Refining top ply stock heavily while leaving base furnish coarse optimizes linerboard strength without severe wet-end dewatering penalties.
Automated optical morphology testing under ISO 16065-2 quantifies fiber shortening and hornification to control secondary substrate strength and yield.
Unwrapped recycled board stacks in subzero transit suffer rapid edge permeability degradation, demanding strict edge moisture rejection limits at goods-in.
Paperboard physical property verification requires strict ISO 187 conditioning and standardized test methods to ensure compliance and prevent customs holds.
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