JP2005212188A - Machine plate - Google Patents

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Publication number
JP2005212188A
JP2005212188A JP2004019671A JP2004019671A JP2005212188A JP 2005212188 A JP2005212188 A JP 2005212188A JP 2004019671 A JP2004019671 A JP 2004019671A JP 2004019671 A JP2004019671 A JP 2004019671A JP 2005212188 A JP2005212188 A JP 2005212188A
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Prior art keywords
plate
printing
printing plate
sheet
cylinder roll
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JP2004019671A
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Japanese (ja)
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Jinichiro Maeda
甚一郎 前田
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HOSHODO KK
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HOSHODO KK
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Priority to JP2004019671A priority Critical patent/JP2005212188A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a machine plate which prevents a deviation in varnishing and which can realize a long life. <P>SOLUTION: Both ends of a machine plate sheet 4, which is manufactured by optical etching, are folded, so that a long plate-like intermediate plate 12 can be held inside it. Long plate-like upper and lower plates 11 and 13 are pressed against the top surface and undersurface of a folded part, and the upper plate 11, the intermediate plate 12 and the lower plate 13 are connected together by a fixing means such as a rivet 15, so as to serve as a part 10 to be locked to a plate cylinder roll 20. Thus, the machine plate, which has a firm structure, can be tightly wound around the plate cylinder roll by strong force and firmly attached thereto. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、凸版印刷などの印刷装置に用いられる刷版に関するものである。   The present invention relates to a printing plate used in a printing apparatus such as relief printing.

図6は、従来の刷版の版形成前の斜視図、図7は同刷版の版形成後の斜視図である。図6において、刷版100の主体となる刷版シート101は、上下2枚の樹脂製の上シート102と下シート103を貼り合わせて成っており、その両側部には断面コ字形の長尺棒状の係止部104がカシメ手段などにより固着されている。係止部104は、刷版100を印刷装置の版胴ロールの表面(周面)に巻回装着して固定するためのものである。   FIG. 6 is a perspective view of a conventional printing plate before plate formation, and FIG. 7 is a perspective view of the printing plate after plate formation. In FIG. 6, a printing plate sheet 101 which is a main body of the printing plate 100 is formed by bonding two upper and lower resin upper sheets 102 and lower sheets 103, and has a long U-shaped cross section on both sides thereof. A rod-like locking portion 104 is fixed by caulking means or the like. The locking portion 104 is for winding and fixing the printing plate 100 on the surface (circumferential surface) of the plate cylinder roll of the printing apparatus.

上シート102は、鋭利なナイフなどにより部分的に切除され、所望の図形や文字などの版(印刷パターン)が形成される。図7は、版105が形成された刷版を示している。本例では、版105は円形である。本例の刷版100はニス塗りのための刷版であって、用紙などの被印刷物の版105に対応する箇所にはニスは塗布されず、後工程などにおいてこの不塗布箇所にバーコードや賞味期限などの所望の文字等が印刷される。   The upper sheet 102 is partially cut away with a sharp knife or the like to form a plate (printing pattern) such as a desired figure or character. FIG. 7 shows the printing plate on which the plate 105 is formed. In this example, the plate 105 is circular. The printing plate 100 of this example is a printing plate for varnishing, and the varnish is not applied to the portion corresponding to the printing plate 105 such as paper, and a bar code or Desired characters such as the expiration date are printed.

図8は、版105が形成された部分の部分拡大断面図であって、ナイフなどで上シート102を切り込んで版105を切り抜き形成したことにより、下シート103の表面にはナイフの刃先の切り痕106が生じている。L1は版105の幅である。なお、図6に示す刷版は市販品であり、印刷工場はこの市販品を購入し、これを印刷工場内で加工して、図7に示す刷版を得る。   FIG. 8 is a partially enlarged cross-sectional view of a portion where the plate 105 is formed. The upper sheet 102 is cut out with a knife or the like, and the plate 105 is cut out to form a cutting edge of the knife on the surface of the lower sheet 103. A mark 106 is generated. L1 is the width of the plate 105. The printing plate shown in FIG. 6 is a commercial product, and the printing factory purchases this commercial product and processes it in the printing factory to obtain the printing plate shown in FIG.

以上のようにして形成された刷版は、印刷装置の版胴ロールに巻回して装着される(特許文献1)。図9は、刷版を版胴ロールに装着した状態での部分拡大断面図であって、A’はA部分の拡大図である。刷版100は、版胴ロール110に強く巻回して装着されるため、強い引張力Fが加わる。このため、切り痕106は図示するように拡大し、版105の幅はL1からL2に広がる(L2>L1)。広がり幅ΔL=L2−L1はニスズレ(印刷ズレ)の原因となるが、この広がり幅ΔLは印刷時間や印刷回数が増加するのにともない次第に大きくなり、ついには刷版100は使用不可となる。
特開2002−292827号公報
The printing plate formed as described above is wound and mounted on a plate cylinder roll of a printing apparatus (Patent Document 1). FIG. 9 is a partially enlarged sectional view of the printing plate mounted on the plate cylinder roll, and A ′ is an enlarged view of the A portion. Since the printing plate 100 is tightly wound around the plate cylinder roll 110, a strong tensile force F is applied. For this reason, the notch 106 is enlarged as illustrated, and the width of the plate 105 is expanded from L1 to L2 (L2> L1). The spreading width ΔL = L2−L1 causes a varnish (printing deviation), but the spreading width ΔL gradually increases as the printing time and the number of printings increase, and finally the printing plate 100 becomes unusable.
JP 2002-292828 A

以上のように従来の刷版100はナイフにより版105を形成していたため、その切り痕106の拡大によってニスズレ(印刷ズレ)が生じやすく、またその結果、使用可能な寿命も短いという問題点があった。   As described above, since the conventional printing plate 100 forms the plate 105 with a knife, the enlargement of the notch 106 is likely to cause varnish (print displacement), and as a result, the usable life is short. there were.

そこで本発明は、上記従来の問題点を解消し、ニスズレがなく、長寿命を実現できる刷版を提供することを目的とする。   SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a printing plate that solves the above-described conventional problems and that can realize a long life without causing varnishing.

本発明の刷版は、光学的エッチングにより製造された刷版シートの両端部を折り曲げてその内部に長板状の中板を抱き込むとともに、折り曲げ部の上面と下面に長板状の上板と下板を押し当て、この上板と中板と下板を固着手段により結合して版胴ロールへの係止部としたものである。   The printing plate of the present invention is formed by bending both ends of a printing plate sheet produced by optical etching and embedding a long plate-like middle plate therein, and at the upper and lower surfaces of the bent portion, And the lower plate are pressed against each other, and the upper plate, the middle plate, and the lower plate are coupled by a fixing means to form a locking portion to the plate cylinder roll.

好ましくは、上板、中板、下板と刷版シートの折り曲げ部の当接面にボンドを塗布したものである。   Preferably, the upper plate, the middle plate, the lower plate, and the contact surface of the bent portion of the printing plate sheet are coated with a bond.

本発明の刷版の版は、光学的エッチングにより形成するので、ナイフで形成する従来の刷版のように切り痕は生じない。したがって刷版を強い力できつく版胴に巻回して装着しても版は拡大せず、ニスズレ(印刷ズレ)は生じない。また係止部は印刷工場内などで簡単に組立てられるので、印刷工場は図6に示す従来の刷版を購入する必要はなく、簡単に印刷工場内で刷版を製造できる。しかも、係止部は刷版シートの両端部を折り曲げてその内部に中板を抱き込むとともに、折り曲げ部の上面と下面に上板と下板を押し当て、この上板と中板と下板をリベットなどの固着手段により結合して組立てられるので、刷版シートの両側部の構造は強固なものとなり、したがって刷版を強い力できつく版胴ロールに巻き付けてしっかり装着することができる。   Since the plate of the printing plate of the present invention is formed by optical etching, there is no notch as in the conventional printing plate formed with a knife. Therefore, even if the printing plate is wound around the plate cylinder with a strong force and mounted, the plate does not expand and no varnish (printing deviation) occurs. Further, since the locking portion can be easily assembled in the printing factory or the like, the printing factory does not need to purchase the conventional printing plate shown in FIG. 6, and can easily produce the printing plate in the printing factory. In addition, the locking portion bends both ends of the printing plate sheet and embeds the middle plate therein, and presses the upper and lower plates against the upper and lower surfaces of the folded portion, and this upper plate, middle plate and lower plate Are combined by a fixing means such as a rivet, so that the structure of both sides of the printing plate sheet becomes strong, and therefore the printing plate can be wound around a plate cylinder roll which can be strongly attached and firmly attached.

図1は本発明の実施の形態における刷版の斜視図、図2は印刷装置の側面図、図3(a)、(b)は版の形成工程図、図4は係止部の分解斜視図、図5(a)は組立前の係止部の断面図、図5(b)は組立後の係止部の断面図である。   1 is a perspective view of a printing plate according to an embodiment of the present invention, FIG. 2 is a side view of the printing apparatus, FIGS. 3A and 3B are diagrams of a plate forming process, and FIG. 4 is an exploded perspective view of a locking portion. 5A is a cross-sectional view of the locking portion before assembly, and FIG. 5B is a cross-sectional view of the locking portion after assembly.

図1において、刷版1は上シート2と下シート3から成る刷版シート4の両側部に係止部10を設けて成っている。上シート2には、後述する光学的エッチング法により、印刷パターンである版9が形成されている。   In FIG. 1, the printing plate 1 is formed by providing locking portions 10 on both sides of a printing plate sheet 4 composed of an upper sheet 2 and a lower sheet 3. A plate 9 that is a printing pattern is formed on the upper sheet 2 by an optical etching method described later.

図2は、この刷版を用いる印刷装置を示している。20は版胴ロールであり、その表面(周面)に刷版1が巻回して装着されている。21は版胴ロール20の軸部である。係止部10は版胴ロール20の内部に係止されている。版胴ロール20の上部にはアニロックスロール30が設けられている。31はアニロックスロール30の軸部である。アニロックスロール30にはインキ供給器32が当接して設けられており、チューブ33を通してインキが供給され、アニロックスロール30の表面(周面)に供給・塗布される。   FIG. 2 shows a printing apparatus using this printing plate. Reference numeral 20 denotes a plate cylinder roll, on which the printing plate 1 is wound and mounted. Reference numeral 21 denotes a shaft portion of the plate cylinder roll 20. The locking portion 10 is locked inside the plate cylinder roll 20. An anilox roll 30 is provided on the upper part of the plate cylinder roll 20. Reference numeral 31 denotes a shaft portion of the anilox roll 30. An anilox roll 30 is provided with an ink supplier 32 in contact therewith, and ink is supplied through the tube 33 and supplied to and applied to the surface (circumferential surface) of the anilox roll 30.

版胴ロール20の下部には給紙ロール40が設けられており、被印刷物としての用紙41が供給される。用紙41は刷版1に当接する。版胴ロール20とアニロックスロール30をそれぞれ矢印A、B方向へ回転させながら、用紙41を矢印C方向へ搬送することにより、用紙41に印刷がなされる。   A paper feed roll 40 is provided below the plate cylinder roll 20, and a paper 41 as a printing material is supplied. The paper 41 contacts the printing plate 1. Printing is performed on the paper 41 by conveying the paper 41 in the direction of arrow C while rotating the plate cylinder roll 20 and the anilox roll 30 in the directions of arrows A and B, respectively.

次に、図3(a)、(b)を参照して版を光学的エッチング法により形成する方法を説明する。図3において、2’は上シート2となる光硬化材であり、下シート3上に塗布するなどして形成されている。5は光硬化材2’上に重ねられたマスクであり、光遮断部5aが形成されている。上方の光源6から光を照射すると、透光部5bに露呈する光硬化材2’は硬化し、光遮断部5aの直下の光硬化材2’は未硬化のままとなる。そこでマスク5を取りはずし、溶剤で洗浄するなどして未硬化部を除去すれば、図3(b)に示す版9が形成された刷版シート4が出来上る。   Next, a method for forming a plate by optical etching will be described with reference to FIGS. In FIG. 3, 2 ′ is a photo-curing material that becomes the upper sheet 2, and is formed by coating on the lower sheet 3. Reference numeral 5 denotes a mask superimposed on the photo-curing material 2 ′, and a light blocking part 5 a is formed. When light is irradiated from the upper light source 6, the photo-curing material 2 'exposed to the light transmitting portion 5b is cured, and the photo-curing material 2' directly below the light blocking portion 5a remains uncured. If the mask 5 is removed and the uncured portion is removed by washing with a solvent or the like, the printing plate sheet 4 on which the plate 9 shown in FIG. 3B is formed is obtained.

次に、上記のようにして製造された刷版シート4の両側部に係止部を設け、図1に示す刷版1を製造する方法を説明する。図4は係止部10の分解斜視図であって、それぞれ長板状の金属製の上板11、中板12、下板13から成っている。これらには、ピッチをおいて孔部14が開孔されている。   Next, a method of manufacturing the printing plate 1 shown in FIG. 1 by providing locking portions on both sides of the printing plate sheet 4 manufactured as described above will be described. FIG. 4 is an exploded perspective view of the locking portion 10, which is composed of a long plate-like metal upper plate 11, middle plate 12, and lower plate 13. In these, holes 14 are opened at a pitch.

図5(a)に示すように、刷版シート4の両端部を折り曲げ、中板12を抱き込む。望ましくは、上板11の下面、中板12の上下両面、下板13の上面(すなわち上板11、中板12、下板13と刷版シート4の折り曲げ部の当接面)にはボンドmを塗布し、折り曲げ部の上面と下面にそれぞれ上板11と下板13を押し当てる。   As shown in FIG. 5A, both ends of the printing plate sheet 4 are bent and the intermediate plate 12 is held. Desirably, bonds are bonded to the lower surface of the upper plate 11, the upper and lower surfaces of the intermediate plate 12, and the upper surface of the lower plate 13 (that is, the contact surfaces of the bent portions of the upper plate 11, the intermediate plate 12, the lower plate 13 and the printing plate sheet 4). m is applied, and the upper plate 11 and the lower plate 13 are pressed against the upper and lower surfaces of the bent portion, respectively.

次いで、孔部14を貫通する固着手段としてのリベット15により、上板11、中板12、下板13をしっかり結合し、これにより刷版シート4の両端部に上板11、中板12、下板13を固着することにより係止部10を形成する。図5(a)、(b)は、左端部のみを示しているが、右端部も左端部と同様にして係止部10が形成される。   Next, the upper plate 11, the middle plate 12, and the lower plate 13 are firmly coupled by the rivets 15 as the fixing means penetrating the hole portion 14, and thereby the upper plate 11, the middle plate 12, The locking portion 10 is formed by fixing the lower plate 13. 5A and 5B show only the left end portion, the locking portion 10 is formed in the right end portion in the same manner as the left end portion.

本発明の刷版の版は、光学的エッチングにより形成するので、ナイフで形成する従来の刷版のように切り痕は生じない。したがって刷版を強い力できつく版胴に巻回して装着しても版は拡大せず、ニスズレ(印刷ズレ)は生じない。また係止部は印刷工場内などで簡単に組立てられるので、印刷工場は図6に示す従来の刷版を購入する必要はなく、簡単に印刷工場内で刷版を製造できる。しかも、係止部は刷版シートの両端部を折り曲げてその内部に中板を抱き込むとともに、折り曲げ部の上面と下面に上板と下板を押し当て、この上板と中板と下板をリベットなどの固着手段により固着して組立てられるので、その構造は強固であり、したがって刷版を強い力できつく版胴ロールに巻き付けてしっかり装着することができる。   Since the plate of the printing plate of the present invention is formed by optical etching, there is no notch as in the conventional printing plate formed with a knife. Therefore, even if the printing plate is wound around the plate cylinder with a strong force and mounted, the plate does not expand and no varnish (printing deviation) occurs. Further, since the locking portion can be easily assembled in the printing factory or the like, the printing factory does not need to purchase the conventional printing plate shown in FIG. 6, and can easily produce the printing plate in the printing factory. In addition, the locking portion bends both ends of the printing plate sheet and embeds the middle plate therein, and presses the upper and lower plates against the upper and lower surfaces of the bent portion, and this upper plate, middle plate and lower plate Is firmly assembled by a fixing means such as a rivet, so that the structure is strong. Therefore, the printing plate can be wound around a plate cylinder roll with a strong force and firmly mounted.

本発明の実施の形態における刷版の斜視図The perspective view of the printing plate in embodiment of this invention 本発明の実施の形態における印刷装置の側面図Side view of a printing apparatus according to an embodiment of the present invention (a)本発明の実施の形態における版の形成工程図(A) Plate formation process diagram in the embodiment of the present invention (b)本発明の実施の形態における版の形成工程図(B) Plate forming process diagram in the embodiment of the present invention 本発明の実施の形態における係止部の分解斜視図The disassembled perspective view of the latching | locking part in embodiment of this invention (a)本発明の実施の形態における組立前の係止部の断面図(A) Sectional drawing of the latching | locking part before the assembly in embodiment of this invention (b)本発明の実施の形態における組立後の係止部の断面図(B) Sectional view of the locking portion after assembly in the embodiment of the present invention 従来の刷版の版形成前の斜視図A perspective view of a conventional printing plate before plate formation 従来の刷版の版形成後の斜視図Perspective view after plate formation of conventional printing plate 版が形成された部分の部分拡大断面図Partial enlarged sectional view of the part where the plate is formed 版胴ロールに装着した状態での部分拡大断面図Partial enlarged cross-sectional view with the plate cylinder roll mounted

符号の説明Explanation of symbols

1 刷版
2 上シート
3 下シート
4 刷版シート
9 版
10 係止部
11 上板
12 中板
13 下板
15 リベット(固着手段)
20 版胴ロール
m ボンド
DESCRIPTION OF SYMBOLS 1 Printing plate 2 Upper sheet 3 Lower sheet 4 Printing plate sheet 9 Plate 10 Locking part 11 Upper plate 12 Middle plate 13 Lower plate 15 Rivet (fixing means)
20 plate cylinder roll m bond

Claims (2)

光学的エッチングにより製造された刷版シートの両端部を折り曲げてその内部に長板状の中板を抱き込むとともに、折り曲げ部の上面と下面に長板状の上板と下板を押し当て、この上板と中板と下板を固着手段により結合して版胴ロールへの係止部としたことを特徴とする刷版。   Bending both ends of the printing plate sheet produced by optical etching and embedding a long plate-like middle plate therein, and pressing the long plate-like upper and lower plates against the upper and lower surfaces of the bent portion, A printing plate characterized in that the upper plate, the middle plate, and the lower plate are joined together by a fixing means to form a locking portion to the plate cylinder roll. 上板、中板、下板と刷版シートの折り曲げ部の当接面にボンドを塗布したことを特徴とする請求項1記載の刷版。
2. The printing plate according to claim 1, wherein a bond is applied to the contact surfaces of the bent portions of the upper plate, the middle plate, the lower plate and the printing plate sheet.
JP2004019671A 2004-01-28 2004-01-28 Machine plate Pending JP2005212188A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011121212A (en) * 2009-12-09 2011-06-23 Toray Ind Inc Method for manufacturing printing plate, and printing plate
JP4917693B1 (en) * 2011-08-01 2012-04-18 株式会社コムラテック Flexographic printing plate support

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011121212A (en) * 2009-12-09 2011-06-23 Toray Ind Inc Method for manufacturing printing plate, and printing plate
JP4917693B1 (en) * 2011-08-01 2012-04-18 株式会社コムラテック Flexographic printing plate support

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