a moving belt-shaped sheet (12); and a drying device (18) used for drying the coated coating film. The drying device (18) isprovided with an agglutination line (18A) enabling the sheet (12) to incline and move at a first inclination angle relative to the horizontal plane, so that particles in the coating film are agglutinated and drying is performed; and a dissolution inhibiting line (18B) enabling the sheet (12) to be moved at a second inclination angle smaller than the first inclination angle, so that the dissolution of the aggregated body formed by the agglutination of the particles is inhibited and drying is performed at the same time.
Description
Technical field
The present invention relates to manufacture method and the manufacturing installation of anti-glare film, particularly relate to manufacture method and the manufacturing installation of the anti-glare film using in the display equipments such as liquid crystal indicator.
Background technology
In the display equipments such as liquid crystal indicator, in order to prevent mirroring because of the image that the reflection of outdoor light causes, use anti-glare film.Known anti-glare film is roughly divided into following 4 kinds.; (1) by the coating fluid of the particle that to sneak into respect to the thickness of antiglare layer be greater particle size being coated on supporter and dry; thereby particle is given prominence to, formed concave-convex surface, make " particle utilization, the outside scatter-type anti-glare film " of outdoor light scattering at this male and fomale(M&F) place; (2) by coordinating adhesive ingredients and the slightly different particle of refractive index around, it is embedded in film, thereby makes " particle utilization, the scattering-in type anti-glare film " of outdoor light in film inscattering; (3) be to become island shape compared with the particles aggregate of small particle diameter by making with respect to the thickness of antiglare layer, thereby by " particle utilization, the aggegation type anti-glare film " of outdoor light scattering; (4) make the resin-phase of more than two kinds that refractive index difference and compatibility are few separate, by " resin utilization, the type that the is separated anti-glare film " of outdoor light surface scattering.
These anti-glare films are manufactured as follows: after coating fluid is coated on film, after utilizing drying device that coating fluid is dry, coated film is carried out to dura mater, thereby manufacture.In the manufacture of this anti-glare film, in order to utilize the short drying device closely of drying line length to carry out high-speed production, expect, by the mixture ratio of the dry wind in enhancing drying device, raising baking temperature, the very fast solvent becoming dry of raising, to accelerate the rate of drying of solvent from dried coating film.But, now can there is following problem: because inhomogeneous caused Marangoni Convection (Marangoniconvection) or the Rayleigh convection current (Rayleigh convection) of dry wind or environmental gas CONCENTRATION DISTRIBUTION are easy to occur uneven drying, cannot realize uniform optical property in face.Therefore, speed of production has boundary, and the problem of the anti-glare film with high anti-glare cannot production efficiency be manufactured in existence well.
Particularly (3) " particle utilization, aggegation type anti-glare film ", if not aggegation of particle can show anti-glare hardly, therefore must spend particle and carry out the needed time of aggegation in drying device.Therefore, not only need to prevent the time of uneven drying, also need to guarantee aggegation required time, there is restriction in speed of production (miniaturization of drying device size) therefore.
In order to address this problem, in patent documentation 1, proposed by film is tilted to 30 ° above and 90 ° be dried below, make particle precipitation, thereby promote the method for aggegation.
Prior art document
Patent documentation
Patent documentation 1: TOHKEMY 2010-54737 communique
Summary of the invention
Technical problems that invention pre-solves
But, as described in patent documentation 1, though exist only film base material is tilted to 30 ° above and 90 ° be dried below, also cannot manufacture the problem of the anti-glare film with high anti-glare.Particularly, the requirement of attenuate anti-glare film is in recent years very strong, need to make little particle (mean grain size of for example particle be more than 1 and 5 μ m following) aggegation, form large agglutination body.
When film base material is moved, while manufacturing continuously anti-glare film, if can not make at short notice particles aggregate, must extend drying line, also there is problem arranging aspect space of installation cost or device.
But, in the situation of little particle, compared with macroparticle, if owing to can not making a large amount of particles aggregate can not bring into play anti-glare, therefore as why not extend drying line and bring into play at short notice longways agglutination to greatest extent and become important problem.
In addition, in the manufacture of anti-glare film, in requiring throughput rate to manufacture well to there is the anti-glare film of high anti-glare, also require according to the anti-dazzle performance of object control.
The present invention completes in view of such situation, and its object is to provide the agglutination that can control particle, therefore not only can improve anti-glare film throughput rate, can also control manufacture method and the manufacturing installation of the anti-glare film of the anti-dazzle performance of anti-glare film.
For the method for technical solution problem
In order to reach described object, the manufacture method of the anti-glare film of a mode of the present invention is the anti-glare film manufacturing method that at least comprises the manufacture anti-glare film of following painting process and drying process, painting process, in this operation, on mobile belt type film base material, coating contains the coating fluid that mean grain size is the inorganic or organic filler below 10 μ m; Drying process, in this operation, the coated film being coated with in painting process is dry; Wherein, drying process possesses following operation: aggegation operation, in this operation, by making described film base material with respect to the horizontal plane with the 1st inclined at inclination angles mobile, thereby makes the particles aggregate in described coated film while coated film is dried; Dismiss and suppress operation, in this operation, by the 2nd angle of inclination moving film base material that has reduced with more described the 1st angle of inclination to tilt, thereby suppress the agglutination body dismission that particles aggregate forms while coated film is dried.
Wherein, mean grain size is that 10 μ m do not comprise 0 μ m below.
Here, " aggegation " of particle refer to and maintaining under the shape of each particle and the state of size, and more than 2 particle occurs fit, forms the phenomenon of 1 agglomerate (agglutination body) with the form of population.In addition, " dismission " of particle refer to the form of population and occur to leave between fit particle to the phenomenon of distance that is not looked at as 1 agglomerate (agglutination body).
For example, when the size (mean diameter) of population A and population B is designated as to RA, RB, the situation of being spaced apart of population A and population B (RA+RB)/below 2 can be regarded as to aggegation, regard the situation as (RA+RB)/more than 2 as dismission.
The present inventor obtains following new opinion: in drying process, when on one side making to have when being inclined relative to horizontal and moving containing the moving direction of the film base material of the coated film of particle, can promote the aggegation of particle, and in the time maintaining the time lengthening of inclination, the agglutination body of temporary transient aggegation is dismissed.
Wherein, the moving direction of film base material is inclined relative to horizontal comprise to make its towards situation about tilting, make its towards situation about having a down dip the two.
But, towards situation about having a down dip be compared to towards situation about tilting can further accelerate aspect aggegation speed more preferred.
The reason of dismissing occurs about the agglutination body of temporary transient aggegation, and inventor thinks that also maintain the inclination of film base material after forming agglutination body time, agglutination body moves in coated film, generation collision and being disbanded between agglutination body.
Therefore infer, when forming after agglutination body while reducing to tilt, suppress agglutination body mobile, can also suppress dismission, the increase agglutinating performance of agglutination body, can obtain by experiment inferred result.In addition, also obtain by changing from aggegation operation to dismissing some transfer time that suppresses operation, can manufacture the opinion of the anti-glare film that anti-dazzle performance is different.
The present invention completes in view of these opinions, in aggegation operation by be dried to promote the aggegation of particle with the state of inclination film base material, dismissing the dismission that suppresses in operation the agglutination body that has been dried to suppress aggegation by the state of the inclination to reduce film base material.
Thus, owing to can controlling the agglutination (aggegation speed etc.) of particle, therefore can improve the throughput rate of anti-glare film.
In the manufacture method of the manner, preferably further possesses following operation: dismiss and start to know operation, in this operation, in aggegation operation, maintained the 1st angle of inclination of film base material, know agglutination body and start the time point of dismissing; Point control transfer time operation, in this operation, to start to know dismission start time point that operation knows by dismission as branch point, by suppressing to dismissing time point that time point control that operation shifts is branch point from aggegation operation, early than the time point of branch point, be later than any time point the time point of branch point.
Like this, by by from aggegation operation, to dismissing, to suppress point control transfer time of operation be the agglutination body branch point that starts to dismiss, early than the time point of branch point, be later than any time point the time point of branch point, can suitably regulate the size of agglutination body.Thus, also can at random control the anti-dazzle performance of anti-glare film.
Wherein, agglutination body start dismiss branch point can by line or off-line know, be at length described later.
Here, point control transfer time operation is not limited to and suppresses the time point of operation and control being transferred to dismiss from aggegation operation in film base material moves, and also comprises the movement of stopper film base material, dismisses the time point that suppresses operation and control being transferred to from aggegation operation.In addition, for example identical creating conditions of the anti-glare film of manufacturing etc., put immovable situation to dismissing the transfer time of suppressing operation from aggegation operation, also comprise fixing transfer time of point.
In addition, in the manufacture method of the manner, in point control transfer time operation, suppress operation and shift to dismissing from aggegation operation during preferably in branch point.
Thus, because the time point that can start to dismiss at agglutination body suppresses operation transfer from aggegation operation to dismissing, therefore can make the size of agglutination body for maximum.
Its result, owing to can making the size of agglutination body for maximum, therefore can improve anti-glare.
By the way, if before branch point after (in aggegation process) or branch point (in dismission process) suppress operation and shift to dismissing from aggegation operation, the size of agglutination body diminishes.
In the manufacture method of the manner, the scope more than the mean grain size of particle is preferably 1 μ m and below 5 μ m.In so little particle range, need to make a large amount of particles aggregate, form large agglutination body, the present invention is more effective.
In the manufacture method of the manner, preferably in coating fluid, add macromolecular structure promoter.By add macromolecular structure promoter in coating fluid, can further promote aggegation, can further suppress the dismission of agglutination body simultaneously.
In the manufacture method of the manner, the 1st angle of inclination of the film base material of aggegation operation is preferably 30 ° of above and 90 ° of following scopes, the 2nd angle of inclination of dismissing the film base material that suppresses operation be preferably 0 ° above and be less than 30 °.
So, by film base material is inclined relative to horizontal more than 30 °, the particle in coated film is subject to the impact of external energy gravity, on film base material, moves to moving direction, and aggegation is promoted.In aggegation operation for promoting that the preferred angle of inclination of aggegation is that 60 ° of above, particularly preferred angles of inclination are more than 80 °.
In addition, in the time film base material inclination being with respect to the horizontal plane reduced to be less than 30 °, the agglutination body that can suppress to be formed in coated film moves on film base material, can significantly suppress the dismission of agglutination body.To dismiss the preferred angle of inclination that suppresses in operation the dismission for suppressing agglutination body be scope more than 0 ° and below 10 °, be particularly preferably 0 ° (level).
In order to reach described object, the manufacturing installation of the anti-glare film of another mode of the present invention is the manufacturing installation that at least possesses the anti-glare film of the manufacture anti-glare film of following apparatus for coating and drying device, apparatus for coating, its coating on mobile banded film base material contains the coating fluid that mean grain size is the inorganic or organic filler below 10 μ m; Drying device, it is dry by the coated film being coated with by described apparatus for coating, and wherein, drying device possesses: aggegation line, it makes film base material with respect to the horizontal plane with the 1st inclined at inclination angles mobile, thereby makes the particles aggregate in coated film while described coated film is dried; Suppress line with dismissing, its 2nd angle of inclination moving film base material to have reduced compared with the 1st angle of inclination to tilt, occurs to dismiss while coated film is dried thereby suppress agglutination body that particles aggregate forms.
According to the manufacturing installation of the manner, by making film base material tilt, promote the aggegation of particle in aggegation line, dismissing the angle of inclination that reduces film base material in suppressing line, suppress the dismission of the agglutination body that aggegation forms.
Thus, owing to can suppressing the agglutination (aggegation speed etc.) of particle, therefore can improve the throughput rate of anti-glare film.
In the manufacturing installation of the manner, preferably further possess: dismiss and start to know mechanism, it starts the time point of dismissing for know agglutination body in the case of the 1st angle of inclination that maintains aggegation line; With point control transfer time mechanism, it is for to start to know dismission start time point that mechanism knows by dismission as branch point, suppress by dismissing from aggegation alignment time point that time point control that line shifts is branch point, early than the time point of branch point, be later than any time point the time point of branch point.
So, start to know mechanism and point control transfer time mechanism by further possessing the dismission of knowing from putting the transfer time of aggegation alignment dismission inhibition line, can suitably regulate the size of agglutination body, therefore also can control the anti-dazzle performance of anti-glare film.
In the manufacturing installation of the manner, point control transfer time mechanism preferably possesses the inclined angle regulating mechanism at the 1st angle of inclination that regulates the film base material in aggegation line and regulates any of aggegation line length governor motion of the line length in aggegation line.
By regulating at least 1 in the 1st angle of inclination of aggegation line and the line length of aggegation line, can regulate from aggegation alignment and dismiss some transfer time that suppresses line.Thus, can suitably regulate the size (being anti-dazzle performance) of agglutination body.
In the manufacturing installation of the manner, preferably in coating fluid, add macromolecular structure promoter.In addition, the mean grain size of preferred particle is the scope more than 1 μ m and below 5 μ m.
In addition, the 1st angle of inclination of the film base material in aggegation line be 30 ° of above and 90 ° of following scopes, more preferably 60 ° above, be particularly preferably more than 80 °.In addition, dismiss the 2nd angle of inclination that suppresses the film base material in line be preferably 0 ° above and be less than 30 °, more preferably 0 ° of above and 10 ° of following scope, be particularly preferably 0 ° (level).
Invention effect
According to the manufacture method of anti-glare film of the present invention and manufacturing installation, owing to can controlling the agglutination of particle, therefore not only can improve the throughput rate of anti-glare film, can also control the anti-dazzle performance of anti-glare film.
Brief description of the drawings
Fig. 1 be pattern represent the figure of an example that the line of the manufacturing installation of anti-glare film forms
Fig. 2 is the figure that represents an example of inclination angle regulator
Fig. 3 is the figure that represents an example of parallax length adjustment device
Fig. 4 represents to utilize parallax length adjustment device to regulate the key diagram of parallax length
Fig. 5 be pattern represent the figure of the another way of the drying device of the manufacturing installation of anti-glare film
Fig. 6 is the relation curve between the inclination time of aggegation line and the anti-glare of anti-glare film
Fig. 7 is after just coating, dry after 10 seconds, dry microphotograph after 20 seconds
Fig. 8 is the figure that represents the volume of agglutination body and an example of anti-glare degree
Symbol description
The line of 10 manufacturing installations
12 tablets
14 send machine
16 apparatus for coating
Point control 17 transfer times mechanism
18 drying devices
18A aggegation line
18B dismisses and suppresses line
The shell of 19 aggegation lines
20 inclined angle regulating mechanisms
21 parallax length adjustment mechanisms
22 coiling machines
24 guide rollers
25 dura mater devices
26 dispense tips
27 dismiss the shell that suppresses line
28 backing rolls
30 decompression chamber
36 dancer rools (dancer roll)
38 storage aggegation lines suppress the two shell of line with dismissing
Embodiment
Below the preferred implementation of the manufacture method to anti-glare film of the present invention and manufacturing installation describes with reference to the accompanying drawings.
Fig. 1 be pattern represent anti-glare film manufacturing installation line form figure.
As shown in Figure 1, the line 10 of manufacturing installation mainly by banded hyaline membrane base material (hereinafter referred to as tablet) 12 is sent to the machine of sending 14 on line, by coating fluid be coated on apparatus for coating 16 on tablet 12, to be coated with coated film carry out dry drying device 18, dura mater device 25 and coiling machine 22 that the coated film of drying is carried out to dura mater form.
Send and in machine 14, tablet 12 is wound in to web-like and installs.This tablet 12 is sent from sending machine 14, delivers to successively apparatus for coating 16, drying device 18, dura mater device 25, after implementing various processing, batches with coiling machine 22.Symbol 24 is guide rollers that the tablet 12 of movement along the line is guided.
In addition, the formation of line 10 is not limited to the formation shown in Fig. 1, can also be assembled with except Fig. 1 other device etc. variety of way.
Apparatus for coating 16 is the devices that are coated with coating fluid on the surface of tablet 12.In coating fluid, being evenly mixed with mean grain size is the inorganic or organic filler of the light transmission below 10 μ m, this particles aggregate, on the surface of tablet 12, form concavo-convex, thereby possess anti-glare.
In inorganic particulate and organic filler, from more preferably organic filler of following reason.
The mean grain size of the organic filler more deviation of bias free, scattering properties is less, and it is easy that the design of haze value becomes.In addition, make the adhesive resin organic filler close with refractive index of particle combination by use, can suppress scattering-in, " the dense degree of black " good anti-glare film is provided, more favourable than inorganic particulate in this regard.
(organic filler)
As the organic filler of light transmission, use polymethylmethacrylate particle (refractive index is 1.49), crosslinked poly-(acrylic acid-styrene) copolymer particle (refractive index is 1.54), melamine resin particle (refractive index is 1.57), polycarbonate particle (refractive index is 1.57), polystyrene particle (refractive index is 1.60), crosslinked polystyrene particle (refractive index is 1.61), particulate polyvinyl chloride (refractive index is 1.60), benzoguanamine-melamine formaldehyde (MF) particle (refractive index is 1.68) etc.
The shape of organic filler can be used any in just spherical or unsetting.When unsetting, mean grain size is used equal-volume equivalent spherical diameter to try to achieve.Wherein, preferably use crosslinked polystyrene particle, crosslinked poly-((methyl) acrylate) particle, crosslinked poly-(acrylic acid-styrene) particle.Preferably regulate the refractive index of each light transmission particle and the refractive index of adhesive resin from these organic fillers, selected.
In addition, also can and use the different organic filler of more than two kinds of mean grain size.Utilize the light transmission particle that mean grain size is larger can give anti-glare, utilize the light transmission particle that mean grain size is less can reduce surperficial harsh feeling.
In the present invention, mean grain size represents primary particle size.As the assay method of the mean grain size of organic filler, can apply assay method arbitrarily, there is following methods: utilize coulter counter method to measure the size-grade distribution of particle, measured distribution is converted into population and distributes, obtained the method for particle diameter by the distribution of particles of gained; Or utilize transmission electron microscope (multiplying power is 500,000～2,000,000 times) to observe particle, and observe 100 particles, get the method for its mean value as mean grain size.Wherein, in the present invention, mean grain size is used the value obtaining by coulter counter method.
As the mean grain size of the particle containing in coating fluid, use the particle diameter below 10 μ m, but in embodiments of the present invention, taking mean grain size than (6～8 μ m) the little particle more than 1 and below 5 μ m describe as example conventionally.By using mean grain size little particle, can reduce the thickness of anti-glare film, during with large particle compared with, must make a large amount of particles aggregate, the present invention is more effective.
As the preferred particle concentration scope of the particle containing in coating fluid, be preferably 3～10 quality % left and right with respect to coating fluid.
(macromolecular structure promoter)
Preferably in coating fluid, add macromolecular structure promoter.By add macromolecular structure promoter in coating fluid, can be in further promoting the aggegation of particle, further suppress the dismission of the agglutination body that particles aggregate forms.
As macromolecular structure promoter, for example, can enumerate laminated clay compound (smectite etc.), organic metal clay, cellulose-based macromolecule (acetylbutyrylcellulose (CAB), cellulose acetate propionate (CAP) etc.), nano silicon oxide.
Smectite refers to vertical capable, the 311st Page of (strain), clear and on October 15th, 56 Shrink brush version the 26th brush development that publishes altogether according to chemical voluminous dictionary 9() be known as smectite group mineral, form one group of representative mineral of clay.And it all belongs to the layer silicate mineral for three-decker, general formula is used (X, Y)
2~
3z
4o
10(OH)
2mH
2o(W
w) represent.Here X=Al, Fe,
iII, Mn
iII, Cr
iII; Y=Mg, Fe
iI, Mn
iI, Ni, Zn, Li; Z=Si, Al; W=K, Na, Ca; H
2o=middle water.
The difference of the combination replacing according to the isomorphous in X, Y, Z in addition, can form more kinds of.For example can enumerate the natural smectites such as smectite, smectite magnesium, ferrimontmorillonite, beidellite, aluminium beidellite, nontronite, aluminium nontronite, saponite, aluminium soap stone, hectorite, sauconite, chromium montmorillonite.
In addition, also have the coprecipitated gel of making smectite composition taking water glass, aluminium sulphate, magnesium sulfate, NaOH etc. as raw material, the synthetic synthetic smectite of hydro-thermal reaction that passes through to use autoclave, the mean grain size of synthetic smectite is more than 10 and 100nm is following, the amount of its impurity is fewer than natural smectite in addition, therefore in the manufacture of anti-glare film of the present invention, be compared to natural smectite and more preferably use synthetic smectite.
As the example of synthetic smectite, for example, can enumerate SWF, SWN, SAN, SEN, the Sumecton SA of SPN, Kunimine industry system etc. of Co-op chemical company system.
Cellulose-based macromolecule or organic metal clay are to have hydroxyl and form by hydrogen bond the material that network is polymer structure in solution.Wherein, no matter in coated film hydrogen bond form still do not form, the intensity of hydrogen bond be strong or a little less than, in coated film, can form the material of polymer structure in the category of the present application.
As the preferred interpolation concentration range that makes an addition to the macromolecular structure promoter in coating fluid, be preferably 1～5 quality % left and right with respect to coating fluid.More than reaching 1 quality %, can be easy to form polymer structure, by being no more than 5 quality %, before coating, be difficult to form polymer structure and be coated with and become easy.In addition, by do not form polymer structure before coating, can prevent from occurring coating striped or point defect in the anti-glare film of manufacturing.
The apparatus for coating of coating fluid is not particularly limited, as long as can be taking thickness the degree more than 5 μ m and below 40 μ m be coated with equably the device of coating fluid.For example preferably use extrusion coated device or excellent apparatus for coating.The apparatus for coating 16 of the extrusion type of Fig. 1 possesses dispense tip 26 and backing roll 28, and tablet 12 is wrapped on backing roll 28.Dispense tip 26 forms according to the mode of shooing out coating fluid with film-form to the tablet 12 being wrapped on backing roll 28, and the coating fluid shooing out is crosslinked between the lip front end of dispense tip 26 and tablet 12, forms thus the drop of coating fluid.With respect to the moving direction of tablet 12, decompression chamber is arranged on to the upstream side of lip front end, by this decompression chamber 30 is controlled as negative pressure, prevent that the air of tablet 12 from carrying phenomenon secretly, seek the stabilization of drop.Thus, coating fluid is coated on tablet 12 equably.
Drying device 18 mainly comprises aggegation line 18A, and it is by making tablet 12 tilt and move to moving direction, thereby makes the particles aggregate in coated film while be dried; Dismiss and suppress line 18B, its by reducing to tilt, mobile tablet 12, there is dismission while be dried thereby be suppressed at agglutination body that in coated film, aggegation forms; With point control transfer time mechanism 17, its movement of controlling tablet 12 suppresses to dismissing the time point that line 18B shifts from aggegation line 18A.
Formation for drying coating film in drying device 18 is not particularly limited, and can be known variety of way in the past.But, form the aggegation line 18A of drying device 18 and dismiss and suppress the preferred drying mode that changes in line 18B.
Aggegation line 18A due to the initial stage after just coating dry in the residual solvent of coated film many, be easy to occur uneven drying and for the aggegation of particle need to make line inclination, therefore can preferably use the device of the condensation drying mode shown in Fig. 1.Condensation drying mode is making in tunnel-shaped shell 19, above the upstream side of mobile obliquely upward tablet 12 (coating face side), configure substantially parallel the cold plate 23 as tabular component with tablet 12.And, by utilizing cold plate 23 that the solvent condenses of being evaporated by coated film is reclaimed, thus coated film is dry.Now, preferably utilize infrared heater (not shown) to heat coating face.
In addition, dismiss and suppress in line 18B, because the residual solvent of coated film reduces, is difficult to occur uneven drying, and need to promptly be dried, therefore preferred heated-air drying mode.Heated-air drying mode can adopt following formation: the coating face blowing up to the tablet 12 in shell 27 interior movements is stroked dry wind (or hot blast), above tablet 12, with tablet 12, the cowling panel (not shown) being made up of porous plate is set abreast, dry wind is brushed in top to this cowling panel, above tablet 12, with tablet 12, the air regulating board (not shown) being made up of wire gauze is set abreast, dry wind is brushed in the top of this air regulating board.
Wherein, aggegation line 18A not only refers to the region with shell 19, also refers to line that tablet 12 moves obliquely, from apparatus for coating to the line region that tilts to reduce.In addition, dismiss inhibition line 18B and not only refer to the region with shell 27, also refer to extremely be dried the line region of finishing after aggegation line 18A.
Parallax length adjustment mechanism 21 and the dancer rools 36 of the line length of the main inclined angle regulating mechanism 20 by adjusting aggegation line 18A angle of inclination of point control transfer time mechanism 17 arranging in drying device 18 in addition,, the aggegation line 18A that adjusting is tilted form.
As shown in Figure 2, inclined angle regulating mechanism 20 can regulate the mode at the angle of inclination that tablet 12 moves to form according to the position by changing guide roller 32.That is, the bearing portion 40 of guide roller 32 along track 42 by free sliding support, the excellent bar 44a of cylinder 44 is installed on bearing portion 40 simultaneously.Thus, by making excellent bar 44a flexible, can make bearing portion 40 move up in the side of track 42.Therefore,, because move to horizontal direction the position of guide roller 32, therefore can freely regulate tablet 12 tilt angle theta.
In order effectively to give to coating particle in the coated film on tablet 12 external energy that becomes aggegation and move inducement, preferably the tilt angle theta of tablet 12 is more than 30 °.
Thus, because tablet 12 moves towards the state tilting with moving direction (the 1st moving direction), therefore the particle in the coated film on tablet 12 is that gravity is rearward drawn close, contacted with other particle by external energy, and aggegation is promoted.
Now, on the angle of inclination of tablet 12, be limited to 90 °, in the scope more than 30 ° and below 90 °, can be according to setting as the size of target anti-glare.For example, in the time wanting to give large anti-glare, preferably tilt angle theta is set as 60 ° above, be preferably set as significantly more than 80 °.But, while wanting to give less anti-glare according to object, preferably tilt angle theta is set as being less than 60 °, is preferably set to and is less than 40 °.
In addition, in online 10 running, the angle of inclination of tablet 12 can be fixed, also can make its variation.Make its when variation, can line on or measure off-line the anti-glare of dried anti-glare film, change to reach target anti-glare (size of agglutination body) according to its measurement result.
In addition, inclined angle regulating mechanism 20 is not limited thereto, and can be variety of way as long as regulating the mechanism at aggegation line 18A pitch angle.The mode that in addition, also can reach predefined angle according to the tilt angle theta of tablet 12 is fixed the position of guide roller 32.
As shown in Figure 3, parallax length adjustment mechanism 21 is arranged on the downstream of the moving direction of the tablet of inclined angle regulating mechanism 20, by be connected in tablet 12 multiple roller 38A, 38B, 38C and this roller of support 38A, 38B, 38C excellent bar 40A, 40B, 40C and this rod bar flexible cylinder unit 42A, 42B, 42C are formed.
Fig. 3 arranges the 1st～3rd 3 roller 38A, 38B, the situation of 38C at the upstream side of the moving direction from tablet 12 (the 1st moving direction) towards downstream, but is not limited to 3.
And then, as shown in Figure 4 (A), in the time that the parallax length of aggegation line 18A is only extended to L1, only similarly extend excellent bar 40A, 40B, the 40C of the 1st～3rd roller 38A, 38B, 38C according to the mode that maintains tilt angle theta.Thus, aggegation line 18A is only extended to the interval L1 of guide roller 32 and the 1st roller 38A.
As shown in Fig. 4 (B), in the time the parallax length of aggegation line 18A only being extended to the L2 growing than L1, from the state of Fig. 4 (A), further extend excellent bar 40B, the 40C of the 2nd and the 3rd roller 38B, 38C according to the mode that maintains tilt angle theta.Thus, aggegation line 18A is only extended to the interval L2 of guide roller 32 and the 2nd roller 38B.
As shown in Fig. 4 (C), in the time the parallax length of aggegation line 18A only being extended to the L3 growing than L2, from the state of Fig. 4 (B), further extend the excellent bar 40C of the 3rd roller 38C according to the mode that maintains tilt angle theta.Thus, aggegation line 18A is only extended to the interval L2 of guide roller 32 and the 3rd roller 38C.
And then the variation of the tablet portable cord length occurring by change parallax length absorbs by dancer rools 36.
In addition, parallax length adjustment mechanism 21 is not limited thereto, and can be variety of way.In addition, reach the mode of predefined length according to parallax length, the prolongation degree of fixing the 1st～3rd roller before also can online 10 running.
Thus, in online 10 running, also can make the parallax length change of tablet 12.Make its when variation, can, according on line or measure off-line the anti-glare of dried anti-glare film, make it change to reach target anti-glare (size of agglutination body) according to its measurement result.
Start to know mechanism for know the dismission of time point that agglutination body starts to dismiss in the case of the inclination that maintains aggegation line, the mechanism on off-line and line is described.
While evaluating the anti-glare height of anti-glare film by knowing off-line the size of particles aggregate body, by the whole inboard blacking contrary with coating face of anti-glare film.Then, utilize the naked fluorescent light (800cd/m that there is no spill shield from the angle projection of 5 °
2) and the fog-level of reflected image while observing from the angle of-5 °, and the fog-level of reflected image while observing from the angle projection of 45 ° and from the angle of-45 °, evaluate.In addition, for cover fluorescent light both sides, to make the width of fluorescent light be 4mm the situation that mirrors thin line source, preferably carry out similarly.
Thus, can be configured for knowing off-line as in the time maintaining the inclination of aggegation line 18A, be formed at the dismission that agglutination body in coated film starts the branch point (in other words for agglutination body becomes maximum time point) of the time point of dismissing and start to know mechanism.
In the time knowing the agglutination body size of particle online, for example in point control transfer time operation, online monitor is set, coated surface side is observed, can monitor state of aggregation (promote, dismiss).In addition, aggegation size can be carried out graphical analysis by the area of the agglutination body to online observation image, can calculate size.As on-line monitoring device, for example, can implement by following formation.
(on-line monitoring device formation)
Microscope: KEYENCE company VH series processed,
Lens: the Wide Range processed Zoom Lens(VH of KEYENCE company series),
Light source: metal halide lamp
Thus, can be configured for knowing online as the dismission that is formed at agglutination body in coated film and starts the branch point (in other words for agglutination body becomes maximum time point) of the time point of dismissing in the time maintaining the inclination of aggegation line 18A and start to know mechanism.
It is described above that agglutination body starts the branch point of dismissing, and all can know, but preferably make the relation between angle of inclination and parallax length and the anti-glare degree of anti-glare film of tablet 12 by pilot study or the experiment etc. of off-line in advance by online and off-line.
In addition, while wanting critically to understand being related between the size (and volume synonym) of agglutination body and anti-glare degree, more preferably determine concavo-convex area (surface area of irregular part) and the height on dried film surface with surfaceness instrumentation, carry out graphical analysis, thereby calculate the volume of agglutination body, make the relation between itself and anti-glare degree.
Fig. 8 is an example that represents the relation between volume and the anti-glare degree of agglutination body, can use following device and method for making making.
Surfaceness meter: Zygo company system, New View series
Graphical analysis: the MetroPro processed of Zygo company
Anti-glare degree: JIS-Z-8741(1997) (JIS:Japan Industrial Standards)
So, in the time having known in advance being related between the size of tablet 12 angles of inclination, parallax length and agglutination body and anti-glare degree, by controlling aggegation operation to dismissing some transfer time that suppresses operation, can precision suitably regulate well the size of agglutination body.Thus, can control the agglutination (aggegation speed etc.) of particle, therefore not only can improve the throughput rate of anti-glare film, can also control the anti-dazzle performance of anti-glare film.
Therefore,, when wish forms large agglutination body, the time point that can also agglutination body occurs to dismiss is branch point, is transferred to and dismisses the mode controls metastasis time point control gear 17 that suppresses line 18B from aggegation line 18A according to the movement of tablet 12.In addition, how much the time point that starts to dismiss by autoagglutinin shifts to an earlier date or how much to delay to control from aggegation line 18A and suppress line 18B transfer to dismissing, and can suitably regulate the size of agglutination body.
Dura mater device 25 shown in Fig. 1 uses ultraviolet ray to irradiate (UV) device in the time making with the resin of light dura mater voltinism as the resinous principle of coating fluid, uses heating arrangement while using hot dura mater voltinism resin.
Then, the effect of the line 10 of the manufacturing installation of anti-glare film is as constructed as above described.
In apparatus for coating 16, be coated with from sending the tablet 12 that machine 14 sends the coating fluid (painting process) that contains particle (for example mean grain size of 2.5 μ m).In coating fluid, preferably add smectite.
Then, the coated film dry (drying process) of tablet 12 will be coated by drying device 18.In this drying process, tablet 12 for example, is moved in the aggegation line 18A of (90 °) that tilts towards moving direction by inclined angle regulating mechanism 20 on one side, carry out the dry of coated film on one side.Thus, the particle on tablet 12 is subject to the impact that external energy is gravity, on tablet 12 to side shifting after moving direction.That is, because the particle in coated film has been endowed the particle displacing force (gravity) of the inducement that becomes aggegation, therefore particle moves on tablet 12, and aggegation is promoted.Thus, can by the particle in coated film at short notice aggegation to the region with abundant anti-dazzle performance.
So, by causing and promote the aggegation of particle, can improve aggegation speed.In addition, by producing energetically the aggegation of particle, can on whole of coated film, produce uniform aggegation.Thus, can be formed with concavo-convex anti-glare film uniformly with high speed of production manufacture.
But in the time continuing mobile tablet 12 under the state that is maintaining inclination, the agglutination body that aggegation forms starts to dismiss, the size of agglutination body reduces, and anti-glare also reduces.
Therefore, in embodiments of the present invention, by parallax length adjustment mechanism 21 agglutination body be about to start dismiss begin before, the dismission that the movement that makes tablet 12 is transferred to the angle of inclination (the 2nd angle of inclination) for example, tilt with (0 °) that reduced compared with the moving direction angle of inclination of aggegation line 18A (the 1st angle of inclination) suppresses line 18B, is dried.
Thus, in the time that the size of agglutination body reaches maximum, can suppress the dismission of agglutination body while therefore drying coating film can manufacture the anti-glare film that anti-glare is large expeditiously.
In addition, by controlling inclined angle regulating mechanism 20 and parallax length adjustment mechanism 21, can suitably regulate the size of agglutination body, manufacture the anti-glare film with target anti-glare.For example, when start the branch point of dismissing at agglutination body before (in aggegation process) or afterwards (in dismission process) by the movement of tablet 12 from aggegation line 18A to dismissing when suppressing line 18B and shifting, the size of agglutination body becomes than big or small.Therefore, when regulate in aggegation process or in dismission process degree time, owing to can controlling the size of agglutination body, the therefore anti-dazzle degree of the anti-glare film of adjustable manufacturing also.
Finally, in dura mater device 25, coated film is carried out to dura mater.Thus, manufacture anti-glare film, and batch by coiling machine 22.
Fig. 5 is inclined angle regulating mechanism 20 and the parallax length adjustment mechanism 21 that aggegation line 18A is housed in 1 shell 38, dismisses inhibition line 18B, point control transfer time mechanism 17, dancer rools 36 is configured near the outlet of shell 38 simultaneously.
Below the anti-glare film of manufacturing in the present invention is described.
[anti-glare film]
Anti-glare film is to improve LCD(liquid crystal display; Liquid Crystal Display), PDP(plasma display panel; Plasma Display Panel), CRT(cathode-ray tube (CRT); Cathode Ray Tube), EL(electroluminescent cell; etc. electroluminescent) visibility of flat-panel monitor is object; in the one or two sides of the transparent supporting bodies (tablet 12) such as cellulose acylated film, give antiglare layer, and then give anti-reflection layer as required.This anti-glare film can preferably use cellulose acylated film.Below, the film of having given this function is called to anti-glare film.In general, anti-glare film is made up of transparent supporting body and antiglare layer, and hard conating is also set as required sometimes.
As the transparent supporting body of anti-glare film, preferred cellulose acidylate film in LCD purposes, cellulose acetate particularly preferably.When anti-glare film is used for to LCD, at one side, bonding coat etc. is set, is disposed at the most surface of display or the interface of display interior and air.Triafol T is owing to using in the diaphragm of the polarizer of protection polaroid, therefore, from the viewpoint of the thinning of cost, display, preferably anti-glare film of the present invention is directly used in diaphragm.
As the mechanism that film is given to anti-glare, in publication communique, disclose 1) the delustring particle of the particle diameter of scatter visible light is dispersed in bonding agent, form the method for the antiglare layer with concave-convex surface; 2) utilize embossing or sandblast etc. to give concavo-convex method to supporting body surface; 3) give the whole bag of tricks such as concavo-convex method by the phase separation structure effects on surface of coating composition, but adopt delustring particle is scattered in to the method in bonding agent in the present invention.
In the formation of antiglare layer, in order to give anti-glare by forming concave-convex surface, except the bonding agent being formed by resin compound, also use the particulate (matting agent) being formed by resin or mineral compound.In addition, the particulate of the mean grain size less than the bonding agent thickness of antiglare layer is preferably less than 50 volume % of this particulate entirety.Size-grade distribution can be measured by coulter counter method, and distribution is converted into population distribution.The ratio that the thickness (wet coating thickness before dry) of antiglare layer is preferably more than 10 and below 40 μ m of coating film thickness, coating film thickness/mean grain size is preferably more than 3 and below 5 times.
Being used to form in the resin binder of antiglare layer use, from the viewpoint of film strength, the transparency, be preferably used to form the starting material that above-mentioned hard conating uses.
Before the formation of anti-glare film, antiglare layer or after forming; by utilizing any mechanism to carry out saponification processing to the inner face of supporter; in the manufacture of the polaroid that can use in the each purposes taking LCD as representative, as the diaphragm of the polarizer, direct and polarizer laminating in one or two sides.
Particularly for the wide viewing angle of LCD; in the time being sealed with between the liquid crystal cells of liquid crystal and polaroid the poor film of configuration phase; can be in the polaroid on two sides that is disposed at liquid crystal cells; the diaphragm of the air interface side of viewable side polaroid used uses anti-glare film or antireflection film, uses as protective seam becoming on the two sides that on the face between liquid crystal cells and the polarizer, phase retardation film is fitted in respectively to each polarizer of its opposing face.The polaroid of this formation have with existing polaroid condition of equivalent thickness in, can give the function such as wide viewing angle, low reflection, very preferred in high function LCD purposes.
Embodiment 1
In order to explain the present invention, below enumerate embodiment and describe, but the present invention is not defined in these.
In the test of embodiment, utilize the movement of tablet to suppress to dismissing the time point difference that line 18B shifts from aggegation line 18A, why not same the anti-glare of the anti-glare film that research institute manufactures has.In addition, be added with the situation of smectite and do not add smectite in coating fluid, why not same research anti-glare has.
(preparation of coating fluid for antiglare layer)
The composition of < coating fluid a does not add smectite >
For above-mentioned antiglare layer coating fluid, utilizing aperture is that the polypropylene filtrator processed of 30 μ m filters, and preparation is containing the coating fluid before particle, is formed on thus the state that does not positively have particle in the coating fluid dropping into before particle.Then, slowly add following particle until solid component concentration reaches 40 quality %, stir and make for 30 minutes.Particle uses Sekisui Plastics Co., Ltd.'s system.Gained is that 7mPas, surface tension are 22mN/m containing the viscosity of the coating fluid of particle.
< particle composition >
2.5 μ m cross linked acrylic-styrol copolymer particles: refractive index is 1.56(acrylic acid/styrene ratio: 3/7)
The composition of < coating fluid b has added smectite >
In the composition of above-mentioned coating fluid a, add smectite 7.2g, other preparation condition is same with coating fluid a, prepares coating fluid b.Smectite uses the Lucentite STN of Co-op chemical company system.
(test 1)
With the translational speed of the 30m/ minute tablet 12 of Triafol T (TAC) film of thick 80 μ m, the wide 1540mm of mobile Fujiphoto system on one side, be coated with above-mentioned coating fluid b by extrusion coated device 16 on one side.The coating weight of coating on tablet 12 is counted 14 μ m(coating weight: 28mL/m with thickness
2).
Then, on one side tablet 12 being moved to and setting angle of inclination is that the aggegation line 18A of 0 ° (level) is dried on one side, in the time that coated film reaches dry to touch (set-to-touch) state, the dismission that is transferred to level from aggegation line 18A suppresses line 18B, continues dry.In aggegation line 18A, use condensation drying device, suppress to use hot-air drying device in line 18B in dismission., test 1-1 is for add smectite in coating fluid but aggegation line 18A and dismiss that to suppress line 18B are all horizontal situations.
Here " dry to touch " refers to one of drying regime of coated film, is while attempting that finger tip does not have the state of dirt by finger tip contact coated film.
In the line of condensation drying device, be 10 DEG C by the Temperature Setting of cold plate 23, the infrared heater (not shown) of coating face is set as under the environment of 25 DEG C, tablet 12 being passed through.
In hot-air drying device, what use was divided into the first half district of 3m and the later half district of 25m amounts to the shell 27 of 28m, in first half district with the dry wind of 45 DEG C of the mean wind speed baking temperatures of 0.5m/ second, in later half district with the dry wind of 60 DEG C of the mean wind speed baking temperatures of 1.5m/ second.
To being held in the tablet on the backing roll (not shown) of 30 DEG C, use dura mater device 25 with exposure 250mJ/cm
2irradiation ultraviolet radiation carries out dura mater processing.
In addition, the anti-glare film of manufacturing is batched on coiling machine 22.
(test 2-1)
Use does not have the coating fluid a of smectite as coating fluid, and to make tablet 12 be mobile in the aggegation line 18A of 90 ° at angle of inclination while be dried, dismission inhibition line 18B from aggegation line 18A to level in the time that coated film reaches dry to touch state shifts and continues and is dried, different from test 1 on these 2.
(test 2-2)
In test 2-2, make tablet taking angle of inclination as 90 ° are moved after in the time that coated film reaches dry to touch state while utilize hot-air drying device to be dried, in addition, 2-1 is same with testing.
(test 3-1)
Use has been added the coating fluid b of smectite as coating fluid, different from test 2-1 in this.
(test 3-2)
In test 3-2, also make tablet 12 taking angle of inclination as 90 ° are moved after in the time that coated film reaches dry to touch state while utilize hot-air drying device to be dried, in addition, 3-1 is same with testing.
［ test findings ］
Test findings is shown in to Fig. 6 and Fig. 7.
Fig. 6 be by the anti-glare (longitudinal axis) of the inclination time (transverse axis) in test 1, test 2-1, test 2-2, test 3-1, the aggegation line 18A of test in 3-2 and anti-glare film directly relation make the result of curve.But the transverse axis of testing 1 o'clock is not for the inclination time but leveled time.In addition, for anti-glare, to test 1 anti-glare as benchmark, as the anti-glare with respect to test 1 relatively, the anti-glare of evaluation test 2-1, test 2-2, test 3-1, test 3-2.
The photo that Fig. 7 takes for the state of aggregation of the particle in the coated film after 20 seconds after 10 seconds after utilizing apparatus for coating 16 just after coating coating fluid, utilizing microscope to dry beginning, after dry beginning.
As the test 1 from Fig. 6, even in the case of the coating fluid that is added with smectite, while making aggegation line 18A and dismission inhibition line 18B angle of inclination be 0 ° (not tilting) when dry, aggegation is not promoted, and only can obtain low anti-glare.This result also can be confirmed in the microphotograph of the test 1 of Fig. 7, after just coating, after dry 10 seconds, do not generate agglutination body after dry 20 seconds.
As the test 2-1 from Fig. 6, for not adding the coated film of smectite, the angle of inclination that makes aggegation line 18A is 90 °, in the time dismissing beginning, makes the movement of tablet 12 be transferred to the inhibition line 18B of level, thereby can manufacture the anti-glare film with moderate anti-glare.
Corresponding thereto, in the case of the test 2-2 that also tablet angle of inclination is maintained to 90 ° after dismission starts, the agglutination body forming is dismissed, the size of agglutination body slowly reduces.This fact also can be confirmed in the microphotograph of the test 2-2 of Fig. 7, and from being just applied to dry 10 seconds, particle carries out aggegation, generates agglutination body, but after dry 20 seconds, agglutination body is dismissed.
From test 3-1 and 3-2 from Fig. 6, for being added with the coated film of smectite, by making aggegation line 18A angle of inclination be 90 °, make the movement of tablet 12 be transferred to the inhibition line 18B of level, thereby can manufacture the anti-glare film with high anti-glare in the time dismissing beginning.It represents by add smectite in coating fluid, can postpone the dismission start time of agglutination body in the aggegation that promotes agglutination body.This result also can be confirmed in the microphotograph of the test 3-2 of Fig. 7, from being just applied to dry 10 seconds, and particles aggregate, generation agglutination body, but after dry 20 seconds, the growth of agglutination body continues.
Corresponding thereto, in the case of the test 3-2 that also tablet angle of inclination is maintained to 90 ° after dismission starts, the agglutination body forming is dismissed, the size of agglutination body slowly reduces.But by adding smectite, owing to growing into larger agglutination body, even if therefore there is the dismission of a little agglutination body, also contribute to the level of anti-glare to improve.
Wherein, the present embodiment medium dip time is described above, in the time that use has the coating fluid of the physical property different from the present embodiment employee (viscosity, surface tension), concentration, mean grain size etc., and inclination asynchronism(-nization).That is, the viscosity of for example solution more fluid resistance more plays a role, and therefore can hinder Particles Moving and be difficult to aggegation, and therefore, in the high solution of viscosity, the inclination time, the longer the better.In addition, particle diameter is less, needs to make more particles aggregate, and therefore tilting, the time, the longer the better.When the solid component concentration in dry progress, coated film increases, coating film thickness is while reducing, because particle in film is difficult to motion, therefore, in the time that rate of drying is fast, need to extends the inclination time, wait for particle generation aggegation.As mentioned above, agglutination body needed inclination time of growing is subject to used solution physical property or the impact of particle diameter, drying condition etc.
Claims (12)
1. the manufacture method of an anti-glare film, its anti-glare film manufacturing method that is the manufacture anti-glare film that at least comprises following painting process and drying process: painting process, in this operation, on mobile belt type film base material, coating contains the coating fluid that mean grain size is the inorganic or organic filler below 10 μ m; Drying process, in this operation, the coated film being coated with in described painting process is dry;
Wherein, described drying process possesses following operation:
Aggegation operation, in this operation, by making described film base material with respect to the horizontal plane with the 1st inclined at inclination angles mobile, thereby makes the particles aggregate in described coated film while described coated film is dried; With
Dismiss and suppress operation, in this operation, move by the 2nd angle of inclination that makes described film base material reduce to tilt with more described the 1st angle of inclination, thereby suppress the agglutination body dismission that described particles aggregate forms while described coated film is dried.
2. the manufacture method of anti-glare film according to claim 1, it further possesses following operation:
Dismission starts to know operation, in this operation, has maintained described the 1st angle of inclination of described film base material in described aggegation operation, knows described agglutination body and starts the time point of dismissing; With
Point control transfer time operation, in this operation, to start to know dismission start time point that operation knows by described dismission as branch point, by suppressing time point that time point control that operation shifts is described branch point from described aggegation operation to described dismission, early than the time point of described branch point, be later than any time point the time point of described branch point.
3. the manufacture method of anti-glare film according to claim 2, wherein, in described point control transfer time operation, suppresses operation at the time point of described branch point from described aggegation operation to described dismission and shifts.
4. according to the manufacture method of the anti-glare film described in claim 1～3 any one, wherein, the mean grain size of described particle is the scope more than 1 μ m and below 5 μ m.
5. according to the manufacture method of the anti-glare film described in claim 1～3 any one, wherein, in described coating fluid, add macromolecular structure promoter.
6. according to the manufacture method of the anti-glare film described in claim 1～3 any one, wherein, described the 1st angle of inclination of the described film base material of described aggegation operation be 30 ° of described the 2nd angles of inclination above and that 90 ° of following scopes, described dismission suppress the described film base material of operation be 0 ° above and be less than 30 °.
7. the manufacturing installation of an anti-glare film, it is at least possessing the manufacturing installation of the anti-glare film of the manufacture anti-glare film of following apparatus for coating and drying device: apparatus for coating, and its coating on mobile banded film base material contains the coating fluid that mean grain size is the inorganic or organic filler below 10 μ m; Drying device, it is dry by the coated film being coated with by described apparatus for coating;
Wherein, described drying device possesses:
Aggegation line, it makes film base material with respect to the horizontal plane with the 1st inclined at inclination angles mobile, thereby makes the particles aggregate in described coated film while described coated film is dried; With
Dismiss and suppress line, described film base material is moved at its 2nd angle of inclination that has reduced to tilt with more described the 1st angle of inclination, occurs to dismiss while described coated film is dried thereby suppress agglutination body that described particles aggregate forms.
8. the manufacturing installation of anti-glare film according to claim 7, it further possesses:
Dismission starts to know mechanism, and it starts the time point of dismissing for know in advance described agglutination body in the case of the 1st angle of inclination that maintains described aggegation line; With
Point control transfer time mechanism, it is for to start to know dismission start time point that mechanism knows by described dismission as branch point, by suppressing from dismissing described in described aggegation alignment time point that time point control that line shifts is described branch point, early than the time point of described branch point, be later than any time point the time point of described branch point.
9. the manufacturing installation of anti-glare film according to claim 8, wherein, described point control transfer time mechanism possess the described film base material that regulates described aggegation line described the 1st angle of inclination inclined angle regulating mechanism and regulate any in the aggegation line length governor motion of line length of described aggegation line.
10. according to the manufacturing installation of the anti-glare film described in claim 7～9 any one, wherein, in described coating fluid, be added with macromolecular structure promoter.
11. according to the manufacturing installation of the anti-glare film described in claim 7～9 any one, and wherein, the mean grain size of described particle is the scope more than 1 μ m and below 5 μ m.
12. according to the manufacturing installation of the anti-glare film described in claim 7～9 any one, wherein, described the 1st angle of inclination of the described film base material on described aggegation line be 30 ° of described the 2nd angles of inclination above and that 90 ° of following scopes, described dismission suppress the described film base materials in lines be 0 ° above and be less than 30 °.
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| JP2013018501A JP5993318B2 (en) | 2013-02-01 | 2013-02-01 | Method and apparatus for producing antiglare film |
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| US6343865B1 (en) * | 1998-02-17 | 2002-02-05 | Dai Nippon Printing Co., Ltd. | Non-glare film, polarizing device and display device |
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| US20050255291A1 (en) * | 2004-03-29 | 2005-11-17 | Dai Nippon Printing Co., Ltd. | Antiglare laminate |
| CN101089659A (en) * | 2006-06-15 | 2007-12-19 | 日东电工株式会社 | Hard-coated antiglare film, and polarizing plate and image display including the same |
| JP5245920B2 (en) * | 2008-09-26 | 2013-07-24 | 凸版印刷株式会社 | Method for producing antiglare film |
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| JP2006122889A (en) * | 2004-06-17 | 2006-05-18 | Fuji Photo Film Co Ltd | Production method of coating film, anti-reflecting film and its production method, polarizing plate using the anti-reflecting film, and image displaying device using these |
| JP2008116182A (en) * | 2006-11-07 | 2008-05-22 | Fujifilm Corp | Drying method for coated film, and optical film |
| JP5348914B2 (en) * | 2008-03-19 | 2013-11-20 | 富士フイルム株式会社 | Anti-glare film and method for producing the same |
| JP2010054737A (en) * | 2008-08-27 | 2010-03-11 | Fujifilm Corp | Antiglare film, method for manufacturing the antiglare film, polarizing plate, and image display device |
| JP6153723B2 (en) * | 2012-06-28 | 2017-06-28 | 日東電工株式会社 | Method for producing antiglare film, antiglare film, polarizing plate and image display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6343865B1 (en) * | 1998-02-17 | 2002-02-05 | Dai Nippon Printing Co., Ltd. | Non-glare film, polarizing device and display device |
| JP2002239432A (en) * | 2001-02-15 | 2002-08-27 | Three M Innovative Properties Co | Coating apparatus and coating method |
| CN1568435A (en) * | 2001-10-11 | 2005-01-19 | 富士胶片株式会社 | Diffusion film comprising transparent substrate and diffusion layer |
| US20050255291A1 (en) * | 2004-03-29 | 2005-11-17 | Dai Nippon Printing Co., Ltd. | Antiglare laminate |
| CN101089659A (en) * | 2006-06-15 | 2007-12-19 | 日东电工株式会社 | Hard-coated antiglare film, and polarizing plate and image display including the same |
| JP5245920B2 (en) * | 2008-09-26 | 2013-07-24 | 凸版印刷株式会社 | Method for producing antiglare film |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5993318B2 (en) | 2016-09-14 |
| JP2014149440A (en) | 2014-08-21 |
| CN103969716B (en) | 2017-09-19 |
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