Standard Compliance
Packaging evaluation protocols within European environmental frameworks define the criteria for verifying that a packaging material can be recycled through available industrial collection and processing systems. Compliance with en 13430 material recyclability requires paper and board manufacturers to demonstrate that back-end repulping operations successfully recover usable cellulose fibers. The assessment evaluates fiber yield and disintegrability in water under standard pulping conditions.
This standard applies to paperboard substrates and laminated barrier structures, but excludes packages containing hazardous chemical residues.
Pulping Yield
Repulping efficiency depends on how rapidly paperboard breaks down into individual fibers during mechanical agitation in water. Under standard testing protocols for en 13430 material recyclability, sample substrates undergo pulping at specified temperature and consistency parameters to measure coarse reject percentages. Heavy wet-strength additives and dense cross-linked synthetic coatings increase screen rejects and lower overall yield.
High yield pulping produces clean aqueous slurry suitable for secondary paper making.
Contaminant Separation
Non-fibrous components attached to paperboard packaging must separate cleanly during pulping to avoid disrupting mill operations. Adhesive layers and barrier films must form large insoluble particles that screening and flotation equipment can remove efficiently. When en 13430 material recyclability is evaluated, sticky contaminants known as stickies are quantified to ensure they do not clog papermachine clothing or create visual defects in recycled sheets.
Water-soluble polymers present distinct challenges because they pass through screens into process waters. Standardized laboratory procedures establish pass criteria for acceptable contaminant levels, allowing converter operations to select compatible adhesives. Verification under this standard provides verified data for environmental claims and circular economy reporting.
