JPS59209198A - Blanket for offset printing press - Google Patents

Blanket for offset printing press

Info

Publication number
JPS59209198A
JPS59209198A JP8429483A JP8429483A JPS59209198A JP S59209198 A JPS59209198 A JP S59209198A JP 8429483 A JP8429483 A JP 8429483A JP 8429483 A JP8429483 A JP 8429483A JP S59209198 A JPS59209198 A JP S59209198A
Authority
JP
Japan
Prior art keywords
layer
blanket
offset printing
printing press
thickness
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
JP8429483A
Other languages
Japanese (ja)
Inventor
Shunichi Ogita
荻田　俊一
Hisao Kagano
加賀野　久生
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.)
Sumitomo Rubber Industries Ltd
Original Assignee
Sumitomo Rubber 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 Sumitomo Rubber Industries Ltd filed Critical Sumitomo Rubber Industries Ltd
Priority to JP8429483A priority Critical patent/JPS59209198A/en
Publication of JPS59209198A publication Critical patent/JPS59209198A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N10/00—Blankets or like coverings; Coverings for wipers for intaglio printing
    • B41N10/02—Blanket structure
    • B41N10/04—Blanket structure multi-layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N2210/00—Location or type of the layers in multi-layer blankets or like coverings
    • B41N2210/02—Top layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N2210/00—Location or type of the layers in multi-layer blankets or like coverings
    • B41N2210/04—Intermediate layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N2210/00—Location or type of the layers in multi-layer blankets or like coverings
    • B41N2210/06—Backcoats; Back layers; Bottom layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N2210/00—Location or type of the layers in multi-layer blankets or like coverings
    • B41N2210/10—Location or type of the layers in multi-layer blankets or like coverings characterised by inorganic compounds, e.g. pigments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N2210/00—Location or type of the layers in multi-layer blankets or like coverings
    • B41N2210/14—Location or type of the layers in multi-layer blankets or like coverings characterised by macromolecular organic compounds

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Printing Plates And Materials Therefor (AREA)

Abstract

PURPOSE:To simplify labor for manufacture, reduce the thickness of a blanket and reduce scattering of the thickness, by constituting a blanket for an offset printing press by providing a rubber made surface layer on a metallic sheet. CONSTITUTION:A surface rubber layer 2 is provided on the metallic sheet 1 made of a metal such as steel or nickel and having a thickness of 20-100mum. A cushion layer 3 and/or a reinforcing layer 5 may be intermediately provided between the sheet 1 and the surface rubber layer 2. The cusion layer 3 can be produced by, for example, mixing microbaloons of a synthetic resin or a foaming agent, and functions to eliminate scatter of printing pressure between the rubber layer 2 and a pressure cylinder. The reinforcing layer 5 consists of a cloth, a film or the like, and functions to further enhance tensile strength.

Description

【発明の詳細な説明】 この発明は、オフセット印刷機用ブランケットに関づる
。DETAILED DESCRIPTION OF THE INVENTION This invention relates to a blanket for an offset printing press.

従来のオフセット印刷機用ブランケットは、裏面布層と
表面ゴム層との間に３層以上の補強用４ｈ層を設番ノだ
構成とし、この構成とすることにより、オフセット印刷
機用ブランケット自体に充分な引張り強度を持たせるよ
うにしている。Conventional blankets for offset printing presses have three or more reinforcing 4H layers between the back fabric layer and the front rubber layer, and with this configuration, the blanket itself for offset printing presses has a It is designed to have sufficient tensile strength.

しかし、上記オフセット印刷機用ブランケットは、裏面
布層と表面ゴム層との間に３層以−ヒの補強用布層を形
成する関係上、製造に手間がかかつて高価となるのみな
らず、厚みのばらつきを生ずる可能性が高くなるという
欠点を有していた。However, since the above-mentioned blanket for an offset printing press has three or more reinforcing fabric layers formed between the back fabric layer and the front rubber layer, it is not only labor-intensive and expensive to manufacture, but also This has the disadvantage that there is a high possibility that variations in thickness will occur.

また、従来のブランケットは、よく知られているように
、ブランケット胴の表面に形成されたクランプ溝内にそ
の一端を固定された上、他端を前記溝内に装置されたク
ランプ手段により巻き締められて前記ブランケット胴表
面に密着させられる。Furthermore, as is well known, in conventional blankets, one end is fixed in a clamp groove formed on the surface of the blanket cylinder, and the other end is tightened by a clamp means installed in the groove. and is brought into close contact with the surface of the blanket cylinder.

そのため、前記締付は操作に伴う引張力がブランケット
の全長にわたって均等に作用せず、一般に長手方向の略
中央部分が特に伸長され、該部分の厚みが比較的に薄く
なるという欠点を４１していＩこ。Therefore, the above-mentioned tightening has the drawback that the tensile force accompanying the operation does not act uniformly over the entire length of the blanket, and generally the approximately central portion in the longitudinal direction is particularly stretched, making the thickness of this portion relatively thin. I-ko.

この発明は、簡単に製造づることができ、しがも完成後
における厚みのばらつきを著しく小さくりることができ
るオフセット印刷機用プランクツ１−を捉供１−ること
により、上記の欠点を解消づることを目的とづる。The present invention solves the above-mentioned drawbacks by providing a plank for an offset printing press that is easy to manufacture and can significantly reduce the variation in thickness after completion. Write with the purpose of writing.

かかる目的を達成り−るためのこの発明のオフセット印
刷機用プランクツ１への構成は、金属製薄版上にゴム製
表面層を形成したことを特徴どしている。To achieve this object, the plank 1 for an offset printing press according to the present invention is characterized in that a rubber surface layer is formed on a thin metal plate.

以上、この発明のオフセット印刷機用ブランケットにつ
いて、実施例を示す添付図面ににって詳細に説明づる。The blanket for an offset printing press of the present invention will be described in detail with reference to the accompanying drawings showing embodiments.

第１図は、この発明のオフセット印刷機用ブランケット
の１実施例を示す斜視図、第２図は同縦断面図であり、
金属製解版（１）上に直接表面ゴム層（２）を形成して
なる。ここで金属製解版（１）としては、スチール、ニ
ッケル等種々の金属にて構成することが可能であり、例
えば２０〜１００μｍ程度の薄いスチールを使用すれば
、従来の補強用布の約４倍の引張強度を有することとな
るので、補強用布層を全て省略しても充分な引張り強度
を持たせることができる。FIG. 1 is a perspective view showing one embodiment of a blanket for an offset printing press according to the present invention, and FIG. 2 is a longitudinal sectional view of the same.
A surface rubber layer (2) is formed directly on a metal plate (1). Here, the metal plate (1) can be made of various metals such as steel and nickel. For example, if a thin steel of about 20 to 100 μm is used, it will be about 4 times thinner than the conventional reinforcing cloth. Since it has double the tensile strength, sufficient tensile strength can be provided even if the reinforcing fabric layer is omitted entirely.

したがって、オフセット印刷機用プランクツ１〜の製造
の手間を簡略化し、高価な補強用布層を不要とするので
安価となり、しがも構成要素が少ないことと相俟って、
厚みを著しく減少させるとともに（従来品が約１．０ｍ
ｍであるのに対し約０゜０６　ｎ＋ｎ＋となる。）、厚
みのばらつきを減少させることができ、また従来ブラン
ケットにお番ノるごときクランプ時の引張り作用に伴う
局部的な厚みの減少も解消される。因に、従来使用され
ている補強布一枚当たりの引張強度が平均８　ｋｇ／　
ｎｕｎであるのに対して前記金属製解版（１）のそれは
３２　ｋｇ／　ｍｍである。ぞして、以上の厚みのバラ
ツキを減少させることにより、印刷特性を高めることが
できる。Therefore, it simplifies the manufacturing process of planks 1 for offset printing presses, eliminates the need for an expensive reinforcing cloth layer, makes them cheaper, and together with the fact that there are fewer components,
In addition to significantly reducing the thickness (conventional product was approximately 1.0 m)
m, whereas it becomes approximately 0°06 n+n+. ), it is possible to reduce variations in thickness, and it also eliminates the local reduction in thickness associated with the tensile action when clamping a conventional blanket. Incidentally, the average tensile strength of each reinforcing cloth used conventionally is 8 kg/
nun, whereas that of the metal demolished plate (1) is 32 kg/mm. Therefore, by reducing the above-mentioned variation in thickness, printing characteristics can be improved.

第３図はオフセット印刷機用プランヶヅトの他の実施例
を示す縦断面図であり、第１図および第２図に示す実施
例と異なる点は金属製解版（１）上に、表面ゴム層（２
）およびクッション層（３）からなる表面層［’ｌｌを
形成した点のみである。ここでクッション層（３）とし
ては、例えば合成樹脂のマイクロバルーンや発取剤を混
入する方法又はリーチング法等により形成した微細発泡
層を用いることができる。FIG. 3 is a longitudinal cross-sectional view showing another embodiment of the plunger for an offset printing press. The difference from the embodiment shown in FIGS. (2
) and a cushion layer (3). Here, as the cushion layer (3), a fine foam layer formed by, for example, a method of mixing synthetic resin microballoons or a release agent, a leaching method, etc. can be used.

この実施例においでも、第１図および第２図に示す実施
例と同様の作用効果を秦することができる他、クッショ
ン層（３）を介在させたことにより、表面ゴムｗ４　（
２１と圧胴（図示せず）との間における〔１月〕のばら
つきに起因りるオフセット印刷のむらを解消して刷上り
精度を高く維持することができる。In this embodiment as well, it is possible to achieve the same effects as in the embodiment shown in FIGS. 1 and 2, and by interposing the cushion layer (3), the surface rubber w4 (
It is possible to eliminate unevenness in offset printing caused by variations in [January] between the printing cylinder 21 and the impression cylinder (not shown), and to maintain high printing accuracy.

第４図はオフセット印刷機用ブランケットのさらに他の
実施例を示す＠断面図であり、負）３図に承り実施例と
異なる点は、表面ゴム層（２）　Ａ３よび布。FIG. 4 is a sectional view showing still another embodiment of a blanket for an offset printing press, and the difference from the embodiment shown in FIG. 3 is that the surface rubber layer (2) is A3 and cloth.

フィルム等からなる補強層（５）で表面層（４）を形成
した点のみである。The only difference is that the surface layer (4) is formed of a reinforcing layer (5) made of a film or the like.

この実施例においても、第１図および第２図に示づ実施
例と同様の作用、効果を奏することかできる他、補強層
（５）を介在させたことにより、引張り強度をざらに向
上させると共に、先述した表面ゴム層の伸長を抑えて印
刷精度を向上させ゛ることかできる。In this embodiment as well, the same functions and effects as in the embodiments shown in FIGS. 1 and 2 can be achieved, and by interposing the reinforcing layer (5), the tensile strength is greatly improved. At the same time, printing accuracy can be improved by suppressing the elongation of the surface rubber layer mentioned above.

第５図はオフセット印刷機用ブランケットのさらに他の
実施例を示す縦断面図であり、金属製層成（１）上に、
表面ゴム層（２）、クッション層（３）、および布、フ
ィルム等からなる補強層（５）で表面層（４）を形成し
てなる。FIG. 5 is a longitudinal sectional view showing still another embodiment of the blanket for an offset printing press, in which on the metal layer (1),
The surface layer (4) is formed of a surface rubber layer (2), a cushion layer (3), and a reinforcing layer (5) made of cloth, film, or the like.

この実施例においても、第１図および第２図に示Ｊ゛実
施例と同様の作用、効果を奏することができる他、引張
り強度をさらに向上させることができ、さらには、表面
ゴム層（２）と圧胴（図示せ１′）との間における印圧
のばらつきに起因するオフセット印刷のむらを解消して
、刷上り精度を高く維持づることができる。In this embodiment as well, the same functions and effects as in the embodiment shown in FIGS. 1 and 2 can be achieved, and the tensile strength can be further improved. ) and the impression cylinder (1' in the figure), it is possible to eliminate unevenness in offset printing caused by variations in printing pressure, thereby maintaining high printing accuracy.

以上の構成の穿フセット印刷機用ブランケットをブラン
ケットシリンダーに取り付【プる場合には、粘着テープ
を用いて張りつける方法、ブランケットシリンダーに溝
を設け、クランプを用いて同定する方法等従来公知の方
法を使用することができる他、殊にブランケットの金属
製解版（１）を磁性金属で椙成１れば、ブランケットと
ブランケットシリンダー（６）との間にマグネットゴム
シート（力を介右さＵることによってもブランケットを
ブランケットシリンダー（６１Ｌご取り付けることがで
きる（第６図参照）。When attaching the above-configured blanket for a perforation set printing press to a blanket cylinder, conventionally known methods such as attaching it with adhesive tape, providing a groove in the blanket cylinder and identifying it using a clamp, etc. In addition, if the metal disassembled plate (1) of the blanket is made of magnetic metal, a magnetic rubber sheet (which can be The blanket can also be attached to the blanket cylinder (61L) (see Figure 6).

以上のようにこの発明は、金属製解版−にに表面層を形
成Ｊることによって、従来必須とされていた補強用布層
を省略することを可能としたので、製造の手間を簡略化
し、ブランケット全体として安価に提供でき、しかもブ
ランケット自体の４角成要素が少なくなることによって
、厚みを薄くするとともに、厚みのばらつきを減少させ
ることができ、さらに加えてクランプ機描による巻き締
め時の局部的厚みの減少を抑制できるという特有の効果
を秦する。As described above, this invention makes it possible to omit the reinforcing cloth layer, which was previously considered essential, by forming a surface layer on a metal plate, thereby simplifying the manufacturing process. , the blanket as a whole can be provided at low cost, and by reducing the number of square components of the blanket itself, the thickness can be reduced and variations in thickness can be reduced. It has the unique effect of suppressing local thickness reduction.

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

第１図はこの発明のオフセット印刷機用ブランケットの
一実施例を示す斜視図、第２図は同縦断面図、第３図乃
至第５図はオフセット印刷機用ブランケットの他の実施
例を示づ縦断面図、第６図はブランケットシリンダーへ
の取イ」け状態を示゛り縦断面図。 （１）・・・金属製解版、（２）・・・表面ゴム層、（
３）・・・クッション層、（４）・・・表面層、（５）
・・・補強層。FIG. 1 is a perspective view showing one embodiment of the blanket for an offset printing press according to the present invention, FIG. 2 is a longitudinal sectional view of the same, and FIGS. 3 to 5 show other embodiments of the blanket for an offset printing press according to the present invention. FIG. 6 is a longitudinal sectional view showing the state in which the blanket is installed in the cylinder. (1)...Metal disassembly plate, (2)...Surface rubber layer, (
3)...Cushion layer, (4)...Surface layer, (5)
...Reinforcement layer.

Claims (1)

【特許請求の範囲】 １、　金属製局版上にゴム製表面層を形成したことを特
徴とするオフセット印刷機用ブランケット。 ２、　２層以上の構成の表面層とした上記特許請求の範
囲第１項記載のオフセット印刷機用ブランケット。 ３、　布、フィルム等からなる補強層を有する表面層と
した上記特許請求の範囲第２項記載のオフ２セット印刷
機用プランケッ１−０ ４、　イ１１．フィルム需からなる補強層およびクッシ
ョン層を有する表面層とした上記ｖ１許請求の範囲第２
項記載のオフセット印刷機用ブランケット。[Claims] 1. A blanket for an offset printing press, characterized in that a rubber surface layer is formed on a metal stationary plate. 2. The blanket for an offset printing press according to claim 1, wherein the surface layer has a structure of two or more layers. 3. Plunket for off-line two-set printing presses 1-04 and 11. as set forth in claim 2, wherein the surface layer has a reinforcing layer made of cloth, film, etc. Claim 2 of the above v1 claim, which is a surface layer having a reinforcing layer and a cushion layer made of film.
Blanket for offset printing presses as described in section.
JP8429483A 1983-05-13 1983-05-13 Blanket for offset printing press Pending JPS59209198A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8429483A JPS59209198A (en) 1983-05-13 1983-05-13 Blanket for offset printing press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8429483A JPS59209198A (en) 1983-05-13 1983-05-13 Blanket for offset printing press

Publications (1)

Publication Number Publication Date
JPS59209198A true JPS59209198A (en) 1984-11-27

Family

ID=13826445

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8429483A Pending JPS59209198A (en) 1983-05-13 1983-05-13 Blanket for offset printing press

Country Status (1)

Country Link
JP (1) JPS59209198A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60168931U (en) * 1984-04-17 1985-11-09 三菱重工業株式会社 Blanket structure
EP0235677A2 (en) * 1986-03-06 1987-09-09 R. R. Donnelley & Sons Company Printing blanket with carrier plate and method of assembly
JPH01257098A (en) * 1988-04-07 1989-10-13 Sumitomo Rubber Ind Ltd Offset blanket
JPH03128247A (en) * 1989-10-05 1991-05-31 Heidelberger Druckmas Ag Lithographic press
JPH0564880A (en) * 1991-03-02 1993-03-19 Heidelberger Druckmas Ag Plate cylinder for roller press
US5357863A (en) * 1991-11-15 1994-10-25 Day International, Inc. Printing blanket for use with a printing cylinder to achieve a narrow gap lock-up
US5366799A (en) * 1988-12-09 1994-11-22 Day International, Inc. Printing blanket having smooth nontextured base surface
EP0844100A2 (en) * 1996-11-22 1998-05-27 Novurania S.p.A. Blanket for offset printing
EP1147915A1 (en) * 2000-04-20 2001-10-24 ContiTech Elastomer-Beschichtungen GmbH Printing blanket for use on a printing cylinder particularly for offset printing presses
US6530321B2 (en) 2000-03-21 2003-03-11 Day International, Inc. Flexible image transfer blanket having non-extensible backing
EP1504921A2 (en) 2003-08-08 2005-02-09 ContiTech Elastomer-Beschichtungen GmbH Printing blanket and its production
US7399526B2 (en) 2002-10-11 2008-07-15 Day International, Inc. Printing blanket and method for reducing corrosion and abrasion of printing blankets and blanket cylinders
DE102007013611A1 (en) 2007-03-22 2008-09-25 Contitech Elastomer-Beschichtungen Gmbh Blanket with a non-stretchable carrier layer
JP2010504234A (en) * 2006-09-20 2010-02-12 デイ インターナショナル インコーポレーテッド Printing blanket or sleeve having a layer of thermoplastic polyurethane or thermoplastic polyurethane alloy
EP2246189A1 (en) * 2008-02-22 2010-11-03 Mitsubishi Heavy Industries Printing & Packaging Machinery, Ltd. Rotary press
CN102310677A (en) * 2005-11-09 2012-01-11 白昼国际有限公司 Comprise the cloth inserted rubber printing plate and the combination thereof of relief area

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5518056B2 (en) * 1975-02-18 1980-05-16

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5518056B2 (en) * 1975-02-18 1980-05-16

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60168931U (en) * 1984-04-17 1985-11-09 三菱重工業株式会社 Blanket structure
EP0235677A2 (en) * 1986-03-06 1987-09-09 R. R. Donnelley & Sons Company Printing blanket with carrier plate and method of assembly
JPH01257098A (en) * 1988-04-07 1989-10-13 Sumitomo Rubber Ind Ltd Offset blanket
US5366799A (en) * 1988-12-09 1994-11-22 Day International, Inc. Printing blanket having smooth nontextured base surface
JPH03128247A (en) * 1989-10-05 1991-05-31 Heidelberger Druckmas Ag Lithographic press
JPH0564880A (en) * 1991-03-02 1993-03-19 Heidelberger Druckmas Ag Plate cylinder for roller press
US5357863A (en) * 1991-11-15 1994-10-25 Day International, Inc. Printing blanket for use with a printing cylinder to achieve a narrow gap lock-up
EP0844100A3 (en) * 1996-11-22 1998-09-09 Novurania S.p.A. Blanket for offset printing
EP0844100A2 (en) * 1996-11-22 1998-05-27 Novurania S.p.A. Blanket for offset printing
US6019042A (en) * 1996-11-22 2000-02-01 Novurania, S.P.A. Printing blanket for offset printing
US6530321B2 (en) 2000-03-21 2003-03-11 Day International, Inc. Flexible image transfer blanket having non-extensible backing
EP1147915A1 (en) * 2000-04-20 2001-10-24 ContiTech Elastomer-Beschichtungen GmbH Printing blanket for use on a printing cylinder particularly for offset printing presses
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