JPH0157912B2 - - Google Patents
Info
- Publication number
- JPH0157912B2 JPH0157912B2 JP17179082A JP17179082A JPH0157912B2 JP H0157912 B2 JPH0157912 B2 JP H0157912B2 JP 17179082 A JP17179082 A JP 17179082A JP 17179082 A JP17179082 A JP 17179082A JP H0157912 B2 JPH0157912 B2 JP H0157912B2
- Authority
- JP
- Japan
- Prior art keywords
- toner
- developer
- cleaning
- electrophotographic
- present
- 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
Links
- 238000004140 cleaning Methods 0.000 claims description 25
- 239000007788 liquid Substances 0.000 claims description 17
- 239000003495 polar organic solvent Substances 0.000 claims description 6
- 239000003960 organic solvent Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 description 10
- 229930195733 hydrocarbon Natural products 0.000 description 8
- 150000002430 hydrocarbons Chemical class 0.000 description 8
- 239000004215 Carbon black (E152) Substances 0.000 description 7
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 239000000428 dust Substances 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000002411 adverse Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000002798 polar solvent Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- MLFHJEHSLIIPHL-UHFFFAOYSA-N isoamyl acetate Chemical compound CC(C)CCOC(C)=O MLFHJEHSLIIPHL-UHFFFAOYSA-N 0.000 description 2
- 239000012454 non-polar solvent Substances 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 230000005660 hydrophilic surface Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229940117955 isoamyl acetate Drugs 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Detergent Compositions (AREA)
Description
【発明の詳細な説明】
本発明は電子写真現像機用洗浄液に関し、特に
湿式電子写真印刷版の製版に用いられる現像機の
洗浄に適した洗浄液に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cleaning liquid for an electrophotographic developing machine, and more particularly to a cleaning liquid suitable for cleaning a developing machine used in plate making of wet electrophotographic printing plates.
電子写真法を応用して得られる平版印刷版は、
通常、導電性を有する支持体上に酸化亜沿の如き
光導電性粉体を絶縁性樹脂結合剤に分散してなる
感光層を設けた平版印刷版材料を、帯電、露光、
トナー現像及び定着のプロセスにより、感光層上
にインキ受容性のトナー画像を形成することによ
つて得られる。又別の方法として、親水化処理さ
れた表面を有するアルミニウム板の如き導電性支
持体上に有機光導電性化合物を含有する絶縁性感
光層を設けた平版印刷版材料を帯電、露光、トナ
ー現像及び定着した後、エツチング処理によつて
トナー画像部以外の非画像部をエツチング除去
し、支持体の親水性表面を露出させることによつ
て平版印刷版が得られる。 Lithographic printing plates obtained by applying electrophotography are
Usually, a lithographic printing plate material is prepared, which has a photosensitive layer formed by dispersing a photoconductive powder such as oxide in an insulating resin binder on a conductive support.
It is obtained by forming an ink-receptive toner image on the photosensitive layer by a toner development and fixing process. As another method, a lithographic printing plate material comprising an insulating photosensitive layer containing an organic photoconductive compound on a conductive support such as an aluminum plate having a surface treated to make it hydrophilic is charged, exposed to light, and developed with toner. After fixing, the non-image area other than the toner image area is removed by etching treatment to expose the hydrophilic surface of the support, thereby obtaining a lithographic printing plate.
これら電子写真法を用いて得られる平版印刷版
のトナー現像には、荷電トナー粒子を散布する乾
式現像法と荷電トナー粒子を絶縁性液体中に分散
した現像液を用いる湿式現像法があるが、トナー
画像の解像力、画線の再現性等が優れていること
から湿式現像法が用いられていることが多い。 Toner development for lithographic printing plates obtained using these electrophotographic methods includes a dry development method in which charged toner particles are scattered, and a wet development method in which a developer in which charged toner particles are dispersed in an insulating liquid is used. A wet developing method is often used because it has excellent toner image resolution, image reproducibility, and the like.
製版処理としてのトナー現像を長時間繰返し行
うと現像装置にゴミや埃等の汚れがたまつたり、
トナー粒子が付着したりするため製版性能が低下
するが、これらの汚れを取り除くために、洗浄液
で洗浄される。洗浄液としては通常、現像液の分
散媒である絶縁性液体、例えばイソパラフイン系
炭化水素が使用されている。 If toner development as part of the plate-making process is repeated for a long time, dirt, dust, etc. may accumulate in the developing device.
Plate-making performance deteriorates due to the adhesion of toner particles, but in order to remove these stains, the plate is cleaned with a cleaning liquid. As the cleaning liquid, an insulating liquid, such as an isoparaffinic hydrocarbon, which is a dispersion medium for a developer is usually used.
これら現像液の分散溶媒は洗浄後現像液に混つ
ても現像液特性に悪影響を与えないことから使用
されており、通常の汚れに対しては洗浄効果はあ
るが、現像液の絞りローラー等の汚れの著しい部
分及び一旦乾燥してしまつた汚れは非常に取れに
くいという欠点がある。 These developer dispersion solvents are used because they do not adversely affect the developer properties even if they are mixed with the developer after washing, and although they have a cleaning effect on normal dirt, they are The drawback is that heavily soiled areas and once dried are very difficult to remove.
本発明の目的は、上記のような非常に取れにく
いトナー現像液による汚れを取ることのできる洗
浄力に優れた電子写真用洗浄液を提供するにあ
る。 An object of the present invention is to provide an electrophotographic cleaning liquid that has excellent cleaning power and can remove the stains caused by toner developer which are extremely difficult to remove.
本発明の目的は無極性有機溶媒と極性有機溶媒
とを含有する電子写真用洗浄液とすることによつ
て達成できることが見出された。 It has been found that the object of the present invention can be achieved by providing an electrophotographic cleaning liquid containing a nonpolar organic solvent and a polar organic solvent.
本発明に用いられる無極性有機溶媒の代表的な
ものは、湿式現像液の絶縁性溶媒であるパラフイ
ン系炭化水素、特にイソパラフイン系炭化水素で
ある。 A typical nonpolar organic solvent used in the present invention is a paraffinic hydrocarbon, particularly an isoparaffinic hydrocarbon, which is an insulating solvent for a wet developer.
本発明に用いられる極性有機溶媒としては、メ
チルアルコール、エチルアルコール、プロピルア
ルコール、等のアルコール類、酢酸エチル、酢酸
ブチル、酢酸イソアミル等のエステル類、アセト
ン、メチルエチルケトン等のケトン類がその代表
的なものである。 Typical polar organic solvents used in the present invention include alcohols such as methyl alcohol, ethyl alcohol, and propyl alcohol, esters such as ethyl acetate, butyl acetate, and isoamyl acetate, and ketones such as acetone and methyl ethyl ketone. It is something.
無極性有機溶媒と極性有機溶媒との混合割合は
洗浄液としての洗浄効果、両溶媒の相溶性、現像
液に混入したときの電子写真特性への悪影響の有
無等を考慮し適宜決定されるが、通常極性溶媒は
無極性溶媒と極性溶媒の和の10〜80重量％の範
囲、好ましくは20〜60重量％の範囲で用いられ
る。 The mixing ratio of the nonpolar organic solvent and the polar organic solvent is determined as appropriate, taking into consideration the cleaning effect as a cleaning liquid, the compatibility of both solvents, and whether there is any adverse effect on the electrophotographic properties when mixed in the developer. Usually, the polar solvent is used in an amount of 10 to 80% by weight, preferably 20 to 60% by weight of the sum of the nonpolar solvent and the polar solvent.
本発明の洗浄液は電子写真現像装置の洗浄液と
して有効であるが、現像装置に限らず、トナー現
像液に起因する種々の部分の汚れの洗浄に用いる
ことができる。 Although the cleaning liquid of the present invention is effective as a cleaning liquid for electrophotographic developing devices, it can be used not only for cleaning the developing device but also for cleaning stains in various parts caused by toner developer.
本発明に係る極性有機溶媒は誘電率（約４以
上）が高いため、トナー現像液に混入すると現像
液の絶縁性を損うので、電子写真特性に悪影響を
与える。従つて、現像装置を洗浄したあと、現像
機中には極力残留しないようにする必要がある
が、多少の混入は避けられない。上記極性有機溶
媒中エステル類はトナー現像液に混入しても、他
の溶剤に比べ電子写真特性に対し悪影響が少ない
点で好ましい。 Since the polar organic solvent according to the present invention has a high dielectric constant (approximately 4 or more), when mixed into a toner developer, it impairs the insulation properties of the developer, thereby adversely affecting electrophotographic properties. Therefore, after cleaning the developing device, it is necessary to prevent it from remaining in the developing device as much as possible, but some amount of contamination is unavoidable. The above-mentioned esters in polar organic solvents are preferable because even if they are mixed into the toner developer, they have less adverse effect on electrophotographic properties than other solvents.
本発明の洗浄液は電子写真用として種々の電子
写真法に使用できるが、トナー現像液の汚れが取
れにくい湿式現像法による平版印刷版用の現像装
置の洗浄に特に有用である。 Although the cleaning liquid of the present invention can be used in various electrophotographic methods, it is particularly useful for cleaning a developing device for a lithographic printing plate using a wet development method in which stains from toner developer are difficult to remove.
本発明の作用効果は、主に現像装置等に固着し
た現像液組成として含まれる接着性物質（例えば
有機高分子化合物）が極性溶媒により溶解され、
無極性溶媒の洗浄作用と相埃つて、他のゴミや埃
とともに除去されることによるものと思われる。 The effects of the present invention are mainly such that adhesive substances (e.g., organic polymer compounds) contained in the developer composition fixed in the developing device etc. are dissolved by the polar solvent.
This is thought to be due to the cleaning action of the nonpolar solvent and the accompanying dust being removed together with other dirt and dust.
次に本発明の実施例を挙げるが、これに限定さ
れない。 Next, examples of the present invention will be described, but the present invention is not limited thereto.
実施例 １
導電性処理を施こした耐水性紙上に酸化亜沿−
樹脂系の電子写真感光層を有する平版印刷版材料
を、コロナ帯電、像露光、湿式現像によるトナー
現像を繰返して平版印刷版を数版製版した。製版
処理後、現像装置を洗浄せずに放置して乾燥させ
たところ、現像装置のトナー現像液接触個所の各
所にトナー及びゴミ等が付着した。Example 1 Oxidized aluminum was applied to water-resistant paper that had been subjected to conductive treatment.
A lithographic printing plate material having a resin-based electrophotographic photosensitive layer was subjected to repeated corona charging, image exposure, and toner development by wet development to prepare several lithographic printing plates. After the plate-making process, when the developing device was left to dry without being cleaned, toner, dust, etc. adhered to various parts of the developing device that came into contact with the toner developer.
この現像装置のトナー及びゴミ等が付着した個
所を、従来の洗浄液であるイソパラフイン系炭化
水素のみを侵漬させた布で何回もこすつたが全く
取れなかつた。これに対しイソパラフイン系炭化
水素と酢酸エチルとを１：１の割合で混合した本
発明の洗浄液を浸漬させた布でこすつたところ、
固着したトナー及びゴミ等は簡単に取り除くこと
ができ、洗浄後再び現像装置にトナー現像液を入
れ、製版処理を行つたが、電子写真特性に全く悪
影響はなかつた。 The parts of this developing device to which toner and dust had adhered were rubbed many times with a cloth soaked only in isoparaffinic hydrocarbon, which is a conventional cleaning solution, and no dirt could be removed. On the other hand, when I rubbed it with a cloth soaked in the cleaning solution of the present invention, which is a mixture of isoparaffinic hydrocarbon and ethyl acetate in a ratio of 1:1,
The fixed toner and dust could be easily removed, and after cleaning, a toner developer was put into the developing device again and plate making was performed, but there was no adverse effect on the electrophotographic properties.
実施例 ２
実施例１において、本発明の洗浄液としてイソ
パラフイン系炭化水素、メタノール、ブタノール
を２：２：１の割合で混合した組成液を用いたと
ころ、同様の結果を得た。Example 2 In Example 1, when a composition liquid in which isoparaffinic hydrocarbon, methanol, and butanol were mixed in a ratio of 2:2:1 was used as the cleaning liquid of the present invention, similar results were obtained.
実施例 ３
実施例１において、本発明の洗浄液としてイソ
パラフイン系炭化水素とメチルエチルケトンを
１：１の割合で混合した組成液を用いたところ、
同様の結果を得た。Example 3 In Example 1, when a composition liquid in which isoparaffinic hydrocarbon and methyl ethyl ketone were mixed at a ratio of 1:1 was used as the cleaning liquid of the present invention,
Obtained similar results.
上記実施例において、イソパラフイン系炭化水
素として、シエル石油社製のシエルソル71、出光
石油化学社製のIPソルベント1620、IPソルベン
ト2028、エツソ石油社製のアイソパ−Ｇ、アイソ
パ−Ｈ等種々のものを使用することができる。 In the above examples, various isoparaffinic hydrocarbons include Ciel Sol 71 manufactured by Ciel Sekiyu Co., Ltd., IP Solvent 1620 and IP Solvent 2028 manufactured by Idemitsu Petrochemical Co., Ltd., and Isopa-G and Isopa-H manufactured by Etsu Oil Co., Ltd. can be used.
Claims (1)
ことを特徴とする電子写真用洗浄液。1. An electrophotographic cleaning liquid characterized by containing a nonpolar organic solvent and a polar organic solvent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17179082A JPS5960460A (en) | 1982-09-29 | 1982-09-29 | Electrophotographic clearing liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17179082A JPS5960460A (en) | 1982-09-29 | 1982-09-29 | Electrophotographic clearing liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5960460A JPS5960460A (en) | 1984-04-06 |
| JPH0157912B2 true JPH0157912B2 (en) | 1989-12-07 |
Family
ID=15929737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17179082A Granted JPS5960460A (en) | 1982-09-29 | 1982-09-29 | Electrophotographic clearing liquid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5960460A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0711409U (en) * | 1993-07-28 | 1995-02-21 | 辰雄 春木場 | Car window blower |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2700922B2 (en) * | 1989-07-05 | 1998-01-21 | 株式会社スリーボンド | Cleaning agent for brake equipment |
| WO2004092320A1 (en) * | 2003-04-11 | 2004-10-28 | Asahi Denka Co., Ltd. | Detergent composition for alkali development apparatus |
-
1982
- 1982-09-29 JP JP17179082A patent/JPS5960460A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0711409U (en) * | 1993-07-28 | 1995-02-21 | 辰雄 春木場 | Car window blower |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5960460A (en) | 1984-04-06 |
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