Sticky Notes vs. Tape Core Diameters
Comparing 2 standards across 13 specifications. 13 key differences identified.
Standard Sticky Notes (repositionable self-adhesive paper notes, invented by 3M's Art Fry and Spencer Silver as Post-it Notes in 1980) are manufactured in standardized dimensions: 3 × 3 inches (76 × 76 mm — universal square), 3 × 5 inches (76 × 127 mm — rectangular meeting memo), 1.5 × 2 inches (38 × 51 mm — mini note), and 4 × 6 inches (102 × 152 mm — lined task list).
Adhesive Tape Core Diameters are standardized inner spool dimensions governed by PSTC (Pressure Sensitive Tape Council) and ASTM D3652. Operating on two non-interchangeable industry formats: 1.0-inch (25.4 mm) cores for compact desktop tape dispensers and 3.0-inch (76.2 mm) cores for heavy commercial desk dispensers and handheld packaging tape guns.
Specification Comparison Table
13 Parameters| Parameter / Spec | ||
|---|---|---|
|
3 × 3 Inch Standard Note
|
3.0 × 3.0 in (76.2 × 76.2 mm) — the classic canary yellow square (100 sheets/pad) | — |
|
3 × 5 Inch Rectangular Note
|
3.0 × 5.0 in (76.2 × 127.0 mm) — horizontal format for meeting minutes and phone messages | — |
|
1.5 × 2 Inch Mini Note
|
1.5 × 2.0 in (38.1 × 50.8 mm) — compact size for book margin annotations and index markers | — |
|
4 × 6 Inch Lined Note
|
4.0 × 6.0 in (101.6 × 152.4 mm) — ruled lines for daily prioritized to-do task checklists | — |
|
Adhesive Chemistry
|
Pressure-sensitive acrylic copolymer microspheres (repositionable with zero paper tear) | — |
|
Adhesive Band Width
|
0.50 in (12.7 mm) wide adhesive strip along top edge (approx. 17% of sheet area) | — |
|
Standard Paper Weight
|
70 to 75 gsm uncoated bond paper | — |
|
Small Desktop Core Diameter
|
— | 1.00 in (25.4 mm inside diameter) |
|
Commercial / Industrial Core Diameter
|
— | 3.00 in (76.2 mm inside diameter) |
|
1-Inch Core Typical Tape Length
|
— | 300 in to 1000 in (7.6 m to 25.4 m) — total roll outer diameter approx. 2.0 in |
|
3-Inch Core Typical Tape Length
|
— | 1500 in to 2592 in (38 m to 66 m) — total roll outer diameter approx. 4.0 in |
|
Carton Sealing Tape Gun Core
|
— | Standard 3.00 in (76.2 mm) core for 55-yard and 110-yard packaging rolls |
|
Core Construction
|
— | Multi-ply recycled spiral-wound chipboard or molded rigid polystyrene plastic |