JPH10180132A - Method for crushing substance in molten state - Google Patents
Method for crushing substance in molten stateInfo
- Publication number
- JPH10180132A JPH10180132A JP35686396A JP35686396A JPH10180132A JP H10180132 A JPH10180132 A JP H10180132A JP 35686396 A JP35686396 A JP 35686396A JP 35686396 A JP35686396 A JP 35686396A JP H10180132 A JPH10180132 A JP H10180132A
- Authority
- JP
- Japan
- Prior art keywords
- substance
- crushed
- molten state
- crushing
- crushing method
- 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
- 239000000126 substance Substances 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims description 26
- 239000000463 material Substances 0.000 claims abstract description 22
- 238000003756 stirring Methods 0.000 claims abstract description 12
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 9
- 239000000956 alloy Substances 0.000 claims abstract description 8
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 8
- 238000002844 melting Methods 0.000 claims abstract description 8
- 230000008018 melting Effects 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000025 natural resin Substances 0.000 claims abstract description 7
- 239000012188 paraffin wax Substances 0.000 claims abstract description 7
- 239000011271 tar pitch Substances 0.000 claims abstract description 7
- 239000001993 wax Substances 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims abstract description 6
- 238000009834 vaporization Methods 0.000 claims abstract description 6
- 230000008016 vaporization Effects 0.000 claims abstract description 6
- 239000002131 composite material Substances 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 8
- 239000000654 additive Substances 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 10
- 229920005989 resin Polymers 0.000 abstract description 9
- 239000011347 resin Substances 0.000 abstract description 9
- 239000004793 Polystyrene Substances 0.000 abstract description 6
- 239000011230 binding agent Substances 0.000 abstract description 6
- 229920002223 polystyrene Polymers 0.000 abstract description 6
- 238000010298 pulverizing process Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 description 5
- 238000002309 gasification Methods 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 238000009835 boiling Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Processes Of Treating Macromolecular Substances (AREA)
- Disintegrating Or Milling (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する分野】この発明は、溶融状態にある物
質、例えば溶融状態の熱可塑性樹脂、ワックス、パラフ
ィン、タールピッチ、天然樹脂、低融点合金等を冷却、
固化して破砕する方法に関する。The present invention relates to a method for cooling a substance in a molten state, for example, a thermoplastic resin, wax, paraffin, tar pitch, natural resin, low melting point alloy, etc. in a molten state.
It relates to a method of solidifying and crushing.
【０００２】[0002]
【従来の技術】従来、複写機、ファクシミリ、コンピュ
ータ端末機等の電子写真プロセスにおいて使用される乾
式トナー（現像剤）は、バインダ樹脂である熱可塑性樹
脂に着色剤、添加剤等を混合し、混合された組成物を加
熱し溶融処理した後、冷却、固化し機械的粉砕手段で微
粉砕している。この種の処理工程は、予備混合、溶融し
た組成物の混合、冷却、粗砕、微粉砕の複数の工程から
成り、各工程には夫々の処理に対応した専用装置が用い
られている。又、個々の専用装置間は、製品の搬送手段
で連結され、装置の作動状況を監視しつつ連動して制御
されている。2. Description of the Related Art Conventionally, a dry toner (developer) used in an electrophotographic process of a copying machine, a facsimile, a computer terminal, or the like is obtained by mixing a coloring agent, an additive, and the like with a thermoplastic resin as a binder resin. The mixed composition is heated and melted, then cooled, solidified and pulverized by a mechanical pulverizing means. This type of processing step includes a plurality of steps of pre-mixing, mixing of a molten composition, cooling, crushing, and pulverizing, and each step uses a dedicated device corresponding to each processing. Further, the individual dedicated devices are connected by means for transferring products, and are controlled in conjunction with each other while monitoring the operation status of the devices.
【０００３】予備混合工程は、バインダ樹脂、染顔料、
荷電制御剤などをドライブレンドし、均一にするために
ものでフォルバーグ、Ｖブレンダ等の各種ミキサーが用
いられる。混練り工程では、加熱ローダ、ニーダ、エク
ストルーダ等を使用して、バインダ樹脂を溶融又は軟化
状態で剪断応力を加えつつ染顔料を樹脂中に均一に分散
させる工程であり、コピーの画像濃度、現像剤の耐久
性、トナーのクリーニング性などに影響を及ぼす。冷却
工程は、混練り行程を終えた溶融樹脂を、水を通した冷
却ロールでシート状に成形し、冷却ベルト上で常温まで
冷却する。冷却された組成物は、先ず粗砕工程でハンマ
ミルやカッタミルで粒径１〜３mm程度に破砕され、更に
ジュットミルにより５〜２５μｍの粒径に微粉砕され
る。[0003] The pre-mixing step includes a binder resin, a dye and a pigment,
Various mixers such as Folberg and V blender are used for dry blending and uniformity of a charge control agent and the like. In the kneading step, a heating loader, a kneader, an extruder or the like is used to uniformly disperse the dye and pigment in the binder resin while applying a shearing stress in a molten or softened state. It affects the durability of the agent, the cleaning property of the toner, and the like. In the cooling step, the molten resin having undergone the kneading process is formed into a sheet by a cooling roll through which water is passed, and cooled to room temperature on a cooling belt. The cooled composition is first crushed to a particle size of about 1 to 3 mm by a hammer mill or a cutter mill in a coarse crushing step, and further finely crushed to a particle size of 5 to 25 μm by a jut mill.
【０００４】従来の粗砕工程や微粉砕工程では、大量の
エネルギーを消費し、かつ効率が著しく低いという問題
点を有している。特に、前記トナーの組成物であるバイ
ンダ樹脂は、８０〜１００℃で軟化する特徴を有してお
り、粗砕や微粉砕工程において、熱エネルギーを与えら
れて軟化するため、破砕や粉砕が困難であった。更に樹
脂の結合力が強固であるほど、破砕・粉砕し難く軟化し
易いという問題がある。[0004] The conventional crushing step and fine crushing step have problems that a large amount of energy is consumed and the efficiency is extremely low. In particular, the binder resin, which is a composition of the toner, has a feature of softening at 80 to 100 ° C., and is softened by applying heat energy in a crushing or pulverizing step, so that crushing or crushing is difficult. Met. Furthermore, there is a problem that the stronger the bonding strength of the resin, the more difficult it is to crush and pulverize and to soften the resin.
【０００５】[0005]
【発明が解決しようとする課題】この発明は、破砕のた
めのエネルギー消費を抑制して効率よく破砕を行いうる
と共に、被破砕物質をポーラスな状態にして破砕をより
容易、且良好に行い得るようにせんとするものである。According to the present invention, crushing can be carried out efficiently by suppressing energy consumption for crushing, and crushing can be carried out more easily and better by making the material to be crushed porous. It is something to be done.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するため
にこの発明が採った手段は、溶融状態にある被破砕物質
に、減圧、撹拌下でガス化する物質を加えて分散させ、
ガス化する物質の気化熱により被破砕物質を冷却、固化
する共に、破砕するようにしたことを特徴とする。Means taken by the present invention for solving the above-mentioned problems is to disperse a substance to be crushed in a molten state by adding a substance to be gasified under reduced pressure and stirring,
The material to be crushed is cooled and solidified by the heat of vaporization of the material to be gasified, and crushed.
【０００７】又、溶融状態にある物質が、熱可塑性樹
脂、ワックス、パラフィン、タールピッチ、天然樹脂及
び低融点合金であることを特徴とする。[0007] The material in a molten state is a thermoplastic resin, wax, paraffin, tar pitch, natural resin and low melting point alloy.
【０００８】更に、溶融状態にある被破砕物質が、熱可
塑性樹脂、ワックス、パラフィン、タールピッチ、天然
樹脂及び低融点合金から選択された物質の複合物である
ことを特徴とする。Further, the material to be crushed in a molten state is a composite of a material selected from a thermoplastic resin, wax, paraffin, tar pitch, a natural resin and a low melting point alloy.
【０００９】更に、溶融状態にある被破砕物質に、液体
添加物、熱可塑性を有しない粉粒体、繊維状物質が混合
されていることを特徴とする。Further, the present invention is characterized in that a liquid additive, a non-thermoplastic powder or granule, or a fibrous substance is mixed with a substance to be crushed in a molten state.
【００１０】更に、ガス化する物質が、水若しくは、有
機溶剤或はこれらの混合物であることを特徴とする。Further, the gasification substance is water, an organic solvent, or a mixture thereof.
【００１１】[0011]
【発明の実施の形態】この発明の好ましい実施の形態
を、以下に詳細に説明する。この発明の破砕方法は、溶
融状態にある被破砕物質にガス化する物質を加えて被破
砕物質中に分散させ、ガス化する物質のガス化による気
化熱で、被破砕物質を冷却、固化しつつ被破砕物質を破
砕することを特徴とする。ガス化する物質のガス化によ
り、被破砕物質中には多くの気泡が生成されるため、冷
却、固化した物質はポーラスな状態となり、比較的少な
いエネルギーで良好に破砕を促進することが可能とな
る。ガス化する物質の被破砕物質への分散は、減圧下及
び撹拌下で行う。ガス化する物質は、減圧下では沸点が
下がるため、被破砕物質の持つ熱で沸点に達し蒸発ガス
化する。更に、ガス化する物質の被破砕物質への分散
を、撹拌下で行うことによりガス化を促進し、気化熱に
よる冷却、固化がスムースに進行すると共に、撹拌力で
冷却固化した被破砕物質の破砕が達成され、冷却、固化
と破砕とを同時に行うことが出来る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described in detail below. According to the crushing method of the present invention, a substance to be gasified is added to a substance to be crushed in a molten state and dispersed in the substance to be crushed, and the substance to be crushed is cooled and solidified by heat of vaporization caused by gasification of the substance to be gasified. It is characterized in that the material to be crushed is crushed while being crushed. Since many gas bubbles are generated in the material to be crushed due to the gasification of the material to be gasified, the cooled and solidified material is in a porous state, and crushing can be favorably promoted with relatively little energy. Become. Dispersion of the substance to be gasified into the substance to be crushed is performed under reduced pressure and under stirring. The substance to be gasified has a lower boiling point under reduced pressure, and thus reaches the boiling point by the heat of the substance to be crushed and is vaporized. Furthermore, by dispersing the material to be crushed into the material to be crushed under stirring, the gasification is promoted, and the cooling and solidification by the heat of vaporization progress smoothly, and the crushed material cooled and solidified by the stirring force is removed. Crushing is achieved and cooling, solidification and crushing can be performed simultaneously.
【００１２】この発明の破砕方法により破砕するに適し
た溶融状態にある被破砕物質は、前記電子写真プロセス
において使用される乾式トナー（現像剤）のバインダー
樹脂である熱可塑性樹脂に限られるものではなく、その
他の熱可塑性樹脂、ワックス、パラフィン、タールピッ
チ、天然樹脂、低融点合金、或はこれらの複合体等を破
砕するのに好適である。又、ガス化する物質としては、
水若しくは有機溶剤或はこれらの混合物が含まれる。ガ
ス化する物質の添加量は、特に限定されないが、少なく
とも溶融状態にある物質と撹拌系内を気化熱で当該被破
砕物質の固化温度まで冷却するのに要する量を添加する
のが好ましい。溶融状態にある被破砕物質には、必要に
応じて液体添加物、熱可塑性を有しない粉粒体、或は繊
維状物質を混合してもよい。The substance to be crushed in a molten state suitable for crushing by the crushing method of the present invention is not limited to a thermoplastic resin which is a binder resin of a dry toner (developer) used in the electrophotographic process. It is suitable for crushing other thermoplastic resins, waxes, paraffin, tar pitch, natural resins, low melting point alloys, or composites thereof. In addition, as a substance to be gasified,
Water or organic solvents or mixtures thereof are included. The amount of the substance to be gasified is not particularly limited, but it is preferable to add at least an amount required to cool the substance in a molten state and the stirring system to the solidification temperature of the substance to be crushed by heat of vaporization. The crushed substance in the molten state may be mixed with a liquid additive, a non-thermoplastic powder or a fibrous substance, if necessary.
【００１３】[0013]
【実施例】下記条件下で、この発明の方法に従って被破
砕物質を破砕した。すなわち、容量３〜５リットルの混
合機にポリスチレン１．５Ｋｇを投入し、撹拌しながら
溶融状態にし、約２００hPa絶対圧の減圧下にて、撹拌
下で且溶融状態にあるポリスチレンに６００ｇの水を投
入した。溶融状態にあるポリスチレンは冷却され、ポー
ラスな状態で固化し、同時に撹拌力で平均粒度１０mm程
度の破砕された。EXAMPLES The material to be crushed was crushed according to the method of the present invention under the following conditions. That is, 1.5 kg of polystyrene is charged into a mixer having a capacity of 3 to 5 liters, and the mixture is melted with stirring, and 600 g of water is mixed with polystyrene in a molten state under stirring at a reduced pressure of about 200 hPa absolute pressure. I put it in. The polystyrene in the molten state was cooled and solidified in a porous state, and at the same time, crushed with an agitation force to an average particle size of about 10 mm.
【００１４】[0014]
【表１】 [Table 1]
【００１５】[0015]
【発明の効果】この発明によれば、被破砕物質内に気泡
室を生成しポーラスな状態に出来るため、被破砕物質の
破砕のためのエネルギーが少なくなると共に、冷却工程
と破砕工程が同時に進行するため熱軟化物質でも効率よ
く破砕することが可能となる。破砕された被破砕物質は
ポーラスな状態若しくは結合状態を弱められた状態とな
っているため、次工程の微粉砕を効率よく行うことが可
能となる。又、従来別工程で行われていた冷却、固化と
破砕と一系内で行うため、製品の切り替えの際の清掃や
段取りが簡単になると共に、設備の保守・管理も容易と
なる。更に、複数の工程毎の複数の装置が必要でなくな
るため、設備のイニシャルコストを低減でき、又各工程
間の搬送器具を省略できるので、コンタミを少なくでき
る。According to the present invention, since a bubble chamber can be generated in the material to be crushed to be in a porous state, energy for crushing the material to be crushed is reduced, and the cooling step and the crushing step proceed simultaneously. Therefore, even heat-softening substances can be efficiently crushed. Since the crushed substance to be crushed is in a porous state or a state in which the bonded state is weakened, it is possible to efficiently perform the fine grinding in the next step. In addition, since cooling, solidification, and crushing, which are conventionally performed in separate processes, are performed in one system, cleaning and setup at the time of product switching are simplified, and facility maintenance and management are also facilitated. Further, since a plurality of devices for each of a plurality of processes are not required, the initial cost of the equipment can be reduced, and the transfer equipment between each process can be omitted, so that contamination can be reduced.
Claims (11)
下でガス化する物質を加えて分散させ、ガス化する物質
の気化熱により被破砕物質を冷却、固化すると共に、破
砕することを特徴とする溶融状態にある物質の破砕方
法。1. A method in which a substance to be gasified under reduced pressure and stirring is added to a substance to be crushed in a molten state and dispersed, and the substance to be crushed is cooled, solidified and crushed by heat of vaporization of the substance to be gasified. A method for crushing a substance in a molten state, characterized in that:
脂であることを特徴とする請求項１記載の破砕方法。2. The crushing method according to claim 1, wherein the material to be crushed in a molten state is a thermoplastic resin.
パラフィン、タールピッチ、天然樹脂であることを特徴
とする請求項１記載の破砕方法。3. The crushed substance in a molten state is a wax,
The crushing method according to claim 1, wherein the crushing method is paraffin, tar pitch, or natural resin.
であることを特徴とする請求項１記載の破砕方法。4. The crushing method according to claim 1, wherein the substance to be crushed in a molten state is a low melting point alloy.
脂、ワックス、パラフィン、タールピッチ、天然樹脂、
及び低融点合金から選択された物質の複合物であること
を特徴とする請求項１記載の破砕方法。5. The material to be crushed in a molten state is a thermoplastic resin, wax, paraffin, tar pitch, natural resin,
The crushing method according to claim 1, wherein the crushing method is a composite of a material selected from the group consisting of a low melting point alloy and a low melting point alloy.
が添加されていることを特徴とする請求項２乃至５のい
ずれかに記載の破砕方法。6. The crushing method according to claim 2, wherein a liquid additive is added to the crushed substance in a molten state.
有しない粉粒体が混合されていることを特徴とする請求
項２乃至６のいずれかに記載の破砕方法。7. The crushing method according to claim 2, wherein the material to be crushed in a molten state is mixed with non-thermoplastic particles.
が混合されていることを特徴とする請求項２乃至７のい
ずれかに記載の破砕方法。8. The crushing method according to claim 2, wherein a fibrous substance is mixed with the crushed substance in a molten state.
する請求項１乃至８のいずれかに記載の破砕方法。9. The crushing method according to claim 1, wherein the substance to be gasified is water.
を特徴とする請求項１乃至８のいずれかに記載の破砕方
法。10. The crushing method according to claim 1, wherein the substance to be gasified is an organic solvent.
選択された物質の混合物であることを特徴とする請求項
１乃至８のいずれかに記載の破砕方法。11. The crushing method according to claim 1, wherein the substance to be gasified is a mixture of a substance selected from water and an organic solvent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35686396A JPH10180132A (en) | 1996-12-26 | 1996-12-26 | Method for crushing substance in molten state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35686396A JPH10180132A (en) | 1996-12-26 | 1996-12-26 | Method for crushing substance in molten state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10180132A true JPH10180132A (en) | 1998-07-07 |
Family
ID=18451146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35686396A Pending JPH10180132A (en) | 1996-12-26 | 1996-12-26 | Method for crushing substance in molten state |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10180132A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012516770A (en) * | 2009-02-05 | 2012-07-26 | リスト ホールディング アーゲー | Method and apparatus for continuous processing of mixture |
-
1996
- 1996-12-26 JP JP35686396A patent/JPH10180132A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012516770A (en) * | 2009-02-05 | 2012-07-26 | リスト ホールディング アーゲー | Method and apparatus for continuous processing of mixture |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE60016228D1 (en) | COMPOSITIONS FROM PULVERIZED FILLERS AND A POLYMER MATRIX AND METHOD FOR THE PRODUCTION THEREOF | |
| TW201143881A (en) | Agitating and mixing apparatus and method for manufacturing resin composition for sealing semiconductor | |
| EP1223187B1 (en) | Production process of colored fine particulate resins, colored fine particulate resins, and coloring process of articles | |
| KR101336480B1 (en) | Process for production of pigment/resin composition, coloring agent and coloring method | |
| JPS6230259A (en) | Manufacture of toner | |
| JP3996388B2 (en) | Method for producing particulate colored resin, particulate colored resin and method for coloring article | |
| JP5090826B2 (en) | Granulation method of polyoxyethylene ether of bisphenol A | |
| JP4047253B2 (en) | Toner production method | |
| JPS59104402A (en) | Manufacture of salt-coated magnesium particle | |
| JP2005349305A (en) | Method of manufacturing mixed powder | |
| JP2993624B2 (en) | Method for manufacturing color toner | |
| JPH04503471A (en) | Method for producing uniform finely separated particle mixture | |
| KR890002505B1 (en) | Manufacturing Method of Toner for Electrostatic Image Development | |
| JPH02271364A (en) | Pulverizing device | |
| JPH01236284A (en) | Manufacture of electrostatic powder coating material | |
| JPS61271330A (en) | Production of microsphere of thermoplastic resin composition | |
| JP2004091767A (en) | Method for producing particulate photocurable resin, particulate photocurable resin, and surface treatment method for article | |
| TWI224606B (en) | Method for manufacturing nano-particles without re-aggregation and dispersion substance therefrom | |
| JPH0774099B2 (en) | Manufacturing method of high sphericity and high density zirconia fine particles | |
| CN119899638A (en) | A preparation method and equipment for energy storage temperature regulating phase change material processing | |
| CN105711000A (en) | Recovery, compounding and regeneration method for waste plastics | |
| JPS63194905A (en) | Method of disposal for waste tape or sheet | |
| JPH07104508A (en) | Method for producing electrophotographic developer | |
| JPS62222808A (en) | Granulation of resin | |
| JPH04328132A (en) | Colorant for thermoplastic resin and production thereof |