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    • 57. 发明专利
    • METHOD AND APPARATUS FOR MANUFACTURING CORRUGATED CARDBOARD
    • JP2002018988A
    • 2002-01-22
    • JP2000208153
    • 2000-07-10
    • SHINKO SHIKI KK
    • SATO HIRONORI
    • B31F1/22B32B3/28B32B29/08
    • PROBLEM TO BE SOLVED: To provide a method and apparatus for manufacturing novel corrugated cardboard capable of effectively preventing the curving (warpage) of the produced corrugated cardboard. SOLUTION: The method for manufacturing the corrugated cardboard, which is equipped with a corrugating medium 3 having ridge parts 3a and trough parts 3b formed thereto, one liner 1 bonded to the corrugating medium 3 and the other liner 5 bonded to the corrugating medium 3, has a corrugating medium molding process for bonding a paper sheet becoming the corrugating medium 3 so as to alternately form the ridge parts 3a and the trough parts 3b, a liner bonding process for bonding one liner 1 to the surface of the corrugating medium 3 having the ridge parts 3a and the trough parts 3b alternately formed thereto and a liner bonding process for bonding the other liner 5 to the rear surface of the corrugating medium 3 having the ridge parts 3a and the trough parts 3b alternately formed thereto. The ridge parts 3a and the trough parts 3b formed to the corrugating medium 3 have length in the length direction of the paper sheet and both liner bonding processes are performed almost at the same time.