Kuraray’s ‘PLANTICTM’ Bio-Based Resin Integrates with Mica Corp.’s Water-Based Primer to Develop Recyclable High-Barrier Paper Packaging

July 19, 2026

TAPPI.org International（Japan, USA）

Overview

Kuraray’s advanced bio-based resin, PLANTICTM, and Mica Corporation’s water-based primer technology have integrated to successfully develop recyclable high-barrier paper-based flexible packaging. This collaborative innovation offers a sustainable alternative to conventional multi-layer plastic structures, maintaining essential oxygen and moisture barrier properties for food and consumer goods while significantly reducing plastic use and environmental impact. The technology provides a practical pathway to meet sustainability targets and comply with stringent regulatory requirements.

In Depth

Key Findings

A groundbreaking development has emerged from the integration of Kuraray’s high-performance bio-based resin, PLANTICTM, and Mica Corporation’s water-based primer technology: the creation of recyclable high-barrier paper-based flexible packaging. This collaborative innovation offers a sustainable alternative to conventional, complex multi-layer plastic structures. It effectively maintains the critical oxygen and moisture barrier properties essential for packaging food and consumer goods, while simultaneously achieving a significant reduction in plastic usage and associated environmental impact. This marks a practical and viable path for the packaging industry to meet ambitious sustainability goals and comply with increasingly stringent regulatory requirements.

Technical Details

Traditional flexible packaging often relies on laminating multiple plastic layers, each with distinct functions, to achieve required performance characteristics such as barrier properties, mechanical strength, and heat sealability. However, these multi-layer structures are notoriously difficult to recycle, contributing significantly to the global plastic waste problem. The core of this joint development lies in the following technical breakthroughs:

Adoption of PLANTICTM: Kuraray’s PLANTICTM is a biomass-derived polyamide resin that combines high barrier performance with excellent processability. This enables enhanced strength and gas barrier properties in packaging materials and contributes to reducing the carbon footprint due to its bio-based origin.
Mica Corporation’s Water-Based Primer Technology: Mica Corporation provides specialized water-based primer technology designed to improve adhesion between paper and plastic layers. This primer firmly bonds high-functional resin layers, such as PLANTICTM, to a recyclable paper substrate while allowing the final packaging material to be recycled as paper. Being water-based, it also minimizes VOC (Volatile Organic Compound) emissions during the manufacturing process.
Maintenance of High Barrier Performance: Crucially, this paper-based structure delivers equivalent oxygen and moisture barrier performance to conventional multi-layer plastic packaging. This is vital for extending the shelf life of food products and maintaining their quality.

This integrated approach ensures that the packaging material can be recycled as a single-material stream, facilitating processing within existing paper recycling infrastructures.

Background & Industry Context

Global awareness of plastic waste issues is growing, leading to strengthened regulations on single-use plastics in many countries and regions. Brand owners and retailers face increasing pressure to reduce plastic content in their packaging and transition to recyclable materials. While paper-based packaging is an attractive eco-friendly option, its standalone barrier performance has been a significant limitation. This partnership between Kuraray and Mica Corporation bridges that technical gap, providing the market with a high-performance, recyclable paper packaging solution that meets current demands.

Strategic Significance & Outlook

The advent of this recyclable high-barrier paper-based flexible packaging has the potential to introduce a significant paradigm shift in the packaging industry. Its adoption is anticipated across all sectors where barrier performance is critical, including food, beverages, pharmaceuticals, and cosmetics. For investors, this creates new investment opportunities in companies providing sustainable packaging solutions. For engineers and researchers, it will stimulate further innovation in the integration of bio-based materials and recycling technologies. Ultimately, this development is expected to be a crucial step towards realizing packaging that is less reliant on plastics.

Source: https://www.tappi.org/event/calendar/all-events/high-barrier-bio-based-resin-and-water-based-primer-integration-for-recyclable-packaging-webinar/

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