JP3799764B2

JP3799764B2 - Photosensitive lithographic printing plate processing equipment

Info

Publication number: JP3799764B2
Application number: JP22829297A
Authority: JP
Inventors: 剛勝田; 龍司丹野; 新一大谷; 一海月輪
Original assignee: Konica Minolta Inc
Current assignee: Konica Minolta Inc
Priority date: 1997-08-25
Filing date: 1997-08-25
Publication date: 2006-07-19
Anticipated expiration: 2017-08-25
Also published as: JPH1165127A

Description

【０００１】
【発明の属する技術分野】
本発明は、感光性平版印刷版を搬送する搬送手段と、前記搬送手段により搬送されている前記感光性平版印刷版に現像液を供給して現像処理する現像処理槽と、を有する感光性平版印刷版処理装置に関する。
【０００２】
【従来の技術】
近年、感光性平版印刷版の処理時間を短縮することが望まれてきている。そして、感光性平版印刷版を搬送する搬送手段と、前記搬送手段により搬送されている前記感光性平版印刷版に現像液を供給して現像処理する現像処理槽と、を有する感光性平版印刷版処理装置で、搬送速度が１．５ｍ／分程度で、現像処理時間が１５秒程度の現像パス長が０．４ｍ程度のものが知られている。そして、これは、現像処理時間が１５秒程度と短いため、現像温度を上げて現像液の活性を上げて短い現像処理時間でも現像が完了するようにするものである。
【０００３】
【発明が解決しようとする課題】
しかし、より現像処理時間を短くするために、現像液の温度を上げると、現像液からの蒸発が早まり現像液が濃縮され、現像液を貯留する槽などにスラッジが発生しやすくなる。そして、スラッジが発生してしまうと、発生したスラッジが、槽などに固着し急速に固くなったり、感光性平版印刷版に付着して印刷版をダメにしたりするなどの問題が起きる。また、各処理槽に貯留されている処理液、空気酸化により処理液が劣化しやすい。特に現像液は、劣化が急速に進み、現像感度が不安定になり、液寿命が短くなる。そのため、各処理槽を密閉構造にする方法もあるが、処理槽が大きくなりやすく、また、完全に密閉することは困難である。
【０００４】
そこで、現像液の劣化やスラッジの発生を抑制するために、現像液の交換や補充を頻繁に大量に行わなければならない。また、発生したスラッジなどを頻繁に洗浄しなければならない。
【０００５】
第一の発明の目的は、上記課題を解決するもので、現像処理時間の短縮を図りながら、現像液の劣化やスラッジの発生を抑制し、現像液の現像感度の安定化を図り、液寿命を長期化させることである。
【０００６】
第二の発明の目的は、現像液を廃棄することなく、現像処理槽を洗浄することが簡単にでき、また、現像液の交換や補充が簡単にできるようにすることである。
【０００７】
【課題を解決するための手段】
本発明の上記目的は、特許請求の範囲の各請求項に記載の発明を特定するための事項の全てにより達成される。以下、各請求項について説明する。但し引用項の説明と重複する事項は省略することがある。
【００１２】
本発明の感光性平版印刷版処理装置は、感光性平版印刷版を搬送する搬送手段と、前記搬送手段により搬送されている前記感光性平版印刷版に現像液を供給して現像処理して、前記現像液を底部に設けられた現像液用出口から回収する現像処理槽と、前記現像液を貯留する現像液貯留容器と、前記現像液貯留容器から現像液を前記現像処理槽に供給する現像液供給管と、前記現像処理槽の現像液出口から回収された現像液を前記現像液貯留容器に送ることと排出することとを選択できる現像液回収管と、を有することを特徴とする。
本発明の作用は以下の通りである。感光性平版印刷版を現像処理している間は、現像液貯留容器に貯留されている現像液を現像液供給管から現像処理槽に供給して、現像処理槽が、前記搬送手段により搬送されている前記感光性平版印刷版に現像液を供給して現像処理して、前記現像液を回収して、現像液回収管が前記現像処理槽で回収された現像液を前記現像液貯留容器に送ることで、感光性平版印刷版を現像処理することができる。また、現像処理槽の洗浄時は、現像液の大部分が現像液貯留容器に貯留されている状態で、現像液回収管が前記現像処理槽で回収された現像液や洗浄液を排出するようにすることで、洗浄のために汚れた現像液や洗浄液を排出することができ、簡単に現像処理槽を洗浄でき、かつ、現像液の大部分が現像液貯留容器に貯留されているので、大部分の現像液を再度利用することができる。また、現像液の交換は、現像液貯留容器ごと交換したり、現像液貯留容器から交換したりなどすることで、簡単にできる。また、現像液の補充は、現像液貯留容器に補充したり、現像液回収管が現像処理槽で補充された現像液を前記現像液貯留容器に送ったりするなどで、簡単にできる。また、現像液が、感光性平版印刷版の搬送路に開かれている現像処理槽ではなく、現像液貯留容器に貯留されているので、現像液貯留容器の開口を小さくすることで、現像液の蒸発を少なくでき、また、酸化による現像液の劣化を抑制でき、地震などで他の槽に現像液が混ざり込むことを防止できる。また、現像処理槽とは別に現像液貯留容器が設けられているので、現像処理槽と現像液貯留容器とは、その配置や構造に自由度が高く、省スペース化を図ることができる。
【００１３】
なお、前記現像液回収管が、当該現像液回収管の途中に、前記現像処理槽で回収された現像液を前記現像液貯留容器に送ることと排出することとを選択するコックを有することが、簡単な構造であるので好ましい。
【００１６】
また、本発明の感光性平版印刷版処理装置は、前記搬送手段により搬送されている前記感光性平版印刷版に水洗水を供給して水洗処理して、前記水洗液を回収する水洗処理槽と、前記水洗水を貯留する水洗水貯留容器と、前記水洗水貯留容器から水洗水を前記水洗処理槽に供給する水洗水供給管と、前記水洗処理槽で回収された水洗水を前記水洗水貯留容器に送ることと排出することとを選択できる水洗水回収管と、を有することを特徴とする。
【００１７】
また、本発明の感光性平版印刷版処理装置は、前記搬送手段により搬送されている前記感光性平版印刷版に後処理液を供給して後処理して、前記後処理液を回収する後処理槽と、前記後処理液を貯留する後処理液貯留容器と、前記後処理液貯留容器から後処理液を前記後処理槽に供給する後処理液供給管と、前記後処理槽で回収された後処理液を前記後処理液貯留容器に送ることと排出することとを選択できる後処理液回収管と、を有することを特徴とする。
【００２４】
〔用語などの説明〕
後処理とは、現像処理され、水洗処理された感光性平版印刷版にさらにする処理のことで、ガム引き処理、リンス処理などが挙げられる。後処理液とは、後処理のための処理液のことで、例えば、ガム引き処理ではガム液、リンス処理ではリンス液が該当する。
【００２５】
現像時間とは、感光性平版印刷版に、現像液が最初に接触してから、次の処理液が最初に接触するまでの時間のことで、例えば、現像処理の後に水洗処理する場合は、感光性平版印刷版に、現像液が最初に接触してから、水洗水が最初に接触するまでの時間のことである。
【００２６】
現像パス長とは、搬送手段により搬送されている感光性平版印刷版に、現像液が最初に接触してから、次の処理液が最初に接触するまでの距離のことで、例えば、現像処理の後に水洗処理する場合は、搬送手段により搬送されている感光性平版印刷版に、現像液が最初に接触してから、水洗水が最初に接触するまでの距離のことである。
【００２７】
現像液の活性は、現像液の温度を上げることや、現像液の成分を活性な成分にすることや、現像液のｐＨを調整することなどにより、上げることができる。
【００２８】
【発明の実施の形態】
以下に本発明に関する具体例の一例を実施形態として示すが、本発明はこれらに限定されない。また、実施形態には、用語等に対する断定的な表現があるが、本発明の好ましい例を示すもので、本発明の用語の意義や技術的範囲を限定するものではない。
【００２９】
実施形態１
本実施形態の感光性平版印刷版処理装置は、感光性平版印刷版を現像処理する処理装置である。以下、本実施形態の感光性平版印刷版処理装置について、本実施形態の感光性平版印刷版処理装置の概略構成図である図１に基づいて、説明する。
【００３０】
本実施形態の感光性平版印刷版処理装置には、現像処理槽２０と水洗処理槽３０と後処理槽４０とを収容する外枠６０が設けられている。そして、外枠６０は、直方体の天面がない形状の枠であり、この直方体の天面に該当する蓋５０と共に内部を実質的に密閉するものである。そして、感光性平版印刷版処理装置の外枠６０には、搬送手段により所定の搬送路１９に沿って搬送されている感光性平版印刷版の搬送を邪魔しないように、感光性平版印刷版の入口６８及び出口６９が設けられている。また、外枠６０の内側を現像処理槽２０と水洗処理槽３０と後処理槽４０とに区切るために、区画壁６２と区画壁６３とが設けられている。そして、外枠６０の内壁６１と区画壁６２とにより現像処理槽２０が区画され、区画壁６２と区画壁６３とにより水洗処理槽３０が区画され、区画壁６３と外枠６０の内壁６４とにより後処理槽４０が区画されている。
【００３１】
そして、搬送ローラ対１１〜１４が現像処理槽２０内に感光性平版印刷版の所定の搬送路１９に沿って設けられている。また、搬送ローラ対１５、１６が水洗処理槽３０内に感光性平版印刷版の所定の搬送路１９に沿って設けられている。また、搬送ローラ対１７、１８が後処理槽４０内に感光性平版印刷版の所定の搬送路１９に沿って設けられている。そして、区画壁６２の上方の搬送ローラ対１４、１５が、現像液と水洗水とを区画している。また、区画壁６３の上方の搬送ローラ対１６、１７が、水洗水と後処理液とを区画している。そして、搬送ローラ対１１〜１８は、感光性平版印刷版を搬送する搬送手段であり、感光性平版印刷版を、所定の搬送路１９に沿って、一定の搬送速度で搬送する。
【００３２】
現像処理槽２０は、その内部に、搬送ローラ対１１〜１４により搬送されている感光性平版印刷版に現像液を供給する現像液供給ノズル２１が、搬送ローラ対１１〜１３の各々の下流側に、設けられている。そして、現像液供給用ポンプ２５が、現像処理槽２０に貯留している現像液を、すり鉢状の底の最低部に設けられた現像液用出口２６から、途中にこの現像液供給用ポンプ２５を設けた現像液供給管２４を介して、現像液供給ノズル２１に供給する。そして、現像処理槽２０は、この現像液供給ノズル２１により感光性平版印刷版に現像液を供給して現像処理し、そして、落下した現像液を貯留する。
【００３３】
また、水洗処理槽３０は、その内部に、搬送ローラ対１５、１６により搬送されている感光性平版印刷版に水洗水を供給する水洗水供給ノズル３１が、搬送ローラ対１５の下流側に設けられている。そして、水洗水供給用ポンプ３５が、水洗処理槽３０に貯留している水洗水を、すり鉢状の底の最低部に設けられた水洗水用出口３６から、途中にこの水洗水供給用ポンプ３５を設けた水洗水供給管３４を介して、水洗水供給ノズル３１に供給する。そして、水洗処理槽３０は、この水洗水供給ノズル３１により感光性平版印刷版に水洗水を供給して水洗処理し、そして、落下した水洗水を貯留する。
【００３４】
また、後処理槽４０は、その内部に、搬送ローラ対１７、１８により搬送されている感光性平版印刷版に後処理液を供給する後処理液供給ノズル４１が搬送ローラ対１７の下流側に設けられている。そして、後処理液供給用ポンプ４５が、後処理槽４０に貯留している後処理液を、すり鉢状の底の最低部に設けられた後処理液用出口４６から、途中にこの後処理液供給用ポンプ４５を設けた後処理液供給管４４を介して、後処理液供給ノズル４１に供給する。そして、後処理槽４０は、この後処理液供給ノズル４１により感光性平版印刷版に後処理液を供給して後処理し、そして、落下した後処理液を貯留する。
【００３５】
また、外枠６０の上部を囲むようにパッキング６５が設けられており、このパッキング６５を介して取り外し自在な蓋５０が乗せられ、この蓋５０と外枠６０とにより、現像処理槽２０と水洗処理槽３０と後処理槽４０とを、感光性平版印刷版の入口６８及び出口６９と、現像液用出口２６と、水洗水用出口３６と、後処理液用出口４６とを除いて、蓋５０と共に内部を密閉する、すなわち、外部から実質的に密閉する。
【００３６】
また、搬送ローラ対１１〜１８からなる搬送手段による感光性平版印刷版の搬送速度は２．５ｍ／分以上５ｍ／分以下であり、感光性平版印刷版の現像時間が１１秒以下５秒以上であり、感光性平版印刷版の現像パス長が１ｍ以下０．２ｍ以上であり、現像液の活性を上げても、現像液を貯留する現像処理槽が外部から密閉されているので、現像液の蒸発や現像液の劣化やスラッジの発生が抑制され、現像液の交換や補充の頻度や量を少なくすることができつつ、現像処理槽２０を小型化できる。また、現像液を貯留する現像処理槽２０と水洗水を貯留する水洗処理槽３０と後処理液を貯留する後処理槽４０とが、外部から実質的に密閉されているので、現像液と水洗水と後処理液の蒸発や劣化やスラッジの発生が抑制され、現像液と水洗水と後処理液の交換や補充の頻度や量を少なくすることができる。また、単に蓋を開くだけで、簡単に現像処理槽２０と水洗処理槽３０と後処理槽４０とを洗浄したり、簡単に現像液と水洗水と後処理液の交換や補充をしたりすることができる。
【００３７】
実施形態２
本実施形態の感光性平版印刷版処理装置は、感光性平版印刷版を現像処理する処理装置である。以下、本実施形態の感光性平版印刷版処理装置について、本実施形態の感光性平版印刷版処理装置の概略構成図である図２に基づいて、説明する。
【００３８】
本実施形態の感光性平版印刷版処理装置には現像処理槽２０と水洗処理槽３０と後処理槽４０とを収容する外枠６０が設けられている。そして、外枠６０は、直方体の天面がない形状の枠であり、この直方体の天面に該当する蓋５０と共に内部を実質的に密閉するものである。そして、感光性平版印刷版処理装置の外枠６０には、搬送手段により所定の搬送路１９に沿って搬送されている感光性平版印刷版の搬送を邪魔しないように、感光性平版印刷版の入口６８及び出口６９が設けられている。また、外枠６０の内側を現像処理槽２０と水洗処理槽３０と後処理槽４０とに区切るために、区画壁６２と区画壁６３とが設けられている。そして、外枠６０の内壁６１と区画壁６２とにより現像処理槽２０が区画され、区画壁６２と区画壁６３とにより水洗処理槽３０が区画され、区画壁６３と外枠６０の内壁６４とにより後処理槽４０が区画されている。
【００３９】
そして、搬送ローラ対１１〜１４が現像処理槽２０内に感光性平版印刷版の所定の搬送路１９に沿って設けられている。また、搬送ローラ対１５、１６が水洗処理槽３０内に感光性平版印刷版の所定の搬送路１９に沿って設けられている。また、搬送ローラ対１７、１８が後処理槽４０内に感光性平版印刷版の所定の搬送路１９に沿って設けられている。そして、区画壁６２の上方の搬送ローラ対１４、１５が、現像液と水洗水とを区画している。また、区画壁６３の上方の搬送ローラ対１６、１７が、水洗水と後処理液とを区画している。そして、搬送ローラ対１１〜１８は、感光性平版印刷版を搬送する搬送手段であり、感光性平版印刷版を、所定の搬送路１９に沿って、一定の搬送速度で搬送する。
【００４０】
また、本実施形態の感光性平版印刷版処理装置には、現像液を貯留する現像液貯留容器２２と、水洗水を貯留する水洗水貯留容器３２と、後処理液を貯留する後処理液貯留容器４２とを収容する貯留容器外枠７０が設けられている。そして、外枠７０は、直方体の天面がない形状の枠であり、この直方体の天面に該当する蓋８０と共に内部を実質的に密閉するものである。そして、貯留容器外枠７０には、現像液を貯留する現像液貯留容器２２と、水洗水を貯留する水洗水貯留容器３２と、後処理液を貯留する後処理液貯留容器４２とに区切るために、区画壁７２と区画壁７３とが設けられている。そして、外枠７０の内壁７１と区画壁７２とにより現像液貯留容器２２が区画され、区画壁７２と区画壁７３とにより水洗水貯留容器３２が区画され、区画壁７３と外枠７０の内壁７４とにより後処理液貯留容器４２が区画されている。
【００４１】
また、現像処理槽２０は、その内部に、搬送ローラ対１１〜１４により搬送されている感光性平版印刷版に現像液を供給する現像液供給ノズル２１が、搬送ローラ対１１〜１３の各々の下流側に、設けられている。そして、現像液供給用ポンプ２５が、現像液貯留容器２２に貯留している現像液を、現像液貯留容器２２の底に設けられた現像液貯留容器出口２３から、途中にこの現像液供給用ポンプ２５を設けた現像液供給管２４を介して、現像液供給ノズル２１に供給する。
【００４２】
そして、現像処理槽２０は、この現像液供給ノズル２１により感光性平版印刷版に現像液を供給して現像処理し、そして、落下した現像液をすり鉢状の底により回収する。現像処理槽２０のすり鉢状の底に現像液用出口２６が設けられている。そして、現像液用出口２６から現像液貯留容器２２の現像液貯留容器入口２９まで、途中に切り替えコック２７が設けられた回収管２８が設けられている。そして、現像処理槽２０のすり鉢状の底から回収された現像液は、現像液用出口２６から途中に切り替えコック２７が設けられた回収管２８を介して、現像液貯留容器入口２９より現像液貯留容器２２に戻す。
【００４３】
なお、切り替えコック２７は、簡単な構造のもので、現像処理槽２０で回収された現像液を、現像液貯留容器２２に送ることと排出することとを選択するものである。そして、現像処理時には、切り替えコック２７を、現像処理槽２０で回収された現像液を現像液貯留容器２２に送るように切り替えることで、現像液を循環させながら、感光性平版印刷版を連続的に現像処理する。
【００４４】
また、現像処理槽２０の洗浄時は、現像処理槽２０に在った現像液を全て現像液貯留容器２２に送った後、切り替えコック２７を、回収管２８が現像処理槽で回収された現像液や洗浄液を排出するように切り替えることで、洗浄のために汚れた現像液や洗浄液を排出することができ、簡単に現像処理槽を洗浄でき、また、洗浄のために現像液を廃棄する必要がなく、洗浄中の現像液の劣化も良好に抑制できる。
【００４５】
また、現像液の交換時は、現像液貯留容器２２ごと交換したり、現像液貯留容器２２から交換したりなどすることで、簡単にできる。
【００４６】
また、現像液の補充は、現像液貯留容器２２に補充したり、切り替えコック２７が、現像処理槽２０で回収された現像液を現像液貯留容器２２に送るように切り替えることで、回収管２８が現像処理槽２０で補充された現像液を現像液貯留容器２２に送ったりするなどで、簡単にできる。
【００４７】
また、現像液は実質的に密閉されている開口の小さい現像液貯留容器２２に貯留されているので、現像液の蒸発を少なくでき、酸化による現像液の劣化を防止でき、地震などで他の槽に現像液が混ざり込むことを防止できる。
【００４８】
また、水洗処理槽３０は、その内部に、搬送ローラ対１４、１５により搬送されている感光性平版印刷版に水洗水を供給する水洗水供給ノズル３１が、搬送ローラ対１４の下流側に設けられている。そして、水洗水供給用ポンプ３５が、水洗水貯留容器３２に貯留している水洗水を、水洗水貯留容器３２の底に設けられた水洗水貯留容器出口３３から、途中にこの水洗水供給用ポンプ３５を設けられた水洗水供給管３４を介して、水洗水供給ノズル３１に供給する。
【００４９】
そして、水洗処理槽３０は、この水洗水供給ノズル３１により感光性平版印刷版に水洗水を供給して水洗処理し、そして、落下した水洗水をすり鉢状の底により回収する。水洗処理槽３０のすり鉢状の底に水洗水用出口３６が設けられている。そして、水洗水用出口３６から水洗水貯留容器３２の水洗水貯留容器入口３９まで、途中に切り替えコック３７が設けられた回収管３８が設けられている。そして、水洗処理槽３０のすり鉢状の底から回収された水洗水は、水洗水用出口３６から途中に切り替えコック３７が設けられた回収管３８を介して、水洗水貯留容器入口３９より水洗水貯留容器３２に戻す。
【００５０】
なお、切り替えコック３７は、簡単な構造のもので、水洗処理槽３０で回収された水洗水を、水洗水貯留容器３２に送ることと排出することとを選択するものである。そして、水洗処理時には、切り替えコック３７を、水洗処理槽３０で回収された水洗水を水洗水貯留容器３２に送るように切り替えることで、水洗水を循環させながら、感光性平版印刷版を連続的に水洗処理する。
【００５１】
また、水洗処理槽３０の洗浄時は、水洗処理槽３０に在った水洗水を全て水洗水貯留容器３２に送った後、切り替えコック３７を、回収管３８が水洗処理槽で回収された水洗水や洗浄液を排出するように切り替えることで、洗浄のために汚れた水洗水や洗浄液を排出することができ、簡単に水洗処理槽を洗浄でき、また、水洗水を廃棄する必要なく、洗浄中の水洗水の劣化も良好に抑制できる。
【００５２】
また、水洗水の交換時は、水洗水貯留容器３２ごと交換したり、水洗水貯留容器３２から交換したりなどすることで、簡単にできる。
【００５３】
また、水洗水の補充は、水洗水貯留容器３２に補充したり、切り替えコック３７が、水洗処理槽３０で回収された水洗水を水洗水貯留容器３２に送るように切り替えることで、回収管３８が水洗処理槽３０で補充された水洗水を水洗水貯留容器３２に送ったりするなどで、簡単にできる。
【００５４】
また、水洗水は実質的に密閉されている開口の小さい水洗水貯留容器３２に貯留されているので、水洗水の蒸発を少なくでき、地震などで他の槽に水洗水が混ざり込むことを防止できる。
【００５５】
また、後処理槽４０は、その内部に、搬送ローラ対１５、１６により搬送されている感光性平版印刷版に後処理液を供給する後処理液供給ノズル４１が搬送ローラ対１５の下流側に設けられている。そして、後処理液供給用ポンプ４５が、後処理液貯留容器４２に貯留している後処理液を、後処理液貯留容器４２の底に設けられた後処理液用出口４６から、途中にこの後処理液供給用ポンプ４５を設けられた後処理液供給管４４を介して、後処理液供給ノズル４１に供給する。
【００５６】
そして、後処理槽４０は、この後処理液供給ノズル４１により感光性平版印刷版に後処理液を供給して後処理し、そして、落下した後処理液をすり鉢状の底により回収する。後処理槽４０のすり鉢状の底に後処理液用出口４６が設けられている。そして、後処理液用出口４６から後処理液貯留容器４２の後処理液貯留容器入口４９まで、途中に切り替えコック４７が設けられた回収管４８が設けられている。そして、後処理槽４０のすり鉢状の底から回収された後処理液は、後処理液用出口４６から途中に切り替えコック４７が設けられた回収管４８を介して、後処理液貯留容器入口４９より後処理液貯留容器４２に戻す。
【００５７】
なお、切り替えコック４７は、簡単な構造のもので、後処理槽４０で回収された後処理液を、後処理液貯留容器４２に送ることと排出することとを選択するものである。そして、後処理時には、切り替えコック４７を、後処理槽４０で回収された後処理液を後処理液貯留容器４２に送るように切り替えることで、後処理液を循環させながら、感光性平版印刷版を連続的に後処理する。
【００５８】
また、後処理槽４０の洗浄時は、後処理槽４０に在った後処理液を全て後処理液貯留容器４２に送った後、切り替えコック４７を、回収管４８が後処理槽で回収された後処理液や洗浄液を排出するように切り替えることで、洗浄のために汚れた後処理液や洗浄液を排出することができ、簡単に後処理槽を洗浄でき、また、後処理液を廃棄する必要がなく、洗浄時の後処理液の劣化も良好に抑制できる。
【００５９】
また、後処理液の交換時は、後処理液貯留容器４２ごと交換したり、後処理液貯留容器４２から交換したりなどすることで、簡単にできる。
【００６０】
また、後処理液の補充は、後処理液貯留容器４２に補充したり、切り替えコック４７が、後処理槽４０で回収された後処理液を後処理液貯留容器４２に送るように切り替えることで、回収管４８が後処理槽４０で補充された後処理液を後処理液貯留容器４２に送ったりするなどで、簡単にできる。
【００６１】
また、後処理液は実質的に密閉されている開口の小さい後処理液貯留容器４２に貯留されているので、後処理液の蒸発を少なくでき、地震などで他の槽に後処理液が混ざり込むことを防止できる。
【００６２】
また、貯留容器外枠７０及び区画壁７２、７３の上部にはパッキング７５が設けられており、このパッキング７５を介して取り外し自在な蓋８０が乗せられ、この蓋８０と外枠７０とにより、現像処理槽２０と後処理槽３０と後処理槽４０とを、現像液貯留容器入口２９及び現像液貯留容器出口２３と、水洗水用入口３９及び水洗水用出口３６と、後処理液用入口４９及び後処理液用出口４６とを除いて、蓋５０と共に内部を密閉する、すなわち、外部から実質的に密閉する。
【００６３】
そして、各処理の際、感光性平版印刷版に供給された各処理液は各処理槽に留まることなく回収され、各処理液の貯留容器に送られるので、劣化しにくい。
【００６４】
また、外枠６０の上部を囲むようにパッキング６５が設けられており、このパッキング６５を介して取り外し自在な蓋５０が乗せられ、この蓋５０と外枠６０とにより、現像処理槽２０と水洗処理槽３０と後処理槽４０とを、感光性平版印刷版の入口６８及び出口６９と、現像液用出口２６と、水洗水用出口３６と、後処理液用出口４６とを除いて、蓋５０と共に内部を密閉する、すなわち、外部から実質的に密閉する。
【００６５】
また、現像処理槽２０と水洗処理槽３０と後処理槽４０との外枠６０と、貯留容器外枠７０とが、それぞれ別なので、その配置、構造に自由度が高く、省スペース化を図ることができる。
【００６６】
また、搬送ローラ対１１〜１６からなる搬送手段による感光性平版印刷版の搬送速度は２．５ｍ／分以上５ｍ／分以下であり、感光性平版印刷版の現像時間が１１秒以下５秒以上であり、感光性平版印刷版の現像パス長が１ｍ以下０．２ｍ以上であり、現像液の活性を上げても、現像液を貯留する現像液貯留容器２２が外部から密閉されているので、現像液の蒸発や現像液の劣化やスラッジの発生が抑制され、現像液の交換や補充の頻度や量を少なくすることができつつ、現像処理槽２０を小型化できる。また、現像液を貯留する現像液貯留容器２２と水洗水を貯留する水洗水貯留容器３２と後処理液を貯留する後処理液貯留容器４２とが、外部から実質的に密閉されているので、現像液と水洗水と後処理液の蒸発や劣化やスラッジの発生が抑制され、現像液と水洗水と後処理液の交換や補充の頻度や量を少なくすることができる。また、単に蓋を開くだけで、簡単に現像処理槽２０と水洗処理槽３０と後処理槽４０とを洗浄したり、簡単に現像液と水洗水と後処理液の交換や補充をしたりすることができる。
【００６７】
【実施例】
実施例１
実施形態１の感光性平版印刷版処理装置で、感光性平版印刷版の搬送速度２．８ｍ／分にし、現像パス長を０．４６ｍにし、現像時間を約９．９秒にして、現像液と水洗水と後処理液の交換や補充を従来と同様にして、感光性平版印刷版を連続的に処理した。
【００６８】
その結果、現像液と水洗水と後処理液の蒸発、劣化及びスラッジの発生を良好に抑制でき、良好な処理ができた。
【００６９】
実施例２
実施形態２の感光性平版印刷版処理装置で、感光性平版印刷版の搬送速度２．８ｍ／分にし、現像パス長を０．４６ｍにし、現像時間を約９．９秒にして、現像液と水洗水と後処理液の交換や補充を従来と同様にして、感光性平版印刷版を連続的に処理した。
【００７０】
その結果、現像液と水洗水と後処理液の蒸発、劣化及びスラッジの発生を良好に抑制でき、良好な処理ができた。
【００７１】
【発明の効果】
第一の発明の効果は、現像液の蒸発や劣化やスラッジの発生を抑制することである。
【００７２】
第二の発明の効果は、現像液を廃棄することなく、現像処理槽を洗浄することが簡単にでき、また、現像液の交換や補充が簡単にできることである。
【図面の簡単な説明】
【図１】実施形態１の感光性平版印刷版処理装置を示す概略構成図。
【図２】実施形態２の感光性平版印刷版処理装置を示す概略構成図。
【符号の説明】
１１〜１８搬送ローラ対
１９搬送路
２０現像処理槽
３０水洗処理槽
４０後処理槽
５０蓋
６０外枠
６５パッキング
７０貯留容器外枠
７５パッキング
８０蓋[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a photosensitive lithographic plate comprising a conveying means for conveying a photosensitive lithographic printing plate, and a development processing tank for supplying a developing solution to the photosensitive lithographic printing plate conveyed by the conveying means for development processing. The present invention relates to a printing plate processing apparatus.
[0002]
[Prior art]
In recent years, it has been desired to shorten the processing time of photosensitive lithographic printing plates. And the photosensitive lithographic printing plate which has a conveyance means which conveys a photosensitive lithographic printing plate, and a development processing tank which supplies a developing solution to the said photosensitive lithographic printing plate conveyed by the said conveyance means, and develops it. A processing apparatus having a conveyance speed of about 1.5 m / min, a development processing time of about 15 seconds, and a development path length of about 0.4 m is known. Since the development processing time is as short as about 15 seconds, the development temperature is raised to increase the activity of the developer so that the development can be completed even in a short development processing time.
[0003]
[Problems to be solved by the invention]
However, if the temperature of the developer is raised to further shorten the development processing time, evaporation from the developer is accelerated, the developer is concentrated, and sludge is likely to be generated in a tank for storing the developer. When sludge is generated, the generated sludge adheres to a tank and hardens rapidly, or problems such as adhering to the photosensitive lithographic printing plate and damaging the printing plate occur. Further, the treatment liquid stored in each treatment tank and the treatment liquid are likely to deteriorate due to air oxidation. In particular, the developer rapidly deteriorates, the development sensitivity becomes unstable, and the life of the solution is shortened. For this reason, there is a method in which each processing tank is sealed, but the processing tank tends to be large and it is difficult to completely seal the processing tank.
[0004]
Therefore, in order to suppress the deterioration of the developer and the generation of sludge, the developer must be frequently replaced and replenished in large quantities. Also, the generated sludge must be washed frequently.
[0005]
The object of the first invention is to solve the above-mentioned problems, while reducing the development processing time, suppressing the deterioration of the developing solution and the generation of sludge, stabilizing the developing sensitivity of the developing solution, and the life of the solution. Is to prolong.
[0006]
An object of the second invention is to make it possible to easily clean the development processing tank without discarding the developer, and to easily replace or replenish the developer.
[0007]
[Means for Solving the Problems]
The above-described object of the present invention can be achieved by all the matters for specifying the invention described in each claim. Each claim will be described below. However, items that overlap with the explanation in the cited paragraph may be omitted.
[0012]
  The photosensitive lithographic printing plate processing apparatus of the present invention comprises a conveying means for conveying the photosensitive lithographic printing plate, and a developing process for supplying a developer to the photosensitive lithographic printing plate conveyed by the conveying means, The developerFrom the developer outlet at the bottomDevelopment processing tank to collect,in frontA developer storage container that stores the developer, a developer supply pipe that supplies the developer from the developer storage container to the development processing tank, and the development processing tankFrom the developer outletAnd a developer recovery pipe capable of selecting whether the recovered developer is sent to the developer storage container or discharged.
  The operation of the present invention is as follows. While developing the photosensitive lithographic printing plate, the developer stored in the developer storage container is supplied from the developer supply pipe to the development processing tank, and the development processing tank is transported by the transport means. A developer is supplied to the photosensitive lithographic printing plate for development processing, the developer is collected, and a developer recovery tube collects the developer collected in the development tank into the developer storage container. By feeding, the photosensitive lithographic printing plate can be developed. Further, at the time of cleaning the development processing tank, the developer recovery pipe discharges the developer and cleaning liquid collected in the development processing tank in a state where most of the developer is stored in the developer storage container. As a result, the dirty developer and cleaning solution can be discharged for cleaning, the developing tank can be easily cleaned, and most of the developer is stored in the developer storage container. Part of the developer can be reused. Further, the developer can be easily exchanged by exchanging the whole developer storage container or from the developer storage container. Further, the replenishment of the developer can be easily performed by replenishing the developer storage container, or the developer recovery tube replenishing the developer replenished in the development processing tank to the developer storage container. Further, since the developer is stored in the developer storage container, not in the development processing tank opened in the photosensitive lithographic printing plate conveyance path, the developer can be reduced by reducing the opening of the developer storage container. The evaporation of the developer can be reduced, the deterioration of the developer due to oxidation can be suppressed, and the developer can be prevented from being mixed into another tank due to an earthquake or the like. In addition, since the developer storage container is provided separately from the development processing tank, the development processing tank and the developer storage container have a high degree of freedom in arrangement and structure, and space saving can be achieved.
[0013]
  In addition, the aboveDeveloperThe collection tubeDeveloperIn the middle of the collection tube, it is preferable to have a cock for selecting whether the developer collected in the developing tank is to be sent to the developer storage container or discharged.
[0016]
  Moreover, the photosensitive lithographic printing plate processing apparatus of the present invention comprises:A washing water tank for supplying washing water to the photosensitive lithographic printing plate conveyed by the conveying means to perform washing treatment, and collecting the washing liquid, a washing water storage container for storing the washing water, A flush water supply pipe for supplying flush water from the flush water storage container to the flush treatment tank, and flush water that can be selected to send or discharge the flush water collected in the flush treatment tank to the flush water storage container A collection tube;It is characterized by having.
[0017]
  Further, the photosensitive lithographic printing plate processing apparatus of the present invention is a post-processing for supplying a post-treatment liquid to the photosensitive lithographic printing plate transported by the transport means and performing post-processing, and collecting the post-processing liquid. Recovered in a tank, a post-processing liquid storage container that stores the post-processing liquid, a post-processing liquid supply pipe that supplies the post-processing liquid from the post-processing liquid storage container to the post-processing tank, and the post-processing tank And a post-treatment liquid recovery pipe capable of selecting whether to send or discharge the post-treatment liquid to the post-treatment liquid storage container.
[0024]
[Explanation of terms, etc.]
Post-processing refers to processing that further develops a photosensitive lithographic printing plate that has been developed and washed with water, and includes gumming and rinsing. The post-treatment liquid is a treatment liquid for the post-treatment, and, for example, a gum liquid in the gumming process and a rinse liquid in the rinse process.
[0025]
The development time is the time from when the developer first comes into contact with the photosensitive lithographic printing plate until the next treatment liquid comes into contact with the first, for example, when washing with water after the development process, This is the time from when the developer first comes into contact with the photosensitive lithographic printing plate to when the washing water first comes into contact.
[0026]
The development path length is the distance from the first contact of the developer to the photosensitive lithographic printing plate transported by the transport means until the next processing solution first contacts. In the case where the washing treatment is performed after this, it is the distance from the first contact of the developer to the photosensitive lithographic printing plate conveyed by the conveying means to the first contact of the washing water.
[0027]
The activity of the developer can be increased by increasing the temperature of the developer, making the components of the developer active, adjusting the pH of the developer, or the like.
[0028]
DETAILED DESCRIPTION OF THE INVENTION
Although an example of the specific example regarding this invention is shown as embodiment below, this invention is not limited to these. Moreover, although there are assertive expressions for terms and the like in the embodiments, they show preferred examples of the present invention and do not limit the meaning and technical scope of the terms of the present invention.
[0029]
Embodiment 1
The photosensitive lithographic printing plate processing apparatus of this embodiment is a processing apparatus for developing a photosensitive lithographic printing plate. Hereinafter, the photosensitive lithographic printing plate processing apparatus of the present embodiment will be described with reference to FIG. 1 which is a schematic configuration diagram of the photosensitive lithographic printing plate processing apparatus of the present embodiment.
[0030]
The photosensitive lithographic printing plate processing apparatus of the present embodiment is provided with an outer frame 60 that accommodates the development processing tank 20, the rinsing processing tank 30, and the post-processing tank 40. The outer frame 60 is a frame having no cuboid top surface, and substantially seals the inside together with the lid 50 corresponding to the cuboid top surface. The outer surface 60 of the photosensitive lithographic printing plate processing apparatus is provided with a photosensitive lithographic printing plate so as not to obstruct the conveyance of the photosensitive lithographic printing plate conveyed along the predetermined conveying path 19 by the conveying means. An inlet 68 and an outlet 69 are provided. A partition wall 62 and a partition wall 63 are provided to divide the inner side of the outer frame 60 into the development processing tank 20, the washing processing tank 30, and the post-processing tank 40. The development tank 20 is partitioned by the inner wall 61 and the partition wall 62 of the outer frame 60, and the water washing tank 30 is partitioned by the partition wall 62 and the partition wall 63, and the partition wall 63 and the inner wall 64 of the outer frame 60 are separated from each other. The post-processing tank 40 is divided by.
[0031]
And the conveyance roller pair 11-14 is provided in the developing tank 20 along the predetermined conveyance path 19 of the photosensitive lithographic printing plate. Further, a pair of conveying rollers 15 and 16 are provided in the washing treatment tank 30 along a predetermined conveying path 19 of the photosensitive lithographic printing plate. Further, a pair of transport rollers 17 and 18 are provided in the post-processing tank 40 along a predetermined transport path 19 of the photosensitive lithographic printing plate. The pair of conveyance rollers 14 and 15 above the partition wall 62 partitions the developer and the washing water. Moreover, the conveyance roller pairs 16 and 17 above the partition wall 63 partition the washing water and the post-treatment liquid. The transport roller pairs 11 to 18 are transport means for transporting the photosensitive lithographic printing plate, and transport the photosensitive lithographic printing plate along a predetermined transport path 19 at a constant transport speed.
[0032]
A developing solution supply nozzle 21 for supplying a developing solution to the photosensitive lithographic printing plate conveyed by the conveying roller pairs 11 to 14 is provided in the developing processing tank 20 at the downstream side of each of the conveying roller pairs 11 to 13. Is provided. Then, the developer supply pump 25 removes the developer stored in the development processing tank 20 from the developer outlet 26 provided at the lowest part of the bottom of the mortar shape. Is supplied to the developer supply nozzle 21 through the developer supply pipe 24 provided with The developing tank 20 supplies the developing solution to the photosensitive lithographic printing plate by the developing solution supply nozzle 21 for developing, and stores the dropped developing solution.
[0033]
Further, the washing treatment tank 30 is provided with a washing water supply nozzle 31 for supplying washing water to the photosensitive lithographic printing plate conveyed by the conveying roller pairs 15 and 16 on the downstream side of the conveying roller pair 15. It has been. Then, the flush water supply pump 35 supplies flush water stored in the flush treatment tank 30 from the flush water outlet 36 provided in the lowest part of the bottom of the mortar to the flush water supply pump 35. Is supplied to the flush water supply nozzle 31 through the flush water supply pipe 34 provided with The washing tank 30 supplies washing water to the photosensitive lithographic printing plate by the washing water supply nozzle 31 for washing treatment, and stores the falling washing water.
[0034]
The post-treatment tank 40 has a post-treatment liquid supply nozzle 41 for supplying a post-treatment liquid to the photosensitive lithographic printing plate conveyed by the conveyance roller pairs 17 and 18 on the downstream side of the conveyance roller pair 17. Is provided. Then, the post-treatment liquid supply pump 45 supplies the post-treatment liquid stored in the post-treatment tank 40 from the post-treatment liquid outlet 46 provided at the lowest part of the mortar-shaped bottom halfway. It supplies to the post-processing liquid supply nozzle 41 via the post-processing liquid supply pipe 44 provided with the supply pump 45. The post-treatment tank 40 supplies the post-treatment liquid to the photosensitive lithographic printing plate by the post-treatment liquid supply nozzle 41 for post-treatment, and stores the dropped post-treatment liquid.
[0035]
A packing 65 is provided so as to surround the upper part of the outer frame 60, and a removable lid 50 is placed through the packing 65. The development tank 20 and the water washing are washed by the lid 50 and the outer frame 60. The processing tank 30 and the post-processing tank 40 except for the photosensitive lithographic printing plate inlet 68 and outlet 69, the developer outlet 26, the washing water outlet 36, and the post-processing liquid outlet 46 are covered. 50 is sealed with the inside, i.e. substantially sealed from the outside.
[0036]
Further, the conveying speed of the photosensitive lithographic printing plate by the conveying means comprising the conveying roller pairs 11 to 18 is 2.5 m / min or more and 5 m / min or less, and the developing time of the photosensitive lithographic printing plate is 11 seconds or less and 5 seconds or more. The development path length of the photosensitive lithographic printing plate is 1 m or less and 0.2 m or more, and even if the activity of the developer is increased, the development processing tank for storing the developer is sealed from the outside. The development tank 20 can be downsized while the frequency and amount of developer replacement and replenishment can be reduced while the evaporation of the developer, the deterioration of the developer and the generation of sludge are suppressed. Further, since the developing treatment tank 20 for storing the developer, the washing treatment tank 30 for storing the washing water, and the post-treatment tank 40 for storing the post-treatment liquid are substantially sealed from the outside, the developing solution and the washing water are washed. Evaporation and deterioration of water and post-treatment liquid and generation of sludge are suppressed, and the frequency and amount of replacement, replenishment and replenishment of developer, washing water and post-treatment liquid can be reduced. Further, the developing tank 20, the washing tank 30, and the post-treatment tank 40 can be easily washed by simply opening the lid, or the developer, the washing water, and the post-treatment liquid can be easily replaced or replenished. be able to.
[0037]
Embodiment 2
The photosensitive lithographic printing plate processing apparatus of this embodiment is a processing apparatus for developing a photosensitive lithographic printing plate. Hereinafter, the photosensitive lithographic printing plate processing apparatus of the present embodiment will be described with reference to FIG. 2 which is a schematic configuration diagram of the photosensitive lithographic printing plate processing apparatus of the present embodiment.
[0038]
The photosensitive lithographic printing plate processing apparatus of the present embodiment is provided with an outer frame 60 that houses the development processing tank 20, the washing processing tank 30, and the post-processing tank 40. The outer frame 60 is a frame having no cuboid top surface, and substantially seals the inside together with the lid 50 corresponding to the cuboid top surface. The outer surface 60 of the photosensitive lithographic printing plate processing apparatus is provided with a photosensitive lithographic printing plate so as not to obstruct the conveyance of the photosensitive lithographic printing plate conveyed along the predetermined conveying path 19 by the conveying means. An inlet 68 and an outlet 69 are provided. A partition wall 62 and a partition wall 63 are provided to divide the inner side of the outer frame 60 into the development processing tank 20, the washing processing tank 30, and the post-processing tank 40. The development tank 20 is partitioned by the inner wall 61 and the partition wall 62 of the outer frame 60, and the water washing tank 30 is partitioned by the partition wall 62 and the partition wall 63, and the partition wall 63 and the inner wall 64 of the outer frame 60 are separated from each other. The post-processing tank 40 is divided by.
[0039]
And the conveyance roller pair 11-14 is provided in the developing tank 20 along the predetermined conveyance path 19 of the photosensitive lithographic printing plate. Further, a pair of conveying rollers 15 and 16 are provided in the washing treatment tank 30 along a predetermined conveying path 19 of the photosensitive lithographic printing plate. Further, a pair of transport rollers 17 and 18 are provided in the post-processing tank 40 along a predetermined transport path 19 of the photosensitive lithographic printing plate. The pair of conveyance rollers 14 and 15 above the partition wall 62 partitions the developer and the washing water. Moreover, the conveyance roller pairs 16 and 17 above the partition wall 63 partition the washing water and the post-treatment liquid. The transport roller pairs 11 to 18 are transport means for transporting the photosensitive lithographic printing plate, and transport the photosensitive lithographic printing plate along a predetermined transport path 19 at a constant transport speed.
[0040]
Further, in the photosensitive lithographic printing plate processing apparatus of the present embodiment, a developer storage container 22 that stores developer, a rinsing water storage container 32 that stores rinsing water, and a post-processing liquid storage that stores post-processing liquid. A storage container outer frame 70 that accommodates the container 42 is provided. The outer frame 70 is a frame that does not have a rectangular parallelepiped top surface, and substantially seals the inside together with a lid 80 corresponding to the top surface of the rectangular parallelepiped. The storage container outer frame 70 is divided into a developer storage container 22 that stores the developer, a flush water storage container 32 that stores the flush water, and a post-treatment liquid storage container 42 that stores the post-treatment liquid. In addition, a partition wall 72 and a partition wall 73 are provided. The developer storage container 22 is partitioned by the inner wall 71 and the partition wall 72 of the outer frame 70, and the flush water storage container 32 is partitioned by the partition wall 72 and the partition wall 73, and the partition wall 73 and the inner wall of the outer frame 70 are separated. 74, the post-processing liquid storage container 42 is partitioned.
[0041]
The developing tank 20 includes a developer supply nozzle 21 for supplying a developer to the photosensitive lithographic printing plate transported by the transport roller pairs 11 to 14. It is provided on the downstream side. Then, the developer supply pump 25 supplies the developer stored in the developer storage container 22 from the developer storage container outlet 23 provided at the bottom of the developer storage container 22 on the way. The developer is supplied to the developer supply nozzle 21 through the developer supply pipe 24 provided with the pump 25.
[0042]
Then, the developing tank 20 supplies the developing solution to the photosensitive lithographic printing plate by the developing solution supply nozzle 21 to perform the developing process, and collects the dropped developing solution from the mortar-shaped bottom. A developer outlet 26 is provided in the mortar-shaped bottom of the development processing tank 20. A recovery pipe 28 provided with a switching cock 27 is provided on the way from the developer outlet 26 to the developer storage container inlet 29 of the developer storage container 22. Then, the developer recovered from the mortar-shaped bottom of the developing tank 20 is supplied from the developer storage container inlet 29 via a recovery pipe 28 provided with a switching cock 27 on the way from the developer outlet 26. Return to storage container 22.
[0043]
The switching cock 27 has a simple structure, and selects whether the developer collected in the developing tank 20 is sent to the developer storage container 22 or discharged. At the time of the development processing, the switching cock 27 is switched so that the developer collected in the development tank 20 is sent to the developer storage container 22, so that the photosensitive lithographic printing plate is continuously fed while circulating the developer. To develop.
[0044]
Further, when the developing tank 20 is washed, after all the developing solution in the developing tank 20 is sent to the developing solution storage container 22, the switching cock 27 is connected to the developing tube 28 and the developing tube 28 collects the developing tube 28. By switching to discharge the solution and cleaning solution, it is possible to discharge the dirty developer and cleaning solution for cleaning, and it is possible to easily wash the development processing tank, and it is necessary to discard the developer for cleaning And the deterioration of the developing solution during washing can be satisfactorily suppressed.
[0045]
Further, when changing the developer, it is possible to easily replace the developer storage container 22 or the developer storage container 22.
[0046]
Further, replenishment of the developing solution is performed by replenishing the developing solution storage container 22 or by switching the switching cock 27 so that the developing solution collected in the developing treatment tank 20 is sent to the developing solution storage container 22. However, it is possible to simplify the process by sending the developer replenished in the developing tank 20 to the developer storage container 22.
[0047]
Further, since the developer is stored in the developer storage container 22 having a small opening which is substantially sealed, the evaporation of the developer can be reduced and the deterioration of the developer due to oxidation can be prevented. It is possible to prevent the developer from being mixed into the tank.
[0048]
Further, the washing treatment tank 30 is provided with a washing water supply nozzle 31 for supplying washing water to the photosensitive lithographic printing plate conveyed by the conveyance roller pair 14, 15 on the downstream side of the conveyance roller pair 14. It has been. The flush water supply pump 35 supplies the flush water stored in the flush water storage container 32 from the flush water storage container outlet 33 provided at the bottom of the flush water storage container 32 on the way. The water is supplied to the flush water supply nozzle 31 via the flush water supply pipe 34 provided with the pump 35.
[0049]
The washing tank 30 supplies washing water to the photosensitive lithographic printing plate by the washing water supply nozzle 31 to perform washing treatment, and collects the falling washing water from the mortar-shaped bottom. A flush water outlet 36 is provided in the mortar-shaped bottom of the flush treatment tank 30. A recovery pipe 38 provided with a switching cock 37 is provided on the way from the flush water outlet 36 to the flush water storage container inlet 39 of the flush water storage container 32. Then, the washing water collected from the bottom of the mortar shape of the washing treatment tank 30 is washed with water from the washing water storage container inlet 39 via a collection pipe 38 provided with a switching cock 37 on the way from the washing water outlet 36. Return to storage container 32.
[0050]
Note that the switching cock 37 has a simple structure, and selects whether the flush water collected in the flush treatment tank 30 is sent to the flush water storage container 32 or discharged. During the washing process, the switching cock 37 is switched so that the washing water collected in the washing treatment tank 30 is sent to the washing water storage container 32, so that the photosensitive lithographic printing plate is continuously fed while circulating the washing water. Wash with water.
[0051]
Further, when washing the washing tank 30, after all the washing water in the washing tank 30 is sent to the washing water storage container 32, the switching cock 37 is washed with the recovery pipe 38 collected in the washing tank. By switching to discharge water and cleaning liquid, it is possible to discharge dirty washing water and cleaning liquid for cleaning, easily wash the water washing treatment tank, and it is not necessary to discard the washing water while washing It is possible to satisfactorily suppress deterioration of the washing water.
[0052]
In addition, the flush water can be easily replaced by replacing the flush water storage container 32 or the flush water storage container 32.
[0053]
In addition, replenishment of the flush water is performed by replenishing the flush water storage container 32 or by switching the switching cock 37 so that the flush water collected in the flush treatment tank 30 is sent to the flush water storage container 32. However, the washing water replenished in the washing treatment tank 30 can be simply sent to the washing water storage container 32 or the like.
[0054]
In addition, since the flush water is stored in the flush water storage container 32 having a small opening which is substantially sealed, evaporation of the flush water can be reduced, and the flush water is prevented from being mixed into other tanks due to an earthquake or the like. it can.
[0055]
The post-treatment tank 40 has a post-treatment liquid supply nozzle 41 for supplying a post-treatment liquid to the photosensitive lithographic printing plate conveyed by the conveyance roller pairs 15 and 16 on the downstream side of the conveyance roller pair 15. Is provided. Then, the post-processing liquid supply pump 45 transfers the post-processing liquid stored in the post-processing liquid storage container 42 from the post-processing liquid outlet 46 provided at the bottom of the post-processing liquid storage container 42 on the way. A post-treatment liquid supply pipe 44 provided with a post-treatment liquid supply pump 45 is supplied to the post-treatment liquid supply nozzle 41.
[0056]
The post-processing tank 40 supplies post-processing liquid to the photosensitive lithographic printing plate by the post-processing liquid supply nozzle 41 to perform post-processing, and collects the dropped post-processing liquid from the mortar-shaped bottom. A post-treatment liquid outlet 46 is provided in the mortar-shaped bottom of the post-treatment tank 40. A recovery pipe 48 provided with a switching cock 47 is provided midway from the post-processing liquid outlet 46 to the post-processing liquid storage container inlet 49 of the post-processing liquid storage container 42. The post-treatment liquid recovered from the mortar-shaped bottom of the post-treatment tank 40 passes through a recovery pipe 48 provided with a switching cock 47 halfway from the post-treatment liquid outlet 46, and then enters the post-treatment liquid storage container inlet 49. It returns to the post-processing liquid storage container 42 more.
[0057]
Note that the switching cock 47 has a simple structure, and selects whether the post-processing liquid collected in the post-processing tank 40 is sent to the post-processing liquid storage container 42 or discharged. At the time of post-processing, the switching cock 47 is switched so that the post-processing liquid collected in the post-processing tank 40 is sent to the post-processing liquid storage container 42, whereby the photosensitive lithographic printing plate is circulated while circulating the post-processing liquid. Are continuously post-processed.
[0058]
When the post-treatment tank 40 is cleaned, all the post-treatment liquid in the post-treatment tank 40 is sent to the post-treatment liquid storage container 42, and then the switching cock 47 is collected in the post-treatment tank. By switching to discharge the post-treatment liquid and cleaning liquid, it is possible to discharge the dirty post-processing liquid and cleaning liquid for cleaning, easily clean the post-treatment tank, and discard the post-treatment liquid There is no need, and deterioration of the post-treatment liquid during cleaning can be satisfactorily suppressed.
[0059]
Further, the replacement of the post-processing liquid can be easily performed by replacing the post-processing liquid storage container 42 or the post-processing liquid storage container 42.
[0060]
Further, the replenishment of the post-processing liquid is performed by replenishing the post-processing liquid storage container 42 or switching the switching cock 47 so that the post-processing liquid collected in the post-processing tank 40 is sent to the post-processing liquid storage container 42. The recovery pipe 48 can be simplified by sending the post-processing liquid replenished in the post-processing tank 40 to the post-processing liquid storage container 42.
[0061]
Further, since the post-treatment liquid is stored in the post-treatment liquid storage container 42 having a substantially sealed opening and small opening, the evaporation of the post-treatment liquid can be reduced, and the post-treatment liquid is mixed in another tank due to an earthquake or the like. Can be prevented.
[0062]
In addition, a packing 75 is provided on the upper part of the storage container outer frame 70 and the partition walls 72 and 73, and a removable lid 80 is placed through the packing 75. With the lid 80 and the outer frame 70, The development tank 20, the post-treatment tank 30, and the post-treatment tank 40 are divided into a developer storage container inlet 29, a developer storage container outlet 23, a flush water inlet 39, a flush water outlet 36, and a post-treatment liquid inlet. The inside is sealed with the lid 50 except for 49 and the post-treatment liquid outlet 46, that is, substantially sealed from the outside.
[0063]
And in each process, since each process liquid supplied to the photosensitive lithographic printing plate is collect | recovered without staying in each process tank, and sent to the storage container of each process liquid, it is hard to deteriorate.
[0064]
A packing 65 is provided so as to surround the upper part of the outer frame 60, and a removable lid 50 is placed through the packing 65. The development tank 20 and the water washing are washed by the lid 50 and the outer frame 60. The processing tank 30 and the post-processing tank 40 except for the photosensitive lithographic printing plate inlet 68 and outlet 69, the developer outlet 26, the washing water outlet 36, and the post-processing liquid outlet 46 are covered. 50 is sealed with the inside, i.e. substantially sealed from the outside.
[0065]
Further, since the outer frame 60 of the development processing tank 20, the water washing processing tank 30, and the post-processing tank 40 and the storage container outer frame 70 are different from each other, the arrangement and structure are highly flexible and space saving is achieved. be able to.
[0066]
Further, the conveying speed of the photosensitive lithographic printing plate by the conveying means comprising the conveying roller pairs 11 to 16 is 2.5 m / min or more and 5 m / min or less, and the developing time of the photosensitive lithographic printing plate is 11 seconds or less and 5 seconds or more. The development path length of the photosensitive lithographic printing plate is 1 m or less and 0.2 m or more, and even if the activity of the developer is increased, the developer storage container 22 for storing the developer is sealed from the outside. The evaporation of the developing solution, the deterioration of the developing solution, and the generation of sludge are suppressed, and the frequency and amount of the replacement and replenishment of the developing solution can be reduced, and the development processing tank 20 can be downsized. Further, since the developer storage container 22 that stores the developer, the flush water storage container 32 that stores the rinse water, and the post-treatment liquid storage container 42 that stores the post-treatment liquid are substantially sealed from the outside. Evaporation and deterioration of the developer, washing water, and post-treatment liquid and generation of sludge are suppressed, and the frequency and amount of replacement, replenishment, and replenishment of the developer, washing water, and post-treatment liquid can be reduced. In addition, the developing tank 20, the washing tank 30, and the post-treatment tank 40 can be easily washed by simply opening the lid, or the developer, washing water, and post-treatment liquid can be easily replaced or replenished. be able to.
[0067]
【Example】
Example 1
In the photosensitive lithographic printing plate processing apparatus of Embodiment 1, the photosensitive lithographic printing plate transport speed is 2.8 m / min, the development path length is 0.46 m, the development time is about 9.9 seconds, and the developer The photosensitive lithographic printing plate was continuously processed in the same manner as before by replacing and replenishing water, washing water and post-treatment liquid.
[0068]
As a result, it was possible to satisfactorily suppress the evaporation, deterioration, and sludge generation of the developer, the washing water and the post-treatment liquid, and good processing was possible.
[0069]
Example 2
In the photosensitive lithographic printing plate processing apparatus of Embodiment 2, the photosensitive lithographic printing plate transport speed is 2.8 m / min, the development path length is 0.46 m, the development time is about 9.9 seconds, and the developer The photosensitive lithographic printing plate was continuously processed in the same manner as before by replacing and replenishing water, washing water and post-treatment liquid.
[0070]
As a result, it was possible to satisfactorily suppress the evaporation, deterioration, and sludge generation of the developer, the washing water and the post-treatment liquid, and good processing was possible.
[0071]
【The invention's effect】
The effect of the first invention is to suppress the evaporation and deterioration of the developer and the generation of sludge.
[0072]
The effect of the second invention is that the developing tank can be easily cleaned without discarding the developer, and the developer can be easily replaced or replenished.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing a photosensitive lithographic printing plate processing apparatus according to a first embodiment.
FIG. 2 is a schematic configuration diagram illustrating a photosensitive lithographic printing plate processing apparatus according to a second embodiment.
[Explanation of symbols]
11-18 Pair of transport rollers
19 Transport path
20 Development tank
30 Water washing tank
40 Aftertreatment tank
50 lids
60 outer frame
65 packing
70 Storage container outer frame
75 packing
80 lids

Claims

Conveying means for conveying the photosensitive lithographic printing plate;
A developing tank for supplying a developing solution to the photosensitive lithographic printing plate transported by the transporting means and performing a developing process, and recovering the developing solution from a developer outlet provided at the bottom ;
A developing liquid storage container for storing the previous Symbol developer,
A developer supply pipe for supplying the developer from the developer storage container to the development processing tank;
A developer recovery pipe capable of selecting whether the developer recovered from the developer outlet of the developer processing tank is sent to the developer storage container or discharged;
A photosensitive lithographic printing plate processing apparatus comprising:

At the time of cleaning the development tank, the developer recovery pipe is selected to be sent to the developer storage container, and the developer in the development tank is sent to the developer storage container, and then the developer recovery pipe The photosensitive lithographic printing plate processing apparatus according to claim 1, wherein the photosensitive lithographic printing plate processing apparatus is selected so as to be discharged .

The replenishment of the developer is performed by selecting the developer recovery tube to be sent to the developer storage container and sending the developer replenished to the development processing tank to the developer storage container. Item 2. The photosensitive lithographic printing plate processing apparatus according to Item 1 .

A rinsing treatment tank for collecting rinsing liquid by supplying rinsing water to the photosensitive lithographic printing plate being conveyed by the conveying means ,
A flush water storage container for storing the flush water;
A flush water supply pipe for supplying flush water from the flush water storage container to the flush treatment tank;
A flush water recovery pipe capable of selecting whether to send flush water collected in the flush treatment tank to the flush water storage container and to discharge it,
A photosensitive lithographic printing plate processing apparatus comprising:

At the time of washing the washing treatment tank, the washing water recovery pipe is selected to be sent to the washing water storage container and the washing water in the washing treatment tank is sent to the washing water storage container, and then the washing water collection pipe The photosensitive lithographic printing plate processing apparatus according to claim 4, wherein the photosensitive lithographic printing plate processing apparatus is selected so as to be discharged .

The replenishment of the flush water is performed by selecting the flush water recovery pipe to be sent to the flush water storage container and sending the flush water supplemented to the flush treatment tank to the flush water storage container. Item 5. The photosensitive lithographic printing plate processing apparatus according to Item 4 .

A post-treatment tank for supplying a post-treatment liquid to the photosensitive lithographic printing plate being conveyed by the conveyance means and performing post-treatment, and collecting the post-treatment liquid;
A post-treatment liquid storage container for storing the post-treatment liquid;
A post-treatment liquid supply pipe for supplying a post-treatment liquid from the post-treatment liquid reservoir to the post-treatment tank;
A post-treatment liquid recovery pipe capable of selecting between sending and discharging the post-treatment liquid recovered in the post-treatment tank to the post-treatment liquid storage container; and
A photosensitive lithographic printing plate processing apparatus comprising:

At the time of cleaning the post-treatment tank, the post-treatment liquid recovery tube is selected to be sent to the post-treatment liquid storage container, and after the post-treatment liquid is sent to the post-treatment liquid storage container, 8. The photosensitive lithographic printing plate processing apparatus according to claim 7, wherein the post-processing liquid recovery pipe is selected to be discharged .

When refilling the post-treatment liquid, the post-treatment liquid collection tube is selected to be sent to the post-treatment liquid storage container, and the post-treatment liquid replenished to the post-treatment tank is sent to the post-treatment liquid storage container The photosensitive lithographic printing plate processing apparatus according to claim 7 .