WO2010007728A1 - 制電性アクリル繊維およびその製造方法 - Google Patents
制電性アクリル繊維およびその製造方法 Download PDFInfo
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- WO2010007728A1 WO2010007728A1 PCT/JP2009/002798 JP2009002798W WO2010007728A1 WO 2010007728 A1 WO2010007728 A1 WO 2010007728A1 JP 2009002798 W JP2009002798 W JP 2009002798W WO 2010007728 A1 WO2010007728 A1 WO 2010007728A1
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- Prior art keywords
- antistatic
- fiber
- weight
- acrylic
- alkali metal
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Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/70—Material containing nitrile groups
- D06P3/76—Material containing nitrile groups using basic dyes
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/09—Addition of substances to the spinning solution or to the melt for making electroconductive or anti-static filaments
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/18—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/38—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising unsaturated nitriles as the major constituent
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/41—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using basic dyes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/653—Nitrogen-free carboxylic acids or their salts
- D06P1/6533—Aliphatic, araliphatic or cycloaliphatic
Definitions
- the present invention relates to an antistatic acrylic fiber excellent in workability and durability that can be used for various uses such as clothing, bedding, and interior, and a method for producing the same.
- Acrylic fibers have excellent properties such as heat retention, shape stability, light resistance, texture, and dyeability. They are widely used in clothing and interior applications due to their excellent physical properties and easy care properties that are not found in natural fibers. Yes. However, such acrylic fibers are not without problems, and because they have poor hygroscopicity, static electricity is likely to be generated by friction, and dust is likely to adhere to clothes due to electrostatic force. It has issues such as giving pleasure. Various attempts have been made to solve such problems. The most commonly used method is to apply an anti-static oil to the fiber surface. This method shows excellent antistatic performance at the beginning, but it is extremely antistatic by dyeing, repeated bleaching, washing, etc. Usually decreased.
- Patent Document 1 proposes a method of spinning an acrylonitrile copolymer obtained by copolymerizing a vinyl monomer having a glycoxyl group.
- this method it is essential to copolymerize a specific heterogeneous monomer with the acrylonitrile copolymer, so the complexity of the polymerization operation is unavoidable, and a monomer with strong hydrophilic properties is copolymerized. Therefore, such a copolymer is likely to be eluted in the spinning process, particularly from the coagulation to the water washing process, and the contamination of the solvent to be recovered and reused becomes significant.
- Patent Document 2 proposes a method of mixing and spinning an acrylonitrile copolymer organic solvent solution in which carbon black is dispersed and mixed with an acrylonitrile copolymer spinning stock solution.
- the fiber obtained by such a method is black or gray because carbon is used, and the range of use is significantly restricted for clothing and interior use.
- Patent Document 3 proposes a method for producing conductive acrylic fibers by a core-sheath compound spinning method using a conductive material having a conductivity of 10 ⁇ 3 S / cm or more.
- Patent Document 4 proposes a method of spinning by mixing an acrylonitrile copolymer and an acrylonitrile antistatic polymer, adding an alkali metal salt and water, dissolving the mixture in an organic solvent to obtain a spinning dope.
- the knitted fabric made of fibers produced by such a method has a long half-life and is insufficient as an antistatic fiber.
- the alkali metal ions are ion-bonded to the dyeing seat, and there is a problem that the alkali metal ions are easily dropped in the spinning / washing process or the dyeing process.
- An object of the present invention is to solve the above-mentioned problems of the prior art, have antistatic properties, and antistatic acrylic fibers that are excellent in antistatic properties, and whose antistatic properties do not deteriorate much even after spinning and dyeing processes, and such antistatic acrylics It is providing the fiber structure which contains a fiber in at least one part. Moreover, the objective of this invention is providing the manufacturing method of this antistatic acrylic fiber which does not have the complexity on a production process, maintaining high productivity.
- the present invention relates to an acrylic antistatic resin 10 containing 90 to 99% by weight of acrylonitrile-based polymer containing 80 to 100% by weight of acrylonitrile as a component and 10 to 70% by weight of acrylonitrile as a component.
- Antistatic acrylic fiber comprising ⁇ 1% by weight, characterized in that alkali metal ions are contained in an amount of 150 ppm or more based on the fiber.
- the volume resistivity value is 10 3 to 10 6 ⁇ ⁇ cm.
- the acrylic antistatic resin is an acrylic polymer containing 90 to 30% by weight of a copolymer component represented by the following formula [I], and the alkali metal ion is a lithium ion.
- R is a hydrogen atom or an alkyl group having 1 to 5 carbon atoms
- R ′ is a hydrogen atom or an alkyl group having 1 to 18 carbon atoms, a phenyl group or a derivative thereof, and 15 ⁇ l ⁇ 50, 0 ⁇ m ⁇ L.
- the alkali metal ion retention rate of the fiber after dyeing with a cationic dye with respect to the fiber before dyeing is 40% or more.
- the alkali metal ion content after dyeing with a cationic dye is 80 ppm or more based on the fiber.
- the present invention also provides an antistatic fiber structure characterized in that the antistatic acrylic fiber is contained at least in part.
- the half-life of the frictional band voltage after dyeing with a cationic dye is 3 seconds or less, and the frictional band voltage is 2 kV or less.
- the present invention also relates to an acrylic antistatic resin 10 containing 90 to 99% by weight of an acrylonitrile polymer containing 80 to 100% by weight of acrylonitrile as a constituent and 10 to 70% by weight of acrylonitrile as a constituent.
- An antistatic acrylic characterized in that a spinning stock solution containing a polymer mixture of ⁇ 1% by weight is subjected to wet spinning, and the resulting fiber is washed with water, drawn, treated with an aqueous alkali metal salt solution, and then densified. It is a manufacturing method of a fiber.
- the preferable aspect of the manufacturing method of the antistatic acrylic fiber of this invention is as follows.
- the moisture content of the undried fiber after washing and drawing is 50 to 130% by weight, and heating at a temperature of 100 to 130 ° C. between the washing and drawing treatment and the treatment with the aqueous alkali metal salt solution. Processing is performed.
- the densification process is performed under tension.
- the densification treatment is performed in a wet state.
- an antistatic acrylic fiber having excellent antistatic properties and durability can be provided by a simple and efficient method.
- a fiber structure having excellent antistatic properties can be provided.
- the acrylonitrile-based polymer used in the present invention may be any polymer that is conventionally used for the production of acrylic fibers, but contains 80 to 100% by weight, preferably 88 to 100% by weight, of acrylonitrile as a constituent component. is required. If the content of acrylonitrile is less than the above range, it may be difficult to introduce alkali metal ions into the fiber described later.
- the usable component other than acrylonitrile may be a vinyl compound.
- Typical examples include acrylic acid, methacrylic acid, or esters thereof; acrylamide, methacrylamide, or these.
- examples thereof include unsaturated sulfonic acids such as acids or salts thereof.
- the resin constituting the antistatic acrylic fiber of the present invention preferably contains an anionic group such as a sulfonic acid group or a carboxylic acid group. It is because it is preferable that it can be dyed with a cationic dye like many acrylic fibers.
- an anionic group such as a sulfonic acid group or a carboxylic acid group. It is because it is preferable that it can be dyed with a cationic dye like many acrylic fibers.
- acrylonitrile and a monomer containing an anionic group that is, an anionic group-containing monomer
- An example is a method in which an anionic group such as a sulfonic acid group is introduced at the end of a polymer using a redox catalyst used in the process, in particular, an acidic sulfite as a reducing agent.
- the acrylic antistatic resin used in the present invention is an organic polymer compound containing a large amount of ether oxygen such as a polyalkylene oxide chain, a polyether amide chain, and a polyether ester chain.
- the acrylic antistatic resin should contain 10 to 70% by weight, more preferably 15 to 50% by weight, and still more preferably 15 to 30% by weight, of acrylonitrile as a constituent component.
- the content of acrylonitrile is less than the above range, the compatibility with the acrylonitrile polymer is deteriorated, which causes a decrease in the mechanical properties of the fiber due to phase separation.
- the alkali metal ion contained in the fiber of the present invention is held inside the fiber by coordination bond with ether oxygen in the resin and exhibits antistatic properties, so the content of acrylonitrile exceeds the above range.
- the alkali metal ions are not sufficiently retained and are eluted from the inside of the fiber, and there is a possibility that sufficient antistatic properties cannot be obtained.
- the acrylic antistatic resin contains a large amount of ether oxygen, such as a method of copolymerizing a vinyl monomer having ether oxygen incorporated on the side chain with acrylonitrile, or a vinyl monomer having a reactive functional group.
- ether oxygen such as a method of copolymerizing a vinyl monomer having ether oxygen incorporated on the side chain with acrylonitrile, or a vinyl monomer having a reactive functional group.
- examples include a method in which a polymer is copolymerized with acrylonitrile and then a reactive compound containing ether oxygen is grafted.
- the vinyl monomer to be copolymerized with acrylonitrile is preferably 30 to 90% by weight, preferably 50 to 85% by weight, more preferably 70% by weight of the monomer represented by the above formula [I]. It is desirable to use ⁇ 85% by weight.
- vinyl compounds may be copolymerized in addition to the above vinyl monomer.
- Preferable examples of the vinyl monomer in which the ether oxygen is incorporated on the side chain include a reaction product of 2-methacryloyloxyethyl isocyanate and polyethylene glycol monomethyl ether, which is a simple compound represented by the formula [I].
- Preferred examples of the monomer include methoxypolyethylene glycol (30 mol) methacrylate, methoxypolyethylene glycol (30 mol) acrylate, polyethylene glycol-2,4,6-tris-1-phenylethylphenyl ether methacrylate (number average) Molecular weight of about 1600).
- preferable examples of the vinyl monomer having a reactive functional group of the latter method include 2-hydroxyethyl methacrylate, acrylic acid, methacrylic acid, N-hydroxymethylacrylamide, N, N-dimethylaminoethyl.
- examples include methacrylate, glycidyl methacrylate, 2-methacryloyloxyethyl isocyanate, and suitable examples of the reactive compound containing ether oxygen include polyethylene glycol monomethyl ether and polyethylene glycol monomethacrylate.
- Such an acrylic antistatic resin has a water swelling degree of 10 to 300 g / g, preferably 20 to 150 g / g, and is insoluble in water and the solvent of acrylonitrile polymer, but is slightly dispersed in the solvent. It is desirable for achieving the object of the present invention to have such physical properties.
- Various methods can be used to adjust the degree of water swelling. As described above, the method of copolymerizing a crosslinkable monomer, the numerical value of l or m of the monomer represented by the formula [I], and the like. Examples of such a method are changing.
- the method for synthesizing the acrylonitrile-based polymer is not particularly limited, and a suspension polymerization method, an emulsion polymerization method, a solution polymerization method and the like, which are well-known polymerization means, can be used.
- a similar polymerization method can be used as a method for synthesizing the acrylic antistatic resin.
- a graft reaction can also be used to introduce ether oxygen.
- the proportion of the acrylonitrile polymer and the acrylic antistatic resin in the antistatic acrylic fiber of the present invention is 90 to 99% by weight of the acrylonitrile polymer and 10 to 1% by weight of the acrylic antistatic resin. It is necessary to. If it is out of this range, production problems such as nozzle clogging and yarn breakage during spinning may occur.
- the antistatic acrylic fiber of the present invention it is necessary that alkali metal ions remain in the fiber at 150 ppm or more, preferably 180 ppm or more, more preferably 200 ppm or more in order to exhibit sufficient antistatic properties. . Moreover, when there are too many alkali metal ions, since the amount which reacts with a dyeing seat increases and there exists a possibility of causing a dyeable fall, it is preferable that it is 500 ppm or less.
- the volume resistivity of the antistatic acrylic fiber of the present invention is preferably 10 3 to 10 6 ⁇ ⁇ cm. Within such a range, sufficient antistatic performance can be exhibited.
- the antistatic acrylic fiber of the present invention has an alkali ion metal ion retention rate of 40% or more with respect to the fiber before dyeing of the fiber after dyeing with a cationic dye in order to exhibit sufficient antistatic property. Is preferable, more preferably 50% or more, still more preferably 55% or more.
- the absolute amount of alkali metal ions after dyeing is preferably 80 ppm or more, more preferably 100 ppm or more, and further preferably 150 ppm or more with respect to the fiber.
- the alkali metal ions used in the present invention Li, Na and K are preferable, and lithium ions having a small ion radius are particularly preferable.
- the alkali metal salt may be any one having high dissociation property with water, and is preferably a perchlorate, a carbonate, or a peroxide, and particularly preferably a perchlorate.
- the antistatic acrylic fiber of the present invention needs to contain alkali metal ions in the fiber, and it is preferable that as many alkali metal ions as possible are localized in the acrylic antistatic resin. Furthermore, it is desirable to reduce the voids present in the fiber as much as possible after containing the alkali metal ion so that the alkali metal ion does not fall out of the fiber.
- the production method of the present invention comprises a spinning solution containing a polymer mixture composed of the acrylonitrile-based polymer and the acrylic antistatic resin described above, wet-spun by a normal method, washed with water, stretched, The fiber before the formation is treated with an aqueous alkali metal salt solution and then densified.
- the fibers before densification have voids in the fibers, and alkali metal ions can be localized in the acrylic antistatic resin in the fibers through the voids. Then, by densification, the falling of alkali metal ions in the fiber, especially the alkali metal ions localized in the acrylic antistatic resin, is suppressed, and the durability in dyeing and washing is improved. Performance is obtained.
- Densification referred to in the present invention is different from these treatments. It means dry densification with dry heat higher than the temperature of the wet heat treatment, or wet densification with steam or hot water.
- a drier such as a hot air drier or a roller drier, a pressure vessel such as an autoclave or an overmeier dyeing machine, or the like can be used.
- the treatment method with an alkali metal salt aqueous solution is not particularly limited.
- the treatment is carried out by dipping into a treatment tank to which a target amount of an alkali metal salt to be contained in a fiber is added, and a press roller.
- a method of squeezing to a certain level a method of applying an alkali metal salt aqueous solution by spraying, or a method of treating by an immersion method using an Overmeier dyeing machine or the like.
- the treatment with the alkali metal salt aqueous solution may be performed before the densification, and may be performed on the fibers in a so-called gel swelling state after stretching, or on the fibers after the primary densification or after the wet heat treatment.
- a prescription example using a crimper preheating tank or the like for fibers after primary densification is as follows. That is, a treatment liquid to which a target amount for adsorbing an alkali metal salt on tow or filament is added to a crimper preheating tank, and the tow or filament is dipped in the treatment liquid, and then fixed using a crimper or the like. By squeezing, the target amount of alkali metal ions is contained in the tow or filament, and then the alkali metal ions are sequestered by wet heat treatment and densification treatment.
- the example of prescription using an over Meyer dyeing machine for the fiber after the wet heat treatment is as follows. That is, a treatment liquid added with a target amount for adsorbing an alkali metal salt to the tow or filament is put into a dyeing machine and treated by immersing the tow or filament in the treatment liquid. Then, the alkali metal ions are sequestered by raising the temperature of the treatment liquid and performing wet densification treatment in the high temperature treatment liquid. Then, if necessary, a spinning oil is applied and dried with a hot air dryer or the like.
- the example of prescription using an oil agent processing tank with respect to the fiber after wet heat treatment is as follows. That is, a processing liquid to which an alkali metal salt is adsorbed to the tow or filament is added to the oil treatment tank, the tow or filament is dipped in the processing liquid, and is squeezed to a certain level using a nip roller or the like. Thus, a target amount of alkali metal ions is contained in the tow or filament, a spinning oil agent is applied if necessary, and then the alkali metal ions are sequestered by dry densification treatment.
- an antistatic fiber having excellent dyeing durability can be obtained.
- the fiber treated with the aqueous metal salt solution has hydrophilic microvoids, and each microvoid is connected inside the fiber and has a structure communicating with the surface.
- the alkali metal salt aqueous solution can be efficiently penetrated into the inside of the fiber using the capillary phenomenon.
- densification is performed to seal off such microvoids.
- the microvoids are easily crushed in a wet state, wet densification is also an effective means.
- an inorganic salt such as sodium rhodanate is used as a solvent
- a spinning stock solution is prepared by adding and mixing the acrylic antistatic resin directly or as an aqueous dispersion, and after spinning from the nozzle, after passing through the steps of coagulation, water washing, and stretching.
- the moisture content of the undried fiber after stretching is 50 to 130% by weight, preferably 60 to 120% by weight.
- wet heat treatment is performed at a temperature of 100 ° C. to 130 ° C., preferably 105 ° C. to 115 ° C.
- the coagulation bath temperature is set to about 0 ° C. to 15 ° C., and the draw ratio is set to about 7 to 15 times. It is desirable.
- the wet heat treatment if the temperature is lower than the above range, a thermally stable fiber cannot be obtained. If the temperature exceeds the above range, the alkali metal ions described later are sufficiently permeated in a short time treatment. There may be a shortage of microvoids.
- the wet heat treatment means a treatment in which heating is performed in an atmosphere of saturated steam or superheated steam.
- the tow or filament thus obtained is treated with an aqueous alkali metal salt solution to contain alkali metal ions.
- the method is not particularly limited, and the above-described method and the like can be used.
- the conditions for the densification treatment may be higher than the temperature of the primary densification or wet heat treatment.
- the heat treatment is desirably performed at 110 ° C. to 210 ° C., more preferably 120 to 210 ° C. . More preferably, the treatment is performed using a roller dryer or the like under tension or in a wet state.
- the heat treatment is performed at 110 ° C. or higher, the microvoids existing in the fiber are blocked, and alkali metal ions are enclosed in the fiber, thereby improving the durability against dropping.
- a porous material there is a problem that static electricity is likely to occur and is difficult to handle during processing.
- by closing the microvoids the surface becomes smooth and static electricity is unlikely to occur and the antistatic fiber is easy to handle during processing.
- the spinning oil is not particularly limited as long as it is a spinning oil for acrylic fibers.
- additives such as flame retardants, light proofing agents, ultraviolet absorbers and pigments can be used.
- the antistatic acrylic fiber of the present invention thus obtained contains 150 ppm or more of metal ions, has an alkali metal ion retention of 40% or more with respect to the fiber before dyeing of the fiber dyed with a cationic dye, Moreover, the alkali metal ion content after dyeing with a cationic dye is 80 ppm or more. Therefore, the antistatic performance of the fiber of the present invention hardly deteriorates even by repeated washing as a final product, and can be called a permanent antistatic acrylic fiber.
- the present invention is a fiber structure including at least a part of such antistatic acrylic fiber.
- the fiber structure of the present invention has excellent antistatic properties such that the half-life of the frictional charging voltage after dyeing with a cationic dye is 3 seconds or less and the frictional charging voltage is 2 kV or less. Even after five washes, the frictional voltage has a half-life of 3 seconds or less and a frictional voltage of 2 kV or less, which has excellent antistatic properties.
- the mixing ratio of the antistatic acrylic fiber in the fiber structure of the present invention is appropriately set according to the antistatic property required for the final fiber product, and is not particularly limited. % By weight or more, preferably 5% by weight or more, more preferably 10% by weight or more.
- fibers to be mixed with the antistatic acrylic fiber in the fiber structure of the present invention are not particularly limited, and natural fibers, organic fibers, semi-synthetic fibers, synthetic fibers are used, and further inorganic Fiber, glass fiber, etc. may be employed depending on the application.
- particularly preferable fibers include natural fibers such as wool, cotton, silk and hemp, synthetic fibers such as vinylon, polyester, polyamide and acrylic fibers, viscose, acetate fibers and fiber fiber fibers.
- the antistatic acrylic fiber and fiber structure of the present invention can be used in various fields where antistatic properties are desired, such as underwear, underwear, lingerie, pajamas, infant products, girdles, bras, socks, tights, leotards, General clothing such as trunks, sweaters, trainers, suits, sportswear, scarves, handkerchiefs, mufflers, artificial fur, baby products such as baby products, futons, futons, pillows, cushions, stuffed toys, masks, incontinence shorts, wet tissue Sanitary materials such as, car seats, interior items such as interiors, toilet covers, toilet mats, toilet items such as pet toilets, gas processing filters, bag filters, etc., insoles, slippers, gloves, towels, It can be used with rags, supporters, non-woven fabrics, etc.
- Dyeing conditions Cationic dye (Cath.Red 7BNH manufactured by Hodogaya Chemical Co., Ltd.), quaternary ammonium salt-based cationic dyeing agent (Astragal PAN manufactured by Bayer), acetic acid, and sodium acetate, respectively, fiber weight
- the dyeing solution prepared to be 0.02%, 1.8%, 2%, and 1% was heated to 60 ° C. Sample fibers were added to this dyeing solution, and the temperature was raised to 100 ° C. over 20 minutes with stirring. Thereafter, it was dyed for 30 minutes while maintaining the state at 100 ° C., slowly cooled, washed with water, and dried.
- the fineness (referred to as T-tex) and specific gravity d of the fiber are measured in a conventional manner.
- the fiber is scored in a 0.1% Neugen HC aqueous solution at a bath ratio of 1: 100 at 60 ° C. for 30 minutes, washed with running water, and then dried at 70 ° C. for 1 hour.
- This fiber is cut to a length of about 6 to 7 cm and left in an atmosphere of 20 ° C. and a relative humidity of 65% for 3 hours or more.
- the obtained fibers (filaments) are made into five bundles, and a conductive adhesive is applied to about 5 mm on one end of the fiber bundle.
- Example 1 An acrylonitrile polymer was prepared by aqueous suspension polymerization of 90% by weight of acrylonitrile, 9% by weight of methyl acrylate, and 1% by weight of sodium methallylsulfonate.
- An acrylic antistatic resin was prepared by aqueous suspension polymerization of 30% by weight of acrylonitrile and 70% by weight of methoxypolyethylene glycol methacrylate. After the acrylonitrile polymer is dissolved in a 45% by weight aqueous solution of rhodium soda, an acrylic antistatic resin dispersed in water is added and mixed, and the weight ratio of the acrylonitrile polymer to the acrylic antistatic resin is 95: A stock solution for spinning was prepared.
- the stock solution was extruded into a 15% by weight, 1.5 ° C. rhodium soda aqueous solution, and then the resulting fiber was washed with water and stretched 12 times to produce a 1.7 dtex raw material fiber.
- This raw fiber is immersed in a 10% by weight lithium perchlorate bath and treated at 80 ° C. for 1 minute, then squeezed to a certain level with a nip roller, steam moist heat treated at 110 ° C. for 10 minutes, and dried and densified with a 120 ° C. hot air dryer An antistatic acrylic fiber was obtained.
- the details of the configuration of the antistatic acrylic fiber of Example 1 and the evaluation results are shown in Table 1.
- Example 2 The composition of the acrylonitrile polymer is 88% by weight of acrylonitrile and 12% by weight of vinyl acetate, the composition of the acrylic antistatic resin is 30% by weight of acrylonitrile, 12% by weight of 2-methacryloyloxyethyl isocyanate, and 58% by weight of polyethylene glycol monomethyl ether.
- a raw fiber was prepared in the same manner as in Example 1 except that. This raw fiber is immersed in a lithium perchlorate 10% by weight bath, treated at 80 ° C. for 1 minute, squeezed with a nip roller, steam moist heat treated at 110 ° C. for 10 minutes, and dried and densified with a 120 ° C. hot air dryer. An antistatic acrylic fiber was obtained. Table 1 shows details of the configuration of the antistatic acrylic fiber of Example 2 and the evaluation results.
- Example 3 Using the same spinning stock solution as in Example 1, the stock solution was extruded into a 15% by weight Rhodan soda aqueous solution at 1.5 ° C., then the resulting fiber was washed with water, stretched 12 times, and then steam moist heat treatment at 110 ° C. for 10 minutes. The raw fiber was made by doing. This raw material fiber is immersed in a 0.03% by weight lithium perchlorate bath and treated at 98 ° C. for 30 minutes, then squeezed uniformly with a nip roller, and dried and densified with a 130 ° C. roller dryer to obtain an antistatic acrylic fiber. It was. Table 1 shows the details of the configuration of the antistatic acrylic fiber of Example 3 and the evaluation results.
- Example 4 Raw material fibers were prepared in the same manner as in Example 3 except that the composition of the acrylonitrile polymer was 88% by weight of acrylonitrile and 12% by weight of vinyl acetate. This raw material fiber is immersed in a 0.03% by weight lithium perchlorate bath and treated at 98 ° C. for 30 minutes, then squeezed to a constant level with a nip roller, dried and densified with a 130 ° C. roller dryer, Obtained. Table 1 shows details of the constitution and evaluation results of the antistatic acrylic fiber of Example 4.
- Example 5 Raw material fibers were prepared in the same manner as in Example 4. This raw fiber was immersed in a lithium perchlorate 0.1% by weight bath, treated at 98 ° C. for 1 minute, wet-heat treated with steam at 120 ° C. for 10 minutes, wet-densified, and then dried with a hot air dryer. An antistatic acrylic fiber was obtained. The details of the constitution of the antistatic acrylic fiber of Example 5 and the evaluation results are shown in Table 1.
- Example 6 Raw material fibers were prepared in the same manner as in Example 4. This raw fiber was immersed in a 0.03% by weight lithium perchlorate bath, treated at 98 ° C. for 10 minutes, further wet-densified in a treatment solution at 120 ° C. for 10 minutes, and then dried with a hot air drier. An electrically conductive acrylic fiber was obtained. Table 1 shows the details of the configuration of the antistatic acrylic fiber of Example 6 and the evaluation results.
- Example 7 Antistatic acrylic fibers were obtained in the same manner as in Example 3 except that drying and densification were performed at 170 ° C. while changing the speed between the rollers of the roller dryer and tensioning the fibers. The details of the configuration of the antistatic acrylic fiber of Example 7 and the evaluation results are shown in Table 1.
- Example 8 An antistatic acrylic fiber was obtained in the same manner as in Example 4 except that drying and densification were performed at 170 ° C. while changing the speed between rollers of the roller dryer and tensioning the fiber. The details of the configuration of the antistatic acrylic fiber of Example 8 and the evaluation results are shown in Table 1.
- Example 3 A spinning dope was prepared by adding 0.5% by weight of lithium perchlorate to the spinning dope of Example 1. The stock solution was extruded into a 15% by weight, 1.5 ° C. aqueous rhodium soda solution, but yarn breakage occurred and spinning was impossible.
- Example 7 and 8 the falling densification of alkali metal ions was suppressed to a minimum by performing drying densification by tension, the alkali metal ion retention rate and residual amount after dyeing increased, and the dyeability was also good. .
- the volume resistivity values of Examples 1 to 8 are 10 3 to 10 6 ⁇ ⁇ cm level, and it can be said that they have antistatic performance.
- an acrylic antistatic resin is not contained, the amount of introduced alkali metal ions is small, and the retention rate and residual amount of alkali metal ions after dyeing are extremely low. It was.
- the volume resistivity value is 10 14 ⁇ ⁇ cm level, and it cannot be said that there is antistatic performance.
- spinning was attempted by adding lithium perchlorate to the spinning stock solution. However, the spinning stock solution partially gelled, and nozzle clogging and thread breakage occurred, and good fibers could not be obtained.
- Example 9 to 16, Comparative Examples 4 to 6 The antistatic acrylic fibers of Examples 1 to 8 and Comparative Examples 1 and 2 were spun according to a conventional method to obtain an acrylic mixed fuel yarn having a count of 1/48, a twist number of 660, and an arbitrary mixing ratio.
- K8-1.7T51 manufactured by Nippon Exlan Industry Co., Ltd.
- acrylic knitted fabric samples of Examples 9 to 16 and Comparative Examples 4 and 5 were obtained by 14G2P rubber knitting.
- Comparative Example 6 a knitted fabric sample using 100% K8-1.7T51 was prepared. Table 2 shows details of the configurations of the knitted fabrics of Examples 9 to 16 and Comparative Examples 4 to 6 and evaluation results.
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Abstract
Description
(i)体積固有抵抗値が103~106Ω・cmである。
(ii)アクリル系制電性樹脂が下記式[I]で示す共重合成分を90~30重量%構成成分として含有するアクリル系重合体であり、アルカリ金属イオンがリチウムイオンである。
式中、Rは水素原子又は炭素数1~5のアルキル基、R′は水素原子又は炭素数1~18のアルキル基、フェニル基もしくはそれらの誘導体であり、15<l<50,0≦m<lである。
(iii)カチオン染料で染色後の繊維の染色前の繊維に対するアルカリ金属イオン保持率が40%以上である。
(iv)カチオン染料で染色後のアルカリ金属イオン含有量が繊維に対して80ppm以上である。
(i)水洗、延伸した後の未乾燥繊維の水分率が50~130重量%であり、水洗、延伸処理とアルカリ金属塩水溶液での処理との間に、100~130℃の温度での温熱処理が行われる。
(ii)緻密化処理を緊張下で行う。
(iii)緻密化処理を湿潤状態で行う。
本発明で使用されるアクリロニトリル系重合体は、従来公知のアクリル繊維の製造に用いられるものであればよいが、構成成分としてアクリロニトリルを80~100重量%、好ましくは88~100重量%含有することが必要である。アクリロニトリルの含有量が上記範囲に満たない場合には、後述する繊維内部へのアルカリ金属イオンの導入が困難となる可能性がある。
本発明の制電性アクリル繊維は、アルカリ金属イオンを繊維に含有せしめることが必要であり、できるだけ多くのアルカリ金属イオンが、アクリル系制電性樹脂に局在化していることが好ましい。さらに、アルカリ金属イオンが繊維から脱落しないように、アルカリ金属イオンを含有せしめた後、繊維に存在するボイドを極力減少させることが望ましい。このことから、本発明の製造方法は、上述したアクリロニトリル系重合体とアクリル系制電性樹脂とからなる重合体混合物を含む紡糸原液を通常の方法で湿式紡糸し、水洗、延伸した後、緻密化前の繊維をアルカリ金属塩水溶液で処理し、その後緻密化することを特徴とする。
カチオン染料(保土谷化学工業(株)社製Cath.Red 7BNH)、4級アンモニウム塩系のカチオン緩染剤(Bayer社製Astragal PAN)、酢酸、及び酢酸ナトリウムを各々繊維重量に対して0.02%、1.8%、2%、1%となるよう調製した染色液を60℃まで昇温した。この染色液に試料繊維を投入し、攪拌しながら20分かけて100℃まで昇温した。その後100℃の状態を保ちながら30分間染色し、徐冷、水洗、乾燥した。
アルカリ金属塩処理した繊維の酸分解を行い、IPC発光分光分析法により繊維中に含有されるアルカリ金属イオン量を測定した。
試料繊維を51mmの定長にカットし、カチオン染料(Malachite Green)2%omf(%omfは繊維質量に対する百分率)および酢酸2%omf含有する染色浴に75℃×60分浸漬した後、ソーピング、水洗、乾燥を行った。得られた繊維0.1gをγ-ブチロラクトン25mlに溶解させ、分光光度計にて吸光度(A)を測定した。一方、ボイルすることによりカチオン染料(Malachite Green)1%omfを完全に吸収させたアクリル繊維0.1gをγ-ブチロラクトン25mlに溶解させ、分光光度計にて吸光度(B)を測定した。以上の測定値を次式に代入して染料飽和値を計算した。染料飽和値は高いほどよいが、1.5以上あれば良好とされる。
染料飽和値(%omf)=A/B
予め、繊維の繊度(Tテックスとする)及び比重dを常法で測定する。次に、繊維を0.1%ノイゲンHC水溶液中で浴比1:100として60℃×30分間スコアリング処理し、流水で洗浄後、70℃で1時間乾燥する。この繊維を6~7cm程度の長さに切断し、20℃、相対湿度65%の雰囲気下に3時間以上放置する。得られた繊維(フィラメント)を5本束とし、繊維束の一方の端に導電性接着剤を5mm程度塗布する。この繊維束に900mg/テックスの荷重を加えた状態で、導電性接着剤が塗布された位置から5cm程度離れた位置に上記導電性接着剤を塗布し(このときの導電性接着剤間距離をL(cm)とする)、測定試料とする。該測定試料に900mg/テックスの荷重を加えた状態で導電性接着剤塗布部に電極を接続し、直流500Vを印加したときの抵抗R(Ω)をHigh RESISTANCE METER 4329A(YOKOGAWA-HEWLETT-PACKARD製)で測定し、次式より体積固有抵抗を算出した。
体積固有抵抗(Ω・cm)=(R×T×10-5)/(L×d)
JIS-L-0217の103法(家庭用洗濯機用)に従い、花王株式会社製アタックを洗剤として使用して試料編地を5回繰り返し洗濯した。
JIS-L-1094(摩擦帯電圧測定法)に従い、京大化研式ロータリースターティックテスター(興亜商会社製)により試料編地の染色後の摩擦帯電圧、及び染色後に5回洗濯後の摩擦帯電圧を評価した。スタティックオネストメーター使用条件は、印加電圧1000V、印加時間30秒、試料回転数1000rpmである。
JIS-L-1094(摩擦帯電圧測定法)に従い、スタティックオネストメーター(宍戸商会社製)により試料編地の染色後の摩擦帯電圧、及び染色後に5回洗濯後の摩擦帯電圧を評価した。ロータリースターティックテスターの使用条件は、ドラム回転数400rpm,摩擦時間60秒,摩擦布綿である。
延伸後、湿熱処理前の未乾燥繊維を純水中に浸漬した後、遠心脱水機(国産遠心機(株)社製TYPE H-770A)で遠心加速度1100G(Gは重力加速度を示す)下2分間脱水する。脱水後重量(W3とする)を測定した後、該未乾燥繊維を120℃で15分間乾燥して重量(W2とする)を測定し、次式により計算する。
延伸後の未乾燥繊維の水分率(%)=(W3-W2)/W2×100
アクリロニトリル90重量%、アクリル酸メチル9重量%、メタアリルスルホン酸ナトリウム1重量%を水系懸濁重合することによってアクリロニトリル系重合体を作成した。また、アクリロニトリル30重量%、メトキシポリエチレングリコールメタアクリレート70重量%を水系懸濁重合することによってアクリル系制電性樹脂を作成した。アクリロニトリル系重合体を濃度45重量%のロダンソーダ水溶液に溶解した後、水に分散させたアクリル系制電性樹脂を添加混合し、アクリロニトリル系重合体とアクリル系制電性樹脂の重量比が95:5である紡糸原液を作成した。該原液を15重量%、1.5℃のロダンソーダ水溶液中に押出し、次いで得られた繊維を水洗し、12倍延伸することにより1.7dtexの原料繊維を作成した。この原料繊維を過塩素酸リチウム10重量%浴に浸漬し80℃×1分処理した後、ニップローラーで一定に絞り、110℃×10分間スチーム湿熱処理し、120℃熱風乾燥機で乾燥緻密化し、制電性アクリル繊維を得た。実施例1の制電性アクリル繊維の構成の詳細と評価結果を表1に示す。
アクリロニトリル系重合体の組成をアクリロニトリル88重量%、酢酸ビニル12重量%とし、アクリル系制電性樹脂の組成をアクリロニトリル30重量%、2-メタクリロイルオキシエチルイソシアネート12重量%、ポリエチレングリコールモノメチルエーテル58重量%とした以外は実施例1と同様にして原料繊維を作成した。この原料繊維を過塩素酸リチウム10重量%浴に浸漬し80℃×1分間処理した後、ニップローラーで一定に絞り、110℃×10分間スチーム湿熱処理し、120℃熱風乾燥機で乾燥緻密化し、制電性アクリル繊維を得た。実施例2の制電性アクリル繊維の構成の詳細と評価結果を表1に示す。
実施例1と同じ紡糸原液を用い、該原液を15重量%、1.5℃のロダンソーダ水溶液中に押出し、次いで得られた繊維を水洗し、12倍延伸後、110℃×10分間スチーム湿熱処理することにより原料繊維を作成した。この原料繊維を過塩素酸リチウム0.03重量%浴に浸漬し98℃×30分間処理した後、ニップローラーで一定に絞り、130℃ローラー乾燥機で乾燥緻密化し、制電性アクリル繊維を得た。実施例3の制電性アクリル繊維の構成の詳細と評価結果を表1に示す。
アクリロニトリル系重合体の組成を、アクリロニトリル88重量%、酢酸ビニル12重量%とした以外は実施例3と同様にして原料繊維を作成した。この原料繊維を過塩素酸リチウム0.03重量%浴に浸漬し98℃×30分間処理した後、ニップローラーにて一定に絞り、130℃ローラー乾燥機で乾燥緻密化し、制電性アクリル繊維を得た。実施例4の制電性アクリル繊維の構成の詳細と評価結果を表1に示す。
実施例4と同様にして原料繊維を作成した。この原料繊維を過塩素酸リチウム0.1重量%浴に浸漬し98℃×1分間処理した後、120℃のスチームで10分間湿熱処理を行い湿潤緻密化し、その後、熱風乾燥機で乾燥し、制電性アクリル繊維を得た。実施例5の制電性アクリル繊維の構成の詳細と評価結果を表1に示す。
実施例4と同様にして原料繊維を作成した。この原料繊維を過塩素酸リチウム0.03重量%浴に浸漬し98℃×10分間処理した後、さらに120℃×10分間処理液中で湿潤緻密化し、その後、熱風乾燥機で乾燥し、制電性アクリル繊維を得た。実施例6の制電性アクリル繊維の構成の詳細と評価結果を表1に示す。
ローラー乾燥機のローラー間の速度を変更して繊維を緊張させた状態で、170℃で乾燥緻密化を行うこと以外は実施例3と同様にして制電性アクリル繊維を得た。実施例7の制電性アクリル繊維の構成の詳細と評価結果を表1に示す。
ローラー乾燥機のローラー間の速度を変更して繊維を緊張させた状態で、170℃で乾燥緻密化を行うこと以外は実施例4と同様にして制電性アクリル繊維を得た。実施例8の制電性アクリル繊維の構成の詳細と評価結果を表1に示す。
アクリル系制電性樹脂を加えない以外は、それぞれ実施例7、8と同様の方法で紡糸原液を作成し、紡糸・アルカリ金属塩処理・緊張下乾燥緻密化を行い、比較例1,2のアクリル繊維を得た。比較例1,2の制電性アクリル繊維の構成の詳細と評価結果を表1に示す。
実施例1の紡糸原液に過塩素酸リチウム0.5重量%を加え、紡糸原液を作成した。該原液を15重量%、1.5℃のロダンソーダ水溶液中に押出したが、糸切れが発生し紡糸不可能であった。
実施例1~8及び比較例1、2の制電性アクリル繊維を用いて常法に従い紡績し、番手1/48、撚り数660、任意の混率のアクリル混燃糸を得た。混紡相手としては通常のアクリル繊維であるK8-1.7T51(日本エクスラン工業株式会社製)を使用した。更に14G2Pゴム編みにて実施例9~16及び、比較例4,5のアクリル編地試料を得た。また、比較例6としてK8-1.7T51を100%使用した編地試料を作成した。実施例9~16、比較例4~6の編地の構成の詳細と評価結果を表2に示す。
Claims (11)
- 80~100重量%のアクリロニトリルを構成成分として含有するアクリロニトリル系重合体90~99重量%と、10~70重量%のアクリロニトリルを構成成分として含有するアクリル系制電性樹脂10~1重量%とからなる制電性アクリル繊維であって、アルカリ金属イオンが繊維に対して150ppm以上含有されていることを特徴とする制電性アクリル繊維。
- 体積固有抵抗値が103~106Ω・cmであることを特徴とする請求項1に記載の制電性アクリル繊維。
- カチオン染料で染色後の繊維の染色前の繊維に対するアルカリ金属イオン保持率が40%以上であることを特徴とする請求項1~3のいずれかに記載の制電性アクリル繊維。
- カチオン染料で染色後のアルカリ金属イオン含有量が繊維に対して80ppm以上であることを特徴とする請求項4に記載の制電性アクリル繊維。
- 請求項1~5のいずれかに記載の制電性アクリル繊維を少なくとも一部に含むことを特徴とする制電性繊維構造体。
- カチオン染料で染色後の摩擦帯電圧の半減期が3秒以下であり、かつ摩擦帯電圧が2kV以下であることを特徴とする制電性繊維構造体。
- 80~100重量%のアクリロニトリルを構成成分として含有するアクリロニトリル系重合体90~99重量%と、10~70重量%のアクリロニトリルを構成成分として含有するアクリル系制電性樹脂10~1重量%とからなる重合体混合物を含む紡糸原液を湿式紡糸し、得られた繊維を水洗、延伸した後にアルカリ金属塩水溶液で処理し、次いで緻密化することを特徴とする制電性アクリル繊維の製造方法。
- 水洗、延伸した後の未乾燥繊維の水分率が50~130重量%であること、及び水洗、延伸処理とアルカリ金属塩水溶液での処理との間に、100~130℃の温度での温熱処理が行われることを特徴とする請求項8に記載の制電性アクリル繊維の製造方法。
- 緻密化処理を緊張下で行うことを特徴とする請求項8又は9に記載の制電性アクリル繊維の製造方法。
- 緻密化処理を湿潤状態で行うことを特徴とする請求項8又は9に記載の制電性アクリル繊維の製造方法。
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| JP2013204206A (ja) * | 2012-03-29 | 2013-10-07 | Daiwabo Holdings Co Ltd | 多機能性再生セルロース繊維、それを含む繊維構造物及びそれらの製造方法 |
| JP2013241715A (ja) * | 2012-05-22 | 2013-12-05 | Mitsubishi Rayon Co Ltd | パイル布帛 |
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| JP5696944B2 (ja) * | 2010-09-13 | 2015-04-08 | 日本エクスラン工業株式会社 | 発色性に優れた制電性アクリル繊維およびその製造方法 |
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| WO2018084040A1 (ja) * | 2016-11-01 | 2018-05-11 | 帝人株式会社 | 布帛およびその製造方法および繊維製品 |
| CN108286120B (zh) * | 2018-03-30 | 2020-06-26 | 青岛迦南美地家居用品有限公司 | 抗静电面料 |
| CN109295523B (zh) * | 2018-09-30 | 2021-01-26 | 天津工业大学 | 一种永久抗静电丙烯腈基共聚物及其纤维制备方法 |
| KR102280821B1 (ko) | 2021-01-06 | 2021-07-21 | 김은선 | 대전 방지 성능을 갖는 그래핀 함유 기능성 섬유원단, 이를 포함하는 의류 및 여성용 드레스 |
| KR102503534B1 (ko) | 2022-08-19 | 2023-03-02 | 조윤주 | 기능성 섬유 원단으로 형성된 대전 방지 효과를 갖는 드레스 |
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- 2009-06-19 US US12/918,161 patent/US8183324B2/en not_active Expired - Fee Related
- 2009-06-19 CN CN2009801083352A patent/CN101965420B/zh not_active Expired - Fee Related
- 2009-06-19 JP JP2010520745A patent/JP4962619B2/ja not_active Expired - Fee Related
- 2009-06-19 KR KR1020107018667A patent/KR101548762B1/ko not_active Expired - Fee Related
- 2009-06-19 WO PCT/JP2009/002798 patent/WO2010007728A1/ja not_active Ceased
- 2009-07-14 TW TW098123669A patent/TWI481753B/zh not_active IP Right Cessation
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| JP2013241715A (ja) * | 2012-05-22 | 2013-12-05 | Mitsubishi Rayon Co Ltd | パイル布帛 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4962619B2 (ja) | 2012-06-27 |
| CN101965420A (zh) | 2011-02-02 |
| CN101965420B (zh) | 2013-07-17 |
| KR101548762B1 (ko) | 2015-08-31 |
| EP2243870A1 (en) | 2010-10-27 |
| EP2243870B1 (en) | 2012-10-10 |
| US8183324B2 (en) | 2012-05-22 |
| JPWO2010007728A1 (ja) | 2012-01-05 |
| TWI481753B (zh) | 2015-04-21 |
| EP2243870A4 (en) | 2011-12-28 |
| KR20110030416A (ko) | 2011-03-23 |
| US20100324221A1 (en) | 2010-12-23 |
| TW201009142A (en) | 2010-03-01 |
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