There are many paper disease will appear in paper making process, such us hole, spilt, spot, pinpoint, streak, etc, here are the reasons cause paper disease.
1. Continuous appear approve that is system problem, rolls, pump impeller, etc;
2. Random appear is the question of additive or material supply;
3. Sporadic appear is the falls of aggregates;
4. New problem: Checking the operation specification, adding mode, additive amount, equipment, employee, etc.
5. Seasonal emergence: It may be the problem of resin or microbial growth;
6. Regular intervals: Wires or paper machine felt question, or something drop on the paper.
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