公开(公告)号：US3790399A

公开(公告)日：1974-02-05

申请号：US3790399D

申请日：1971-09-30

Applicant: INT PAPER CO

Inventor： WAGERS W ,  FRAPPIER R ,  TANNER H

IPC: B31F1/28 ,  B31F1/32 ,  D21B1/10

CPC classification number: D21H23/46 ,  B31F1/2827 ,  D21H5/0042 ,  Y10T156/1002 ,  Y10T156/1005 ,  Y10T156/1025

Abstract: A corrugated core paperboard in which the edges of the the core convolutions are sealed by method and apparatus for preparing a film of thermoplastic material along the board edges; the method including the steps of feeding the board along a path, passing the edge of the board through an applicator and applying a film of thermoplastic material to the board edge as the edge passes through the applicator; the apparatus including driven belts between which the board is fed in a path, an applicator along the edge of the path and means for feeding thermoplastic material to the applicator.

Abstract translation: 波纹芯纸板，其中通过用于沿着板边缘准备热塑性材料的膜的方法和装置密封芯圈的边缘; 所述方法包括以下步骤：沿着路径馈送所述板，使所述板的边缘通过施加器，并且当所述边缘通过所述施加器时，将热塑性材料膜施加到所述板边缘; 所述设备包括驱动带，所述板在所述驱动带之间沿路径进给，沿所述路径的边缘施加所述施加器，以及用于将热塑性材料供给到所述施加器的装置。

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.

公开(公告)号：US3788920A

公开(公告)日：1974-01-29

申请号：US3788920D

申请日：1971-07-15

Applicant: INT PAPER CO

Inventor： FRAPPIER R ,  TANNER H ,  WAGERS W

IPC: B31F1/28 ,  B31F1/00 ,  B32B3/04 ,  B32B31/18

CPC classification number: B31F1/2827 ,  Y10T156/1011 ,  Y10T156/1059 ,  Y10T156/1064 ,  Y10T428/24777

Abstract: A method for making corrugated core paperboard in which the edges of the facing sheets are rolled inwardly toward each other and tucked into the end of the corrugated core convolutions to form an enclosure thereof; including feeding the board along a path, slitting the end of the core by cutting or crushing the core along a line intermediate the facing sheets and rolling and tucking the end edges of the facing sheets into the slit, the apparatus including driven belts between which the board is fed along a path, a knife support along the edge of the path through which the edge of the board is fed and dies having edge engaging surfaces for rolling and tucking the ends of the facing sheets into the core.