JPS62227792A - Offset blanket for printing - Google Patents
Offset blanket for printingInfo
- Publication number
- JPS62227792A JPS62227792A JP7360686A JP7360686A JPS62227792A JP S62227792 A JPS62227792 A JP S62227792A JP 7360686 A JP7360686 A JP 7360686A JP 7360686 A JP7360686 A JP 7360686A JP S62227792 A JPS62227792 A JP S62227792A
- Authority
- JP
- Japan
- Prior art keywords
- printing
- layer
- printing layer
- paper
- blanket
- 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
- 238000003854 Surface Print Methods 0.000 claims abstract description 15
- 239000013013 elastic material Substances 0.000 claims abstract description 5
- 238000010030 laminating Methods 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 abstract description 9
- 239000005060 rubber Substances 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 4
- 239000004744 fabric Substances 0.000 abstract description 3
- 230000003746 surface roughness Effects 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- 239000000123 paper Substances 0.000 description 10
- 239000002655 kraft paper Substances 0.000 description 6
- 239000000835 fiber Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 241000519995 Stachys sylvatica Species 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 239000002984 plastic foam Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004447 silicone coating Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- KAKZBPTYRLMSJV-UHFFFAOYSA-N vinyl-ethylene Natural products C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
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
- B41N2210/04—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
- B41N2210/14—Location or type of the layers in multi-layer blankets or like coverings characterised by macromolecular organic compounds
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、クラフト紙等の粗面紙にインキを充分に転移
させるための印刷用オフセット・ブランケットに関する
。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a printing offset blanket for sufficiently transferring ink to rough paper such as kraft paper.
従来の印刷用オフセット・ブランケットは、触針型粗さ
計にて１０点平均粗さ２μｍ以上〜１５μｍ表面粗さと
、ＪＩＳ硬度５０〜６００表面ゴムを有している。A conventional printing offset blanket has a surface roughness with a 10-point average roughness of 2 μm or more to 15 μm as measured by a stylus type roughness meter, and a surface rubber with a JIS hardness of 50 to 600.
ところで、このブランケットにてクラフト紙のような表
面粗さの比較的粗い紙の印刷を行なう場合には、ベタ部
のインキの付きムラや白扱けと称するインキの付着しな
い部分が発生する。By the way, when printing on paper with a relatively rough surface, such as kraft paper, with this blanket, uneven ink coverage in solid areas and areas to which ink does not adhere occur, which are referred to as white areas.
そこで本発明は、粗面紙への印刷に際しても、インキの
付きムラや白抜けが生ずることなく、インキを充分に転
移できる印刷用オフセット・ブランケットを提供するこ
とを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a printing offset blanket that can sufficiently transfer ink without causing uneven ink application or white spots even when printing on rough paper.
本発明の印刷用オフセット・ブランケットは、上記目的
を達成するため、表面印刷層と、該表面印刷層の下面に
多孔質の圧縮性層を備え又は備えていない１層又は複数
層の支持体層を積層してなる印刷用オフセット・ブラン
ケットであって、前記表面印刷層がＪＩＳ硬度２０〜４
ｏの耐油性弾性材により、表面の１０点平均粗さが２
Ｊｌｌ１１以上〜１５ｕｍである如く形成された柔軟な
弾性層であることを特徴とするものである。In order to achieve the above object, the printing offset blanket of the present invention includes a surface printing layer and one or more support layers with or without a porous compressible layer on the lower surface of the surface printing layer. An offset blanket for printing formed by laminating layers, wherein the surface printing layer has a JIS hardness of 20 to 4.
The 10-point average roughness of the surface is 2 due to the oil-resistant elastic material of o.
It is characterized by being a flexible elastic layer formed such that Jll is 11 to 15 um.
本発明者は、前述の従来のブランケットにより印刷テス
トを行い、粗面紙例えばクラフト紙に於て殊にベタ部の
印刷に於て印刷ムラ又は０汰けの現象が多発することを
見出し、この欠点を解消するには、従来のブランケット
では到底考えられない程に柔らかくした表面ゴムにすれ
ばよいとの知見を得た。The present inventor conducted a printing test using the above-mentioned conventional blanket, and found that the phenomenon of printing unevenness or zero leveling occurs frequently on rough surface paper such as kraft paper, especially when printing solid areas. In order to eliminate the drawbacks, we found that the surface rubber should be made softer than conventional blankets.
従来のブランケットの表面ゴムのＪＩＳ硬度は５０〜６
０であり、これに対し本発明では、表面印刷層のＪＩＳ
硬度は、２０〜４０である。この硬度の範囲の表面ゴム
を使用すれば版からブランケットに転移されたインキは
、クラフト紙の粗面の凸凹の部分に充分に押し込まれ、
インキがムラなく転写される。The JIS hardness of the surface rubber of conventional blankets is 50 to 6.
0, whereas in the present invention, the JIS of the surface printing layer
Hardness is 20-40. If a surface rubber in this range of hardness is used, the ink transferred from the plate to the blanket will be sufficiently pushed into the uneven parts of the rough surface of the kraft paper.
Ink is transferred evenly.
尚、本発明に於いて、表面印刷層はアクリロニトリル・
ブタジェン共重合ゴム（ＮＢＲ）、クロロプレンゴム（
ＣＲ）等の合成ゴム、又はポリウレタン等の耐油性弾性
材で作られる。In addition, in the present invention, the surface printing layer is made of acrylonitrile.
Butadiene copolymer rubber (NBR), chloroprene rubber (
It is made of synthetic rubber such as CR) or oil-resistant elastic material such as polyurethane.
一方、表面印刷層と支持体層との間又は複数の該支持体
層の間に、発泡材又は微小ガラスピーズや熱可塑性合成
樹脂のマイクロカプセル、プラスチック・フオームやコ
ルクの微小粒状物を混入したゴム組成物又は塩類等の可
溶性微小粒状物を混入して溶剤等により溶出したものが
多孔質圧縮性層として使用される。支持体層は、綿布又
はポリエステル、レーヨン等の合成繊維で作られたｔａ
ｔａ補強布のほか、プラスチックシート又は金属薄板な
ど非伸長性もしくは伸長性の少ない、且っ可撓性の材料
によりつくられ、又必要に応じて１ＷＩ又は複数層の支
持体が使用される。そして、この支持体層は、ブランケ
ット全体の好ましくない長手方向及び幅方向への伸長を
防止する。On the other hand, foamed material, microscopic glass beads, thermoplastic synthetic resin microcapsules, plastic foam, or cork microparticles are mixed between the surface printing layer and the support layer or between a plurality of the support layers. A rubber composition or a material mixed with soluble fine particles such as salts and dissolved out with a solvent or the like is used as the porous compressible layer. The support layer is made of cotton cloth or synthetic fibers such as polyester and rayon.
In addition to the ta reinforcing cloth, it is made of a non-extensible or less extensible and flexible material such as a plastic sheet or a thin metal plate, and if necessary, one WI or multiple layers of support may be used. This support layer then prevents undesirable longitudinal and widthwise stretching of the entire blanket.
以下本発明の一実施例を図面に基づいて説明する。 An embodiment of the present invention will be described below based on the drawings.
図は本発明の一実施例を示す印刷用オフセット・ブラン
ケットの部分拡大断面図で、ブランケット１は、ゴム組
成物よりなる表面中１１ＩＩ層２と、該表面印刷ＦＭ２
の下面に積層された１層の平織布よりなる繊維支持体層
３と、多孔質の圧縮性層４と、該圧縮性層４のさらに下
面に積層された３層の繊維支持体層５，６．７とから成
っている。The figure is a partially enlarged sectional view of an offset blanket for printing showing an embodiment of the present invention.
A fiber support layer 3 made of one layer of plain woven fabric laminated on the lower surface of the , a porous compressible layer 4 , and three fiber support layers 5 laminated on the lower surface of the compressible layer 4 , 6.7.
本ブランケットは、離型紙としてシリコーンコーティン
グにより鏡面加工されたゲント紙を用い、積層された１
〜６の該１？Ａ層物の表面印刷層に該紙を当てて加硫し
、加硫後、該紙を取り除いて完成された。This blanket uses Ghent paper, which has been mirror-finished with silicone coating, as the release paper, and is made of laminated paper.
~1 of 6? The paper was applied to the surface printing layer of the A-layer product and vulcanized, and after vulcanization, the paper was removed to complete the product.
本発明のブランケットでは表面印刷層にＪＩＳ硬度２０
と４０のゴムを用い、１０点平均粗さ５鵬、１０ｕｍに
研磨し通常のブランケットでＪＩＳ硬度５５の表面ゴム
と表面粗さ１０点平均粗さ５μｍとを比較してクラフト
紙での印刷テストを行なった。In the blanket of the present invention, the surface printing layer has a JIS hardness of 20
Printing test on kraft paper using a rubber with a 10-point average roughness of 5μm and a surface roughness of 5μm compared with a surface rubber with a JIS hardness of 55 using a normal blanket. I did it.
評価結果は下記の通りであった。The evaluation results were as follows.
本発明の印刷用オフセット・ブランケットは、以上のよ
うに、表面印刷層をＪＩＳｖ！！度２０〜４０の耐油性
弾性材により、表面の１０点平均粗さが２ Ｉ１ｍ以上
〜１５ａｍである如く柔軟に形成したから、クラフト紙
等の粗面紙への印刷も、インキの付きムラや自失けが生
ずることなく、充分に行なうことができる。As described above, the printing offset blanket of the present invention has a surface printing layer conforming to the JISv standard. ! The oil-resistant elastic material with a degree of strength of 20 to 40 is used to flexibly form the surface with a 10-point average roughness of 2 I1 m or more to 15 am, so printing on rough paper such as kraft paper can also be done without uneven ink adhesion. You can do it well without injuring yourself.
図は本発明の一実施例を示す印刷用オフセット・ブラン
ケットの部分拡大断面図である。The figure is a partially enlarged sectional view of an offset blanket for printing showing an embodiment of the present invention.
Claims (1)
を備え又は備えていない１層又は複数層の支持体層を積
層してなる印刷用オフセット・ブランケットであって、
前記表面印刷層がＪＩＳ硬度２０〜４０の耐油性弾性材
により、表面の１０点平均粗さが２μｍ以上〜１５μｍ
である如く形成された柔軟な弾性層であることを特徴と
する印刷用オフセット・ブランケット。A printing offset blanket formed by laminating a surface printing layer and one or more support layers with or without a porous compressible layer on the lower surface of the surface printing layer,
The surface printing layer is made of an oil-resistant elastic material with a JIS hardness of 20 to 40, and the surface has a 10-point average roughness of 2 μm or more to 15 μm.
An offset blanket for printing, characterized in that it is a flexible elastic layer formed as follows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7360686A JPS62227792A (en) | 1986-03-31 | 1986-03-31 | Offset blanket for printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7360686A JPS62227792A (en) | 1986-03-31 | 1986-03-31 | Offset blanket for printing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62227792A true JPS62227792A (en) | 1987-10-06 |
Family
ID=13523159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7360686A Pending JPS62227792A (en) | 1986-03-31 | 1986-03-31 | Offset blanket for printing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62227792A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01297296A (en) * | 1988-05-26 | 1989-11-30 | Sumitomo Rubber Ind Ltd | Offset blanket |
| EP1598185A1 (en) * | 2004-05-21 | 2005-11-23 | DeMaxz Deutschland GmbH | Device and process to print on wood or plastic substrate |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4718245U (en) * | 1971-03-30 | 1972-10-31 | ||
| JPS6143596A (en) * | 1984-08-06 | 1986-03-03 | Sumitomo Rubber Ind Ltd | Offset blanket for printing |
-
1986
- 1986-03-31 JP JP7360686A patent/JPS62227792A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4718245U (en) * | 1971-03-30 | 1972-10-31 | ||
| JPS6143596A (en) * | 1984-08-06 | 1986-03-03 | Sumitomo Rubber Ind Ltd | Offset blanket for printing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01297296A (en) * | 1988-05-26 | 1989-11-30 | Sumitomo Rubber Ind Ltd | Offset blanket |
| EP1598185A1 (en) * | 2004-05-21 | 2005-11-23 | DeMaxz Deutschland GmbH | Device and process to print on wood or plastic substrate |
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