Hot Melts Hold Fast
Understanding the variables involved in pressure-sensitive label construction can help optimize labeling operations and reduce costs.
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One takeaway is clear: it is critical to maintain the nitrogen blanket to control residual oxygen. An oxygen analyzer should be installed in every siliconizing line to monitor silicone coating quality. If there is no oxygen analyzer available, major problems might be avoided with hot melts that use non-hydrogenated tackifier resins based on C5.
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Hardi Doehler
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