We are a custom performance apparel manufacturing that does custom sublimated graphics in house, and we've noticed a consistent issue with some of our ombres. When the pieces are exported from Corel into PDFs, and when they are then printed on our sublimation printers, there are faint streaks of either red or blue that show up within the transition of the ombre.
Speaking with our printer technician, he informed us that it was not an issue with out printers, but rather with the way Corel generates the ombres. We've attempted exporting the pieces as different file types, changing some of the ombre settings in the Properties tag, trying different CMYK color values, and nothing has yielded any significant results. Turning the images into bitmaps before exporting is off the table, as it changes the CMYK values of our colors and often lowers the resolution too much to be useable. We've also tried similar methods through Adobe Illustrator and ended up with relatively the same results.
The grand majority of our ombres turn out fine, but it happens most consistently with ombres of black-to-white, and one instance of violet-to white, as shown in the images below. These pieces are printed on Tobago spandex. If anyone has encountered a similar problem before and found a working solution, we would love to hear it, as we have been trying to tackle this issue for awhile!
Has it been resolved?
kadashika
Not yet, still ongoing!
Sorry to hear that, TheLineUp.I would very much like to see a PDF (created from the test file you sent perhaps?), that shows these strange "faint streaks of either red or blue" when printed.Haven't got a sublimation printer but would like to see how it works when printed on a latex or UV printer.Would it be possible to create a PDF and post or upload?
Since apparently I can't upload these pictures to this forum for some reason, I have added them to the Drive folder with the test file.
You should be able to see the red-ish coloration occurring in the top half of the black-to-white ombre in the first image, and there's a streak of much more pronounced blue in the middle of the purple piece in the second image.
drive.google.com/.../157WT4_Ga44Fk5xLG5Bp_g8m2NJeB77t_
Sorry if I was unclear, I meant that I would like to see the PDF you get after exporting from Draw.
That's why I took the approach I did, my process on my system produces the same color numbers in a PDF as I have in CorelDRAW. I believe we need to see his PDF to see if he's getting an issue with his publish to PDF. I know my CorelDRAW is working, I suspect that there is something wrong in the file as it wants to corrupt my Draw. I also suspect that on the OP's end the final results and the process that produced them are not being scrutinized properly.