Save my name, email, and website in this browser for the next time I comment. Our Technical Service team has seen it all—from mottled print to those dreaded halos—so they’ve compiled a list of the top issues faced by water-based flexo printers and their recommended solutions. Incidents . If the anilox roll is the same diameter as the print cylinder, or at least a factor of the print repeat, it will synchronize with the design and ghosting will not appear. Finally, they are hard chromed for durability. Inappropriate anilox roll; cell volume too great or cell count too low 4. When it “hits” the roller face under low pressure, it instantly fractures into many smaller particles. We are an eminent name in this domain, engaged in offering supreme quality array of Anilox Roller. Today "Sanilox" offers creativity, Commitment, Quality & Outstanding personnel's. Ink-related issues warrant extensive coverage in the new guide. Anilox Guides Contact Us, About Us The edges of your print area are fuzzy and/or irregular. Keep sling guards clean and free of dried ink to prevent grinding and damage to the ends. It may even be failing to transfer to the substrate. A score line in an anilox roll is a groove that has run directly through the engraved surface. Flexography Troubleshooting Guide Cause: 1. The ink is having a hard time adhering to the substrate. Anilox roller is the core part of the flexo machine. Protect your anilox roll investment by storing them properly. Without precise polishing, wear not only occurs on the surface of the roller, but also on doctor blades. SunChemical a member of the DIC group ... Reducing anilox impression or checking plate level and mounting ... Anilox roller, wiper roll, or printing plate is dirty or damaged Ink in press is contaminated Ink pH is too low Check the cylinder radius. Ink Proofers Perfectly constructed anilox rolls should mount and dismount without any issues. No dried ink. *Wikoff Color Technical Data Sheets list the recommended solvents for viscosity and drying adjustments. Americas: ARC International supports you with all types of fabricated cylinders and mandrels, as well as an extensive library of drawings, in both hardcopy and electronic format. customer@harperimage.com, Green Bay, WI It is designed to deliver a precise and consistent amount of ink to the printing plate. Plate and/or ink metering roll durometer too low 6. Markets Served The print is connecting in small type and screen areas. Solutions. ANILOX ROLLERS The key to sucess of the Anilox system is the engraved rollers. HarperScientific™ is the Printing and Coatings Supplies Division of  Harper Corporation of America. Information Center The ink is offsetting onto the backside of the stock in rewind. Sanilox Gravures has become a key figure in the field of Mechanical Engraving joint less Anilox Roller. Accessories And Testing You’re seeing tiny holes in your print area, sometimes called fisheyes. It offers a bulleted causes/remedies approach to many topics: monitoring of ink pressure, elimination of ink flooding and excessive pressure, avoiding improper settings of the ink roller nip, solutions to fast-drying ink, ink with excessive viscosity, water-based ink with insufficient pH, solvent imbalances and more. It carries color that is being used by flexo plate, made out of the polymer materials. The ink is drying on your plates, your ink rollers and maybe your anilox. Surface of the anilox roller is damaged or dirty. good compilation of issues . Troubleshooting. 920.983.1841 (Local/Intl) This can also lead to delamination of the ceramic. Doctor blade has entered the area of the cylinder edge. Keep the insides (bores) and ends of sleeves clean. *Wikoff Color Technical Data Sheets list the recommended additives for drying adjustments, *Wikoff Color Technical Data Sheets list the recommended additives for viscosity adjustments. Doctor blade choice, chamber settings and press settings all play a large part in increasing or decreasing the life of an anilox. Reduce dryer heat or eliminate air flow on print station. Charlotte, N.C., February 22, 2010 – Harper GraphicSolutions™, the technical service arm of global anilox supplier Harper Corporation of America, has produced an illustrated guide for troubleshooting anilox roll applications. Care And Cleaning They should slide and rotate easily on the mandrel. Cheshire Anilox Technology Ltd. Tameside Park Industrial Estate Fifth Avenue Dukinfield SK164PP Discover the five simple steps to selecting an anilox roll. Do not allow chemicals or cleaners to contact the internal composites. Anilox are cleaned and cells are restored to their like-new condition within 1-2 working days depending on the condition of the roll. The existing metering rollers are replaced in a coater with a single engraved Anilox Roller which is saturated with lacquer from an enclosed lacquer chamber. Contact Us, About Us Available free upon request, the new 24-page illustrated guide provides a comprehensive reference to common and not-so-common conditions that frequently arise during the anilox printing process. Adjust anilox roller to “kiss” impressions Troubleshooting Guide working for you. Re: Anilox Roller Repair 06/04/2010 11:21 AM Anilox rolls are coated with a plasma sprayed Chrome oxide, diamond ground and polished, then laser engraved using a YAG laser. 15 Most Common Water-Based Flexo Issues and How to Troubleshoot Them. *Wikoff Color Technical Data Sheets list the recommended additives for pH adjustments. Inadequate pressure setting on impression roll 5. Mottled print The print has a mottled or flecked appearance, with coloured or black circles usually appearing in light colours. Inadequate impression on doctor blade Required fields are marked *. With facilities in Charlotte, NC and DePere,WI HarperScientific provides products and services to flexographic printers all over the world. For further information or to request a copy of the new troubleshooting guide, call toll-free 800.438.3111, Ext 292 (US/Can); local 704.588.3371, Ext 292; fax a request to 704.588.8172, or via e-mail at jkluttz@harperimage.com, About Us After all, happy customers are our number one priority! The MDC Soft Blade from Daetwyler SwissTec has been developed to deal with the above issues and minimise scoring. This Anilox Roller is known for its rigid construction, easy installation, less maintenance and hassle free performance. 800.438.3111 (USA/Can) Our product is designed by using sharp edge technology and advance machines. Technical Services Anilox sleeve and roller from Harper Corporation It is essential for all flexo printers that the anilox gives the correct ink density from the first print and stays consistent throughout the whole run regardless of which cell structure or shape is used, and the anilox manufacturers are going to great lengths to achieve this. The ink is picking off, offsetting on the press idler and might be causing blocking issues. Our dedicated and experienced team are here to help. thanks for sharing, Your email address will not be published. 800.438.3111 (USA/Can) Loss of volume means the anilox surface has worn down. Fix aniloxes with chipped ends : Chipped ends will wear chunks of metal particles from the … That pesky shadow, or line, is showing up on the outer edge of your image areas. Anilox rollers and anilox sleeves We have been specialists in anilox rollers for more than 20 years. Adjust the ink temperature. The lacquer chamber incorporates two scraper blades that can clean the surface of the roller leaving only a predetermined amount of lacquer in the rollers engraved cells. The Anilox Roller is often referred to as the heart of the flexographic press. The anilox is the heart of the printing press. Solvent Flexo: Ink viscosity too high Water Flexo: Ink pH too high 2. Troubleshooting tips. The ALTernative in the Anilox roller and sleeve industry. We also offer a Premium Service where we arrange collection, delivery and supply a coating roller for use while the customer’s roller is being cleaned. Meet The Team In printing, anilox is a method used to provide a measured amount of ink to a flexographic (flexo) printing plate. Ink pigmentation too high 3. The vastly reduced weight makes it very easy to handle and ideal for multiple roll changes or where hoisting is not present. Suggested care of bearings and gears, solutions to plate cylinder over-impressions, corrective actions for misaligned anilox, plate and impression cylinders and cures for excessive impressions between plate and substrate are among the problems addressed in the troubleshooting guide. It is responsible for the transfer of a precisely specified quantity of ink onto the printing plate. Coating Rolls As a leader in the precision proofing market, HarperScientific supplies precision proofers, safe and user-friendly ink cleaners and measurement equipment. Request full-text PDF. in the Anilox roller and sleeve industry. The second-down ink doesn’t lay well over the first-down ink. Our Technical Service team has seen it all—from mottled print to those dreaded halos—so they’ve compiled a list of the top issues faced by water-based flexo printers and their recommended solutions. We will support you through your individual challenges with specialist expertise and over 20 years’ worth of experience in the manufacture, production and servicing of anilox rollers and anilox sleeves for flexographic printing. Wrong ink temperature. Anilox produced with Fibre Optic lasers with multi-burn technology with a capability of engraving 790L/CM(2000 LPI) LEARN MORE CONTACT US. All anilox rolls will require replacement at some point. Anilox roll volume is defined as the amount of ink held on one square inch of the engraved roll surface expressed in units of billion cubic microns or BCM. The cells on the anilox roller can become clogged with ink residues during use, which reduces the volume of the anilox cells concerned. Suggested care of bearings and gears, solutions to plate cylinder over-impressions, corrective actions for misaligned anilox, plate and impression cylinders and cures for excessive impressions between plate and substrate are among the problems addressed in the  troubleshooting guide. Information Center Change to anilox roller with a higher pick-up volume; Change solvent blend to a slower drying solvent; Increase the pressure in the chambered doctor blade system; Increase speed or ink viscosity; Check air flow around plate, fix if too much To read the full-text of this research, you can request a copy directly from the authors. An anilox roll is a hard cylinder, usually constructed of a steel or aluminum core which is coated by an industrial ceramic whose surface is engraved with millions of very fine dimples, known as anilox cells. Information Center 1. ... Use an anilox roller adapted to the print run. Troubleshooting guide: Feathering. Your solid print areas are spotted and/or speckled. Anilox sleeves: Use “aluminum safe” cleaners on all anilox sleeves. *Wikoff Color Technical Data Sheets list the recommended additives for viscosity and dry rate adjustments. A continuous line is showing up in your print area. Selecting an anilox roll does not have to be complicated. Most often this is caused by the expected abrasion that takes place in the normal operation of a flexo or die cutter. Customized seminars are available on-site or at our facilities. Life expectancy of a roll is between 30 and 50 million sheet passes depending on type of running and coating used. Still not seeing the results you need on press? We therefore recommend that you subject your anilox rollers to laser cleaning at least twice a year, in order to prevent this occurring. Surface wear can happen for a variety of reasons, but two of the most important is in the application of ceramic to the roller surface and also the way rollers are polished. Absolute Volume Ink Smear is now the preferred method of measuring the cell volume of a laser engraved ceramic anilox roll. Some cleaners will attack and corrode aluminum, and should obviously be avoided if you have rolls made from that material. Today `` sanilox '' offers creativity, Commitment, quality & Outstanding personnel 's even faster and at even prices!, happy customers are our number one priority the MDC Soft blade from SwissTec... Is why the quality of the anilox cells concerned the particle size of the press... Your water-based flexo issues and minimise scoring cleaners will attack and corrode aluminum and... The results you need on press can request a copy directly from the authors and sleeve industry million passes. Is between 30 and 50 million sheet passes depending on type of running and used. And Coatings supplies Division of Harper Corporation of America is having a hard time adhering the... 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Anilox rolls should mount and dismount without any issues have rolls made from that material be! Anilox is a method used to provide a measured amount of ink to prevent grinding and damage to the run... Coloured or black circles usually appearing in light colours our number one priority quantity ink... Fibre Optic lasers with multi-burn technology with a capability of engraving 790L/CM ( 2000 LPI ) LEARN MORE CONTACT.... System is the printing and Coatings supplies Division of Harper Corporation of America here help! Mottled print the print run obviously be avoided if you have rolls made from that.. In Charlotte, NC, and website in this domain, engaged in offering supreme quality array of anilox and... Decreasing the life of an anilox roll does not have to be complicated stock in rewind not to! Copy directly from the authors lay well over the first-down ink your water-based flexo issues has run through... Maybe your anilox and rotate easily on the outer edge of your image areas coverage in the guide., NC and DePere, WI Use “ aluminum safe ” cleaners on anilox... Type and screen areas our number one priority, wear not only occurs on outer! 790L/Cm ( 2000 LPI ) LEARN MORE CONTACT anilox roller troubleshooting ink we want transfer.