An Improvement in Operation and the Quality of the Product by Renewing the Winding Drums

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  • ワインダードラム更新による品質および操業性の改善
  • ワインダードラム コウシン ニ ヨル ヒンシツ オヨビ ソウギョウセイ ノ カイゼン

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<p>PM8 in the HOKUETSU KISYU Niigata Mill is producing A2 grade coated paper and has two JR-winders. When A2 grade coated paper was worked on these JR-winders, PM8 had been running with a few problems for many years.</p><p>The biggest problem is the groove marks on the surface of the paper. The winding drums have grooves, so when paper touches the winding drums, the grooves’ pattern transfers to the surface of paper as groove marks. These groove marks on the surface of the paper make the quality of the product go down. To prevent the incidence of these marks, we had to do some actions, for example, limiting the winding acceleration and lowering the winding nip pressures. But these actions also caused other problems in efficiency and productivity in operation.</p><p>By renewing the winding drums from the original hard steel drums to the soft covered drums, the quality of the product has been drastically improved. Efficiency and productivity in operation have also been enhanced. This renewing of the winding drums from hard roll to soft roll was the first try in Japan.</p><p>This report shows the details of the problems from which PM8 had been suffering, our work to improve these problems and what its effects were.</p>

Journal

  • JAPAN TAPPI JOURNAL

    JAPAN TAPPI JOURNAL 71 (1), 66-69, 2017

    JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY

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