Ako se misli na gajtan ušiven u porub da bi se dobio reljefni ukrasni rub onda je to piping.
Piping - Decorative or contrasting strip sewn into a seamline forming a decorative edge.

http://www.poly-fil.com/glossary.asp


pip.ing n (…) 3: trimming stitched in seams or along edges (as of clothing, slipcovers, or curtains)
Merriam-Webster's Collegiate Dictionary