Sustainable cardboard

for packagingsturdyrecyclable

Introduction
Eredi Caimi introduces a sustainable packaging innovation: layered cardboard with a rubber-like spring effect that absorbs shocks, returns elastically and serves as an ecological replacement for expanded polystyrene and plastic foams.

Main features

• Shock absorption with controlled elastic return
• Suitable for drop tests and heavy-duty testing
• Maximum protection for delicate and high-value items
• Sustainable alternative to EPS, foam and plastic packaging materials

Application sectors

• Food and beverage
• Automotive
• E‑commerce and online retail
• Electronics
• Furniture and lighting
• Home appliances
• Lifestyle and consumer goods
• Industrial machinery
• Medical devices
• Pharmaceutical

Production process
Each project starts with a detailed analysis of the customer's requirements. Technicians develop the optimal design focusing on impact protection, handling and ease of use, and material efficiency.

• Automated lines for cutting, die-cutting and assembly in a single cycle
• High-performance bespoke components

Established applications

• Shims and shaped multilayers
• Spacers and pegs
• Supports for mechanical components
• Cradles and spare-parts trays
• Corner protectors and edge guards with spring-effect cardboard
• Reinforced edge protectors for heavy shipments
• Shaped cardboard interiors for part separation and support
• Angles and edge protectors for boxes
• Corrugated cardboard packaging for e‑commerce
• Full-cardboard or mixed cardboard-wood boxes

Adhesives and regulatory compliance
Production uses limited quantities of adhesives and complies with standards applicable in the converting sector; products conform to REACH and CLP regulations.

• Destrine glue GUMASOL 93AP: 0.9 g/piece – 0% organic solvents
• Hot melt glue GIANMELT HM/323 T: 0.1 g/piece – 0% adhesive particles
• Vinyl glue KELVIL BSL: 0.3 g/piece – approx. 2% adhesive particles, compliant with standards

EU regulations and material comparison
Under EU Regulation 2025/40, targets are set for reusable packaging and progressive restrictions on EPS. Comparative analysis of materials:

• EPS: excellent protection but difficult to recycle
• Cellulose pulp: biodegradable, requires molds
• Layered cardboard: flexible, recyclable, workable without costly molds

CONAI contribution

• Cardboard: from €65 to €45 per tonne from 1 October 2025
• Molded EPS: from €589 to €724 per tonne from 1 July 2025 (much heavier economic/environmental impact for EPS)

Conclusions
Layered rubber-effect cardboard represents a sustainable packaging solution that combines protection, shock resistance and environmental responsibility.

Technical characteristics / specifications

• Material: layered cardboard with rubber/spring effect
• Function: shock absorption with controlled elastic return
• Typical applications: drop tests, protection of delicate items, shaped interiors, corner protectors, mechanical supports
• Process: cutting, die-cutting and assembly on automated lines
• Adhesives used and indicative dosages: GUMASOL 93AP 0.9 g/piece; GIANMELT HM/323 T 0.1 g/piece; KELVIL BSL 0.3 g/piece
• Compliance: references to UNI 11743 (2019) and UNI ISO 15360-2; compliance with REACH and CLP
• Advantages: recyclable, workable without expensive molds, sustainable alternative to EPS and plastic materials