Sounding Boards

Corrugated preprinter Inland Paperboard and Packaging solved persistent score cracking issues with Temple Premium, a clay-coated SBS developed by parent company Temple-Inland with higher soft wood content for liner grades. Mixes with higher hard wood content can cause cracking in triple-layer corrugated packages, explains Graphic Resource Center GM Terry Ong, but typically don't cause problems for single-layer folding cartons. Score cracking can also result if a board's moisture profile is below 6 percent, Ong notes. In addition, drier board will absorb water-based inks like a sponge, and expand.