① Uneven adhesive application resulting in streaks on the film surface;

② Presence of odor;

③ Transverse arching or warping;

④ Longitudinal spiral curling;

⑤ Severe self-adhesion between layers;

⑥ Low transparency;

⑦ Asymmetric or uneven adhesive application on H-type cover tapes, obscuring markings;

⑧ Misalignment during cutting of H-type cover tapes;

⑨ Burrs or jagged edges on the cover tape.