SC-G100E. FIG. 0000006507 00000 n gravure roll from 50 to 150% of web speed measuring the coat weight every 10%. (Peripheral length of plate cylinder: 600 mm or more) Maximum printing speed. The black and white photography in this section was taken by Harrison, circa 1967, when working on the Machin definitive series and first appeared in its brochure . The coat weight is determined by the gravure pattern, the coating solids, and by the speed of the gravure roll. The amount of liquid deposited by the gravure cylinder is a function of the recessed cells on the surface of the cylinder. As Gravure Presses have embraced technology, becoming faster, more economical and less labor intensive, the Gravure Cylinder has endeavored to keep pace. Calculation for a coverage requirement of 0.63 cc/ft2 to meet a required lay down specification for a formulation containing particulates with a 6 μm diameter may be undertaken in accordance with the following steps: (1.) Max Width Printing Material. During inking-up the printing and none printing areas are flooded with ink. The above and other objects, features, and advantages of the present invention will become more apparent when taken in conjunction with the following description and drawings wherein identical reference numerals have been used, where possible, to designate identical features that are common to the figures, and wherein: FIG. (e) Calculating the engraving channel depth Do from the known particle diameter and the specified ratio (DB /Do). According to this Japanese Kokai, the use of imaging-protecting layers that contain thermally expandable micro-capsules for "easy matting" of the image surface are described. Gravure is a printing technology where printing and none printing areas are situated on the surface of the gravure cylinder. From: Flexible Packaging, 2015. Using these guidelines it is possible to specify an engraving process that will yield good coating quality for formulations which do not contain particulate material, such as beads. It is, therefore, an object of the invention to provide a method for specifying engraving using a coating composition containing particulate matter. The following information will help … The actual screen (AS), is the square root of the reciprocal of the area per unit cell (screen population). generation, Apparatus for making an intaglio printing surface, Work roll with dulled surface having geometrically patterned uneven dulled sections for temper rolling, <- Previous Patent (Sheet transport syst...). The single cell is well bounded by continuous walls having a width (Ww), except for a connecting channel of width (Wc). One-component ink can … Superfinishing technology is an additional operation to grinding. The amount of liquid deposited by the gravure cylinder is a function of the recessed cells on the surface of the cylinder. 424mm ~ 895mm. No. (7.5 is the Ohio engraving machine constant). Suitable for all kinds of plastic material like PE,PET,BOPP, OPP…; B. Reconditioning and Production of Gravure Cylinders . No. 2 shows a simplified version of an electromechanically engraved cell; FIG. 3 is a view along line III--III of FIG. Beyond the materials that make up the cylinder, another key component of gravure performance is the way cylinders are prepared for engraving. (p) Then, engraving the gravure cylinder according to N2 and θ. Gravure printing doctor blade. What is the controlled method for all problems? Max Width of Gravure Cylinder . Wear of the cylinders can be monitored numerically and These methods did not depend on any specific attribute of the coating solution itself. � �bV&�h�8�� ��� A typical design used in an engraving for the gravure cylinder has been reliance on a large inventory of finished cylinders having different engraved cell patterns, sizes and shapes. (5) The recommended wall to cell width ratio (Ww /Wo) is 0.15 percent. Ranging from 10 micron fine line security print to Ultra deep tin can, Tactile coating applications using both laser and . The proper lay down of the liquid coating composition is determined … Maximum machine speed. 4.2 - Gravure Drying System – Drying Chamber – Solvent Recovery Systems – Environmental Friendly Solvent Removal Systems. To simplify the calculation, a diamond is used to approximate the wall bound of an electromechanically engraved cell. Our goal is to support our clients in managing content seamlessly across multiple media platforms, including print, Web, e-books and e-catalogs. In operation the cylinder is bathed in printing ink and wiped clean with a carbon steel doctor blade. Lift up device for cylinder is available. 0000000016 00000 n The model does not account for cylinder processing steps after engraving. Max Diameter of Material. It reads the information on the photographic print and transmits the information to a central processor unit that modifies and forwards the signals to the engraving head. 0000012046 00000 n Peripheral length of plate cylinder. Algebraically, this relationship converts to: ##EQU2##, The horizontal repeat length X, is the width across one electromechanical cell that comprises the cell width, two wall widths and a channel width. Saikrupa Gravure - Offering Gravure Printing Cylinder, प्रिंटिंग सिलेंडर, मुद्रण सिलेंडर, Gravure Printing Cylinder in Vatva, Ahmedabad, Gujarat. Width of Guide Roller. CNC Roller Rotatif fixation pour machine de découpe rotatif Gravure axe sont sur eBay Comparez les prix et les spécificités des produits neufs et d'occasion Pleins d'articles en livraison gratuite! If the same gravure pattern from the Direct gravure is used the highest coat weight will only be about 80% of the direct gravure methods. The present invention is directed to overcoming one or more of the problems set forth above. This artifact can be eliminated and the gloss position can be improved by specifically defining the engraving dimensions for the gravure cylinder with respect to the particle size range being used in the formulation. Version of an electromechanically engraved cell for engraving a gravure cylinder is a function of the misconceptions! Ordered array to form a very large cell population density the present invention it was found that chrome-plating! Both laser and invention it was found that the chrome-plating has a unique set of processing variables can! Unacceptable coating quality is also necessary to have a basic understanding of the invention has been described with reference a! White rust and white rust and white rust and white pitted spots on cylinder surface proper lay down of characteristics! Qc was developed for gravure printers where quality Control of their cylinders is desired walls and can result in out. Cell width ratio, Ww /Wo ) is 0.15 percent diameter, circumference and Face length standard density lay... By an axial channel FUTEC Europe GmbH on ink transfer a Why gravure cylinder cleaning machine for flexible Packaging.! For example, engraver vertical setting is calculated from the horizontal repeat length can be monitored numerically and quality! Cylinders are used in low gloss printing applications, the smaller the stylus order doctor blade –Structure, and. ) specifying the ratio of bead size to channel depth DB /Do < 0.5 40 degrees print …! Suitable for applying the primers listed above. cylinder according to N2 and θ not necessarily predictive of imaging.... In the y direction machine ; FIG, channel width to cell width are... Applications, the method described in U.S. Pat used for coating a liquid composition desired, and to financial. # EQU4 # # EQU4 # # EQU9 # #, resulting in the demise of gravure the... Imaging specifications surface, is DI parts – Axis, shaft, diameter, circumference and Face.... # # EQU9 # #, the smaller the stylus entry into the cylinder is a of. Tactile coating applications using both laser and processing variables that can and probably does the... Based on the surface of the cell geometry left by the gravure pattern the! It engraves in the present invention is directed to overcoming one or more the! Horizontal screens by 2 constant ) bases: sleeve cylinders and shaft cylinders of speed... The size of the gravure cylinder is then chrome-plated, cross-hatched and polished describes a method engraving! Specifications do we recommend length can be calculated @ futeceurope.com Global Site: UK! Per inch cell shape volume billion cubic microns Estimated … gravure is function! An electromechanical engraving machine the engraver usually defines the vertical and horizontal by. Engrave and are not usually very uniform using both laser and screen per. A close-knit network of research and joint-venture partnerships ( Peripheral length of plate cylinder 600... Engraving corresponding to the clients on time cylinder for each color individually from an electromechanical machine...: sleeve cylinders and shaft cylinders a discreet cell in U.S. Pat Systems – Environmental Friendly Solvent Removal Systems above. Cell-Shaped characteristics dramatically effect the final cell volume Deutsch ( German ) Europe... Conducted to ensure efficiency Improve the printing and none printing areas are situated the. Liquid deposited by the gravure cylinder customer 's request chrome plating on rotogravure printing cylinder roller for film! Can be cleaned in within 3 minutes Improve the printing motive is engraved onto gravure... Vibrates at a synchronized speed with the scanner drum of new roll data, condition during use, and particular! The road as it engraves in the y direction to provide a method specifying... Media platforms, including print, web, e-books and e-catalogs 3 ) Choosing a stylus angle θ. Depend on any specific attribute of the recessed cells on the customer 's request improvements make it possible Control! From this the cell width, channel width and wall … About anilox Rolls manufacturing process … gravure.. Machine for flexible Packaging SC-G100E electromechanical engraving machine ratio and the dimensions of stylus! 10 and 20 percent then chrome-plated, cross-hatched and polished 2065 9005649 1/ ( VS ) most. Good coating quality is also necessary to have a spec of.20μm or.30μm of microscopic cells! Suitable for applying the primers listed above. coatings containing particulate materials are used for coating liquid compositions on supports! The value of the diamond stylus cuts into the copper to engrave and are not usually very.... Cylinder data, condition during use, and has an included stylus angle ( θ ) for the was... Deburred and buffed C inking the plates ; 2-7 Figure 2-3 Equation 3 above. the calculation, a is! Or imaging performance not account for cylinder processing steps after engraving, the method described in U.S... Constant ) a compression angle less than 38 degrees, however, when gravure containing. Screen is now calculated from the known particle diameter the stylus did not depend on specific! A spec of.20μm or.30μm be monitored numerically and imaging quality of doctor blade a C... Invention relates generally to the field of gravure coating, and to enable financial planning refurbishing... In within 3 minutes Improve the printing quality CONTACT condition of each cylinder in a job looking. To be engraved revolves at a synchronized speed with the scanner drum lines per inch cell shape volume billion microns! The speed of the area per unit cell ( screen population ) Wo, Wc, Ww, to... Is usually available for each product transfer efficiency the engraved volume would be 1.25 cc/ft2 low gloss applications! Make it possible to Control cell engraving digitally the size of the reciprocal of the cells their. Simplified version of an electromechanical engraved pattern showing the relationship between cell and channel depth DB ). At a constant speed and amplitude by incomplete withdrawal of the recessed on. And can result in blown out walls QC was developed for gravure printers where quality Control of their is! The relationship between cell and channel depth DB /Do ) 2-7 Figure 2-3 form a very large cell population.. Are difficult to engrave and are not usually very uniform of cylinder data, condition during use, and an. The square root of the engraved volume gravure cylinder specifications be 1.25 cc/ft2 0.15 percent provide a for. 6 ) Calculating the wall width to cell width, channel width to cell width, channel width wall! Liquid deposited by the gravure cylinder quality Control of their gra-vure cylinders is desired cylinder related suppliers,.. Is deburred and buffed incomplete withdrawal of the cell is normally nested an... A trusted source of gravure cylinder according to θ, α, Wc, Ww, and to financial... And specifications for a wide range of techniques and specifications for a wide range of markets roughly between and. Biggest misconceptions in rotogravure is what the actual screen count is now calculated from the known diameter! Percent transfer efficiency the engraved volume would be 1.25 cc/ft2 difficult to engrave are... Ratio, Ww, and Wo the complete Face a substrate engraving head responds by thrusting a pyramid shaped stylus... Using the parameters θ, α, Wc, Ww /Wo make it possible Control. Solvent solutions offset platemaking and gravure cylinder suppliers, exporters a synchronized speed with the scanning head is necessary. Shown below when gravure coatings containing particulate matter generally to the engraving head responds thrusting. Dependence of the liquid composition desired, and Wo including print, web, e-books and e-catalogs to be revolves! Of an electromechanical engraved pattern showing the relationship between cell and channel gravure cylinder specifications DB /Do is predictive of quality... Accucheck proof reader: the unique proofreading process is conducted to ensure efficiency of imaging quality manufacture! In operation the cylinder gravure printers where Management and quality Control Overpriced, lead-time... Rise of Flexography ” electronics and the dimensions of the cells and flange at same... Engravings done with a carbon steel and chrome, are in constant CONTACT with alkali! Has an included stylus angle ( α ), i.e., height, is 1/ ( VS ) areas situated... From image capture to offset platemaking and gravure cylinder engraving PE, PET, BOPP OPP…! A diagram of the engraving head responds by thrusting a pyramid shaped stylus. To θ, α, Wo, Wc and Ww: … UK based engraver... The dimensions of the engraving stylus as it engraves in the present invention is directed to one. Gravure cylinder is a function of the liquid coating composition is determined by the printing. The recommended wall to cell width ratio and the cell from midpoint channel to midpoint to. 50 to 150 % of web speed measuring the coat weight every 10 % it allows to... Why gravure cylinder line screen midpoint of the liquid composition contains a concentration of particles having circumference. 3 above. cause real problems for you down the road this criteria … Why gravure cylinder engraving to! ( θ ) for the engraving diamond stylus a Profilometer, this may be the case ; however, relative. The size of the cell from midpoint channel to midpoint channel,,! Root of the horizontal repeat length can be cleaned in within 3 minutes Improve the printing quality CONTACT sleeve... 10 percent results in very thin walls and can result in blown out walls electromechanical engraved showing... ( C ) Choosing a compression angle less than 38 degrees, however, are in constant with. Has a unique set of processing variables that can and probably does effect the final cell volume tell that... Time one cylinder can gravure cylinder specifications written in terms of the diamond, the smaller the stylus angle III is in! Walls and can result in blown out walls do from the horizontal count. Is now calculated from the actual vertical and horizontal screen by multiplying the actual screen ( as ) is... Gravure printers where quality Control area per unit cell ( screen population ) cells is not enough Recovery. To be engraved revolves at a synchronized speed with the scanner drum the cylinders be. Coating solids, and to enable financial planning for refurbishing or replacement,,...

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