Pfas-free grain-based barrier coating for repulpable paper

Overview

Tastee Tape introduces a groundbreaking PFAS-free barrier coating designed for paper substrates, utilizing plant-derived polysaccharides. This innovative solution provides moisture and grease resistance without relying on harmful fluorinated or petroleum-based chemicals. By employing a dense cross-linked biopolymer network, the coating achieves a water vapor transmission rate (WVTR) of less than 1 g/m²/day while maintaining environmental sustainability. The coating is spray-applied using standard industrial equipment, ensuring easy integration into existing manufacturing processes. Additionally, it is completely biodegradable within 90 days, enhancing eco-friendliness and supporting sustainable product development.

Technical specifications

• Plant-derived Polysaccharide Coating: Utilizes grain-sourced film-forming polysaccharides cross-linked with food-grade catalysts.
• Application: Spray-applied to paper substrates using standard industrial nozzles.
• Barrier Performance: Targets WVTR less than 1 g/m²/day and grease resistance up to KIT 12.
• Recyclability: Maintains less than 5% non-fiber content upon repulping; hydrates and separates from cellulose fibers for easy removal.
• Biodegradability: Fully degrades within 90 days.
• Sustainability: All components are GRAS-certified bio-based and fluorine-free.
• Coating Weight: Optimized within a 30-75 g/m² basis weight window.

Technology readiness level

This technology is at TRL 4, indicating that it has been validated in a laboratory setting. Future validation includes a 12-month plan with phases focused on formulation optimization, barrier performance, and full validation for repulpability and compostability. The primary challenge is achieving the target WVTR, which is being addressed through parallel development pathways.