Hello again. I got to pick the words of the week and I thought I'd post some that might be useful to know for your packaging project.
Die: A pattern or design of sharp blades that, when mounted on a press, are used to cut shapes out of paper or board.
Hairline Rule: Traditionally, the thinnest line that is possible to print. Usually 0.25 point.
Tummy Band: A strip of paper containing a sales message fixed around the middle of a publication [or package]. Also called a belly band.
Good luck finishing up!