Dura-Fibre, Menasha, Wis., USA, reports that many of its folding carton substrates, including Forte, Eclipse, and Blanc, now feature a kraft liner that provides enhanced wet durability, quality, and consistency. The company explains that for the folding carton industry, freeze/thaw applications are particularly challenging, as moisture can cause packaging to lose its integrity and warp or tear.
Dura-Fibre's heavy weight folding carton substrates combine the natural kraft liner with a superior print surface for excellent printability, stiffness, and tear and internal strength properties. These combinations of boards laminated together provide for superior freeze/thaw packaging applications, Dura-Fibre notes.
Compared with corrugated materials, these folding carton substrates provide improved refrigerator freeze/thaw for indirect food contact. As the company points out, corrugated materials have difficulty holding up through multiple cycles of freeze/thaw due to air trapped in the flutes. The trapped air begins to break down the flutes and glue, causing performance of the carton to fail. Dura-Fibre's substrates combine a natural kraft liner with a superior print surface for excellent printability, stiffness, and tear and internal strength properties—holding up after multiple freeze/thaw cycles.
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