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TWI268872B - Damping solution circulator and damping solution circulating method - Google Patents

Damping solution circulator and damping solution circulating method Download PDF

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Publication number
TWI268872B
TWI268872B TW92100895A TW92100895A TWI268872B TW I268872 B TWI268872 B TW I268872B TW 92100895 A TW92100895 A TW 92100895A TW 92100895 A TW92100895 A TW 92100895A TW I268872 B TWI268872 B TW I268872B
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Taiwan
Prior art keywords
dampening solution
damping solution
dampening
solution
potential
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TW92100895A
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Chinese (zh)
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TW200302173A (en
Inventor
Seiichi Mizuno
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S T Engineering Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F7/00Rotary lithographic machines
    • B41F7/20Details
    • B41F7/24Damping devices
    • B41F7/32Ducts, containers, or like supply devices for liquids
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/50Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Rotary Presses (AREA)
  • Filtering Materials (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The object of the present invention is to provide a damping solution circulator and a damping solution circulating method in which damping solution is not contaminated nor putrefied even after continuous use and necessity of replacement is eliminated by preventing generation offensive odor. The damping solution circulator (1) comprises a potential adsorption filter (2) utilizing the absorbing action of zeta potential provided in the middle of a passage for circulating the damping solution, and a concentration controller (3) for regulating concentration of the damping solution by replenishing the damping solution with IPA. Since propagation of bacteria or microorganisms contained in the damping solution can be prevented by adsorbing and removing particulate components suspending in the damping solution and then setting the alcohol concentration of the damping solution at 5 mass% or above, the damping solution is not polluted nor putrefied and generation of offensive odor can be prevented.

Description

1268872 (1) 玖、發明說明 【發明所屬之技術領域】 本發明,係關於一種循環處理使用在平版印刷的 '潤版 藥水之潤版藥水循環處理裝置以及潤版藥水循環處理方 法。 【先前技術】 在於平版印刷中,要執行高品質的印刷潤版藥水的管 理係屬非常重要。在印刷中,紙粉、粉塵、油或粉末等的 不純物會混入潤版藥水內。如此,爲了淨化含有不純物的 潤版藥水,連接潤版藥水循環裝置到印刷設備的水箱。潤 版藥水循環裝置,係以一定的流量且一定的溫度來安定地 供應預定之各成份濃度的淸淨潤版藥水到印刷設備的水箱 的緣故,回收通過水箱的潤版藥水予以過濾後,再生成新 鮮的潤版藥水來供應到水箱。 同時,最近的平版輪轉式印刷機,大多數是使用連續 式的潤版藥水循環裝置,爲了能夠使水位的上升安定,使 用有機溶劑的異丙醇(IP A)。藉由添加IPA到潤版藥水, 可以降低潤版藥水的表面張力,且以少量的潤版藥水可以 均勻地潤濕非劃線部。換言之,利用IP A,可以使版面的 潤濕性良好,及維持印刷品質。 但是,在於上述傳統的潤版藥水循環裝置的情形下, 其過濾器裝置係使用海綿狀過濾器等的多孔性濾材,利用 通過過濾器的空隙層後物理方式地過濾去除從水箱流回來 -5- (2) (2)1268872 的潤版藥水的污物。因此,不純物的去除能力會取決在過 濾器的孔徑大小,即使使用小孔徑的過濾器也只能去除 2 5 /z m左右的不純物。 如果減小過濾器的孔徑來提高去除不純物的能力,壓 力會被加到通過空隙層的潤版藥水,形成無法利甩所定的 流量循環潤版藥水。當無法利用所定的流量循環潤版藥水 時,潤版藥水便無法發揮功能,進而導致印刷品質降低。 換句話說,傳統的潤版藥水循環裝置,依據過濾能力 的極限來循環潤版藥水大約2至3個月時,潤版藥水的特 性會因爲潤版藥水污濁與腐敗而改變導致無法再使用。同 時,由於空氣中的細菌侵入潤版藥水,若連續使用時會發 出惡臭。因此,即使使用上述傳統的潤版藥水循環裝置來 再生潤版藥水,實際上仍然需要經常更換潤版藥水。 因此,在本發明,提供一種即使連續使用潤版藥水也 不會使其變混濁或腐敗,同時又可以防止發生惡臭之不需 更換潤版藥水之潤版藥水循環處理裝置以及潤版藥水循環 處理方法。 【發明內容】 本發明的潤版藥水循環處理裝置,係屬於循環並且淨 化處理使用在平版印刷的潤版藥水之潤版藥水循環處理裝 置,且在於循環潤版藥水的循環路的途中具備利用ζ電位 的吸著作用之電位吸著過濾器裝置,潤版藥水中以含質量 5 %以上的酒精爲其特徵。 (3) (3)1268872 同時,本發明的潤版藥水循環處理方法,係屬於循環 並且淨化處理使用在平版印刷的潤版藥水之潤版藥水循環 處理方法,且在於利用ζ電位的吸著作用過濾潤版藥水的 同時,藉由追加酒精到潤版藥水來維持酒精濃度在質量 5 %以上爲其特徵。 本發明,係利用電位吸著過濾器裝置的正ζ電位的吸 著作用來吸著並去除含在潤版藥水中的墨水、紙粉、粉 塵、油或粉末等通常顯示負電位的微粒子成份,形成可以 防止潤版藥水的污濁。根據這種電位吸著作用,不需使用 如傳統的多孔性濾材的過濾器一樣做小孔徑也可以去除直 徑〇 . 4至1 〇 // m左右的微粒子成份的緣故,不需加壓到潤 版藥水造成妨礙到該循環。 同時,在本發明,係可以完全去除這些微粒子的同 時,也利用質量5 %以上的濃度的酒精防止含在潤版藥水 中的細菌或微生物等的繁殖的緣故,潤版藥水不會腐敗, 又可以防止惡臭的發生。同時,經過長期間使用也不會混 濁的緣故,不需廢棄便可以再生利用,形成可以抑制潤版 藥水的運轉成本。同時,藉由使用這種被精製過的潤版藥 水來進行平版印刷,又可以提升印刷的品質。 在此,將加到潤版藥水的酒精作爲IPA或乙醇時,潤 版藥水的表面張力會降低,且可以用少量的潤版藥水均勻 潤濕非畫線部的緣故,可以安定潤版藥水的水位上升。 同時,潤版藥水的酒精濃度設定爲質量1 0%以上會較 理想。只要質量1 〇 %以上,如前述一般,可以儘可能地防 (4) (4)1268872 止含在潤版藥水中的細菌或微生物等的繁殖,形成能夠殺 死潤版藥水的細菌,進而防止潤版藥水的腐敗或惡臭的發 生。 【實施方式】 第1圖,係本發明的實施形態之潤版藥水循環處理裝 置的系統圖。 , 本發明的實施形態之潤版藥水循環處理裝置1,係從 導入口 8a(上流側)導入使用在平版輪轉印刷機的潤版藥水 後,藉由從導出口 8b(下流側)導出來循環循環路9a、 9b、9c、9d。在循環路 9a、9b之間、循環路9b、9c之 間、及循環路9c、9d之間,分別配設強制循環潤版藥水 的泵浦裝置4、利用ζ電位的吸著作用的電位吸著過濾器 裝置2、以及藉由補充ΙΡΑ到潤版藥水來調整其濃度的濃 度控制裝置3。 進一步,潤版藥水循環處理裝置1,係具備比電位吸 著過濾器裝置2以及濃度控制裝置3還要外側,換言之, 具備作爲檢知導入口 8a側與導出口 8b的循環路9b、9d 間的差壓後發出檢知信號的差壓檢知裝置的差壓發信機 5 ;及因應此一差壓發信機5的檢知信號的檢知程度來發 出警報的警報裝置之旋轉燈6。 第2圖,係收容在第1圖所示的電位吸著過濾器裝置 2的殼體內的電位吸著管匣的一部份切口立體圖。 電位吸著過濾器裝置2,係爲了能夠更換電位吸著過 -8- (5) 1268872 濾器而在殼體內收容電位吸著管匣2〇。電位吸著管匣 2 0 ’係主要一邊夾持由樹脂、纖維素所構成的介質2 1、 聚丙烯製分離器22以及封端23所形成的電池(cell);聚 丙烯製封環2 4 —邊利用聚丙烯製芯2 5予以組立。 一般而言,在於異相接觸的界面產生電位差後,在於 產生在粒子界面的電氣二重層所形成的電位中,分別有不 扮演動態角色的部份(固定層)、及扮演動態角色的部份 (擴散層)。在於異相間,只有在相對運動的情形下,發生 在該界面的電氣現象稱爲界面動電現象,而存在於該處的 電位稱爲界面動電或ζ電位。ζ電位,係與廷德爾 (Tyndali)現象或布朗運動相同,屬於由微粒子的特性所形 成的物理現象,一般而言,液體中的微粒子或微生物等, 係顯不負電位。 含在潤版藥水中的墨水、紙粉或油等的微粒子也是表 示負電位,與之相對應,電位吸著過濾器裝置2內的介質 2 1,係擁有正的ζ電位特性的緣故,能夠吸著並去除一般 膜過濾器無法去除的這些的微粒子。同時,這種電位吸著 作用’係不需加壓到通過電位吸著過濾器裝置2的潤版藥 水就可以去除微粒子成份。 此外,在於本實施形態中的潤版藥水循環處理裝置 1,利用差壓發信機5檢知循環路9b、9d間的差壓,且當 此一差壓超過2.2 kg / cm 2時,會點亮旋轉燈6且發出警 報。電位吸著過濾器裝置2內的介質2 1,係當該電位吸 著力達到臨界點時差壓會突然上升的緣故,藉由檢知此_ -9- (7) ' (7) '1268872 故,形成不需加壓到通過電位吸著過濾器裝置2的潤版藥 水也能夠去除微粒子成份。進一步,經由循環路9 c來導 入到濃度控制裝置3內的潤版藥水,係該酒精濃度被調整 到質量在5%以上後,再經由循環路9d以及連結路l〇b回 到水箱1 2內。 如此在於本實施形態的潤版藥水循環處理裝置1,除 了吸著並去除混雜在潤版藥水的微粒子成份,並且將潤版 藥水的酒精濃度設定在質量爲5%以上形成可以防止含在 潤版藥水中的細菌或微生物等的繁殖的緣故,潤版藥水不 會變混濁或腐敗,進而可以防止惡臭的發生。同時,若將 潤版藥水的酒精濃度設定在質量爲1 〇%以上的話,形成能 夠殺死潤版藥水中的細菌,進而能夠防止潤版藥水的腐敗 或惡臭發生。 因此,本實施形態的潤版藥水循環處理裝置1所處理 過的潤版藥水,係在經過長期間的使用也不會混濁的緣 故,形成不需當作廢棄物處理而予以回收再利用。其結 果,不會發生潤版藥水的廢液,也不必委託外包處理廢液 的緣故,形成可以抑制使用在平版印刷的潤版藥水的運轉 成本。同時,藉由使用這種被精製過的潤版藥水來處理平 版印刷,可以提高印刷品質。 [產業上的利用可能性] 如上所述,本發明的潤版藥水循環處理裝置以及潤版 藥水循環處理方法,係適用於循環處理使用在平版印刷的 -11 - (8) 1268872 潤版藥水。 【圖式簡單說明】 第1圖,係本發明的實施形態之潤版藥水循環處理裝 置的系統圖。 第2圖,係收容在第丨圖所示的電位吸著過濾器裝置 的殻體內的電位吸著管匣的一部份切口立體圖。 【主要元件對照表】 1…潤版藥水循環處理裝置 3…濃度控制裝置 5···差壓發信機 8a…導入口 9a、9b、9c、9d···循環路 1 1…潤版部 13、14、15···滾筒 2 0…電位吸著管匣 22…分離器 24···封環 2···電位吸著過濾器裝置 心··泵浦裝置 6…旋轉燈 8b…導出口 l〇a、l〇b···連結路 1 2…水箱 16…版 21…介質 23…封端 2 5…芯 12-1268872 (1) Field of the Invention The present invention relates to a method of circulating a treatment of a dampening syrup syrup circulation treatment device and a dampening solution circulation treatment method for lithographic printing. [Prior Art] In lithography, it is very important to perform management of high-quality printing dampening solutions. In printing, impurities such as paper dust, dust, oil or powder are mixed into the dampening solution. Thus, in order to purify the dampening solution containing the impurities, the dampening solution circulation device is connected to the water tank of the printing device. The dampening syrup circulation device is capable of stably supplying a predetermined dampening solution of each component concentration to a water tank of a printing device at a certain flow rate and a certain temperature, and recovering the dampening solution passed through the water tank to be filtered and then regenerated. Add a fresh dampening potion to the tank. At the same time, most of the recent lithographic rotary presses use a continuous dampening solution, and in order to stabilize the water level, an organic solvent of isopropanol (IP A) is used. By adding IPA to the dampening solution, the surface tension of the dampening solution can be reduced, and the non-scribe portion can be uniformly wetted with a small amount of dampening solution. In other words, with IP A, the wettability of the layout can be improved and the print quality can be maintained. However, in the case of the above-described conventional dampening solution circulation device, the filter device uses a porous filter material such as a sponge filter, and is physically filtered to remove the flow from the water tank by passing through the void layer of the filter. - (2) (2) 1268872 of dampening potion stains. Therefore, the removal ability of impurities depends on the pore size of the filter, and even a small pore size filter can remove only about 25 / z m of impurities. If the pore size of the filter is reduced to increase the ability to remove impurities, pressure will be added to the dampening solution through the void layer to form a flow-reducing dampening solution that does not detract from the flow. When it is not possible to use the specified flow cycle to moisturize the syrup, the dampening solution will not function, resulting in a decrease in print quality. In other words, when the traditional dampening solution circulation device circulates the dampening solution for about 2 to 3 months depending on the limit of the filtering ability, the characteristics of the dampening solution may be changed due to the contamination and spoilage of the dampening solution. At the same time, since bacteria in the air invade the dampening solution, it will produce a foul odor if used continuously. Therefore, even if the above-described conventional dampening solution circulation device is used to regenerate the dampening solution, it is actually necessary to frequently change the dampening solution. Therefore, in the present invention, there is provided a dampening solution circulating treatment device and a dampening solution circulating treatment device which do not cause turbidity or spoilage even if a dampening solution is continuously used, and which can prevent the occurrence of malodor, which does not require replacement of dampening solution. method. SUMMARY OF THE INVENTION The dampening solution circulation processing device of the present invention belongs to a dampening and rinsing treatment device using a dampening syrup in a lithographic printing process, and is provided in the middle of a circulation path of a circulating dampening solution. The potential of the potential is used to absorb the filter device, and the dampening solution is characterized by alcohol having a mass of 5% or more. (3) (3) 1268872 At the same time, the dampening solution water circulation treatment method of the present invention belongs to a cycle and purification process using a dampening solution of a dampening solution in lithographic printing, and is based on the use of zeta potential While filtering the dampening solution, it is characterized by maintaining the alcohol concentration above 5% by adding alcohol to the dampening solution. According to the present invention, the positive zeta potential of the potential absorbing filter device is used to suck and remove the fine particles which usually exhibit a negative potential, such as ink, paper powder, dust, oil or powder contained in the dampening solution. Forming can prevent the contamination of the dampening solution. According to this potential absorption function, it is not necessary to use a filter such as a conventional porous filter material to make a small pore size, and it is possible to remove the fine particle component having a diameter of about 4 to 1 〇//m, without pressurizing to the run. The version of the potion caused this to hinder the cycle. In the meantime, in the present invention, it is possible to completely remove the fine particles, and also to prevent the growth of bacteria or microorganisms contained in the dampening solution by using alcohol having a concentration of 5% or more, and the dampening solution is not spoiled. Can prevent the occurrence of bad odor. At the same time, it can be recycled without being discarded after a long period of use, and it can reduce the running cost of dampening syrup. At the same time, by using such a refined dampening solution for lithography, the quality of printing can be improved. Here, when the alcohol added to the dampening solution is used as IPA or ethanol, the surface tension of the dampening solution is lowered, and the non-line portion can be uniformly wetted with a small amount of dampening solution, so that the dampening potion can be stabilized. The water level rises. At the same time, it is desirable to set the alcohol concentration of the dampening solution to a mass of 10% or more. As long as the mass is 1% or more, as described above, it is possible to prevent (4) (4) 1268872 from the growth of bacteria or microorganisms contained in the dampening solution, and to form bacteria capable of killing the dampening solution, thereby preventing The corruption or bad smell of the dampening potion occurs. [Embodiment] Fig. 1 is a system diagram of a dampening solution circulation processing apparatus according to an embodiment of the present invention. The dampening solution circulation processing device 1 according to the embodiment of the present invention is introduced from the introduction port 8a (upstream side) by using a dampening solution used in a lithographic rotary printing machine, and is then discharged from the outlet port 8b (downflow side). Cycle paths 9a, 9b, 9c, 9d. Between the circulation paths 9a and 9b, between the circulation paths 9b and 9c, and between the circulation paths 9c and 9d, a pumping device 4 for forcibly circulating a dampening solution is disposed, and a potential suction using a zeta potential is employed. The filter device 2 and the concentration control device 3 for adjusting the concentration thereof by replenishing the dampening solution are added. Further, the dampening solution circulation processing device 1 is provided outside the potential adsorption filter device 2 and the concentration control device 3, in other words, between the circulation paths 9b and 9d as the detection introduction port 8a side and the outlet port 8b. The differential pressure transmitter 5 that sends the detection signal to the differential pressure detecting device after the differential pressure; and the rotating lamp 6 of the alarm device that issues an alarm in response to the detection level of the detection signal of the differential pressure transmitter 5 . Fig. 2 is a partially cutaway perspective view of the potential absorbing tube accommodated in the casing of the potential absorbing filter device 2 shown in Fig. 1. The potential absorbing filter device 2 accommodates the potential absorbing tube 在 2 在 in the casing in order to be able to exchange the potential -8-(5) 1268872 filter. The potential absorbing tube 匣 20 ' is mainly composed of a medium 2 1 made of resin or cellulose, a separator made of polypropylene separator 22 and a cap 23; a sealing ring made of polypropylene 2 4 - It is assembled by using a polypropylene core 2 5 . In general, after a potential difference occurs at the interface of the out-of-phase contact, a potential portion (fixed layer) that does not play a dynamic role and a portion that plays a dynamic role are generated in the potential formed by the electrical double layer at the particle interface ( Diffusion layer). In the case of out-of-phase, only in the case of relative motion, the electrical phenomenon occurring at the interface is called the interface electrokinetic phenomenon, and the potential existing there is called the interface electrokinetic or zeta potential. The zeta potential is the same as the Tyndali phenomenon or the Brownian motion, and belongs to a physical phenomenon formed by the characteristics of the microparticles. Generally, the microparticles or microorganisms in the liquid exhibit a non-negative potential. The fine particles such as ink, paper powder, or oil contained in the dampening solution also indicate a negative potential, and the medium 21 in the potential adsorption filter device 2 has a positive zeta potential characteristic, and can These particles of microparticles that cannot be removed by a general membrane filter are sucked and removed. At the same time, this potential sorption action removes the fine particle component without pressurizing the dampening solution by absorbing the filter device 2 through the potential. Further, in the dampening solution circulation processing device 1 of the present embodiment, the differential pressure between the circulation paths 9b and 9d is detected by the differential pressure transmitter 5, and when the differential pressure exceeds 2.2 kg / cm 2 , The rotating light 6 is illuminated and an alarm is issued. The medium 2 1 in the potential absorbing filter device 2 is such that when the potential absorbing force reaches a critical point, the differential pressure suddenly rises, and by detecting the _ -9-(7) '(7) '1268872, It is also possible to form a particulate component which does not need to be pressurized to the dampening solution by the potential absorbing filter device 2. Further, the dampening solution introduced into the concentration control device 3 via the circulation path 9c is adjusted so that the mass is adjusted to 5% or more, and then returned to the water tank 1 via the circulation path 9d and the connecting path l〇b. Inside. In the dampening solution circulation processing apparatus 1 of the present embodiment, in addition to absorbing and removing the fine particle component mixed in the dampening solution, and setting the alcohol concentration of the dampening solution to a mass of 5% or more, it is possible to prevent inclusion in the dampening plate. In the case of the reproduction of bacteria or microorganisms in the medicinal water, the dampening syrup does not become cloudy or spoiled, thereby preventing the occurrence of malodor. At the same time, if the alcohol concentration of the dampening solution is set at a mass of 1% or more, bacteria capable of killing the dampening solution can be formed, thereby preventing spoilage or malodor of the dampening solution. Therefore, the dampening solution treated by the dampening solution circulation processing apparatus 1 of the present embodiment is not turbid after being used for a long period of time, and is collected and reused without being treated as waste. As a result, the waste liquid of the dampening solution does not occur, and it is not necessary to entrust the outflow of the waste liquid, thereby forming an operation cost that can suppress the use of the dampening solution used in lithography. At the same time, the printing quality can be improved by treating the lithographic printing using the purified dampening solution. [Industrial Applicability] As described above, the dampening solution circulation treatment device and the dampening solution circulation treatment method of the present invention are suitable for use in circulatory printing of -11 - (8) 1268872 dampening solution. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a system diagram of a dampening solution circulation treatment apparatus according to an embodiment of the present invention. Fig. 2 is a partially cutaway perspective view of the potential absorbing tube 收容 housed in the housing of the potential absorbing filter device shown in Fig. 。. [Main component comparison table] 1...Drying solution circulation processing device 3...Concentration control device 5···Differential pressure transmitter 8a...Inlet port 9a, 9b, 9c, 9d···Circulation path 1 1...Damping unit 13, 14, 15···Roller 2 0...potential suction pipe 匣22...separator24···sealing ring 2··potential sorption filter device heart··pumping device 6...rotating lamp 8b...lead Exit l〇a, l〇b···link road 1 2...water tank 16...version 21...media 23...end end 2 5...core 12-

Claims (1)

(1) 1268872 拾、申請專利範圍 1. 一種潤版藥水循環處理裝置,係針對於一種循環並 且淨化處理使用在平版印刷的潤版藥水之潤版藥水循環處 理裝置,其特徵爲:在於循環前述潤版藥水的循環路的途 中具備利用ζ電位的吸著作用之電位吸著過濾器裝置’旦 前述潤版藥水,係包含質量5 %以上的酒精。 2 .如申請專利範圍第1項所記載之潤版藥水循環處 理裝置,其中,前述酒精,係爲異丙醇或乙醇。 3 · —種潤版藥水循環處理方法,係針對於一種循環 並且淨化處理使用在平版印刷的潤版藥水之潤版藥水循環 處理方法,其特徵爲:在於利用ζ電位的吸著作用過濾前 述潤版藥水的同時,藉由加入酒精到前述潤版藥水來維持 酒精濃度超過質量5%以上。 -13-(1) 1268872 Pickup, Patent Application Range 1. A dampening solution water circulation treatment device for a cycle and purification treatment using a lithographic dampening solution of a dampening solution, characterized by: In the middle of the circulation path of the dampening solution, there is a potential absorbing filter device using a zeta potential. The dampening solution contains 5% or more of alcohol. 2. The dampening solution circulating treatment device according to the first aspect of the invention, wherein the alcohol is isopropyl alcohol or ethanol. 3 - a method for circulating a dampening solution, which is a method for treating a dampening and refining treatment using a dampening solution in a lithographic printing solution, which is characterized in that the above-mentioned run is filtered by the use of zeta potential At the same time as the version of the syrup, the alcohol concentration is maintained above 5% by mass by adding alcohol to the aforementioned dampening solution. -13-
TW92100895A 2002-01-18 2003-01-16 Damping solution circulator and damping solution circulating method TWI268872B (en)

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DE202004010494U1 (en) * 2004-07-05 2004-10-07 Technotrans Ag Dampening solution filter system for the dampening solution circuit of an offset printing machine
DE102008003447B4 (en) * 2008-01-08 2010-08-19 Technotrans Ag Decentralized cleaning system
JP7114131B1 (en) * 2021-12-23 2022-08-08 Bs―1グローバルシステムズ株式会社 Circulation Purification System and Circulation Purification Method

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JPH0425461A (en) * 1990-05-21 1992-01-29 Japan Electron Control Syst Co Ltd Dampening water supply device
JPH07304151A (en) * 1994-05-13 1995-11-21 Toyo Ink Mfg Co Ltd Circulating supply device for dampening water for lithographic printing
JP2000351193A (en) * 1999-06-10 2000-12-19 St Engineering Kk Damping water circulating treatment apparatus and method

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