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

SummarySummary

You can have the best raw

materials, best coating

application, and loose it all with

poor slitting