noun
release paper; release liner
Technical term for paper with a non-stick coating, used as a backing for stickers, labels, or adhesive sheets.
シールを剥離紙からはがして、ノートに貼った。
I peeled the sticker off the release paper and stuck it in my notebook.
このラベルは剥離紙が付いています。
This label comes with a release liner.
Compound of 剥離 (はくり, 'peeling off, release') and 紙 (し, 'paper'). The term is a straightforward technical compound.