Vim li cas thiaj tuaj yeem Thermal ntawv luam tsis muaj number cask lossis Ribbon? Qhov no yog vim tias muaj daim txheej nyias nyias nyob rau saum npoo ntawm cov ntawv thermal, uas muaj qee cov tshuaj tshwj xeeb hu ua leuco dyes. Leuco dyes tus kheej yog tsis muaj xim, thiab ntawm chav sov, thermal ntawv zoo li tsis txawv ntawm daim ntawv dog dig ....