JPH0236945B2 - - Google Patents
Info
- Publication number
- JPH0236945B2 JPH0236945B2 JP59232890A JP23289084A JPH0236945B2 JP H0236945 B2 JPH0236945 B2 JP H0236945B2 JP 59232890 A JP59232890 A JP 59232890A JP 23289084 A JP23289084 A JP 23289084A JP H0236945 B2 JPH0236945 B2 JP H0236945B2
- Authority
- JP
- Japan
- Prior art keywords
- toner
- parts
- developer
- resin
- image
- 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.)
- Expired - Lifetime
Links
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 125000000217 alkyl group Chemical group 0.000 claims description 6
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 4
- 150000003585 thioureas Chemical class 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 2
- 239000000203 mixture Substances 0.000 description 7
- 239000000843 powder Substances 0.000 description 6
- 239000000975 dye Substances 0.000 description 5
- -1 metal complex compounds Chemical class 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- FPZXQVCYHDMIIA-UHFFFAOYSA-N 1,1-diphenylthiourea Chemical compound C=1C=CC=CC=1N(C(=S)N)C1=CC=CC=C1 FPZXQVCYHDMIIA-UHFFFAOYSA-N 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- FNGYBATZKHIECN-UHFFFAOYSA-N 1-ethyl-3-(4-methylphenyl)thiourea Chemical compound CCNC(=S)NC1=CC=C(C)C=C1 FNGYBATZKHIECN-UHFFFAOYSA-N 0.000 description 2
- FCSHMCFRCYZTRQ-UHFFFAOYSA-N N,N'-diphenylthiourea Chemical compound C=1C=CC=CC=1NC(=S)NC1=CC=CC=C1 FCSHMCFRCYZTRQ-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000001045 blue dye Substances 0.000 description 2
- 239000001055 blue pigment Substances 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
- 239000006229 carbon black Substances 0.000 description 2
- 229920006026 co-polymeric resin Polymers 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- RBTKNAXYKSUFRK-UHFFFAOYSA-N heliogen blue Chemical compound [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 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000025 natural resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000004645 polyester resin Substances 0.000 description 2
- 229920001225 polyester resin Polymers 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- GUYIZQZWDFCUTA-UHFFFAOYSA-N (pentadecachlorophthalocyaninato(2-))-copper Chemical compound [Cu+2].N1=C([N-]2)C3=C(Cl)C(Cl)=C(Cl)C(Cl)=C3C2=NC(C2=C(Cl)C(Cl)=C(Cl)C(Cl)=C22)=NC2=NC(C2=C(Cl)C(Cl)=C(Cl)C(Cl)=C22)=NC2=NC2=C(C(Cl)=C(C(Cl)=C3)Cl)C3=C1[N-]2 GUYIZQZWDFCUTA-UHFFFAOYSA-N 0.000 description 1
- OSNILPMOSNGHLC-UHFFFAOYSA-N 1-[4-methoxy-3-(piperidin-1-ylmethyl)phenyl]ethanone Chemical compound COC1=CC=C(C(C)=O)C=C1CN1CCCCC1 OSNILPMOSNGHLC-UHFFFAOYSA-N 0.000 description 1
- FULZLIGZKMKICU-UHFFFAOYSA-N N-phenylthiourea Chemical compound NC(=S)NC1=CC=CC=C1 FULZLIGZKMKICU-UHFFFAOYSA-N 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
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- VVOLVFOSOPJKED-UHFFFAOYSA-N copper phthalocyanine Chemical compound [Cu].N=1C2=NC(C3=CC=CC=C33)=NC3=NC(C3=CC=CC=C33)=NC3=NC(C3=CC=CC=C33)=NC3=NC=1C1=CC=CC=C12 VVOLVFOSOPJKED-UHFFFAOYSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 229920005792 styrene-acrylic resin Polymers 0.000 description 1
- 229910000859 α-Fe 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
- G03G9/097—Plasticisers; Charge controlling agents
- G03G9/09733—Organic compounds
- G03G9/09775—Organic compounds containing atoms other than carbon, hydrogen or oxygen
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Developing Agents For Electrophotography (AREA)
Description
【発明の詳細な説明】
本発明は、電子写真、静電記録及び静電印刷等
における静電潜像を現像するための、新規な乾式
負荷電トナーに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel dry negatively charged toner for developing electrostatic latent images in electrophotography, electrostatic recording, electrostatic printing, and the like.
元来、静電潜像は、その静電引力により、トナ
ーを付着せしめることにより、現像して可視化す
ることができるが、この静電潜像の現像剤とし
て、液体現像剤の他に粉末現像剤が広く用いられ
ている。 Originally, an electrostatic latent image can be developed and visualized by adhering toner due to its electrostatic attraction, but as a developer for this electrostatic latent image, in addition to liquid developer, powder developer agents are widely used.
この粉末現像剤は、天然樹脂または合成樹脂に
着色剤、荷電制御剤、流動化剤等を分散させた平
均粒径15μｍのトナーと、100〜20μｍの鉄粉フエ
ライト粉のキヤリアとの混合より成る２成分系現
像剤と、天然樹脂または合成樹脂に着色剤、荷電
制御剤、流動化剤、磁性体より成る１成分系現像
剤とに大別することができる。 This powder developer consists of a mixture of toner with an average particle size of 15 μm, which is made by dispersing colorants, charge control agents, fluidizing agents, etc. in natural or synthetic resin, and a carrier of iron powder and ferrite powder with a diameter of 100 to 20 μm. Developers can be roughly divided into two-component developers and one-component developers, which are composed of a natural or synthetic resin, a colorant, a charge control agent, a fluidizing agent, and a magnetic material.
２成分系現像剤は、キヤリアとの摩擦により荷
電せしめたトナーを静電潜像に付着せしめること
により、現像を達成するものであり、１成分系現
像剤としては、従来より、キヤリアの代りにこれ
と同様の機能を有するブラシ状、板状の摩擦部材
との摩擦によつて荷電されるトナーが知られてお
り、又最近に至つて、磁性体微粉末を分散状態に
保ち、該磁性微分末との相互摩擦によつて荷電さ
れるトナーがしられるようになつた。而して、こ
れらの現像用トナーは、現像される静電潜像の極
性に応じて、正または負の荷電が保たれる。 A two-component developer achieves development by attaching charged toner to an electrostatic latent image through friction with a carrier. Conventionally, a one-component developer uses a toner instead of a carrier. Toners that are charged by friction with brush-like or plate-like friction members that have a similar function are known, and recently, magnetic fine powder is kept in a dispersed state and the magnetic differential It has become known that toner is charged by mutual friction with particles. These developing toners are kept positively or negatively charged depending on the polarity of the electrostatic latent image to be developed.
トナーに荷電を保つためには、トナーの主成分
である樹脂の摩擦帯電性を利用することも提案さ
れているが、この方法ではトナーの荷電が小さ
く、かつ、固体表面抵抗値が大きいため、得られ
た画像はカブリ易く、不鮮明なものとなる。そこ
で所望の摩擦帯電性をトナーに付与するために、
荷電を付与する染料、顔料、更には荷電制御剤な
るものを添加することが行われており、今日、当
該技術分野で実用されているものとしては、トナ
ーに正荷電を付与する場合には特公昭41−2427号
公報等に示されているニグロシン系の油溶性染料
等があり、負荷電を付与するものには、特公昭45
−26478号公報に示されている如き含金属錯塩染
料等がある。 In order to keep the toner charged, it has been proposed to utilize the triboelectricity of the resin, which is the main component of the toner, but this method has a small charge on the toner and a large solid surface resistance value, so The resulting image is prone to fogging and becomes unclear. Therefore, in order to impart the desired triboelectricity to the toner,
Dyes, pigments, and even charge control agents that impart a charge are added to the toner, and the ones currently in practical use in this technical field are particularly effective when imparting a positive charge to the toner. There are nigrosine-based oil-soluble dyes as shown in Publication No. 41-2427, etc., and those that impart a negative charge include
There are metal-containing complex dyes such as those shown in Japanese Patent No. 26478.
しかしながら、これらの荷電制御剤としての染
料、顔料は、構造が複雑で安定性に乏しく、例え
ば、機械的摩擦および衝撃、温・湿度条件の変
化、電気的衝撃および光照射等により分解または
変質して荷電制御性が失なわれ易い。また、一つ
の本質的欠陥は、有色物質であるために、特定の
色相を有するトナー用には無色又は実質的に無色
と見なし得る荷電制御剤が必要であるという条件
に違背する点にある。 However, these dyes and pigments used as charge control agents have complex structures and lack stability, and are susceptible to decomposition or deterioration due to, for example, mechanical friction and impact, changes in temperature and humidity conditions, electrical impact, and light irradiation. charge controllability is likely to be lost. Moreover, one essential defect is that since it is a colored substance, it violates the requirement that a charge control agent that can be considered colorless or substantially colorless is required for toner having a specific hue.
最近に至つて、この条件を満さすものとして、
特開昭23−127726号、特開昭57−104940号、特開
昭57−111541号、特開昭57−124357号公報等に
種々の金属錯化合物が示されているが、該錯化合
物は、なお若干の着色が免がれ得ないものであ
る。 Recently, as something that satisfies this condition,
Various metal complex compounds are disclosed in JP-A-23-127726, JP-A-57-104940, JP-A-57-111541, JP-A-57-124357, etc. However, some coloring cannot be avoided.
本発明者らは、樹脂成分との分散性の良好で、
また、溶融練肉が充分出来る温度まで熱安定性を
有し、しかも無色の物質で、金属を含まないでト
ナーに負荷電を付与することが出来る化合物につ
いて鋭意研究した結果、一般式
［式中、R1，R2，R3およびR4は、水素、アルキ
ル基（C1〜C6）又はアルキル基（C1〜C6）で置
換されていてもよいフエニル基を示し、R1，R2，
R3およびR4は同じでも異なつていてもよい。但
し、R1，R2，R3およびR4のうち少なくとも１つ
は、アルキル基（C1〜C6）で置換されていても
よいフエニル基である。］
で表わされるチオ尿素誘導体が、特に優れている
ことを見出し、本発明を完成したものである。 The present inventors have found that the resin component has good dispersibility with the resin component,
In addition, as a result of extensive research into a compound that is thermally stable up to a temperature that is sufficient for melt kneading, is a colorless substance that does not contain metal, and can impart a negative charge to toner, we found that the general formula [Wherein, R 1 , R 2 , R 3 and R 4 represent hydrogen, an alkyl group (C 1 to C 6 ), or a phenyl group optionally substituted with an alkyl group (C 1 to C 6 ), R 1 , R 2 ,
R 3 and R 4 may be the same or different. However, at least one of R 1 , R 2 , R 3 and R 4 is a phenyl group which may be substituted with an alkyl group (C 1 to C 6 ). ] It was discovered that the thiourea derivative represented by the following is particularly excellent, and the present invention was completed.
本発明に係るチオ尿素誘導体の具体例を例示す
ると、フエニルチオ尿素、１，１―ジフエニルチ
オ尿素、１，３―ジフエニルチオ尿素、１，３―
ジトリルチオ尿素、１―エチル３―ｐ―トリルチ
オ尿素、１―イソアミル―３―ｐ―トリルチオ尿
素、１―エチル―３―ｐ―イソアミルフエニルチ
オ尿素等が挙げられる。 Specific examples of the thiourea derivatives according to the present invention include phenylthiourea, 1,1-diphenylthiourea, 1,3-diphenylthiourea, 1,3-
Examples include ditolylthiourea, 1-ethyl-3-p-tolylthiourea, 1-isoamyl-3-p-tolylthiourea, and 1-ethyl-3-p-isoamyl phenylthiourea.
ちなみに、トナー成分中に添加される一般式
（）で表される化合物は、樹脂100重量部に対
し、0.1〜10重量部、好ましくは0.5〜５重量部の
割合で含有せしめる。 Incidentally, the compound represented by the general formula () added to the toner component is contained in a proportion of 0.1 to 10 parts by weight, preferably 0.5 to 5 parts by weight, based on 100 parts by weight of the resin.
本発明トナーは、上記一般式（）で表わされ
る化合物の他に、公知のトナー用樹脂中、接着
性、保存性、流動性、粉砕性等を考慮して、スチ
レン樹脂、スチレン―アクリル系樹脂、スチレン
―ブタジエン樹脂、エポキシ樹脂、ポリエステル
樹脂、パラフインワツクス等の１種又は数種を混
合して用いられる。また着色剤としては、公知の
多数の染料、顔料を用いることが出来るが、カラ
ーコピー用トナーとして特に優れているものとし
て、ベンジジンエロー、キナクリドン、銅フタロ
シアニンブルー、銅フタロシアニングリーン等が
挙げられる。 In addition to the compound represented by the above general formula (), the toner of the present invention is made of styrene resin, styrene-acrylic resin, etc. , styrene-butadiene resin, epoxy resin, polyester resin, paraffin wax, etc., or a mixture of several kinds thereof may be used. As the coloring agent, many known dyes and pigments can be used, but those that are particularly excellent as toners for color copying include benzidine yellow, quinacridone, copper phthalocyanine blue, and copper phthalocyanine green.
本発明トナーは、キヤリアと混合して２成分系
現像剤を提供するが、もちろん、１成分系現像剤
としても使用出来る。 The toner of the present invention is mixed with a carrier to provide a two-component developer, but it can of course also be used as a one-component developer.
以下、実施例で本発明の具体例を説明する。な
お、実施例中において、重量部を部と略して記載
する。 Hereinafter, specific examples of the present invention will be explained in Examples. In addition, in the examples, parts by weight are abbreviated as parts.
実施例 １
スチレン―ｎ―ブチルメタクリレート共重合樹
脂（65／35） ……100部
カーボンブラツク ……６部
１，１―ジフエニルチオ尿素 ……２部
上記混合物をボールミルで均一に予備混合し、
プレミツクスを調製する。次いで熱ロールで溶融
混練し、冷却後、振動ミルで粗粉砕し、更にエア
ージエツトミルを用いて微粉砕した。得られた微
粉末を分級して、粒径10〜20μｍを有する黒色ト
ナーを得た。Example 1 Styrene-n-butyl methacrylate copolymer resin (65/35) ...100 parts Carbon black ...6 parts 1,1-diphenylthiourea ...2 parts The above mixture was premixed uniformly in a ball mill,
Prepare premixes. Next, the mixture was melt-kneaded using hot rolls, cooled, and then coarsely ground using a vibration mill, and further finely ground using an air jet mill. The obtained fine powder was classified to obtain a black toner having a particle size of 10 to 20 μm.
得られたトナー３部に対して鉄粉キヤリア（日
本鉄粉社製、TEFV200／300）97部を混合して、
現像剤を調整した。本現像剤の初期ブローオフ荷
電量は、−28.3μC／ｇであつた。本現像剤を市販
のセレンドラムに磁気ブラシ現像法にてトナー画
像を形成したところ、カブリのない鮮明な黒色の
画像が得られ、長期間（10000枚）にわたり繰り
かえし使用しても、変化のない複写画像を得るこ
とが出来た。 97 parts of iron powder carrier (manufactured by Nippon Tetsuko Co., Ltd., TEFV200/300) was mixed with 3 parts of the obtained toner.
The developer was adjusted. The initial blow-off charge amount of this developer was -28.3 μC/g. When a toner image was formed using this developer on a commercially available selenium drum using the magnetic brush development method, a clear black image without fogging was obtained, and there was no change even after repeated use over a long period of time (10,000 sheets). I was able to obtain a copy of the image.
実施例 ２
ポリエステル樹脂（花王石鹸社製、ATR―
2010） ……100部
青色染料（オリエント化学工業社製、Valifast
Blue2606） ２部
青色顔料（銅フタロシアニン） ……３部
１，３―ジフエニルチオ尿素 ……２部
上記配合物を実施例１と同様に処理して青色ト
ナーを調製した。Example 2 Polyester resin (manufactured by Kao Soap Co., Ltd., ATR-
2010) ...100 parts blue dye (manufactured by Orient Chemical Industry Co., Ltd., Valifast
Blue2606) 2 parts Blue pigment (copper phthalocyanine) 3 parts 1,3-diphenylthiourea 2 parts The above formulation was treated in the same manner as in Example 1 to prepare a blue toner.
得られたトナー３部に対して鉄粉キヤリア97部
を混合して、現像剤を調整した。本現像剤の初期
ブローオフ荷電量は、−32.1μC／ｇであつた。本
現像剤を実施例１と同様に複写したところ、カブ
リのない鮮明な青色の画像が得られ、長期間
（10000枚）にわたり繰りかえし使用しても、変化
のない複写画像を得ることが出来た。 A developer was prepared by mixing 97 parts of iron powder carrier with 3 parts of the obtained toner. The initial blow-off charge amount of this developer was -32.1 μC/g. When this developer was copied in the same manner as in Example 1, a clear blue image without fogging was obtained, and even after repeated use over a long period of time (10,000 copies), it was possible to obtain a copied image with no change. .
実施例 ３
エポキシ樹脂（シエル化学社製、エピコート
1004） ……100部
青色染料（オリエント化学工業社製、Valifast
Blue2606） ……３部
青色顔料（銅フタロシアニン） ……３部
１―エチル―３―ｐ―トリルチオ尿素 ……３部
上記配合物を実施例１と同様に処理して青色ト
ナーを調製した。Example 3 Epoxy resin (manufactured by Ciel Chemical Co., Ltd., Epicoat
1004) ...100 parts blue dye (manufactured by Orient Chemical Industry Co., Ltd., Valifast
Blue2606)...3 parts Blue pigment (copper phthalocyanine)...3 parts 1-ethyl-3-p-tolylthiourea...3 parts The above formulation was treated in the same manner as in Example 1 to prepare a blue toner.
得られたトナー３部に対して鉄粉キヤリア97部
を混合して、現像剤を調整した。本現像剤の初期
ブローオフ荷電量は、−30.1μC／ｇであつた。本
現像剤を実施例１と同様に複写したところ、カブ
リのない鮮明な青色の画像が得られ、長期間
（10000枚）にわたり繰りかえし使用しても、変化
のない複写画像を得ることが出来た。 A developer was prepared by mixing 97 parts of iron powder carrier with 3 parts of the obtained toner. The initial blow-off charge amount of this developer was -30.1 μC/g. When this developer was copied in the same manner as in Example 1, a clear blue image without fogging was obtained, and even after repeated use over a long period of time (10,000 copies), it was possible to obtain a copied image with no change. .
実施例 ４
実施例１における１，１―ジフエニルチオ尿素
を１―エチル―３―ｐ―イソアミルフエニルチオ
尿素に代えた他は、実施例１と同様にして現像剤
を調製した。本現像剤の初期ブローオフ荷電量は
−28.1μC／ｇであつた。Example 4 A developer was prepared in the same manner as in Example 1 except that 1,1-diphenylthiourea in Example 1 was replaced with 1-ethyl-3-p-isoamyl phenylthiourea. The initial blow-off charge amount of this developer was -28.1 μC/g.
また、この現像剤を用いて実施例１と同様にし
てトナー画像を形成したところ、カブリのない鮮
明な黒色の画像が得られ、長期間（10000枚）に
わたり繰りかえし使用しても、変化のない複写画
像を得ることができた。 Furthermore, when a toner image was formed using this developer in the same manner as in Example 1, a clear black image without fogging was obtained, and even after repeated use over a long period of time (10,000 sheets), there was no change. I was able to obtain a duplicate image.
比較例
スチレン―ｎ―ブチルメタクリレート共重合樹
脂（65／35） …100部
カーボンブラツク …６部
上記配合物を実施例１と同様に処理して黒色ト
ナーを調製し、このトナー３部に対し鉄粉キヤリ
ア（日本鉄粉社製、TEFV200／300）97部を混合
して現像剤を調製した。本現像剤の初期ブローオ
フ荷電量は−５〜6μC／ｇであつた。Comparative Example Styrene-n-butyl methacrylate copolymer resin (65/35)...100 parts Carbon black...6 parts The above blend was treated in the same manner as in Example 1 to prepare a black toner. A developer was prepared by mixing 97 parts of powder carrier (manufactured by Nippon Tetsuko Co., Ltd., TEFV200/300). The initial blow-off charge amount of this developer was -5 to 6 μC/g.
また、この現像剤の摩擦帯電量はばらつきが大
きく、非常に不安定であつた。 Further, the amount of triboelectric charge of this developer varied widely and was extremely unstable.
Claims (1)
ル基（C1〜C6）又はアルキル基（C1〜C6）で置
換されていてもよいフエニル基を示し、R1，R2，
R3およびR4は同じでも異なつていてもよい。但
し、R1，R2，R3およびR4のうち少なくとも１つ
は、アルキル基（C1〜C6）で置換されていても
よいフエニル基である。］で表されるチオ尿素誘
導体を荷電制御剤として含有することを特徴とす
る、静電荷像現像用トナー。 ２ チオ尿素誘導体が、樹脂100重量部に対して、
0.5〜５重量部である、特許請求の範囲第１項記
載の静電荷像現像用トナー。[Claims] 1. General formula [Wherein, R 1 , R 2 , R 3 and R 4 represent hydrogen, an alkyl group (C 1 to C 6 ), or a phenyl group optionally substituted with an alkyl group (C 1 to C 6 ), R 1 , R 2 ,
R 3 and R 4 may be the same or different. However, at least one of R 1 , R 2 , R 3 and R 4 is a phenyl group which may be substituted with an alkyl group (C 1 to C 6 ). ] A toner for developing an electrostatic image, comprising a thiourea derivative represented by the following as a charge control agent. 2 The thiourea derivative is added to 100 parts by weight of the resin,
The toner for developing an electrostatic image according to claim 1, wherein the amount is 0.5 to 5 parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59232890A JPS61110157A (en) | 1984-11-05 | 1984-11-05 | Toner for electrostatic charge image development |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59232890A JPS61110157A (en) | 1984-11-05 | 1984-11-05 | Toner for electrostatic charge image development |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61110157A JPS61110157A (en) | 1986-05-28 |
| JPH0236945B2 true JPH0236945B2 (en) | 1990-08-21 |
Family
ID=16946443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59232890A Granted JPS61110157A (en) | 1984-11-05 | 1984-11-05 | Toner for electrostatic charge image development |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61110157A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0822187B2 (en) * | 1992-11-13 | 1996-03-06 | 有限会社サン・ビー・シー | Mushroom cultivation method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6317460A (en) * | 1986-07-09 | 1988-01-25 | Kao Corp | Toner for developing electrostatic charge image |
-
1984
- 1984-11-05 JP JP59232890A patent/JPS61110157A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0822187B2 (en) * | 1992-11-13 | 1996-03-06 | 有限会社サン・ビー・シー | Mushroom cultivation method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61110157A (en) | 1986-05-28 |
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