Laboratory screen slot pass-through fails to predict commercial micro-sticky deposition due to thermal softening and shear-induced particle coalescence.
Standard laboratory disintegration assesses paperboard repulpability by measuring defibering rates, fiber yield, and screen reject fractions under fixed shear.
Aqueous dispersion barrier boards outperform extruded polyolefins by delivering over 95 percent wet end fiber yield and avoiding heavy EPR penalties.
Laboratory fiber yield metrics depend on screen slot geometry and ash corrections, directly determining EPR eco-modulation fee surcharges on packaging.
Polymer barrier paperboard compliance requires passing 0.15mm laboratory slot screening with under 15 percent reject mass to prevent EPR fee penalties.
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