JPH01237562A - Production of dry process toner for electrostatic copying - Google Patents
Production of dry process toner for electrostatic copyingInfo
- Publication number
- JPH01237562A JPH01237562A JP63065442A JP6544288A JPH01237562A JP H01237562 A JPH01237562 A JP H01237562A JP 63065442 A JP63065442 A JP 63065442A JP 6544288 A JP6544288 A JP 6544288A JP H01237562 A JPH01237562 A JP H01237562A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- raw material
- mixing
- toner
- vessel
- 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 9
- 238000001035 drying Methods 0.000 title 1
- 239000000843 powder Substances 0.000 claims abstract description 36
- 239000002994 raw material Substances 0.000 claims abstract description 28
- 238000002156 mixing Methods 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 239000002245 particle Substances 0.000 claims description 20
- 238000010298 pulverizing process Methods 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000009700 powder processing Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000005469 granulation Methods 0.000 claims description 4
- 230000003179 granulation Effects 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000007790 scraping Methods 0.000 claims description 2
- 229920005992 thermoplastic resin Polymers 0.000 claims description 2
- 239000013067 intermediate product Substances 0.000 claims 1
- 238000000465 moulding Methods 0.000 claims 1
- 239000000047 product Substances 0.000 abstract description 16
- 238000001816 cooling Methods 0.000 abstract description 7
- 238000004898 kneading Methods 0.000 abstract description 7
- 238000000265 homogenisation Methods 0.000 abstract description 6
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000004513 sizing Methods 0.000 abstract description 2
- 239000011265 semifinished product Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 17
- 239000010410 layer Substances 0.000 description 6
- 239000000654 additive Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 238000007873 sieving Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 2
- 239000011362 coarse particle Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000011027 product recovery Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010303 mechanochemical reaction Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 239000002344 surface layer Substances 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
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に使用される乾式静電複写用ト
ナーの製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method for producing toner for dry electrostatic copying used in electrophotographic copying machines.
（従来技術）
従来、乾式静電複写用トナーの製造方法としては第５図
に示すようにカーボンブラックと熱可塑性樹脂粉末およ
び荷電制御剤などの原料を予備混合したのち、混練機に
投入して加熱溶融させて混練物を造り出す混練工程、で
きた混練物をロール等で板状に延ばし冷却ベルト上で常
温程度に冷やす冷却工程、これを粉砕機で適当な大きさ
に粗粉砕する第１の粉砕工程、さらにジェットミル等で
微粉砕する第２の粉砕工程を経て熱気流型の流動造粒装
置に送り込んで熱溶融させて球形の粒状物を得る。次に
、これを分級工程により選別する。(Prior Art) Conventionally, as shown in Fig. 5, the method for manufacturing toner for dry electrostatic copying involves premixing raw materials such as carbon black, thermoplastic resin powder, and charge control agent, and then feeding the mixture into a kneader. A kneading process involves heating and melting to create a kneaded product, a cooling process in which the resulting kneaded product is rolled into a plate shape using rolls, etc., and cooled to around room temperature on a cooling belt; After a pulverization step and a second pulverization step of finely pulverizing the product using a jet mill or the like, it is fed into a hot air flow type fluidized granulator and thermally melted to obtain spherical granules. Next, this is sorted through a classification process.
まず、第１の分級工程で粗粒物を除去し、さらに第２の
分級工程で微粉を除去する。このようにして選り分けら
れたものにコーティング剤や荷電制御剤等の添加物を加
え、均質化のため混合処理した後、篩分けにより異物を
除去して製品とする。First, coarse particles are removed in a first classification step, and fine particles are further removed in a second classification step. Additives such as a coating agent and a charge control agent are added to the thus sorted material, mixed for homogenization, and then sieved to remove foreign substances to produce a product.
なお、第１の分級工程で取り除かれた粗粒物はジェット
ミルに戻して再粉砕し、第２の分級工程で取り除かれた
微粉は混練工程に戻して再利用される。Incidentally, the coarse particles removed in the first classification step are returned to the jet mill and re-pulverized, and the fine particles removed in the second classification step are returned to the kneading step and reused.
（発明が解決しようとするｉｉ題）
このように従来方法では、原料の予備混合から始まり加
熱混練、混練物の冷却と粉砕、球形化と分級選別、添加
物混入と均質化混合、異物除去のための篩分けなど多く
の工程を経なければならなかった。そのため装置の大型
化と複雑化は避けられず、設備と運転の両経贋面、およ
び効率面からも改良が望まれる。また、装置が大型化、
複雑化するにつれて粉、砕機を始め分級機、流動造粒装
置、混合機などの内壁や各工程を接続する配管内に付着
滞留する原料粉体の量も多くなり、しかも異物混入の度
合も多くなることから篩分は後の最終的な製品としての
回収率が低下する。(Problem ii to be solved by the invention) In this way, the conventional method starts with premixing of raw materials, heat-kneading, cooling and pulverizing the kneaded material, spheroidizing and classifying, mixing with additives, homogenizing, and removing foreign substances. Many steps had to be taken, such as sieving and sieving. As a result, it is inevitable that the equipment becomes larger and more complex, and improvements are desired in terms of both cost and efficiency in terms of equipment and operation. In addition, the equipment becomes larger and
As powders become more complex, the amount of raw material powder that accumulates on the inner walls of crushers, classifiers, fluidized granulators, mixers, etc. and in the piping connecting each process increases, and the degree of foreign matter contamination increases. As a result, the recovery rate of the sieved fraction as a final product decreases.
このような点に鑑み、本抛明は従来のトナー製造方法に
おける設備、運転の両経費の削減と効率化、および製品
回収率の向上を図ることを目的とするものである。In view of these points, the purpose of the present invention is to reduce and improve the efficiency of both equipment and operating costs in conventional toner manufacturing methods, and to improve the product recovery rate.
（課題を解決するだめの手段）
本発明は、予備混合・混練・冷却・粗粉砕工程を経て粒
径３０ミクロン以下になった原料粉体を高速回転する容
器内に投入し、遠心力により容器の内周面に押しつけて
粉体層を形成させ、該粉体層に対してステータによる強
力な圧縮摩擦と、スフレバによる攪拌混合とを付与させ
、当該作用に伴う原料粉体内部の摩擦熱と別途付加した
加熱手段とにより球形化を行わせる粉体処理装置を使用
し、−容器内において微粉砕から造粒成形、整粒、均質
化混合までの一連の処理工程を行わせることにある。(Another Means to Solve the Problem) The present invention involves putting raw material powder whose particle size has become 30 microns or less through premixing, kneading, cooling, and coarse pulverization steps into a container rotating at high speed, and applying centrifugal force to the container. is pressed against the inner circumferential surface of the powder to form a powder layer, and strong compression friction by the stator and stirring and mixing by the souffle bar are applied to the powder layer, thereby reducing the frictional heat inside the raw material powder due to this action. A series of processing steps from pulverization to granulation, sizing, and homogenization mixing are carried out in a container using a powder processing device that performs spheroidization using a separately added heating means.
（作用）
本発明は、第１図に示すように熱可塑性樹脂粉末・カー
ボン・荷電制御剤等のトナー用材料を予備混合・混練・
冷却工程を経た混練物を粗粉砕して粒’ｆ４３０ミクロ
ン以下にし、これを−容器内において微粉砕し、造粒成
形し、混合させて最終的な製品ノトナーにすることがで
きる。つまり、前記工程を具備した物体処理装置内にお
いて、従来方法における粗粉砕処理された原料粉体をさ
らに微粉砕し、球形化と分級選別を行い、必要により添
加剤を加え、均質化のための混合を行い製品として取り
出すまでの一連の工程を担うものである。(Function) As shown in FIG. 1, the present invention is a method of premixing, kneading, and
The kneaded material that has undergone the cooling process is coarsely pulverized to particles of 430 microns or less, which are then finely pulverized in a container, granulated, and mixed to form the final product of toner. In other words, in an object processing device equipped with the above process, the raw material powder that has been coarsely pulverized in the conventional method is further finely pulverized, spheroidized and classified, additives are added as necessary, and It is responsible for a series of processes from mixing to taking out the product.
次に、該粉体処理装置内における作用を第４図により説
明する。容器のケーシング４が矢印方向に高速回転され
ると、遠心力により内部の原料粉体は内周面４ａに押し
付けられ内周面４ａに沿った粉体層Ｆが形成される。こ
の粉体層Ｆに対して円弧状の曲面６ａをもつステータ６
を押し当てることにより、粉体ｆｆ１Ｆがステータ６と
内周面４ａとの狭められた隙間Ｃを通過して厚さＴから
厚さｔにまで圧縮される。この時、原料粉体に強力な圧
縮力と摩擦力とが付加されて粉砕が行われるが、さらに
、図示省略のスフレバのかき取りによる撹拌作用とが加
わり、きわめて均一に効率よく微粉砕させることができ
る。Next, the operation within the powder processing apparatus will be explained with reference to FIG. When the casing 4 of the container is rotated at high speed in the direction of the arrow, the raw material powder inside is pressed against the inner circumferential surface 4a by centrifugal force, forming a powder layer F along the inner circumferential surface 4a. A stator 6 having an arc-shaped curved surface 6a with respect to this powder layer F
By pressing, the powder ff1F passes through the narrowed gap C between the stator 6 and the inner peripheral surface 4a and is compressed from the thickness T to the thickness t. At this time, strong compressive force and frictional force are applied to the raw material powder to perform pulverization, and in addition, a stirring action is added by scraping off a souffle bar (not shown), making it possible to pulverize extremely uniformly and efficiently. Can be done.
球形化については、微粉砕処理に引き続いて行い、圧縮
・摩擦に伴い発生する内部摩擦熱と必要Ｇこより付加さ
れる加熱手段とにより、粒子表面が軟化あるいは溶融化
されるため、圧縮・摩擦に加えて攪拌、混合の作用を付
与させることにより球形化させることができる。すなわ
ち、前述のステータ６と内周面４ａとの隙間Ｃにおいて
、粉体ＮＦに圧縮、摩擦を伴う強力な圧力が加えられ原
料の粒子相互間に押し付けと擦り込みとが行われると、
これに伴う応力を粒子側に生じさせ、粒子の表面層に結
晶構造上の変化を起こして粒子自体の物質としての物理
的あるいは化学的性質に変化が生じる。Spheroidization is performed following the pulverization process, and the internal frictional heat generated due to compression and friction and the heating means added due to the necessary G soften the particle surface or melt it. In addition, it can be made into a spherical shape by applying the action of stirring and mixing. That is, in the gap C between the stator 6 and the inner circumferential surface 4a described above, when a strong pressure accompanied by compression and friction is applied to the powder NF, and the particles of the raw material are pressed and rubbed between each other,
Stress associated with this is generated on the particle side, causing a change in the crystal structure of the surface layer of the particle, resulting in a change in the physical or chemical properties of the particle itself as a substance.
いわゆる、メカノケミカルな反応が起こされ、粒子の表
面が活性化され、と（に樹脂部分が軟化あるいは溶融状
態になる。そして、各粒子は粉体層Ｆ内においては常に
圧力を受けている状態にあるため、粒子が別の粒子に付
着すると同時に埋め込まれるかたちで結合が行われほぼ
均一な゛粒子に整粒される。したがって、過粉砕された
微小粒子についても粒子同士の結合により、あるいは別
のより大きな粒子に結合されるなど整粒化が行われるた
め、微粉や微小な粒子がなく、選別して混練機に戻すな
どの処理手段を講じる必要もない。A so-called mechanochemical reaction occurs, the surface of the particles is activated, and the resin part becomes softened or melted.Then, each particle is constantly under pressure in the powder layer F. Because of this, the particles attach to another particle and are simultaneously embedded in the form of bonding, resulting in almost uniform particles. Therefore, even over-pulverized fine particles may be bonded to each other or separated. Since the particles are sized by being combined into larger particles, there is no fine powder or minute particles, and there is no need to take processing measures such as sorting and returning to the kneader.
なお、前述の理由により分級選別工程は不要となり、ま
た、均質化のための混合についても粉砕から球形化に至
る一連の工程に付随して行われるため必要ないが、最終
的に荷電制御剤等を添加させて被覆量を調整する場合に
限り球形化後も、運転を継続しながら行い、樹脂粒子に
対して均一に分散被覆させることができる。また、該装
置から取り出したトナー粉体は必要に応じて異物除去の
ための篩分けを行い製品とする。For the reasons mentioned above, the classification process is no longer necessary, and the mixing for homogenization is not necessary as it is performed along with the series of processes from pulverization to spheroidization, but in the end the charge control agent, etc. Only when the amount of coating is adjusted by adding , the operation can be continued even after spheroidization, and the resin particles can be uniformly dispersed and coated. Further, the toner powder taken out from the apparatus is sieved to remove foreign matter as necessary to produce a product.
（発明の効果）
本発明は、従来の製造方法に比べはるかに工程面での簡
略化が図れる。つまり、樹脂粉末とカーボン・荷電制御
剤等原料の混合・混練捏化・粗粉砕に続く微粉砕と流動
造粒装置による球形化工程、二段階にわたる分級選別工
程を経て、均質化のための混合工程と異物除去のための
篩分けなど工程の全部またはその一部が大幅に簡略化、
あるいは不要となるため、処理設備と操作面での効率化
が図れる。また、装置自体が小型化することで設備、運
転の両面において経済的に大きな効果がある。(Effects of the Invention) The present invention can significantly simplify the process compared to conventional manufacturing methods. In other words, resin powder, carbon, charge control agent, and other raw materials are mixed, kneaded, kneaded, and coarsely pulverized, followed by fine pulverization and spheroidization using a fluidized granulator, followed by a two-step classification and sorting process, and then mixed for homogenization. All or part of the process, such as sieving to remove foreign substances, has been greatly simplified.
Alternatively, since it is not necessary, it is possible to improve the efficiency of processing equipment and operations. Furthermore, the miniaturization of the device itself has significant economic effects in terms of both equipment and operation.
さらに、処理工程の簡略化に伴い各工程を接続する配管
内および各装置内への原料粉体の付着滞留量が減少し、
かつ、従来方法における微粉砕から篩分けまでの工程を
一つの装置内で行わせるため、異物混入のおそれも大幅
に減少するため、製品の回収率が向上する。しかも、攪
拌混合と圧縮摩擦とに伴う特有の整粒効果によりきわめ
て粒径の揃った均一で球形化された粒子ができ、流動性
にすぐれた良好な製品としてのトナーを得ることができ
る。Furthermore, with the simplification of the processing process, the amount of raw material powder stuck and retained in the piping connecting each process and in each device has been reduced.
In addition, since the steps from pulverization to sieving in the conventional method are performed in one device, the risk of foreign matter contamination is greatly reduced, and the product recovery rate is improved. Moreover, due to the unique particle size regulating effect associated with stirring and mixing and compression friction, uniform and spherical particles with extremely uniform particle sizes can be produced, and a toner product with excellent fluidity can be obtained.
（実施例）
まず、樹脂粉末とカーボンおよび荷電制御剤等の予備混
合、混練、冷却、粗粉砕の各工程を経て約３０ミクロン
以下の粒径になった粉粒体を原料として、粉体処理装置
に投入する。(Example) First, powder processing is performed using a powder material having a particle size of approximately 30 microns or less through the steps of premixing resin powder, carbon, charge control agent, etc., kneading, cooling, and coarse pulverization as a raw material. Insert into the device.
次に、該粉体処理装置について第２図および第３図にお
いて説明する。機台１−に固定された電動モータ２ａ及
び変速機２ｂ等からなる回転駆動装置２に連結した縦向
き回転軸３に円筒状の処理室５を形成するケーシング４
を取り付けている。ケーシング４はその内部の被処理原
料が遠心力により内周面４ａに押付けられるように、し
かも、被処理原料の性状に応じた適切な遠心力が得られ
るように、ケーシング４の回転速度を自由に調整変更で
きるよう構成している。また、ケーシング４の外周に適
当な間隔を保ちケーシング４を包囲するカバー９を設け
、該カバー９の下方および上方には該空気の入口１４と
出口１５を設けて空気の通路１０を形成する。そして、
出口１５を風車２４に接続させるほか、必要により風車
２４の排気を入口１４に戻して循環させるべく接続する
。それぞれの流量調節は、バルブ２８およびバルブ２９
で行う。また、該カバ−９外周にはジャケット１６を設
けて熱媒の貯留源２３に接続させ、バルブ３２、ポンプ
２６を介し供給、循環させる。Next, the powder processing apparatus will be explained with reference to FIGS. 2 and 3. A casing 4 forming a cylindrical processing chamber 5 on a vertical rotating shaft 3 connected to a rotational drive device 2 consisting of an electric motor 2a, a transmission 2b, etc. fixed to a machine base 1-.
is installed. The rotation speed of the casing 4 is freely controlled so that the raw material to be processed inside the casing 4 is pressed against the inner circumferential surface 4a by centrifugal force, and also to obtain an appropriate centrifugal force according to the properties of the raw material to be processed. It is configured so that it can be adjusted and changed. Further, a cover 9 is provided around the outer periphery of the casing 4 to surround the casing 4 while maintaining an appropriate interval, and an inlet 14 and an outlet 15 for the air are provided below and above the cover 9 to form an air passage 10. and,
In addition to connecting the outlet 15 to the windmill 24, the exhaust from the windmill 24 is also connected to be circulated back to the inlet 14 if necessary. Each flow rate adjustment is performed by valve 28 and valve 29.
Do it with Further, a jacket 16 is provided on the outer periphery of the cover 9 and connected to a storage source 23 of the heat medium, which is supplied and circulated via a valve 32 and a pump 26.
他方、ケーシング４内には内周面４ａに対し適当な隙間
を保持させてステータ６とスクレパ７とがケーシング４
の上方中心部を貫通して設けられた支持体８に保持され
ている。このステータ６と７クレパ７とは回転方向に対
してステータ６・スクレパ７の順に互いに適当な間隔を
保って配設されており、ステータ６の先端は円弧状の曲
面をしており、ケーシング４の回転に対してその作用面
６ａがケーシング４の内周面４ａとの隙間を次第に縮小
させるように構成させている。また、ステータ６の７内
部にも熱媒または冷媒の通路１３を設け、前記熱媒の貯
留源２３にバルブ３０を介して接続させる。On the other hand, the stator 6 and the scraper 7 are attached to the casing 4 while maintaining an appropriate gap with respect to the inner circumferential surface 4a.
It is held by a support 8 provided through the upper center of the . The stators 6 and 7 and the scrapers 7 are arranged at an appropriate distance from each other in the order of rotation, and the tip of the stator 6 has an arcuate curved surface. The structure is such that the clearance between the working surface 6a and the inner circumferential surface 4a of the casing 4 gradually decreases with respect to the rotation of the casing 4. Further, a heat medium or coolant passage 13 is provided inside 7 of the stator 6 and connected to the heat medium storage source 23 via a valve 30.
なお、該通路１３には必要に応じて別途冷媒用の貯留源
を接続させることもできる。そして、ステータ６内の流
路には温度検出器１７を取り付け、処理室５内の被処理
原料を常に最適温度範囲に維持させるべく温度制御器１
８に接続させ、検出値！と応じて温度−節を行わせる。Note that a separate storage source for refrigerant may be connected to the passage 13 if necessary. A temperature detector 17 is attached to the flow path in the stator 6, and a temperature controller 1 is installed to maintain the raw material to be processed in the processing chamber 5 within the optimum temperature range.
Connect to 8 and check the detected value! Temperature-section is performed accordingly.
つまり、温度検出器１７からの検出値に応じて、熱媒あ
るいは冷媒の供給量や空気量を加減したり、またはケー
シング４の回転数を温度が上昇してくれば遅くし、温度
が下降してくれば早くするなどして被処理原料内部の摩
擦熱の発生を調節させることによっても温度調節を行わ
せることができる。そして、これら手段の一つあるいは
複数を適時選択することができる。In other words, depending on the detected value from the temperature detector 17, the amount of heat or refrigerant supplied or the amount of air is adjusted, or the rotational speed of the casing 4 is slowed down when the temperature rises, and when the temperature falls. The temperature can also be adjusted by controlling the generation of frictional heat inside the raw material to be processed, such as by increasing the speed of heating. One or more of these means can be selected at any time.
また、支持体８内には前記ステータ６への熱媒または冷
媒の通路１３のほか原料供給管１１と製品排出管１２と
およびが具備されている。原料供給管１１には原料用供
給機２１、添加剤用供給機２２のほか、バルブ３１を具
備した搬送用空気導入管１９を接続させ、製品排出管１
２には捕集器２０と風車２５とバルブ２７を接続させて
いる。Further, the support body 8 is provided with a passage 13 for a heat medium or a refrigerant to the stator 6, as well as a raw material supply pipe 11 and a product discharge pipe 12. In addition to the raw material feeder 21 and the additive feeder 22, a conveying air introduction pipe 19 equipped with a valve 31 is connected to the raw material supply pipe 11, and the product discharge pipe 1
2 is connected to a collector 20, a wind turbine 25, and a valve 27.
なお、ステータ６およびスフレバ７とケーシング４の内
周面４ａとの隙間は、たとえば粉体層１０〜５０ｍ ｍ
に対し、ステータ６側では５〜３０ｍｍ、スフレパフ側
では１〜２ｍｍ程度である。Note that the gap between the stator 6 and the souffle valve 7 and the inner circumferential surface 4a of the casing 4 is, for example, a powder layer of 10 to 50 mm.
On the other hand, it is about 5 to 30 mm on the stator 6 side and about 1 to 2 mm on the soufflé puff side.
以上の構成により、原料供給管１１から投入された被処
理原料は処理室５内でステータ６とスフレバ７とにより
圧縮摩擦と攪拌混合作用を付与され、微粉砕と整粒化、
および内部摩擦熱と加熱手段による造粒整形作用により
球形化される。処理室５内からの取出しは、風車２５を
運転し、バルブ２７とバルブ３１を操作して空気導入管
１９より導入させた空気に乗せて製品排出管１２により
空気輸送させ、捕集器２０で回収して取り出す。With the above configuration, the raw material to be processed inputted from the raw material supply pipe 11 is given compressive friction and stirring mixing action by the stator 6 and the souffle bar 7 in the processing chamber 5, and is pulverized and sized,
Then, it is made into a spherical shape by the internal frictional heat and the granulation shaping action by the heating means. To take out the product from the processing chamber 5, the windmill 25 is operated, the valves 27 and 31 are operated, the air introduced through the air introduction pipe 19 is carried, the product is transported through the product discharge pipe 12, and the product is transported by the collector 20. Collect and take out.
【図面の簡単な説明】
第１図は本発明によるトナー製造の概略を示すフローシ
ート、第２図乃至第４図は本発明を実施するための粉体
処理装置を示し、第２図は装置の要部断面図、第３図は
第２図のＡ−Ａ断面図、第４図はステータの作用を示す
説明図、第５図は従来のトナー製造の概略を示すフロー
シートである。
図において、１・・・・・・機台、２・・・・・・回転
駆動装置、３・・・・・・回転軸、４・・・・・・ケー
シング、４ａ・旧・・内周面、５・・・・・・処理室、
６・・・・・・ステータ、６ａ・・・・・・作用面、７
・・・・・・スフレバ、９・・・・・・カバー、１０・
・・・・・空気通路、１１・・・・・・原料供給管、１
２・・・・・・製品排出管、１６・・・・・・ジャケッ
ト、２５・・・・・・温度検出器、である。
以 上
出願人 ホンカワミクロン株式会社
第１図
均質化混合・添加剤混合
第２図
第３図
第４図
第５図[Brief Description of the Drawings] Fig. 1 is a flow sheet showing an outline of toner production according to the present invention, Figs. 2 to 4 show a powder processing apparatus for carrying out the present invention, and Fig. 2 shows the apparatus 3 is a sectional view taken along the line A-A in FIG. 2, FIG. 4 is an explanatory diagram showing the operation of the stator, and FIG. 5 is a flow sheet showing an outline of conventional toner production. In the figure, 1... Machine base, 2... Rotation drive device, 3... Rotating shaft, 4... Casing, 4a... Old... Inner periphery. Surface, 5...processing room,
6... Stator, 6a... Action surface, 7
・・・・・・Souffle, 9・・・・Cover, 10・
... Air passage, 11 ... Raw material supply pipe, 1
2...product discharge pipe, 16...jacket, 25...temperature detector. Applicant Honkawa Micron Co., Ltd. Figure 1 Homogenization mixing/additive mixing Figure 2 Figure 3 Figure 4 Figure 5
Claims (2)
ナー用材料を予備混合・混練・冷却工程を経た混練物を
粗粉砕し、粒径３０ミクロン以下になったトナー中間品
を原料として、粉砕・造粒成形・混合の一連の工程を一
容器内で行うことを特徴とする乾式静電複写用トナーの
製造方法。(1) Toner materials such as thermoplastic resin powder, carbon, charge control agent, etc. are premixed, kneaded, and cooled, and the mixture is roughly pulverized, and the toner intermediate product with a particle size of 30 microns or less is used as a raw material. A method for producing toner for dry electrostatic copying, characterized in that a series of steps of pulverization, granulation, and mixing are performed in one container.
粉体を遠心力により内周面に押しつけて粉体層に形成さ
せる手段と、該粉体層に圧縮摩擦とかき取りによる攪拌
混合を付与させる手段と、原料粉体を溶融軟化させる加
熱手段とを具備させて構成した粉体処理装置によって、
粉砕、造粒成形、混合等の一連の工程を行わせることを
特徴とする請求項１記載の乾式静電複写用トナーの製造
方法。(2) A means for rotating the container at high speed to press the raw material powder charged into the container against the inner peripheral surface by centrifugal force to form a powder layer, and stirring and mixing the powder layer by compression friction and scraping. By means of a powder processing apparatus configured with a means for imparting powder and a heating means for melting and softening the raw material powder,
2. The method for producing a toner for dry electrostatic copying according to claim 1, wherein a series of steps such as pulverization, granulation molding, and mixing are carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63065442A JPH01237562A (en) | 1988-03-17 | 1988-03-17 | Production of dry process toner for electrostatic copying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63065442A JPH01237562A (en) | 1988-03-17 | 1988-03-17 | Production of dry process toner for electrostatic copying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01237562A true JPH01237562A (en) | 1989-09-22 |
Family
ID=13287254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63065442A Pending JPH01237562A (en) | 1988-03-17 | 1988-03-17 | Production of dry process toner for electrostatic copying |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01237562A (en) |
-
1988
- 1988-03-17 JP JP63065442A patent/JPH01237562A/en active Pending
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