CN103707669A - Method for manufacturing color filter using receptive layer - Google Patents

Method for manufacturing color filter using receptive layer Download PDF

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Publication number
CN103707669A
CN103707669A CN201310449922.6A CN201310449922A CN103707669A CN 103707669 A CN103707669 A CN 103707669A CN 201310449922 A CN201310449922 A CN 201310449922A CN 103707669 A CN103707669 A CN 103707669A
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CN
China
Prior art keywords
ink
receiving layer
printing
composition
jet
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Pending
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CN201310449922.6A
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Chinese (zh)
Inventor
斋藤亨
藤城光一
浦野和久
安藤智典
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Nippon Steel Chemical and Materials Co Ltd
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Nippon Steel Chemical Co Ltd
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Publication of CN103707669A publication Critical patent/CN103707669A/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • G02B5/223—Absorbing filters containing organic substances, e.g. dyes, inks or pigments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G02F1/133516—Methods for their manufacture, e.g. printing, electro-deposition or photolithography
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/0005—Production of optical devices or components in so far as characterised by the lithographic processes or materials used therefor
    • G03F7/0007—Filters, e.g. additive colour filters; Components for display devices

Abstract

The invention relates to a method for manufacturing a color filter using a receptive layer. The invention provides a method for manufacturing a color filter without wasting substrate by secondary printing, and poor printing can be avoided without influencing substrate in inkjet printing. The method for manufacturing a color filter comprises the following procedures: (a) forming a receiving layer by coating transparent resin composition on a transparent substrate; (b) printing inkjet ink on the receiving layer; (c) checking poor printing; and (d) irritating ultraviolet so as to form pixel pattern on the transparent substrate. When poor printing is confirmed in above procedure (c) of checking poor printing, perform the following procedures: (e) peeling off the receiving layer; (f) coating transparent resin composition again; and (g) printing inkjet ink again, then the pixel pattern is formed in procedure (d) of light curing after procedure (c) of checking.

Description

Use the manufacture method of the colour filter of receiving layer
Technical field
The present invention relates to the manufacture method of colour filter, wherein, use the receiving layer with good ink jet printing on transparent base, to form pattern of pixels, if when generation printing is bad, receiving layer is peeled off from transparent base, again receiving layer be set and form pattern of pixels.
Background technology
The ink-jet method of having used ink-jet printer etc. is not only as the output intent of paper medium in the past, and the formation of each pixel in colour filter, ejection electrically conductive ink and make printed wiring board etc., the utilization in the field of electronic devices such as semiconductor devices in recent years also improves.
This be because, ink-jet method is being controlled aspect amount from the drop of nozzle ejection, ejection position excellently, in every field from now on, it is widely used in expection.
In order to increase the kind as the base material of printing object by the expansion scope of application, and then describe stable shaped pattern of pixels, need the internal homogeneity of base material wetability.So, consider washing base material or carry out surface treatment, make ink become even to the contact angle of base material.For example, utilize that known alkalis washs, apci ion body method, corona discharge, UV treatment etc.
Land are liquid in the ink of base material, by its surface tension with the wetability of base material, determine contact angle, by liquid, determine in right amount moistening diffusion diameter.Yet such surface treatment method need to make the condition that the contact angle of each transparent base is identical set, and is therefore unsuitable for volume production, in addition, control range is also limited.In addition,, while directly printing by ink-jet method on base material, such surface treatment method causes damage to base material sometimes.
On the other hand, pattern, partition that ink-jetting pattern region on base material is in advance outside equipped with difference in height are proposed not, but form, take the receiving layer that organic siliconresin, acrylic resin, polyvinyl alcohol etc. are main component on base material, the method for use ink-jet method printing ink-jet ink on it.Form after receiving layer, can, by prevent the generation of the dispersing of ink, bleeding with ink-jet method printing, can describe stable shape.
Yet, according to the kind that becomes the base material of printing object, there is base material that surcharge is high, need the base material of recycling, in ink jet printing, occur when bad, wish to eliminate its printing bad and base material can be recycled.
For example, in patent documentation 1, propose to have in the manufacture of colour filter only with laser, to remove the defect pixel part that does not form required painted portion, by ink-jet method, give ink and the method for repairing.Yet, when base material is plastic base etc., if irradiate laser, likely affect its surface.
Patent documentation 1: TOHKEMY 2011-191362 communique
Summary of the invention
Therefore, the object of this invention is to provide in a kind of printing utilizing ink-jet method and printing to occur when bad, can not affecting base material, just to eliminate its printing bad, by again printing, can not waste the method that base material is just manufactured colour filter.
The present inventor etc. conduct in-depth research in order to solve above-mentioned problem, it found that, by being situated between by receiving layer on transparent base after printing ink-jet ink, check bad the having or not of printing, when having confirmed bad generation, if peel off together with receiving layer from transparent base, remove the pattern of pixels once forming, again form receiving layer and again form the pattern of pixels of stipulating, to transparent base, do not cause direct infringement just can repair repairerment pattern of pixels, the waste that can save transparent base, has completed the present invention.
, the present invention is a kind of manufacture method of colour filter, its characteristic is, on transparent base, utilize ink-jet method printing ink-jet ink and form in the manufacture method of colour filter of pattern of pixels of regulation, it comprises following operation: (a) on transparent base, be coated with the transparent resin composition with photo-curable, make its receiving layer painting process dry and formation receiving layer, (b) the ink jet printing operation of printing ink-jet ink on receiving layer, (c) check the whether bad inspection operation of printing being caused by jetted ink, and (d) irradiation ultraviolet radiation and receiving layer is solidified, on transparent base, form the photocuring operation of pattern of pixels, while having confirmed that printing is bad in above-mentioned (c) inspection operation, carry out (e) peels off the receiving layer that is printed with jetted ink stripping process from transparent base, (f) be again coated with transparent resin composition, make its dry and receiving layer of forming receiving layer painting process again, and (g) on receiving layer again the ink-jet of printing ink-jet ink republish operation, through (c), check operation, in (d) photocuring operation, form pattern of pixels.
In the present invention, form the transparent resin composition of receiving layer so long as to have the transparent resin composition of photo-curable just passable, preferably use and contain (A) composition: transparent acrylic resin, (B) composition: ultraviolet curing monomer, (C) composition of in molecule, containing 1～6 acrylic: optical free radical polymerization initiator, (E) composition: surfactant and (F) composition: the transparent resin composition of solvent more preferably also comprises (D) composition: without colored particle except mentioned component.
Here, by above-mentioned constituent (A)～(C), be preferably composition (A)～(D) use solvent (F) dissolves, further by adding take, give good coating as object surfactant (E), make liquid transparent resin composition, use slit coater, rotary coating machine, mould to be coated with machine, intaglio plate coating machine, comma coating machine etc. and to coat on base material, temporarily dry, trunk dry (this universe is dry) of vacuum can be carried out, required transparent resin layer (ink-jet receiving layer) can be formed.
Wherein, as the ultraviolet curing monomer of (B) composition and the optical free radical polymerization initiator of conduct (C) composition, be preferably the optical free radical polymerization initiator that the ultraviolet ray irradiation by 250～400nm is generated to free radical kind, or take by utilizing ultraviolet energy to excite the optical free radical polymerization initiator that hydrogen generates free radical kind by force, be the free radical kind that generates be starting point polymerization reaction take place, the so-called polymerization initiator with photo-curable, by utilizing the character of this photo-curable, can give and make the repairing repairerment of receiving layer become possible reparation.In addition, by utilizing the jetted ink (coloring printing ink) of ink-jet method coating to form after the painted areas of regulation, utilize ultraviolet ray to irradiate together with this painted areas transparent resin film is solidified and while becoming receiving layer, can improve and the maintaining of the closing force of the base material that becomes substrate (substrate), film-strength, reliability.If further coordinate liquid polyfunctional acrylic monomer, be applicable to absorbing by reducing the softening point of transparent resin film the diffusion that solvent in coloring printing ink is controlled coloring printing ink.
As transparent resin composition (A) composition: transparent acrylic resin and (B) composition: the mixing ratio of polyfunctional acrylic monomer, with weight portion/5～65, transparent acrylic resin/polyfunctional acrylic monomer=35～95 weight portion, be preferably 40～90 weight portion/10～60 weight portions and coordinate.If the ratio of transparent acrylic resin is less than 35 weight portions, transparent resin film produces viscosity, or after forming, be dried in pattern of pixels, the shape of the painted areas on receiving layer becomes concavity, not preferred.Coordinate (C) composition: during optical free radical polymerization initiator, with respect to total amount 100 weight portions of transparent acrylic resin and polyfunctional acrylic monomer, the mixing ratio of being somebody's turn to do (C) composition is below 15 weight portions, is preferably below 10 weight portions.If be greater than 15 weight portions, sometimes the light transmittance of 400nm become lower than 95% and white balance reduce, therefore not preferred.
As (A) composition: transparent acrylic resin, there is no particular limitation, can use general known transparent acrylic resin.For example, can enumerate the DIANAL series of Li Yang company of Mitsubishi, the HITAROIDO series that Hitachi changes into society etc.In addition, as (B) composition: contain the ultraviolet curing monomer of 1～6 acrylic in molecule, there is no particular limitation, can use general known ultraviolet curing monomer.For example, can enumerate the BEAM SET series of waste river chemistry society, the VISCOAT series of Osaka organic chemistry society, the LIGHT ACRYLATE series of chemistry society of common prosperity society, the NK ESTER series of Xin Zhong village chemical industry society, the NEW FRONTIER series of the first pharmaceuticals industry society, the KAYARAD series of the ARONIX series of the synthetic society in East Asia, Japanese chemical drug society, the FANCRYL series that the BLEMMER series of You society, Hitachi change into society, the EBECRYL series of DAICEL-ALLNEX company, SR series/CD series of SARTOMER Japan company etc.
In addition, should also can contain acrylic functional group in addition by (B) composition.For example, can the monomer with hydroxyl of illustration as 4-hydroxybutyl acrylate, the monomer with carboxyl as 2-acryloxy ethyl butanedioic acid, the monomer with phosphate as two (2-acryloxy ethyl) phosphate, the monomer with amido as acryloyl morpholine, as acrylic acid 2-(2-ethyleneoxy ethyoxyl) monomer with vinyl ethyl ester, the monomer with epoxy radicals as glycidyl acrylate, the monomer with oxetanyl as the ARONE OXETANE series of the synthetic society in East Asia, the monomer with trialkoxysilyl as 3-acryloxy propyl trimethoxy silicane etc.These monomers can be used separately, also can mix a plurality of uses.While using separately, compare with the monomer that contains (simple function) of an acrylic in molecule, preferably use the monomer that has (multifunctional) of plural acrylic in molecule.While using monomer more than trifunctional (having three acrylics in molecule), if use separately the viscosity increased of transparent resin composition, the monomer that therefore mixes low viscous simple function or difunctionality (having two acrylics in molecule) is relatively good.
As (C) composition: optical free radical polymerization initiator, there is no particular limitation, can use general known optical free radical polymerization initiator.For example, the Irgacure series/Darocur series/Lucirin series that can enumerate BASF Japan company is, the KAYACURE series of serial, the Japanese chemical drug of the Esacure series of DKSH Japan company/Speedcure society etc.These optical free radical polymerization initiators can be used separately, also can mix a plurality of uses.
And then the absorption of the ink of land in receiving layer can also be added (D) composition: without colored particle in order to promote from ink-jet ejection.That is, can be in not damaging its transparent scope (total amount 100 weight portions with respect to transparent acrylic resin and polyfunctional acrylic monomer are 5～10 weight portions) mix the water white particulate of known 10～200nm.For example, silicon dioxide microparticle, acrylic acid particulate, polyvinylpyrrolidone particulate, aluminium oxide etc.
As (F): solvent, there is no particular limitation, can use general known solvent.For example, can enumerate the alcohols such as methyl alcohol, ethanol, normal propyl alcohol, isopropyl alcohol, ethylene glycol, propane diols; α-or the terpene hydro carbons such as β-terpineol etc.; The ketones such as acetone, methyl ethyl ketone, cyclohexanone, METHYLPYRROLIDONE; Toluene, dimethylbenzene, durol etc. are aromatic hydrocarbon based; The gylcol ethers such as cellosolve, methyl cellosolve, ethyl cellosolve, carbitol, methyl carbitol, ethyl carbitol, BC, propylene glycol monomethyl ether, dihydroxypropane single-ether, dipropylene glycol monomethyl ether, DPE, triethylene glycol monomethyl ether, triethylene glycol list ether; The acetate esters such as ethyl acetate, butyl acetate, cellosolve acetate, ethyl cellosolve acetate, butyl cellosolve acetate, carbitol acetic acid esters, ethyl carbitol acetic acid esters, acetate of butyl carbitol, propylene glycol methyl ether acetate, propylene glycol monoethyl ether acetate etc., can, by using them to dissolve, mix, make the composition of uniform solution shape.
(E) composition: the suitable addition of surfactant is that, with respect to transparent resin composition 100 weight portions, surfactant is 0.005～0.5 weight portion, more preferably 0.005～0.1 weight portion.If surfactant does not exist, while making transparent resin composition be dried, surface becomes orange peel, or it is inhomogeneous sometimes obviously to become, and optical characteristics declines, the distortion of the diffusion shape of droplet of ink thereafter, not preferred.In addition,, if surfactant is greater than 0.5 weight portion, its ink diffusion diameter becomes large and surpasses the scope of object pixel pattern during coloring printing ink land sometimes.As this surfactant, being preferably nonionic is surfactant, and further can preferably use silicon system and fluorine is surfactant.Particularly, can illustration BYK Chemie company BYK series processed, DIC FC series processed etc.
For the jetted ink that forms the pattern of pixels of regulation on transparent base, can be to comprise polyfunctional monomer etc. and there are the goods of photo-curable as ultraviolet curing composition, preferably can enumerate liquid polyfunctional acrylic monomer.More preferably ink-jet ejection is easy to the polyfunctional acrylic monomer of low-viscosity difunctionality or trifunctional.As functional group, can enumerate acryloxy, methacryloxy etc., the goods beyond them also can certainly.Concrete example as ultraviolet curing composition, can give an example 1,6-hexanediyl ester, 1,9-nonanediol diacrylate, 1,4-butanediol diacrylate, GDMA, neopentyl glycol dimethacrylate, trimethylolpropane triacrylate, 1,3-BDO dimethylacrylate etc.In addition,, on their basis, in order further to improve photo-curable, can also add more than four senses polyfunctional acrylic monomer, oligomer.For example, can enumerate and take trifunctional or acrylate, the methacrylate of four senses, the face energy that the dipentaerythritol of take is skeleton or the acrylate of six senses, the methacrylate etc. that pentaerythrite is skeleton.
In addition, jetted ink can coordinate colouring agent, can choice for use toner and inorganic colourant in any one.Wherein, as toner, such as using dyestuff, organic pigment, natural colouring matter etc.In addition, as inorganic colourant, such as using inorganic pigment, extender pigment etc.Among them, organic pigment color emissivity is high, and heat resistance is also high, therefore can preferably use.As organic pigment, for example, can enumerate at color index (C.I.; The distribution of The Society of Dyers and Colourists company) in, classify in the pigment with color index (C.I.) number of pigment (Pigment).In addition, as the concrete example of inorganic pigment, extender pigment, can enumerate titanium dioxide, barium sulfate, calcium carbonate, zinc white, lead sulfate, yellow lead, zinc yellow, iron oxide red (red iron oxide (III)), cadmium red, ultramarine, Prussian blue, chrome oxide green, cobalt green, amber, titanium is black, synthesize iron oxide black, carbon black etc.Should illustrate, the colouring agent that is matched with the first and second ink composite can be used alone, can also be two or more kinds in combination respectively.
Spray nozzle clogging while considering to utilize ink-jet method ejection ink composite etc., colouring agent preferably together with macromolecule dispersing agent micronize stably dispersing change into the particle below 100nm.That is,, for colouring agent is disperseed well, dispersant is matched with in ink composite as required.For example, as dispersant, can use the surfactants such as cation system, anion system, nonionic system, both sexes, silicon-type, fluorine system.Among surfactant, preferably following illustrative high molecular surfactant (macromolecule dispersing agent).That is, the polyoxyethylene alkyl ether class such as polyoxyethylene lauryl ether, polyoxyethylene octadecyl ether, polyoxyethylene oleyl ether; The polyoxyethylene alkyl phenyl ether classes such as NONIN HS 240, polyoxyethylene nonylplenyl ether; The polyethylene glycol di such as polyethylene glycol dilaurate, polyglycol distearate class; Sorbitan esters of fatty acids class; Fatty acid modified polyesters; The high molecular surfactants such as tertiary amine polyurethanes.
As the solvent for jetted ink, for example, can use the ethylene glycol monoalkyl ether acetate classes such as ethylene glycol monomethyl ether acetate; The diethylene glycol such as diethylene glycol monomethyl ether, diethylene glycol monoethyl ether monoalkyl ethers; The diethylene glycol monoalky lether acetate esters such as diethylene glycol mono-n-butyl ether acetic acid esters; The propylene-glycol monoalky lether such as propylene glycol methyl ether acetate, propylene glycol monoethyl ether acetate acetate esters; Other the high boiling solvent class such as ethers, gamma-butyrolacton such as diethylene glycol dimethyl ether.
In the jetted ink obtaining, mix respectively basis as described above, the reactive diluent that blending surface tension regulator, the lowering viscousity of take are object as required, is modulated to and is suitable as the characteristic value that ink for inking sprays characteristic continuously.Normally used ink gun is the goods that utilize piezoelectric element.Therefore, preferably at 20～45 ℃ of temperature, making viscosity is 5～30mPasec, and surface tension is 20～40N/m.
Then, while manufacturing colour filter by method of the present invention, as shown in Figure 1, first, use slit coater, rotary coating machine, mould to be coated with the known coating processes such as machine, intaglio plate coating machine, comma coating machine, on the transparent bases such as glass, PET, PEN, be coated with transparent resin composition.Now, it is 1 μ m～30 μ m that the thickness that can adjust moisture state makes dried thickness, be preferably 3 μ m～20 μ m, thereafter, for example, with the hot-air drying stove that is set as 40 ℃～110 ℃, it be dried and on transparent base, form receiving layer [(a) receiving layer painting process].If the thickness of receiving layer (dry after) is less than 1 μ m, can not form pattern of pixels,, as the ability of receiving layer, on the contrary, if be greater than 30 μ m, transparency does not decline and visibility variation, to optical, causes harmful effect.The dry processing is here in order to eliminate viscosity, and self keeps carrying out with the form of film.Its condition has no particular limits, for example, can use Minton dryer, take vacuum condition 1200Pa as 20 seconds, 400Pa as 30 seconds, the 130Pa mode stage such as be 10 seconds set vacuum condition and be temporarily dried, finally with heating plate etc., about 60～70 ℃ of temperature, 5～10 minutes time, carry out trunk dry.Thus, preferably before (d) photocuring operation under state, in 180 ° of peel strengths, the adhesive strength of receiving layer and transparent base is that 1N/m is above and lower than 100N/m.While being less than 1N/m, likely in when carrying etc., naturally come off, while being greater than 100N/m, when peeling off receiving layer, likely give substrate surface infringement, or produce and peel off remnants.In addition,, in the scope of the thickness of afore mentioned rules, the preferably total light transmittance of receiving layer is more than 95%.
Then, use ink discharge device, the receiving layer forming on transparent base in operation (a) is above used to jetted ink (for example RGB ink), printing object pixel pattern [(b) ink jet printing operation].For the pattern of pixels of describing on transparent base, just passable as long as the purposes of the colour filter that basis obtains etc. are suitably determined.Then, check whether bad [(c) the checking operation] of printing of utilizing jetted ink.This inspection operation is in the printing of pattern of pixels that utilizes jetted ink, take and check whether to comprise because ink-jet sprays bad grade, in required place, there is no the such defect of pattern of pixels (pixel omission), whether carries out as object with pattern of pixels colour mixture around, can use known appearance inspection device to check in pattern of pixels whether comprise defect, also can check by detecting by an unaided eye having or not of defect pattern.While using appearance inspection device, can be preferably by processes pixel, according to the deep or light difference from standard items (certified products) different, judge good no.
While not seeing defect, in order to make solvent evaporates contained in ink-jetting pattern, for example, use heating plate after 60～70 ℃ of temperature, 5～10 minutes time make jetted ink dry, in (d) photocuring operation, make receiving layer solidify, on transparent base, form pattern of pixels.On the contrary, while seeing defect, carry out (e) peel off the receiving layer that is printed with jetted ink stripping process, (f) from transparent base and be again coated with transparent resin composition, make its dry and receiving layer of forming receiving layer again painting process and (g) on receiving layer again the ink-jet of printing ink-jet ink republish operation, through (c), again check operation, in (d) photocuring operation, form pattern of pixels.
From not wanting liquid waste processing and the impact of transparent base being suppressed to Min., to above-mentioned (e) stripping process, can use dry type renovation technique, preferably adhesive tape, round end scraper etc. for receiving layer before photocuring all be peeled off from transparent base together with pattern of pixels.Stripping means now can peel with hand, also can use the machines such as adhering roll.
Then, at (f) receiving layer again in painting process, same with foregoing operation (a), use known coating process, transparent resin composition is coated on transparent base, for example, can be used Minton dryer, take vacuum condition 1200Pa as 20 seconds, 400Pa as 30 seconds, the 130Pa mode stage such as be 10 seconds set vacuum condition and be temporarily dried, finally with heating plate etc., about 60～70 ℃ of temperature, 5～10 minutes time, make it carry out trunk dry.
Then, in (g) ink-jet, republish in operation, same with foregoing operation (b), the receiving layer forming again in operation (f) is used to jetted ink, again print the pattern of pixels as target.Thereafter, in order to make solvent evaporates contained in ink-jetting pattern, for example with heating plate at 60～70 ℃ of temperature, with 5～10 minutes time, be dried after, in (d) photocuring operation, form pattern of pixels.
Then, at (c), check on the bad basis of printing that operation confirms not have jetted ink to cause that irradiation ultraviolet radiation in (d) photocuring operation and receiving layer is solidified forms pattern of pixels on transparent base.Now, use known ultraviolet exposure machine, for example, at 1500mJ/cm 2under the condition of (I line benchmark), expose, receiving layer and pattern of pixels are solidified simultaneously, in order to guarantee the light resistance reliability of end article, preferably, in 180 ° of peel strengths, make the adhesive strength of transparent base and receiving layer also for more than 1kN/m.
The application of the invention, can utilize dry type renovation technique fully all to peel off and remove receiving layer, also can be applicable to affected transparent base in wet type renovation technique, does not waste transparent base and just successfully realizes recycling texts.
Accompanying drawing explanation
Fig. 1 is the process chart of the manufacture method of colour filter in explanation the present invention.
In Fig. 2, (a) means the top view of the example of using jetted ink tracing point pattern on receiving layer, and top represents there is no receiving layer, and bottom indicates the situation of receiving layer.(b) mean the top view of describing the example of pattern of pixels on receiving layer with jetted ink, dotted line left side indicates that receiving layer, right side represent not have the state of describing of receiving layer.
Fig. 3: the schematic diagram of 180 ° of peeling strength test methods.
Symbol description
1: transparent base, 2: receiving layer before photocuring, 3: receiving layer apparatus for coating, 4: ink gun, 5: normal pattern (pattern of pixels), 6: appearance inspection device, 7: defect pattern (pattern of pixels), 8: ultraviolet irradiation machine, 9: receiving layer after photocuring
The specific embodiment
Below, based on embodiment, the present invention is described in more details.Should illustrate, the invention is not restricted to following content.In addition the device using in following examples,, reagent, evaluation method etc. are as follows:
[slit coater]
In receiving layer painting process (receiving layer is painting process again), when transparent resin composition is coated on transparent base, use device (the device name: desk-top slit coater) of ITOCHU MACHINE-TECHNOS system, the gap of the first end of transparent base and slot coated lip is set as 150～200 μ m, wet coating thickness is set as 60 μ m, with coating speed 20mm/s coating transparent resin composition.
[ink discharge device]
The ink discharge device using in ink jet printing operation (ink-jet republishes operation) can install KONICAMINOLTA IJ ink gun processed (KM512S[4pL/drop], KM512M[14pL/drop], KM512L[42pL/drop])], there is the high accuracy XY objective table (resolution ratio 0.5 μ m) that utilizes linear encoder can control ejection position, can stipulate the ink-jet ejection spacing of appointment.
While using this ink discharge device printing ink-jet ink, first, pack jetted ink into ink gun liquid supply container, transparent base is disposed on XY objective table.Then, distance between transparent base and ink gun is fixed on to 0.5mm, with electronic operation machine, setting ink spray volume is that 14pl, ink spouting velocity are that a second speed 6～7m, objective table speed be a second fast 125mm, land spacing are value arbitrarily, carries out the ejection of ink.
Now, in order to be confirmed whether just to spray a certain amount of ink in ink-jet, through conventional precision steelyard, measure the weight of the drop in required ejection voltage.The precision steelyard using in order to measure the fine droplet weight of ink-jet ejection is the precision steelyard SE-2(repeatable accuracy ± 0.25 μ g of SARTORIUS system, deviation from linearity ± 0.9 μ g, maximum scale 2100mg).And then, in order to suppress the change of outdoor Air Flow and the demonstration weight due to variations in temperature, by weight metering portion with thermostatic control box fence up, often managing to make weight metering portion is steady temperature (in △ T=0.4 ℃).Ink gun is now used KONICAMINOLTA IJ system (KM512S, KM512M, KM512L), collects 30000 (3000 * 10 times ejections: 0.5～1.5mg) in plastics shuttle (the about 600mg of weight).For gravimetry accurately, in order to get rid of the Influence of Evaporation of the volatile ingredient in ink-jet ejection drop, extremely low silicone oil (the SHIN-ETSU HANTOTAI's organosilicon system: KF-968-100CF) of evaporation capacity that packs in advance about 500mg in plastics shuttle into, by catching therein ink-jet ejection drop completely, measure delicate.Here, measure ejection drop with respect to the weight of each ejection voltage, make calibration curve, obtain the ejection voltage into 42pL/drop, 14pL/drop or 4pL/drop.
The jetted ink that < is used forms >
The blue solvent that uses in an embodiment following composition is that light-curable ink is as jetted ink.
Pigment blue 15: 6 5.4 weight portions
Macromolecule dispersing agent 2.8 weight portions
Diethylene glycol monoethyl ether acetic acid esters (DAICEL chemical industry system) 60.4 weight portions
Pentaerythritol triacrylate (Japanese chemical drug system) 26.9 weight portions
2-methyl isophthalic acid-[4-(methyl mercapto) phenyl]-2-morpholino propane-1-ketone (BASF Japan system)
3.7 weight portion
3-acryloxy propyl trimethoxy silicane (SHIN-ETSU HANTOTAI's chemical industry system) 0.6 weight portion
Polyether-modified dimethyl silicone polymer is surfactant (trade name BYK-378, BYKChemie Japan) 0.1 weight portion
The transparent base > that < is used
Transparent base: Japan's weaving easy bonding PET film of society's system (model A4300, thickness 250 μ m)
The reagent > that < is used
The shorthand notation using is in an embodiment as follows:
Transparent acrylic resin
" BR-107 " acrylic resin (Li Yang company of Mitsubishi system, DIANAL BR-107)
Ultraviolet curing monomer
" DPHA ": dipentaerythritol propane six acrylate (Japanese chemical drug society system, KAYARAD DPHA)
" DPCA-120 ": caprolactone modification dipentaerythritol acrylate (Japanese chemical drug society system, KAYARAD DPCA-120)
" M-450 ": pentaerythritol triacrylate and tetramethylol methane tetraacrylate (the synthetic society in East Asia system, ARONIX M-450)
" SR-351S ": trimethylolpropane triacrylate (SARTOMER Japan company system, SR351S)
" SR-213 ": Isosorbide-5-Nitrae-butadiene glycol diacrylate (SARTOMER Japan company system, SR213)
Optical free radical polymerization initiator
" Irgcure907 ": 2-methyl isophthalic acid-[4-(methyl mercapto) phenyl]-2-morpholino propane-1-ketone (BASF AG's system, IRGACURE907)
Without colored particle
" MIBK-SD ": silicon dioxide granule dispersion liquid (daily output chemical industry society system, MIBK-SD) solid constituent 35～36wt%.
Surfactant
" BYK-330 ": polyether-modified dimethyl silicone polymer be surfactant (BYK Chemie Japan company system, BYK-330)
Solvent
" PGMEA ": propylene glycol methyl ether acetate
Viscosity, the surface tension of the transparent resin composition of preparation are as follows, and its evaluation is measured by following method respectively.
Proper viscosity scope during slot coated
Viscosity: 5～30mPas
Surface tension: 20～40mN/m
Viscosity: (Dong Ji industry society system, RE80L) measures in 23 ℃ to use E type viscosimeter.
Surface tension: (consonance interface science society system, CBVP-Z) measures to use automatic surface tensometer in being controlled in the space of 23 ℃ ± 2 ℃.
< adhesive strength evaluation method >
Evaluation method (1): by adhesive tape [the transparent beauty of Scotch, bonding force 1～1.3kN/m between receiving layer/stripping tape left and right (Sumitomo 3M system)] dry after, or be attached at behind the receiving layer surface after photocuring, during with hand stripping tape, evaluate whether the PET of receiving layer from glass substrate peels off, whether residues in adhesive tape side.
The situation of all peeling off: zero
The situation that a part is peeled off: △
The situation of not peeling off: *
Evaluation method (2): utilize and to peel off determinator [TENSILON test machine (STROGRAPH U1-C: the machine-processed Zuo Suo of Japan's essence society system)] implementation evaluation.Implement 180 ° while peeling off, as shown in Figure 3, assess sample is cut to 10mm wide.Now, the PET film side of sample is fixed on to corrosion resistant plate with two-sided tape, measures the peel strength when 180 ° of directions are peeled off with speed 50mm/min by the adhesive tape that is sealed at receiving layer.Condition determination is as follows.
Device: STROGRAPH U1-C(Japan Jing Ji society makes society of institute system)
Mensuration increases the weight of: 200N * 1/50=4N
Draw speed during mensuration: 50mm/min
Sample width: 1mm
Sample length: about 7mm
Embodiment 1
(receiving layer forms the preparation with transparent resin composition)
As shown in table 1, add (A) acrylic resin (Li Yang company of Mitsubishi system, BR-107) 80 weight portions, (B) acrylate of dipentaerythritol caprolactone (Japanese chemical drug society system, DPCA-120) 20 weight portions, with respect to their total (A)+(B) 100 weight portion, add (C) optical free radical initator 2-methyl isophthalic acid of 2 weight portions-[4-(methyl mercapto) phenyl]-2-morpholino propane-1-ketone (BASF AG's system, IRGACURE907), in addition, add propylene glycol methyl ether acetate as solvent, further adding the polyether-modified dimethyl silicone polymer of (E) surfactant that is 0.01% with respect to transparent resin composition is surfactant (BYK Chemie company system, BYK-330), the receiving layer formation transparent resin composition of preparation concentration 20%.
Then, at upper PET film (the easy bonding PET COSMO SHINE model A4300 of Toyo Boseki K.K's system that attaches of glass substrate (5 inches of AN100 of Asahi Glass Co., Ltd's alkali-free glass processed); Thickness 250 μ m), with slit coater, take dry film thickness as 10 μ m modes, by the gap of the first end of transparent base and slot coated lip be set as 150～200 μ m, wet coating thickness is set as 60 μ m, under coating speed 20mm/s, is coated with transparent resin composition., use ULVAC processed VCD drying device, in vacuum condition 1200Pa(20 second thereafter) → 400Pa(30 second) → 130Pa(10 second) lower temporary transient dry, set heating plate for 70 ℃ of also dry solidifications 5 minutes.With light interference type film thickness gauge, (Filmetrics Co., Ltd. system, F20) measures dry rear thickness, and its result is 10 μ m.
Prepare a plurality of same test films, on ink discharge device, using solvent is light-curable ink, on receiving layer coating PET film with KONICAMINOLTA ink gun KM512M(14pL processed) describe respectively the square mosaic that the point by four coloring printing inks forms, its result, has confirmed the ink-jet of no problem ground to describe.After ink-jet is described, use stereomicroscope (Nikon CNC image measuring system processed NEXIV, VMR-3020) to measure having or not of defect.A part for presumptive test sheet is defectiveness, the bonding force of receiving layer is used to the method evaluation of stating evaluation method (1), its result, and receiving layer is all easily peeled off from PET base material.
To remaining test film use high illumination exposure machine (great scientific research society system, MA-1200/P-1084-2), by illumination 50～60mW/cm 2lower irradiation reaches 1500mJ/cm 2till the integrating time and photocuring.Test film after photocuring is used to the method evaluation of stating evaluation method (1), its result, receiving layer is all less than peeling off from PET base material.Should illustrate, take out an above-mentioned test film, the result of the land shape of use stereomicroscope (Nikon CNC image measuring system processed NEXIV, VMR-3020) mensuration ink is as shown in Fig. 2 (b).The known receiving layer that is printed with jetted ink all keeps shape (some footpath changes little) from ink-jet ejection land after dry exposure curing, can form pattern.The ink not there are not the local land of receiving layer is as a reference the state that colour mixture occurs, cannot form pattern.
Embodiment 2～6, comparative example 1～5
With the cooperation shown in table 1 and table 2 and embodiment, similarly implement and prepare receiving layer formation transparent resin composition, by the peel strength before and after the method evaluation photocuring of evaluation method (1).But, the method for embodiment 4 and 6 use evaluation methods (2) is measured to peel strength.The results are shown in table 1 and table 2.
[table 1]
Embodiment 7～8
With the cooperation shown in table 2 and embodiment, similarly implement and prepare receiving layer formation transparent resin composition, after coating is dried on the glass substrate that is pasted with PET base material, changing light exposure as shown in table 2ly, by the method for evaluation method (1), evaluating.The results are shown in table 2.
[table 2]
Table 2
Figure BDA0000388890550000161
Utilizability in industry
According to the present invention, can, to utilizing the stable pattern plotter of ink jet printing to carry out the dried base material reparation of coating of requisite receiving layer, therefore can effectively recycle the base material of high additive value, the base material that need to recycle.

Claims (5)

1. a manufacture method for colour filter, its characteristic is, is on transparent base, to utilize ink-jet method printing ink-jet ink and the manufacture method of colour filter that forms the pattern of pixels of regulation, this manufacture method comprises following operation:
(a) on transparent base, be coated with the transparent resin composition with photo-curable, the inspection the operation whether printing that its receiving layer painting process, (b) ink jet printing operation, (c) of printing ink-jet ink on receiving layer dry and that form receiving layer checked caused by jetted ink is bad and (d) irradiation ultraviolet radiation and receiving layer is solidified, on transparent base, form the photocuring operation of pattern of pixels
While having confirmed that printing is bad in described (c) inspection operation, carry out (e) peel off the receiving layer that is printed with jetted ink stripping process, (f) from transparent base and be again coated with transparent resin composition, make its dry and receiving layer of forming receiving layer again painting process and (g) on receiving layer again the ink-jet of printing ink-jet ink republish operation, through (c), check operation, in (d) photocuring operation, form pattern of pixels.
2. the manufacture method of colour filter as claimed in claim 1, wherein, jetted ink has photo-curable.
3. the manufacture method of colour filter as claimed in claim 1 or 2, wherein, transparent resin composition comprises following (A)～(F) composition,
(A) composition: transparent acrylic resin,
(B) composition: in molecule, contain the ultraviolet curing monomer of 1～6 acrylic,
(C) composition: optical free radical polymerization initiator,
(E) composition: surfactant,
(F) composition: solvent.
4. the manufacture method of colour filter as claimed in claim 3, wherein, transparent resin composition further comprises (D) without colored particle composition.
5. the color filter manufacturing method as described in any one in claim 1～4, wherein, in 180 ° of peel strengths, the receiving layer before photocuring and the adhesive strength of base material are that 1N/m is above and lower than 100N/m.
CN201310449922.6A 2012-09-28 2013-09-27 Method for manufacturing color filter using receptive layer Pending CN103707669A (en)

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