THERMAL INDICATOR TAPE ROLLER Russian patent published in 2025 - IPC G01K11/18 C09D5/00 G01K11/16 G01K11/06 

FIELD: measuring.

SUBSTANCE: invention relates to devices for visual registration of excess of at least one threshold temperature value, including irreversible thermal indicator elements located on an adhesive base. Disclosed is a self-adhesive thermal indicator tape (TIT) roller, consisting of a plurality of successively connected fragments (TI) and spacers located between them, wherein each of the fragments includes a flexible polymer base coated on the back with a permanent adhesive; at least one gas-filled hot-melt material (GHMM) which is non-transparent for at least part of visible light, made with possibility of irreversible achievement of transparency when heating above threshold temperature due to melting of substance or group of substances included in GHMM; a protective layer welded or glued to the base using an adhesive, configured to isolate the GHMM from the environment both before and after the fragment is separated from the tape along the separator, wherein at least a portion of the protective layer above the GHMM is transparent for at least a portion of the visible light.

EFFECT: invention widens the range of thermal indicator devices, namely thermal indicator labels containing GHMM, which are successively combined into a tape with the possibility of preserving functional characteristics of its separate fragments and isolation of GHMM when the tape is divided into separate fragments (independent thermo-indicating labels).

11 cl, 9 dwg, 1 tbl, 7 ex