CN103874943B - The manufacture method of polarization plates - Google Patents

The manufacture method of polarization plates Download PDF

Info

Publication number
CN103874943B
CN103874943B CN201280049409.1A CN201280049409A CN103874943B CN 103874943 B CN103874943 B CN 103874943B CN 201280049409 A CN201280049409 A CN 201280049409A CN 103874943 B CN103874943 B CN 103874943B
Authority
CN
China
Prior art keywords
active energy
energy beam
adhesive
polarization plates
beam irradiation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201280049409.1A
Other languages
Chinese (zh)
Other versions
CN103874943A (en
Inventor
古川淳
广岩梓
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Publication of CN103874943A publication Critical patent/CN103874943A/en
Application granted granted Critical
Publication of CN103874943B publication Critical patent/CN103874943B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/42—Polarizing, birefringent, filtering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2310/00—Treatment by energy or chemical effects
    • B32B2310/08—Treatment by energy or chemical effects by wave energy or particle radiation
    • B32B2310/0806—Treatment by energy or chemical effects by wave energy or particle radiation using electromagnetic radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2310/00—Treatment by energy or chemical effects
    • B32B2310/08—Treatment by energy or chemical effects by wave energy or particle radiation
    • B32B2310/0806—Treatment by energy or chemical effects by wave energy or particle radiation using electromagnetic radiation
    • B32B2310/0831—Treatment by energy or chemical effects by wave energy or particle radiation using electromagnetic radiation using UV radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
    • B32B37/20—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of continuous webs only
    • B32B37/203—One or more of the layers being plastic
    • B32B37/206—Laminating a continuous layer between two continuous plastic layers

Abstract

The manufacture method of the polarization plates of the present invention possesses following procedures successively: adhesive painting process, at the one side of hyaline membrane or the adhesive of the coat activated energy ray-curable of the single or double of polarizing coating；Bonding process, applies pressure to via adhesive at the duplexer of the single or double laminating transparent film of polarizing coating, so that hyaline membrane is fitted with polarizing coating；And the 1st active energy beam irradiation process, in the period transporting duplexer when making duplexer be sealed to the roller that conveyance direction rotates, duplexer is irradiated active energy beam, makes adhesive solidify；In the 1st active energy beam irradiation process, the accumulated light of ultraviolet (UVB) is 10mJ/cm2Above and 185mJ/cm2Below.

Description

The manufacture method of polarization plates
Technical field
The present invention relates to the manufacture method as the polarization plates constituting one of the useful optical components such as liquid crystal display.
Background technology
Polarizing coating is adsorbed in polyvinyl alcohol resin film and carries out the material quilt being orientated as making dichroism pigment It is widely used, it is known to using iodine as the iodine system polarizing coating of dichromatic pigment or using dichromatic direct dyes as dichromatic color The dyestuff system polarizing coating etc. of element.These polarizing coatings typically at its single or double via adhesive laminating tri acetyl cellulose membrane etc. Hyaline membrane and form polarization plates.
As the method for the single or double laminating transparent film at polarizing coating, have coat activated on the surface of hyaline membrane in advance After energy ray-curable resin, clamp polarizing coating and hyaline membrane with a pair niproll (doubling roller), thus fit, so After, irradiate active energy beam and make side's (patent documentation 1: Japanese Unexamined Patent Publication 2004-245925 publication, specially of its bonding solidification Profit document 2: Japanese Unexamined Patent Publication 2009-134190 publication, patent documentation 3: Japanese Unexamined Patent Publication 2011-95560 publication).
For the polarization plates like this manufactured, if active energy ray curable resin the most suitably solidifies, then deposit In the overall situation producing the curlings such as wave volume (ウ ェ Block カ Le) as played wave of polarization plates.When polarization plates produces ripple During wave volume, not only bad order, and when being fitted in liquid crystal cells, also easily at bonding plane residual bubble so that operation Property reduce, also can become the reason that the display quality of liquid crystal display declines simultaneously.
Patent documentation 3 is recorded when irradiating active energy beam and make active energy ray curable resin solidify, Make the closely sealed outer peripheral face at roller of duplexer while making it solidify, thus the generation of wave volume etc. can be suppressed.
Prior art literature
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2004-245925 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2009-134190 publication
Patent documentation 3: Japanese Unexamined Patent Publication 2011-95560 publication
Summary of the invention
Invent problem to be solved
At the polarization with the operation making active energy ray curable resin solidify by irradiating active energy beam In the manufacture method of plate, the surface of duplexer has produced the such fluctuating (hereinafter referred to as " wavy speckle ") of wave sometimes.Work as polarization When producing wavy speckle on plate, in the same manner as wave volume, the reason that the quality of liquid crystal display reduces can be become because of bad order. It is an object of the invention to suppress the generation of above-mentioned wavy speckle.
For the method solving problem
The present invention is the manufacture method of the polarization plates of the single or double laminating hyaline membrane at polarizing coating, described manufacture Method possesses successively: adhesive painting process, in one side or the single or double coating of above-mentioned polarizing coating of above-mentioned hyaline membrane The adhesive of active energy ray curable；Bonding process, to via above-mentioned adhesive at the single or double of above-mentioned polarizing coating The duplexer of the above-mentioned hyaline membrane of stacking applies pressure, so that above-mentioned hyaline membrane is fitted with above-mentioned polarizing coating；And the 1st live Performance roentgenization operation, transports above-mentioned stacking when making above-mentioned duplexer be sealed to the roller that conveyance direction rotates In the period of body, above-mentioned duplexer is irradiated active energy beam, makes above-mentioned adhesive solidify；Wherein, above-mentioned 1st active-energy In roentgenization operation, the accumulated light of ultraviolet (UVB) is 10mJ/cm2Above and 185mJ/cm2Below.
In the invention described above, when at least one party of above-mentioned hyaline membrane is acetate fiber prime system resin, effect is preferable.
For the invention described above, after the 1st active energy beam irradiation process, it is also equipped with above-mentioned duplexer is irradiated Active energy beam and make the 2nd active energy beam irradiation process that above-mentioned adhesive solidifies.
In an embodiment of the invention described above, in the 1st active energy beam irradiation process, above-mentioned active-energy is penetrated The irradiation of line utilizes multiple light source to carry out.
Invention effect
In accordance with the invention it is possible to make the polarization plates that wavy speckle is good with the outward appearance that wave volume is suppressed.Cause This, use by obtained by the manufacture method of the present invention during polarization plates, it is possible to provide prevents the workability fall to liquid crystal cells laminating Low and the liquid crystal display of high-quality.
Accompanying drawing explanation
Fig. 1 is the diagrammatic side view of the embodiment manufacturing device representing polarization plates involved in the present invention.
Fig. 2 is the diagrammatic side view of the embodiment manufacturing device representing polarization plates involved in the present invention.
Detailed description of the invention
The present invention is to form the manufacture method of polarization plates at the single or double laminating hyaline membrane of polarizing coating, described manufacture Method possesses successively: adhesive painting process, at the one side of hyaline membrane or the coat activated energy of the single or double of polarizing coating The adhesive of ray curing；Bonding process, to via adhesive at the single or double laminating transparent film of polarizing coating Duplexer applies pressure, so that hyaline membrane is fitted with polarizing coating；And the 1st active energy beam irradiation process, make stacking Body was sealed in the period transporting duplexer under the state of the roller of conveyance direction rotation, duplexer is irradiated active-energy and penetrates Line, makes above-mentioned adhesive solidify.In the 1st active energy beam irradiation process, the accumulated light of ultraviolet (UVB) is 10mJ/ cm2Above and 185mJ/cm2Below.
First, the every key element used in the manufacture method of the present invention is described in detail.
(polarizing coating)
Polarizing coating used in the manufacture method of the polarization plates of the present invention, specifically, is to make dichroism pigment inhale Invest the polyvinyl alcohol resin film of uniaxial tension and carry out the film being orientated.Polyvinyl alcohol resin film can be by making poly-second The resin saponification of vinyl acetate system obtains.As polyvinyl acetate system resin, except gathering of the homopolymer as vinyl acetate Outside vinyl acetate, also can enumerate vinyl acetate and energy and copolymer (the such as ethylene-acetate second of other monomers of its copolymerization Enoate copolymer) etc..As also can enumerating unsaturated carboxylic acids, olefines, second with other monomers of vinyl acetate copolymerization Thiazolinyl ethers, unsaturated sulfonic acid class, there is the acrylic amide etc. of ammonium.The saponification degree of polyvinyl alcohol resin is 85 moles of % Above, preferably 90 moles more than %, more preferably 98～100 moles %.The average degree of polymerization of polyvinyl alcohol resin is usually 1000 ～10000, preferably 1500～5000.These polyvinyl alcohol resins can be modified, such as, can use through modified the gathering of aldehydes Vinyl formal, polyvinyl acetal, polyvinyl butyral resin etc..
By the material of such polyvinyl alcohol resin masking, can use as the former material film of polarizing coating.Will be poly- The method of vinyl alcohol resin masking is not particularly limited, can be by known proper method masking.By polyethenol series tree The thickness of the former material film that fat is constituted is not particularly limited, about for example, 10～150 μm.Typically can supply with roll, thickness Be in the range of 20～100 μm, in the range of preferably 30～80 μm, it addition, the width of industrial practicality be 1500～ In the range of 6000mm.
For commercially available polyvinyl alcohol mesentery, (Vinylon VF-PS#7500, Kuraray system/OPL film, M-7500, Japan synthesis system) raw material thickness be 75 μm, (Vinylon VF-PS#6000, Kuraray system, Vinylon VF-PE#6000, Kuraray system) raw material thickness be 60 μm.
Polarizing coating typically manufactures through following operation: make the dyeing of polyvinyl alcohol resin film adsorb with dichromatic pigment The operation (dyeing treatment process) of dichromatic pigment, by water-soluble with boric acid for the polyvinyl alcohol resin film that is adsorbed with dichromatic pigment Operation (boric acid treatment process) that liquid processes and the operation (science and engineering at washing carrying out washing after this boric acid aqueous solution processes Sequence).
It addition, during the manufacture of polarizing coating, general polyvinyl alcohol resin film is by uniaxial tension, and this uniaxial tension can be in dyeing Carry out before treatment process, it is possible to carry out in dyeing treatment process, it is possible to carry out after dyeing treatment process.At dyeing When carrying out uniaxial tension after science and engineering sequence, this uniaxial tension can be carried out before boric acid treatment process, it is possible to science and engineering at boric acid Sequence is carried out.Certainly, it is possible in above-mentioned multiple stages, carry out uniaxial tension.
Uniaxial tension can between the roller that peripheral speed is different uniaxial tension, it is possible to use hot-rolling carries out uniaxial tension.It addition, can For carrying out the dry type stretching stretched in an atmosphere, it is possible to for carrying out the wet tensile stretched when solvent swell.Stretching Multiplying power is usually about 3～8 times.
Dyeing treatment process in, polyvinyl alcohol resin film utilize the dyeing of dichromatic pigment such as by making poly-second Enol resin film is immersed in the aqueous solution containing dichromatic pigment and carries out.As dichromatic pigment, can use such as iodine, Dichroic dye etc..Dichroic dye comprises: the dichromatic such as containing the bis-azo compounds such as C.I.DIRECT RED39 is straight Connect dyestuff；Dichromatic direct dyes containing compounds such as trisazo-, four azos.It should be noted that polyvinyl alcohol resin Film is preferably implemented in the impregnation process in water before dyeing processes in advance.
When using iodine as dichromatic pigment, typically use dipping polyvinyl alcohol in the aqueous solution containing iodine and potassium iodide Resin film and the method that dyes.The content of the iodine in this aqueous solution is 0.01～1 weight generally relative to every 100 weight parts waters Part, the content of potassium iodide is 0.5～20 weight portions generally relative to every 100 weight parts waters.When using iodine as dichromatic pigment, Temperature for the aqueous solution of dyeing is usually 20～40 DEG C, and the dip time (dyeing time) in this aqueous solution is usually 20 ～1800 seconds.
On the other hand, when using dichroic dye as dichromatic pigment, typically can use containing dichroic dye The method impregnating polyvinyl alcohol resin film in aqueous solution and dye.The content of the dichroic dye in this aqueous solution is the most relative It is 1 × 10 in every 100 weight parts waters-4～10 weight portions, preferably 1 × 10-3～1 weight portion, particularly preferably 1 × 10-3～1 ×10-2Weight portion.This aqueous solution also can be containing inorganic salts such as sodium sulfate as dyeing assistant.Use dichroic dye as two colors Property pigment time, the temperature of aqueous dye solutions for dyeing is usually 20～80 DEG C, it addition, the dip time in this aqueous solution (dyeing time) usually 10～1800 seconds.
Boric acid treatment process is by making polyvinyl alcohol resin film immersion through dichromatic pigment dyeing in containing boric acid Aqueous solution is carried out.The amount of the boric acid in borated aqueous solution is usually 2～15 weight relative to every 100 weight parts waters Part, preferably 5～12 weight portions.When using iodine as dichromatic pigment in above-mentioned dyeing treatment process, for this boric acid The borated aqueous solution for the treatment of process preferably comprises potassium iodide.Now, the amount of the potassium iodide in borated aqueous solution is relative In every 100 weight parts waters, usually 0.1～15 weight portion, preferably 5～12 weight portions.Dipping in borated aqueous solution Time is usually 60～1200 seconds, preferably 150～600 seconds, further preferred 200～400 seconds.The temperature of borated aqueous solution Usually more than 40 DEG C, preferably 50～85 DEG C, more preferably 55～75 DEG C.
Then, in washing treatment process, such as soaked by the polyvinyl alcohol resin film after making above-mentioned boric acid process Stain carries out washing process in water.The temperature of the water in washing process is usually 4～40 DEG C, and dip time is usually 1～120 Second.After washing processes, typically implement dried, available polarizing coating.Dried suitably uses such as air drier, remote Infrared heaters etc. are carried out.The temperature of dried is usually 30～100 DEG C, is preferably 50～80 DEG C.Dried time Between usually 60～600 seconds, be preferably 120～600 seconds.
So, for polyvinyl alcohol resin film implement uniaxial tension, utilize the dyeing of dichromatic pigment, boric acid process and Washing processes, available polarizing coating.The thickness of this polarizing coating is usually in the range of 5～50 μm.
(hyaline membrane)
In the present invention, hyaline membrane is fitted in the single or double of above-mentioned polarizing coating.As the material constituting hyaline membrane Material, such as, can enumerate cyclic olefine resin, acetate fiber prime system resin, polyethylene terephthalate or poly-naphthalenedicarboxylic acid second The polyester based resin of diol ester, polybutylene terephthalate (PBT) etc, polycarbonate-based resin, such as poly-methyl methacrylate The acrylic resin of ester (PMMA) etc, olefin-based resin etc. such as polypropylene are the most widely used Membrane material.When making hyaline membrane be fitted in polarizing coating two-sided, each hyaline membrane can be the film of identical type, it is also possible to be different The film of kind, but when at least one party is cellulose acetate resin film, effect is preferable.When using cellulose acetate resin film During as hyaline membrane, easily produce wavy speckle, therefore apply the manufacture method of the polarization plates of the present invention, the suppression that wavy speckle occurs Effect becomes notable.
Cyclic olefine resin for example, has the cyclic olefin comprising norborene, polycyclic system norbornene monomer etc The thermoplastic resin (also referred to as thermoplastic cyclic olefin system resin) of the monomeric unit of (cycloolefin).Cyclic olefine resin also may be used For the ring-opening polymerization polymer of above-mentioned cycloolefin or use the hydride of ring-opening copolymer of two or more cycloolefin, it is possible to for cycloolefin With chain olefin, the addition polymer of the aromatic compound etc. with vinyl.It addition, import the cyclic olefine tree of polar group Fat is the most effective.
When using the copolymer of cycloolefin and chain olefin and/or the aromatic compound with vinyl, as chain Alkene, can enumerate ethylene, propylene etc., it addition, as having the aromatic compound of vinyl, can enumerate styrene, Alpha-Methyl Styrene, core alkyl-substituted styrene etc..In such copolymer, the monomeric unit comprising cycloolefin can be 50 moles of % Below (preferably 15～50 moles %).Especially, cycloolefin and chain olefin and the aromatic compound with vinyl are used During terpolymer, comprise the monomeric unit of cycloolefin, can be fewer amount as described above.At such terpolymer In, the monomeric unit comprising chain olefin is usually 5～80 moles of %, comprises the monomer of the aromatic compound with vinyl Unit is usually 5～80 moles of %.
Cyclic olefine resin can suitably use suitable commercially available product, such as Topas(Ticona company system), Arton(JSR (strain) company system), the ZEON(strain of ZEONOR(Japan) system), the ZEON(strain of ZEONEX(Japan) system), Apel(Mitsui Chemicals (strain) System), OXIS( great Cang industrial group system) etc..When such cyclic olefine resin masking is formed film, can suitably use solvent The known method such as casting method, extrusion by melting.It addition, be used as such as Escena(hydrops chemical industry (strain) system), SCA40(hydrops chemical industry (strain) makes), ZeonorFilm(Optes(strain) system) etc. the cyclic olefine of masking in advance resinous The commercially available product of film.
Cyclic olefine resin molding is alternatively the material through being stretched uniaxially or biaxially.Can be by stretching to cycloolefin Resin film gives arbitrary phase difference value.Stretching is general utilizes heating furnace while unreeling from film roller and carrying out continuously on one side, to The direct of travel (length direction of film) of the roller direction (width of film) vertical with its direct of travel or its both sides draw Stretch.The temperature of heating furnace typically uses near the glass transition temperature of cyclic olefine resin to glass transition temperature+100 DEG C scope.The multiplying power of stretching is usually 1.1～6 times, preferably 1.1～3.5 times.
If cyclic olefine resin molding is in roller reeling condition, then film is bonded to each other and has the tendency that is easily generated adhesion, therefore typically After laminating protecting film, then form roller volume.It addition, because the general surface activity of cyclic olefine resin molding is poor, therefore bonding with polarizing coating Surface preferably carries out the tables such as Cement Composite Treated by Plasma, sided corona treatment, ultraviolet treatment with irradiation, flame (fire is scorching) process, saponification process Face modification.Wherein, it is preferably capable the Cement Composite Treated by Plasma being easier to implement, particularly preferably atmospheric pressure plasma Process, sided corona treatment.
Acetate fiber prime system resin refers to the partially or completely carboxylate of cellulose, such as, can enumerate the second comprising cellulose Acid esters, propionic ester, butyrate, their film of mixed ester etc..More specifically, tri acetyl cellulose membrane, diacetyl can be enumerated Cellulose membrane, cellulose acetate propionate film, cellulose acetate butyrate film etc..As such cellulose esters system resin Film, it may be preferred to use suitable commercially available product, such as: Fujitac TD80(Fuji Photo Film (Ltd.)), Fujitac TD80UF (Fuji Photo Film (Ltd.)), Fujitac TD80UZ(Fuji Photo Film (Ltd.)), KC8UX2M(Konica Minolta Opto (strain) make), KC8UY(Konica Minolta Opto(strain) system), Fujitac TD60UL(Fuji Photo Film (Ltd.)), KC2UAW(Konica Minolta Opto(strain) system), KC4UYW(Konica Minolta Opto(strain) system), KC6UAW (Konica Minolta Opto (strain) system) etc..
It addition, as hyaline membrane, it is possible to suitable use imparts the cellulose acetate resin film of phase difference characteristics.As The commercially available product of such cellulose acetate resin film imparting phase difference characteristics, can enumerate WV BZ438(Fujiphoto (strain) make), KC4FR-1(Konica Minolta Opto(strain) system), KC4CR-1(Konica Minolta Opto(strain) System), KC4AR-1(Konica Minolta Opto(strain) system) etc..Cellulose acetate is also referred to as acetylcellulose, or also It is referred to as cellulose ethanoate.
These cellulose acetate resin films are hygroscopic, and the moisture rate that there is polarization plates brings the end of polarization plates to relax The situation of impact.Moisture rate when polarization plates manufactures is closer to the keeping environment of polarization plates, the manufacturing line of such as dust free room Or equilibrium water conten rate in roller volume custodial warehouse is the most preferred, although also depend on the composition of stacked film, but for example, 2.0～ About 3.5%, more preferably 2.5～3.0%.The numerical value of the moisture rate of this polarization plates measures with dry weight method, is 105 DEG C/120 Weight change after minute.
The thickness of the hyaline membrane used in the manufacture method of the polarization plates of the present invention, although be preferably thin thickness, if but The thinnest, then intensity will reduce, and makes processability deteriorate.On the other hand, if the thickest, the transparency can be produced and reduce or stacking The problems such as rear required hardening time is elongated.So, the suitable thickness of hyaline membrane e.g. 5～200 μm, and preferably 10～ 150 μm, and more preferably 10～100 μm.
For improving adhesive and polarizing coating and/or the cementability of hyaline membrane, it is possible to polarizing coating and/or hyaline membrane are implemented electricity The surfaces such as dizzy process, flame treatment, Cement Composite Treated by Plasma, UV treatment, primary coat (primer) coating process, saponification process change Property process.
It addition, can individually for hyaline membrane implement non-glare treated, antireflection process, hard painting process, antistatic treatment, The surfaces such as antifouling process process, or of more than two kinds above-mentioned process also be can be combined and be carried out.It addition, hyaline membrane and/or transparent Film sealer also can contain the UV absorbent such as benzophenone based compound, benzotriazole based compound, or phosphoric acid benzene The plasticizers such as ester based compound, phthalate compound.
It addition, hyaline membrane can have the function as phase retardation film, the function as brightness enhancement film, the merit as reflectance coating Can, the optical function such as function as half transflection film, the function as diffusion barrier, the function as optical compensation films.Now, example As by light such as the surface stacking phase retardation film of hyaline membrane, brightness enhancement film, reflectance coating, half transflection film, diffusion barrier, optical compensation films Learn functional membrane, thus there is such function, in addition, it is possible to give such function to hyaline membrane itself.It addition, also Hyaline membrane can be made to have multiple function as having diffusion barrier of the function of brightness enhancement film etc..
Such as, can be by above-mentioned hyaline membrane be implemented Japanese Patent No. No. 2841377 publications, Japanese Patent No. The stretch processing that No. 3094113 publications etc. are described, or implement the process described in No. 3168850 publications of Japanese Patent No., from And give the function as phase retardation film.The phase difference characteristics of phase retardation film, can suitably select such as front phase difference value be 5～ 100nm, thickness direction phase difference value are the scope etc. of 40～300nm.It addition, for above-mentioned hyaline membrane, by using Japan Method described in JP 2002-169025 publication or Japanese Unexamined Patent Publication 2003-29030 publication forms minute aperture, or will Select the cholesterol liquid crystal layer stackup of the centre wavelength different more than 2 layers of reflection, thus the function as brightness enhancement film can be given.
If above-mentioned hyaline membrane is formed metal film by evaporation or sputtering etc., then can give as reflectance coating or semi-transparent The function of anti-film.Containing fine-grained resin solution, the function as diffusion barrier can be given by coating on above-mentioned hyaline membrane. It addition, be by being coated with the liquid crystal compounds such as plate-like liquid crystal compounds on above-mentioned hyaline membrane and making it be orientated, thus can Give the function as optical compensation films.Additionally, it is possible to make hyaline membrane contain the compound manifesting phase contrast.Further, it is possible to Use suitable adhesive, make various optical functional film be mounted directly on polarizing coating.As the commercially available product of optical functional film, Such as can enumerate: DBEF(3M company system, can be from Sumitomo 3M(strain in Japan) obtain) etc. brightness enhancement film；WV film (Fujiphoto (strain) System) etc. visual angle improvement film；ArtonFilm(JSR(strain) system), ZeonorFilm((strain) Optes system), Escena(hydrops chemistry Industry (strain) system), VA-TAC(Konica Minolta Opto(strain) system), Sumikalight(Sumitomo Chemical (strain) system) etc. phase Potential difference film etc..
(active energy ray curable adhesive)
Polarizing coating is fitted via the adhesive of active energy ray curable with hyaline membrane.Solid as active energy beam Change type adhesive, from viewpoints such as weatherability, refractive index, cationically polymerizables, can enumerate by irradiating active energy beam And carry out solidifying, the adhesive that comprises epoxy system resin compositions containing epoxy resin.But, it is not limited to this, energy (organic solvent system is gluing for the various active energy ray curable adhesive that enough employings used in the manufacture of polarization plates in the past Agent, hot melt system adhesive, solventless adhesive etc.), such as can comprise acrylamide, acrylate, carbamate propylene The adhesive etc. of the acrylic resin compositions such as acid esters, epoxy acrylate.
Epoxy resin refers to the compound in intramolecular with more than 2 epoxy radicals.From weatherability, refractive index, cation The viewpoints such as polymerism are set out, and are preferably as epoxy resin contained in the curable epoxy resin composition of adhesive, Intramolecular does not contains the epoxy resin (see, for example patent documentation 1) of aromatic rings.Hydrogenation can be illustrated as such epoxy resin Epoxy resin, alicyclic epoxy resin, aliphatic epoxy resin etc..
Hydrogenated epoxy resin can be by making the polyol of the raw material as aromatic epoxy resin at catalyst In the presence of, under pressurized conditions, selectivity obtains core hydrogenated polyol through core hydrogenation, then this core is hydrogenated polyhydroxy Compound carries out the method for glycidyl ether and obtains.As aromatic epoxy resin, such as, can enumerate: two contractings of bisphenol-A The bisphenol-type epoxy resins such as the diglycidyl ether of water glycerin ether, the diglycidyl ether of Bisphenol F and bisphenol S；Phenol novolac ring The epoxy resin of the phenol aldehyde types such as epoxy resins, cresol novolak epoxy and hydroxy benzaldehyde phenol novolac epoxy resins；Tetrahydroxy The multifunctional types such as the glycidyl ether of phenylmethane, the glycidyl ether of tetrahydroxybenzophenone and epoxidation polyvinyl phenol Epoxy resin etc..In hydrogenated epoxy resin, it is preferably the glycidyl ether of the bisphenol-A of hydrogenation.
Alicyclic epoxy resin refers to that intramolecular has the asphalt mixtures modified by epoxy resin of the epoxy radicals with the conjunction of ester ring type ring key of more than 1 Fat." epoxy radicals closed with ester ring type ring key " refers to the oxygen atom-O-of the bridging structure in the structure shown in following formula.Following formula In, m is the integer of 2～5.
［ changing 1 ］
By (the CH in above-mentioned formula2)mIn one or more hydrogen atoms remove and the group that obtains and other chemical constitution keys Compound obtained by conjunction, can become alicyclic epoxy resin.(CH2)mIn one or more hydrogen atoms, it is also possible to methyl, The straight-chain alkyl such as ethyl suitably replace.In alicyclic epoxy resin, there is oxabicyclohexane ring (in above-mentioned formula The compound of m=3), the epoxy resin of oxabicyclo heptane ring (compound of m=4 in above-mentioned formula), demonstrate excellence bonding Property, it is advantageous to use.Hereinafter, specifically exemplified with the alicyclic epoxy resin being preferably used, but it is not limited to these chemical combination Thing.
Epoxycyclohexyl-methyl epoxycyclohexane carboxylate class shown in (a) following formula (I):
［ changing 2 ］
(in formula, R1And R2Represent hydrogen atom or the straight-chain alkyl of carbon number 1～5 independently of each other.)
The epoxycyclohexane carboxylate class of the alkane diol shown in (b) following formula (II):
［ changing 3 ］
(in formula, R3And R4Representing hydrogen atom or the straight-chain alkyl of carbon number 1～5 independently of each other, n represents 2～20 Integer.)
The epoxycyclohexyl-methyl esters of the dicarboxylic acids shown in (c) following formula (III):
［ changing 4 ］
(in formula, R5And R6Representing hydrogen atom or the straight-chain alkyl of carbon number 1～5 independently of each other, p represents 2～20 Integer.)
The epoxycyclohexyl-methyl ethers of the Polyethylene Glycol shown in (d) following formula (IV):
［ changing 5 ］
(in formula, R7And R8Representing hydrogen atom or the straight-chain alkyl of carbon number 1～5 independently of each other, q represents 2～10 Integer.)
The epoxycyclohexyl-methyl ethers of the alkane diol shown in (e) following formula V:
［ changing 6 ］
(in formula, R9And R10Representing hydrogen atom or the straight-chain alkyl of carbon number 1～5 independently of each other, r represents 2～20 Integer.)
Bicyclic oxygen three spiro-compound shown in (f) following formula (VI):
［ changing 7 ］
(in formula, R11And R12Represent hydrogen atom or the straight-chain alkyl of carbon number 1～5 independently of each other.)
Bicyclic oxygen single-spiro compound shown in (g) following formula (VII):
［ changing 8 ］
(in formula, R13And R14Represent hydrogen atom or the straight-chain alkyl of carbon number 1～5 independently of each other.)
VCH diepoxide species shown in (h) following formula (VIII):
［ changing 9 ］
(in formula, R15Represent hydrogen atom or the straight-chain alkyl of carbon number 1～5.)
Epoxycyclopentyl ethers shown in the most following formula (IX):
［ changing 10 ］
(in formula, R16And R17Represent hydrogen atom or the straight-chain alkyl of carbon number 1～5 independently of each other.)
Bicyclic oxygen tristane (ジ エ Port キ シ ト リ シ Network ロ デ カ Application) class shown in (j) following formula (X):
［ changing 11 ］
(in formula, R18Represent hydrogen atom or the straight-chain alkyl of carbon number 1～5.)
In foregoing illustrative alicyclic epoxy resin, it is easier, from commercially available or its analog, reasons such as obtaining Set out, more preferably use following alicyclic epoxy resin.
(A) 7-oxabicyclo ［ 4.1.0 ］ heptane-3-carboxylic acid and the ester of (7-oxa--bicyclo-［ 4.1.0 ］ hept-3-yl) methanol Compound in formula (I), R1=R2The compound of=H ］
(B) 4-methyl-7-oxabicyclo ［ 4.1.0 ］ heptane-3-carboxylic acid and (4-methyl-7-oxa--bicyclo-［ 4.1.0 ］ hept- 3-yl) methanol carboxylate in formula (I), R1=4-CH3、R2=4-CH3Compound
(C) 7-oxabicyclo ［ 4.1.0 ］ heptane-3-carboxylic acid and 1，2-ethandiol carboxylate in formula (II), R3=R4= The compound of H, n=2 ］
(D) (7-oxabicyclo ［ 4.1.0 ］ hept-3-yl) methanol and adipic acid carboxylate in formula (III), R5=R6=H、 The compound of p=4 ］
(E) (4-methyl-7-oxabicyclo ［ 4.1.0 ］ hept-3-yl) methanol and adipic acid carboxylate in formula (III), R5=4-CH3、R6=4-CH3, the compound of p=4
(F) (7-oxabicyclo ［ 4.1.0 ］ hept-3-yl) methanol and 1，2-ethandiol etherate in formula V, R9=R10 =H, the compound of r=2 ］
It addition, as aliphatic epoxy resin, the bunching water that can enumerate aliphatic polyol or its alkylene oxide adduct is sweet Oil ether.More specifically, can enumerate: the diglycidyl ether of BDO；The diglycidyl ether of 1,6-hexanediol；Sweet The triglycidyl ether of oil；The triglycidyl ether of trimethylolpropane；The diglycidyl ether of Polyethylene Glycol；The two of propylene glycol Glycidyl ether；Alkylene oxide (the epoxy that addition is one kind or two or more on the aliphatic polyols such as ethylene glycol, propylene glycol, glycerol Ethane, expoxy propane) and the polyglycidyl ether etc. of polyether polyol that obtains.
Constitute the epoxy resin of adhesive comprising epoxy system resin compositions can be used alone a kind or and with 2 kinds with On.The epoxide equivalent of the epoxy resin used in said composition is typically 30～3000g/ equivalents, preferably 50～1500g/ and works as The scope of amount.When epoxide equivalent is less than 30g/ equivalent, deposits the flexible of composite polarizing plate after hardening and reduce, or adhesive strength The probability reduced.On the other hand, when more than 3000g/ equivalent, there is the compatibility of other compositions contained with adhesive The probability reduced.
In this adhesive, from the viewpoint of reactivity, as the curing reaction of epoxy resin, cation is preferably used Polymerization.To this end, preferably in the curable epoxy resin composition as active energy ray curable adhesive coordinate sun from Sub-polymerization initiator.Cationic polymerization initiators is penetrated by luminous ray, ultraviolet, X-ray, electron ray isoreactivity energy The irradiation of line produces cation kind or lewis acid, causes the polyreaction of epoxy radicals.Hereinafter, by by active energy beam Irradiate the cationic polymerization initiators producing cation kind or lewis acid and make the polyreaction of epoxy radicals start and be referred to as " light sun Cation polymerization initiator ".
Just make to carry out the side of the solidification of adhesive with light cationic polymerization initiators and by irradiating active energy beam For method, can solidify at normal temperatures, so consider polarizing coating thermostability or expand caused by strain necessity reduce, from Can make intermembranous the most bonding from the viewpoint of highly advantageous.It addition, light cationic polymerization initiators produces catalytic action by light, Even if so being mixed in epoxy resin, it may have the storage stability of excellence, workability.
As light cationic polymerization initiators, such as, can enumerate: aromatic diazonium salt；Aromatic iodonium salts, aromatic series The salt such as sulfonium salt；Iron-arene complex etc..
As aromatic diazonium salt, such as, can enumerate diazobenzene hexafluoro antimonate, diazobenzene hexafluorophosphate and diazobenzene Hexafluoro borate etc..It addition, as aromatic iodonium salts, such as can enumerate diphenyl iodine four (pentafluorophenyl group) borate, two Phenyl-iodide hexafluorophosphate, diphenyl iodine hexafluoro antimonate and two (4-nonyl phenyl) iodine hexafluorophosphate etc..
As aromatic series sulfonium salt, such as, can enumerate: triphenylsulfonium hexafluorophosphate, triphenylsulfonium hexafluoro antimonate, triphen Base sulfonium four (pentafluorophenyl group) borate, 4,4 '-bis-(diphenyl sulfonium) diphenylsulfide double (hexafluorophosphate), 4,4 '-bis-［ two (beta-hydroxy ethyoxyl) phenyl sulfonium ］ diphenylsulfide double (hexafluoro antimonate), 4,4 '-bis-［ two (beta-hydroxy ethyoxyl) phenyl sulfoniums ］ Double (hexafluorophosphate), 7-［ two (p-methylphenyl) the sulfonium ］-ITX hexafluoro antimonate of diphenylsulfide, ［ two is (right for 7- Tolyl) sulfonium-ITX four (pentafluorophenyl group) borate, 4-phenylcarbonyl group-4 '-diphenyl sulfonium-diphenylsulfide Hexafluorophosphate, 4-(are to tert-butyl-phenyl carbonyl)-4 '-diphenyl sulfonium-diphenylsulfide hexafluoro antimonate and 4-(be to tertiary fourth Base phenylcarbonyl group)-4 '-two (p-methylphenyl) sulfonium-diphenylsulfide four (pentafluorophenyl group) borate etc..
It addition, as iron-arene complex, such as, can enumerate dimethylbenzene-cyclopentadienyl group ferrum (II) hexafluoro antimonate, withered Alkene-cyclopentadienyl group ferrum (II) hexafluorophosphate and dimethylbenzene-cyclopentadienyl group ferrum (II)-three (trifluoromethyl sulfonyl) first Alkide etc..
These light cationic polymerization initiators can be readily available commercially available product, such as, if naming by trade name respectively, Then can enumerate " Kayarad PCI-220 ", " Kayarad PCI-620 " (above by Japan's chemical medicine (strain) system), " UVI- 6990 " (associating carbide (Union Carbide) company's system), " Adeka Optomer SP-150 ", " Adeka Optomer SP-170 " (above by (strain) ADEKA system), " CI-5102 ", " CIT-1370 ", " CIT-1682 ", " CIP-1866S ", " CIP- 2048S " and " CIP-2064S " (above by Japan Cao Da (strain) system), " DPI-101 ", " DPI-102 ", " DPI-103 ", " DPI- 105”、“MPI-103”、“MPI-105”、“BBI-101”、“BBI-102”、“BBI-103”、“BBI-105”、“TPS-101”、 " TPS-102 ", " TPS-103 ", " TPS-105 ", " MDS-103 ", " MDS-105 ", " DTS-102 ", " DTS-103 " (above by Greening learn (strain) system), " PI-2074 " (Luo Diya (Rhodia) company system), etc..
These light cationic polymerization initiators can be used alone a kind, it is also possible to is mixed with two or more.Wherein, fragrance Even if race's sulfonium salt also has Ultraviolet Light in the wavelength region of more than 300nm, therefore curable is excellent, it is provided that tool There is the solidfied material of good mechanical strength and adhesive strength, be therefore preferably used.
About the use level of light cationic polymerization initiators, relative to epoxy resin 100 weight portion, it is common that 0.5～20 Weight portion, more than preferably 1 weight portion, below further preferably 15 weight portions.Light cationic polymerization initiators use level relative to When epoxy resin 100 weight portion is less than 0.5 weight portion, solidify insufficient, there is mechanical strength, the trend of adhesive strength reduction. It addition, the use level of light cationic polymerization initiators relative to epoxy resin 100 weight portion more than 20 weight portion time, solidfied material In ionic substance increase, therefore solidfied material hygroscopicity improve, exist endurance quality reduce probability.
In the case made from light cationic polymerization initiators, curable epoxy resin composition can also contain as required There is photosensitizer.By using photosensitizer, the reactive raising of cationic polymerization, the mechanical strength of solidfied material can be made, glue Connect intensity to improve.As photosensitizer, such as, can enumerate carbonyl compound, organosulfur compound, persulfide, redox system Compound, azo and diazonium compound, halogenide, photo-reduction pigment etc..
If enumerating the more specifically example of photosensitizer, such as, can enumerate: benzoin methylether, benzoin iso-propylether and α, the benzoin derivatives such as alpha, alpha-dimethyl epoxide-α-phenyl acetophenone；Benzophenone, 2,4-dichloro benzophenone, o-benzoyl base Essence of Niobe, 4,4 '-bis-(dimethylamino) benzophenone and 4, the hexichol first such as 4 '-bis-(diethylamino) benzophenone Ketone derivatives；The thioxanthone derivates such as CTX and ITX；The anthraquinone such as 2-chloroanthraquinone and 2-methylanthraquinone Derivant；The acridone derivativeses such as N-methylacridine ketone and N-butyl acridone；And α, α-diethoxy acetophenone, benzene are even Acyl, Fluorenone, ton ketone, uranyl compound and halogenide etc..Photosensitizer can only be used alone a kind, it is also possible to and with 2 kinds Above.The photosensitizer preferably content in curable epoxy resin composition 100 weight portion is the model of 0.1～20 weight portions Enclose.
Epoxy resin contained by adhesive is solidified by light cationic polymerization, but also can by light cationic polymerization and Hot both cationic polymerizations solidify.In the latter case, preferably and with light cationic polymerization initiators and heat sun from Sub-polymerization initiator.
As hot cationic polymerization initiators, can enumerate benzil sulfonium salt, thiophene (チ オ Off ェ ニ ウ system) salt, four Hydrogen thiophene salt (チ オ ラ ニ ウ system), benzil ammonium, pyridiniujm, hydrazine (ヒ De ラ ジ ニ ウ system) salt, carboxylate, sulphur Acid esters and amine acid imide etc..These hot cationic polymerization initiators can be readily available as commercially available product, such as, if respectively Name by trade name, then can enumerate " Adekaopton CP77 ", " Adekaopton CP66 " (above for Co., Ltd. ADEKA system), " CI-2639 ", " CI-2624 " (is Tso Tat Co., Ltd., Japan system above), " Sun-aid SI-60L ", " Sun- Aid SI-80L ", " Sun-aid SI-100L " (being three new chemical industry Co., Ltd. systems above) etc..
The adhesive of active energy ray curable can contain oxetanes (オ キ セ タ Application) class, polyhydric alcohol further Classes etc. promote the compound of cationic polymerization.
Oxetanes class is to have the compound of quaternary cyclic ethers in intramolecular, such as, can enumerate 3-ethyl-3-hydroxyl Methy oxetane, Isosorbide-5-Nitrae-bis-［ (3-ethyl-3-oxetanyl) methoxy ］ benzene, 3-ethyl-3-(phenoxy group first Base) oxetanes, two ［ (3-ethyl-3-oxetanyl) methyl ］ ether, 3-ethyl-3-(2-Ethylhexoxymethyl) oxygen Azetidine and phenol novolac oxetanes etc..These oxetanes classes can easily obtain commercially available product, such as, all Name with trade name, " ARON OXETANE OXT-101 ", " ARON OXETANE OXT-121 ", " ARON can be enumerated OXETANE OXT-211 ", " ARON OXETANE OXT-221 ", " ARON OXETANE OXT-212 " (be East Asia synthesis (strain) makes) etc..These oxetanes class content ratios in curable epoxy resin composition be usually 5～95 weight %, It is preferably 30～70 weight %.
As polyalcohols, preferably there is no the polyhydric alcohol of acidic-group beyond phenolic hydroxyl group, such as, can enumerate not There is the polyol compound of the functional group beyond hydroxyl, polyester polyol compound, polycaprolactone polyol compound, have The polyol compound of phenolic hydroxyl group and polycarbonate polyol etc..The molecular weight of these polyalcohols is usually more than 48, excellent Elect more than 62 as, more preferably more than 100, but also preferably less than 1000.These polyalcohols are at curable epoxy Content ratio in resin combination generally below 50 weight %, below preferably 30 weight %.
The adhesive of active energy ray curable can coordinate further ion trap agent, antioxidant, chain-transferring agent, The additives such as viscosifier, thermoplastic resin, filler, flow modifier, levelling agent, plasticizer, defoamer.As ion trap Agent, can enumerate the bismuth system of powder, antimony system, magnesium system, aluminum system, calcium system, titanium system and the inorganic compound of their mixed stocker etc., makees For antioxidant, hindered phenol system antioxidant etc. can be enumerated.
The adhesive of active energy ray curable can be to contain substantially no the solventless adhesive of solvent composition Form use, but each coating method is respectively provided with optimum range of viscosities, therefore in order to viscosity adjusts, it is possible to containing solvent. As solvent, the optical property that do not reduce polarizing coating and the material that well composition epoxy resin etc. dissolved are preferably used, The organic solvents such as the hydro carbons with toluene as representative, esters with ethyl acetate as representative can be enumerated.Activity used in the present invention The viscosity of the adhesive of energy ray-curable for example, 5～the scope of 1000mPa about s, preferably 10～200mPa S, more preferably 20～100mPa s.
<manufacture method of polarization plates>
It follows that while referring to the drawings while manufacture device and the manufacture method of the polarization plates of the present invention is described.Fig. 1 is table Show the schematic diagram of the embodiment manufacturing device that the manufacture method of the polarization plates of the present invention used.
The manufacture device of the polarization plates shown in Fig. 1 is disposed with along conveyance direction: for the one side at hyaline membrane 2,3 The adhesive apparatus for coating 11,12 of coating binder；Obtain the laminating of duplexer 4 for fitting hyaline membrane 2,3 and polarizing coating 1 Roller (niproll) 51,52；Make the roller 13 that duplexer 4 is closely sealed；Be arranged on relative with the outer peripheral face of this roller 13 to position the 1st live Performance beam exposure apparatus 31,32；It is arranged at than it more by the 2nd active energy beam irradiation unit in conveyance direction downstream 16～18；And conveyance niproll 19.
First, at the one side of the hyaline membrane 2,3 released continuously from the state being wound into roll, adhesive is utilized to be coated with The adhesive (adhesive painting process) of the coat activated energy ray-curable of device 11,12.
Then, two-sided at the polarizing coating 1 released continuously from the state being wound into roll, carrys out stacking via adhesive and is coated with It is furnished with the hyaline membrane 2,3 of adhesive and obtains duplexer, this duplexer is being seized on both sides by the arms in a pair laminating rotated to conveyance direction Under state between roller 51,52, to make the doubling roller of at least one party apply pressure in the way of the pressing of the direction of another doubling roller Power, thus fits polarizing coating 1 with hyaline membrane 2,3, cambium layer stack 4(bonding process).
Then, during limit makes this duplexer 4 be sealed at the outer peripheral face limit conveyance duplexer 4 of roller 13, from the 1st activity Energy-ray irradiation unit 31,32 irradiates active energy beam towards the outer peripheral face of roller 13, and (the 1st lives to make adhesive polymerizing curable Performance roentgenization operation).
It should be noted that the 2nd active energy beam irradiation unit 16～18 being configured in conveyance direction downstream is For making the device of the complete polymerizing curable of adhesive (the 2nd active energy beam irradiation process), can add as desired or save Slightly, because adhesive fully polymerizing curable can be made, therefore at the 1st active-energy by the 2nd active energy beam irradiation process In roentgenization operation, it is not necessary to make adhesive polymerizing curable completely, and then be easily controlled the accumulated light of active energy beam So that wave volume is inhibited, the most preferably there is the 2nd active energy beam irradiation process.Duplexer 4 is finally made to lead to Cross conveyance niproll 19, batch as polarization plates in takers-in 20.Hereinafter, each operation is described in detail.
(adhesive painting process)
Adhesive coating process on hyaline membrane 2,3 is not particularly limited, such as may utilize scraper, bar, die coating machine, The various coating method such as comma coater, gravure coater.Wherein, if considering and film coated, transport circuit (パ ス ラ イ Application) degree of freedom, the correspondence such as fabric width, then adhesive apparatus for coating 11,12 is preferably gravure roll (グ ラ PVC ア ロ Le).
When using gravure roll to carry out the coating of adhesive as adhesive apparatus for coating 11,12, the adhesive being coated with Thickness (coating thickness) be preferably from about 0.1～10 μm, more preferably 0.2～4 μm.The coating thickness of adhesive is according to gravure roll Speed adjust relative to the ratio i.e. draw ratio of the linear velocity of hyaline membrane.It is said that in general, by making the draw ratio (speed of gravure roll Degree/linear velocity) adjust to 0.5～10, the coating thickness of adhesive can be made to adjust to about 0.1～10 μm.More specifically, make The linear velocity of bright film 2,3 is 10～100m/ minute, and gravure roll rotates towards the rightabout of the conveyance direction of hyaline membrane 2,3, makes The speed of gravure roll is 5～1000m/ minute, and the coating thickness of adhesive thus can be made to adjust to about 0.1～10 μm.
Adhesive after the production, typically be adjusted to set point of temperature ± 5 DEG C in the range of 15～40 DEG C (such as, it is stipulated that When temperature is 30 DEG C, 30 DEG C ± 5 DEG C), preferably ± 3 DEG C, be coated with in the environment of more preferably ± 1 DEG C.
(bonding process)
In this operation, two-sided at the polarizing coating 1 released continuously from the state being wound into roll, comes via adhesive Stacking is coated with the hyaline membrane 2,3 of adhesive by above-mentioned operation.This duplexer seized on both sides by the arms in rotating to conveyance direction Under state between a pair doubling roller 51,52, such as by making doubling roller 51 press to the direction of doubling roller 52, thus will polarization Film 1 is fitted with hyaline membrane 2,3, cambium layer stack 4.Now, to become ± 3 ° relative to the face vertical with the pressing direction of doubling roller In the range of angle mode, preferably become angle in the range of ± 1 ° mode, particularly preferably be perpendicular to press direction The overlapping mode in face, make polarizing coating transport between doubling roller.So, polarizing coating and hyaline membrane will not at doubling roller nearby Contact and produce bubble.
It should be noted that in fig. 1 it is shown that at the one side coating binder equably of hyaline membrane 2,3, make hyaline membrane 2, the face being coated with adhesive of 3 is overlapping with polarizing coating 1 and the method that utilizes doubling roller 51,52 to fit, but also can be at polarization The two-sided coating binder equably of film 1, at the face overlapping transparent film 2,3 being coated with adhesive of polarizing coating 1 and utilize laminating 51,52 fit.
As the material of doubling roller 51,52, metallic roll, rubber rollers can be enumerated.Preferably make a side of a pair doubling roller 51,52 For metallic roll, the opposing party is rubber rollers.Mother metal as metallic roll, it is possible to use various known materials, but be preferably SUS304, more preferably implements chromium plating and processes on its surface.It addition, the material of rubber doubling roller there is no particular limitation, can enumerate EPDM, NBR, carbamate, Titan (タ ィ タ Application), silicone etc..There is no particular limitation for the hardness of rubber rollers, it is common that 60 ～100 °, preferably 85～95 °.It should be noted that the hardness of rubber rollers can utilize durometer based on JISK6253 to enter Row measures.As commercially available durometer, use the durometer " Type-A " etc. of such as Aska company.Specifically, make During by rod or the like object compressive surface, measure the skin resistance of rubber rollers with durometer.
For the metallic roll squeeze pressure with rubber rollers, preferably Fujiphoto Double-piece type Prescale (ultralow pressure With) instantaneous pressure be 0.5～3.0MPa, more preferably 0.7～2.3MPa.There is no particular limitation for the diameter of doubling roller 51,52, It is typically 50～400mm.It addition, the diameter of two (a pair) doubling rollers 51,52 can be identical, it is possible to different.
(the 1st active energy beam irradiation process)
Roller 13 constitutes the outer peripheral face convex surface through minute surface polish, makes duplexer 4 be sealed at its surface and transports Duplexer 4, makes adhesive polymerizing curable by active energy beam irradiation unit 31,32 during being somebody's turn to do.It is polymerized making adhesive Solidification, and make the abundant closely sealed aspect of duplexer 4, the diameter of roller 13 is not particularly limited.Roller 13 is with the rotation corresponding to line speed Rotary speed and be driven in rotation.It addition, when the irradiation utilizing active energy beam carries out polymerizing curable, roller 13 also can be as use Work in making the chill roll of heat heat radiation produced by duplexer 4.Now, the surface temperature of chill roll be preferably set to 4～ 30℃。
The light source used when carrying out the polymerizing curable of adhesive by the irradiation of active energy beam is not particularly limited, But it is preferably to have at below wavelength 400nm and sends out light source photodistributed.As such light source such as can enumerate low pressure mercury lamp, in Pressure mercury lamp, high voltage mercury lamp, ultrahigh pressure mercury lamp, chemical lamp, black light lamp, microwave-excited mercury lamp, metal halid lamp.1st active-energy The irradiation of the active energy beam in roentgenization operation is preferably divided into and repeatedly carries out.Figure 1 illustrates: active energy beam Sub irradiation situation about carrying out for 2 times, i.e. the conveyance direction along duplexer configures 2 light source (active energy beam irradiation units 31 and 32) situation, but be not limited to 2 times, the most also it is divided into 3 times and carries out.
Fig. 2 is the conveyance direction quilt representing the light source used in the 1st active energy beam irradiation process along duplexer It is configured with manufacture device 3, polarization plates.In manufacture device shown in Fig. 2, compared with the manufacture device shown in Fig. 1, difference Point is only that, as using light source in the 1st active energy beam irradiation process, except active energy beam irradiation unit 31,32 Outside, it is also configured with active energy beam irradiation unit 33, therefore omits the description other element.
In the 1st active energy beam irradiation process, with the accumulated light by the ultraviolet (UVB) between roller 13 it is 10mJ/cm2Above and 185mJ/cm2Following mode, irradiates active energy beam to duplexer 4.Preferably with ultraviolet (UVB) Accumulated light be 60mJ/cm2Above and 175mJ/cm2Following mode irradiates active energy beam.When accumulated light exceedes 185mJ/cm2Time, the producing cause of wavy speckle that will become in polarization plates.It addition, when accumulated light is less than 10mJ/cm2Time, Thereafter irradiate in the operation (the 2nd active energy beam irradiation process) of active energy beam with level, active energy beam Accumulated light change is produced greatly and easily cure shrinkage, the most easily produce wave volume.
Each photo-irradiation intensity of active energy ray curable adhesive is determined according to the composition of each adhesive, It is not particularly limited, but preferably 10～5000mW/cm2.If the photo-irradiation intensity of resin combination is less than 10mW/cm2, the most instead Answer overlong time, if more than 5000mW/cm2, then heating during the polymerization of the heat that radiated due to light source and compositions, therefore have can Xanthochromia or the deterioration of polarizing coating of the constituent material i.e. composition epoxy resin etc. of adhesive can be produced.It should be noted that shine Penetrate intensity and be preferably intensity light cationic polymerization initiators being activated to effective wavelength region, more preferably wavelength 400nm The intensity of following wavelength region, the intensity of the wavelength region of further preferred wavelength 280～320nm.
When active energy beam is ultraviolet, in the operation that long-pending body layer 4 is irradiated active energy beam, preferably limit pair Duplexer 4 applies the tension force of 100～800N/m at length direction (conveyance direction), while reach more than 0.1 second with irradiation time Linear velocity conveyance duplexer 4.
(the 2nd active energy beam irradiation process)
When the accumulated light of the active energy beam produced by active energy beam irradiation unit 31,32 is insufficient, excellent Select and the 2nd later active energy beam irradiation unit 16～18 is set, thus boost active energy beam, promote duplexer The solidification of the adhesive of 4.Tiring out of ultraviolet (UVB) in whole operations including the 1st active energy beam irradiation process Long-pending light quantity is 10mJ/cm2Above, particularly preferably so that accumulated light reaches 60～5000mJ/cm2Mode set.When to above-mentioned The accumulated light of adhesive is less than 10mJ/cm2Time, the generation of the spike being derived from initiator is insufficient, and the solidification of adhesive is not Fully.On the other hand, when this accumulated light is more than 5000mJ/cm2Time, irradiation time becomes the longest, and it is unfavorable to improve productivity ratio. Now, according to the film used or the combination etc. of adhesive type, which kind of wavelength region (UVA(320～390nm) or UVB(280 ～320nm) etc.) in required accumulated light will there are differences.
In order to reliably carry out the solidification of the adhesive of polarization plates (duplexer) end, such as, can enumerate and make electrodeless D lamp Bubble (バ Le Block ラ Application プ) i.e. FUSION system " Light Hammer10 " with relative to film move for across mode and arrange Method etc..
The ratio of active energy ray curable resin generation solidification, i.e. response rate, preferably more than 90%, more preferably More than 95%.
(polarization plates coiling process)
The tension force batching duplexer (polarization plates) 4 is set to 30N/cm2～150N/cm2In the range of.It is preferably 30N/cm2 ～120N/cm2In the range of.When with less than 30N/cm2Tension force transfer strip roller volume time, due to can cause winding mistake Position, the most not preferred, when tension force is more than 150N/cm2Time, roll tightly stretch tight (I ま り) relatively strong, easily produce lax.
It should be noted that it is the longest to batch length, the most easily cause when same tension force that rolling tightly stretches tight (is difficult to when unreeling revert to The phenomenon of smooth state), thus can make polarization coiled sheet in core, while making tension force continuously or interim reducing.Even if Implement above-mentioned this so-called gradual change in the method reducing tension force, tension force 150N/cm to be set to now2Below.
Batch the length in the polarization plates of core to be not particularly limited, but preferably more than 100m and below 4000m.
The diameter of cylindric core is preferably 6 inches～12 inches.The diameter of core is the bigger the better, more preferably 11 English Very little, 12 inches etc., but when diameter is excessive, has and be difficult to transfer or the tendency of keeping.
Owing to the material of cylindric core uses at dust free room, as long as therefore itself being not likely to produce dust and can ensure that Suitable intensity with the wider polarization plates of reeling width, is then not particularly limited, optional FRP(fiberglass-reinforced plastic) etc..
Embodiment
Hereinafter, enumerate embodiment so that the present invention is described in more detail, but the invention is not limited in these embodiments.
［ embodiment 1 ］
(making of polarizing coating)
As the former material film of polyvinyl alcohol, use the degree of polymerization 2400,99.9 moles of % of saponification degree, thickness 75 μm, width The polyvinyl alcohol film of the strip of 3000mm " OPL film M-7500(Japan synthesis system) ".Stretching is by driving before and after treatment trough The additional all speed differences of dynamic niproll are carried out.
First, in the way of not making former material film lax, keep the tense situation of film, at the swelling groove equipped with the pure water of 30 DEG C Middle dipping 80 seconds, makes film the most swelling.It is 1.2 with the roller speed ratio of the swelling entrance together in swelling groove with outlet.Carry out Utilize niproll except water after, in the water retting groove equipped with the pure water of 30 DEG C impregnate 160 seconds.Make operating direction in this groove Stretching ratio is 1.09 times.
Then, soak in the chroma tank equipped with iodine/potassium iodide/water aqueous solution with mass ratio range as 0.02/2.0/100 Stain, carries out uniaxial tension with the stretching ratio of about 1.5 times simultaneously.Then, equipped with potassium iodide/boric acid/water with mass ratio range it is being The boric acid groove of the aqueous solution of 12/3.7/100 impregnates 130 seconds at 55.5 DEG C, carries out uniaxial tension until from former material simultaneously Accumulation stretching ratio reach 5.7 times.Then, equipped with potassium iodide/boric acid/water with mass ratio range be 9/2.4/100 water-soluble The boric acid groove of liquid impregnates 60 seconds at 40 DEG C.
Then, with the pure water about 16 seconds of 8 DEG C in rinsing bowl, then, pass sequentially through about 60 DEG C drying oven, about 85 DEG C drying oven, be dried in the way of the time of staying in these drying ovens adds up to 160 seconds.So, adsorbed There is the polarizing coating of iodine thickness 28 μm that makes it be orientated.
(making of polarization plates)
As hyaline membrane, prepare the cellulose acetate resin film " KC4CR-1 imparting phase difference characteristics of thickness 40 μm (Konica Minolta Opto(strain) makes) " and tri acetyl cellulose membrane " the KC8UX2MW " (Konica of thickness 80 μm Minolta company system).
Then, at the one side of the above-mentioned cellulose acetate resin film " KC4CR-1 " having imparted phase difference characteristics, use The glue of adhesive apparatus for coating (Micro Chamber Doctor: Mechanology Inc. of Fuji system) coated UV line (UVB) curing type Stick, i.e. composition epoxy resin " KR series " (ADEKA company system, cation polymerization initiator).It addition, in above-mentioned three second The one side of acyl cellulose membrane " KC8UX2MW ", uses the glue of identical adhesive apparatus for coating coated UV line (UVB) curing type Stick, i.e. composition epoxy resin " KR series " (ADEKA company system, cation polymerization initiator).Now, adhesive is coated with The linear velocity of the polarizing film stack of cloth apparatus is set to 25m/ minute, makes the reverse of the gravure roll conveyance direction towards stacking material Rotate, make the thickness of the adhesive layer on cellulose acetate resin film " KC4CR-1 " be about 4.0 μm, make triacetyl cellulose The thickness of the adhesive layer on film " KC8UX2MW " is about 3.3 μm (adding up to about 7.3 μm).
Then, two-sided at above-mentioned polarizing coating, via above-mentioned composition epoxy resin (ultraviolet hardening adhesive), profit Above-mentioned cellulose acetate resin film " KC4CR-1 " and tri acetyl cellulose membrane " KC8UX2MW " laminating (laminating is made with niproll Pressure 1.5MPa).
For being fitted with the polarizing coating of above-mentioned 2 kinds of hyaline membranes, while length direction apply the tension force of 600N/m and make its with Chill roll is closely sealed, while transfer with linear velocity 25m/ minute so that it is by by metal halide lamp 2 lamp (GS-YUASA company System, the electric energy 130W/cm of 1 lamp) in the ultraviolet that irradiates, carry out the 1st active energy beam irradiation process, then be passed to by it The purple that electrodeless D bulb 3 lamp (Fusion company system " Light Hammer10 ", the electric energy 216W/cm of 1 lamp) of rear setting irradiates In outside line, carry out the 2nd active energy beam irradiation process, be thus fabricated to polarization plates.
Above-mentioned electrodeless D bulb 3 lamp refers to: the width at film arranges the list of 6 electrodeless D bulbs Unit, film length direction configure 3 row devices.
During by metal halide lamp, make to fit in tri acetyl cellulose membrane " KC8UX2MW " the contact quilt of above-mentioned polarizing coating It is set in the outer peripheral face of the chill roll of 23 DEG C, from cellulose acetate resin film " KC4CR-1 " side irradiation ultraviolet radiation.Thus, may be used Suppress the hot adhesive caused by impact in the 1st active energy beam irradiation process or the deterioration of polarizing coating.
In the 1st active energy beam irradiation process in the present embodiment, metal halide lamp adds up to the tired of the ultraviolet of 2 lamps The total amount of long-pending light quantity is 172mJ/cm2.It addition, in the 2nd active energy beam irradiation process arranged thereafter, electrodeless D lamp Bubble adds up to the total amount of the accumulated light of the ultraviolet of 3 lamps to be 296mJ/cm2.From the foregoing, irradiate active energy beam All the total amount of the accumulated light of the ultraviolet in operation (the 1st and the 2nd active energy beam irradiation process) is 468mJ/ cm2.For accumulated light herein, it is according to being, in the wavelength region (UVB) of wavelength 280～320nm, is irradiated by force by light The measured value that the determinator (Fusion UV company UV Power Puck II) of degree obtains.The polarization plates more than made closely sealed Property aspect is no problem.
(ocular estimate)
For the polarization plates as above made, utilize the generation shape that wavy speckle and wave are rolled up by the reflex irradiating fluorescent lamp Condition is evaluated.Specifically, confirm the surface of polarization plates when having fluctuating, be evaluated as " having " wavy speckle, unconfirmed to fluctuating time, It is evaluated as the wavy speckle of "None".It addition, confirm when polarization plates has been integrated with wave, it is evaluated as " having " wave volume, unconfirmed to wave inception During wave, it is evaluated as "None" wave volume.Result is as shown in table 1.
［ embodiment 2 ］
Make polarizing coating pass through metal halide lamp 3 lamp (GS-YUASA company system, the electric energy 60W/cm of 1 lamp) and carry out the 1st Active energy beam irradiation process, then be passed to by electrodeless D bulb 1 lamp (the Fusion company system " Light arranged afterwards Hammer10 ", the electric energy 180W/cm of 1 lamp) ultraviolet that irradiates carries out the 2nd active energy beam irradiation process.Except this with Outward, operate similarly to Example 1, be fabricated to polarization plates.
In the 1st active energy beam irradiation process of the present embodiment, metal halide lamp adds up to the accumulation of the ultraviolet of 3 lamps The total amount of light quantity is 173mJ/cm2.It addition, in the 2nd active energy beam irradiation process arranged behind, electrodeless D lamp Bubble adds up to the total amount of the accumulated light of the ultraviolet of 1 lamp to be 63mJ/cm2.From the foregoing, irradiate active energy beam All the total amount of the accumulated light of the ultraviolet in operation (the 1st and the 2nd active energy beam irradiation process) is 236mJ/ cm2.For accumulated light herein, it is according to being, the photo-irradiation intensity of the wavelength region (UVB) of wavelength 280～320nm The measured value of determinator (Fusion UV company UV Power Puck II).The adaptation aspect of the polarization plates more than made No problem.
For the polarization plates of embodiment 2, carry out ocular estimate similarly to Example 1.Result is as shown in table 1.
［ embodiment 3 ］
(GS-YUASA company system, the electric energy 60W/cm of 1 lamp subtract with 50% to make polarizing coating pass through metal halide lamp 1 lamp Light optical filter) carry out the 1st active energy beam irradiation process, in addition, operate similarly to Example 1, be fabricated to partially Vibration plate.
In the 1st active energy beam irradiation process in the present embodiment, metal halide lamp adds up to the tired of the ultraviolet of 1 lamp The total amount of long-pending light quantity is 20mJ/cm2.It addition, in the 2nd active energy beam irradiation process arranged behind, electrodeless D lamp Bubble adds up to the total amount of the accumulated light of the ultraviolet of 3 lamps to be 296mJ/cm2.From the foregoing, irradiate active energy beam All the total amount of the accumulated light of the ultraviolet in operation (the 1st and the 2nd active energy beam irradiation process) is 316mJ/ cm2.For accumulated light herein, it is according to being, the photo-irradiation intensity of the wavelength region (UVB) of wavelength 280～320nm The measured value of determinator (Fusion UV company UV Power Puck II).The adaptation aspect of the polarization plates more than made No problem.
For the polarization plates of embodiment 3, carry out ocular estimate similarly to Example 1.Result is as shown in table 1.
［ comparative example 1 ］
Make polarizing coating pass through metal halide lamp 2 lamp (GS-YUASA company system, the electric energy 140W/cm of 1 lamp) and carry out the 1st Active energy beam irradiation process.In addition, operate similarly to Example 1, be fabricated to polarization plates.
In the 1st active energy beam irradiation process in this comparative example, metal halide lamp adds up to the tired of the ultraviolet of 2 lamps The total amount of long-pending light quantity is 191mJ/cm2.It addition, in the 2nd active energy beam irradiation process arranged behind, electrodeless D Bulb adds up to the total amount of the accumulated light of the ultraviolet of 3 lamps to be 296mJ/cm2.From the foregoing, irradiation active energy beam Whole operations (the 1st and the 2nd active energy beam irradiation process) in the total amount of accumulated light of ultraviolet be 487mJ/ cm2.For accumulated light herein, it is according to being, in the wavelength region (UVB) of wavelength 280～320nm, is irradiated by force by light The measured value that the determinator (Fusion UV company UV Power Puck II) of degree obtains.The polarization plates more than made closely sealed Property aspect is no problem.
For the polarization plates of comparative example 1, carry out ocular estimate similarly to Example 1.Result is as shown in table 1.
［ comparative example 2 ］
Make polarizing coating pass through metal halide lamp 3 lamp (GS-YUASA company system, the electric energy 100W/cm of 1 lamp) and carry out the 1st Active energy beam irradiation process.In addition, operate similarly to Example 2, be fabricated to polarization plates.
In the 1st active energy beam irradiation process in this comparative example, metal halide lamp adds up to the tired of the ultraviolet of 3 lamps The total amount of long-pending light quantity is 289mJ/cm2.It addition, in the 2nd active energy beam irradiation process arranged behind, electrodeless D Bulb adds up to the total amount of the accumulated light of the ultraviolet of 1 lamp to be 63mJ/cm2.From the foregoing, irradiate active energy beam All the total amount of the accumulated light of the ultraviolet in operation (the 1st and the 2nd active energy beam irradiation process) is 352mJ/ cm2.For accumulated light herein, it is according to being, in the wavelength region (UVB) of wavelength 280～320nm, is irradiated by force by light The measured value that the determinator (Fusion UV company UV Power Puck II) of degree obtains.The polarization plates more than made closely sealed Property aspect is no problem.
For the polarization plates of comparative example 2, carry out ocular estimate similarly to Example 1.Result is as shown in table 1.
［ comparative example 3 ］
Do not carry out the 1st active energy beam irradiation process, and (Fusion is public to make polarizing coating pass through by electrodeless D bulb 3 lamp Department's system " Light Hammer10 ", the electric energy 216W/cm of 1 lamp) in the ultraviolet that irradiates, carry out the 2nd active energy beam and irradiate Operation.In addition, operate similarly to Example 1, be fabricated to polarization plates.
In the 2nd active energy beam irradiation process in this comparative example, electrodeless D bulb adds up to the tired of the ultraviolet of 3 lamps The total amount of long-pending light quantity is 296mJ/cm2, irradiate whole operations (the 1st and the 2nd active energy beam irradiation of active energy beam Operation) in the total amount of accumulated light of ultraviolet be also 296mJ/cm2.For accumulated light herein, it is according to being, In the wavelength region (UVB) of wavelength 280～320nm, by determinator (the Fusion UV company UV Power of photo-irradiation intensity Puck II) measured value that obtains.The adaptation aspect of the polarization plates more than made is no problem.
For the polarization plates of comparative example 3, carry out ocular estimate similarly to Example 1.Result is as shown in table 1.
[table 1]
In table 1, empty hurdle ("-") is to represent to there is not this.Show in table 1, for the polarization plates of embodiment 1～3, all Without the problem of adaptation, also confirm the generation rolled up without wavy speckle and wave simultaneously.On the other hand, for comparative example 1,2, can confirm that There is the generation of wavy speckle, for comparative example 3, can confirm that the generation that wave is rolled up.From result above, by making the 1st activity Accumulated light in energy-ray irradiation process is 10mJ/cm2Above and 185mJ/cm2Below, it is possible to prevent wavy speckle and wave The generation of volume.
Industrial applicability
The polarization plates of the present invention, can be efficiently applied on the various display with liquid crystal display as representative.
Symbol description
1 polarizing coating
2,3 hyaline membrane
4 duplexers (polarization plates)
11,12 adhesive apparatus for coating
13 rollers (chill roll)
16,17,18,31,32,33 active energy beam irradiation unit
19 conveyance niprolls
20 takers-ins

Claims (4)

1. a manufacture method for polarization plates, is the manufacture of polarization plates of hyaline membrane of fitting at the single or double of polarizing coating Method, described manufacture method possesses successively:
Adhesive painting process, at one side or the coat activated energy of single or double of described polarizing coating of described hyaline membrane The adhesive of ray curing；
Bonding process, to via described adhesive in the stacking of hyaline membrane described in the single or double stacking of described polarizing coating Body applies pressure, so that described hyaline membrane is fitted with described polarizing coating；
1st active energy beam irradiation process, removes when making described duplexer be sealed to the roller that conveyance direction rotates In sending the period of described duplexer, described duplexer is irradiated active energy beam, makes described adhesive solidify；And
2nd active energy beam irradiation process, irradiates active energy beam to described duplexer and makes described adhesive solidify,
Wherein, in described 1st active energy beam irradiation process, the accumulated light of ultraviolet (UVB) is 10mJ/cm2Above and 185mJ/cm2Hereinafter, and described 1st active energy beam irradiation process and described 2nd active energy beam irradiation process tired The total amount of long-pending light quantity is 236～468mJ/cm2。
2. the manufacture method of polarization plates as claimed in claim 1, wherein, described roller is chill roll.
3. the manufacture method of polarization plates as claimed in claim 1 or 2, wherein, at least one party of described hyaline membrane is that acetic acid is fine Dimension prime system resin molding.
4. the manufacture method of polarization plates as claimed in claim 1 or 2, wherein, described 1st active energy beam irradiation process In, the irradiation of described active energy beam utilizes multiple light source to carry out.
CN201280049409.1A 2011-10-07 2012-10-02 The manufacture method of polarization plates Active CN103874943B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2011-223036 2011-10-07
JP2011223036 2011-10-07
PCT/JP2012/075503 WO2013051554A1 (en) 2011-10-07 2012-10-02 Method for manufacturing polarizer

Publications (2)

Publication Number Publication Date
CN103874943A CN103874943A (en) 2014-06-18
CN103874943B true CN103874943B (en) 2016-09-28

Family

ID=48043711

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201280049409.1A Active CN103874943B (en) 2011-10-07 2012-10-02 The manufacture method of polarization plates

Country Status (5)

Country Link
JP (1) JP2013092766A (en)
KR (1) KR20140088540A (en)
CN (1) CN103874943B (en)
TW (1) TWI545356B (en)
WO (1) WO2013051554A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI693998B (en) * 2014-02-13 2020-05-21 日商富士軟片股份有限公司 Manufacturing method of laminated film
JP6243872B2 (en) * 2014-05-19 2017-12-06 富士フイルム株式会社 Method for producing quantum dot-containing laminate, quantum dot-containing laminate, backlight unit, liquid crystal display device, and quantum dot-containing composition
JP2017058664A (en) * 2015-09-14 2017-03-23 住友化学株式会社 Method for manufacturing laminate optical film and an apparatus for manufacturing laminate optical film
JP6741440B2 (en) * 2016-02-29 2020-08-19 住友化学株式会社 Laminated optical film manufacturing method and laminated optical film manufacturing apparatus
JP6612294B2 (en) * 2017-07-20 2019-11-27 住友化学株式会社 Cutting device and method of manufacturing polarizing plate
TWI708676B (en) * 2017-08-16 2020-11-01 住華科技股份有限公司 Lamination system
TWI708675B (en) * 2017-08-16 2020-11-01 住華科技股份有限公司 Manufacturing method of optical film
JP7096677B2 (en) * 2018-03-07 2022-07-06 日東電工株式会社 Manufacturing method of dimming film
JP2020204700A (en) * 2019-06-17 2020-12-24 日東電工株式会社 Method for manufacturing laminated polarization film and device for manufacturing laminated polarization film
TWI785994B (en) * 2022-02-24 2022-12-01 住華科技股份有限公司 Ultraviolet light irradiation device, polarizing plate laminating apparatus using the same, and polarizing plate laminating method
KR102514364B1 (en) * 2022-04-27 2023-03-27 (주)지우텍 UV curing device for polarizing plate manufacturing consisting of three steps

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004077768A (en) * 2002-08-16 2004-03-11 Fuji Photo Film Co Ltd Polarizing plate and manufacturing method therefor
JP4243952B2 (en) * 2002-12-26 2009-03-25 新日本石油株式会社 Optical element manufacturing method
JP4306270B2 (en) * 2003-02-12 2009-07-29 住友化学株式会社 Polarizing plate, manufacturing method thereof, optical member, and liquid crystal display device
JP4861968B2 (en) * 2007-11-30 2012-01-25 住友化学株式会社 Manufacturing method of polarizing plate
JP5098060B2 (en) * 2008-10-27 2012-12-12 フジコピアン株式会社 Photocurable adhesive composition and polarizing plate using the same
JP5407527B2 (en) * 2009-04-28 2014-02-05 住友化学株式会社 Manufacturing method of optical display panel
JP2011022202A (en) * 2009-07-13 2011-02-03 Sumitomo Chemical Co Ltd Polarizing plate and image display device using the same
JP2011128654A (en) * 2011-03-17 2011-06-30 Nitto Denko Corp Method of manufacturing polarizing plate, polarizing plate, and image display device

Also Published As

Publication number Publication date
KR20140088540A (en) 2014-07-10
TW201331638A (en) 2013-08-01
CN103874943A (en) 2014-06-18
JP2013092766A (en) 2013-05-16
WO2013051554A1 (en) 2013-04-11
TWI545356B (en) 2016-08-11

Similar Documents

Publication Publication Date Title
CN103874943B (en) The manufacture method of polarization plates
CN104395786B (en) The manufacture method and manufacture device of polarization plates
CN103842864B (en) The manufacture method of polarization plates
CN103814311B (en) The manufacture method of polarization plates
CN103842860B (en) The manufacture method of polarization plates
CN104823088B (en) The manufacture method of polarizing coating and polarization plates
CN104272149B (en) The manufacture method of stacked film
CN103842863B (en) The manufacturing method of polarization plates
KR101956413B1 (en) Method for manufacturing polarizer
JP5449815B2 (en) Manufacturing method of polarizing plate
CN104428701B (en) The manufacture method of polarization plates
CN103907036A (en) Method for manufacturing polarizing plate, and apparatus for manufacturing polarizing plate
CN103858031B (en) The manufacture method of polarization plates
CN107407761A (en) The manufacture method of the polarizing coating of subsidiary diaphragm
KR101956412B1 (en) Method for manufacturing polarizer
TWI618951B (en) Method for manufacturing polarizing plate
JP5668086B2 (en) Manufacturing method of polarizing plate
KR20150074596A (en) Polarizing Plate and Liquid Crystal Display Comprising the Same

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant