JPH04156551A - Toner for developing electrostatic charge image - Google Patents
Toner for developing electrostatic charge imageInfo
- Publication number
- JPH04156551A JPH04156551A JP2283119A JP28311990A JPH04156551A JP H04156551 A JPH04156551 A JP H04156551A JP 2283119 A JP2283119 A JP 2283119A JP 28311990 A JP28311990 A JP 28311990A JP H04156551 A JPH04156551 A JP H04156551A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- resin
- powder
- fine grains
- grain size
- 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
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- 239000011347 resin Substances 0.000 claims abstract description 45
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- 229920002545 silicone oil Polymers 0.000 claims abstract description 22
- 239000002245 particle Substances 0.000 claims description 25
- 239000003795 chemical substances by application Substances 0.000 abstract description 8
- 239000003086 colorant Substances 0.000 abstract description 4
- 239000004925 Acrylic resin Substances 0.000 abstract description 2
- 229920000178 Acrylic resin Polymers 0.000 abstract description 2
- 239000000654 additive Substances 0.000 abstract description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 abstract description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 abstract 3
- 230000000996 additive effect Effects 0.000 abstract 1
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- 239000010419 fine particle Substances 0.000 description 16
- 239000000049 pigment Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- -1 polypropylene Polymers 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
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- 229920001577 copolymer Polymers 0.000 description 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 2
- 238000012674 dispersion polymerization Methods 0.000 description 2
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- 229910052759 nickel Inorganic materials 0.000 description 2
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Chemical class OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 108091008695 photoreceptors Proteins 0.000 description 2
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- 229920000573 polyethylene Polymers 0.000 description 2
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- 238000010298 pulverizing process Methods 0.000 description 2
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- 150000003839 salts Chemical class 0.000 description 2
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- 235000010215 titanium dioxide 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
- 239000001993 wax Substances 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- DHKHKXVYLBGOIT-UHFFFAOYSA-N 1,1-Diethoxyethane Chemical compound CCOC(C)OCC DHKHKXVYLBGOIT-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
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical class [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- HNNQYHFROJDYHQ-UHFFFAOYSA-N 3-(4-ethylcyclohexyl)propanoic acid 3-(3-ethylcyclopentyl)propanoic acid Chemical class CCC1CCC(CCC(O)=O)C1.CCC1CCC(CCC(O)=O)CC1 HNNQYHFROJDYHQ-UHFFFAOYSA-N 0.000 description 1
- LVOJOIBIVGEQBP-UHFFFAOYSA-N 4-[[2-chloro-4-[3-chloro-4-[(5-hydroxy-3-methyl-1-phenylpyrazol-4-yl)diazenyl]phenyl]phenyl]diazenyl]-5-methyl-2-phenylpyrazol-3-ol Chemical compound CC1=NN(C(O)=C1N=NC1=CC=C(C=C1Cl)C1=CC(Cl)=C(C=C1)N=NC1=C(O)N(N=C1C)C1=CC=CC=C1)C1=CC=CC=C1 LVOJOIBIVGEQBP-UHFFFAOYSA-N 0.000 description 1
- 229910002012 Aerosil® Inorganic materials 0.000 description 1
- RGCKGOZRHPZPFP-UHFFFAOYSA-N Alizarin Natural products C1=CC=C2C(=O)C3=C(O)C(O)=CC=C3C(=O)C2=C1 RGCKGOZRHPZPFP-UHFFFAOYSA-N 0.000 description 1
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- 229910052684 Cerium Inorganic materials 0.000 description 1
- REEFSLKDEDEWAO-UHFFFAOYSA-N Chloraniformethan Chemical compound ClC1=CC=C(NC(NC=O)C(Cl)(Cl)Cl)C=C1Cl REEFSLKDEDEWAO-UHFFFAOYSA-N 0.000 description 1
- 239000004709 Chlorinated polyethylene Substances 0.000 description 1
- 239000004641 Diallyl-phthalate Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- JHNCXGXWSIOXSX-UHFFFAOYSA-N [Nd+3].[O-2].[Fe+2] Chemical compound [Nd+3].[O-2].[Fe+2] JHNCXGXWSIOXSX-UHFFFAOYSA-N 0.000 description 1
- GZHZIMFFZGAOGY-UHFFFAOYSA-N [O-2].[Fe+2].[La+3] Chemical compound [O-2].[Fe+2].[La+3] GZHZIMFFZGAOGY-UHFFFAOYSA-N 0.000 description 1
- WQHONKDTTOGZPR-UHFFFAOYSA-N [O-2].[O-2].[Mn+2].[Fe+2] Chemical compound [O-2].[O-2].[Mn+2].[Fe+2] WQHONKDTTOGZPR-UHFFFAOYSA-N 0.000 description 1
- AUNAPVYQLLNFOI-UHFFFAOYSA-L [Pb++].[Pb++].[Pb++].[O-]S([O-])(=O)=O.[O-][Cr]([O-])(=O)=O.[O-][Mo]([O-])(=O)=O Chemical compound [Pb++].[Pb++].[Pb++].[O-]S([O-])(=O)=O.[O-][Cr]([O-])(=O)=O.[O-][Mo]([O-])(=O)=O AUNAPVYQLLNFOI-UHFFFAOYSA-L 0.000 description 1
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 1
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- HFVAFDPGUJEFBQ-UHFFFAOYSA-M alizarin red S Chemical compound [Na+].O=C1C2=CC=CC=C2C(=O)C2=C1C=C(S([O-])(=O)=O)C(O)=C2O HFVAFDPGUJEFBQ-UHFFFAOYSA-M 0.000 description 1
- AOADSHDCARXSGL-ZMIIQOOPSA-M alkali blue 4B Chemical compound CC1=CC(/C(\C(C=C2)=CC=C2NC2=CC=CC=C2S([O-])(=O)=O)=C(\C=C2)/C=C/C\2=N\C2=CC=CC=C2)=CC=C1N.[Na+] AOADSHDCARXSGL-ZMIIQOOPSA-M 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
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- QFFVPLLCYGOFPU-UHFFFAOYSA-N barium chromate Chemical compound [Ba+2].[O-][Cr]([O-])(=O)=O QFFVPLLCYGOFPU-UHFFFAOYSA-N 0.000 description 1
- RTVHKGIVFVKLDJ-UHFFFAOYSA-N barium(2+);iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Fe+3].[Fe+3].[Ba+2] RTVHKGIVFVKLDJ-UHFFFAOYSA-N 0.000 description 1
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- 239000010959 steel Substances 0.000 description 1
- 238000010558 suspension polymerization method Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- UJMBCXLDXJUMFB-UHFFFAOYSA-K trisodium;5-oxo-1-(4-sulfonatophenyl)-4-[(4-sulfonatophenyl)diazenyl]-4h-pyrazole-3-carboxylate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)C1=NN(C=2C=CC(=CC=2)S([O-])(=O)=O)C(=O)C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 UJMBCXLDXJUMFB-UHFFFAOYSA-K 0.000 description 1
- JEVGKYBUANQAKG-UHFFFAOYSA-N victoria blue R Chemical compound [Cl-].C12=CC=CC=C2C(=[NH+]CC)C=CC1=C(C=1C=CC(=CC=1)N(C)C)C1=CC=C(N(C)C)C=C1 JEVGKYBUANQAKG-UHFFFAOYSA-N 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000012463 white pigment Substances 0.000 description 1
- 239000001052 yellow pigment Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 235000014692 zinc oxide Nutrition 0.000 description 1
- NDKWCCLKSWNDBG-UHFFFAOYSA-N zinc;dioxido(dioxo)chromium Chemical compound [Zn+2].[O-][Cr]([O-])(=O)=O NDKWCCLKSWNDBG-UHFFFAOYSA-N 0.000 description 1
Landscapes
- 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、電子写真複写機等の画像形成装置に用いられ
る静電荷像現像用トナーに関し、より詳細には流動性に
優れた静電荷像現像用トナーに関する。Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a toner for developing an electrostatic image that is used in an image forming apparatus such as an electrophotographic copying machine, and more specifically to a toner for developing an electrostatic image that has excellent fluidity. Regarding developing toner.
(従来の技術)
電子写真複写機等の画像形成装置において、感光体に形
成された静電潜像を乾式現像法により可視化するための
現像剤として、一般に、結着樹脂と着色剤等の添加剤と
で構成されるトナーとキャリアとを含む二成分系現像剤
が使用されている。(Prior Art) In an image forming apparatus such as an electrophotographic copying machine, a binder resin and a coloring agent are generally added as a developer for visualizing an electrostatic latent image formed on a photoreceptor using a dry development method. A two-component developer is used, which includes a toner and a carrier.
このような二成分系現像剤は、攪拌により均一に混合さ
れた状態で用いられる。攪拌により、トナーはキャリア
との摩擦によって帯電し牛ヤリア表面に付着する。そし
て、帯電および露光の各工程を経て、感光体上に形成さ
れる静電潜像は、このトナーにより現像される。得られ
たトナー像は転写紙等の支持体に転写され、そして定着
手段によって支持体上に定着される。このようにして原
稿の複写物が得られる。Such a two-component developer is used after being uniformly mixed by stirring. By stirring, the toner is charged by friction with the carrier and adheres to the surface of the toner. The electrostatic latent image formed on the photoreceptor through the charging and exposure steps is developed with this toner. The obtained toner image is transferred to a support such as transfer paper, and then fixed onto the support by a fixing means. In this way, a copy of the original is obtained.
このようなトナーとキャリアとを含む二成分現像剤を用
いた磁気ブラシ現像法において、現像を良好に行うため
には、トナーが良好な流動性を有していることが必要で
ある。In such a magnetic brush development method using a two-component developer containing a toner and a carrier, the toner needs to have good fluidity in order to perform development well.
ところで、画像濃度の低下やカブリの増大を防止したト
ナーとして、特開昭60−186854号公報には、ト
ナー粉末と、このトナー粉末の平均粒径より小さい平均
粒径を有する微粉末(ソープフリー重合法により得たも
の)とを含有する静電荷像現像用のトナーが提案されて
いる。By the way, as a toner that prevents a decrease in image density and an increase in fog, JP-A-60-186854 discloses a toner powder and a fine powder (soap-free) having an average particle diameter smaller than the average particle diameter of the toner powder. A toner for developing an electrostatic image containing a toner (obtained by a polymerization method) has been proposed.
(発明が解決しようとする課題)
上記したトナーにおいては、微粉末の分散性が悪く凝集
し易いという欠点かあり、しかも得られたトナーの流動
性が悪いために、複写が行われるにつれて画質の低下を
招くという欠点があった。(Problems to be Solved by the Invention) The above-mentioned toner has the disadvantage that the fine powder has poor dispersibility and is prone to agglomeration, and furthermore, the resulting toner has poor fluidity, resulting in poor image quality as copying is performed. It had the disadvantage of causing a decline.
特に、正荷電制御剤を配合した正帯電性トナーにあって
は、その荷電制御剤は親水性を有するものが多いのでト
ナーの流動性がさらに低下して良好な画質が得られない
ものであり、さらに荷電制御剤としてニグロンン染料を
用いた場合には、変質し易く安定性に欠けるという欠点
があった。In particular, in the case of positively chargeable toner containing a positive charge control agent, the charge control agent often has hydrophilic properties, which further reduces the fluidity of the toner, making it impossible to obtain good image quality. Furthermore, when Nigron dye is used as a charge control agent, it has the drawback of being easily altered and lacking in stability.
本発明は、上記の欠点を解決したものであり、その目的
とするところは、微粒子の分散性とトナーの流動性を向
上させることにより、長期間に亘って良好な画質を形成
することができる静電荷像現像用トナーを提供すること
にある。本発明の他の目的は、安定に優れた正帯電性の
トナーを提供することにある。The present invention solves the above-mentioned drawbacks, and its purpose is to improve the dispersibility of fine particles and the fluidity of toner, thereby making it possible to form good image quality over a long period of time. An object of the present invention is to provide a toner for developing electrostatic images. Another object of the present invention is to provide a positively chargeable toner with excellent stability.
(課題を解決するための手段)
本発明の静電荷像現像用トナーは、トナー粉末と、該ト
ナー粉末の平均粒径に比べて小さい平均粒径を有する樹
脂微粒子と、を含有し該樹脂微粒子は、アミノ変性ンリ
コーンオイルで処理されたものであり、そのことにより
上Sピロ的が達成される。(Means for Solving the Problems) The toner for developing an electrostatic image of the present invention contains toner powder and fine resin particles having an average particle size smaller than the average particle size of the toner powder. is treated with amino-modified silicone oil, thereby achieving superior S-pyrolysis.
(作用)
本発明の静電荷像現像用トナーに使用する樹脂微粒子は
上記アミノ変性シリコーンオイルで表面処理されている
ので、樹脂微粒子の流動性が向上し、そのことにより樹
脂微粒子はトナー粉末と均一に分散することになり、l
・ナーの流動性が向上する。また、アミノ変性/リコー
ンオイルで表面処理された樹脂微粒子は、強い正帯電性
を有しており湿度安定性が高く、従って、高湿度下で使
用される場合でも良好な正帯電性を有するトナーが得ら
れる。(Function) Since the resin particles used in the toner for developing electrostatic images of the present invention are surface-treated with the above-mentioned amino-modified silicone oil, the fluidity of the resin particles is improved, and as a result, the resin particles are uniform with the toner powder. It will be dispersed into l
・Improves the fluidity of the gel. In addition, the resin particles surface-treated with amino-modified/licon oil have strong positive chargeability and high humidity stability. Therefore, the toner has good positive chargeability even when used under high humidity. is obtained.
(発明の好適態様)
本発明に用いられる粉末トナーとしては、従来から乾式
現像法で使用されている公知のトナーが使用され、結着
樹脂中に着色剤、電荷制御剤等の添加剤が分散された粉
体状のトナーである。このようなトナー粉末は、従来公
知の方法によって製造されたものを使用することができ
、例えば、トナーの各材料を溶融混練した後、粉砕しお
よび分級を行って得られる粉砕法や、各種重合法(例え
ば、懸濁重合法、分散重合法等)によって得ることがで
きる。(Preferred embodiment of the invention) As the powder toner used in the present invention, a known toner conventionally used in a dry development method is used, and additives such as a colorant and a charge control agent are dispersed in a binder resin. It is a powdered toner. Such toner powder can be produced by a conventionally known method, such as a pulverization method in which each toner material is melt-kneaded, then pulverized and classified, or It can be obtained by a legal method (for example, suspension polymerization method, dispersion polymerization method, etc.).
トナー粉末に使用される結着樹脂としては、例えば熱硬
化性樹脂や未硬化の形のあるいは初期縮合物の形の熱硬
化性樹脂で、融点乃至軟化点が60〜200℃の範囲に
あるものが使用される。その適当な例は、これに限定さ
れないが、例えば、ポリスチレン、アクリル系重合体、
スチレンーア’y l) ル共重合体、塩素化ポリエチ
レン、ポリプロピレン、アイオノマー等のオレフィン系
重合体、ポリ塩化ビニル、ポリエステル、ポリアミド、
ポリウレタン、エポキシ樹脂、ジアリルフタレート樹脂
、シリコーン樹脂、ケトン樹脂、ポリビニルブチラール
樹脂等のポリビニルアセタール樹脂、フェノール樹脂、
ロジン変性フェノール樹脂、キンレン樹脂、ロジン変性
マレイン酸樹脂、ロジンエステル、石油樹脂など各種重
合体があげられる。これら樹脂の選択は定着方法その他
の必要とされる特性に応じて任意に行われる。このうち
、粉砕性及び分子量分布の制御が簡単であることから、
ポリスチレン、アクリル系重合体またはスチレン−アク
リル重合体が好ましく、特にスチレン−アクリル重合体
が好ましい。これらの樹脂は重量平均分子量が30.0
00〜200.000であることが好ましく、特に50
.000〜150.000の範囲が好ましい。重合体は
一種または二種以上が混合して用いられる。The binder resin used in the toner powder is, for example, a thermosetting resin or a thermosetting resin in an uncured form or in the form of an initial condensate, and has a melting point or softening point in the range of 60 to 200°C. is used. Suitable examples include, but are not limited to, polystyrene, acrylic polymers,
Styrene-based copolymers, chlorinated polyethylene, polypropylene, olefinic polymers such as ionomers, polyvinyl chloride, polyester, polyamide,
Polyurethane, epoxy resin, diallyl phthalate resin, silicone resin, ketone resin, polyvinyl acetal resin such as polyvinyl butyral resin, phenol resin,
Examples include various polymers such as rosin-modified phenolic resin, rosin-modified maleic resin, rosin-modified maleic acid resin, rosin ester, and petroleum resin. These resins are arbitrarily selected depending on the fixing method and other required properties. Among these, because it is easy to control the crushability and molecular weight distribution,
Polystyrene, acrylic polymers or styrene-acrylic polymers are preferred, and styrene-acrylic polymers are particularly preferred. These resins have a weight average molecular weight of 30.0
00 to 200.000, especially 50.000
.. A range of 000 to 150.000 is preferred. One type of polymer or a mixture of two or more types may be used.
使用するトナー粉末が圧力定着性トナーであるときは、
ポリエチレン、ポリプロピレン等のオレフィン系重合体
、ポリアミド等の容易に塑性変形する重合体を含有させ
るのが好ましい。この重合体は他の重合体、例えば、ポ
リ酢酸ビニル、エチレン−酢酸ビニル共重合体、水素化
ポリエチレン、水素ロジンエステル等の重合体、脂肪族
、指環族または芳香族系石油樹脂等を含有してもよい。When the toner powder used is a pressure fixing toner,
It is preferable to contain an olefin polymer such as polyethylene or polypropylene, or a polymer that is easily plastically deformed such as polyamide. This polymer may contain other polymers such as polyvinyl acetate, ethylene-vinyl acetate copolymer, hydrogenated polyethylene, hydrogen rosin ester, aliphatic, ring group or aromatic petroleum resin, etc. You can.
上記電荷制御剤としては、例えば、ニグロシン染料、オ
イルブラック、スピロンブラックなどの油溶性染料や、
ナフテン酸、サリチル酸、オクチル酸、脂肪酸、樹脂酸
のマンガン、鉄、コバルト、ニッケル、鉛、亜鉛、セリ
ウム、カルシウムなどの金属塩である金属石鹸など、あ
るいは含金属アゾ染料、ピリミジン化合物、アル牛ルサ
リチル酸金属キレートなどがあげられ、結着樹脂100
重量部当り0.1〜5重量部が好ましく用いられる。Examples of the charge control agent include oil-soluble dyes such as nigrosine dye, oil black, and spirone black;
Metal soaps, which are metal salts of naphthenic acid, salicylic acid, octylic acid, fatty acids, resin acids such as manganese, iron, cobalt, nickel, lead, zinc, cerium, calcium, etc., metal-containing azo dyes, pyrimidine compounds, alcohol Examples include salicylic acid metal chelate, binder resin 100
0.1 to 5 parts by weight per part by weight is preferably used.
上記顔料としては、着色顔料の他に、磁性顔料、導電性
顔料等、従来トナーに使用されている各種顔料がいずれ
も使用される。その適当な例はこれに限定されないが次
の通りである。As the pigment, in addition to coloring pigments, any of various pigments conventionally used in toners, such as magnetic pigments and conductive pigments, can be used. Suitable examples include, but are not limited to:
黒色顔料 チャンネルフ゛ラック、ファーネスブラック、鉄黒。black pigment Channel black, furnace black, iron black.
黄色顔料
黄鉛、亜鉛黄、カドミウムイエロー、黄色酸化鉄、ミネ
ラルファーストイエロー、ニッケルイエロー、ニッケル
チタンイエロー、不−フ゛ルスイエロー、テフトールイ
エロー31 ハンサイエO−10G。Yellow pigment yellow lead, zinc yellow, cadmium yellow, yellow iron oxide, mineral first yellow, nickel yellow, nickel titanium yellow, fiss yellow, teftol yellow 31 Hansaie O-10G.
ベンジジンイエローG、 牛ノリンイエロー、パーマ
ネントイエローNGG、 タートラジンレーキ。Benzidine Yellow G, Ushi Norin Yellow, Permanent Yellow NGG, Tartrazine Lake.
橙色顔料
赤口黄鉛、モリブデンオレンジ、パーマネントオレンジ
GTR,ピラゾロンオレンジ、バルカンオレジ、インダ
ンスレンブリリアントオレンジRK、 ベンジジンオ
レンジG1 インダンスレンブリリアントオレンジG
K。Orange pigment red yellow lead, molybdenum orange, permanent orange GTR, pyrazolone orange, Vulcan ore, indanthrene brilliant orange RK, benzidine orange G1 indanthrene brilliant orange G
K.
赤色顔料
ベンガラ、カドミウムレッド、鉛丹、硫化水銀カドミウ
ム、パーマネントオレンジ4R,リソールレッド、ピラ
ゾロンレッド、ウォソチンダレッド力ルンウム塩、レー
キレッドD1 ブリリアントヵーミン6B、 エオ
シンレーキ、ロータミンレーキB1 アリザリンレー
キ、ブリリアントカーダン3B0紫色覇料
マンガン紫、ファストバイレットB1 メチルバイオ
レノトレー牛。Red pigment red pigment Red Garla, Cadmium Red, Red Lead, Mercury Cadmium Sulfide, Permanent Orange 4R, Lysole Red, Pyrazolone Red, Wosochinda Red Power Runum Salt, Lake Red D1, Brilliant Carmine 6B, Eosin Lake, Rotamin Lake B1, Alizarin Lake, Brilliant Cardan 3B0 Purple Hegemony Manganese Purple, Fast Vilet B1 Methyl Violenotray Cow.
青色顔料
紺青、コバルトブルー、アルカリブルーレーキ、ビクト
リアブルーレーキ、フタロシアニンブルー、無金属フタ
ロシアニンブルー、フタロシアニンブル一部分塩素化物
、ファーストスカイブルー、インダンスレンブル−BC
。Blue pigments navy blue, cobalt blue, alkali blue lake, Victoria blue lake, phthalocyanine blue, metal-free phthalocyanine blue, phthalocyanine blue partially chlorinated product, first sky blue, indanthremble-BC
.
緑色顔料
クロムグリーン、酸化クロム、ピグメントグリーンB、
マラカイトグリーンレーキ、ファナルイエローグリーン
G0
白色顔料
二酸化チタン(チタン白)、亜鉛華。Green pigment chrome green, chromium oxide, pigment green B,
Malachite Green Lake, Final Yellow Green G0 White pigment titanium dioxide (titanium white), zinc white.
体質顔料
バラカイト粉、炭酸バリウム、クレー、シリカ、ホワイ
トカーボン、タルク、アルミホワイト。Extender pigments barachite powder, barium carbonate, clay, silica, white carbon, talc, aluminum white.
磁性材料顔料としては、例えば、四三酸化鉄、三二酸化
鉄、酸化鉄亜鉛、酸化鉄イツトリウム、酸化カドミウム
、酸化鉄鋼、酸化鉄錯、酸化鉄ネオジウム、酸化鉄バリ
ウム、酸化鉄マンガン、酸化鉄ランタン、鉄粉、コバル
ト粉、ニッケル粉等が知られているが、本発明において
もこれら公知の磁性材料の微粉末の任意のものを用いる
ことができる。Examples of magnetic material pigments include triiron tetroxide, iron sesquioxide, zinc iron oxide, yttrium iron oxide, cadmium oxide, iron and steel oxide, iron oxide complex, neodymium iron oxide, barium iron oxide, iron manganese oxide, and lanthanum iron oxide. , iron powder, cobalt powder, nickel powder, etc., and any of these known fine powders of magnetic materials can be used in the present invention.
これらの顔料は複数の機能を有するものであってもよい
。例えば、カーボンブラックは黒色顔料としての機能と
導電性顔料としての機能とを備えている。同様に、鉄黒
(マグネタイト)は黒色顔料としての機能と磁性顔料と
しての機能を備えている。These pigments may have multiple functions. For example, carbon black has the functions of a black pigment and a conductive pigment. Similarly, iron black (magnetite) has the functions of a black pigment and a magnetic pigment.
これらの着色剤は一種または二種以上が混合して用いら
れ、充分なトナー画像濃度が得られる量は、例えば、ト
ナー中に5〜15重量%、特に7〜12重量%の量で存
在するのがよい。These colorants are used alone or in a mixture of two or more, and the amount to obtain a sufficient toner image density is, for example, 5 to 15% by weight, particularly 7 to 12% by weight. It is better.
さらに、上記トナー粉末には、定着ローラにトナー粉末
が付着するのを防止するために、オフセット防止剤が含
有され得る。オフセット防止剤には、例えば、各種動植
物ワックス、ボリュチレンワックス、ポリプロピレンワ
ックス等が使用され、これらは一般にトナー粉末中に1
〜5重量%の量で配合される。Further, the toner powder may contain an anti-offset agent to prevent the toner powder from adhering to the fixing roller. For example, various animal and plant waxes, volutelene wax, polypropylene wax, etc. are used as offset inhibitors, and these are generally added to the toner powder at a concentration of 1%.
It is blended in an amount of ~5% by weight.
本発明におけるトナー粉末の製造方法は、従来のトナー
の製造工程と同様であるので特に詳細に記述しない。得
られたトナー粉末の粒径はコールカウンターによる体積
基準の平均粒径か5〜30μmが好ましく、特に5〜1
5μmが好ましい。The method for manufacturing toner powder in the present invention is similar to the conventional toner manufacturing process, so it will not be described in detail. The particle size of the obtained toner powder is preferably 5 to 30 μm, particularly 5 to 1
5 μm is preferred.
本発明に用いられる樹脂微粒子は、上記したトナー粉末
の平均粒径に比べて小さい平均粒径を宵する樹脂の微粒
子である。樹脂微粒子を構成する樹脂としては、例えば
、アクリル樹脂、アクリル−ウレタン樹脂等があげられ
る。樹脂微粒子の平均粒径は0.05〜5μmが好まし
く、01〜4μm力さらに好ましい。特に、分散重合、
乳化重合、ソープフリー重合及び粉砕法によって得られ
た平均粒径01〜4μmのアクリル微粒子が好ましい。The resin fine particles used in the present invention are resin fine particles having a smaller average particle size than the average particle size of the toner powder described above. Examples of the resin constituting the resin fine particles include acrylic resin, acrylic-urethane resin, and the like. The average particle diameter of the resin fine particles is preferably 0.05 to 5 μm, more preferably 01 to 4 μm. In particular, dispersion polymerization,
Acrylic fine particles with an average particle size of 01 to 4 μm obtained by emulsion polymerization, soap-free polymerization, and pulverization are preferred.
この樹脂微粒子はアミノ変性シリコーンオイルて処理さ
れている。アミノ変性シリコーンオイルとしては、例え
ば、一般式が次式(A)、 (B)で表されるものが使
用される。These resin particles are treated with amino-modified silicone oil. As the amino-modified silicone oil, for example, those whose general formulas are represented by the following formulas (A) and (B) are used.
R:CI−b 4 f〜はQC)h
アミノ変性シリコンオイルの市販品としては、次のもの
が例示される。R: CI-b4f~ is QC)h Examples of commercially available amino-modified silicone oils include the following.
■信越ンリコーン■製・・・KF393、KF857、
KF858、KF859、KF860、KF861、K
F862、KF864、KFll165、X−22−3
680、X−22−380D、 X−22−3801C
SKF867゜■トーレシリコーン■製−,5F841
7、BY 16−828、B Y 1.6−849、B
Yl6−850、BYl6−859、BYl6−872
、BYl6−853、BYl、6−8538゜
■東芝シリコーン銖製・TSF4452、TSF470
0. TSF4701、TSF4702゜
アミノ変性シリコーンオイルは、これらのうぢから少な
くとも一種が選択される。■Made by Shinetsu Henricorn■...KF393, KF857,
KF858, KF859, KF860, KF861, K
F862, KF864, KFll165, X-22-3
680, X-22-380D, X-22-3801C
SKF867゜■Made of Toray silicone■, 5F841
7, BY 16-828, BY 1.6-849, B
Yl6-850, BYl6-859, BYl6-872
, BYl6-853, BYl, 6-8538゜■Made by Toshiba silicone, TSF4452, TSF470
0. At least one type of the TSF4701 and TSF4702 amino-modified silicone oils is selected from these groups.
これらアミノ変性シリコーンオイルの処理量は、樹脂微
粒子に対して0.01〜5重量%が好ましく、さらに好
ましくは0,05〜2重量%である。アミノ変性シリコ
ーンオイルの処理量がo、onj1%より少ないと、樹
脂微粒子の流動性を向上させる効果、樹脂微粒子の分散
性およびトナーの流動性を同士させる効果が小さくなり
、5重量%より多いとかえって樹脂微粒子の流動性が低
下する傾向にある。The amount of these amino-modified silicone oils to be treated is preferably 0.01 to 5% by weight, more preferably 0.05 to 2% by weight based on the resin fine particles. If the processing amount of amino-modified silicone oil is less than 1% by weight, the effect of improving the fluidity of resin particles, the effect of improving the dispersibility of resin particles and the fluidity of toner will be reduced, and if it is more than 5% by weight, On the contrary, the fluidity of the resin particles tends to decrease.
アミノ変性シリコーンオイルを微粒子に処理するには、
従来公知の種々の方法および装置を用いて行うことがで
き、例えば、アミノ変性シリコーンオイル中に上記樹脂
微粒子を浸漬し又はそのオイルを樹脂微粒子に塗布し、
その後乾燥すればよい。To process amino-modified silicone oil into fine particles,
It can be carried out using various conventionally known methods and devices, for example, by immersing the resin fine particles in amino-modified silicone oil or applying the oil to the resin fine particles,
Then dry it.
本発明のトナーには、疎水性シリカ等の流動性改質剤を
トナー当り0,1〜0,5重量%の量で配合することも
でき、上記トナー粉末、樹脂微粒子及び必要に応じて流
動性改良剤を混合機中でまぶし、処理して本発明に係る
トナーが得られる。The toner of the present invention may also contain a fluidity modifier such as hydrophobic silica in an amount of 0.1 to 0.5% by weight based on the toner. The toner according to the invention is obtained by sprinkling the properties improver in a mixer and processing.
本発明のトナーは、フェライトや鉄粉等の磁性キャリア
と混合し二成分系現像剤として、またトナー中に磁性顔
料が含有されている場合には一成分系現像剤として静電
潜像の現像に使用される。The toner of the present invention can be mixed with a magnetic carrier such as ferrite or iron powder as a two-component developer, or when the toner contains a magnetic pigment, can be used as a one-component developer to develop electrostatic latent images. used for.
(発明の効果)
本発明によれば、微粒子をアミノ変性シリコーンオイル
で処理することによって、微粒子の流動性を改良し、そ
れによって分散性を向上してトナーの流動性を改良する
ことができる。従って、画質の変動の少ない良好な画像
が形成されると共に、帯電量の低下など現像特性が劣る
ことのない耐久性に優れた静電荷像現像用トナーを提供
することができる。また、高湿度下で使用される場合で
も良好な正帯電性を有するトナーを提供することができ
る。(Effects of the Invention) According to the present invention, by treating the fine particles with amino-modified silicone oil, the fluidity of the fine particles can be improved, thereby improving the dispersibility and improving the fluidity of the toner. Therefore, it is possible to provide an electrostatic image developing toner that can form a good image with little variation in image quality and has excellent durability without deterioration in development characteristics such as a decrease in the amount of charge. Further, it is possible to provide a toner having good positive chargeability even when used under high humidity.
(実施例) 以下、本発明を実施例に基づいて説明する。(Example) Hereinafter, the present invention will be explained based on examples.
尖1!口。Tip 1! mouth.
スチレン/n−ブチルアクリレート共重合体100重量
部
カーボンブラック(三菱化成社製、#44)10重量部
電荷制御剤(オリエント化学社製、ボントロンN−01
) 1重量部ポリプロピレン(三菱
化成社製、ビスコール660P)2重量部
上記処方よりなる混合物を溶融混練した後、ジェットミ
ルを用いて粉砕し、分級を行って、平均粒径11,0μ
閣のトナー粉末を得た。Styrene/n-butyl acrylate copolymer 100 parts by weight Carbon black (manufactured by Mitsubishi Kasei Co., Ltd., #44) 10 parts by weight Charge control agent (manufactured by Orient Chemical Co., Ltd., Bontron N-01
) 1 part by weight of polypropylene (manufactured by Mitsubishi Kasei Corporation, Viscoll 660P) 2 parts by weight After melt-kneading the mixture consisting of the above formulation, it was pulverized using a jet mill and classified to obtain an average particle size of 11.0 μm.
I got Kakaku toner powder.
一方、攪拌装置、温度計、還流冷却器、窒素ガス導入管
を備えた四つロフラスコにメチルメタクリレート500
重量部、過硫酸カリウム0.3重量部、ポリビニルアル
コール0,3重量部を仕込み、窒素気流中80°Cで4
時間反応を行った。重合終了後、遠心分離、水洗、乾燥
を行って平均粒径0.2μmのアクリル微粒子を得た。Meanwhile, methyl methacrylate 500 was placed in a four-bottle flask equipped with a stirrer, a thermometer, a reflux condenser, and a nitrogen gas inlet tube.
parts by weight, 0.3 parts by weight of potassium persulfate, and 0.3 parts by weight of polyvinyl alcohol, and heated at 80°C in a nitrogen stream for 4 hours.
A time reaction was performed. After the polymerization was completed, centrifugation, water washing, and drying were performed to obtain acrylic fine particles with an average particle size of 0.2 μm.
このアクリル微粒子100重量部とアミノ変性シリコー
ンオイル(信越化学社製、KF393) 1重量部とを
高速攪拌装置を用いて攪拌し、次に80℃で1時間乾燥
して処理微粉末を得た。100 parts by weight of the acrylic fine particles and 1 part by weight of amino-modified silicone oil (manufactured by Shin-Etsu Chemical Co., Ltd., KF393) were stirred using a high-speed stirring device, and then dried at 80° C. for 1 hour to obtain a treated fine powder.
前記トナー粉末100重量部、処理微粉末0.3重量部
および疎水性シリカ(日本アエロジル社製、R972)
0.2fi量部をヘンシェルミキサーを用いて混合攪
拌してトナーを得た。100 parts by weight of the above toner powder, 0.3 parts by weight of treated fine powder, and hydrophobic silica (manufactured by Nippon Aerosil Co., Ltd., R972)
A toner was obtained by mixing and stirring 0.2 fi parts using a Henschel mixer.
このトナー4重量部と平均粒径80μmのフェライトキ
ャリア96重量部を混合することにより現像剤を作成し
、この現像剤を三田工業■社製DC−2055改造機に
搭載して(温度:35°C1湿度80%)の環境下で5
万枚の画像出しを行った。その結果を表1に示す。A developer was prepared by mixing 4 parts by weight of this toner and 96 parts by weight of a ferrite carrier having an average particle size of 80 μm, and this developer was loaded into a DC-2055 modified machine manufactured by Sanda Kogyo ■ (temperature: 35°C). 5 in an environment of C1 humidity 80%)
We created 10,000 images. The results are shown in Table 1.
K皿匠ニ
アミノ変性シリコーンオイル(信越化学社製、KF39
3) 1重量部のかわりに、アミノ変性シリコーンオイ
ル(信越化学社製、KF873) 1重量部を用いた
以外は、実施例1と同様に行ってトナーを得た。K Sarasho Niamino modified silicone oil (manufactured by Shin-Etsu Chemical Co., Ltd., KF39
3) A toner was obtained in the same manner as in Example 1, except that 1 part by weight of amino-modified silicone oil (manufactured by Shin-Etsu Chemical Co., Ltd., KF873) was used instead of 1 part by weight.
得られたトナーについて、実施例1と同様の評価を行っ
た。その結果を表1に併せて示す。The obtained toner was evaluated in the same manner as in Example 1. The results are also shown in Table 1.
匿炙匠よ
処理微粉末を用いない以外は、実施例1と同様に行って
トナーを得た。得られたトナーについて、実施例1と同
様の評価を行った。その結果を表1に併せて示す。A toner was obtained in the same manner as in Example 1 except that the treated fine powder was not used. The obtained toner was evaluated in the same manner as in Example 1. The results are also shown in Table 1.
匿Δ丘主
処理微粉末のかわりに、実施例1で得られた未処理のア
クリル微粒子を用いた以外は、実施例1と同様に行って
トナーを得た。得られたトナーについて、実施例1と同
様の評価を行った。その結果を表1に併せて示す。A toner was obtained in the same manner as in Example 1, except that the untreated acrylic fine particles obtained in Example 1 were used instead of the Δhill main-treated fine powder. The obtained toner was evaluated in the same manner as in Example 1. The results are also shown in Table 1.
之Δ匠主
アミノ変性シリコーンオイル(信越化学社製、KF39
3) 1重量部のかわりに、シリコーンオイル〔信越化
学社製、KF−9650cs (これはジメチルシリコ
ーンオイルである〕 1重量部を用いた以外は、実施例
1と同様に行ってトナーを得た。得られたトナーについ
て、実施例1と同様の評価を行った。ΔTakumi amino-modified silicone oil (manufactured by Shin-Etsu Chemical Co., Ltd., KF39
3) A toner was obtained in the same manner as in Example 1, except that 1 part by weight of silicone oil [manufactured by Shin-Etsu Chemical Co., Ltd., KF-9650cs (this is dimethyl silicone oil] was used instead of 1 part by weight). The obtained toner was evaluated in the same manner as in Example 1.
その結果を表1に併せて示す。The results are also shown in Table 1.
(以下余白)
表1の結果から、処理微粉末を用いない場合(比較例1
)では5万枚耐刷後の画像濃度(1,D、)およびカブ
リ濃度(F、D、)が増大し、また、未処理の樹脂微粉
末を用いた場合(比較例2)でも耐刷後のカブリ濃度(
F、D、)が増大している。(Left below) From the results in Table 1, it can be seen that when no treated fine powder is used (Comparative Example 1)
), the image density (1, D, ) and fog density (F, D,) increased after printing 50,000 sheets, and even when untreated fine resin powder was used (Comparative Example 2), the printing durability increased. After fog density (
F, D,) are increasing.
さらに、アミノ変性されていない/リコーンンオイルで
処理した樹脂微粒子を用いた場合にもそれらの特性が不
十分である。これに対して、本実施例ではいずれも画像
濃度や画像特性が満足していることが確認された。Furthermore, even when resin fine particles that are not amino-modified/treated with silicone oil are used, their properties are insufficient. On the other hand, in this example, it was confirmed that the image density and image characteristics were all satisfactory.
以上that's all
Claims (1)
さい平均粒径を有する樹脂微粒子と、を含有する静電荷
像現像用トナーであって、 該樹脂微粒子は、アミノ変性シリコーンオイルで処理さ
れたものである静電荷像現像用トナー。[Scope of Claims] 1. A toner for developing an electrostatic image, comprising a toner powder and fine resin particles having an average particle size smaller than the average particle size of the toner powder, the fine resin particles comprising: A toner for developing electrostatic images that is treated with amino-modified silicone oil.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2283119A JPH04156551A (en) | 1990-10-19 | 1990-10-19 | Toner for developing electrostatic charge image |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2283119A JPH04156551A (en) | 1990-10-19 | 1990-10-19 | Toner for developing electrostatic charge image |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH04156551A true JPH04156551A (en) | 1992-05-29 |
Family
ID=17661473
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2283119A Pending JPH04156551A (en) | 1990-10-19 | 1990-10-19 | Toner for developing electrostatic charge image |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH04156551A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100774287B1 (en) * | 2006-12-19 | 2007-11-08 | 제일모직주식회사 | Toner and method of preparing the same |
KR100774279B1 (en) * | 2006-12-18 | 2007-11-08 | 제일모직주식회사 | Toner and method of preparing the same |
KR100774282B1 (en) * | 2006-12-19 | 2007-11-08 | 제일모직주식회사 | Toner and method of preparing the same |
-
1990
- 1990-10-19 JP JP2283119A patent/JPH04156551A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100774279B1 (en) * | 2006-12-18 | 2007-11-08 | 제일모직주식회사 | Toner and method of preparing the same |
WO2008075799A1 (en) * | 2006-12-18 | 2008-06-26 | Cheil Industries Inc. | Toner and method of preparing the same |
KR100774287B1 (en) * | 2006-12-19 | 2007-11-08 | 제일모직주식회사 | Toner and method of preparing the same |
KR100774282B1 (en) * | 2006-12-19 | 2007-11-08 | 제일모직주식회사 | Toner and method of preparing the same |
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