JP2011048362A - 改良された乳化凝集トナーのためのラテックス内への染料の超臨界流体マイクロカプセル化 - Google Patents
改良された乳化凝集トナーのためのラテックス内への染料の超臨界流体マイクロカプセル化 Download PDFInfo
- Publication number
- JP2011048362A JP2011048362A JP2010182739A JP2010182739A JP2011048362A JP 2011048362 A JP2011048362 A JP 2011048362A JP 2010182739 A JP2010182739 A JP 2010182739A JP 2010182739 A JP2010182739 A JP 2010182739A JP 2011048362 A JP2011048362 A JP 2011048362A
- Authority
- JP
- Japan
- Prior art keywords
- latex
- resin
- colorant
- particles
- toner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 239000004816 latex Substances 0.000 title claims abstract description 124
- 229920000126 latex Polymers 0.000 title claims abstract description 124
- 239000012530 fluid Substances 0.000 title claims abstract description 41
- 230000002776 aggregation Effects 0.000 title description 20
- 239000000839 emulsion Substances 0.000 title description 20
- 238000004220 aggregation Methods 0.000 title description 14
- 239000002245 particle Substances 0.000 claims abstract description 110
- 239000011347 resin Substances 0.000 claims abstract description 61
- 229920005989 resin Polymers 0.000 claims abstract description 61
- 239000003086 colorant Substances 0.000 claims abstract description 56
- 239000000203 mixture Substances 0.000 claims abstract description 53
- 238000000034 method Methods 0.000 claims abstract description 50
- 239000006185 dispersion Substances 0.000 claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 230000008569 process Effects 0.000 claims abstract description 30
- 239000004094 surface-active agent Substances 0.000 claims abstract description 19
- 239000008367 deionised water Substances 0.000 claims abstract description 14
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 14
- 239000000178 monomer Substances 0.000 claims abstract description 10
- 230000000379 polymerizing effect Effects 0.000 claims abstract description 7
- 238000005406 washing Methods 0.000 claims abstract description 6
- 239000000654 additive Substances 0.000 claims description 17
- 238000002360 preparation method Methods 0.000 abstract description 6
- 230000009931 harmful effect Effects 0.000 abstract description 3
- 239000000975 dye Substances 0.000 description 40
- 229920000642 polymer Polymers 0.000 description 22
- 239000011257 shell material Substances 0.000 description 19
- 239000001993 wax Substances 0.000 description 19
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 10
- 239000000049 pigment Substances 0.000 description 10
- 238000004581 coalescence Methods 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000005054 agglomeration Methods 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 239000002585 base Substances 0.000 description 5
- 238000007720 emulsion polymerization reaction Methods 0.000 description 5
- 230000009477 glass transition Effects 0.000 description 5
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 5
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000976 ink Substances 0.000 description 3
- 239000002563 ionic surfactant Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000003466 anti-cipated effect Effects 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 229920001400 block copolymer Polymers 0.000 description 2
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 2
- 235000013539 calcium stearate Nutrition 0.000 description 2
- 239000008116 calcium stearate Substances 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
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- 229920001577 copolymer Polymers 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000004945 emulsification Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- -1 ethylene, propylene, methanol Chemical class 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000005227 gel permeation chromatography Methods 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920001225 polyester resin Polymers 0.000 description 2
- 239000004645 polyester resin Substances 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- AZJPTIGZZTZIDR-UHFFFAOYSA-L rose bengal Chemical compound [K+].[K+].[O-]C(=O)C1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1C1=C2C=C(I)C(=O)C(I)=C2OC2=C(I)C([O-])=C(I)C=C21 AZJPTIGZZTZIDR-UHFFFAOYSA-L 0.000 description 2
- 229960003138 rose bengal sodium Drugs 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- CYUZOYPRAQASLN-UHFFFAOYSA-N 3-prop-2-enoyloxypropanoic acid Chemical compound OC(=O)CCOC(=O)C=C CYUZOYPRAQASLN-UHFFFAOYSA-N 0.000 description 1
- AMPCGOAFZFKBGH-UHFFFAOYSA-N 4-[[4-(dimethylamino)phenyl]-(4-methyliminocyclohexa-2,5-dien-1-ylidene)methyl]-n,n-dimethylaniline Chemical compound C1=CC(=NC)C=CC1=C(C=1C=CC(=CC=1)N(C)C)C1=CC=C(N(C)C)C=C1 AMPCGOAFZFKBGH-UHFFFAOYSA-N 0.000 description 1
- QPQKUYVSJWQSDY-UHFFFAOYSA-N 4-phenyldiazenylaniline Chemical compound C1=CC(N)=CC=C1N=NC1=CC=CC=C1 QPQKUYVSJWQSDY-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 229910002012 Aerosil® Inorganic materials 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- RVGRUAULSDPKGF-UHFFFAOYSA-N Poloxamer Chemical compound C1CO1.CC1CO1 RVGRUAULSDPKGF-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- VKWNTWQXVLKCSG-ZDXBJJIESA-N Sudan Red 7B Chemical compound CCNC1=CC=C2C=CC=CC2=C1\N=N\C(C=C1)=CC=C1\N=N\C1=CC=CC=C1 VKWNTWQXVLKCSG-ZDXBJJIESA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 229920005603 alternating copolymer Polymers 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 1
- TUZBYYLVVXPEMA-UHFFFAOYSA-N butyl prop-2-enoate;styrene Chemical compound C=CC1=CC=CC=C1.CCCCOC(=O)C=C TUZBYYLVVXPEMA-UHFFFAOYSA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
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- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000004815 dispersion polymer Substances 0.000 description 1
- 238000012674 dispersion polymerization Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000010556 emulsion polymerization method Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000004108 freeze drying Methods 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
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- 229920005604 random copolymer Polymers 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 238000007614 solvation Methods 0.000 description 1
- 238000000935 solvent evaporation Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- 238000012360 testing method Methods 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
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- G03G9/0804—Preparation methods whereby the components are brought together in a liquid dispersing medium
- G03G9/0806—Preparation methods whereby the components are brought together in a liquid dispersing medium whereby chemical synthesis of at least one of the toner components takes place
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Abstract
【解決手段】少なくとも1つのモノマー樹脂を重合してラテックス粒子を形成し、ラテックス粒子を脱イオン水中に分散してラテックス分散体を形成し、ラテックス分散体を少なくとも1つの染料及び界面活性剤と接触させ、超臨界流体及び水をラテックス分散体に添加してラテックス染料混合物を形成し、ラテックス染料混合物から超臨界流体を除去し、過剰の未反応着色剤をラテックス染料混合物から洗い流し、着色剤が中にカプセル化された樹脂を回収するステップを含むプロセス。
【選択図】なし
Description
形成の後、トナー粒子に、流動補助添加剤を含む外添剤粒子をブレンドすることもでき、これらの添加剤はトナー粒子の表面上に存在することができる。これらの添加剤の例としては、酸化チタン、酸化ケイ素、酸化アルミニウム、酸化セリウム、酸化すず、それらの混合物などのような金属酸化物、AEROSIL(登録商標)のようなコロイド状及び非晶質シリカ、ステアリン酸亜鉛、ステアリン酸カルシウムを含めた金属塩及び脂肪酸金属塩、又はUNILIN700のような長鎖アルコール、及びそれらの混合物が挙げられる。
Claims (4)
- 少なくとも1つのモノマー樹脂を重合してラテックス粒子を形成し、
前記ラテックス粒子を脱イオン水中に分散してラテックス分散体を形成し、
前記ラテックス分散体を少なくとも1つの染料及び界面活性剤と接触させ、
超臨界流体及び水を前記ラテックス分散体に添加してラテックス染料混合物を形成し、
前記ラテックス染料混合物から前記超臨界流体を除去し、
過剰の未反応着色剤を前記ラテックス染料混合物から洗い流し、
前記着色剤が中にカプセル化された樹脂を回収する
ステップを含むことを特徴とするプロセス。 - カプセル化された着色剤を含む前記樹脂を脱イオン水中に再分散させて樹脂/着色剤分散体を形成し、
前記樹脂/着色剤分散体を随意の添加剤と凝集させて凝集粒子を形成し、
前記凝集粒子を合体させてトナー粒子を形成し、
前記トナー粒子を回収するステップ
をさらに含むことを特徴とする、請求項1に記載のプロセス。 - 少なくとも1つのモノマー樹脂を重合してラテックス粒子を形成し、
前記ラテックス粒子を脱イオン水中に分散してラテックス分散体を形成し、
前記ラテックス分散体を少なくとも1つの染料及び界面活性剤と接触させ、
超臨界流体を前記ラテックス分散体に添加することによって、少なくとも1つの着色剤を前記ラテックス分散体の中にマイクロカプセル化して、ラテックス染料混合物を形成し、
前記ラテックス染料混合物から前記超臨界流体を除去し、
過剰の未反応着色剤を前記ラテックス染料混合物から洗い流し、
着色剤が中にカプセル化された前記樹脂を回収し、
前記カプセル化された着色剤を含む樹脂を脱イオン水中に再分散させて樹脂/着色剤分散体を形成し、
前記樹脂/着色剤分散体を随意の添加剤と凝集させて凝集粒子を形成し、
前記凝集粒子を合体させてトナー粒子を形成し、
前記トナー粒子を回収するステップ
を含むことを特徴とするプロセス。 - 少なくとも1つのモノマー樹脂と、
前記樹脂の中にマイクロカプセル化された少なくとも1つの着色剤と、
1つ又はそれ以上の随意のトナー添加剤と
を含むことを特徴とするトナー。
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US12/546,847 US7985526B2 (en) | 2009-08-25 | 2009-08-25 | Supercritical fluid microencapsulation of dye into latex for improved emulsion aggregation toner |
US12/546847 | 2009-08-25 |
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