PITCH TROUBLE ON CYLINDER MACHINE
1949 Volume 3 Issue 3 Pages 2-8,52
Details
1949 Volume 3 Issue 3 Pages 2-8,52
The more pitch trouble was experienced by cylinder machine than by the fourdrinier during the season of June-Sept. last year at Geibo mill of Nippon Shigyo K.K. The actual condition of pitch trouble at the mill and the extent of damages are described. As possible preventives, the uses of alum cake and infusorial earth in the beater are suggested. Some of the measures being adopted at Geibo mill are as follows.
1) Elimination of pitch trouble by means of saponification and washing of resin from the wet pulp in the digester.
2) Addition of 5-10% talc or clay.
3) Addition of 14% alum cake.
