Sorry I could not post any news articles since last week because too many R&D is simultaneously taking place at Grafica and DMI.
1. The EPSON 9900 and POLIRIP
Linearized of Epson 9900 Inkjet Printer is completed with the help of transmission densitometer. Now 50% dot in file is 50% on film (output). Thereafter linearized film were exposed using 4 different screens (with same tension, mesh count) and printed with process color (CMYK) UV inks. While printing the test chart all press condition and parameters were noted to make sure the same conditions are kept in production to get consistent results. High quality PU sharpened squeegee were used to print 100 sheets.
Production screens were used to expose 6 test strips (with dot percentage ranging from 1% dot to 99%), 3 on the top and 3 on the bottom. Full length (30″ x 40″) sheets were used on a the press with 42″ of squeegee length to record press gain. Never take a smaller squeegee to measure the press gain using a smaller test strip and smaller screen to save money or else you will get a huge difference in dot gain.
Finally last 5 sheets were taken to measure the press dot gain to averaged the numbers. Press dot gain was compensated directly into the RIP. There after a high resolution image along with linearization test strips was printed again to check everything is linear.
While sampling all parameters were kept the same and fantastic result was achieved in the first trail itself. There was minor 5% to 6% gain in mid-tones which I re-corrected by editing the same press dot gain compensation setup file.
One major problem solved that now when ever we receive any AI, CDR, PDF, EPS files from customers we need not correct for press linearization using any image editing software the RIP now takes care of all linearization process (positive as well as press). Press dot gain compensation was a big problem in ready embedded files earlier when we use to outsource our positives with various service providers because we had to spent lot of time compensating dot gain in Photoshop earlier by exporting image in TIFF format keeping text in vector so that it overprints all CMY colors.
So in house RIP facility has one big advantage that now we are able compensate press dot gain for a particular ink and substrate thus not to bother about PDF, EPS, TIFF files etc. Directly open in the RIP load any TIFF, EPS, PS, JPEG, PDF files or print the artwork from illustrator, Corel, ID etc. using the print command selecting Epson printers setup file.
IF YOU ARE INTERESTED TO LEARN 100 LPI HALFTONE SCREEN PRINTING IN JUST 2 to 3 DAYS. THAN LET ME KNOW I HAVE STARTED TAKING SPECIAL BATCHES FOR INTERESTED PRINTERS TO LEARN PROCESS COLOR SCREEN PRINTING. BELIEVE ME ITS VERY EASY.
I have also solved the moire issue and you shall not have moire in screen printing even with 100 LPI. No visual angling of positives on screen to eliminate moire pattern.
For complete program details and content kindly contact Ashwini on 9920755561 or email us at firstname.lastname@example.org. She will fix your personalized training program dates.
2. UV Meter development is almost completed and my team is working on standardization of assembly of each parts and we have given it at a very sophisticated lab for calibration to ensure our reading is perfect as per standards.
3. NANO-PRINT my dream project and a dream machine for every screen printers is rocking 3 months 100 machines sold. We have taken another batch of 200 new machines in production. My team is working on accessories related to NANO-PRINT but its a big surprise and I will announce soon. So wait and watch for the BLAST in this HOT SUMMER…
Have a great weekend.