Gravure events reduction
These are then cut or slit down to the finished roll size on a slitting machine or slitter rewinder.
Following engraving, the cylinder is proofed and tested, reworked if necessary, and then chrome plated.
This adjustment is called a bump curve.
Home news Events / Flexo Gravure International: The LUX Platemaking Process: Best of Both Worlds.The Illustrated London News and Der Weltspiegel ).In the simplest terms, the LUX platemaking process uses a membrane to exclude oxygen during the exposure process.After the laser form the image in the digital mask, a special membrane is laminated onto the surface of the plate.The best dot shape, based on a study of print results obtained in corrugated post-print, wide-web and narrow-web formats, an understanding of the dot shape characteristics which are most favourable for print performance were developed.
Wash-board effect lines are caused by higher levels of dot gain in rows of dots which print on the liner board directly above corrugation peaks.
Other appreciated features include: printing cylinders that can last through large-volume runs without the image degrading good quality image reproduction low per-unit costs running high volume production Disadvantages Shortcomings of the gravure printing process include: high start-up costs: hundreds of thousands of copies needed.
As a result the print job is more economically and ecologically friendly.
Measuring the size of the dot in a plate can also be difficult for conventional digital dots.
The membrane can be peeled off at any time without damaging the digital mask or the plate.The pinching of the dot, or dot sharpening, is both an advantage and disadvantage.It's always a pleasure to work with you and we hope to continue doing business with each other for.The valley depth between dots, which are far shallower than the plate relief, was found to allow adjacent dots to deform independently, which in the case of wash-board effect reduction, is critical to success.The wash-board effect is quantified as an F-factor or fluting factor, which is simply the peak-to-trough amplitude of the density variations seen across the sample, with random variation removed by the data analysis algorithm.For example, a 7 size hole in the mask may be needed code promo louboutin to form a 1 dot in the plate.However, recent research has eliminated many of these compromises and may represent the next generation of flexo print capability.
The vast majority of gravure presses print on rolls (also known as webs ) of paper or other substrates, rather than sheets.
According to MacDermid, the process works with all digital imagers, all exposure frames, all plate dimensions, including 52 x 80 (1321 x 2032 mm all dot shapes (round, square, etc and all market segments (thick and thin plate).
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