公开(公告)号：US3823028A

公开(公告)日：1974-07-09

申请号：US25480472

申请日：1972-05-18

Applicant: INT PAPER CO

Inventor： HAYES C ,  TANNER H ,  ARIAN C ,  MAHLER H

IPC: B05B13/06 ,  B05C7/00 ,  B05C7/04 ,  B31F1/20 ,  B31F1/28 ,  B65D65/00 ,  B65D81/00 ,  D21H20060101 ,  D21H17/06 ,  D21H17/35 ,  D21H17/37 ,  D21H17/47 ,  D21H17/57 ,  D21H17/60 ,  D21H17/66 ,  D21H23/46 ,  D21H23/68

CPC classification number: D21H23/68 ,  D21H17/06 ,  D21H17/35 ,  D21H17/37 ,  D21H17/47 ,  D21H17/57 ,  D21H17/60 ,  D21H17/66 ,  D21H17/71 ,  D21H23/46 ,  Y10T428/24711 ,  Y10T428/24727

Abstract: A BUNDLE OF CORRUGATED BOARDS, HAVING THE FLUTED CHANNELS OF THE BOARDS IN SUBSTANTIALLY UNIDIRECTIONAL ALIGNMENT THROUGHOUT THE BUNDLY IS CONTINUOUSLY ADVANCED THROUGH AN APPARATUS WHICH COMPRISES MEANS FOR SUPPORTING THE BUNDLY, MEANS FOR APPLYING A COMPRESSIVE FORCE AGAINST THE OUTER SURFACES OF THE BUNDLE TO MAINTAIN SURFACES OF ADJOINING BOARDS IN THE BUNDLE IN TIGHT ABUTMENT AS THE BUNDLY ADVANCES, WITH AT LEAST A PORTION OF THE COMPRESSION MEASN FORMING THE WALLS OF A TROUGH IN THE ZONE OF IMPREGNATION WITH THE BOTTOM OF THE TROUGH BEING DEFINED BY THE UPPER SURFACE OF THE BUNDLE; THE TROUGHT WALLS TIGHTLY ABUT AGAINST AT LEAST THE UPPER PORTIONS OF THE OUTER SURFACES OF THE BUNDLE. MEANS ARE PROVIDED FOR DELIVERING A LIQUID IMPREGNATING COMPOSITION INTO THE TROUGH AS THE BUNDLE ADVANCES THROUGH THE TROUGH. THE TROUGH COMMUNICATES WITH THE ALIGNED FLUTTED CHANNELS OR THE BUNDLE. SINCE THE INDIVIDUAL MEMBERS OF THE BUNDLE ARE TIGHTLY COMPRESSED TOGETHER, THE IMPREGNATING LIQUID FLOWS DOWNWARDLY THROUGH THE FLUTED CHANELS OF THE BOARDS WITHOUT CONTACTING THE OUTER SURFACES OF

THE INDIVIDUAL MEMBERS OF THE BUNDLE. WHEN IMPREGNATION IS COMPLETED, SEQUENTIAL MEANS ARE PROVIDED FOR: FIRST, CIRCULATING A GAS THROUGH THE FLUTED CHANNELS OF THE BOARD BUNDLY AS IT CONTINUOUSLY ADVANCES TO FLUSH OUT EXCESS IMPREGNANT; SECOND, MEANS FOR CIRCULATING A HOT GAS THROUGH THE FLUTED CHANNELS OF THE BUNDLE TO DRIVE OFF VOLATILES CONTAINED THE IMPREGNATING COMPOSITION; THIRD, CIRCULATING A SECOND STREAM OF THE HOT GAS THOUGH THE FLUTED CHANNELS OF THE DRIED BUNDLE AS IT CONTINUOUSLY ADVANCES TO EFFECTUATE CURING OF THE IMPREGNANT CONTAINED IN THE BOARDS; AND FOURTHLY, DELIVERING WATER INTO THE FLUTED CHANNELS OF THE BUNDLE AS IT CONTINUOUSLY ADVANCES IN ORDER TO HUMIDIFY THE BOARDS.