noun, noun or participle which takes 'suru', transitive verb
heat seal; heat sealing
Technical term for sealing packaging or materials using heat; used as both a noun and a suru-verb.
この袋はヒートシールで閉じられている。
This bag is sealed with a heat seal.
包装機でフィルムをヒートシールする。
Heat-seal the film with the packaging machine.
Variant with interpunct; less common in running text.
Loanword from English 'heat seal'.