WO2009044571A1 - インクジェット装置用微粒子分散液 - Google Patents
インクジェット装置用微粒子分散液 Download PDFInfo
- Publication number
- WO2009044571A1 WO2009044571A1 PCT/JP2008/061069 JP2008061069W WO2009044571A1 WO 2009044571 A1 WO2009044571 A1 WO 2009044571A1 JP 2008061069 W JP2008061069 W JP 2008061069W WO 2009044571 A1 WO2009044571 A1 WO 2009044571A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- dispersion
- spacer
- particles
- specific gravity
- dispersion medium
- Prior art date
Links
Classifications
-
- 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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
- G02F1/13392—Gaskets; Spacers; Sealing of cells spacers dispersed on the cell substrate, e.g. spherical particles, microfibres
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
Definitions
- the present invention relates to a fine particle dispersion for an inkjet apparatus.
- spacer beads are used to keep the thickness of the liquid crystal layer between the two substrates uniform and constant.
- the spacer beads include inorganic particles, organic particles, and inorganic / organic composite particles.
- Inorganic particles are generally very hard, resulting in physical damage to the alignment layer and CF, resulting in defects, which are less preferred as spacer beads.
- Organic particles are generally soft, so the number of sprays must be increased significantly and image quality is reduced. In addition, it lacks long-term reliability due to poor heat resistance. Under these circumstances, inorganic-organic composite particles that give moderate hardness and resilience are widely used as spacer beads.
- JP-A-2007-47773 a solvent having a boiling point of 200 ° C. or higher and a surface tension of 42 mNZm or higher is used as the dispersion vessel in the fine particle spacer dispersion for display.
- the fine particle spacer dispersion for display body contains a receding contact angle of 5 ° or more with respect to the substrate A dispersion medium in which water is 10% by weight or less is used.
- Japanese Patent Laid-Open No. 2006-171343 discloses that in a spacer dispersion for manufacturing a liquid crystal display device, the spacer particles are hollow particles having voids therein, the specific gravity is 1.3 or less, and the 10% compression modulus is 2000. It is described that the specific gravity difference with respect to the dispersion solvent, which is ⁇ 15000 MPa, is 0.05 or less.
- a specific example of a spacer dispersion is a spacer dispersion having a specific gravity of 1.08 and a viscosity of 19 mPa's, and a specific gravity of 1.0062 and a viscosity of 8. OmPa-s.
- liquids are described, there is no description of dispersions that achieve a specific gravity higher than this with a lower viscosity.
- An object of the present invention is to facilitate discharge from a nozzle and achieve good spraying even when fine particles having a relatively large specific gravity are dispersed in a fine particle dispersion for an inkjet device.
- the present invention Dispersion medium,
- the present invention relates to a fine particle dispersion for an ink jet device, which contains fine particles.
- the viscosity range that can be stably ejected as inkjet ink is approximately 5 to 25 mPa ⁇ s (20 ° C), depending on the type of inkjet head.
- the specific gravity difference between the fine particles and the dispersion medium is preferably small as described in Patent Document 3, and if so, the dispersion medium for dispersing the fine particles having a specific gravity of 1.15 to 1.25 is Therefore, it was considered preferable to have a specific gravity of 1.15 to 1.25. This corresponds to the region surrounded by the dotted line in Fig. 1 (specific gravity 1.15 to 1.25 and viscosity 5 to 25 mPa ⁇ s). However, such conditions could not be realized with each dispersion medium described in the cited document.
- Figure 1 is a graph showing the relationship between the specific gravity and viscosity of a dispersion medium according to the prior art.
- FIG. 2 is a graph showing the relationship between the specific gravity and viscosity of a dispersion medium according to the present invention 1 to 6, Comparative Example 1 and the prior art.
- the use of the fine particle dispersion of the present invention is particularly suitable for a technique of arranging a spacer at a fixed point on a substrate, but is not limited thereto.
- the fine particle dispersion of the present invention can be enclosed in an electronic paper cell by an ink jet method. In the cell for electronic paper, it is necessary to enclose the same amount of dispersion in each cell, but the present invention is also suitable for such a use.
- sugar alcohols examples include D-threitol, L-threitol, erythritol, D-arabitol, L-arabitol, ribitol, xylitol, alozulcitol, dulcitol, D-tallitol, L-talit monole, D—dizzitore, L-ditotinore, D—mannito monore, L—mannito monore, D-iditol, D-sorbitol, L-sorbitol, myo-maltitol And inositol.
- Monosaccharides include D-throse, L-throse, D-erythrose, L-erythrose, D-arabinose, L-arabinose, D-ribose, L-ribose.
- Disaccharides include maltose, isomaltose, cerbiose, lac-lose, sucrose, treasure / sucrose, iso-t / re-loose, gentian sage, melibiose, llaranos, sophorose Isosaccharose and the like.
- polysaccharides higher than trisaccharide examples include glucan, fructan, mannan, xylan, galacturonan, mannuronan, homodarlicans such as N-acetyl / legnorecosamine polymer, heterodarlicans such as diheterodalican and triheterodarican.
- the dispersion medium dissolves at least one of sugar and sugar alcohol. Specifically, it may be water alone, or one or two or more organic dispersion media selected from the following, or a mixture of water and organic dispersion media.
- organic dispersion medium examples include the following.
- ethylene glycol such as ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, etc.
- Body Low and polar monoalkyl ethers such as monomethyl ether, monoethyl ether, monoisopropenoreate / le, monopropinoreatenore, monobutinoreatenore, etc .; dimethyl ether, jetinorete tenole, dii Examples include lower dialkyl ethers such as propyl ether and dipropyl ether; alkyl esters such as monoacetate and diacetate.
- multimers of propylene glycol such as propylene glycol, dipropylene glycol, tripropylene glycol and tetrapropylene glycol; or these monomethyl ether, monoethyl ether, monoisopropenoate, and monopropylene.
- Lower monoalkyl ethers such as Noleyatenole and Monobchinoleete
- Lower dialkyl ethers such as dimethyl ether, jetyl ether, diisopropyl ether and dipropyl ether
- Alkyl esters such as monoacetate and diacetate, etc. Is mentioned.
- examples thereof include polyhydric alcohols such as triol, trimethylololepropane, trimethylolethane, pentaerythritol, ether derivatives thereof, and acetate derivatives.
- Sugar and sugar alcohol may be contained only in one or both.
- the total weight of sugar and sugar alcohol is preferably 1 to 70 parts by weight from the viewpoint of the present invention. More preferably, it is ⁇ 60 parts by weight. It is preferable to contain water in the dispersion medium. In this case, when the total weight of the dispersion medium, sugar and sugar alcohol is 100 parts by weight, the weight of water is preferably 5 to 85 parts by weight.
- the specific gravity of the dispersion containing sugar and sugar alcohol can be selected according to the specific gravity of the spacer particles. From the viewpoint of the present invention, 1.15 to: 1.25 is particularly preferable.
- the particle size of the fine particles used in the present invention is 0.5 ⁇ ! ⁇ 10 / xm is preferable, and 2 ⁇ to 8 jum is more preferable.
- the specific gravity of the fine particles is preferably from 1.10 to 1.30, particularly preferably from 1.15 to 1.25.
- the specific gravity difference between the dispersion medium and the fine particles is not particularly limited, but is preferably 0 or more, 0 or less and 1 or less.
- the material of the fine particles is not particularly limited, and examples thereof include resins, organic substances, inorganic substances, compounds and mixtures thereof.
- the resin is not particularly limited. For example, polyethylene, polypropylene, polymethylpentene, polyvinyl chloride, polytetrafluoroethylene, polystyrene, polymethylmethacrylate, polyethylene terephthalate, polybutylene terephthalate.
- Linear or cross-linked polymer such as rate, polyamide, polyimide, polysulfone, polyphenylene oxide, polyacetal, etc .; epoxy resin, phenol resin, melamine resin, benzoguanamine resin, unsaturated polyester Resins having a cross-linked structure such as resin, dibutene benzene polymer, dibutene benzene monostyrene copolymer, divinyl benzene mono acrylate copolymer, diaryl phthalate polymer, triaryl isocyanurate polymer, etc.
- silica etc. are mention
- the production method of the fine particles is not particularly limited, and polymerization methods such as emulsion polymerization, dispersion polymerization, suspension polymerization, and side polymerization, particle precipitation granulation method from a solution in which a polymer material is dissolved in a solvent, or a polymer It can be obtained from a known method such as a method of pulverizing the material into particles.
- the fine particles are inorganic-organic composite particles.
- Inorganic organic composite particles are particles obtained by polymerizing an organic compound and an inorganic compound as monomers.
- inorganic compounds such as S i 0 2 , A 1 2 0 3 , T i 0 2 , Z r O 2 , S b 2 O 5 , S n 0 2 , I n 2 0 3 etc.
- titanate-based, silane-based, and aluminum-based coupling agents are examples of organic compounds.
- a hydrolyzable silyl group as the monomer as the inorganic compound monomer.
- ⁇ -methacryloxypropyl bimethoxysilane ⁇ -methacryloxypropyl trimethoxysilane, ⁇ / -methacryloxypropyl methyldi Methoxysilane, ⁇ -methacryloxypropylmethyl methoxysilane, ⁇ -acryloxypropylmethyldimethyoxysilane, ⁇ -methoxypropylbis (trimethoxy) methylsilane, 1 1-methacryloxy undecamethylene methoxysilane, Vinyltriethoxysilane, 4-vinyltetramethylenetrimethoxysilane, 8-vinyloctamethyltrimethoxysilane, 3-trimethoxysilylpropylvinyl ether, vinyltriacetoxysilane, ⁇ -trimethoxysilylstyrene , .rho.
- examples of the polymerizable monomer that is polymerized with the hydrolyzable silyl group include the following.
- Fine particles include, for example, Natoko Spassa (manufactured by NATCO), Micro Pearl (manufactured by Sekisui Chemical Co., Ltd.), posters Solistar Seahoster KE (Nippon Catalytic Chemical Industry), Chemisnow (Soken Chemical ( Co., Ltd.), Tospar (GE Toshiba Silicone Co., Ltd.), Hayabies (Hayakawa Rubber Co., Ltd.), etc., are not particularly limited.
- the solid content concentration of the fine particles in the dispersion of the present invention is not particularly limited, but is preferably from 0.05 to 5% by weight, and more preferably from 0.1 to 2% by weight of the total dispersion. .
- the discharged droplets are not likely to contain fine particles. If the solid content concentration of fine particles in the dispersion exceeds 5% by weight, the nozzles of the ink jet device are likely to be clogged, or the amount of fine particles in the discharged dispersion or ink jet ink droplets is excessive. There is a tendency for fine particles to accumulate and the gap accuracy to decrease.
- the spacer particles are dispersed in a single particle form in the dispersion medium.
- the dispersion of the present invention includes various additives such as a tackifier, a viscosity modifier, a pH adjuster, a surfactant, an antifoaming agent, and an antioxidant as long as the effect is not impaired.
- a tackifier such as thermosetting resins, thermoplastic resins, and active energy ray-curable resin.
- the spacer dispersion liquid of the present invention is discharged onto the substrate by the ink jet method.
- the ink jet method is a fixing method based on the principle of droplet generation of a spacer dispersion liquid used as ink, and is classified into two methods: continuous jet method, drop-on, and demand method. Can be used in the invention.
- the continuous jet method is a method in which droplets are continuously generated, and recording is performed by selecting the droplets according to a recording signal.
- the continuous jet method includes a Sweet type, a micro dot type, a Herz type, and an IRIS type, and any of them can be used in the present invention.
- the drop-on-demand method is a method in which the spacer dispersion liquid is ejected according to the recording signal.
- the drop-on-demand method includes a pressure pulse method, a thermal jet method, and an ER F method, all of which can be used in the present invention.
- a piezo method in which the dispersion liquid is discharged from the nozzle by vibration of the piezo element
- a thermal method in which the liquid is discharged from the nozzle by utilizing the expansion of the liquid due to rapid heating, and a liquid by the rapid heating of the heating element.
- Examples include a bubble jet (registered trademark) system that discharges water from a nozzle.
- the nozzle diameter of the ink jet device is not particularly limited, but may be, for example, 10 to 100 ⁇ m.
- the diameter of the droplets ejected from the nozzle is not particularly limited, but is preferably 10 to 100 ⁇ m.
- the diameter of the droplets discharged onto the substrate is not particularly limited, and is preferably 10 to: I 50 ⁇ m.
- the present invention is used for spraying spacer particles and can be used for various display elements, touch switches, and the like, but is suitable for a liquid crystal display element.
- it is suitable for manufacturing a liquid crystal display element in which a light shielding film is arranged between pixels.
- the substrate is not particularly limited, and may be a substrate generally used as a panel substrate for a liquid crystal display device such as a glass plate or a resin plate.
- a liquid crystal display element is formed by overlapping two substrates.
- the spacer of the present invention is usually arranged on one substrate by the ink jet method. Then, a liquid crystal display element is manufactured by overlapping with the other substrate.
- the substrate from which the spacer is discharged is preferably the substrate on the side where the light-shielding film is formed from the viewpoint of alignment.
- the arrangement of the spacer particles on the substrate is not particularly limited, and may be a random arrangement or a pattern arrangement in which a pattern is arranged at a specific position. From the viewpoint of suppressing deterioration in display quality such as light leakage caused by the spacer particles, it is preferable to arrange the spacer particles in the non-display portion of the panel.
- the non-display portion is a light shielding layer called a black matrix generally formed around the pixel.
- a black matrix generally formed around the pixel.
- a portion where a TFT element is located exists, but a spacer is It is preferable to place it under black matrix so that the TFT element is not destroyed.
- the particle density of the spacers on the substrate is not particularly limited. It is preferable that 1S is usually 50 to 400 in a 1 mm square region. As long as the preferred particle density is satisfied, the spacer may be arranged in any pattern in any part under the black matrix.
- the method for drying the medium in the droplets of the spacer dispersion discharged on the substrate is not particularly limited.
- the spacer particles have a diameter smaller than the droplet diameter immediately after being discharged onto the substrate. Dry to be in the circle.
- the substrate surface temperature at the time when the spacer dispersion liquid is discharged onto the substrate is It is not limited.
- Spacer particles (B) were obtained in the same manner as the examples (crosslinked polymer particles B) described in JP-A-2003-317546.
- a 2 L separable flask was charged with 400 g of polyvinylpyrrolidone 3.5% methanol solution, 42 g of styrene, 63 g of p-trimethoxysilylstyrene, and the mixture was gently stirred in a nitrogen stream at 60 ° C. Warm up. Add 4 g of azobisisobutyronitrile and let it react for 12 hours.
- Mixed solvent 1/99 (weight ratio)
- the mixture was dispersed so as to obtain a dispersion 4 of Example 4 by filtration through a stainless steel mesh having an opening of 10 ⁇ m. Ultrasonic waves were used for dispersion.
- a RE type viscometer manufactured by Toki Sangyo Co., Ltd. was used for viscosity measurement.
- the prepared dispersion was subjected to a discharge test using an inkjet device equipped with a 30 / m nozzle at the tip of a piezo head.
- the number of nozzles that could be discharged from all 128 nozzles is shown below. Table 2
- fine particles having a relatively high specific gravity can be discharged and dispersed well by the ink jet device.
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- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Nonlinear Science (AREA)
- Optics & Photonics (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Liquid Crystal (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200880110504A CN101836156A (zh) | 2007-10-05 | 2008-06-11 | 喷墨装置用微粒分散液 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007-261699 | 2007-10-05 | ||
JP2007261699A JP2009092805A (ja) | 2007-10-05 | 2007-10-05 | インクジェット装置用微粒子分散液 |
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Publication Number | Publication Date |
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WO2009044571A1 true WO2009044571A1 (ja) | 2009-04-09 |
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ID=40526003
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2008/061069 WO2009044571A1 (ja) | 2007-10-05 | 2008-06-11 | インクジェット装置用微粒子分散液 |
Country Status (5)
Country | Link |
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JP (1) | JP2009092805A (ja) |
KR (1) | KR20100070335A (ja) |
CN (1) | CN101836156A (ja) |
TW (1) | TW200916537A (ja) |
WO (1) | WO2009044571A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US8453770B2 (en) | 2009-01-29 | 2013-06-04 | Tesla Motors, Inc. | Dual motor drive and control system for an electric vehicle |
CN112763383B (zh) * | 2019-11-04 | 2024-04-26 | 乐凯华光印刷科技有限公司 | 一种用光子相关纳米粒度仪测定热塑性纳微米颗粒粒径及其分布的测定方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0711182A (ja) * | 1993-06-22 | 1995-01-13 | Citizen Watch Co Ltd | 記録液 |
JP2003082024A (ja) * | 2000-10-12 | 2003-03-19 | Seiko Epson Corp | ポリマーエマルジョンの製造方法およびそれを含んでなるインク組成物 |
JP2004029578A (ja) * | 2002-06-27 | 2004-01-29 | Nippon Shokubai Co Ltd | 液晶表示装置製造用粒子組成物 |
JP2007091948A (ja) * | 2005-09-29 | 2007-04-12 | Dainippon Printing Co Ltd | インクジェット用ビーズ含有インクおよびカラーフィルタの製造方法 |
-
2007
- 2007-10-05 JP JP2007261699A patent/JP2009092805A/ja active Pending
-
2008
- 2008-06-11 CN CN200880110504A patent/CN101836156A/zh active Pending
- 2008-06-11 KR KR20107006507A patent/KR20100070335A/ko not_active Application Discontinuation
- 2008-06-11 WO PCT/JP2008/061069 patent/WO2009044571A1/ja active Application Filing
- 2008-06-12 TW TW97121890A patent/TW200916537A/zh unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0711182A (ja) * | 1993-06-22 | 1995-01-13 | Citizen Watch Co Ltd | 記録液 |
JP2003082024A (ja) * | 2000-10-12 | 2003-03-19 | Seiko Epson Corp | ポリマーエマルジョンの製造方法およびそれを含んでなるインク組成物 |
JP2004029578A (ja) * | 2002-06-27 | 2004-01-29 | Nippon Shokubai Co Ltd | 液晶表示装置製造用粒子組成物 |
JP2007091948A (ja) * | 2005-09-29 | 2007-04-12 | Dainippon Printing Co Ltd | インクジェット用ビーズ含有インクおよびカラーフィルタの製造方法 |
Also Published As
Publication number | Publication date |
---|---|
CN101836156A (zh) | 2010-09-15 |
TW200916537A (en) | 2009-04-16 |
KR20100070335A (ko) | 2010-06-25 |
JP2009092805A (ja) | 2009-04-30 |
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