I've tried just about every think i can think of trying to press roses and it's starting to piss me off because I've ruined a lot of really good roses. I even ruined my graduation rose trying to press is. How you press a flower?
When I did that the color of the flower always got on the book pagse so i tried wrapping it in a napikan then pressing it in a book but then the napikan stuck to the pages of the book. My sister told me to dry out the flower bu hanging it upside down first then pressing them in a book but the peddals fell off when I tried that
Try rice paper instead of a napkin. That should prevent it from sticking to the pages. It won't help if you dry it out first because then the pedals should break off.
Can you give us an idea of what you have tried? What we did as children was put roses and other flowers in very thick books to press them, it worked fine then.