CN1637443A - Iodine polarizing thin film and producing method thereof and polarizing disk using the same - Google Patents
Iodine polarizing thin film and producing method thereof and polarizing disk using the same Download PDFInfo
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- CN1637443A CN1637443A CNA200410100788XA CN200410100788A CN1637443A CN 1637443 A CN1637443 A CN 1637443A CN A200410100788X A CNA200410100788X A CN A200410100788XA CN 200410100788 A CN200410100788 A CN 200410100788A CN 1637443 A CN1637443 A CN 1637443A
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- iodine
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- 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
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
-
- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- 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
- G02F1/133528—Polarisers
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Polarising Elements (AREA)
- Liquid Crystal (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
To provide an iodine-based polarizing film improving durability basing a polyvinyl alcohol-based resin, and to provide a polarizing plate and a method for manufacturing the polarizing film. The iodine-based polarizing film comprises a polyvinyl alcohol-based resin film adsorbing and orientating iodine. The polyvinyl alcohol-based resin film further provides the iodine-based polarizing film containing an aldonic acid-based compound selected from among aldonic acid and aldonic acid salt. When manufacturing the iodine-based polarizing film through a process for uniaxially extending the polyvinyl alcohol-based resin film, a process for dyeing the polyvinyl alcohol-based resin film in a water solution containing iodine and potassium iodide, a process for immersing the film after dyeing in a water solution containing boric acid and a process for washing by water after immersion to the water solution containing boric acid, the polarizing film can be manufactured by dissolving and including the aldonic acid compound in the water solution used after iodine dyeing.
Description
Technical field
The present invention relates to a kind of iodine and be polarization film, its manufacture method and using this iodine is that the iodine of polarization film is polaroid.
Background technology
Polarization film is usually by making as the iodine of dichromatism pigment or dichroic dye is adsorbed in the polyvinyl alcohol resin film and orientation is made.On at least one face of this polarization film, be situated between and help bond layer to fit to form polaroid behind the protective film of forming by cellulose triacetate etc., can be used for liquid crystal indicator etc.Using iodine to be called as iodine as the polarization film of dichromatism pigment is polarization film, and on the other hand, using dichroic dye to be called as dyestuff as the polarization film of dichromatism pigment is polarization film.Wherein, iodine is that polarization film is that polarization film is compared with dyestuff, can demonstrate high transmittance and, high degree of polarization, be high-contrast, so be widely used.Though iodine is polarization film is polarization film surpassing dyestuff aspect these optical characteristics, but being not so good as dyestuff aspect optical durability is polarization film, for example, if be that polarization film places under the dry heat condition, can produce then that transmittance descends or problem such as polaroid variable color with iodine.
On the other hand, along with the expansion that utilizes the field and the peripheral development of technology of liquid crystal indicator, the polaroid performance demands is also become strict more in recent years.Specifically, require transmittance and degree of polarization height, i.e. the also good polaroid of high-contrast and thermotolerance and humidity resistance.At this point, for example open in the clear 58-68008 communique (patent documentation 1) the spy, proposed with through the polyester based resin of unilateral stretching polarization film as matrix material.But, can not obtain the two all good polarization film of polarizing properties and permanance, thereby require further improvement.
In addition; open in the 2000-35512 communique (patent documentation 2) the spy; proposed by in the boric acid aqueous solution that contains zinc ion and potassium iodide, the polyvinyl alcohol resin film through iodine staining being carried out dip treating; make polarization film contain the zinc of ormal weight; thereby improve the method for this polarization film permanance at high temperature; open in the 2003-262731 communique (patent documentation 3) the spy; proposed to improve the method for polaroid permanance by containing polyacrylic acid or its derivant in the bond layer that is used in fit absorption iodine and polyvinyl alcohol resin film that is orientated and protective film.
[patent documentation 1] spy opens clear 58-68008 communique
[patent documentation 2] spy opens the 2000-35512 communique
[patent documentation 3] spy opens the 2003-262731 communique
Summary of the invention
Employings such as the inventor are different from the method among the above-mentioned patent documentation 1-3, are that the permanance of polaroid is studied to how improving the iodine of being made up of polyvinyl alcohol resin, thereby have finished the present invention.Therefore the object of the present invention is to provide polyvinyl alcohol resin as the improvement of matrix the iodine of permanance be polarization film, and provide its manufacture method, also provide the permanance of using this polarization film good polaroid.
The inventor etc. study on the basis of this purpose, found that, boric acid after the stretching of passing through the polyvinyl alcohol resin film, iodine staining, dyeing is handled and washing, when manufacturing iodine is polarization film, by making the aqueous solution that contains the iodine that is useful on iodine staining, containing the aqueous solution that is useful on the boric acid that boric acid handles and be used for washing at least a material of water of processing, dissolving contains gluconic acid or its salt, and handle the polyvinyl alcohol resin film with this aqueous solution, can suppress the problems such as variable color of polarization film under xeothermic, thereby finish the present invention.
Promptly according to the present invention, can provide by the polyvinyl alcohol resin film of absorption iodine and orientation form and also this polyvinyl alcohol resin film in contain the uronic acid based compound that is selected from uronic acid and glycuronate iodine be polarization film.
In addition according to the present invention, it is the manufacture method of polarization film that this iodine can also be provided, in this method, passing through: the operation of the polyvinyl alcohol resin film being implemented unilateral stretching, with the operation of the aqueous solution that contains iodine and potassium iodide with this polyvinyl alcohol resin film dyeing, in borated aqueous solution, the polyvinyl alcohol resin film after the dyeing is carried out the operation of dip treating, when being polarization film with the operation manufacturing iodine of in borated aqueous solution, implementing to wash after the dip treating, make the above-mentioned aqueous solution that contains iodine and potassium iodide, in the optional at least a material in the water of above-mentioned aqueous solution that contains boric acid and above-mentioned washing usefulness, dissolving contains the uronic acid based compound that is selected from uronic acid and glycuronate.
In addition according to the present invention, also can be provided at single face that the iodine that contains above-mentioned uronic acid based compound is polarization film or two-sided on the fitted iodine of protective film be polaroid.
Iodine according to the present invention be polarization film or on its at least one single face the iodine of applying protective film be that polaroid can prevent to transfer the aging of postpone at dry heat condition, permanance is good.In addition, these polarization films and polaroid and comparing in the past, parallel transmission tone more approaches muted color.
Embodiment
Below, explain the present invention.Iodine is that polarization film is the polarization film that absorption iodine also is orientated on the polyvinyl alcohol resin film.In the present invention, make and contain the uronic acid based compound in this polarization film.
The polyvinyl alcohol resin that constitutes polarization film can be by being that resin carries out saponification and obtains to polyvinyl acetate (PVA).As polyvinyl acetate (PVA) is resin, except the polyvinyl acetate (PVA) as the homopolymer of vinyl acetate, also can enumerate vinyl acetate and can be with the multipolymer of other monomer of its copolymerization etc.As can with other vinyl acetate copolymerized monomer, can enumerate for example unsaturated carboxylic acid class, olefines, vinyl ethers, unsaturated sulfonic acid class etc.The saponification degree of polyvinyl alcohol resin is generally about 85-100 mole %, preferably about 98-100 mole %.This polyvinyl alcohol resin can also carry out modification, for example, also can use with aldehydes modified polyethylene alcohol formal and polyvinyl acetal etc.In addition, the degree of polymerization of this polyvinyl alcohol resin is generally about 1000-10000, and preferred degree of polymerization is about 1500-5000.
This polyvinyl alcohol resin is made the starting material film that the material that obtains behind the film can be used as polarization film.Be not particularly limited for the method for polyvinyl alcohol resin being made film, can be with known method system film.Thickness for the starting material film of being made up of polyvinyl alcohol resin is not particularly limited, and for example, can be about 5 μ m-150 μ m, is preferably about 10 μ m-150 μ m.
Iodine is that polarization film can pass through following operation manufacturing: to this polyvinyl alcohol resin film implement the operation of unilateral stretching, adsorb with this polyvinyl alcohol resin film of iodine staining this iodine operation, handle the operation of the polyvinyl alcohol resin film that has adsorbed iodine and the operation of after the processing that utilizes this boric acid aqueous solution, washing with boric acid aqueous solution.
Unilateral stretching both can be carried out before iodine staining, also can carry out simultaneously with iodine staining, also can carry out after iodine staining.When carrying out unilateral stretching after iodine staining, this unilateral stretching both can be carried out before boric acid is handled, and also can carry out in boric acid is handled.Certainly, also can carry out unilateral stretching in these a plurality of stages.When unilateral stretching, both can between the different roller of circumferential speed, carry out unilateral stretching, also can use hot-rolling to carry out unilateral stretching.In addition, both can be the dry type stretching that in atmosphere, stretches, also can be the wet type that stretches under the state with solvent swell stretches.Stretching ratio is generally about 4-8 doubly.
When iodine was adsorbed in the polyvinyl alcohol resin film, by containing the aqueous solution of iodine, normally this polyvinyl alcohol resin film of dipping dyeed and finishes in the aqueous solution that contains iodine and potassium iodide.Also have, before above-mentioned dyeing is handled, preferably in water, the polyvinyl alcohol resin film is carried out dip treating in advance.In the aqueous solution that contains iodine and potassium iodide, the content of iodine is about the 0.01-1 weight portion in per 100 weight parts waters, and the content of potassium iodide is about the 0.5-20 weight portion in per 100 weight parts waters.The temperature of this aqueous solution is about 20-40 ℃, and in addition, the dip time in this aqueous solution is about 20-1800 second.
Boric acid behind the iodine staining handles, by carrying out in boric acid aqueous solution through the polyvinyl alcohol resin of iodine staining is thin film dipped.In boric acid aqueous solution, the content of boric acid is generally about 2-15 weight portion, preferably about 5-12 weight portion in per 100 weight parts waters.Preferably contain potassium iodide in this boric acid aqueous solution.When containing potassium iodide in the boric acid aqueous solution, the amount content of this potassium iodide is generally below 40 weight portions in per 100 weight parts waters, below preferred 30 weight portions.This potassium iodide preferably contains more than 0.1 weight portion in per 100 weight parts waters in addition, more preferably more than 1 weight portion.Dip time in boric acid aqueous solution is generally about 60-1200 second, preferably about 150-600 second, more preferably from about 200-400 second.
Polyvinyl alcohol resin film after the boric acid processing is washed processing usually.Wash when handling, will be thin film dipped in water through the polyvinyl alcohol resin that boric acid is handled.The washing back obtains the polyvinyl alcohol resin film of absorption iodine orientation by carrying out dried, and promptly iodine is polarization film.
In the present invention, making this iodine is to contain the uronic acid based compound in the polarization film, specifically, contains uronic acid or its salt.So-called uronic acid is the polyhydroxycarboxyliacid acid that obtains behind the aldehyde radical of oxidation aldose, available general formula HOCH
2(CHOH)
nCOOH (wherein, n is the integer more than 1) expression.As the example of typical uronic acid, can enumerate gluconic acid, galactonic acid (galactonic acid), mannonic acid (mannonic acid), talonic acid (talonic acid), gulonate (gulonic acid), idonic acid (idonic acid), allonic acid (allonic acid), altronic acid (altronic acid) etc.Be used for the compound that uronic acid of the present invention is not limited to specifically enumerate here.Uronic acid can use these separately respectively, perhaps also can be used in combination a plurality of.In uronic acid, because gluconic acid is in industrial easy acquisition, so preferred.As the salt of uronic acid, can enumerate sodium salt, sylvite, calcium salt, zinc salt etc.Wherein, because zinc salt is suppressing effective at xeothermic aspects such as variable color down of polarization film or polaroid, so preferably.
Uronic acid and alditol lactone are in equilibrium relation usually in aqueous solution, and the beguine that exists of uronic acid and alditol lactone changes according to the pH of aqueous solution.The alkalescence of aqueous solution is strong more, and it is many more that the ratio of uronic acid becomes, and the acidity of opposite aqueous solution is strong more, and it is many more that the ratio of alditol lactone becomes.In addition, then can obtain the alditol lactone, so the so-called uronic acid among the present invention can also comprise the alditol lactone as its lactone if want except uronic acid itself by acquisition solid matters such as concentrated uronic acid aqueous solution.As having the example of the alditol lactone of equilibrium relation, can enumerate the gluconolactone corresponding, the galactonolactone corresponding, and also there is corresponding alditol lactone in other uronic acid with galactonic acid with gluconic acid with uronic acid.
Uronic acid can pass through the fermentation manufacturing of glucose usually, and sells according to this form.With regard to the uronic acid based compound that uses among the present invention, so long as have by being contained in the polarization film and can suppress the compound of the effect of the problems such as variable color under xeothermic, then can be uronic acid, also can be glycuronate.In addition, in the scope of the effect that does not hinder this uronic acid based compound, also can contain adjuvants such as a spot of stabilization agent and antiseptic.
In the present invention, the uronic acid based compound is being implemented the later stage introducing of dyeing with the aqueous solution that contains iodine normally in the manufacture process of above-mentioned polarization film.Specifically, can adopt in making the operation that iodine is polarization film as described above, make the aqueous solution that contains iodine and potassium iodide, contain the aqueous solution that is useful on the boric acid that boric acid handles and be used for the washing after above-mentioned boric acid is handled water choose any one kind of them or multiple material in the method for dissolved sugar aldehydic acid based compound.In these methods, preferably make the uronic acid based compound be dissolved in the method that is contained in the borated aqueous solution wherein.
Though can be at any stage dissolved sugar aldehydic acid based compound, its amount is generally about 0.01-60 weight portion in per 100 weight parts waters, more than preferred 0.5 weight portion, more preferably more than 1 weight portion, below also preferred 30 weight portions, more preferably below 15 weight portions.If the amount of uronic acid based compound is less than 0.01 weight portion in per 100 weight parts waters, the polarization film that then obtains can not be brought into play the effect that suppresses problems such as variable color down xeothermic fully.
The content of uronic acid based compound is generally about 0.001-30 weight % in the polarization film, more than the preferred 0.01 weight %, more preferably more than the 0.1 weight %, below the also preferred 25 weight %.If this amount very little, the polarization film that then obtains can not be brought into play the effect that suppresses problems such as variable color down xeothermic fully.
The uronic acid that contains in the polarization film of being made up of polyvinyl alcohol resin and the amount of salt thereof for example, can be measured with the method for this sample of enzymatic analysis after polarization film being dissolved in solvent.As the reagent of enzyme process, for example, can use " the F-キ ッ ト D-gluconic acid/D-glucofurone " sold by (strain) J.K. ィ Application -Na シ ョ Na Le etc.
Contain the polarization film that is obtained behind the uronic acid based compound by above-mentioned method and have the effect that can suppress the problems such as variable color under xeothermic.In addition, this polarization film also has the tone of parallel transmitted light and in the past the characteristics that approach muted color (neutral look) more of comparing simultaneously.
Stacked protective film just can make polaroid on the single face of the polarization film that obtains or two sides.As protective film, can enumerate as cellulose acetate resin films such as cellulose triacetate or cellulose diacetates; The acryl resin film; Polyester resin film; The polyarylate resin film; The polyethersulfone resin film; With the cyclic olefin of norborene and so on as cyclic polyolefin resin film of monomer etc.The thickness of protective film is generally about 10 μ m-200 μ m.
In addition, on the side surface of this polaroid, promptly expose on the surface of protective film and also known various functional layer such as anti-reflection layer or antiglare layer, hard conating, adhesive linkage can be set.
Embodiment
Below, according to embodiment the present invention is described in further detail, but the present invention is not limited to these.Also have, so-called parallel tone shown in the example, the tone that means the transmitted light when polarization film is injected the rectilinearly polarized light parallel with its axis of homology, the tone of so-called quadrature mean the tone of the transmitted light when polarization film is injected rectilinearly polarized light with its axis of homology quadrature.
Embodiment 1
99.9 moles of average degree of polymerization is about 2400, saponification degrees are more than the % and the polyvinyl alcohol film of thickness 75 μ m, carry out unilateral stretching in the dry type mode according to 5 times stretching ratio, again under the condition that keeps tense situation, impregnated in 60 ℃ the pure water 1 minute.Then, be at 28 ℃ of dippings 48 seconds down in 0.15/5/100 the aqueous solution in the weight ratio of iodine/potassium iodide/water.Then, in the aqueous solution that gluconic acid [50 weight % aqueous solution change into industry (strain) from Tokyo]/potassium iodide/boric acid/water is mixed according to 10/21/9.5/100 weight ratio, flooded 300 seconds down at 76 ℃.In addition, cleaned 1.5 seconds, under 50 ℃, carry out drying then, obtain the polarization film that is adsorbed in iodine on the polyvinyl alcohol (PVA) and is orientated, has adsorbed again gluconic acid thus with 15 ℃ pure water.According to following method, estimate the polarization film the obtain permanance under xeothermic.
" Evaluation of Durability method "
At first, use spectrophotometer [" UV-2200 " of (strain) Shimadzu Seisakusho Ltd. system], measure the spectral transmission τ (λ) of polarization film.By the spectral transmission τ that obtains (λ), obtain the parallel branch light transmission spectrum and the branch light transmission spectrum of quadrature, and, obtain parallel tone L by separately branch light transmission spectrum
*, a
*And b
*And the tone L of quadrature
*, a
*And b
*Then, this polarization film was placed 14 hours under 100 ℃ dry atmosphere, carried out endurancing.For the polarization film after this endurancing, measure spectral transmission τ (λ) again, obtain parallel tone L thus
*, a
*And b
*And the tone L of quadrature
*, a
*And b
*By the tone L before and after the endurancing
*, a
*And b
*,, obtain poor Δ L separately according to following formula (1)-(3)
*, Δ a
*With Δ b
*, obtain whole aberration Δ E according to following formula (4) again
*
ΔL
*＝(L
*)
after-(L
*)
before????(1)
Δa
*＝(a
*)
after-(a
*)
before????(2)
Δb
*＝(b
*)
after-(b
*)
before????(3)
Here, before is the value before the endurancing, and after is the value after the endurancing.
ΔE
*＝{(ΔL
*)
2+(Δa
*)
2+(Δb
*)
2}
1/2????(4)
Then, the tone b of quadrature
*Poor Δ b
*Aberration Δ E with integral body
*Value big more, be judged as in the degree of xeothermic down variable color big more.Parallel tone a before the endurancing has been shown in table 1
*And b
*And the hue difference ah b of endurancing front and back quadrature
*Aberration Δ E with integral body
*
Embodiment 2
Carry out unilateral stretching in the same manner with embodiment 1, will impregnated in polyvinyl alcohol film behind the pure water in the weight ratio of iodine/potassium iodide/water is 0.15/5/100 aqueous solution,, dye at 28 ℃ of dippings 47 seconds down.Then, in the aqueous solution that ZnG [changing into industry (strain) from Tokyo]/potassium iodide/boric acid/water is mixed according to 5/10/9.5/100 weight ratio, flooded 300 seconds down at 76 ℃, cleaned 2 seconds with 15 ℃ pure water again, then by under 50 ℃, carrying out drying, and make thus and be adsorbed in iodine on the polyvinyl alcohol (PVA) and orientation, adsorbed the polarization film of ZnG again.To the polarization film that obtains, estimate according to the method identical with embodiment 1, the results are shown in the table 1.
Comparative example 1
Except in the boric acid processing is bathed, not adding ZnG, carry out 2 identical operations with embodiment, make polarization film.To the polarization film that obtains, estimate according to the method identical with embodiment 1, the results are shown in the table 1.
[table 1]
| The embodiment sequence number | The uronic acid based compound | The amount of the left side compound in the boric acid aqueous solution *1 | Parallel tonea *????b * | Xeothermic long duration test resultQuadrature Δ b *Quadrature Δ E * |
| Embodiment 1 embodiment 2 | The gluconic acid ZnG | 5 weight portions, 5 weight portions | -1.15??3.88 -1.15??3.47 | ?0.24??????0.62 ?0.07??????0.41 |
| Comparative example 1 | - | - | -1.18??4.59 | ?2.10??????5.69 |
* 1Amount with respect to 100 weight parts waters
Iodine of the present invention is its excellent heat resistance of polarization film, is applicable to that mobile phone or vehicle mounted etc. might be exposed to the liquid crystal indicator in the high temperature.This polarization film is because parallel tone approaches Neutral colour, so also applicable to liquid crystal indicators such as TVs in addition.
Claims (7)
1. an iodine is polarization film, it is characterized in that, is made up of the polyvinyl alcohol resin film of absorption iodine and orientation, and also contains the uronic acid based compound that is selected from uronic acid and glycuronate in this polyvinyl alcohol resin film.
2. iodine as claimed in claim 1 is polarization film, it is characterized in that, the uronic acid based compound is a gluconic acid.
3. iodine as claimed in claim 1 is polarization film, it is characterized in that, the uronic acid based compound is a ZnG.
4. manufacture method that iodine is polarization film, it is characterized in that, the polyvinyl alcohol resin film is implemented the operation of unilateral stretching in process, the operation that in the aqueous solution that contains iodine and potassium iodide, this polyvinyl alcohol resin film is dyeed, in borated aqueous solution, this polyvinyl alcohol resin film after the dyeing is carried out the operation of dip treating, when making iodine and be polarization film, make the above-mentioned aqueous solution that contains iodine and potassium iodide with the operation of washing after the dip treating in borated aqueous solution, borated aqueous solution, contain the uronic acid based compound that is selected from uronic acid and glycuronate with dissolving at least a material in the water of washing usefulness.
5. method as claimed in claim 4 is characterized in that, contains the uronic acid based compound in the borated aqueous solution, in this aqueous solution the polyvinyl alcohol resin film behind the iodine staining is carried out dip treating.
6. as claim 4 or 5 described methods, it is characterized in that the uronic acid based compound is selected from gluconic acid and gluconate.
7. an iodine is polaroid, it is characterized in that, in claim 1-3 any one described iodine be polarization film single face or two-sided on the applying protective film form.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003424585 | 2003-12-22 | ||
| JP2003424585A JP4379111B2 (en) | 2003-12-22 | 2003-12-22 | Iodine polarizing film, method for producing the same, and polarizing plate using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1637443A true CN1637443A (en) | 2005-07-13 |
| CN100495085C CN100495085C (en) | 2009-06-03 |
Family
ID=34784736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200410100788XA Active CN100495085C (en) | 2003-12-22 | 2004-12-14 | Iodine polarizing thin film and producing method thereof and polarizing disk using the same |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4379111B2 (en) |
| KR (1) | KR101049593B1 (en) |
| CN (1) | CN100495085C (en) |
| TW (1) | TWI355514B (en) |
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|---|---|---|---|---|
| CN104737042A (en) * | 2012-10-26 | 2015-06-24 | 住友化学株式会社 | Method for manufacturing polarized laminated film and method for manufacturing polarizing plate |
| CN112946806A (en) * | 2019-12-11 | 2021-06-11 | 住友化学株式会社 | Polarizing plate and method for manufacturing same |
| CN114437385A (en) * | 2016-05-27 | 2022-05-06 | 三菱化学株式会社 | Polyvinyl alcohol film, method for producing same, and polarizing film using same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100958288B1 (en) | 2007-02-09 | 2010-05-19 | 주식회사 엘지화학 | Iodine-type polarizer, polarizing plate and method for producing thereof |
| JP4849564B2 (en) * | 2007-08-27 | 2012-01-11 | 住友化学株式会社 | Iodine polarizing film and method for producing polarizing plate |
| US20090163686A1 (en) * | 2007-12-20 | 2009-06-25 | 3M Innovative Properties Company | Method of making an intrinsic polarizer |
| JP5860449B2 (en) * | 2013-11-14 | 2016-02-16 | 日東電工株式会社 | Polarizing film and manufacturing method of polarizing film |
| JP6152127B2 (en) | 2015-02-16 | 2017-06-21 | 日東電工株式会社 | Polarizer, polarizing plate and image display device |
| CN104635292B (en) * | 2015-03-13 | 2017-06-16 | 京东方科技集团股份有限公司 | A kind of polarized light piece and preparation method thereof and display screen |
| JP6619619B2 (en) * | 2015-11-04 | 2019-12-11 | 日東電工株式会社 | Polarizer, polarizing plate, and method for producing polarizer |
| JP6620180B2 (en) * | 2017-04-07 | 2019-12-11 | 住友化学株式会社 | Polarizer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000035512A (en) | 1998-07-17 | 2000-02-02 | Sumitomo Chem Co Ltd | Polarizing film |
| JP2003262731A (en) | 2002-03-12 | 2003-09-19 | Sumitomo Chem Co Ltd | Iodine-based polarizing plate and method for manufacturing the same |
-
2003
- 2003-12-22 JP JP2003424585A patent/JP4379111B2/en not_active Expired - Fee Related
-
2004
- 2004-11-18 TW TW093135362A patent/TWI355514B/en active
- 2004-12-14 CN CNB200410100788XA patent/CN100495085C/en active Active
- 2004-12-17 KR KR1020040107745A patent/KR101049593B1/en active IP Right Grant
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104737042A (en) * | 2012-10-26 | 2015-06-24 | 住友化学株式会社 | Method for manufacturing polarized laminated film and method for manufacturing polarizing plate |
| CN114437385A (en) * | 2016-05-27 | 2022-05-06 | 三菱化学株式会社 | Polyvinyl alcohol film, method for producing same, and polarizing film using same |
| CN112946806A (en) * | 2019-12-11 | 2021-06-11 | 住友化学株式会社 | Polarizing plate and method for manufacturing same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100495085C (en) | 2009-06-03 |
| TW200532257A (en) | 2005-10-01 |
| KR101049593B1 (en) | 2011-07-14 |
| TWI355514B (en) | 2012-01-01 |
| KR20050063692A (en) | 2005-06-28 |
| JP4379111B2 (en) | 2009-12-09 |
| JP2005181818A (en) | 2005-07-07 |
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