Assessment Protocol
Laboratory protocols for assessing paper-based packaging recyclability provide a harmonized framework for evaluating how materials behave during industrial repulping. The cepi recyclability test method 2022 defines the standard laboratory procedure used to determine if a paper product or packaging component can be effectively processed in a standard recycling mill. It establishes parameters for disintegration and screening to quantify the presence of non-fibrous residues.
This protocol covers only the paper-based portion of the material and does not extend to the chemical safety of the final recycled pulp.
Laboratory Simulation
The process begins with the mechanical disintegration of the sample under controlled temperature and duration to mimic the hydrapulping stage of a mill. During this phase, cepi recyclability test method 2022 requires specific water temperatures and agitator speeds to ensure consistent fiber separation. Mechanical energy is applied until the fibers release from the substrate or until the time limit reaches its end.
This step isolates the usable fibers from non-paper components like plastics or metallic coatings. Sufficient agitation is necessary to break the hydrogen bonds between the fibers without damaging the individual cellulose strands.
Reject Analysis
Quantifying the mass of non-fibrous material that remains after screening identifies the potential for mill downtime or product contamination. High levels of coarse rejects or adhesive fragments lead to a lower recyclability score under the cepi recyclability test method 2022 framework. Final results indicate whether the packaging is suitable for standard recycling circuits.
