Base Materials
Definition
The substrate is the carrier material supporting the adhesive, determining physical properties and applicable scenarios.
Historical Background
Early cotton cloth and paper. 1950s: BOPP film revolutionized the industry, reducing costs by 50%.
Example
Cloth tape withstands 20 kg pull; BOPP tape only 5 kg. The substrate is the skeleton of the tape.
Formula
Tape Strength = Substrate Strength x Safety Factor
Core Concepts
Balancing act: lightweight vs strong, transparent vs heat-resistant, affordable vs eco-friendly.
Extended Applications
BOPP: 60% market (packaging); PET: 150C (electronics); cloth: tear-resistant (carpet); paper: biodegradable; foam: automotive sealing.