Serrated packaging knives must repeatably cut material that can vary in thickness, structure and behavior. An incomplete cut can lead to rejections or interruptions. To study the problem, it is convenient to differentiate the state of the tooth, the position of the material and the operation of the cutting assembly.
Describe the packaging and the defect
Indicate structure of the film or sheet, thickness, width and cutting operation. Save samples and mark which area is left unseparated. Record whether the defect appears at boot, with a certain format, or after several hours. The information allows you to check if there is a relationship with the material, the fit or the evolution of wear.
Don’t attribute everything to the teeth
The clamping and guidance of the material, the complementary tool and the position of the cut can influence the result. Inspect these items following the equipment procedure. Do not improvise pressure, temperature or timing to compensate for a damaged part. An ordered diagnosis changes one authorized variable at a time and retains samples of the result.
Identify geometry and fixation
In addition to length, width and thickness, document the tooth profile and pitch, cutting edge, drill holes and mounting direction. A copy based on a very worn part may reproduce a defect. Prioritize plane or nominal reference. Industrial tools for different materials are specialized by process, as Kanefusa’s product organization shows.
Plan quality control
Match reception and testing criteria with production and maintenance. Compare cutting continuity, rejections and time between interventions with the same format. Identify the installed kit to avoid mixing part history. If you change the packaging material, check the suitability of the tool and retain a sample of the new product.

Frequently asked question
Does a more aggressive toothing improve any film?
The geometry must correspond to the material and the cutting mechanism. Modifying it without validating it can alter the quality and behavior of the set.
Documentation and related reading
Technical reference: Kanefusa: range of industrial tools. The practical observations in this guide must be compared with the documentation of the installed equipment.
Expand information with our related technical guide and consult the Sharp industrial spare parts.
Consult a blade or spare part
Send us your query with brand, model, reference and photographs to study the piece and prepare a quote. For tools in service, also see tool options. sharpening and repair.