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Study on the Factors Influencing the Air Permeability and Bursting Strength of Dust Collection Bag Paper
Received:April 21, 2020  
DOI：10.11980/j.issn.0254-508X.2020.09.003
Key Words:dust collection bag paper  air permeability  bursting strength  density
Author NameAffiliationPostcode
LIU Qunhua China National Pulp and Paper Research Institute Co.， Ltd.， Beijing， 100102
National Engineering Lab for Pulp and Paper， Beijing， 100102 		100102
LIU Wen China National Pulp and Paper Research Institute Co.， Ltd.， Beijing， 100102
National Engineering Lab for Pulp and Paper， Beijing， 100102 		100102
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Abstract:The effects of factors such as fiber characteristic， beating degree of the pulp， chemical fiber content， the tightness of paper， surface sizing and reinforcing agent addition in pulp on the air permeability and bursting degrees of dust collection bag paper were studied. The research showed that decreasing the pulp beating degree could effectively increase the air permeability of paper. With the beating degree decreasing from 10~11oSR to 8~9oSR， the paper air permeability increased by above 53%. The higher addition of chemical fiber would result in the increase of the air permeability of paper. With 15% addition of chemical fiber， the air permeability increased by 108%. Reducing the amount of chemical fiber by reducing the pulp beating degree was a better method with better cost performance. The bursting strength increased by 45%~55% with the density increasing from 0.3 g/cm3 to 0.4 g/cm3. With the surface sizing amount of 5 g/m2， the bursting degree increased by 80%~110%.
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