Paper Conditioning – Paper Prep Protocol
Great news! The blizzard conditions did not delay delivery and the paper for that hot rush order just unloaded off the truck! You need to get the stock on the press and out today! But wait….is that such a good idea? Like a fine wine that must “breathe” and a roast just out of the oven that should “rest” before slicing ~ paper needs time to “acclimate” to its environment, too! Paperboard is affected by temperature and humidity, and like a cracker or a piece of bread, it absorbs or loses moisture based on exposure to its surroundings. The seasonal extremes in humidity and temperature during transit and storage can cause converting problems. Paper runs best when it has a chance to acclimate to ideal pressroom conditions ~ generally speaking 45%-55% relative humidity and 68°-77°F.
Recipe for Success on the Press
Following these simple steps will help to avoid some of the converting challenges that are caused by extremes in relative humidity and temperature in mid-winter and mid-summer conditions.
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