JPH08197326A - Production of cut photosensitive lithographic printing block and production of cut metallic sheet stack - Google Patents
Production of cut photosensitive lithographic printing block and production of cut metallic sheet stackInfo
- Publication number
- JPH08197326A JPH08197326A JP1133095A JP1133095A JPH08197326A JP H08197326 A JPH08197326 A JP H08197326A JP 1133095 A JP1133095 A JP 1133095A JP 1133095 A JP1133095 A JP 1133095A JP H08197326 A JPH08197326 A JP H08197326A
- Authority
- JP
- Japan
- Prior art keywords
- lithographic printing
- photosensitive lithographic
- cutting
- cutting blade
- cut
- 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
Landscapes
- Photosensitive Polymer And Photoresist Processing (AREA)
- Accessories And Tools For Shearing Machines (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、断裁済感光性平版印刷
版の生産方法および断裁済金属薄板集積体の生産方法に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a cut photosensitive lithographic printing plate and a method for producing a cut metal thin plate aggregate.
【０００２】[0002]
【従来の技術】従来、集積された感光性平版印刷版など
の金属薄板集積体を断裁する断裁刃は表面粗さＲａが0.
1〜0.2の刃が用いられてきた。2. Description of the Related Art Conventionally, a cutting blade for cutting a metal thin plate aggregate such as an accumulated photosensitive lithographic printing plate has a surface roughness Ra of 0.
Blades of 1 to 0.2 have been used.
【０００３】[0003]
【発明が解決しようとする課題】しかし、従来の断裁刃
では、度々、製品の切り口にバリなどの切れ味不良が発
生していた。そのため、切れ味の悪くなった断裁刃の研
磨を度々行わなければならなかった。また、切れ味不良
となった場合、バリがあるなど品質が劣化した製品にな
る。However, in the conventional cutting blade, the cutting edge of the product often has a poor sharpness such as burrs. Therefore, it has been necessary to frequently polish the cutting blade, which has become less sharp. In addition, when the product becomes poor in sharpness, it becomes a product with deteriorated quality such as burrs.
【０００４】そこで、この原因を調べたところ、以下に
図２に基づいて説明するような原因であろうと考えられ
る。すなわち、被断裁物である感光性平版印刷版などの
金属薄板集積体７を、載置台５の上に載せてバックスト
ッパ３とストッパ２により抑えることにより固定的に保
持した状態で、断裁刃１で金属薄板集積体７を下降させ
て切断する。しかし、従来の断裁刃１では、断裁刃の刃
先面の背面11が粗いため、被断裁物との摩擦抵抗が大き
く、そのため、断裁刃１と被断裁物である感光性平版印
刷版などの金属薄板集積体７との間に大きな摩擦力が発
生し、そのために金属薄板集積体からの金属粉などの凝
着14が発生しているために、製品の切り口に傷74やバリ
75などの切れ味不良が発生し、さらに、一旦、凝着が発
生すると断裁刃の刃先面の背面11が粗いため、除去され
にくいと考えられる。Then, when the cause of this is investigated, it is considered that the cause is explained below with reference to FIG. That is, in the state where the metal thin plate assembly 7 such as the photosensitive lithographic printing plate which is the object to be cut is fixedly held by being placed on the mounting table 5 and held by the back stopper 3 and the stopper 2, the cutting blade 1 Then, the thin metal plate assembly 7 is lowered and cut. However, in the conventional cutting blade 1, since the back surface 11 of the cutting edge surface of the cutting blade is rough, the friction resistance with the object to be cut is large. Therefore, the cutting blade 1 and the metal such as the photosensitive lithographic printing plate which is the object to be cut are large. A large frictional force is generated between the thin plate assembly 7 and the resulting adhesion 14 of metal powder or the like from the thin metal plate assembly.
It is considered that if the cutting edge defect such as 75 occurs and the adhesion occurs once, the back surface 11 of the cutting edge surface of the cutting blade is rough, and thus it is difficult to remove.
【０００５】本発明の目的は、断裁刃の切れ味不良の発
生を低減し、また、断裁刃の切れ味不良による製品品質
の不良の発生を低減することである。An object of the present invention is to reduce the occurrence of poor cutting quality of a cutting blade, and to reduce the occurrence of poor product quality due to poor cutting quality of a cutting blade.
【０００６】[0006]
【課題を解決するための手段】本発明の上記目的は下記
の構成により達成できる。The above object of the present invention can be achieved by the following constitution.
【０００７】〔項１〕『金属支持体上に感光層を形成し
た感光性平版印刷版を複数枚集積し、表面粗さＲａが0.
05以下の刃先面の背面の断裁刃で集積された前記感光性
平版印刷版を断裁することを特徴とする断裁済感光性平
版印刷版の生産方法。』 〔項２〕『金属薄板を複数枚集積し、表面粗さＲａが0.
05以下の刃先面の背面の断裁刃で集積された前記金属薄
板を断裁することを特徴とする断裁済金属薄板集積体の
生産方法。』 本発明は、支持体が金属である感光性平版印刷版に好適
である。感光性平版印刷版の支持体としては、アルミニ
ウム板、亜鉛板、ステンレス板が好ましく、表面酸化処
理などの親水化処理されていることが好ましい。[Claim 1] "A plurality of photosensitive lithographic printing plates having a photosensitive layer formed on a metal support are accumulated, and the surface roughness Ra is less than 0.5.
A method for producing a cut photosensitive lithographic printing plate, which comprises cutting the photosensitive lithographic printing plates accumulated by a cutting blade on the back surface of the cutting edge of 05 or less. [Item 2] "A plurality of thin metal plates are accumulated and the surface roughness Ra is 0.
A production method of a metal thin plate aggregate having been cut, characterized by cutting the metal thin plates accumulated by a cutting blade on the back surface of the cutting edge surface of 05 or less. The present invention is suitable for a photosensitive lithographic printing plate whose support is a metal. The support for the photosensitive lithographic printing plate is preferably an aluminum plate, a zinc plate, or a stainless plate, and is preferably subjected to hydrophilic treatment such as surface oxidation treatment.
【０００８】金属薄板集積体とは、金属薄板を多数枚集
積したものである。そして、金属薄板集積体は、金属薄
板を多数枚集積したものの上下に当ボールなどの当て薄
板を配置したものであってもよいし、また、金属薄板の
間に挟み紙等の挟みシートを配置したものであってもよ
い。また、金属薄板は金属のみからなる薄板であって
も、金属を支持体とする感光性平版印刷版などの薄板で
あってもよい。この金属としては、鋼、ステンレス鋼な
どの硬い金属でもよいが、アルミニウム、亜鉛などの柔
らかい金属に本発明は好適である。The metal thin plate stack is a stack of many metal thin plates. The thin metal plate stack may be a stack of a large number of thin metal plates, and a stacking plate such as a ball may be arranged above and below the metal thin plate, or a sandwiching sheet such as a sandwich paper may be arranged between the thin metal plates. It may be one. Further, the metal thin plate may be a thin plate composed only of metal or a thin plate such as a photosensitive lithographic printing plate having metal as a support. The metal may be a hard metal such as steel or stainless steel, but the present invention is suitable for a soft metal such as aluminum or zinc.
【０００９】金属薄板集積体や集積した感光性平版印刷
版を固定的に保持するには、グリップなどで挟み持つ方
法だけでなく、載置台の上に金属薄板集積体や集積した
感光性平版印刷版を載置し、互いに対向する面からサイ
ドストッパで抑える方法や、ストッパで上から抑える方
法や、バックストッパで断裁刃と対向する面から抑える
方法や、これらの方法の幾つかを組み合わせる方法など
が挙げられる。また、金属薄板集積体や集積した感光性
平版印刷版を切断した後は、金属薄板集積体や集積した
感光性平版印刷版の固定的な保持を解除してから断裁刃
を戻すことが、断裁刃の戻り時に発生する傷や製品の切
り口上側のバリなどの発生を防止することができるので
好ましい。金属薄板集積体や集積した感光性平版印刷版
の固定的な保持を解除することには、これらグリップ、
サイドストッパ、ストッパ、バックストッパを金属薄板
集積体や集積した感光性平版印刷版から離さなくても、
実質的に金属薄板集積体や集積した感光性平版印刷版か
らその断裁刃との間に発生した応力が開放される程度に
保持されていることも含まれる。In order to firmly hold the thin metal plate assembly or the integrated photosensitive lithographic printing plate, not only a method of holding the thin plate assembly by a grip or the like but also the thin metal plate integrated body or the integrated photosensitive lithographic printing plate on a mounting table. Place the plate on it and hold it with the side stoppers from the surfaces that face each other, with the stopper from the top, with the back stopper from the surface that faces the cutting blade, and with a combination of some of these methods. Is mentioned. In addition, after cutting the thin metal plate stack or the integrated photosensitive lithographic printing plate, the fixed holding of the thin metal plate stack or the stacked photosensitive lithographic printing plate may be released, and then the cutting blade may be returned. This is preferable because it is possible to prevent scratches that occur when the blade is returned and burr on the upper side of the cut end of the product. To release the fixed holding of the thin metal plate aggregate or the accumulated photosensitive lithographic printing plate, these grips,
Even if you do not separate the side stopper, stopper, and back stopper from the thin metal plate assembly or the photosensitive lithographic printing plate
It also includes the fact that the stress generated between the metal thin plate aggregate and the accumulated photosensitive lithographic printing plate between the sheet and the cutting blade is substantially released.
【００１０】断裁刃は製品側の面が逃げ面となっている
ことが好ましく、逃げ面の傾斜角度はtanθ≧0.005（特
に、tanθ≧0.010）であることが好ましい。また、断裁
刃は高速度鋼であることが好ましい。また、断裁刃の表
面はバフ研磨、ダイヤモンド微粒子研磨などにより鏡面
仕上げされていることが好ましい。The cutting blade preferably has a flank on the product side, and the inclination angle of the flank is preferably tan θ ≧ 0.005 (particularly tan θ ≧ 0.010). Further, the cutting blade is preferably made of high speed steel. The surface of the cutting blade is preferably mirror-finished by buffing, diamond fine particle polishing, or the like.
【００１１】断裁刃の刃先面の背面の表面粗さＲａが0.
05以下にすることにより、本発明の効果を奏するが、0.
03以下にすることがより好ましい。断裁刃の刃先面の背
面の表面粗さＲａは、断裁に用いる直前の断裁刃の刃先
面の背面に表面粗さ計の触針を直接当てて測定して求め
た中心線平均粗さで、JIS B0601-1976に規定されている
ものである。なお、カットオフ値は0.08mmである。断裁
刃に液または固体を塗る場合は塗る前に測定すればよ
い。The surface roughness Ra of the rear surface of the cutting edge of the cutting blade is 0.
The effect of the present invention is achieved by setting the ratio to 05 or less, but
It is more preferable to set it to 03 or less. The surface roughness Ra of the back surface of the cutting edge surface of the cutting blade is a center line average roughness obtained by directly applying a stylus of a surface roughness meter to the back surface of the cutting edge surface of the cutting blade immediately before used for cutting, It is specified in JIS B 0601-1976. The cutoff value is 0.08 mm. When the liquid or solid is applied to the cutting blade, it may be measured before applying.
【００１２】金属支持体や金属薄板との断裁刃の刃先の
背面の表面粗さＲａが0.05以下にするには、断裁刃の刃
先の背面を鏡面仕上げすればよいが、それに限らない。
断裁刃の刃先の背面を鏡面仕上げするには、バフ研磨が
一般的であるが、ダイヤモンド微粒砥石による研磨など
のその他の方法でもよい。In order to set the surface roughness Ra of the back surface of the cutting edge of the cutting blade to the metal support or the thin metal plate to 0.05 or less, the back surface of the cutting edge of the cutting blade may be mirror-finished, but not limited thereto.
Buffing is generally used for mirror-finishing the back surface of the cutting edge of the cutting blade, but other methods such as polishing with a diamond fine-grained grindstone may be used.
【００１３】断裁刃の刃先の背面にさらに潤滑剤を適用
してもよい。適用される潤滑剤としては、二硫化モリブ
デン、窒化ホウ素、酸化亜鉛などの無機微粉末、ポリフ
ッ化エチレン系樹脂微粉末などの樹脂微粉末、カルナウ
バワックスなどのろう（ワックス）、グリース・シリコ
ンオイルなどの潤滑油、パーフルオロ脂肪酸、パーフル
オロ脂肪酸エステル、パーフルオロアルキル硫酸エステ
ルなどのフッ化物のエステル類、脂肪酸エステル類など
の有機化合物潤滑剤が使用される。これらの中で、潤滑
油が、コストが安く、断裁毎に塗布するのに負荷もな
く、長期間断裁刃の切れ味不良の発生を防止でき、製品
品質の不良の発生も低減できるので好ましい。また、潤
滑油としては、断裁の環境温度において液状のものが好
ましい。A lubricant may be further applied to the back surface of the cutting edge of the cutting blade. Lubricants to be applied include inorganic fine powder such as molybdenum disulfide, boron nitride and zinc oxide, fine resin powder such as fine polyfluorinated ethylene resin powder, wax such as carnauba wax, grease and silicone oil. Lubricating oils such as, perfluoro fatty acids, perfluoro fatty acid esters, fluorides such as perfluoroalkyl sulfates, and organic compound lubricants such as fatty acid esters are used. Of these, lubricating oil is preferable because it is low in cost, has no load to be applied for each cutting, can prevent the occurrence of poor cutting quality of the cutting blade for a long period of time, and can reduce the occurrence of defective product quality. The lubricating oil is preferably liquid at the cutting ambient temperature.
【００１４】[0014]
【実施例】実施例は本発明の具体例の１例を示すもので
あり、本発明を何ら限定するものではない。また、断定
的な記述もあるが、本発明の具体例として好ましいもの
を示すものであり、本発明を何ら限定するものではな
い。例えば、本発明はハロゲン化銀写真フィルムパトロ
ーネ胴板用印刷済チンフリースチールの断裁に用いても
よい。The examples show one example of the specific examples of the present invention, and do not limit the present invention in any way. In addition, although there is a assertive description, it is preferable as a specific example of the present invention and does not limit the present invention. For example, the present invention may be used to cut printed tin-free steel for silver halide photographic film Patrone body.
【００１５】実施例１ 図１は本実施例の断裁装置の概略断面図である。本実施
例の断裁装置は、感光性平版印刷版７を複数枚集積し載
置する載置台５と、複数枚集積した感光性平版印刷版７
を揃えるためのバックストッパ３と、感光性平版印刷版
７を切断するための断裁刃１と、断裁刃１が感光性平版
印刷版７を断裁するときに感光性平版印刷版７を上から
抑えるストッパ２と、を有する。Embodiment 1 FIG. 1 is a schematic sectional view of a cutting apparatus of this embodiment. The cutting apparatus of this embodiment includes a mounting table 5 on which a plurality of photosensitive lithographic printing plates 7 are stacked and mounted, and a plurality of photosensitive lithographic printing plates 7 that are stacked.
A back stopper 3 for aligning, a cutting blade 1 for cutting the photosensitive lithographic printing plate 7, and a photosensitive lithographic printing plate 7 held from above when the cutting blade 1 cuts the photosensitive lithographic printing plate 7. And a stopper 2.
【００１６】載置台５の上面は平面であり、感光性平版
印刷版７を歪みなく水平に保持する。また、載置台５の
断裁刃１が当たる部分には下敷４が設けられており、断
裁刃１が刃こぼれしないようになっている。The upper surface of the mounting table 5 is a flat surface and holds the photosensitive lithographic printing plate 7 horizontally without distortion. Further, an underlay 4 is provided at a portion of the mounting table 5 which is in contact with the cutting blade 1, so that the cutting blade 1 does not spill.
【００１７】断裁刃１の製品71側の逃げ面11は垂直に対
してtanθ＝0.013の逃げ角度を持っている。また、断裁
刃１のロス72側の刃先面12は断裁刃１の製品71側の逃げ
面11に対して30°の角度を有している。断裁刃１は、図
示しない断裁刃駆動装置の台金に着けられており、載置
台５に対して垂直に移動することにより、感光性平版印
刷版７を切断する。また、断裁刃は高速度鋼であり、断
裁刃の表面はバフ研磨により鏡面仕上げされている。The clearance surface 11 of the cutting blade 1 on the product 71 side has a clearance angle of tan θ = 0.013 with respect to the vertical. Further, the cutting edge surface 12 of the cutting blade 1 on the loss 72 side has an angle of 30 ° with respect to the flank surface 11 of the cutting blade 1 on the product 71 side. The cutting blade 1 is attached to a base metal of a cutting blade driving device (not shown), and moves vertically to the mounting table 5 to cut the photosensitive lithographic printing plate 7. The cutting blade is made of high speed steel, and the surface of the cutting blade is mirror-finished by buffing.
【００１８】バックストッパ３はその平滑鉛直面31で感
光性平版印刷版７の断裁面と平行な感光性平版印刷版７
の端面を抑えることにより、複数枚集積した感光性平版
印刷版７を揃える。また、バックストッパ３はその平滑
鉛直面31と垂直な方向に載置台５の上を移動可能であ
る。The back stopper 3 has its smooth vertical surface 31 parallel to the cutting surface of the photosensitive lithographic printing plate 7, and the photosensitive lithographic printing plate 7
The photosensitive lithographic printing plates 7 in which a plurality of sheets are accumulated are aligned by suppressing the end faces of. Further, the back stopper 3 can move on the mounting table 5 in a direction perpendicular to the smooth vertical surface 31.
【００１９】ストッパ２は、平滑な下面21で感光性平版
印刷版７を上から抑える。また、ストッパ２は、弾性部
材であるバネ23を介して上下に移動可能であり、断裁刃
１が感光性平版印刷版７を断裁するときには、感光性平
版印刷版７を上から抑えるようにバネ23により下に抑え
られている。The stopper 2 holds the photosensitive lithographic printing plate 7 from above with its smooth lower surface 21. Further, the stopper 2 is movable up and down via a spring 23 which is an elastic member, and when the cutting blade 1 cuts the photosensitive lithographic printing plate 7, the spring is held so as to hold the photosensitive lithographic printing plate 7 from above. It is held down by 23.
【００２０】なお、感光性平版印刷版７の集積は、感光
性平版印刷版７を集積する前に当ボールを載置台５の上
に載せ、その上に感光性平版印刷版７を１枚毎に挟み紙
を挟みながら揃えて集積し、その上に当ボールを載せる
ことにより行って、集積された感光性平版印刷版７の上
下に、当ボールをあてがう。これにより、その後の工程
で、当ボールごと断裁することにより、当ボールを別に
切断し位置決めして集積された感光性平版印刷版７にあ
てがう手間を省いている。In order to collect the photosensitive lithographic printing plates 7, the balls are placed on the mounting table 5 before the photosensitive lithographic printing plates 7 are stacked, and the photosensitive lithographic printing plates 7 are stacked one by one. The balls are stacked in parallel while sandwiching the sandwich paper, and the balls are placed on the stack, and the balls are applied to the upper and lower sides of the stacked photosensitive lithographic printing plates 7. As a result, in the subsequent step, by cutting the ball together with the ball, it is possible to save the trouble of separately cutting and positioning the ball and applying the photosensitive lithographic printing plate 7 accumulated.
【００２１】なお、ここで、使用される挟み紙は、ポリ
エチレンを浸透させた紙であり、また、当ボールはボー
ル紙であり、また、感光性平版印刷版の集積枚数は25枚
以上100枚以下であることが好ましい。また、感光性平
版印刷版７は厚さは0.2〜0.3mm程度のアルミニウム板を
砂目立てした後、陽極酸化処理し、1.0〜3.0ｇ／m2程度
の酸化皮膜を形成したアルミニウム板に、感光性樹脂層
を塗布により設けたものであることが好ましい。感光性
平版印刷版７のアルミニウム支持体上に設けられた感光
性樹脂層の乾燥後塗布量は1.5〜3.0ｇ／m2程度である。The sandwich paper used here is polyethylene-impregnated paper, the ball is cardboard, and the number of photosensitive lithographic printing plates accumulated is 25 or more and 100 or more. The following is preferable. The photosensitive lithographic printing plate 7 has a thickness of about 0.2 to 0.3 mm, which is grained and then anodized to form an oxide film of about 1.0 to 3.0 g / m 2 on the aluminum plate. The resin layer is preferably provided by coating. The coating amount of the photosensitive resin layer provided on the aluminum support of the photosensitive lithographic printing plate 7 after drying is about 1.5 to 3.0 g / m 2 .
【００２２】実施例２ 上記、実施例１では、ストッパ２は弾性部材であるバネ
23を介して上下に移動可能であり、断裁刃１が感光性平
版印刷版７を断裁するときには、感光性平版印刷版７を
上から抑えるように、ストッパ２は下に抑えられている
が、本実施例では、ストッパ２が油圧シリンダで上下可
能であり、断裁刃１が下りる前に油圧シリンダによりス
トッパ２を下降させることにより、断裁刃１が感光性平
版印刷版７を断裁するときには、感光性平版印刷版７を
上から抑えるように、油圧シリンダでストッパ２を下に
抑えるようにしている。Embodiment 2 In Embodiment 1 described above, the stopper 2 is a spring which is an elastic member.
It is movable up and down through 23, and when the cutting blade 1 cuts the photosensitive lithographic printing plate 7, the stopper 2 is held down so as to hold down the photosensitive lithographic printing plate 7 from above. In this embodiment, the stopper 2 can be moved up and down by a hydraulic cylinder, and the stopper 2 is lowered by the hydraulic cylinder before the cutting blade 1 is lowered so that when the cutting blade 1 cuts the photosensitive lithographic printing plate 7, The stopper 2 is held down by a hydraulic cylinder so that the lithographic printing plate 7 is held down from above.
【００２３】実験 本発明の効果を確認するために以下の加速実験を行っ
た。Experiment In order to confirm the effect of the present invention, the following acceleration experiment was conducted.
【００２４】上記各実施例は感光性平版印刷版の実際の
幅に対応した長さの断裁刃を用いるものであるが、実験
用に10cm程度の長さの断裁刃の装置を作成し、断裁刃の
刃先の背面（逃げ面11）の摩擦係数を求め、各実施例で
挟んでいる感光性平版印刷版７の間の挟み紙を挟まず、
幅７〜８cm程度の感光性平版印刷版７を50枚重ねたもの
を断裁し、断裁刃１の逃げ面11を確認することを連続し
て行い、断裁刃１の切れ味不良の発生が何回の断裁で確
認されるか観察した。この実験を何回か行った。この実
験は挟み紙を挟まない加速実験なので、10回程度まで切
れ味不良の発生が観察されなければ、従来と比べると著
しい改善である。In each of the above examples, a cutting blade having a length corresponding to the actual width of the photosensitive lithographic printing plate is used. However, a cutting blade device having a length of about 10 cm was prepared for the experiment and the cutting blade was cut. The coefficient of friction of the back surface (flanking surface 11) of the blade edge of the blade is determined, and the sandwich paper between the photosensitive lithographic printing plates 7 sandwiched in each example is not sandwiched,
A stack of 50 photosensitive lithographic printing plates 7 having a width of 7 to 8 cm is cut, and the flank 11 of the cutting blade 1 is continuously checked to find out how many times the cutting blade 1 has poor sharpness. I observed if it was confirmed by cutting. This experiment was done several times. Since this experiment is an acceleration experiment in which no sandwich paper is sandwiched, it is a significant improvement compared to the conventional case unless the occurrence of poor sharpness is observed up to about 10 times.
【００２５】ここで比較のために従来のような断裁刃の
刃先面の背面11を鏡面仕上げをしなかった場合でも実験
した。従来のような場合は、１つは表面仕上げ粗さＲａ
が0.14であり、１つは表面仕上げ粗さＲａが0.07であっ
たが、何れも３回程度の断裁で切れ味不良の発生が観察
された。これに対して、実施例１のように断裁刃の刃先
面の背面11を鏡面仕上げした場合、１つは表面仕上げ粗
さＲａが0.03であり、35回程度の断裁まで切れ味不良の
発生が観察されず、１つは表面仕上げ粗さＲａが0.02で
あり、40回程度の断裁まで切れ味不良の発生が観察され
なかった。以下、この結果を下記の表にまとめる。Here, for comparison, an experiment was conducted even when the rear surface 11 of the cutting edge of the conventional cutting blade was not mirror-finished. In the conventional case, one is the surface finish roughness Ra.
Was 0.14, and one had a surface finish roughness Ra of 0.07. However, in each case, occurrence of poor sharpness was observed after cutting about three times. On the other hand, when the back surface 11 of the cutting edge surface of the cutting blade is mirror-finished as in Example 1, one has a surface finish roughness Ra of 0.03, and the occurrence of poor sharpness is observed up to about 35 times of cutting. None, one had a surface finish roughness Ra of 0.02, and no occurrence of poor sharpness was observed until about 40 times of cutting. The results are summarized in the table below.
【００２６】[0026]
【表１】 [Table 1]
【００２７】なお、実施例２でも同様に実験したが、結
果は同様であった。また、切れ味不良が長期にわたり発
生しなければ、断裁刃の切れ味不良による製品品質の低
下の発生が少なくなるだけでなく、切れ味が劣化した断
裁刃を研磨する回数も低減でき、生産性を向上させるこ
とができる。The same experiment was conducted in Example 2, but the result was the same. Further, if the poor cutting quality does not occur for a long period of time, not only the occurrence of the deterioration of the product quality due to the poor cutting quality of the cutting blade is reduced, but also the number of times of polishing the cutting blade with the deteriorated cutting ability can be reduced, and the productivity is improved. be able to.
【００２８】[0028]
【発明の効果】本発明により、断裁刃の切れ味不良の発
生を低減し、また、断裁刃の切れ味不良による製品品質
の低下の発生も低減できる。EFFECTS OF THE INVENTION According to the present invention, it is possible to reduce the occurrence of poor cutting quality of the cutting blade and also to reduce the deterioration of product quality due to the poor cutting performance of the cutting blade.
【図１】断裁装置の概略断面図。FIG. 1 is a schematic sectional view of a cutting device.
【図２】凝着による切れ味不良になった従来の断裁刃と
そのため発生した製品品質の不良を示す図。FIG. 2 is a diagram showing a conventional cutting blade having a poor sharpness due to adhesion and a product quality defect caused thereby.
１ 断裁刃 ２ ストッパ ３ バックストッパ ４ 下敷 ５ 載置台 ７ 感光性平版印刷版 11 断裁刃１の製品71側の逃げ面（刃先面の背面） 12 断裁刃１のロス72側の刃先面 23 バネ 31 バックストッパ３の平滑鉛直面 71 感光性平版印刷版の製品側 72 感光性平版印刷版のロス側 1 Cutting Blade 2 Stopper 3 Back Stopper 4 Underlay 5 Placement Table 7 Photosensitive Lithographic Printing Plate 11 Cutting Face of the Cutting Blade 1 on the Product 71 Side (Rear of the Cutting Edge) 12 Cutting Edge 1 Loss Edge of the 72 Side 23 Spring 31 Smooth vertical surface of back stopper 3 71 Product side of photosensitive lithographic printing plate 72 Loss side of photosensitive lithographic printing plate
Claims (2)
平版印刷版を複数枚集積し、表面粗さＲａが0.05以下の
刃先面の背面の断裁刃で集積された前記感光性平版印刷
版を断裁することを特徴とする断裁済感光性平版印刷版
の生産方法。1. A photosensitive lithographic printing plate in which a plurality of photosensitive lithographic printing plates, each having a photosensitive layer formed on a metal support, are accumulated, and which are accumulated by a cutting blade on the back surface of a cutting edge surface having a surface roughness Ra of 0.05 or less. A method for producing a cut photosensitive lithographic printing plate, which comprises cutting the plate.
が0.05以下の刃先面の背面の断裁刃で、集積された前記
金属薄板を断裁することを特徴とする断裁済金属薄板集
積体の生産方法。2. A plurality of thin metal plates are integrated to have a surface roughness Ra.
Is a 0.05 or less, the cutting blade on the back side of the cutting edge surface is used to cut the accumulated metal thin plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1133095A JPH08197326A (en) | 1995-01-27 | 1995-01-27 | Production of cut photosensitive lithographic printing block and production of cut metallic sheet stack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1133095A JPH08197326A (en) | 1995-01-27 | 1995-01-27 | Production of cut photosensitive lithographic printing block and production of cut metallic sheet stack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08197326A true JPH08197326A (en) | 1996-08-06 |
Family
ID=11775030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1133095A Pending JPH08197326A (en) | 1995-01-27 | 1995-01-27 | Production of cut photosensitive lithographic printing block and production of cut metallic sheet stack |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08197326A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007114488A1 (en) * | 2006-03-31 | 2007-10-11 | Fujifilm Corporation | Cutting method for planographic printing plates |
-
1995
- 1995-01-27 JP JP1133095A patent/JPH08197326A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007114488A1 (en) * | 2006-03-31 | 2007-10-11 | Fujifilm Corporation | Cutting method for planographic printing plates |
| JP2007268687A (en) * | 2006-03-31 | 2007-10-18 | Fujifilm Corp | Cutting method for planographic plate |
| EP2001641A1 (en) * | 2006-03-31 | 2008-12-17 | FUJIFILM Corporation | Cutting method for planographic printing plates |
| EP2001641A4 (en) * | 2006-03-31 | 2012-05-02 | Fujifilm Corp | Cutting method for planographic printing plates |
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