The closing up of a mill’s water system, the increased use of recycled furnish, and the use of synthetic papermakingrnadditives often result in increased contaminant loading in the wet end and press section of a papermaking system.rnWet felt filling due to contaminant loading can lead to any number of problems, including poor sheet quality, lostrnproduction, unscheduled shutdowns, and increased operating costs. Additionally, the frequent use of high doses ofrnexpensive chemicals to clean wet felts can add to a mill’s operating cost while simultaneously negatively impactingrnregulatory and environmental compliance.rnIn addition to discussing traditional approaches used to treat wet felts, this paper discusses a new, environmentallyfriendlyrnpress fabric passivation technology that prevents felt filling, compaction, and excessive wear in situationsrnwhere closed water systems, recycled fiber usage, and high organic loading cause production and quality problems.
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