JPH025072A - Production of toner for two-component development - Google Patents
Production of toner for two-component developmentInfo
- Publication number
- JPH025072A JPH025072A JP63154792A JP15479288A JPH025072A JP H025072 A JPH025072 A JP H025072A JP 63154792 A JP63154792 A JP 63154792A JP 15479288 A JP15479288 A JP 15479288A JP H025072 A JPH025072 A JP H025072A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- binder resin
- toner particles
- particles
- charge
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000002245 particle Substances 0.000 claims abstract description 36
- 239000011347 resin Substances 0.000 claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 19
- 239000011230 binding agent Substances 0.000 claims abstract description 14
- 239000000654 additive Substances 0.000 claims abstract description 11
- 230000009477 glass transition Effects 0.000 claims abstract description 10
- 239000003086 colorant Substances 0.000 claims abstract description 8
- 230000000996 additive effect Effects 0.000 claims abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 239000010419 fine particle Substances 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 229910044991 metal oxide Inorganic materials 0.000 claims description 5
- 150000004706 metal oxides Chemical class 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 abstract description 13
- 238000009826 distribution Methods 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract description 5
- 230000007423 decrease Effects 0.000 abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 3
- 239000004793 Polystyrene Substances 0.000 abstract description 3
- 239000003921 oil Substances 0.000 abstract description 3
- 229920002223 polystyrene Polymers 0.000 abstract description 3
- 239000006229 carbon black Substances 0.000 abstract description 2
- 229910002804 graphite Inorganic materials 0.000 abstract description 2
- 239000010439 graphite Substances 0.000 abstract description 2
- 238000004898 kneading Methods 0.000 abstract description 2
- 238000010186 staining Methods 0.000 abstract 2
- 238000002156 mixing Methods 0.000 description 9
- 239000000049 pigment Substances 0.000 description 8
- 239000000843 powder Substances 0.000 description 8
- -1 ethylene, propylene Chemical group 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 229920001577 copolymer Polymers 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 108091008695 photoreceptors Proteins 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].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 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 244000208060 Lawsonia inermis Species 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 235000010724 Wisteria floribunda Nutrition 0.000 description 2
- 229920000800 acrylic rubber Polymers 0.000 description 2
- DFYKHEXCUQCPEB-UHFFFAOYSA-N butyl 2-methylprop-2-enoate;styrene Chemical compound C=CC1=CC=CC=C1.CCCCOC(=O)C(C)=C DFYKHEXCUQCPEB-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229920000578 graft copolymer Polymers 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 description 1
- LLLVZDVNHNWSDS-UHFFFAOYSA-N 4-methylidene-3,5-dioxabicyclo[5.2.2]undeca-1(9),7,10-triene-2,6-dione Chemical compound C1(C2=CC=C(C(=O)OC(=C)O1)C=C2)=O LLLVZDVNHNWSDS-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 229920000147 Styrene maleic anhydride Polymers 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000004422 alkyl sulphonamide group Chemical group 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 230000001153 anti-wrinkle effect Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- CXKCTMHTOKXKQT-UHFFFAOYSA-N cadmium oxide Inorganic materials [Cd]=O CXKCTMHTOKXKQT-UHFFFAOYSA-N 0.000 description 1
- CFEAAQFZALKQPA-UHFFFAOYSA-N cadmium(2+);oxygen(2-) Chemical compound [O-2].[Cd+2] CFEAAQFZALKQPA-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229920006037 cross link polymer Polymers 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000005661 hydrophobic surface Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229940002712 malachite green oxalate Drugs 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- CXKWCBBOMKCUKX-UHFFFAOYSA-M methylene blue Chemical compound [Cl-].C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 CXKWCBBOMKCUKX-UHFFFAOYSA-M 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 229940099800 pigment red 48 Drugs 0.000 description 1
- 229920002285 poly(styrene-co-acrylonitrile) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 229940051201 quinoline yellow Drugs 0.000 description 1
- 235000012752 quinoline yellow Nutrition 0.000 description 1
- IZMJMCDDWKSTTK-UHFFFAOYSA-N quinoline yellow Chemical compound C1=CC=CC2=NC(C3C(C4=CC=CC=C4C3=O)=O)=CC=C21 IZMJMCDDWKSTTK-UHFFFAOYSA-N 0.000 description 1
- 239000004172 quinoline yellow Substances 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 235000013799 ultramarine blue Nutrition 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
- KAKZBPTYRLMSJV-UHFFFAOYSA-N vinyl-ethylene Natural products C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 1
- XOSXWYQMOYSSKB-LDKJGXKFSA-L water blue Chemical compound CC1=CC(/C(\C(C=C2)=CC=C2NC(C=C2)=CC=C2S([O-])(=O)=O)=C(\C=C2)/C=C/C\2=N\C(C=C2)=CC=C2S([O-])(=O)=O)=CC(S(O)(=O)=O)=C1N.[Na+].[Na+] XOSXWYQMOYSSKB-LDKJGXKFSA-L 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/0802—Preparation methods
- G03G9/0815—Post-treatment
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、電子写真法、静電記録法等において、静電潜
像を現像する為に使用する二成分現像剤用トナーの製造
方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for producing a toner for a two-component developer used for developing an electrostatic latent image in electrophotography, electrostatic recording, and the like.
従来の技術
電子写真法、静電記録法等において、静電潜像を現像す
る為に使用する電子写真用現像剤としては、ポリスチレ
ン、スチレン−ブタジェン共重合体、ポリエステルなど
の樹脂類にカーボンブラック、フタロシアニンブルーな
どの顔料又は染料を着色剤として使用し、溶融混線後、
１μｍないし３０μｍに粉砕してトナーを得、このトナ
ーを、キャリアとして平均粒径がトナーの粒径とほぼ同
じか、ないしは５００μｍ間でのガラスピース゛、鉄、
ニッケル、フェライト等の粒子、或いはこれらに種々の
樹脂を被覆したものと混合して、二成分現像剤としたも
のが一般に用いられている。Conventional techniques In electrophotography, electrostatic recording, etc., electrophotographic developers used to develop electrostatic latent images include resins such as polystyrene, styrene-butadiene copolymer, and polyester, and carbon black. , using a pigment or dye such as phthalocyanine blue as a coloring agent, and after melt mixing,
A toner is obtained by crushing it to 1 μm to 30 μm, and this toner is used as a carrier with glass pieces, iron,
A two-component developer is generally used by mixing particles of nickel, ferrite, etc., or particles coated with various resins.
しかしながら、これらの電子写真現像剤は、所望の帯電
量、帯電速度、電荷交換性、帯電の均一性、画質の環境
依存性及び現像剤の耐久性等が充分でないため、しばし
ば、帯電コンＩ〜ローラーを添加剤として内添又は外添
することが行われている。However, these electrophotographic developers often do not have the desired charging amount, charging speed, charge exchangeability, charging uniformity, environmental dependence of image quality, developer durability, etc. Rollers are added internally or externally as an additive.
発明が解決しようとする課題
しかしながら、従来用いられている帯電コン１〜ローラ
ーを単に添加しただけでは、必ずしも上記した諸要求を
満足するものではなく、特に、電気抵抗値が１０ Ω・
ｃｍ〜１０９Ω・ｃｍの金属酸化物粉末を帯電コントロ
ーラーとして外添した系では、所望の帯電量が得られる
添加量と、所望の電荷交換性か得られる添加量とは一致
せず、帯電量を所定の値に合わせると、電荷交換性が著
しく悪くなって、感光体の非画像部へのトナーの付着が
多くなり、カブリの多いコピーしか得られない結果とな
るという問題があった。Problems to be Solved by the Invention However, simply adding the conventionally used charging controllers 1 to rollers does not necessarily satisfy the above-mentioned requirements.
In a system in which a metal oxide powder of cm to 109 Ω・cm is externally added as a charge controller, the amount of addition that provides the desired amount of charge does not match the amount of addition that provides the desired charge exchange property, and the amount of charge is If it is set to a predetermined value, there is a problem in that the charge exchangeability deteriorates significantly, and more toner adheres to the non-image area of the photoreceptor, resulting in only copies with a lot of fog.
したがって、本発明は、上記従来の技術において要求さ
れる性質の全てを満足する電子写真現像剤を得ることを
目的としてなされたもので、そのために用いる二成分現
像剤用トナーを製造する方法を提供することにある。Therefore, the present invention was made with the aim of obtaining an electrophotographic developer that satisfies all of the properties required in the above-mentioned conventional technology, and provides a method for producing a toner for a two-component developer used for this purpose. It's about doing.
すなわら、本発明の目的は、所望の帯電量を実現し、な
おかつ、優れた電荷交換性を有し、トナアトミックス後
（追加トナーを混合した後）も、電荷分布がシャープで
、感光体の非画像部へのトナー付着が極めて少なく、機
内汚れも少なく、耐久性にも優れ、多数枚の複写にも安
定した画質を得ることができる電子写真現像剤の為の二
成分現像剤用トナーを製造する方法を提供することにあ
る。In other words, it is an object of the present invention to realize a desired amount of charge, have excellent charge exchangeability, and have a sharp charge distribution even after toner atomization (after mixing additional toner), so that the photoconductor Toner for two-component developer for electrophotographic developer that has extremely little toner adhesion to non-image areas, less dirt inside the machine, excellent durability, and can provide stable image quality even when making multiple copies. The purpose is to provide a method for manufacturing.
課題を解決するための手段
本発明の二成分現像剤用トナーの製造方法は、結着樹脂
と着色剤とを混練し、粉砕してトナー粒子を形成し、外
添剤を添加してトナー粒子に付着させ、次いでトナー粒
子を、該結着樹脂のカラス転移点以下の温度で加熱処理
することを特徴とする。Means for Solving the Problems The method for manufacturing a toner for a two-component developer of the present invention involves kneading a binder resin and a colorant, pulverizing them to form toner particles, and adding external additives to form toner particles. The toner particles are then heat-treated at a temperature equal to or lower than the glass transition point of the binder resin.
以下、本発明について詳細に説明する。The present invention will be explained in detail below.
本発明は、まず、結着樹脂と着色剤とを主成分とするト
ナー粒子を形成する。このトナー粒子は、公知の成分を
用いて公知の方法によって製造される。使用される結着
樹脂としては、ポリスチレン、スチレン−アクリル酸ア
ルキル共重合体、スチレン−メタクリル酸アルキル共重
合体、スチレンアクリロニトリル共重合体、スチレン−
ブタジェン共重合体、スチレン−無水マレイン酸共重合
体、不飽和ポリエステル重合体、及び上記重合体とエチ
レン、プロピレン及び酢酸ビニルから選択された単量体
の結晶性重合体とのグラフト共重合体等をあげることか
できる。In the present invention, first, toner particles containing a binder resin and a colorant as main components are formed. These toner particles are manufactured by a known method using known ingredients. Binder resins used include polystyrene, styrene-alkyl acrylate copolymer, styrene-alkyl methacrylate copolymer, styrene-acrylonitrile copolymer, and styrene-alkyl acrylate copolymer.
Butadiene copolymers, styrene-maleic anhydride copolymers, unsaturated polyester polymers, and graft copolymers of the above polymers with crystalline polymers of monomers selected from ethylene, propylene, and vinyl acetate, etc. I can give you something.
また、着色剤としては、例えば、カーボンプラッタ、オ
イルブラック、黒鉛、ニグロシン染料、アニリンブルー
、カルコイルブルー
ロー、ウルトラマリンブルー、デュポンオイルレッド、
キノリンイエロー、メチレンブルークロリド、フタロシ
アニンブルー、マラカイトグリーンオキサレート、ラン
プブラック、ローズベンガル、Ｃ． １．ピグメント・
レッド４８：１ 、Ｃ．１．ピグメント・レッド１２２
、Ｃ． １．ピグメント・レッド５７；１、Ｃ． １．
ピグメント・イエロー９７、Ｃ．Ｉ、ピグメント番イエ
ロー１２ 、Ｃ．１．ピグメン１〜・ブルー１５．１、
Ｃ．１．ピグメント・ブルー１５：３ 、等を代表的な
ものとじて例示することかできる。In addition, examples of coloring agents include carbon platter, oil black, graphite, nigrosine dye, aniline blue, calcoyl blue low, ultramarine blue, DuPont oil red,
Quinoline Yellow, Methylene Blue Chloride, Phthalocyanine Blue, Malachite Green Oxalate, Lamp Black, Rose Bengal, C.I. 1. Pigment・
Red 48:1, C. 1. pigment red 122
,C. 1. Pigment Red 57;1, C.I. 1.
Pigment Yellow 97, C. I, Pigment No. Yellow 12, C. 1. Pigmen 1~・Blue 15.1,
C. 1. Pigment Blue 15:3 and the like can be cited as representative examples.
トナー粒子には、結着樹脂及び着色剤以外に、第３成分
として内添剤を使用してもよい。内添剤としでは、公知
のものならば特に制限はなく、例えば、帯電制御剤やポ
リエチレン、ボップロピレン、ワックス類などのオフセ
ット防止用の樹脂を用いることができる。In addition to the binder resin and the colorant, an internal additive may be used as a third component in the toner particles. There are no particular limitations on the internal additive as long as it is a known one, and for example, a charge control agent, a resin for offset prevention such as polyethylene, vopropylene, waxes, etc. can be used.
本発明においては、上記の成分を混合し、常法によって
加熱混練し、冷却後、粉砕して平均粒径、約３０μｍ以
下、好ましくは３〜２０μｍの範囲のトナー粒子を製造
する。In the present invention, the above-mentioned components are mixed, heated and kneaded by a conventional method, cooled, and then pulverized to produce toner particles having an average particle size of about 30 μm or less, preferably in the range of 3 to 20 μm.
得られたトナー粒子に、外添剤を添加し、混合する。外
添剤として、金属酸化物微粒子、シリカ微粒子、クリー
ニング助剤等が使用される。External additives are added to the obtained toner particles and mixed. As external additives, metal oxide fine particles, silica fine particles, cleaning aids, etc. are used.
金属酸化物微粒子としては、酸化すず、酸化亜鉛、酸化
アルミニウム、酸化チタン、酸化ジルコニウムなどがあ
げられる。これら金属酸化物微粒子は、電気抵抗１０２
〜１０９Ω・ｃｍであり、平均粒径０．３μｍ以下のも
のが好ましい。Examples of metal oxide fine particles include tin oxide, zinc oxide, aluminum oxide, titanium oxide, and zirconium oxide. These metal oxide fine particles have an electrical resistance of 102
~109 Ω·cm, and preferably has an average particle size of 0.3 μm or less.
シリカ微粒子としては、シリカそのもの、又は、特公昭
５４−１６２１９号公報に記載されているごとき、ケイ
素−炭素結合によって直接にケイ素に結合されている１
〜３個の有機基を有するケイ素原子が、ケイ素−酸素−
ケイ素結合を介して化学的に結合した表面ケイ素原子を
有する二酸化ケイ素粒子がめげられる。シワ力微粒子は
疎水化表面処理が施されていてもよい。The silica fine particles include silica itself, or 1 which is directly bonded to silicon by a silicon-carbon bond as described in Japanese Patent Publication No. 54-16219.
A silicon atom having ~3 organic groups is silicon-oxygen-
Silicon dioxide particles are provided having surface silicon atoms chemically bonded via silicon bonds. The anti-wrinkle particles may be subjected to a hydrophobic surface treatment.
又、クリーニング助剤としては、ポリメチルメタクリレ
ート、ポリフッ化ビニリデン、ポリテトラフルオロエチ
レン等の樹脂微粉末等があげられる。Examples of cleaning aids include fine resin powders such as polymethyl methacrylate, polyvinylidene fluoride, and polytetrafluoroethylene.
これら外添剤は、トナー粒子１００重量部に対して０．
１〜５．０重量部の割合で添加するのが好ましい。These external additives may be added in an amount of 0.0% per 100 parts by weight of toner particles.
It is preferable to add it in a proportion of 1 to 5.0 parts by weight.
表面に外添剤付着した１ヘナ一粒子は、次いで加熱処理
される。加熱処理は、例えば、トナー粒子を容器に入れ
、所定の温度の恒温槽中に保持したり、熱風流動槽によ
って行うことかできる。加熱処理温度は、トナー粒子に
使用された結着樹脂のガラス転移点以下の温度である必
要がある。加熱処理温度か、ガラス転移点よりも高くな
ると、加熱処理中にトナー粒子同士が付着してしまう。Each henna particle with external additives attached to its surface is then heat-treated. The heat treatment can be carried out, for example, by placing the toner particles in a container and keeping them in a constant temperature bath at a predetermined temperature, or by using a hot air fluidized bath. The heat treatment temperature needs to be below the glass transition point of the binder resin used for the toner particles. If the heat treatment temperature is higher than the glass transition point, toner particles will adhere to each other during the heat treatment.
好ましい加熱処理温度は、ガラス転移点よりも２°Ｃ〜
１５°Ｃ低い範囲の温度である。加熱処理温度がガラス
転移点よりも１５°Ｃ以上低くなると、加熱処理による
電荷交換性（アトミックス性）の向上効果が少なくなる
。The preferable heat treatment temperature is 2°C or more than the glass transition point.
The temperature range is 15°C lower. When the heat treatment temperature is 15° C. or more lower than the glass transition point, the effect of improving charge exchangeability (atomicity) by the heat treatment decreases.
上記のようにして得られた二成分現像剤用トナは、キャ
リアと混合して、いわゆる二成分現像剤として使用され
る。The toner for a two-component developer obtained as described above is mixed with a carrier and used as a so-called two-component developer.
キャリアとしては、平均粒径が５００μｍまでの粒子で
市って、鉄、ニッケル、コバルト、酸化鉄、フエライ１
〜、ガラスピーズ、粒状シリコンなど公知の材料より構
成されるものが用いられる。また、これら粒子の表面を
、弗素系樹脂、アクリル系樹脂、シリコン樹脂等の被覆
剤で被覆してもよい。As a carrier, particles with an average particle size of up to 500 μm are used, including iron, nickel, cobalt, iron oxide, and iron oxide.
-, glass beads, granular silicon, and other known materials are used. Further, the surfaces of these particles may be coated with a coating agent such as a fluorine resin, an acrylic resin, or a silicone resin.
本発明の二成分現像剤用トナーを用いた電子写真現像剤
は、電子写真感光体或いは静電記録体に形成された静電
潜像を現像するのに用いることかできる。すなわち、セ
レン、酸化亜鉛、酸化カドミウム、無定形シリコンなど
の無機光導電材料、フタロシアニン顔料、ビスアゾ顔料
等の有機光導電材料からなる感光体に、電子写真的に静
電潜像を形成し、或いは、ポ（ノエチレンテレフタレー
１〜のような誘電体を有する静電記録体に、針状電極な
どにより静電潜像を形成し、磁気ブラシ法、カスケード
法等の現像方法によって、静電潜像に、上記二成分現像
剤用トナーを付着させ、トナー像を形成させる。このト
ナー像は、紙などの転写材に転写後、定着して複写物と
なる。An electrophotographic developer using the toner for two-component developer of the present invention can be used to develop an electrostatic latent image formed on an electrophotographic photoreceptor or an electrostatic recording material. That is, an electrostatic latent image is electrophotographically formed on a photoreceptor made of an inorganic photoconductive material such as selenium, zinc oxide, cadmium oxide, or amorphous silicon, or an organic photoconductive material such as a phthalocyanine pigment or a bisazo pigment; An electrostatic latent image is formed on an electrostatic recording medium having a dielectric material such as poly(ethylene terephthalate 1) using a needle-shaped electrode, and the electrostatic latent image is formed by a developing method such as a magnetic brush method or a cascade method. The toner for the two-component developer is attached to the image to form a toner image. After being transferred to a transfer material such as paper, this toner image is fixed and becomes a copy.
実施例 以下、実施例によって本発明を説明する。Example The present invention will be explained below with reference to Examples.
実施例１
プロピレン重合体とスチレン
ｎ−ブチルメタクリレート
（重量比８０：２０）共重合体の
ポリプロピレングラフト共重合体
（ポリプロピレン１０重量部
グラフト成分９０重量部 ５４重量部スチレン−
ｎ−ブチルメタクリレ−Ｉ〜（重量比６５：３５）架橋
重合体 ３６重量部Ｃ，１，ピグメントレッド４８；１
（Ｓｙｍｕｌｅｒ Ｎｅｏｔｈｏｌ Ｒｅｄ ２ＢＹ大
日本インキ化学工業■製）１０重量部上記成分を溶融混
線後、微粉砕し、分級して、平均粒径１２μｍの赤色ト
ナー粒子を得た。Example 1 Polypropylene graft copolymer of propylene polymer and styrene n-butyl methacrylate (weight ratio 80:20) copolymer (10 parts by weight polypropylene 90 parts by weight graft component 54 parts by weight styrene)
n-Butyl methacrylate-I ~ (weight ratio 65:35) crosslinked polymer 36 parts by weight C, 1, Pigment Red 48:1 (Symuler Neothol Red 2BY manufactured by Dainippon Ink & Chemicals ■) 10 parts by weight Melt the above components After cross-mixing, the mixture was finely pulverized and classified to obtain red toner particles having an average particle size of 12 μm.
このトナー粒子１００重量部に対して、電気抵抗が８ｘ
１０８Ω・ｃｍの酸化錫微粉末１．０重量部、シリカ微
粉末０．７重量部及びポリメチルメタクリレート粉末０
．７重量部を添加し、周速１０ｍ／ｓのヘンシエルミキ
ザによって５分間混合した後、第１表に示す条件で加熱
処理を施し、赤色トナー（Ｎｏ。For 100 parts by weight of this toner particle, the electrical resistance is 8x
1.0 parts by weight of 108 Ω cm tin oxide fine powder, 0.7 parts by weight of silica fine powder, and 0 parts by weight of polymethyl methacrylate powder.
．． After adding 7 parts by weight and mixing for 5 minutes using a Henschel mixer at a circumferential speed of 10 m/s, heat treatment was performed under the conditions shown in Table 1 to obtain red toner (No.
１−１〜Ｎｏ、１−１３）を得た。なお、加熱処理は、
トナーを容器に入れて密封し、恒温槽に入れて行った。1-1 to No. 1-13) were obtained. In addition, the heat treatment is
The toner was placed in a container, sealed, and placed in a constant temperature bath.
なお、このトナーにおいて用いた上記二つの重合体の混
合物よりなる結着樹脂（混合比５４：３６）のガラス転
移点は、５５°Ｃであった。Note that the glass transition point of the binder resin (mixing ratio 54:36) made of a mixture of the above two polymers used in this toner was 55°C.
実施例２
スチレン−ｎ−ブチルメタクリレート
（重量比７０ ： ３０）共重合体
９０重量部
銅テトラ（アルキルスルホン
アミド）フタロシアニン ９重量部シリカ微粉末
１重量部上記酸分を溶融混線後、微
粉砕し、分級して、平均粒径１３μｍの青色トナー粒子
を得た。Example 2 Styrene-n-butyl methacrylate (weight ratio 70:30) copolymer 90 parts by weight Copper tetra(alkylsulfonamide) phthalocyanine 9 parts by weight Silica fine powder
After melting and mixing 1 part by weight of the above acid component, the mixture was finely pulverized and classified to obtain blue toner particles having an average particle size of 13 μm.
このトナー粒子１００重量部に対して、電気抵抗が３ｘ
１０２Ω・Ｃｍの酸化チタン微粉末０．４重量部及び疎
水性シリカ微粉末０．８重量部を添加し、１００ｇのＶ
型ブレンダーによって、２０ｐｐｍの回転数で２０分間
混合した後、５０°Ｃの恒温槽で４８時間加熱処理を施
し、青色トナー（Ｎｏ、２−２ ）を得た。また、加熱
処理を施さなかったトナー（Ｎｏ、 ２−１ ）を比較
例とした。For 100 parts by weight of this toner particle, the electrical resistance is 3x
Adding 0.4 parts by weight of 102 Ω・Cm titanium oxide fine powder and 0.8 parts by weight of hydrophobic silica fine powder, 100 g of V
After mixing for 20 minutes using a mold blender at a rotation speed of 20 ppm, heat treatment was performed for 48 hours in a constant temperature bath at 50°C to obtain a blue toner (No. 2-2). In addition, a toner (No. 2-1) that was not subjected to heat treatment was used as a comparative example.
なお、このトナーにおいて用いた結着樹脂のガラス転移
点は、６０°Ｃであった。Note that the glass transition point of the binder resin used in this toner was 60°C.
（比較試験）
平均粒径１３０ ／１ｆｆｌのフェライトコアにメチル
メタクリレ−１〜−ｎ−ブチルメタクリレート共重合体
を被覆したキャリアに対して、実施例１及び２における
各トナーをそれぞれ混合し、電子写真現像剤を調製した
。混合比率は、キャリア１００重量部に対して、トナー
３．５部であった。(Comparative test) Each of the toners in Examples 1 and 2 was mixed with a carrier having a ferrite core having an average particle size of 130/1ffl coated with methyl methacrylate-1 to -n-butyl methacrylate copolymer, and A photographic developer was prepared. The mixing ratio was 3.5 parts of toner to 100 parts by weight of carrier.
次に、この電子写真現像剤１００ ｇを、２５０ｎ］、
Ｉｌ広口びんに入れ、タンブラ−振盪器によって１０分
間振盪し、停止後、電子写真現像剤をサンプリングした
。さらに、トナーを３．５ｇ追加投入しく ＋−ナーア
ドミックス）、３０秒間振盪し、電子写真現像剤をサン
プリングした。この結果を第１表に示す。表中、処理後
の外観について、○は処理前と変化のないもの、×は塊
状となったものを意味し、アトミックス性において、Ｑ
はアトミックス後の電荷分布に逆極性成分のないもの、
△は逆極性成分が３％より少ないもの、×は逆極性成分
が３％以上のものを意味する。Next, 100 g of this electrophotographic developer was mixed with 250 n],
The electrophotographic developer was placed in a wide mouth bottle and shaken for 10 minutes using a tumbler shaker, and after stopping, the electrophotographic developer was sampled. Furthermore, 3.5 g of toner was added (+-toner admix), shaken for 30 seconds, and the electrophotographic developer was sampled. The results are shown in Table 1. In the table, regarding the appearance after treatment, ○ means that there is no change from before treatment, × means that it has become lumpy, and in terms of atomicity, Q
is one in which there is no opposite polarity component in the charge distribution after atomicization,
Δ means that the opposite polarity component is less than 3%, and × means that the opposite polarity component is 3% or more.
また、別に、トナーＮｏ、１−１ 、Ｎｏ、１−７ 、
Ｎｏ、２−１、及びＮｏ、 ２−２について、その電子
写真現像剤９００ Ｑを、二成分磁気ブラシ現像機を有
する複写機（ＦＸ−３８７０、富士ゼロックス■製）の
現像機に入れ、１万枚の連続複写試験を行ったところ、
第２表に示される結果が得られた。表中、Ｑは、カブリ
、機内汚染が実用上問題ないことを意味し、×はコピー
非画像部にまでトナーが付着し、コピー裏面が機内汚染
］ヘナーで汚れたもことを意味する。In addition, separately, toner No. 1-1, No. 1-7,
For No. 2-1 and No. 2-2, put the electrophotographic developer 900 Q into the developing machine of a copying machine (FX-3870, manufactured by Fuji Xerox ■) having a two-component magnetic brush developing machine, and 1 After conducting a continuous copying test of 10,000 sheets,
The results shown in Table 2 were obtained. In the table, Q means that there is no practical problem with fogging or internal contamination, and × means that toner adheres to the non-image area of the copy and the back side of the copy is stained with henna (in-machine contamination).
発明の効果
本発明の二成分現像剤用１〜ナーは、１〜ナ一同士の電
荷交換性を向上させ、トナーの追加投入（トナーアトミ
ックス）後も、電荷分布がシャープで、感光体の非画像
部へのトナー側管が極めて少なく、電子写真複写装置内
の汚れも少ないという優れた効果を示す。Effects of the Invention The two-component developer 1 to toner of the present invention improves the charge exchangeability between 1 to 2, and even after additional toner is added (toner atomic mix), the charge distribution is sharp and the photoreceptor remains stable. It exhibits an excellent effect in that the amount of toner side pipes to non-image areas is extremely small, and there is little dirt inside the electrophotographic copying device.
また、耐久性に優れ、多数枚の複写にも安定した画質の
画像を得ることができる。Furthermore, it has excellent durability and can provide images with stable image quality even when a large number of copies are made.
特許出願人 富士ゼロックス株式会社代理人
弁理士 渡部 剛Patent applicant Fuji Xerox Co., Ltd. Agent
Patent attorney Tsuyoshi Watanabe
Claims (2)
子を形成し、外添剤を添加してトナー粒子に付着させ、
次いでトナー粒子を、該結着樹脂のガラス転移点以下の
温度で加熱処理することを特徴とする二成分現像剤用ト
ナーの製造方法。(1) Knead a binder resin and a colorant, crush them to form toner particles, add external additives and make them adhere to the toner particles,
A method for producing a toner for a two-component developer, characterized in that the toner particles are then heat-treated at a temperature below the glass transition point of the binder resin.
る請求項（１）記載の二成分現像剤用トナーの製造方法
。(2) The method for producing a toner for a two-component developer according to claim (1), wherein the external additive is silica fine particles or metal oxide fine particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63154792A JPH025072A (en) | 1988-06-24 | 1988-06-24 | Production of toner for two-component development |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63154792A JPH025072A (en) | 1988-06-24 | 1988-06-24 | Production of toner for two-component development |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH025072A true JPH025072A (en) | 1990-01-09 |
Family
ID=15591997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63154792A Pending JPH025072A (en) | 1988-06-24 | 1988-06-24 | Production of toner for two-component development |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH025072A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04156466A (en) * | 1990-10-19 | 1992-05-28 | Fujitsu Ltd | Developer agent with binary components |
| US5474871A (en) * | 1992-01-20 | 1995-12-12 | Fuji Xerox Co., Ltd | Process for making magnetic toners |
| JP2009128653A (en) * | 2007-11-26 | 2009-06-11 | Kao Corp | Manufacturing method for toner for electrophotography |
-
1988
- 1988-06-24 JP JP63154792A patent/JPH025072A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04156466A (en) * | 1990-10-19 | 1992-05-28 | Fujitsu Ltd | Developer agent with binary components |
| US5474871A (en) * | 1992-01-20 | 1995-12-12 | Fuji Xerox Co., Ltd | Process for making magnetic toners |
| JP2009128653A (en) * | 2007-11-26 | 2009-06-11 | Kao Corp | Manufacturing method for toner for electrophotography |
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