JPH01139297A - Ink stain prevention on roller surface of printing machine - Google Patents

Ink stain prevention on roller surface of printing machine

Info

Publication number
JPH01139297A
JPH01139297A JP29608487A JP29608487A JPH01139297A JP H01139297 A JPH01139297 A JP H01139297A JP 29608487 A JP29608487 A JP 29608487A JP 29608487 A JP29608487 A JP 29608487A JP H01139297 A JPH01139297 A JP H01139297A
Authority
JP
Japan
Prior art keywords
ink
cylinder
plate
printing machine
impression cylinder
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
Application number
JP29608487A
Other languages
Japanese (ja)
Inventor
Kan Iwaki
貫 岩木
Seishiro Hamada
濱田 征志朗
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP29608487A priority Critical patent/JPH01139297A/en
Publication of JPH01139297A publication Critical patent/JPH01139297A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To prevent ink stain by applying an ink repulsive layer of a dispersion plating with fluorine or silicone resin, fluorinated graphite, etc., on the roller surface of a printing machine. CONSTITUTION:In a sheet printing machine, for instance, ink is transferred sequentially from an inking device 1 to a plate 2 on a plate cylinder 3, from the plate 2 to the surface of a blanket cylinder 4 and then to the surface of paper 7 for printing. However, ink is transferred to the end 3' of the surface of the plate cylinder 3, then to the end 4' of the surface of the blanket cylinder 4 from the end of the surface of the plate cylinder 3, and finally to the end of the surface of an impression cylinder 5, depending on the size of the plate. Therefore, ink repulsive layers 5', 5'' consisting of fluorine resin or silicone resin film or a dispersion plated layer of fluorinated graphite are formed on the surface and end of the surface of the impression cylinder. In this way, ink does not move from the surface end 4'' of the blanket cylinder to the surface end 5'' of the impression cylinder. Furthermore, ink sticking to part of the surface end 5'' of the impression cylinder can easily be removed by wiping it off with cloth.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は印刷機のローラーに適用されるインキ付着防止
法に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for preventing ink adhesion applied to rollers of printing presses.

〔従来の技術〕[Conventional technology]

従来、印刷機のローラー表面に付着したインキは印刷作
業前後において溶剤等を用いて布等でふきとることによ
り除去されている。
Conventionally, ink adhering to the roller surface of a printing press is removed by wiping it with a cloth or the like using a solvent or the like before or after printing.

また、ローラー表面におけるインキ付着を防止するため
、フッソ樹脂のコートされたガイrローラーが印刷機に
使用されている。
Furthermore, in order to prevent ink from adhering to the roller surface, a roller coated with fluorocarbon resin is used in printing machines.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

従来から用いられているクロム等でメッキ処理されたロ
ーラー表面に固着しているインキの付着力は、クロムメ
ッキ表面の表面エネルギーが大きいため(γ:>200
dys/llり  大きな値を示し、インキの除去に際
しては、溶剤等により溶解・軟化させて除去する必要が
ある。このため溶剤の使用および布等による拭き取りに
時間と手間を要し繁雑である。
The adhesion of ink that adheres to the conventionally used roller surface plated with chromium etc. is due to the large surface energy of the chrome plated surface (γ: > 200
dys/ll shows a large value, and when removing ink, it is necessary to dissolve and soften it with a solvent or the like. Therefore, the use of a solvent and wiping with a cloth or the like is time-consuming and complicated.

〔問題点を解決するための手段〕[Means for solving problems]

ローラー表面におけるインキの付着力を弱め、かつイン
キ除去を容易にするためには、インキのもつ表面エネル
ギーよりも小さい表面エネルギーを有し、更にその表面
が平坦かつ均一な塗膜を形成する物質をローラー表面上
に被覆することが必要である。
In order to weaken the adhesion of ink on the roller surface and facilitate ink removal, a substance that has a surface energy smaller than that of the ink and that forms a flat and uniform coating film is used. A coating on the roller surface is necessary.

インキの表面エネルギー(40dyn/am)よりも小
さい表面エネルギーをもつ物質としては、フッ素系樹脂
(20tht%/an ) 、シリコーン樹脂(16d
yn/an )。
Substances with surface energy smaller than that of ink (40 dyn/am) include fluororesin (20 dyn/am) and silicone resin (16 dyn/am).
yn/an).

フッ化黒鉛(8dttn/an )等があり、これらの
物質をローラー材の表面にコーティングすることにより
インキ付着力を低下させる。
Examples include fluorinated graphite (8 dttn/an), and by coating the surface of the roller material with these substances, the ink adhesion is reduced.

フッ素系樹脂のコーティング法としては種々の方法があ
るが、均一表面をもつ塗膜を形成させるため、樹脂粉末
の高温加熱あるいはフッソ系樹脂フィルムの圧胴への接
着等が好ましい。
There are various methods for coating with fluororesin, but in order to form a coating film with a uniform surface, heating the resin powder at high temperature or adhering a fluororesin film to the impression cylinder are preferred.

シリコーン樹脂成膜に関しては、種々の方法があるが、
シランカップリング等の下地処理ののちにシリコーン樹
脂の高温硬化が好ましい。フッ化黒鉛被膜に関してはフ
ッ化黒鉛のNi等による分散メッキが好ましい。これら
の塗膜あるいはメッキ層の厚さは10μ〜数100μが
好ましい。
There are various methods for silicone resin film formation.
It is preferable to cure the silicone resin at a high temperature after surface treatment such as silane coupling. Regarding the fluorinated graphite coating, dispersion plating of fluorinated graphite with Ni or the like is preferred. The thickness of these coating films or plating layers is preferably 10 μm to several 100 μm.

(作 用〕 インキ反撥性をもつフッ素系樹脂、シリコーン樹脂、7
フ化黒鉛等はインキの付着力が小さく、他の材質に付着
しているインキが、これらの材質へ接触した際にこれら
の材質面への転移は起こり難い。低エネルギー表面張力
γ、とインキの表面張力γink +これらの間の界面
張力γ41@h/aの間の関係を、模式的に第3図に示
す。
(Function) Fluorine resin with ink repellency, silicone resin, 7
Graphite fluoride and the like have a low ink adhesion force, and when ink adhering to other materials comes into contact with these materials, it is difficult for the ink to transfer to the surface of these materials. The relationship between the low energy surface tension γ, the ink surface tension γink + the interfacial tension γ41@h/a between them is schematically shown in FIG.

第3図において、 9は付着したインキ 10は低エネルギー表面 11は接触角θ 12はγ(%k(インキの表面張力) 13はγ#(固体の表面張力) 14はγ(%&/a(インキ/固体の界面張力)である
In Fig. 3, 9 is the attached ink 10, the low energy surface 11 is the contact angle θ, 12 is γ (%k (surface tension of ink), 13 is γ# (surface tension of solid), 14 is γ (%&/a (ink/solid interfacial tension).

付着力(γ(%に+γ8−γi外に/8)は小さく、接
触角θは大きく、濡れ難いことが理解される。
It is understood that the adhesive force (γ (% + γ8 - γi /8) is small, the contact angle θ is large, and it is difficult to wet.

接触面積も小さいため、インキ乾燥後にても溶剤の使用
なくして、微少の力(約0.01 kgm−” )でイ
ンキ塊の剥離が可能となる。
Since the contact area is small, even after the ink has dried, the ink lump can be peeled off with a very small force (approximately 0.01 kgm-'') without the use of a solvent.

〔実施例〕〔Example〕

(1)第1実施例 圧胴表面端部のインキ付着防止例を第1図について説明
する。
(1) First Embodiment An example of preventing ink adhesion on the end portion of the impression cylinder surface will be explained with reference to FIG.

枚葉印刷機におけるインキ転移は次のように行われる。Ink transfer in sheet-fed printing presses takes place as follows.

即ち、インキはインキ装置1から版胴3上の版2へ、版
2からブランケット胴4表面へ、次に紙面7へと順次転
移し、印刷が行なわれる。
That is, ink is sequentially transferred from the inking device 1 to the plate 2 on the plate cylinder 3, from the plate 2 to the surface of the blanket cylinder 4, and then to the paper surface 7, and printing is performed.

所が版の大きさにより版胴3表面の端部3′へインキが
転移し、版胴3表面の端部からブランケット胴4表面の
端部4“へ転移し、次に圧胴5表面の端部へとインキが
転移して、従来のクロムメッキされた圧胴ではその表面
端部がインキで汚れくる。
However, depending on the size of the plate, the ink is transferred to the end 3' of the surface of the plate cylinder 3, from the end of the surface of the plate cylinder 3 to the end 4'' of the surface of the blanket cylinder 4, and then to the end 4'' of the surface of the impression cylinder 5. The ink transfers to the edges, and the surface edges of conventional chrome-plated impression cylinders become smeared with ink.

本実施例においては、このよ5な圧胴5へのインキ転移
を防ぐために、圧胴表面及び圧胴表面の端部に、フッソ
系樹脂、あるいはシリコーン樹脂の塗膜、あるいはフッ
化黒鉛の分散メッキ層からなるインキ反撥性層5′、5
”を形成する。
In this embodiment, in order to prevent such ink transfer to the impression cylinder 5, a coating film of fluoride resin or silicone resin, or a dispersion of fluorinated graphite is applied to the impression cylinder surface and the edge of the impression cylinder surface. Ink repellent layers 5', 5 consisting of plating layers
” to form.

このようにインキ反撥性5′、5“で被覆した圧胴では
、ブランケット胴の表面端部4“ から圧胴表面端部5
“へのインキ転移が生じない。また圧胴表面端部5“に
一部付着したインキは布等で拭くことにより溶剤を用い
ないで容易に除去出来る。
In the impression cylinder coated with the ink repellents 5' and 5'' in this way, from the surface end 4'' of the blanket cylinder to the impression cylinder surface end 5
Ink transfer to the surface of the impression cylinder does not occur. In addition, ink partially adhering to the impression cylinder surface end 5 can be easily removed by wiping with a cloth or the like without using a solvent.

(2)第2実施例 中間胴表面のインキ付着防止例を第1図について説明す
る。
(2) Second Embodiment An example of preventing ink adhesion on the surface of the intermediate cylinder will be explained with reference to FIG.

枚葉町刷機における多色刷りでは、ある色の印刷ユニッ
トから次の色の印刷ユニットへ紙面が移動する際に中間
胴6の表面に紙面上に印刷されたインキが再付着し、中
間胴6表面がインキで汚れる場合がある。
In multicolor printing on sheet-fed printing presses, when the paper surface moves from a printing unit of one color to a printing unit of the next color, the ink printed on the paper surface re-adheres to the surface of the intermediate cylinder 6, and the surface of the intermediate cylinder 6 may become stained with ink.

本実施例においては、このような中間胴6へのインキ転
移を防ぐために、中間胴表面にフッソ系樹脂あるいはシ
リコーン樹脂の塗膜、あるいはフッ化黒鉛の分散メッキ
層からなるインキ反撥性層6′を形成する。
In this embodiment, in order to prevent such ink transfer to the intermediate cylinder 6, an ink repellent layer 6' consisting of a coating film of fluoride resin or silicone resin, or a dispersed plating layer of graphite fluoride is provided on the surface of the intermediate cylinder. form.

このようにインキ反撥性層6′で被覆した中間胴では、
印刷された紙面上のインキが中間胴表面6′に付着しそ
の表面が汚れることが防止される。また一部付着したイ
ンキは容易に剥離され清掃が容易である。
In the intermediate cylinder coated with the ink repellent layer 6' in this way,
Ink on the printed paper surface is prevented from adhering to the intermediate cylinder surface 6' and staining the surface. In addition, partially attached ink is easily peeled off and cleaning is easy.

(3)第3実施例 ガイドローラーのインキ付着防止例を第2図について説
明する。
(3) An example of preventing ink adhesion on the guide roller of the third embodiment will be explained with reference to FIG.

オフ輪印刷機における印刷後の紙面7がガイド90−ラ
ー8によりその進行方向が変化される際、ガイドローラ
ー8の表面にフッ素系樹脂以外の低エネルギー表面をも
つシリコーン樹脂の塗膜あるいはフッ化黒鉛の分散メッ
キ層などからなるインキ反撥性物質のコート層8′を形
成する。このようなインキ反撥性コート層8′を有する
ガイドローラー8を用いることにより、紙面上に印刷さ
れたインキがガイドローラー8表面上へ再付着し、ガイ
ドローラー8がインキにより汚れることを防ぐことが可
能となる。
When the traveling direction of the paper surface 7 after printing in an off-wheel printing machine is changed by the guide 90-roller 8, the surface of the guide roller 8 is coated with a silicone resin having a low energy surface other than a fluorine-based resin or a fluorinated resin. A coating layer 8' of an ink-repellent material such as a dispersed graphite plating layer is formed. By using the guide roller 8 having such an ink-repellent coating layer 8', it is possible to prevent the ink printed on the paper surface from re-adhering to the surface of the guide roller 8 and to prevent the guide roller 8 from becoming stained by ink. It becomes possible.

なお、オフ輪印刷機では、搬送速度が速い(6ma−’
 )ために、フッ素系樹脂コートの場合はフッ素樹脂へ
の静電気の発生が生じ、紙粉付着等の実用上障害が生ず
る。従ってインキ反慢性以外に耐静電気を考慮し、シリ
コーン樹脂あるいはフッ化黒鉛等を用いるのが好ましい
In addition, in the off-wheel printing press, the conveyance speed is fast (6 ma-'
), in the case of a fluororesin coat, static electricity is generated on the fluororesin, causing practical problems such as paper dust adhesion. Therefore, in addition to ink resistance, it is preferable to use silicone resin, fluorinated graphite, etc. in consideration of static electricity resistance.

〔発明の効果〕〔Effect of the invention〕

印刷機のローラー表面上にフッ素系樹脂、シリコーン樹
脂、フッ化黒鉛等の分散メッキのインキ反撥性層をコー
トすることにより、インキの付着による汚れを防止する
ことが可能となる。
By coating the roller surface of a printing press with an ink-repellent layer made of dispersed plating such as fluororesin, silicone resin, or graphite fluoride, it is possible to prevent stains caused by ink adhesion.

また−菌付着したインキは溶剤を使用することなしに容
易に剥離除去される。
Furthermore, ink with bacteria attached can be easily peeled off and removed without using a solvent.

枚葉印刷機の圧胴、中間胴、オフセット輪転機のガイド
ローラーにおけるインキ汚れを効果的に防止できる。
It is possible to effectively prevent ink stains on the impression cylinder and intermediate cylinder of sheet-fed printing presses and the guide rollers of offset rotary presses.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明を実施した圧胴ならびに中間胴をもつ枚
葉印刷機の要部の立面図、第2図はオフ輪印刷機におけ
る印刷後のガイドローラーを示す概略図。第3図は低エ
ネルギー表面上に付着したインキの接触角を示す説明図
である。 1・・・インキローラー群、2・・・版。 3・・・版胴、       4・・・ブランケット胴
。 5・・・圧胴、5′・・・インキ反撥性層をもつ圧胴表
面。 5//、、、・インキ反撥性層なもつ圧胴表面の端部分
。 6・・・中間胴。 6′・・・インキ反撥性層をもつ中間胴表面。 7・・・紙面。 代理人 弁理士 岡 本 重 文 外2名 1−・−インキロー5−群 3・−版胴 4・・−ブうンサット胴 5−・−圧胴 5−・・中間胴 5′・・−インキ反ゼ台ジ王B同表面 う′−インA反+!!U圧月岡表面端部う′パ°インキ
反携杜中間胴表面
FIG. 1 is an elevational view of the main parts of a sheet-fed printing press having an impression cylinder and an intermediate cylinder embodying the present invention, and FIG. 2 is a schematic diagram showing a guide roller after printing in an off-wheel printing press. FIG. 3 is an explanatory diagram showing the contact angle of ink deposited on a low energy surface. 1... Ink roller group, 2... Edition. 3... Plate cylinder, 4... Blanket cylinder. 5... Impression cylinder, 5'... Impression cylinder surface having an ink-repellent layer. 5//,,, Edge portion of impression cylinder surface with ink repellent layer. 6...Intermediate torso. 6'...Intermediate cylinder surface with ink repellent layer. 7...Paper surface. Agent Patent attorney Shige Okamoto 2 other people 1 - Ink roller 5 - Group 3 - Plate cylinder 4 - Blounsat cylinder 5 - Impression cylinder 5 - Intermediate cylinder 5' - Ink Anti-Zedaiji King B same surface U'-in A anti+! ! U pressure Tsukioka surface end U'pa ° ink anti-portion middle body surface

Claims (1)

【特許請求の範囲】[Claims]  印刷機のローラー表面に、フッソ系樹脂・シリコーン
樹脂の塗膜およびフッ化黒鉛の分散メッキ層等の低表面
エネルギー物質よりなるインキ反撥性層を設けたことを
特徴とする印刷機ローラー表面のインキ汚れ防止方法。
An ink on the surface of a printing machine roller, characterized in that an ink-repellent layer made of a low surface energy substance such as a coating film of fluoride resin/silicone resin and a dispersed plating layer of graphite fluoride is provided on the surface of the roller of a printing machine. How to prevent stains.
JP29608487A 1987-11-26 1987-11-26 Ink stain prevention on roller surface of printing machine Pending JPH01139297A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29608487A JPH01139297A (en) 1987-11-26 1987-11-26 Ink stain prevention on roller surface of printing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29608487A JPH01139297A (en) 1987-11-26 1987-11-26 Ink stain prevention on roller surface of printing machine

Publications (1)

Publication Number Publication Date
JPH01139297A true JPH01139297A (en) 1989-05-31

Family

ID=17828909

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29608487A Pending JPH01139297A (en) 1987-11-26 1987-11-26 Ink stain prevention on roller surface of printing machine

Country Status (1)

Country Link
JP (1) JPH01139297A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04310741A (en) * 1991-04-10 1992-11-02 Mitsubishi Heavy Ind Ltd Guide roller of rotary press
JPH0848087A (en) * 1994-08-08 1996-02-20 Techno Roll Kk Printing device
WO1999050071A1 (en) * 1998-03-30 1999-10-07 I•Mar Planning Inc. Ink feed roller for printers
WO2002032689A1 (en) * 2000-10-18 2002-04-25 Nanogate Gmbh Method for improving the print quality of printing machines
JP2002166677A (en) * 2000-11-30 2002-06-11 Komori Corp Printer
JP2005193437A (en) * 2004-01-05 2005-07-21 Miyakoshi Printing Machinery Co Ltd Multi-web type rotary press
JP2006145531A (en) * 2004-11-22 2006-06-08 Manufacture Favre & Perret Device for protecting access to winding mechanism of pocket watch
JP2010241054A (en) * 2009-04-08 2010-10-28 Toppan Cosmo Inc Gravure printing method
JP2015016685A (en) * 2013-06-13 2015-01-29 キヤノン株式会社 Image recording method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4849827A (en) * 1971-10-28 1973-07-13
JPS5119650A (en) * 1974-08-07 1976-02-17 Suwa Seikosha Kk Denkikamisorino sotoba
JPS522531A (en) * 1975-06-24 1977-01-10 Ricoh Co Ltd Method for preventing wear at the surface of a phtosensitive member an d film formation at toner surface
JPS5254970A (en) * 1975-10-31 1977-05-04 Matsushita Electric Works Ltd Circuit breaker
JPS56156931A (en) * 1980-05-06 1981-12-03 Nec Corp Magnetic storage medium
JPS58224366A (en) * 1982-06-24 1983-12-26 Olympus Optical Co Ltd Heat roll fixing device
JPS5946244A (en) * 1982-09-09 1984-03-15 Nissan Chem Ind Ltd Hydroxamic acid derivative and its preparation
JPS6294392A (en) * 1985-10-21 1987-04-30 Ricoh Co Ltd Impression cylinder for offset press

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4849827A (en) * 1971-10-28 1973-07-13
JPS5119650A (en) * 1974-08-07 1976-02-17 Suwa Seikosha Kk Denkikamisorino sotoba
JPS522531A (en) * 1975-06-24 1977-01-10 Ricoh Co Ltd Method for preventing wear at the surface of a phtosensitive member an d film formation at toner surface
JPS5254970A (en) * 1975-10-31 1977-05-04 Matsushita Electric Works Ltd Circuit breaker
JPS56156931A (en) * 1980-05-06 1981-12-03 Nec Corp Magnetic storage medium
JPS58224366A (en) * 1982-06-24 1983-12-26 Olympus Optical Co Ltd Heat roll fixing device
JPS5946244A (en) * 1982-09-09 1984-03-15 Nissan Chem Ind Ltd Hydroxamic acid derivative and its preparation
JPS6294392A (en) * 1985-10-21 1987-04-30 Ricoh Co Ltd Impression cylinder for offset press

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04310741A (en) * 1991-04-10 1992-11-02 Mitsubishi Heavy Ind Ltd Guide roller of rotary press
JPH0848087A (en) * 1994-08-08 1996-02-20 Techno Roll Kk Printing device
WO1999050071A1 (en) * 1998-03-30 1999-10-07 I•Mar Planning Inc. Ink feed roller for printers
US6477952B1 (en) 1998-03-30 2002-11-12 I. Mar Planning, Inc. Ink feed roller for printers
CN1133540C (en) * 1998-03-30 2004-01-07 艾玛计划有限公司 Ink feed roller for printers
WO2002032689A1 (en) * 2000-10-18 2002-04-25 Nanogate Gmbh Method for improving the print quality of printing machines
JP2002166677A (en) * 2000-11-30 2002-06-11 Komori Corp Printer
JP2005193437A (en) * 2004-01-05 2005-07-21 Miyakoshi Printing Machinery Co Ltd Multi-web type rotary press
JP4659363B2 (en) * 2004-01-05 2011-03-30 株式会社ミヤコシ Multi-web type rotary press
JP2006145531A (en) * 2004-11-22 2006-06-08 Manufacture Favre & Perret Device for protecting access to winding mechanism of pocket watch
JP2010241054A (en) * 2009-04-08 2010-10-28 Toppan Cosmo Inc Gravure printing method
JP2015016685A (en) * 2013-06-13 2015-01-29 キヤノン株式会社 Image recording method

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