JPH03103862A - Magnetic toner - Google Patents
Magnetic tonerInfo
- Publication number
- JPH03103862A JPH03103862A JP1240839A JP24083989A JPH03103862A JP H03103862 A JPH03103862 A JP H03103862A JP 1240839 A JP1240839 A JP 1240839A JP 24083989 A JP24083989 A JP 24083989A JP H03103862 A JPH03103862 A JP H03103862A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- charge control
- resin
- good
- magnetic
- 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
- 229920000548 poly(silane) polymer Polymers 0.000 claims abstract description 13
- 239000000696 magnetic material Substances 0.000 claims abstract description 11
- 239000000178 monomer Substances 0.000 claims abstract description 9
- 229920000642 polymer Polymers 0.000 claims abstract description 5
- 150000001875 compounds Chemical class 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 34
- 229920005989 resin Polymers 0.000 abstract description 27
- 239000011347 resin Substances 0.000 abstract description 27
- 125000003118 aryl group Chemical group 0.000 abstract description 4
- 125000003545 alkoxy group Chemical group 0.000 abstract description 2
- 125000000217 alkyl group Chemical group 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 2
- 238000000034 method Methods 0.000 description 24
- 229920001577 copolymer Polymers 0.000 description 21
- 239000011230 binding agent Substances 0.000 description 11
- -1 metal complex salts Chemical class 0.000 description 10
- 238000011161 development Methods 0.000 description 9
- 239000000975 dye Substances 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 239000000049 pigment Substances 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 235000014366 other mixer Nutrition 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical class OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 2
- 239000011257 shell material Substances 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 150000003505 terpenes Chemical class 0.000 description 2
- 235000007586 terpenes Nutrition 0.000 description 2
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 2
- LNETULKMXZVUST-UHFFFAOYSA-N 1-naphthoic acid Chemical class C1=CC=C2C(C(=O)O)=CC=CC2=C1 LNETULKMXZVUST-UHFFFAOYSA-N 0.000 description 1
- SBYMUDUGTIKLCR-UHFFFAOYSA-N 2-chloroethenylbenzene Chemical compound ClC=CC1=CC=CC=C1 SBYMUDUGTIKLCR-UHFFFAOYSA-N 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- HIBWGGKDGCBPTA-UHFFFAOYSA-N C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 Chemical compound C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 HIBWGGKDGCBPTA-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- 239000001692 EU approved anti-caking agent Substances 0.000 description 1
- 239000013032 Hydrocarbon resin Substances 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 208000037062 Polyps Diseases 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 229920007962 Styrene Methyl Methacrylate Polymers 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- BAPJBEWLBFYGME-UHFFFAOYSA-N acrylic acid methyl ester Natural products COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 1
- 229920006243 acrylic copolymer Polymers 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- LUXIMSHPDKSEDK-UHFFFAOYSA-N bis(disilanyl)silane Chemical compound [SiH3][SiH2][SiH2][SiH2][SiH3] LUXIMSHPDKSEDK-UHFFFAOYSA-N 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000021615 conjugation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 150000001991 dicarboxylic acids Chemical class 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 1
- 229920005648 ethylene methacrylic acid copolymer Polymers 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- RBTKNAXYKSUFRK-UHFFFAOYSA-N heliogen blue Chemical class [Cu].[N-]1C2=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=NC([N-]1)=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=N2 RBTKNAXYKSUFRK-UHFFFAOYSA-N 0.000 description 1
- 229920006270 hydrocarbon resin Polymers 0.000 description 1
- 229920000554 ionomer Polymers 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 235000013980 iron oxide Nutrition 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- NYGZLYXAPMMJTE-UHFFFAOYSA-M metanil yellow Chemical class [Na+].[O-]S(=O)(=O)C1=CC=CC(N=NC=2C=CC(NC=3C=CC=CC=3)=CC=2)=C1 NYGZLYXAPMMJTE-UHFFFAOYSA-M 0.000 description 1
- 229920003146 methacrylic ester copolymer Polymers 0.000 description 1
- ADFPJHOAARPYLP-UHFFFAOYSA-N methyl 2-methylprop-2-enoate;styrene Chemical compound COC(=O)C(C)=C.C=CC1=CC=CC=C1 ADFPJHOAARPYLP-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229920001490 poly(butyl methacrylate) polymer Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920002285 poly(styrene-co-acrylonitrile) Polymers 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920002102 polyvinyl toluene Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229920006249 styrenic copolymer Polymers 0.000 description 1
- 125000000547 substituted alkyl group Chemical group 0.000 description 1
- 125000003107 substituted aryl group Chemical group 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 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
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は電子写真、静電記録及び静電印刷等における静
電荷像を現像するための新規な磁性トナーに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a novel magnetic toner for developing electrostatic images in electrophotography, electrostatic recording, electrostatic printing, and the like.
［従来の技術］
従来、電子写真法としては米国特許第２，２９７，６９
１号明細書、特公昭４２−２３９１０号公報（米国特許
第３，６６６，３８３号明細書）及び特公昭４３−２４
７４８号公報（米国特許第４，０７１，３６１号明細書
）等に記載されている如く、多数の方法が知られている
が、般には光導電性物質を利用し、種々の手段により感
光体上に電気的潜像を形成し、次いで該潜像をトナーで
現像を行なって可視像とし、必要に応じて、紙等の転写
材にトナー画像を転写した後、加熱、圧力等により定着
し、複写物を得るものである。[Prior Art] Conventionally, as an electrophotographic method, U.S. Patent No. 2,297,69
Specification No. 1, Japanese Patent Publication No. 42-23910 (U.S. Patent No. 3,666,383), and Japanese Patent Publication No. 43-24
A number of methods are known, such as those described in U.S. Pat. An electrical latent image is formed on the body, and then the latent image is developed with toner to become a visible image, and if necessary, after the toner image is transferred to a transfer material such as paper, it is transferred by heat, pressure, etc. It is fixed and a copy is obtained.
静電潜像をトナーを用いて可視像化する現像方法も種々
知られている。例えば米国特許第２，８７４，０８３号
明細書に記載されている磁気ブラシ法、同第２，６１８
，５５２号明細書に記載されているカスケード現像法及
び同第２，２２１，７７６号明細書に記載されているパ
ウダークラウド法、ファーブラシ現像法、液体現像法等
、多数の現像法が知られている。これらの現像法におい
て、特にトナー及びキャリアを主体とする現像剤を用い
る磁気ブラシ法、カスケード法、液体現像法などが広く
実用化されている。これらの方法はいずれも比較的安定
に良画像の得られる優れた方法であるが、反面キャリア
の劣化、トナーとキャリアの混合比の変動という２成分
系現像剤にまつわる共通の欠点を有する。Various developing methods are also known in which an electrostatic latent image is visualized using toner. For example, the magnetic brush method described in U.S. Pat. No. 2,874,083;
A large number of development methods are known, such as the cascade development method described in No. 2,221,776, the powder cloud method, the fur brush development method, and the liquid development method. ing. Among these development methods, the magnetic brush method, cascade method, liquid development method, etc., which use a developer mainly consisting of toner and carrier, are in particular widely put into practical use. All of these methods are excellent methods in which good images can be obtained relatively stably, but on the other hand, they have common drawbacks associated with two-component developers, such as deterioration of the carrier and fluctuations in the mixing ratio of toner and carrier.
かかる欠点を回避するため、トナーのみよりなる１成分
系現像剤を用いる現像方法が各種提案されているが、中
でも、磁性を有するトナー粒子より戒る現像剤を用いる
方法に優れたものが多い。In order to avoid such drawbacks, various development methods using a one-component developer consisting only of toner have been proposed, but among these, many methods using a developer that is more sensitive than magnetic toner particles are superior.
従来、これらトナーには、現像される静電潜像の極性に
応じて予め正又は負の電荷が与えられる。Conventionally, these toners are previously given a positive or negative charge depending on the polarity of the electrostatic latent image to be developed.
トナーに電荷を付与するためには、トナーの成分である
樹脂の摩擦１ｊＦ電性のみを利用することも出来るが、
この方法ではトナーの帯電性が小さいので、現像によっ
て得られる画像はカブリ易く、不鮮明なものとなる。そ
こて、所望の摩擦帯電性をトナーに付与するために、帯
電性を強化する染料、顔料等をはじめとする電荷制御剤
を添加することが行われている。In order to impart an electric charge to the toner, it is possible to utilize only the triboelectricity of the resin, which is a component of the toner.
In this method, since the toner has low chargeability, the image obtained by development is likely to be foggy and unclear. Therefore, in order to impart desired triboelectric charging properties to the toner, charge control agents such as dyes and pigments that enhance the charging properties are added.
今日、当該技術分野で知られている電荷制御剤としては
、ニグロシン染料、アジン系染料（特公昭４２−１６２
７号公報）、モノアゾ染料の金属錯塩、サリチル酸、ナ
フトエ酸、ダイカルボン酸の金属錯塩、銅フタロシアニ
ン顔料などがある。これら染顔料から派生したものは、
優れた電荷制御特性を示す。Charge control agents known in the art today include nigrosine dyes, azine dyes (Japanese Patent Publication No. 42-162
7), metal complex salts of monoazo dyes, metal complex salts of salicylic acid, naphthoic acid, and dicarboxylic acids, and copper phthalocyanine pigments. Those derived from these dyes and pigments are
Shows excellent charge control properties.
しかし、今後、オフィスにおける情報量の増加に伴う複
写枚数の増大、しかるに複写機の複写速度の高速化に伴
って、複写機の高信頼性が望まれる。そのためトナーは
更に安定化することが要求されている。However, in the future, as the amount of information in offices increases, the number of copies to be made will increase, and as the copying speed of copying machines increases, high reliability of copying machines will be desired. Therefore, toners are required to be further stabilized.
このような情況のもとて、トナーを更に安定化させる上
で電荷制御剤の分散性は重大な役割を持つ。しかるに、
染顔料系の電荷制御剤は自己凝集力が強いため、現在用
いられている染・顔料系電荷制御剤は更に分散性を向上
する必要がある。Under these circumstances, the dispersibility of the charge control agent plays an important role in further stabilizing the toner. However,
Dye/pigment type charge control agents have a strong self-cohesive force, so it is necessary to further improve the dispersibility of the currently used dye/pigment type charge control agents.
又、最近、樹脂との相溶性を高める目的で、電荷制御剤
として、アミノ基を含有するビニル系ボリマー、アミノ
基を含有する縮合系ボリマーなどのポリアミンなどが提
案されているが、これらの電荷制御剤は、親水性のもの
が多く、特に、高湿下で摩擦帯電量が低下する。又、高
温条件下で摩擦帯電量が低下しないものは、低湿条件下
で、摩擦帯電量が異常に増加する。このような摩擦帯電
量が湿度により著しく変動する電荷制御剤を含有したト
ナーを用いると、温湿度の変化により画質が変化してし
まい、常に良好な品質の画像を提供することが極めて困
難になる。Recently, polyamines such as vinyl polymers containing amino groups and condensation polymers containing amino groups have been proposed as charge control agents for the purpose of increasing compatibility with resins. Many of the control agents are hydrophilic, and the amount of triboelectric charge decreases especially under high humidity. In addition, if the amount of triboelectric charge does not decrease under high temperature conditions, the amount of triboelectricity will abnormally increase under low humidity conditions. If a toner containing a charge control agent whose triboelectric charge varies significantly depending on humidity is used, the image quality will change due to changes in temperature and humidity, making it extremely difficult to consistently provide images of good quality. .
従って、今後、複写の高速化に伴って、トナー帯電量の
温・湿度依存性により厳しい条件が要求されると共に、
電荷制御剤の樹脂との分散性も考慮した上での’ＮＦｉ
ｔ能の温・湿度依存性も厳しい条件が要求され、このよ
うな理由から樹脂との相溶性が良好な温・湿度依存性が
少ない電荷制御剤の開発が強く要請されている。Therefore, as copying speeds increase in the future, stricter conditions will be required for the dependence of toner charge on temperature and humidity.
'NFi after considering the dispersibility of the charge control agent with the resin.
Strict conditions are also required for the temperature and humidity dependence of the t-ability, and for these reasons there is a strong demand for the development of a charge control agent that has good compatibility with resins and has little temperature and humidity dependence.
［発明が解決しようとする課題］
本発明の目的は、かかる問題点を解決した磁性トナーを
提供することにある。[Problems to be Solved by the Invention] An object of the present invention is to provide a magnetic toner that solves these problems.
即ち本発明の目的は、樹脂と電荷制御剤の分散性が良好
で、かつトナーとスリーブの如きトナー担持体との間等
の摩擦帯電量が温度、湿度の変化を受けずに安定で、環
境条件の変化に影響され難い安定した画像を再現し得る
磁性トナーの提供にある。That is, an object of the present invention is to ensure that the dispersibility of the resin and the charge control agent is good, and that the amount of triboelectric charge between the toner and the toner carrier such as a sleeve is stable without being affected by changes in temperature and humidity, and that the charge control agent is stable in the environment. An object of the present invention is to provide a magnetic toner capable of reproducing stable images that are not easily affected by changes in conditions.
更に本発明の目的は、正または負の良好な摩擦帯電性を
有する磁性トナーの提供にある。A further object of the present invention is to provide a magnetic toner having good positive or negative triboelectric charging properties.
又、本発−明の目的は、耐久性に優れカブリのない鮮明
な画像を得る磁性トナーの提供にある。Another object of the present invention is to provide a magnetic toner that has excellent durability and provides clear images without fogging.
［課題を解決するための手段及び作用］木発明者は前記
の目的を達成する為鋭意検討した結果、少なくとも一般
式ＣＩ）で表される重量平均分子量２，０００〜１，０
００，０００なるボリシラン化合物及び磁性体を含有す
る磁性トナーによって目的が達成される。[Means and effects for solving the problem] As a result of intensive studies to achieve the above object, the inventor of the tree discovered that the weight average molecular weight represented by the general formula CI) is at least 2,000 to 1,0.
The object is achieved by a magnetic toner containing a polysilane compound of 0.00,000 and a magnetic material.
（式中、Ｒ，， Ｒ２， Ｒ３及びＲ４は、アルキル、
アリール、置換アルキル、置換アリール及びアルコキシ
から成る群から選ばれ、いずれも同じであっても或いは
異なってもよい。ｎとｍはボリマー中の総モノマーに対
するそれぞれのモノマー数の割合を示すモル比であり、
ｎ＋ｍ＝ １となり、Ｏ＜ｎ≦１、０≦ｍ＜１である。(wherein R,, R2, R3 and R4 are alkyl,
They are selected from the group consisting of aryl, substituted alkyl, substituted aryl and alkoxy, and may be the same or different. n and m are molar ratios indicating the proportion of the number of each monomer to the total monomers in the polymer,
n+m=1, O<n≦1, 0≦m<1.
） により本発明は達成される。) The present invention is thus achieved.
即ち、本発明は重合度の異なるボリシラン化合物及び磁
性体を含有することにより、樹脂との相溶性に優れ、正
又は負の良好な摩擦帯電性を有した磁性トナーに関する
。That is, the present invention relates to a magnetic toner which contains a polysilane compound having a different degree of polymerization and a magnetic material, thereby having excellent compatibility with a resin and having good positive or negative triboelectric charging properties.
ボリシランは主鎖のσ一結合の軌道準位が高く、共役に
よってσ電子が非局在化（フィジカル・レビュー８ ３
０ ５８７１ ＰＰ （１９ｇ４）） シて半導体的な
特性を示す。又、Ｓｔ主釦が長くなる、つまり分子量が
大きくなるとイオン化ポテンシャルが小さくなる。（ジ
ャーナル・オプ・アメリカン・ケミカル・ソサエティー
， ９２， ５１９ ＰＰ （１９７０））これにより
、ボリシランの分子量を調節し、低分子量ボリシランは
負帯電性トナーの電荷制御剤として、又高分子量ボリシ
ランは、正帝電性トナーの電荷制御剤として用いること
が可能であると考えられる。又、局在したπ一軌道を有
する側鎖基は、主鎖のσ一軌道と相互作用を及ぼし、結
果的にイオン化ポテンシャルを小せしめるため、側鎖基
としてフェニル基など置換したポリシリコンで高分子量
のものは正の電荷制御剤として有用であると考えられる
。Vorisilane has a high orbital level of the σ-bond in the main chain, and σ electrons are delocalized due to conjugation (Physical Review 8 3
0 5871 PP (19g4)) It exhibits semiconductor-like characteristics. Further, as the St main button becomes longer, that is, the molecular weight becomes larger, the ionization potential becomes smaller. (Journal of the American Chemical Society, 92, 519 PP (1970)) This allows the molecular weight of vorisilane to be adjusted, with low molecular weight polysilane being used as a charge control agent in negatively charged toners, and high molecular weight polysilane being used as a charge control agent in negatively charged toners. It is believed that it can be used as a charge control agent for Teiden toner. In addition, side chain groups with a localized π-one orbital interact with the σ-one orbital of the main chain, resulting in a reduction in the ionization potential. Those of molecular weight are considered useful as positive charge control agents.
また、本発明の電荷制御剤は、現在用いられている電荷
制御剤に比べ高分子量であるため樹脂との相溶性も良く
、分散も均一てあるために、良好な電荷制御が望める。Furthermore, the charge control agent of the present invention has a higher molecular weight than the charge control agents currently used, so it has good compatibility with resins and is uniformly dispersed, so that good charge control can be expected.
又、主鎖が疎水性のため高湿下でも帯電性は失われず、
良好な電荷制御が行なえると考えられる。In addition, because the main chain is hydrophobic, it does not lose its chargeability even under high humidity.
It is thought that good charge control can be performed.
正又は負の電荷制御剤として用いる場合の境界は分子量
、側鎖基と考慮する必要があり、一義的には決められな
いが、負の電荷制御剤としては、重量平均分子量が２０
，０００以下のものか好ましく、正の電荷制御剤として
は、重量平均分子量が２０，０００以上のものが好まし
い。The boundary when used as a positive or negative charge control agent must be taken into consideration with molecular weight and side chain groups, and cannot be determined unambiguously, but as a negative charge control agent, weight average molecular weight of 20
,000 or less, and the positive charge control agent preferably has a weight average molecular weight of 20,000 or more.
重量平均分子量が、２，０００より小なるものは、結着
樹脂との相溶性が不十分であり、又重量平均分子量が１
，０００，０００より大なるものは、トナー作製時の混
練過程において混合性が悪く、偏析や凝集が起こり、帯
電性能の低下を生じる。If the weight average molecular weight is less than 2,000, the compatibility with the binder resin is insufficient, and if the weight average molecular weight is less than 1.
,000,000 has poor mixing properties during the kneading process during toner production, causing segregation and agglomeration, resulting in a decrease in charging performance.
中でも好ましくは結着樹脂の重量平均分子量よりも低い
重量平均分子量を有するボリシラン化合物を用いること
である。Among these, it is preferable to use a polysilane compound having a weight average molecular weight lower than that of the binder resin.
本発明における一般式（Ｉ）で表される上述のボリシラ
ン化合物の具体例として以下のものが挙げられる。Specific examples of the above-mentioned polysilane compound represented by the general formula (I) in the present invention include the following.
上記構造式中のＸとＹはいずれも単量体の重合単位を示
す。そしてｎは、Ｘ／ （Ｘ＋Ｙ） 、また、ｍはＹ／
（Ｘ＋Ｙ）の計算式によりそれぞれ求められる。Both X and Y in the above structural formula represent polymerized units of monomers. And n is X/ (X+Y), and m is Y/
They are each calculated using the formula (X+Y).
上記ボリシラン化合物は多くの公知方法で製造でき、単
独又は２種以上の併用で用いられるが、必要に応じて、
従来公知の電荷制御剤を本発明の電荷制御剤と組み合わ
せて使用することもできる。The above-mentioned vorisilane compounds can be produced by many known methods, and can be used alone or in combination of two or more, but if necessary,
Conventionally known charge control agents can also be used in combination with the charge control agent of the present invention.
これら電荷制御剤を結着樹脂及び磁性体を必須成分とす
るトナー中に配合することにより、本発明のトナーが得
られる。電荷制御剤の配合の形態としては、トナー中に
均一に内包させる、いわゆる内添形態と、トナーに混合
し付着させる、いわゆる外添形態のいずれも採用可能で
ある。The toner of the present invention can be obtained by blending these charge control agents into a toner containing a binder resin and a magnetic material as essential components. The charge control agent may be blended in either a so-called internal addition form, in which it is uniformly included in the toner, or an external addition form, in which it is mixed and adhered to the toner.
１１
内添する場合、電荷制御剤の使用量は結着樹脂の種類、
必要に応じて使用される添加剤の有無、分散方法を含め
たトナー製造方法によって決定されるもので一般的に限
定されるものでは無いが、好ましくは結着樹脂１００重
量部に対して０．１〜２０重量部（より好ましくは０．
５〜１０重量部）の範囲で用いられる。11 When internally added, the amount of charge control agent used depends on the type of binder resin,
It is determined by the toner manufacturing method including the presence or absence of additives used as necessary and the dispersion method, and is not generally limited, but preferably 0.000 parts by weight per 100 parts by weight of the binder resin. 1 to 20 parts by weight (more preferably 0.
(5 to 10 parts by weight).
外添する場合は、樹脂１００重量部に対し、０．０１〜
１０重量部が望ましい。外添方法としてはメカノケミカ
ル的な方法で固着させるのが特に好ましい。When externally added, 0.01 to 100 parts by weight of resin
10 parts by weight is desirable. As the external addition method, it is particularly preferable to fix by a mechanochemical method.
尚、必要に応じて、従来公知の電荷制御剤を、本発明の
電荷制御剤と組み合わせて使用することもできる。Note that, if necessary, a conventionally known charge control agent may be used in combination with the charge control agent of the present invention.
本発明に用いられる磁性体としてはマグネタイト、マグ
ヘマイト、フエライト等の酸化鉄；鉄、コバルト、ニッ
ケルのような金属或はこれらの金属とアルミニウム、コ
バルト、銅、鉛、マグネシウム、スズ、亜鉛、アンチモ
ン、ベリリウム、ビスマス、カドミウム、カルシウム、
マンガン、セ１ ２
レン、チタン、タングステン、バナジウムのような金属
との合金及びその混合物等が挙げられる。The magnetic materials used in the present invention include iron oxides such as magnetite, maghemite, and ferrite; metals such as iron, cobalt, and nickel, or these metals and aluminum, cobalt, copper, lead, magnesium, tin, zinc, antimony, Beryllium, bismuth, cadmium, calcium,
Examples include alloys with metals such as manganese, se1 2 , titanium, tungsten, and vanadium, and mixtures thereof.
これらの磁性体は平均粒径が０．１〜２μ程度、特に０
．１−１．０μのものが望ましく、トナー中に含有させ
る量としては樹脂成分１００重量部に対し約２０〜２０
０重量部、特に好ましくは樹脂成分１００重量部に対し
４０〜１５０重量部である。These magnetic materials have an average particle size of about 0.1 to 2μ, especially 0.
．． 1-1.0μ is desirable, and the amount to be included in the toner is about 20-20μ per 100 parts by weight of the resin component.
0 parts by weight, particularly preferably 40 to 150 parts by weight per 100 parts by weight of the resin component.
磁性体の添加量が２０重量部未満のトナーでは、トナー
の磁性が弱く、トナーが現像スリーブより離脱して、カ
ブリのある画像が得られる。また、磁性体の添加量が２
００重量部を越える場合には、トナーの磁力が必要以上
に強くなり、トナーが現像スリーブより離脱しにくく、
画像濃度が低下する。When the amount of the magnetic substance added is less than 20 parts by weight, the toner has weak magnetism, and the toner separates from the developing sleeve, resulting in a foggy image. In addition, the amount of magnetic material added is 2
If it exceeds 0.00 parts by weight, the magnetic force of the toner will be stronger than necessary, and the toner will be difficult to separate from the developing sleeve.
Image density decreases.
トナーの結着樹脂としては、ボリスチレン、ポリーｐ−
クロロスヂレン、ポリビニルトルエンなどのスチレン及
びその置換体の単重合体；スチレンーｐ−クロロスチレ
ン共重合体、スチレンープロピレン共重合体、スチレン
ービニルトルエン共重合体、スチレンービニルナフタレ
ン共重合体、スチレンーアクリル酸メチル共重合体、ス
チレンーアクリル酸エチル共重合体、スチレンーアクリ
ル酸ブチル共重合体、スヂレンーアクリル酸オクチル共
重合体、スチレンーアクリル酸２−エチルヘキシル共重
合体等のスチレンーアクリル共重合体、スヂレンーメタ
クリル酸メチル共重合体、スヂレンメタクリル酸エチル
共重合体、スチレンーメタクリル酸ブチル共重合体、ス
チレンーα−クロルメタクリル酸メチル共重合体、スチ
レンーアクリロニトリル共重合体、スチレンービニルメ
チルエーテル共重合体、スチレンービニルエチルエーテ
ル共重合体、スチレンービニルメチルヶトン共重合体、
スチレンーブタジェン共重合体、スチレンーイソプレン
共重合体、スチレンーアクリロニトリルーインデン共重
合体、スチレンーマレイン酸共重合体、スチレンーマレ
イン酸エステル共重合体などのスチレン系共重合体；ボ
リメチルメタクリレート、ポリブチルメタクリレート、
ポリ塩化ビニル、ポリ酢酸ビニル、ポリエチレン、ボリ
プロピレン、ポリエステル、ポリウレタン、ボリアミド
、エポキシ樹脂、ポリビニルブチラール、ポリアクリル
酸樹脂、ロジン、変性ロジン、テルペン樹脂、フェノー
ル樹脂、脂肪族又は脂環族炭化水素樹脂、芳香族系石油
樹脂、塩素化パラフィン、パラフィンワックスなどが挙
げられ、単独或は混合して使用できる。As the binder resin of the toner, polystyrene, polyp-
Monopolymers of styrene and its substituted products such as chlorostyrene and polyvinyltoluene; styrene-p-chlorostyrene copolymer, styrene-propylene copolymer, styrene-vinyltoluene copolymer, styrene-vinylnaphthalene copolymer, styrene- Styrene such as methyl acrylate copolymer, styrene-ethyl acrylate copolymer, styrene-butyl acrylate copolymer, styrene-octyl acrylate copolymer, styrene-2-ethylhexyl acrylate copolymer, etc. Acrylic copolymer, styrene-methyl methacrylate copolymer, styrene-ethyl methacrylate copolymer, styrene-butyl methacrylate copolymer, styrene-α-chloromethyl methacrylate copolymer, styrene-acrylonitrile copolymer Polymer, styrene-vinyl methyl ether copolymer, styrene-vinyl ethyl ether copolymer, styrene-vinyl methyl ether copolymer,
Styrenic copolymers such as styrene-butadiene copolymer, styrene-isoprene copolymer, styrene-acrylonitrile-indene copolymer, styrene-maleic acid copolymer, and styrene-maleic acid ester copolymer; polymethyl methacrylate, polybutyl methacrylate,
Polyvinyl chloride, polyvinyl acetate, polyethylene, polypropylene, polyester, polyurethane, polyamide, epoxy resin, polyvinyl butyral, polyacrylic acid resin, rosin, modified rosin, terpene resin, phenolic resin, aliphatic or alicyclic hydrocarbon resin , aromatic petroleum resin, chlorinated paraffin, paraffin wax, etc., which can be used alone or in combination.
又特に圧力定着に適した、トナーを与えるために好適な
結着拐脂として限定して挙げると下記のものが単独或は
混合して使用できる。In addition, the following binders and removers may be used alone or in combination as suitable binders and removers for providing toners particularly suitable for pressure fixing.
ポリオレフィン（低分子量ポリエチレン、低分子量ポリ
プロピレン、酸化ポリエチレン、ボリ４フッ化エチレン
など）、エボキシ樹脂、ポリエステル樹脂、スチレンー
ブタジェン共重合体（モノマー比：５〜３０：９５〜７
０）、オレフィン共重合体（エチレンーアクリル酸共重
合体、エチレンーアクリル酸エステル共重合体、エチレ
ンーメタクリル酸共重合体、エヂレンーメタクリル酸エ
ステル共重合体、エチレン酢酸ビニル共重合体、アイオ
ノマー樹脂）、ポリビニルピロリドン、メチルビ１５
ニルエーテルー無水マレイン酸共重合体、マレイン酸変
性フェノール樹脂、フェノール変性テルペン樹脂。Polyolefin (low molecular weight polyethylene, low molecular weight polypropylene, polyethylene oxide, polytetrafluoroethylene, etc.), epoxy resin, polyester resin, styrene-butadiene copolymer (monomer ratio: 5-30:95-7
0), olefin copolymers (ethylene-acrylic acid copolymer, ethylene-acrylic ester copolymer, ethylene-methacrylic acid copolymer, ethylene-methacrylic ester copolymer, ethylene-vinyl acetate copolymer, ionomer resin), polyvinylpyrrolidone, methyl vinyl ether-maleic anhydride copolymer, maleic acid-modified phenol resin, phenol-modified terpene resin.
又本発明のトナーには、必要に応じて上記以外の添加剤
を混合してもよい。添加剤としては、例えばテフロン、
ステアリン酸亜鉛の如き滑剤；酸化セリウム、炭化ケイ
素等の研磨材；例えばコロイダルシリ力、酸化チタン、
酸化アルミニウム等の流動性付与剤；ケーキング防止剤
；例えばカーボンブラック、酸化スズ等の導電性付与剤
；低分子量ポリエチレンなどの定着助剤等がある。特に
、アルキルクロロシラン、アルキルアミノシラン、アル
キルアルコキシシラン或はシリコーンオイル等で処理さ
れた疎水性シリカがトナーに外添されることが好ましい
。Furthermore, additives other than those mentioned above may be mixed into the toner of the present invention, if necessary. Examples of additives include Teflon,
Lubricants such as zinc stearate; abrasives such as cerium oxide and silicon carbide; such as colloidal silicate, titanium oxide,
Examples include fluidity imparting agents such as aluminum oxide; anti-caking agents; conductivity imparting agents such as carbon black and tin oxide; and fixing aids such as low molecular weight polyethylene. In particular, it is preferred that hydrophobic silica treated with alkylchlorosilane, alkylaminosilane, alkylalkoxysilane, silicone oil, or the like be externally added to the toner.
本発明に係る磁性トナーを作製するには前記本発明に係
るボリシラン化合物電荷制御剤及び磁性体を、上記結着
樹脂及び添加剤等をボールミルその他の混合機により充
分混合してから加熱ロール、ニーダー、エクストルーダ
ー等の熱１ ６
混線機を用いて溶融及び混練して樹脂類を互いに相溶せ
しめ、冷却固化後、粉砕及び分級して平均粒径５〜２０
μのトナーを得ることが出来る。或は結着樹脂溶液中に
材料を分敗した後、噴霧乾燥することにより得る方法、
或は、結着樹脂を構成すべき単量体に所定材料を混合し
て乳化懸濁液とした後に重合させてトナーを得る重合法
トナー製造法、或はコア材とシェル材からなるいわゆる
マイクロカプセルトナーのコア部及び／又はシェル部に
含有させる方法等の方法が応用できる。In order to produce the magnetic toner according to the present invention, the polysilane compound charge control agent according to the present invention and the magnetic material are thoroughly mixed with the binder resin and additives using a ball mill or other mixer, and then the polysilane compound charge control agent according to the present invention is thoroughly mixed using a ball mill or other mixer. The resins are melted and kneaded using an extruder, heat 16, etc. to make them compatible with each other, cooled and solidified, and then crushed and classified to obtain particles with an average particle size of 5 to 20.
μ toner can be obtained. Alternatively, the material is separated into a binder resin solution and then spray-dried.
Alternatively, there is a polymerization toner manufacturing method in which toner is obtained by mixing a specified material with the monomers that constitute the binder resin to form an emulsified suspension, and then polymerizing the resulting toner, or a so-called micro toner manufacturing method consisting of a core material and a shell material. Methods such as incorporating it into the core and/or shell of a capsule toner can be applied.
［実施例］
以下、本発明を実施例により、更に具体的に説明するが
、本発明はこれらの実施例により何ら限定されるもので
はない。[Examples] Hereinafter, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited to these Examples in any way.
尚、以下の配合における「部」は全て重量部である。In addition, all "parts" in the following formulations are parts by weight.
実施例１
実施例２
実施例１においてボリシラン化合物を
上記の各処方量を十分にヘンシェルミキサーにより予備
混合を行ない、３本ロールよルで少なくとも２回以上溶
融混練し、冷却後ハンマーミルを用いて約１〜２ｍｍ程
度に粉砕して、次いでエアージェット方式による微粉砕
機で４０μｍ以下の粒径に微粉砕した。さらに得られた
微粉砕物を分級して、１〜２０μｍを選択して負帯電性
磁性トナーを得た。Example 1 Example 2 In Example 1, the above-mentioned amounts of the vorisilane compound were sufficiently premixed using a Henschel mixer, melt-kneaded at least twice using a three-roll mill, and after cooling, the mixture was mixed using a hammer mill. The mixture was ground to about 1 to 2 mm, and then pulverized to a particle size of 40 μm or less using an air jet type pulverizer. Further, the obtained finely pulverized product was classified to select particles having a particle diameter of 1 to 20 μm to obtain a negatively charged magnetic toner.
このトナーを市販のキヤノン製複写機（商品名ＮＰ−８
５８０ ）に適用し画像テストを行なったところ、高画
像濃度で１００，０００枚耐久後もカブリのない良好な
画像が得られた。Apply this toner to a commercially available Canon copier (product name NP-8).
580), and an image test was performed, and good images without fogging were obtained at high image density even after 100,000 sheets of printing.
又、低温低湿下において、チャージアップによる画像濃
度低下や、高温高湿下においてカブリのない良好な画像
が得られた。In addition, good images were obtained with no reduction in image density due to charge-up under low temperature and low humidity conditions, and without fogging under high temperature and high humidity conditions.
に変える以外は実施例１と同様にトナーを作製し、得ら
れたトナーは正帯電性磁性トナーであった。A toner was produced in the same manner as in Example 1, except that the following was changed, and the obtained toner was a positively charged magnetic toner.
市販のキヤノン製複写機（商品名ＮＰ−５５４０）にこ
の磁性トナーを適用し、実施例１と同様に画像テストを
行なったところ、低温低湿、高温高温環境において画像
濃度も高く、カブリのない詳明画像が得られ、５０，０
００枚耐久後も良好な画像が得られた。When this magnetic toner was applied to a commercially available Canon copying machine (product name NP-5540) and an image test was conducted in the same manner as in Example 1, the image density was high in low temperature, low humidity, and high temperature environments, and detailed clarity without fogging was achieved. Image obtained, 50,0
Good images were obtained even after 00 sheets of durability.
実施例３ １ ９ ２ ０ 化に影響されず、良好な画像を得ることができる。Example 3 19 2 0 It is possible to obtain good images without being affected by
上記の各処方量を実施例１と同様にしてトナー作製した
ところ、負帯電性磁性トナーを得た。このトナー１００
部に対し、流動性付与剤として酸化アルミニウム０．５
部をヘンシェルもキサーで混合外添した。When a toner was prepared using the same prescription amounts as in Example 1, a negatively charged magnetic toner was obtained. This toner 100
0.5 parts of aluminum oxide as a fluidity imparting agent
A portion of Henschel was mixed and externally added using a kisser.
実施例１と同様に画像テストを行なったところ実施例１
と同様に良好な結果が得られた。When an image test was conducted in the same manner as in Example 1, Example 1
Similar good results were obtained.
比較例１
実施例１においてボリシラン化合物をペンタシラン４部
にする以外は実施例１と同様にトナーを作製した。得ら
れたトナーは負帯電性トナーであり、実施例１と同様に
キャリアと混合し画像テストを行なった結果、低温環境
下において帯電量が高く、画像濃度が低下した。Comparative Example 1 A toner was produced in the same manner as in Example 1 except that the polysilane compound in Example 1 was changed to 4 parts of pentasilane. The obtained toner was a negatively chargeable toner, and when mixed with a carrier and subjected to an image test in the same manner as in Example 1, the amount of charge was high in a low temperature environment, and the image density was reduced.
［発明の効果コ[Effects of invention
Claims (1)
２，０００〜１，０００，０００なるポリシラン化合物
及び磁性体を含有することを特徴とする磁性トナー。 ▲数式、化学式、表等があります▼（ I ） ▲数式、化学式、表等があります▼ （式中、Ｒ＿１、Ｒ＿２、Ｒ＿３及びＲ＿４は、アルキ
ル、アリール、置換アルキル、置換アリール及びアルコ
キシから成る群から選ばれ、いずれも同じであっても或
いは異なってもよい。ｎとｍはポリマー中の総モノマー
に対するそれぞれのモノマー数の割合を示すモル比であ
り、ｎ＋ｍ＝１となり０＜ｎ≦１、０≦ｍ＜１である。 ）Claims: A magnetic toner comprising at least a polysilane compound represented by general formula (I) having a weight average molecular weight of 2,000 to 1,000,000 and a magnetic material. ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (I) ▲ There are mathematical formulas, chemical formulas, tables, etc. They may be the same or different.n and m are molar ratios indicating the proportion of each monomer to the total monomers in the polymer, n+m=1, 0<n≦1, 0≦m<1.)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1240839A JPH03103862A (en) | 1989-09-19 | 1989-09-19 | Magnetic toner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1240839A JPH03103862A (en) | 1989-09-19 | 1989-09-19 | Magnetic toner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03103862A true JPH03103862A (en) | 1991-04-30 |
Family
ID=17065470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1240839A Pending JPH03103862A (en) | 1989-09-19 | 1989-09-19 | Magnetic toner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03103862A (en) |
-
1989
- 1989-09-19 JP JP1240839A patent/JPH03103862A/en active Pending
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