Heat shrinkable film label material selection should pay attention to what?

Heat shrink labels to meet user requirements for terminal function, which is the primary factor to be considered when designing a tag, if the bottle type belongs to the special bottle, shrinkage to more than 70%, they should use PETG film, PVC film is only applicable to ordinary bottle type; on the other hand, PETG films and PVC films were is higher than that of OPS film, so if the label appearance needs better feel, should adopt the PETG film or PVC film.