CN107678083A - Method for producing polarizing film - Google Patents
Method for producing polarizing film Download PDFInfo
- Publication number
- CN107678083A CN107678083A CN201711064720.4A CN201711064720A CN107678083A CN 107678083 A CN107678083 A CN 107678083A CN 201711064720 A CN201711064720 A CN 201711064720A CN 107678083 A CN107678083 A CN 107678083A
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- China
- Prior art keywords
- polarizing film
- light polarizing
- reaction solution
- manufacture method
- solid acid
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 claims abstract description 53
- 239000011973 solid acid Substances 0.000 claims abstract description 38
- 238000004132 cross linking Methods 0.000 claims abstract description 34
- 150000001768 cations Chemical class 0.000 claims abstract description 7
- 238000005342 ion exchange Methods 0.000 claims abstract description 7
- 229910010272 inorganic material Inorganic materials 0.000 claims abstract description 4
- 239000011147 inorganic material Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 29
- 239000002253 acid Substances 0.000 claims description 21
- 230000000295 complement effect Effects 0.000 claims description 20
- 238000012545 processing Methods 0.000 claims description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 18
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 12
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 12
- 239000010457 zeolite Substances 0.000 claims description 9
- 229910021536 Zeolite Inorganic materials 0.000 claims description 8
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 8
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims 1
- 229910001414 potassium ion Inorganic materials 0.000 claims 1
- 239000002243 precursor Substances 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 53
- 150000002500 ions Chemical class 0.000 description 11
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 7
- 239000004327 boric acid Substances 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 6
- 238000010494 dissociation reaction Methods 0.000 description 5
- 230000005593 dissociations Effects 0.000 description 5
- RGHNJXZEOKUKBD-SQOUGZDYSA-N D-gluconic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 229910021645 metal ion Inorganic materials 0.000 description 4
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Substances [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 4
- 230000008961 swelling Effects 0.000 description 4
- UAYWVJHJZHQCIE-UHFFFAOYSA-L zinc iodide Chemical compound I[Zn]I UAYWVJHJZHQCIE-UHFFFAOYSA-L 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000010186 staining Methods 0.000 description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000174 gluconic acid Substances 0.000 description 2
- 235000012208 gluconic acid Nutrition 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 239000011630 iodine Substances 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 2
- 229920002689 polyvinyl acetate Polymers 0.000 description 2
- 239000011118 polyvinyl acetate Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- -1 sulfate radical Chemical class 0.000 description 2
- RPAJSBKBKSSMLJ-DFWYDOINSA-N (2s)-2-aminopentanedioic acid;hydrochloride Chemical compound Cl.OC(=O)[C@@H](N)CCC(O)=O RPAJSBKBKSSMLJ-DFWYDOINSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical class C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 0.000 description 1
- BAZVSMNPJJMILC-UHFFFAOYSA-N triadimenol Chemical compound C1=NC=NN1C(C(O)C(C)(C)C)OC1=CC=C(Cl)C=C1 BAZVSMNPJJMILC-UHFFFAOYSA-N 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/12—Chemical modification
- C08J7/14—Chemical modification with acids, their salts or anhydrides
-
- 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
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L29/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
- C08L29/02—Homopolymers or copolymers of unsaturated alcohols
- C08L29/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Polarising Elements (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
A method for producing a polarizing film includes the following steps. A polarizing film precursor is subjected to a cross-linking treatment and/or a color-complementing treatment in a reaction solution to form a polarizing film. A solid acid is used to perform an ion exchange reaction with a cation of the reaction solution. The solid acid includes an inorganic material.
Description
Technical field
The present invention relates to a kind of manufacture method of light polarizing film, and more particularly to a kind of crosslinking groove pH value of stable light polarizing film
Method.
Background technology
Polarizer is the optical element for being widely used in liquid crystal display.Polarizer is usually in polyvinyl alcohol
Triafol T (triacetate cellulose, TAC) or ring are binded in (polyvinyl alcohol, PVA) light polarizing film
The diaphragms such as olefin polymer (cyclo-olefin polymer, COP) and obtain.Now, the application of liquid crystal display is increasingly
Extensively, for example, mobile phone, wearable device etc., requirement to Polarizer quality also more and more higher.
Light polarizing film is the most important element of Polarizer, and light polarizing film is usually in the dichroism of polyvinyl alcohol film absorption orientation
Pigment and formed, for example, being used as the iodine polarizing film of dichroism pigment using iodine.
The content of the invention
It is an object of the invention to provide a kind of manufacture method of light polarizing film.
According to an aspect of the invention, it is proposed that a kind of manufacture method of light polarizing film, comprises the following steps.Before making a light polarizing film
Drive thing and a crosslinking Treatment and/or complementary color processing are carried out in a reaction solution, to form a light polarizing film.With a solid acid and instead
A cation of solution is answered to carry out ion-exchange reactions.Solid acid includes inorganic material.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Brief description of the drawings
Fig. 1 illustrates the process equipment schematic diagram of the light polarizing film according to an embodiment concept；
Fig. 2 illustrates the process equipment schematic diagram of the light polarizing film according to another embodiment concept.
Wherein, reference
102：Light polarizing film predecessor
104：Conveyer
106：It is crosslinked groove
108：Reaction solution
110：Light polarizing film
111：Solid acid
112：Activated carbon
114、221、223：Filter
116、118：Passage
119、219：The circulatory system
Embodiment
Embodiments of the invention are described in detail below in conjunction with appended accompanying drawing, it is noted that it is illustrated below not according to than
Example is drawn, in fact, the size of element may arbitrarily be zoomed in or out clearly to show the feature of the present invention, and is being said
In bright book and figure, same or like element will be represented with similar symbol.
The many different implementations of following discloses or example carry out the different characteristic of the present invention, and below description is specific
Element and its arrangement example to illustrate the present invention.Certainly these are only examples and should not limit the scope of the present invention with this.
In addition, may use the label repeated or sign in different embodiments, these repeat originally to take off only for simply clearly describing
Dew, not representing between the different embodiments and/or structure discussed has specific relation.
Furthermore, it should be understood that before method progress, central or may have extra operating procedure afterwards, and institute
The certain operations step stated may be substituted or delete in the method for other embodiments.
Need to be reacted with substantial amounts of chemical solution in the forming step of light polarizing film, and the pH value of reaction solution need to control
In appropriate scope.In general, additional acid solution is understood in reactive tank, with the pH value of maintenance reaction solution.It is however, additional
Acid solution dissociation caused by ion (for example, metal ion, nonmetallic ion) will accumulate in reactive tank so that reaction
Specific ion concentration continues to increase in solution, the quality of light polarizing film made of possible and then influence.
To solve the above problems, the manufacture method of light polarizing film provided by the invention, at the crosslinking Treatment, complementary color in light polarizing film
In reason and extension processing, by the addition using solid acid substitution acid solution.Therefore can avoid caused by acid solution dissociation
Specific ion (for example, metal ion, nonmetallic ion) is largely accumulated in reaction solution, and then light polarizing film made of infringement
Quality.
The formation of light polarizing film generally has steps of：Swelling process, dyeing processing, stretch processing, crosslinking Treatment, clean
Processing and drying process.The processing equipment that light polarizing film forms system may include a swelling groove, a staining trough, a crosslinking groove, one
Complementary color groove, an ablution groove and a drying oven.All processing equipments in system all optionally increase, reduced, repeating to match somebody with somebody
Put or carry out other adjustment.For example, in a kind of system, it may include multiple staining troughs.In a kind of system, it may include
Multiple crosslinking grooves.In a kind of system, complementary color groove can be also omitted.
During Fig. 1 is shown according to some embodiments of the invention, the process equipment schematic diagram of light polarizing film.As shown in figure 1, light polarizing film
Predecessor 102, by the reaction solution 108 being crosslinked in groove 106, thereby carries out crosslinking Treatment to obtain partially by conveyer 104
Light film 110.Conveyer 104 includes but is not limited to roller.In one embodiment, also can simultaneously comprising at least one crosslinking groove with extremely
A few complementary color groove, without being limited with Fig. 1.
Light polarizing film predecessor 102 can be polyvinyl alcohol (polyvinyl alcohol, PVA) film.Polyvinyl alcohol can be by
Saponifying polyvinyl acetate and formed.In certain embodiments, polyvinyl acetate can be the single polymers or second of vinyl acetate
Copolymer of vinyl acetate and other monomers etc..Above-mentioned other monomers can be unsaturated carboxylic acid class, olefines, unsaturated sulfonic acid class
Or vinyl ethers etc..In further embodiments, polyvinyl alcohol can be modified polyvinyl alcohol, for example, being modified through aldehydes
Polyvinyl formal (polyvinylformal), polyvinyl alcohol contracting acetic acid or polyvinyl butyral resin
(Polyvinylbutyral) etc..
Crosslinking Treatment is to carry out resistance to hydration process to light polarizing film predecessor 102 or adjust its tone.In some embodiments
In, the reaction solution 108 being crosslinked in groove 106 can include boric acid, KI, zinc iodide or combinations of the above.Boric acid is crosslinking agent,
KI and zinc iodide are then used for pH effect, can adjust light polarizing film (110 form and aspect by its concentration is changed.
In certain embodiments, the reaction solution 108 of crosslinking Treatment can be comprising 1 parts by weight to the boric acid of 10 parts by weight and
1 parts by weight to the KI of 30 parts by weight the aqueous solution.In certain embodiments, the temperature of crosslinking Treatment can be 10 DEG C to 70 DEG C
Or 50 DEG C to 65 DEG C, and the time of crosslinking Treatment can be 1 second to 600 seconds or 20 seconds to 300 seconds.
Furthermore when carrying out crosslinking Treatment, also extension processing can be carried out to light polarizing film predecessor 102 simultaneously.In some implementations
In example, extension processing can be by the transfer rate for making to be arranged between the entrance of crosslinking groove 106 and the conveyer 104 in exit
Difference produces, such as is carried out using the method for roller week speed difference.
In addition, in certain embodiments, crosslinking Treatment can be in 5 times progress of pH 2 to pH.In the prior art, except handing over
Outside the boric acid that connection processing uses, it will usually extra acid solution is added in being crosslinked in groove 106, to maintain the reaction of crosslinking Treatment
The pH value of solution 108 is in suitable scope.However, ion caused by additional acid solution dissociation (for example, metal ion,
Nonmetallic ion) it will accumulate in crosslinking groove 106 so that specific ion concentration continues to increase in reaction solution 108, may
And then the quality of light polarizing film 110 made of influenceing.
In comparison, the present invention uses solid acid 111, at least partly substitutes the addition of acid solution.Specifically, with solid
The cation of body acid 111 and the reaction solution 108 of crosslinking Treatment carries out ion-exchange reactions, that is, it will be handed over by solid acid 111
It is hydrogen ion that the reaction solution 108 of connection processing, which dissociates caused cation replacement, to provide the acid source for being crosslinked groove 106, but
The ion for the quality that light polarizing film 110 may be influenceed as caused by additional acid solution dissociation will not be produced.
In certain embodiments, using solid acid 111 by potassium caused by the KI in the reaction solution 108 of crosslinking Treatment
Ion exchange is hydrogen ion.
In certain embodiments, the addition of acid solution can be fully substituted with solid acid 111, i.e. except crosslinking Treatment
Beyond the boric acid used, the reaction solution 108 substantially (substantially) being crosslinked in groove 106 does not include additional acidity
Solution, for example, not including sulfate radical, acetate or glucose acid group in sulfuric acid, acetic acid or gluconic acid, i.e. reaction solution 108
Deng anion.In further embodiments, the addition of acid solution can be partly substituted with solid acid 111, i.e. crosslinking groove 106
In reaction solution 108 can still include a small amount of additional acid solution, for example, sulfuric acid, acetic acid or gluconic acid.
Using solid acid 111 the variable quantity of the pH value of reaction solution 108 can reach and stablize level, such as reaction solution 108
PH value excursion (Δ pH) absolute value system be less than 1, that is, -1 ＜ Δ pH ＜ 1.Reaction solution 108, which can be stablized, to be at crosslinking
PH value range needed for reason, therefore the light polarizing film 110 of desired optical property can be obtained.
In some embodiments, in after being crosslinked groove, light polarizing film predecessor 102 then guides via conveyer 104
To complementary color groove (not shown), to carry out a complementary color processing for light polarizing film predecessor 102.Complementary color processing further adjusts polarisation
Membrane precursor thing 102, to reach the form and aspect needed for light polarizing film 110.Tank liquor in complementary color groove can have class with the tank liquor in crosslinking groove 106
Formed like even identical.In some embodiments, the temperature of complementary color processing is 10 DEG C~70 DEG C, and the time of complementary color processing is then
For 1 second~15 minutes.In the present embodiment, solid acid 111 can be also used among complementary color groove, to reach the work(of adjustment pH value
Effect, its mechanism is identical with previous embodiment, repeats no more.
Fig. 1 is refer to, in some embodiments, the reaction solution 108 containing boric acid was carried out using activated carbon 112
Filter.For example, it is crosslinked the circulatory system 119 of groove 106 and/or the connection of complementary color groove in outside.The circulatory system 119 may include passage
116th, filter 114 and passage 118.Reaction solution 108 containing boric acid can enter in filter 114 via passage 116
Activated carbon 112 filtered, then via passage 118 return to crosslinking groove 106 and/or complementary color groove in recycle.
During Fig. 2 is shown according to some embodiments of the invention, the process equipment schematic diagram of light polarizing film.Fig. 2 and Fig. 1 technique is set
Difference between standby is, is crosslinked the circulatory system 219 in groove 106 and/or complementary color groove connection outside.The circulatory system 219 may include
Filter 221 and filter 223.In one embodiment, solid acid 111 (not being shown in the 2nd figure) is arranged on filter
In 221, and activated carbon 112 (not being shown in the 2nd figure) is arranged in filter 223.In another embodiment, activated carbon 112
It is arranged in filter 221, and solid acid 111 is arranged in filter 223.
In a comparative example, not using solid acid 111, but find the reaction solution 108 that was contacted with activated carbon 112 its
PH value can raise rapidly, and change amplitude is big, is well over the pH value range needed for crosslinking Treatment, therefore the ring of reaction solution 108
Border is simultaneously unstable, and is unfavorable for cross-linking reaction and influences the optical property of light polarizing film 110.
In comparison, the present invention uses solid acid 111 so that even if after reaction solution 108 contacts with activated carbon 112,
The variable quantity of its pH value, which remains to reach, stablizes level, such as pH value excursion (Δ pH) absolute value of reaction solution 108 is less than 1,
That is, -1 ＜ Δ pH ＜ 1.Reaction solution 108 can stablize the pH value range being in needed for crosslinking Treatment, therefore can obtain desired
The light polarizing film 110 of optical property.
The acidity (providing replaceable hydrionic ability or quantity) of solid acid 111 can measure in NH3-TPD methods
Represent, wherein making the adsorption alkali molecules of solid acid 111, after desorption falls the molecule of physical absorption, quantify chemisorbed
Molecule, you can its acid strength of the surface of solid acid 111 and acid amount.In one embodiment, the NH3-TPD of solid acid 111 is acid
Intensity level is 0.1~2.
The specific surface area of solid acid 111 is higher to provide the bigger contact area with reaction solution 108, can improve reaction
Property.For example, for the solid acid 111 of identical weight, particle size is smaller, and pore-size is smaller and quantity is bigger
When, it will can improve the specific surface area of solid acid 111.In one embodiment, solid acid 111 can have porous particle structure, and particle diameter
Between 0.1um~100um.
In embodiment, solid acid 111 includes inorganic material, such as zeolite etc..Zeolite is by Si oxide or alumina
The tetrahedron that thing is formed, the skeleton by oxygen atom link silicon or aluminium as middle different anchor rings, and the difference of middle anchor ring, can
Such as it is divided into A types, X-type and Y crystal structure, wherein its anchor ring of the crystal structure of Y types is 12 side shapes.The hydrogen ion of zeolite surface
It can be replaced with the cation in reaction solution 108.The height of silica alumina ratio can influence the characteristic of zeolite, and silica alumina ratio is low to be increased
Ion-exchange capacity and zeolite acidity.Table 1 arranges the property for showing some zeolites.
Table 1
In embodiment, (that is, the weight of solid acid 111 divided by reaction are molten to the weight ratio of reaction solution 108 for solid acid 111
The weight of liquid 108) it is 0.01~0.5.
The tension force of light polarizing film 110 is in 70N to 85N stability range.
In some embodiments, light polarizing film predecessor 102 is by before being crosslinked groove 106, can first carry out other processing.Citing
For, it can first pass through to carry out the swelling groove of swelling process and then by using dye the staining trough of processing, then lead to
Cross crosslinking groove 106 described with reference to Figure 1.In some embodiments, by being crosslinked the polarisation formed after groove 106 and/or complementary color groove
Film 110 can carry out other processing again.For example, by light polarizing film 110 by rinsing bowl to will be attached to the surface of light polarizing film 110
Reaction solution 108 clean, then give drying by drying oven.But this exposure is not limited to this.
The row of table 2 show embodiment 1 to embodiment 5, experiment condition and result with comparative example 1.Δ pH passes through for reaction solution
PH value when pH value after special time cuts initial, therefore pH value rises after special time on the occasion of expression reaction solution,
Negative value represents that pH value declines, and the higher expression change amplitude of Δ pH absolute value is bigger.
It can find compared with the comparative example 1 of unused zeolite, there is embodiment 1 using zeolite to implementation according to the result of table 2
Its reaction solution of example 5 has less pH value intensity of variation, represents that pH value is relatively stable, and the tension value of obtained light polarizing film is adjustable
Control in stability range, disconnected paper risk can be reduced, and light polarizing film optical property is stable.
Table 2
In summary, the manufacture method of light polarizing film provided by the invention, handled in the crosslinking Treatment and/or complementary color of light polarizing film
In, by the addition using solid acid substitution acid solution, to maintain crosslinking Treatment and/or complementary color to handle the pH value of reaction solution
In suitable scope.Thereby, specific ion caused by additional acid solution dissociation can be avoided (for example, metal ion, non-gold
Category ion) largely accumulated in reaction solution, and then the quality of light polarizing film made of may damaging.In addition, use solid acid energy
Even if after making reaction solution and activated carbon contacts, the variable quantity of its pH value is remained to up to stablizing level.Therefore the present invention can obtain
Stablize the light polarizing film of desired optical property.
Certainly, the present invention can also have other various embodiments, ripe in the case of without departing substantially from spirit of the invention and its essence
Know those skilled in the art when can be made according to the present invention it is various it is corresponding change and deformation, but these corresponding change and become
Shape should all belong to the protection domain of appended claims of the invention.
Claims (10)
- A kind of 1. manufacture method of light polarizing film, it is characterised in that including：A light polarizing film predecessor is set to carry out a crosslinking Treatment and/or complementary color processing in a reaction solution, to form a polarisation Film；AndIon-exchange reactions is carried out with a cation of a solid acid and the reaction solution, the wherein solid acid includes inorganic material Material.
- 2. the manufacture method of light polarizing film according to claim 1, it is characterised in that the solid acid includes zeolite.
- 3. the manufacture method of light polarizing film according to claim 1, it is characterised in that the cation of the reaction solution is with being somebody's turn to do One hydrogen ion of solid acid carries out ion-exchange reactions.
- 4. the manufacture method of light polarizing film according to claim 1, it is characterised in that weight of the solid acid to the reaction solution Amount is than being 0.01~0.5.
- 5. the manufacture method of light polarizing film according to claim 1, it is characterised in that the solid acid has porous particle knot Structure, and particle diameter is between 0.1um~100um, and/or the NH3-TPD acid intensity values of the solid acid are 0.1~2；And/or this is solid Body acid is a Si oxide or the tetrahedron of aluminum oxide.
- 6. the manufacture method of light polarizing film according to claim 1, it is characterised in that further include anti-to this using an activated carbon Solution is answered to be filtered.
- 7. the manufacture method of light polarizing film according to claim 1, it is characterised in that the pH value excursion of the reaction solution (Δ pH) absolute value is less than 1.
- 8. the manufacture method of light polarizing film according to claim 1, it is characterised in that the reaction solution includes monoiod(in)ate potassium, The solid acid is that the potassium ion of the KI is replaced into hydrogen ion.
- 9. the manufacture method of light polarizing film according to claim 1, it is characterised in that at the crosslinking Treatment and/or the complementary color Reason is in 5 times progress of pH 2 to pH.
- 10. the manufacture method of light polarizing film according to claim 1, it is characterised in that when the crosslinking Treatment is carried out, also include One extension processing is carried out to the light polarizing film predecessor, the light polarizing film predecessor is a polyvinyl alcohol film.
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| TW106131450 | 2017-09-13 | ||
| TW106131450A TWI668255B (en) | 2017-09-13 | 2017-09-13 | Manufacturing method for polarizer |
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| KR (1) | KR20200068011A (en) |
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| CN113253375A (en) * | 2020-02-07 | 2021-08-13 | 住友化学株式会社 | Method for producing polarizing film |
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| CN1853121A (en) * | 2003-09-19 | 2006-10-25 | 日本化药株式会社 | Polarizing film, polarizing plate and liquid crystal display device |
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| JP4919403B2 (en) * | 2006-09-14 | 2012-04-18 | 日本化薬株式会社 | High durability polarizing plate |
| JP2008292935A (en) * | 2007-05-28 | 2008-12-04 | Nitto Denko Corp | Method for manufacturing polarizing film |
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| CN113253375A (en) * | 2020-02-07 | 2021-08-13 | 住友化学株式会社 | Method for producing polarizing film |
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| TWI668255B (en) | 2019-08-11 |
| TW201915057A (en) | 2019-04-16 |
| JP2019053293A (en) | 2019-04-04 |
| KR20200068011A (en) | 2020-06-15 |
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