Technical guidance GRAPHIC CHEMICALS

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Technical guidanceIn case of dampening rollers with coating we recommend using undiluted cleaners P-23 or P-24. Manual cleaningof dampening rollers should be done in a suitable sink, pour the cleaner over the rollers, then brush the rollersand after that rinse with water.P-23 and P-24 can also be used for automatic cleaning system on classic dampening rollers. In case of moderndampening systems cleaning is performed in the printing machine together with ink rollers.Manual cleaning is performed by wiping the rollers with the cloth or sponge soaked with cleaner. At the end of thecleaning wipe the rollers with clean wetted cloth. For cleaning rubber dampening rollers cleaning emulsion can beused (adding up to 20% of water).Cleaning the gum rubberPour P-23 or P-24 on the cloth or sponge and apply on rubber, afterwards remove the cleaner with wetted cleancloth. We recommend using the emulsion made with up to 30% of water, therefore we avoid preliminary cleaningwith water. After the cleaning the rubber should not be sticky.P-25 UV CLEANER is environmentally and user friendly cleaner of UV-inks. It is the universal cleaner for cleaningink rollers and damping rollers, printing rubber and plates in the UV-ink printing process.Due to its ability of mixing with water, the cleaner is suitable both for automatic and manual cleaning.In case of manual cleaning, pour the cleaner over ink rollers during their rotation, leave the ink to dissolve, set thewiper and remove the cleaner along with dissolved ink. Finally rinse the rollers with water to remove paper dust,and to speed up the drying process on roller surface.Ink from the surface of a plate is removed with a sponge, soaked in cleaner. Finally wipe the plate with clean wetsponge. The cleaner is suitable only for baked plates, because it will dissolve any non-baked printing elements.Printing rubber is cleaned by the same procedure.Traditional humidifiers are cleaned by pouring the cleaner over them, brushing thoroughly and rinsing well withwater. Rubber humidifier rollers are first wiped with the cleaner, and then with clean water.P-26 ULTRA WASH AIII is new universal cleaner with great power of cleaning. It is suitable for removing the UV,hybrid and conventional inks off the ink rollers and rubber gums. Cleaner is suitable for different kinds of systemsfor automatic cleaning. P-26 can be used undiluted or it can be diluted with water up to 30%. P-26 has lower pointof inflammability, flash point is above 55° C (AIII group), has mild odour, therefore gives better working conditionand is environmentally friendly.Automatic cleaningPour the undiluted cleaner P-26 in one reservoir. In the second reservoir is water. Alternate the water and thecleaner are sprinkling on the rollers, and than all together with dissolved ink and other impurities is draining off therollers.Manual cleaningWe recommend cleaning with undiluted P-26 or with prepared water emulsion. Emulsion is made by adding water(up to 30%) into P-26 and mix up well.For cleaning ink rollers we recommend usage of undiluted P-26. While printing machine is running pour P-26 onthe rollers, leave it on, to dissolves and softens the ink, set the wiper to remove all impurities off the rollers.Repeat the procedure, if necessary. At the end cleaning sprinkle the water on the rollers, in order to remove thepaper fibres and all impurities, and then dry.For cleaning rubber gums we recommend to clean it with soaked sponge with P-26. Afterwards the rubber gumshould be wiped with wetted sponge.P-202 WASH-VV can be used for manual and automatic cleaners of dampening rollers in the offset presses.Manual cleaning has to be done in a suitable sink. First wet the rollers, then rinse them with water and then pourover P-202 brush the rollers in the course of fiber and after cleaning rinse the rollers with water and let them drain.For automatic cleaning dilute P-202 with water in the ratio 1:1, then fill the machine up to the screw roller level.Plug the outlet and let the machine run for some time. The solution can be used for several washes. Another wayof doing automatic washing is to leave the drain outlet unplugged. Wash the rollers with P-202 and leave them tosoak for some time. In both cases rinse the rollers well with water and let them drain.8/6
Technical guidanceSPECIAL CLEANERSP-209 WASH for damping systemsP-211 ACTIVATOR – cleaner for conventional offset printing platesP-212 CTP CLEANER – cleaner for thermal offset printing platesP-17 CLEANER – Dried-up Ink RemoverP-162 SCREEN INKS CLEANER – cleaner for print-screen inksP-60 REMOVER – calcium deposits remover from blanketsP-60G REMOVER GEL calcium deposits remover – gelP-209 WASH for damping systems can be used concentrated or diluted with water in the ratio 1:1, whichdepends on how badly the dampening system in the machine is soiled. It removes dirt, ink residue, paper dustand fountain solution deposits.It is recommended that P-209 circulates in the system at least 3-5 hours. After that the system has to be washedthoroughly with water.P-209 is non-aggressive to steel and plastic tubes. It must not get in touch with skin and eyes. The solution isalkaline, therefore use protective gloves and goggles. If by accident it comes in touch with exposed skin, rinse itthoroughly with running water.P-211 ACTIVATOR is cleaning emulsion and activator for aluminum offset plates. Removes printing ink, dried inkand cleans the plate mechanically (oxidation marks) Recommended for standard offset plates.Plates are cleaned in a sink, on a flat surface or in the printing machine. The agent is poured over the plate andevenly dispensed with a sponge across the entire surface. If necessary, the plate can be rubbed gently with asponge dipped in P-211. The plate is then rinsed with running water, or cleaned with a wet sponge. The cleanedplate can now be gummed and put back into the press, or archived.P-212 CTP CLEANER is used for cleaning CTP plates. It cleans ink very well and does not damage printing form.It is free from any abrasive substances. CTP cleaner is applied to the plate with soft sponge. The CTP cleanermay also be used for cleaning of conventional plates.P-17 CLEANER is used to remove dried-up ink from the letterpress printing form and from metal press parts.Since this medium is aggressive, it cannot be used for washing offset plates, rollers of synthetic materials,gummed and photo-polymerized materials.P-162 PRINT SCREEN CLEANER is efficient cleaner for removing print-screen inks. Cleaner P-162 apply tomesh, clean the ink with the sponge, then wash with water or with solution made out of water and detergent.P-60 REMOVER – calcium deposits remover from blankets is water based effective cleaner for removinginsoluble calcium and other mineral deposits on printing rollers and blankets.P-60G REMOVER GEL is a gel used for the same purpose as the liquid P-60. It is a waterbased gel, whichefficiently remove calcium and other mineral deposits on printing rollers and blankets.CORRECTING MEDIUMSCorrecting mediums are used for removing redundant printing elements from printing plate.P-73 CORRECTOR – corrector gelP-73/1 CORRECTOR – corrector pencil9/6
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Technical guidance GRAPHIC CHEMICALS

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