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Converting(Slitting)
Converting(Slitting)
Pressure Sensitive Adhesive Tapes for Sales and Marketing Professionals
Tape University Basics May 12, 2009
Slitting ExpectationsSlitting Expectations
• Consistent unwind throughout roll
• Dimensionally stable roll
• Nick free edges
• On core rolls
• Consistent unwind throughout roll
• Dimensionally stable roll
• Nick free edges
• On core rolls
Basic Slitting Methods UtilizedBasic Slitting Methods Utilized
• Score
• Razor
• Shear
• Lathe
• Score
• Razor
• Shear
• Lathe
Type of backing governs method of slitting
Plastic CoresPaper
Cores
Common Roll SizesCommon Roll Sizes
• Core Sizes-1, 1.5, 3 and 6 inch ID
• Roll widths-1/4-3 inch common and up to 36 inches common for construction type applications
• Core Sizes-1, 1.5, 3 and 6 inch ID
• Roll widths-1/4-3 inch common and up to 36 inches common for construction type applications
Razor SlittingRazor SlittingHighest use on thin, soft filmsHighest use on thin, soft films
Packaging tape is commonly slit by razor slitting
Compliments of Dusenbury
Shear SlittingShear Slitting
Similar to using scissors
Most expensive equipment
Most precise /clean cutting
Similar to using scissors
Most expensive equipment
Most precise /clean cutting
Compliments of Dusenbury
Foil tapes are shear slit
Slitting TechniquesSlitting Techniques
Slitting Techniques ContinuedSlitting Techniques Continued
Score CuttingScore Cutting
AKA “crush cutting”
Similar to a pizza cutter
AKA “crush cutting”
Similar to a pizza cutter
Duct, masking, foam, cloth, pipe wrap and many film tapes are slit by score
slitting
AKA “Baloney Slicer”
Used to cut log rolls
AKA “Baloney Slicer”
Used to cut log rolls
Lathe Cutting
Commonly used to slit film tapes such as PVC
Common Slitting DefectsCommon Slitting Defects
• Telescoped rolls
• Geared and Gapped rolls
• Off-core wind
• Knicked edges (carton Sealing tape)
• Core dust
• Telescoped rolls
• Geared and Gapped rolls
• Off-core wind
• Knicked edges (carton Sealing tape)
• Core dust
Have examples of each or insert picsHave examples of each or insert pics