JPH03123364A - Toner for liquid development - Google Patents
Toner for liquid developmentInfo
- Publication number
- JPH03123364A JPH03123364A JP1262607A JP26260789A JPH03123364A JP H03123364 A JPH03123364 A JP H03123364A JP 1262607 A JP1262607 A JP 1262607A JP 26260789 A JP26260789 A JP 26260789A JP H03123364 A JPH03123364 A JP H03123364A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- rays
- transferred
- acrylate
- medium
- 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.)
- Pending
Links
- 239000007788 liquid Substances 0.000 title claims description 13
- 238000011161 development Methods 0.000 title claims description 9
- 229920005989 resin Polymers 0.000 claims abstract description 26
- 239000011347 resin Substances 0.000 claims abstract description 26
- 239000000178 monomer Substances 0.000 claims abstract description 9
- 239000000049 pigment Substances 0.000 claims abstract description 8
- 239000003094 microcapsule Substances 0.000 claims description 16
- 238000012546 transfer Methods 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 239000003505 polymerization initiator Substances 0.000 claims description 8
- 238000004132 cross linking Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 238000006116 polymerization reaction Methods 0.000 claims description 2
- 239000011162 core material Substances 0.000 abstract description 5
- 239000003999 initiator Substances 0.000 abstract description 3
- 230000001678 irradiating effect Effects 0.000 abstract description 2
- 238000012856 packing Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 20
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 10
- -1 calcium lake red Chemical compound 0.000 description 9
- 238000001723 curing Methods 0.000 description 9
- 239000002245 particle Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- 239000000243 solution Substances 0.000 description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 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 4
- 229920001577 copolymer Polymers 0.000 description 4
- 125000004386 diacrylate group Chemical group 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 4
- 229920002554 vinyl polymer Polymers 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 229920000058 polyacrylate Polymers 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- MYWOJODOMFBVCB-UHFFFAOYSA-N 1,2,6-trimethylphenanthrene Chemical compound CC1=CC=C2C3=CC(C)=CC=C3C=CC2=C1C MYWOJODOMFBVCB-UHFFFAOYSA-N 0.000 description 2
- LEJBBGNFPAFPKQ-UHFFFAOYSA-N 2-(2-prop-2-enoyloxyethoxy)ethyl prop-2-enoate Chemical compound C=CC(=O)OCCOCCOC(=O)C=C LEJBBGNFPAFPKQ-UHFFFAOYSA-N 0.000 description 2
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 2
- INQDDHNZXOAFFD-UHFFFAOYSA-N 2-[2-(2-prop-2-enoyloxyethoxy)ethoxy]ethyl prop-2-enoate Chemical compound C=CC(=O)OCCOCCOCCOC(=O)C=C INQDDHNZXOAFFD-UHFFFAOYSA-N 0.000 description 2
- CNPVJWYWYZMPDS-UHFFFAOYSA-N 2-methyldecane Chemical compound CCCCCCCCC(C)C CNPVJWYWYZMPDS-UHFFFAOYSA-N 0.000 description 2
- KUDUQBURMYMBIJ-UHFFFAOYSA-N 2-prop-2-enoyloxyethyl prop-2-enoate Chemical compound C=CC(=O)OCCOC(=O)C=C KUDUQBURMYMBIJ-UHFFFAOYSA-N 0.000 description 2
- LRFVTYWOQMYALW-UHFFFAOYSA-N 9H-xanthine Chemical compound O=C1NC(=O)NC2=C1NC=N2 LRFVTYWOQMYALW-UHFFFAOYSA-N 0.000 description 2
- 238000012695 Interfacial polymerization Methods 0.000 description 2
- 239000005662 Paraffin oil Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 2
- 238000012644 addition polymerization Methods 0.000 description 2
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 2
- 150000004056 anthraquinones Chemical class 0.000 description 2
- 229920006217 cellulose acetate butyrate Polymers 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- YRZZLAGRKZIJJI-UHFFFAOYSA-N oxyvanadium phthalocyanine Chemical compound [V+2]=O.C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 YRZZLAGRKZIJJI-UHFFFAOYSA-N 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920005862 polyol Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 229920002689 polyvinyl acetate Polymers 0.000 description 2
- 239000011118 polyvinyl acetate Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- LELKUNFWANHDPG-UHFFFAOYSA-N 2-(oxiran-2-ylmethoxymethyl)oxirane;prop-2-enoic acid Chemical compound OC(=O)C=C.C1OC1COCC1CO1 LELKUNFWANHDPG-UHFFFAOYSA-N 0.000 description 1
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 description 1
- VADKRMSMGWJZCF-UHFFFAOYSA-N 2-bromophenol Chemical compound OC1=CC=CC=C1Br VADKRMSMGWJZCF-UHFFFAOYSA-N 0.000 description 1
- KMNCBSZOIQAUFX-UHFFFAOYSA-N 2-ethoxy-1,2-diphenylethanone Chemical compound C=1C=CC=CC=1C(OCC)C(=O)C1=CC=CC=C1 KMNCBSZOIQAUFX-UHFFFAOYSA-N 0.000 description 1
- BQZJOQXSCSZQPS-UHFFFAOYSA-N 2-methoxy-1,2-diphenylethanone Chemical compound C=1C=CC=CC=1C(OC)C(=O)C1=CC=CC=C1 BQZJOQXSCSZQPS-UHFFFAOYSA-N 0.000 description 1
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 description 1
- GNSFRPWPOGYVLO-UHFFFAOYSA-N 3-hydroxypropyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCCO GNSFRPWPOGYVLO-UHFFFAOYSA-N 0.000 description 1
- IICCLYANAQEHCI-UHFFFAOYSA-N 4,5,6,7-tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodospiro[2-benzofuran-3,9'-xanthene]-1-one Chemical compound O1C(=O)C(C(=C(Cl)C(Cl)=C2Cl)Cl)=C2C21C1=CC(I)=C(O)C(I)=C1OC1=C(I)C(O)=C(I)C=C21 IICCLYANAQEHCI-UHFFFAOYSA-N 0.000 description 1
- 244000215068 Acacia senegal Species 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- SGHZXLIDFTYFHQ-UHFFFAOYSA-L Brilliant Blue Chemical compound [Na+].[Na+].C=1C=C(C(=C2C=CC(C=C2)=[N+](CC)CC=2C=C(C=CC=2)S([O-])(=O)=O)C=2C(=CC=CC=2)S([O-])(=O)=O)C=CC=1N(CC)CC1=CC=CC(S([O-])(=O)=O)=C1 SGHZXLIDFTYFHQ-UHFFFAOYSA-L 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 1
- 229920008347 Cellulose acetate propionate Polymers 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000001856 Ethyl cellulose Substances 0.000 description 1
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 229920000084 Gum arabic Polymers 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 1
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- CNCOEDDPFOAUMB-UHFFFAOYSA-N N-Methylolacrylamide Chemical compound OCNC(=O)C=C CNCOEDDPFOAUMB-UHFFFAOYSA-N 0.000 description 1
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 229920002396 Polyurea Polymers 0.000 description 1
- NRCMAYZCPIVABH-UHFFFAOYSA-N Quinacridone Chemical compound N1C2=CC=CC=C2C(=O)C2=C1C=C1C(=O)C3=CC=CC=C3NC1=C2 NRCMAYZCPIVABH-UHFFFAOYSA-N 0.000 description 1
- 229920001800 Shellac Polymers 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 description 1
- 238000003848 UV Light-Curing Methods 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 description 1
- XRMBQHTWUBGQDN-UHFFFAOYSA-N [2-[2,2-bis(prop-2-enoyloxymethyl)butoxymethyl]-2-(prop-2-enoyloxymethyl)butyl] prop-2-enoate Chemical compound C=CC(=O)OCC(COC(=O)C=C)(CC)COCC(CC)(COC(=O)C=C)COC(=O)C=C XRMBQHTWUBGQDN-UHFFFAOYSA-N 0.000 description 1
- 239000000205 acacia gum Substances 0.000 description 1
- 235000010489 acacia gum Nutrition 0.000 description 1
- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000000987 azo dye Substances 0.000 description 1
- 125000000751 azo group Chemical group [*]N=N[*] 0.000 description 1
- GCTPMLUUWLLESL-UHFFFAOYSA-N benzyl prop-2-enoate Chemical compound C=CC(=O)OCC1=CC=CC=C1 GCTPMLUUWLLESL-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
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- KBLWLMPSVYBVDK-UHFFFAOYSA-N cyclohexyl prop-2-enoate Chemical compound C=CC(=O)OC1CCCCC1 KBLWLMPSVYBVDK-UHFFFAOYSA-N 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- PPSZHCXTGRHULJ-UHFFFAOYSA-N dioxazine Chemical compound O1ON=CC=C1 PPSZHCXTGRHULJ-UHFFFAOYSA-N 0.000 description 1
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- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 1
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- 238000001694 spray drying Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 125000000101 thioether group Chemical group 0.000 description 1
- 150000003573 thiols Chemical class 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- AAAQKTZKLRYKHR-UHFFFAOYSA-N triphenylmethane Chemical compound C1=CC=CC=C1C(C=1C=CC=CC=1)C1=CC=CC=C1 AAAQKTZKLRYKHR-UHFFFAOYSA-N 0.000 description 1
- KJPJZBYFYBYKPK-UHFFFAOYSA-N vat yellow 1 Chemical compound C12=CC=CC=C2C(=O)C2=CC=C3N=C4C5=CC=CC=C5C(=O)C5=C4C4=C3C2=C1N=C4C=C5 KJPJZBYFYBYKPK-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 229940075420 xanthine Drugs 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Landscapes
- Liquid Developers In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野J
本発明は一般に電子写真方式の液体現像を用いる印写装
置に供する液体現像用トナーに関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application J] The present invention generally relates to a toner for liquid development used in printing apparatuses using electrophotographic liquid development.
更に詳しくは光電気泳動を利用した画像記録装【従来の
技術1
一般に光電気泳動式画像形成方法といわれる方法の広範
囲にわたる詳しい説明は、時開1?l38−22645
(ランクゼロックス社出願)、特公昭43−2178
1 (ゼロックス社出願)或は、米国特許第33839
93号、第3384488号、第3384565号、第
3384566号(ゼロックス社出願)に記載されてい
る。For more details, see Image Recording Device Using Photoelectrophoresis [Prior Art 1] For a comprehensive and detailed explanation of what is generally called a photoelectrophoretic image forming method, please refer to the following article. l38-22645
(Applied by Rank Xerox), Japanese Patent Publication No. 43-2178
1 (Xerox Corporation application) or U.S. Patent No. 33839
No. 93, No. 3384488, No. 3384565, and No. 3384566 (filed by Xerox Corporation).
すなわち一般的にトナーによる現像方法を説明すると、
主要構成部分は光導電性トナーと一対の電極からなり、
光導電性トナーは電極間にあって、有機溶媒中に分散し
ている。暗所の有機溶媒中においては光導電性トナーは
絶縁性物質であり比較的容易に帯電する。そこで電極間
に電界をかけると、光導電性トナーはトナーに帯電して
いる極性と反対極性の電極の方に電気泳動して引きつけ
られる。そこで潜像に露光すると、露光部の光導電性ト
ナーは、導電性となり静電付着している電極との電極反
応により電荷を供与或は付与され反対電極へ電気泳動し
、もとの電極にはポジ像が形成される。In other words, if we explain the developing method using toner in general,
The main components consist of photoconductive toner and a pair of electrodes.
A photoconductive toner is located between the electrodes and is dispersed in an organic solvent. In an organic solvent in a dark place, the photoconductive toner is an insulating substance and is relatively easily charged. When an electric field is applied between the electrodes, the photoconductive toner is electrophoretically attracted to the electrode with the opposite polarity to that charged on the toner. When exposed to the latent image, the photoconductive toner in the exposed area becomes conductive and is given or given a charge by an electrode reaction with the electrostatically attached electrode, electrophoresing to the opposite electrode and returning to the original electrode. A positive image is formed.
[発明が解決しようとする課M1
上記、従来の光電気泳動法を用いた画像記録方法におい
ては逆t4極に転位したトナーを直接、加熱溶融させて
コピーを作成する場合(Electrofax方式)と
付着したトナーを紙に転写して加熱溶融させる場合CX
erox方式)がある。[Problem to be solved by the invention M1 As mentioned above, in the image recording method using the conventional photoelectrophoresis method, when the toner that has been rearranged to the inverted t4 pole is directly heated and melted to make a copy (Electrofax method) and the adhesion When transferring the toner onto paper and heating and melting it, CX
erox method).
このような技術に用いられるトナーの定着は加熱融着或
はキャリアの加熱除去によるトナーの接着によって行わ
れる。The fixing of the toner used in such technology is carried out by adhesion of the toner by heat fusing or heat removal of the carrier.
しかし例えば上記の様な方式を用いた印刷製版、印刷ス
クリーン、及びプリンタ・複写機へ応用をする場合は光
導電性トナーの接着性に問題がある。However, when applied to printing plates, printing screens, printers, and copying machines using the above-mentioned method, for example, there is a problem with the adhesiveness of the photoconductive toner.
つまり、いずれの場合にしても光導電性トナー自体には
定着成分がない為に定着させようとすると大量の物理的
エネルギーを与えなければならない。That is, in any case, since the photoconductive toner itself does not have a fixing component, a large amount of physical energy must be applied to fix it.
また、強い力学的エネルギーすなわち圧力などで非転写
紙に染みこましてやらなければならず精密な画像・文字
を必要とする印刷製版、印刷スクリーン、プリンタ・複
写機として従来の光導電性トナーは接着性に間開があっ
た。In addition, conventional photoconductive toners are used in printing plates, printing screens, printers, and copiers that require precise images and characters because they must be soaked into non-transfer paper using strong mechanical energy, i.e., pressure. There was a gap.
そこで本発明の目的とするところは、光導電性トナーの
被転写媒体への接着性を増大させることにある。Therefore, it is an object of the present invention to increase the adhesion of photoconductive toner to a transfer medium.
[課題を解決するための手段1
本発明による液体現像用トナーは、少なくとも、顔料、
重合性モノマーまたは紫外線架橋する樹脂及び重合開始
剤をマイクロカプセル化し、被転写媒体上に該マイクロ
カプセルを転写した後に紫外線照射を行い、該マイクロ
カプセルの芯物質に重合あるいは架橋反応をさせること
を特徴とする。[Means for Solving the Problems 1] The liquid developing toner according to the present invention includes at least a pigment,
It is characterized by microcapsulating a polymerizable monomer or an ultraviolet crosslinking resin and a polymerization initiator, and irradiating ultraviolet light after transferring the microcapsules onto a transfer medium to cause the core substance of the microcapsules to undergo a polymerization or crosslinking reaction. shall be.
また光電気泳動を利用した画像記録装置に供する事を特
徴とする。Further, it is characterized in that it can be applied to an image recording device using photoelectrophoresis.
[作用]
本発明の上記構成による作用を説明する。第1図は本発
明の現像液の主要構成要素である。図中11は光導電性
トナーであり、12はビニール基等を一つ以上含む重合
性モノマーまたは紫外線架橋する樹脂(以後、紫外線硬
化樹脂と呼称する)及び重合開始剤を含むマイクロカプ
セルの芯物質である。また13はマイクロカプセルの壁
膜である。通常光電気泳動を利用した像形成方法の現像
液は常温において液体状である絶縁性溶媒、例えばノー
マルパラフィン系のオイル及び光導電性を示すトナー(
以下、 トナーと呼称する)がつかわれている。[Operation] The operation of the above configuration of the present invention will be explained. FIG. 1 shows the main components of the developer of the present invention. In the figure, 11 is a photoconductive toner, and 12 is a core material of microcapsules containing a polymerizable monomer containing one or more vinyl groups or a resin crosslinked by ultraviolet rays (hereinafter referred to as an ultraviolet curable resin) and a polymerization initiator. It is. Further, 13 is the wall membrane of the microcapsule. The developing solution for an image forming method using photoelectrophoresis is usually an insulating solvent that is liquid at room temperature, such as normal paraffin oil, and a toner that exhibits photoconductivity (
(hereinafter referred to as toner) is used.
通常光電気泳動を利用した像形成方法の現像液は常温に
おいて液体状である絶縁性溶媒、例えばノーマルパラフ
ィン系のオイル及び光導電性を示すトナー(以下、 ト
ナーと呼称する)が使われている。The developing solution for image forming methods using photoelectrophoresis usually uses an insulating solvent that is liquid at room temperature, such as normal paraffin oil, and a toner that exhibits photoconductivity (hereinafter referred to as toner). .
これに対し、本発明においては、絶縁性溶媒中に紫外線
硬化樹脂及び重合開始剤及び光導電性を示すトナーがマ
イクロカプセルとして分散されている。 (以下マイク
ロカプセル化物と呼称する)本発明の液体現像用トナー
を用いての現像時においては通常の液体現像の方法と全
く同様に被転写媒体上にトナーを転写することができる
。ここでの作用の違いを述べると、従来の現像液を用い
て現像処理を行った場合、被転写媒体への接着効果を高
める為には熱や圧力等の物理的定着を必要とした。In contrast, in the present invention, an ultraviolet curable resin, a polymerization initiator, and a toner exhibiting photoconductivity are dispersed as microcapsules in an insulating solvent. During development using the liquid developing toner of the present invention (hereinafter referred to as a microcapsule), the toner can be transferred onto a transfer medium in exactly the same manner as a normal liquid developing method. The difference in function here is that when development is performed using a conventional developer, physical fixing such as heat or pressure is required to enhance the adhesion effect to the transfer medium.
本発明においては転写が完了した時に、マイクロカプセ
ル化物に多少の圧力を加える事により、マイクロカプセ
ル化物中の紫外線硬化樹脂及び重合開始剤が被転写媒体
上に露出し、紫外線を照射するとトナーの硬化反応が始
まる。トナーの硬化反応は、被転写媒体の内部にしみこ
んだ紫外線硬化樹脂を含んで進むのでトナーと被転写媒
体があたかも架橋反応を起こして接着強度が高まった様
になる。In the present invention, when the transfer is completed, by applying some pressure to the microcapsule, the ultraviolet curing resin and polymerization initiator in the microcapsule are exposed on the transfer medium, and when the toner is irradiated with ultraviolet rays, the toner is cured. The reaction begins. Since the curing reaction of the toner proceeds while the ultraviolet curable resin has penetrated into the transfer medium, it is as if the toner and the transfer medium have undergone a crosslinking reaction and the adhesive strength has increased.
また、−回トナーの硬化反応が始まるとトナーの硬化反
応は絶縁性溶媒を紫外線硬化樹脂が包み込む様な形で連
鎖反応適に高まるので、従来の様に被転写媒体上の絶縁
性溶媒を完全に揮発させるまで乾燥時間を延ばす必要が
ない。In addition, once the curing reaction of the toner begins, the curing reaction of the toner increases as a chain reaction in such a way that the insulating solvent is surrounded by the ultraviolet curing resin. There is no need to extend the drying time until it evaporates.
つまり本発明は、マイクロカプセル化物の紫外線硬化樹
脂がトナーと被転写紙の接着強度をあげ更には、乾燥工
程の省略による印字速度の向上が可能となる。In other words, in the present invention, the ultraviolet curing resin of the microcapsules increases the adhesive strength between the toner and the transfer paper, and furthermore, it is possible to improve the printing speed by omitting the drying step.
(実施例1
まず本発明に用いることができる現像液について具体的
に説明する。本発明に用いることができる光導電性トナ
ー粒子には例えば、銅フタロシアニン等のフタロシアニ
ン系顔料、ビスイミドールペリレン系顔料、フラバント
レン等のアントラキノン系顔料、カルシウムレーキレッ
ド、ダイアナブル−ナフトールレッド等のアゾ系染料、
キナクリドン系顔料、ジオキサジン系顔料等を用いるこ
とができる。また酸化亜鉛、酸化チタン等の無機系の光
導電性物質と、フルオレセイン、ローズベンガル、ブロ
モフラビン、マラカイトグリーン、メチレンブルー エ
オシン、エリスロシン、ローダミンB1 ブロモフェ
ノール、
ブリリアントブルー フロキシン、クリスタルバイオン
ット、キサンチン系、フタレイン系、 トリフェニルメ
タン系、アゾ系、アントラキノン系等の染料との組合せ
、或は単独で使用する事もできる。また各種特性をもた
せるために表面改質等を行うことが出来る。(Example 1 First, a developer that can be used in the present invention will be specifically explained. Photoconductive toner particles that can be used in the present invention include, for example, phthalocyanine pigments such as copper phthalocyanine, bisimidole perylene pigments, etc.) , anthraquinone pigments such as flavanthrene, azo dyes such as calcium lake red, Diana blue-naphthol red,
Quinacridone pigments, dioxazine pigments, etc. can be used. In addition, inorganic photoconductive substances such as zinc oxide and titanium oxide, fluorescein, rose bengal, bromoflavin, malachite green, methylene blue, eosin, erythrosin, rhodamine B1, bromophenol, brilliant blue, phloxine, crystal biont, xanthine, and phthalein. It can also be used alone or in combination with dyes such as triphenylmethane, azo, and anthraquinone. In addition, surface modification etc. can be performed to impart various properties.
紫外線硬化用のビヒクル樹脂としては、不飽和ポリマー
例えば、アクリルポリマー ポリ塩化ビニル、塩素化ポ
リブタジェンなどの樹脂とアクリルモノマーなどの多官
能性ビニル千ツマ−に溶解した物やあるいはアセチレン
不飽和基、ビニルチオエーテル基、ノルボニル基などを
樹脂にグラフト化した樹脂等が挙げられる。この他のビ
ヒクル樹脂の例としては、主鎖に不飽和結合を持つプレ
ポリマー あるいは側鎖や末端に活性不飽和基を持つプ
レポリマーが挙げられる。前者の例としては、無水マレ
イン酸型不飽和ポリスチレンとスチレンの系であり、あ
るいはシリコン変性、ウレタン変性、アクリルウレタン
変性など、またはマレイン基が導入されたポリエステル
、アクリル樹脂、エポキシ樹脂が挙げられる。後者の例
としては、活性基を幹ポリマーの末端または側鎖に持つ
もので例えばアクリロイル基を1分子中に2個以上有す
るアクリルエステル系プレポリマーなとである。Vehicle resins for UV curing include unsaturated polymers such as acrylic polymers, polyvinyl chloride, chlorinated polybutadiene, and other resins dissolved in polyfunctional vinyl such as acrylic monomers, or acetylene unsaturated groups, vinyl Examples include resins in which thioether groups, norbornyl groups, etc. are grafted onto resins. Examples of other vehicle resins include prepolymers with unsaturated bonds in the main chain or prepolymers with active unsaturated groups in side chains or terminals. Examples of the former include a system of maleic anhydride type unsaturated polystyrene and styrene, silicone-modified, urethane-modified, acrylic urethane-modified, etc., or polyester, acrylic resin, and epoxy resin into which a maleic group is introduced. An example of the latter is one having an active group at the end or side chain of the main polymer, such as an acrylic ester prepolymer having two or more acryloyl groups in one molecule.
この他仁は、付加重合型樹脂、例えばチオール/ポリエ
ン系や光開環型樹脂、例えばエポキシ樹脂の開環反応を
利用するものである。Other methods utilize the ring-opening reaction of addition polymerization type resins, such as thiol/polyene type resins, and photo-opening type resins, such as epoxy resins.
また、最も本発明を効果的に応用できるものとして紫外
線硬化インキビヒクルには付加重合性のモノマー プレ
ポリマー類と光重合開始剤、感光剤との組合せが効果的
であり、特にアクリル酸を主体とし、メタクリル鮫、イ
タコン酸なとも含むアクリル系モノマー プレポリマー
が有効である。In addition, the most effective way to apply the present invention is to use a combination of addition-polymerizable monomers, prepolymers, photopolymerization initiators, and photosensitizers for ultraviolet curing ink vehicles, especially those containing acrylic acid as the main component. Acrylic monomer prepolymers containing methacrylate, itaconic acid, and itaconic acid are effective.
アクリル系プレポリマーの例としては、ポリオールアク
リレート、ポリエステルアクリレート、エポキシアクリ
レート、ウレタンアクリレート、ポリエーテルアクリレ
ート、アクリレートアルキッド、ポリアセタールアクリ
レート、シリコンアクリレート、メラミンアクリレート
、その他の7クリレートまた代表的なプレポリマーとし
ては、ポリオールアクリレートとして、ペンタエリスリ
トールトリアクリレート、ペンタエリスリトールテトラ
アクリレート、ジベンタエリスリトールンへキサアクロ
レート、ジトリメチロールプロパンテトラアクリレート
、またエポキシアクリレートとして、ビスフェノールA
グリシジルエーテルアクリレート、変性ビスフェノール
Aエポキシアクリレート、エポキシ化乾性油アクリレー
ト、アリファティツクエボキシアクリレート等が挙げら
れ、ウレタンアクリエートとして、ポリアクリレートカ
ーバメイト、ヘキサンジオールTD工及び2−とドロキ
シエチルアクリレートの反応物などが挙げられる。また
プレポリマーとともに架橋、及び付加重合反応として反
応性モノマーの添加が好ましい。Examples of acrylic prepolymers include polyol acrylate, polyester acrylate, epoxy acrylate, urethane acrylate, polyether acrylate, acrylate alkyd, polyacetal acrylate, silicone acrylate, melamine acrylate, and other 7 acrylates. Typical prepolymers include: Polyol acrylates include pentaerythritol triacrylate, pentaerythritol tetraacrylate, diventaerythritol hexaacrylate, ditrimethylolpropane tetraacrylate, and epoxy acrylates include bisphenol A
Examples include glycidyl ether acrylate, modified bisphenol A epoxy acrylate, epoxidized drying oil acrylate, aliphatic eboxy acrylate, etc. Urethane acrylates include polyacrylate carbamate, hexanediol TD, and reaction products of 2- and droxyethyl acrylate. Examples include. Further, it is preferable to add a reactive monomer together with the prepolymer for crosslinking and addition polymerization reactions.
例として、シクロへキシルアクリレート、ベンジルアク
リレート、カルピトールアクリレート、2−エチルへキ
シルアクリレート、2−ヒドロキシエチルメタアクルレ
ート、2−ヒドロキシグロビルアクリレート、ヒドロキ
シプロピルメタアクリレート、N−メチロールアクリル
アミド、N−ジアセトンアクリルアミド、スチレン、ビ
ニルアセテート、N−ビニルピロリドン、エチレングリ
コールジアクリレート、ジエチレングリコールジアクリ
レート、 トリエチレングリコールジアクリレート、ポ
リエチレングリコールジアクリレート、ブチレンゲルコ
ールジアクリレート、ネオペンチルゲルコールジアクリ
レート、1. 4−ブタジオールジアクリレート、1,
6−ヘキサンジオールジアクリレート、 トリメチロー
ルプロパントリアクリレート等が挙げられる。本発明に
用いる紫外線硬化樹脂は以上の樹脂から単独または組み
合わせた形でもちいる。この他事発明には重合開始剤を
併用する。一般にラジカル型及び水素引き抜き型が利用
できる。例えばベンゾインエチルイソブチルベンゾイン
エーテル、ベンゾインエチルエーテル、ベンゾインメチ
ルエーテル等である。Examples include cyclohexyl acrylate, benzyl acrylate, carpitol acrylate, 2-ethylhexyl acrylate, 2-hydroxyethyl methacrylate, 2-hydroxyglobyl acrylate, hydroxypropyl methacrylate, N-methylol acrylamide, N-di Acetone acrylamide, styrene, vinyl acetate, N-vinylpyrrolidone, ethylene glycol diacrylate, diethylene glycol diacrylate, triethylene glycol diacrylate, polyethylene glycol diacrylate, butylene gelkol diacrylate, neopentyl gelkol diacrylate, 1. 4-butadiol diacrylate, 1,
Examples include 6-hexanediol diacrylate and trimethylolpropane triacrylate. The ultraviolet curable resin used in the present invention may be selected from the above resins alone or in combination. A polymerization initiator is also used in this invention. Generally, radical type and hydrogen abstraction type can be used. Examples include benzoin ethyl isobutyl benzoin ether, benzoin ethyl ether, benzoin methyl ether, and the like.
また、上記した紫外線硬化樹脂、重合開始樹脂及びトナ
ーをマイクロカプセル化する際のマイクロカプセル化方
法は、コアセルベーション法、1n−situ法、界面
重合法、相分離法、液中硬化被覆法、噴霧乾燥法、オレ
ンイス法等であり、−a的に、壁膜剤の選択はマイクロ
カプセルの芯物質である紫外線硬化樹脂及び重合開始剤
の性質及びカプセル化特性の諸条件に合わせて行う。Further, the microencapsulation method for microencapsulating the above-mentioned ultraviolet curable resin, polymerization initiator resin, and toner includes a coacervation method, an 1n-situ method, an interfacial polymerization method, a phase separation method, an in-liquid curing coating method, A spray drying method, an Orenis method, etc. are used, and the selection of the wall coating agent is carried out depending on the properties of the ultraviolet curable resin and the polymerization initiator, which are the core materials of the microcapsules, and the encapsulation characteristics.
マイクロカプセルの壁膜材としてはすべての物質が対象
となるが好ましい例を挙げると、ポリ酢酸ビニル、ポリ
酢酸ビニル/セルロースアセテートブチレート、スチレ
ン−マレイン酸共重合体、ベンジルスルホース、エチル
セルロース、ポリエチレン、ポリスチレン、天然ゴム、
ニトロセルロース、ケトン樹脂、ポリメチルメタクリレ
ート、ポリアミドレジン、アクリロニトワルースチレン
共重合体、塩化ビニリデン−アクリロニトリル共重合体
、エポキシ樹脂、ポリビニルホルマール、ヒドロキシプ
ロピルセルロース、塩化ビニル−酢酸ビニル共重合体、
ポリ塩化ビニル、セラック、塩化ビニル−酢酸ビニル共
重合体、ポリエステル、ポリカーボネート、ポリアクリ
ル酸エステル、酢酸プロピオン酸セルロース、酢酸ブチ
ル酸セルロース、ポリビニルピロリドン、塩化ビニル酢
酸ブチル共重合体、ヒドロキシグロビルメチルセルロー
スフタレレート、ポリウレタン、ポリウレア、ゼラチン
、ワックス類、多糖顛などが挙げられる。All substances can be used as wall materials for microcapsules, but preferred examples include polyvinyl acetate, polyvinyl acetate/cellulose acetate butyrate, styrene-maleic acid copolymer, benzyl sulfose, ethyl cellulose, and polyethylene. , polystyrene, natural rubber,
Nitrocellulose, ketone resin, polymethyl methacrylate, polyamide resin, acrylonitrostyrene copolymer, vinylidene chloride-acrylonitrile copolymer, epoxy resin, polyvinyl formal, hydroxypropyl cellulose, vinyl chloride-vinyl acetate copolymer,
Polyvinyl chloride, shellac, vinyl chloride-vinyl acetate copolymer, polyester, polycarbonate, polyacrylate ester, cellulose acetate propionate, cellulose acetate butyrate, polyvinylpyrrolidone, vinyl chloride butyl acetate copolymer, hydroxyglobil methylcellulose lid Examples include polyester, polyurethane, polyurea, gelatin, waxes, and polysaccharide resin.
また光導電性画像形成粒子の熱可塑性物質中の分散性及
び帯電特性の均一性の為に、適当な荷電調整剤・分散剤
等を現像液に含有することもできる。Further, in order to improve the dispersibility of the photoconductive image-forming particles in the thermoplastic material and the uniformity of charging characteristics, a suitable charge control agent, dispersant, etc. may be included in the developer solution.
次に本発明のマイクロカプセル化物は界面重合法を用い
て次のように作製した。Next, the microencapsulated product of the present invention was produced using an interfacial polymerization method as follows.
1、暗室中において、ビスフェノールA系のプレポリマ
ーを5g1 ビニル系モノマー(ペンタエリスリトール
テトラアクリレート)25g、光重合開始剤0.1g及
びバナジルフタロシアニン(コダック社製)5gを添加
しホットプレート(60”c)上で加熱分散する。1. In a dark room, add 5 g of bisphenol A prepolymer, 25 g of vinyl monomer (pentaerythritol tetraacrylate), 0.1 g of photopolymerization initiator, and 5 g of vanadyl phthalocyanine (manufactured by Kodak), and place on a hot plate (60"c). ).
2、次に別の反応系におき、乳化安定剤としアラビアゴ
ム5%水溶液を100gをはかりとり硬化剤5gをホッ
トプレート上で温める。2. Next, place in another reaction system, weigh out 100 g of a 5% aqueous solution of gum arabic as an emulsion stabilizer, and heat 5 g of the curing agent on a hot plate.
上記1の工程で製造した溶液に上記2で調整した溶液を
徐々にホモミキサーで撹拌しながら添加し乳化させる。The solution prepared in step 2 above is gradually added to the solution prepared in step 1 above while stirring with a homomixer, and emulsified.
乳化物の平均流径が2〜3μmとなった時にホモミキサ
ーを通常の撹拌装置に替えマイクロカプセルを製造する
。When the average flow diameter of the emulsion reaches 2 to 3 μm, the homomixer is replaced with a normal stirring device to produce microcapsules.
現像液は次のように調整した。次に作製したマイクロカ
プセルを噴霧乾燥させて完全に水分を取り除き、飽和炭
化水素系オイル(アイソパーGエクソン化学)に再分散
し現像液を得た。The developer was prepared as follows. Next, the prepared microcapsules were spray-dried to completely remove water, and then redispersed in saturated hydrocarbon oil (Isopar G Exxon Chemical) to obtain a developer.
次に本発明の比較例に用いた現像液の組成を示す。下記
の混合物40gをサンプルビンに採りガラスピーズを1
10gいれてペイントシェーカーで10時間分散させる
た徨、最大粒径1μ以下の光導電製画像形成粒子を含む
現像液を調整した。Next, the composition of the developer used in a comparative example of the present invention will be shown. Take 40g of the following mixture into a sample bottle and add 1 glass pea.
A developing solution containing photoconductive image forming particles having a maximum particle size of 1 μm or less was prepared by dispersing 10 g of the sample in a paint shaker for 10 hours.
組成
バナジルフタロシアニン 2wt%(コダック社製
)
ツルスパース17000 0.2wt%(ICI社製)
アイソパーG
(エクソン化学社製) 97.8wt%本発明に
よる現像液及び比較例に示した組成の現像液を用いて、
第2図に示した簡易実験系で現像実験を行った。Composition Vanadyl phthalocyanine 2wt% (manufactured by Kodak) Tsurusperse 17000 0.2wt% (manufactured by ICI) Isopar G (manufactured by Exxon Chemical Co., Ltd.) 97.8wt% A developer according to the present invention and a developer having the composition shown in the comparative example were used. hand,
A development experiment was conducted using the simple experimental system shown in FIG.
まず本実施例は暗室において、本発明による現像液をい
れたビーカー25に電界をかけて透明電極上21にトナ
ーを付着させる。この際実施例の光導電性トナーはマイ
ナス電荷を持フている。簡易実験系では牒厚2 m m
のポリイミドスペサー22を介して画像形成粒子受取電
極23を固定しである。また23は後に述べる評価の為
に被転写紙への転写物の転写性を向上させるために表面
にシリコンゴムを貼った画像形成粒子受取電極である。First, in this embodiment, an electric field is applied to a beaker 25 containing a developer according to the present invention in a dark room to cause toner to adhere to a transparent electrode 21. At this time, the photoconductive toner of the embodiment has a negative charge. In a simple experimental system, the thickness of the plate is 2 mm.
An image forming particle receiving electrode 23 is fixed via a polyimide spacer 22. Reference numeral 23 denotes an image-forming particle receiving electrode with silicone rubber pasted on its surface in order to improve the transferability of the transferred material to the transfer paper for evaluation described later.
23の電極には電源26のプラスが接続されている。こ
の簡易実験系でそれぞれの電極間に2000vの電圧を
かけると同時に透明電極21側から露光光27の照射を
2秒問行い画像を形成させた。The positive terminal of a power source 26 is connected to the electrode 23. In this simple experimental system, a voltage of 2000 V was applied between each electrode, and at the same time exposure light 27 was irradiated from the transparent electrode 21 side for 2 seconds to form an image.
次いで比較例についても本実施例の現像方法と同様に現
像を行い画像形成粒子受取電極に画像を形成させた。Next, for the comparative example, development was performed in the same manner as in the present example to form an image on the image forming particle receiving electrode.
次ぎに簡易実験系から本発明による現像液を用いて現像
を行った画像形成粒子受取電極及び比較例により現像を
行った画像形成粒子受取電極を取り出し、それぞれの電
極をコピー紙に圧力転写し実施例においては紫外線照射
を5秒行った。また比較例においてはホットプレート上
に10秒放置し定着させた後、こすり試験機で押力をか
け、実施例及び比較例の接着強度を比較した。Next, an image forming particle receiving electrode developed using the developer according to the present invention and an image forming particle receiving electrode developed according to a comparative example were taken out from the simple experiment system, and the respective electrodes were pressure-transferred onto copy paper. In the example, ultraviolet irradiation was performed for 5 seconds. Further, in the comparative example, after being left on a hot plate for 10 seconds to fix, pressing force was applied using a rubbing tester to compare the adhesive strength of the example and the comparative example.
結果は本発明の液体現像用トナーを用いて作製した転写
物は紫外線を照射した場合100gの押圧まで剥離しな
かった。比較例においては20gの押圧で剥離した。こ
の他比較例において、転写物が乾燥し、剥離試験の強度
が最高値を示すまでの加熱時間は100秒であり、30
gの押圧で剥離した。As a result, the transfer material prepared using the liquid developing toner of the present invention did not peel off even under a pressure of 100 g when irradiated with ultraviolet rays. In the comparative example, it was peeled off with a pressure of 20 g. In addition, in Comparative Examples, the heating time until the transfer material dries and the strength in the peel test shows the highest value is 100 seconds, and 30 seconds.
It was peeled off with a pressure of g.
]発明の効果1
以上述べてきたように、本発明によれば、光電気泳動法
を用いた画像形成方法において、現像液中に紫外線硬化
樹脂を濠加し紫外線照射を行った為に被転写媒体上での
トナーの接着強度を高めることができた。また実施例に
も示した通り従来の方式の場合、転写物の被転写媒体へ
の接着力を向上させる場合100秒の定着時間が必要で
ありしかも押圧は30g以下であった。] Effect of the invention 1 As described above, according to the present invention, in an image forming method using photoelectrophoresis, since an ultraviolet curable resin is added to the developer and irradiated with ultraviolet rays, It was possible to increase the adhesion strength of the toner on the medium. Further, as shown in the examples, in the case of the conventional method, a fixing time of 100 seconds was required to improve the adhesion of the transferred material to the transfer medium, and the pressing force was 30 g or less.
以上の事より、本発明の効果は、定着時間が短くしかも
定着強度が高い液体現像用のトナーが供給できることで
ある。From the above, the effect of the present invention is that it is possible to supply a toner for liquid development that has a short fixing time and high fixing strength.
第1図は、本発明の現像液の構成を示す概略図。 第2図は実験例を示す概略図。 以 上 FIG. 1 is a schematic diagram showing the structure of the developer of the present invention. FIG. 2 is a schematic diagram showing an experimental example. that's all
Claims (2)
架橋する樹脂及び重合開始剤をマイクロカプセル化し、
被転写媒体上に該マイクロカプセルを転写した後に紫外
線照射を行い、該マイクロカプセルの芯物質に重合ある
いは架橋反応をさせることを特徴とする液体現像用トナ
ー。(1) Microcapsule at least a pigment, a polymerizable monomer or a UV crosslinking resin, and a polymerization initiator,
A toner for liquid development, characterized in that after the microcapsules are transferred onto a transfer medium, ultraviolet rays are irradiated to cause the core substance of the microcapsules to undergo a polymerization or crosslinking reaction.
特徴とした請求項1記載の液体現像用トナー。(2) The liquid developing toner according to claim 1, characterized in that it is used in an image recording device that utilizes photoelectrophoresis.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1262607A JPH03123364A (en) | 1989-10-07 | 1989-10-07 | Toner for liquid development |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1262607A JPH03123364A (en) | 1989-10-07 | 1989-10-07 | Toner for liquid development |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH03123364A true JPH03123364A (en) | 1991-05-27 |
Family
ID=17378140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1262607A Pending JPH03123364A (en) | 1989-10-07 | 1989-10-07 | Toner for liquid development |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH03123364A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6912370B2 (en) * | 2000-11-30 | 2005-06-28 | Ricoh Company, Ltd. | Dual sided image printing device and method |
EP1607799A1 (en) * | 2004-06-14 | 2005-12-21 | Ricoh Co., Ltd. | Liquid developer and image forming process and image forming apparatus using same |
JP2016040576A (en) * | 2014-08-12 | 2016-03-24 | 富士ゼロックス株式会社 | Toner, liquid developer, developer, developer cartridge, process cartridge, and image forming apparatus |
-
1989
- 1989-10-07 JP JP1262607A patent/JPH03123364A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6912370B2 (en) * | 2000-11-30 | 2005-06-28 | Ricoh Company, Ltd. | Dual sided image printing device and method |
EP1607799A1 (en) * | 2004-06-14 | 2005-12-21 | Ricoh Co., Ltd. | Liquid developer and image forming process and image forming apparatus using same |
US7351511B2 (en) | 2004-06-14 | 2008-04-01 | Ricoh Company, Ltd. | Liquid developer and image forming apparatus using same |
JP2016040576A (en) * | 2014-08-12 | 2016-03-24 | 富士ゼロックス株式会社 | Toner, liquid developer, developer, developer cartridge, process cartridge, and image forming apparatus |
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