Additional printing techniques were developed for very specific applications. A free powerpoint ppt presentation displayed as a flash slide show on id. Gravure is an intaglio process the image is recessed into the printing plate, in contrast to relief processes in which the image rises above the printing platelinoleum printing is a relief process. There is various printing technology used for packaging which includes offset printing process, gravure printing process, flexographic process, typography, offset printing, screen printing, pad printing, spherical printing, and thermal transfer.
The process is the reverse of relief printing, in which the image is raised from the surface of the plate. A channel or sunken area is left, this holds the ink. There is an opportunity to optimize color gamut for process color printing before we address process control for repeatable color and color management for predictable color. Pdf many factors affect the print quality and ink transfer. The rotogravure printing process commonly shortened to gravure is a method of intaglio printing. It uses a depressed or sunken surface for the image. China 2stuttgart media university, stuttgart, germany abstract. Section 1 introduction the flexographic and gravure. Pdf some factors affecting ink transfer in gravure printing. Gravure process and technology nuzers gravure process and technology 7 gravure is a direct printing process. Rotogravure printing is widely used for printing on. Gravure printing may also be used for printing magazines, greeting cards, brochures, and advertising collateral. Variation of gravure printing characteristic curves xinguang lv 1, chang liu, yumei wu1, heiner ipsen2 1packaging engineering institute, jinan university, zhuhai, p.
Gravure printing is an industrial printing process and it mainly used for highspeed production of large print magazines, catalogues, and. Photogravure was invented in 1890s germany for commercial printing of periodicals and books, and. This is brought to you as another fulfillment of our service to the industry. Its introduction into europe in the early sixties, along with flexo printing, almost entirely ousted the current technology of the time. Pdf gravure printing technology a to z and quality. Packaging gravure printing problems and their solutions on the following pages, you will find the information on the most common packaging gravure pressroom problems, how to recognize them, their causes and how to correct them. Printing process the application of a liquid ink to the traveling web substrate is. Intaglio is the process used in printing and printmaking in which an image is incised into a surface and where the incised line or sunken area holds the ink. Screen printing as its name implies, this printing technique relies on a screen, which is a woven piece of fabric. Gravure printing is an industrial printing process, which is consistently capable of producing prints of outstanding quality. May, 2014 take a look at how the offset lithographic printing process works. Gravure is usually not cost effective for short runs, and changeability is also an issue. Gravure printing process is a form of intaglio printing. Chapter 3 printing processes a printing process describes the method adopted by a system to transfer the image on to a substrate material.
This also means that a printing system will have a medium that carries the image in the first place before it enables the. Mar 06, 20 this film guides you through the whole production process of a rotogravure cylinder and an embossing roller. In this thesis, gravure printing for printed electronics is advanced on multiple levels. Even though it is still used for some special metal applications, this process is commonly associated with twolevel plastic substrates. Gravure is an advanced, hightech printing process operating the fastest and widest printing presses in the world, and was the first printing process to employ a totally digital environment. Gravure is an intaglio class printing process requiring a multistep procedure using a number of machines and professional people. It can be used for cmyk printing and is often used for highvolume printing of packaging, wallpaper and gift wrap. These include flock printing, letterpress, intaglio, pad printing, and thermography. In gravure printing, the image is engraved onto a cylinder because, like offset printing and flexography, it uses a rotary printing press. Flexible packaging printing processes overview slide 14 2009 consumer packaging solutions for barrier performance course treatment substrate surface preparation most plastics such as polyethylene, polypropylene and polyester have chemically inert and nonporous surfaces with low surface tensions causing them to be nonreceptive to. The design of the image and text is laser etched and transferred on to multiple sheets of. It is an intaglio process, socalled because the design to be printed is etched or engraved below the surface of the printing plate.
Schematic drawing of the flexographic printing process. In the course of the centuries many different printing technologies have been developed and these can be divided into four main technologies according to. Pdf rotogravure print quality evaluation analysis, pitfalls and. Rotogravure printing, system of printing based on the transfer of fluid ink from depressions in a printing plate to the paper. As in the gravure printing process, a different printing cylinder is needed for each color. The market demand for printing on cartons is large.
Gravure is gradually losing market share to offset for publication printing and to flexo for packaging applications. Flexible packaging printing processes overview slide 36 2009 consumer packaging solutions for barrier performance course. In this chapter, the bases of gravure printing process ink transfer, drying, gravure cylinder, doctor blade, impression cylinder, characteristics of the prints and the. Troubleshooting ink problems on your gravure presspdf. Coating and printing processes for the surface functionalization newest developments in coating and lamination for specialty films and flexible. This film guides you through the whole production process of a rotogravure cylinder and an embossing roller. Gravure printing graphic communication processes definitions intaglio sinking words, pictures, or designs into a printing plate or cylinder process used before. Flexible packaging printing processes overview slide 17. Gravure printing is a wetondry method, in the course of which the ink layer is dried by blowing hot air onto the prints, after each printing units.
Intaglio is the term used to describe gravure printing italian for printing in a sunken surface roto gravure. Viscosity control can help alleviate the frequency of some of the following miscues. Gaa promotes the gravure printing process for publication printing, package printing and product printing. The basics of gravure printing is a fairly simple process which consists of a printing cylinder, a rubber covered impression roll, an ink fountain, a doctor blade, and a means of drying the ink. Pdf gravure printing technology a to z and quality trouble. The process of burning away surface contaminants by forcibly spraying a flame onto a substrate surface.
Section 1 introduction the flexographic and gravure printing. To enable to build up pattern with high fidelity demands a study on the effect of process parameters in gravure printing. In order to explore the influence of the various factors on the printing characteristic of. Once a staple of newspaper photo features, the rotogravure process is still used for commercial printing of magazines. Printing times are extremely quick, with modern presses able to produce up to 14m of film per second. Gravure sheetfed offset uv web offset news ink home flexography troubleshooting guide adhesion bleed blushing hazing, fogging color too strong color variations among same color jobs being run in a plant dirty printing excessive ink consumption fillin.
Gravure printing is characterized by excellent print quality and high printing speed. Each of the steps in the gravure printing process is explained here from the beginning of the process to a. Coating tray pan gravure roller etched metal roller doctor blade impression. Troubleshooting ink problems on your gravure press pdf please be advised that pia is complying with a mandate from the state of pennsylvania governors office to temporarily close our location. Gravure printing is the highest quality print method with excellent design reproduction and the best range of density from light to dark. Introduction to printing process the gravure graphics. Its further advantages are that it involves a simple printing process, accurate ink use, and the flexibility. Advantages of gravure printing in packaging law print pack. Gravure printing cylinder for packaging setup from steel cylinder to printing layer. Ribbing scratching the web solid build up important parameters include. Gravure film weight and solvent based technology gives metallic inks the best.
Rotogravure or gravure for short is a type of intaglio printing process, which involves engraving the image onto an image carrier. Variation of gravure printing characteristic curves. Pdf printing processes and their potential for rfid printing. In this type of printing, the printing areas are in recess. Patterned silver nanowires using the gravure printing process for. Gravure process and technology gravure education foundation on. Printing of one form or another has been with us for centuries and whilst the technologies of both the printing process and the ink formulations have changed considerably the main functions of decoration and information remain. The design of the image and text is laser etched and transferred on to multiple sheets of aluminium called the press plate.
Packaging, gravure, color, gamut, amplitude abstract. Printing processes offset, flexo, digital, gravure. Operating your gravure printing process without reliable viscosity monitoring and control can lead to a number of costly errors. Gravure printing is an example of intaglio printing. Gravure presses generally print on rolls of paper as opposed to sheets of paper and gravure printing is one of the most efficient and widely used printing operations. Process modifications include placing a hood above the press, a partial enclosure around the press, more pickup vents, more a total pressroom capture can also be beneficial. In gravure printing, the engraved cylinder is submerged in an ink fountain and then rolled over the. Gravure is royal mails specified printing process for its definitive stamp range and has been the main method used in britain since 1934. Gravure printing is the only high speed and volume print process capable of printing continuous tone images. Gravure printing is a particularly promising printing technique because it combines high print speed with high resolution patterning. Gravure printing pan less pressure chamber system for direct coating and printing. Then, their potential for rfid printing is addressed. Grainy print how recognized probable causes suggested remedy print not smooth 1. Publication gravure printing is the printing by the rotogravure process of a variety of paper products such as magazines, catalogs, newspaper supplements and preprinted inserts, and advertisements.
Printing technologies flexo printing gravure printing. Why a certain job is better printed using one of these processes mentioned can be read on this page about choosing a printing process. Pick up of coating from the pan fill up the cells in the gravure roller wipe out the excess coating by doctor blade transfer the coating to the web empty the gravure cells after transferring to web gravure printing the process. Pick up of coating from the pan fill up the cells in the gravure roller wipe out the excess coating by doctor blade transfer the coating to the web empty the gravure cells after. As a direct print process gravure printing results in better ink laydown and more consistent print quality. Ppt gravure printing powerpoint presentation free to. Gravure printing is the highest quality print method with excellent design reproduction. The ink is transferred to a substrate paper, plastic, film, and more using a rotary press. To understand rotogravure printing, a brief primer of intaglio is required. There are a number of characteristics or clues which, if they can be.
How does the offset lithographic printing process work. Take a look at how the offset lithographic printing process works. In the course of the centuries many different printing technologies have been developed and these can be divided into four main technologies according to the type of image carrier used. A simple picture of each step is shown adjacent to the explanations. This also means that a printing system will have a medium that carries the image in the first place before it enables the process of reproduction. Multicoloured rotogravure printed polythene bag 60 m. Gravure printing technology a to z and quality trouble shooting tips. Gravure printing, photomechanical intaglio process in which the image to be printed consists of depressions or recesses on the surface of the printing plate. Gravure is small cells recessed into a cylinder that hold ink. The history of ink production writing inks were first manufactured in both ancient egypt and china in about. Coat thicknesses in the range of less than 1 micron up to 50 microns can be achieved, making this a versatile process which is finding application. Gravure definition is a process for printing from an intaglio plate. With its numerous technical solutions, hell is continuously redefining international standards in its many core areas of expertise the electromechanical and direct laser engraving of gravure and embossing cylinders and the highresolution direct engraving of elastomer printing forms for relief printing.
First of all, the full name of this method of printing is rotogravure, although gravure is the more common term. Gravure printing is an intaglio process that produces fine, detailed images. Gravure as an industrially viable process for printed electronics. Publication printing is the largest sector involved in gravure printing, representing over 37 percent of the total gravure. Engraved imagery engraved imagery is ideally suited for very limited production, or when many individual nomenclatures are required.
Viscosity control can help alleviate the frequency of. Gravure characteristic curve reflects the process of dot transmission. Coating tray pan gravure roller etched metal roller doctor blade impression roll rubber roller the process. Offset 7 in this method, graphics are transferred or offset from a printing. Gravure roll coating is a technique used to coat fluids of a wide range of viscosities up to 1500mpa sonto substrates at speeds of up to 900 mmin booth,1970,1990. In section 3, the focus is the demand side, concentrating on the desired characteristics of the various printing processes and their primary consumers by use and. In gravure printing, the image area is engraved, or intaglio relative to the surface of.