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1. (WO1991017881) CORRUGATED BOARD MANUFACTURE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/017881 International Application No.: PCT/GB1991/000758
Publication Date: 28.11.1991 International Filing Date: 14.05.1991
Chapter 2 Demand Filed: 16.12.1991
IPC:
B31F 1/28 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
31
MAKING PAPER ARTICLES; WORKING PAPER
F
MECHANICAL WORKING OR DEFORMATION OF PAPER OR CARDBOARD
1
Mechanical deformation of paper or cardboard without removing material including combined deformation and laminating
20
Corrugating; Corrugating combined with laminating to other paper or cardboard layers
24
Making webs in which the channel of each corrugation is transverse to the web feed
26
by interengaging toothed cylinders
28
combined with uniting the corrugated webs to flat webs
Applicants:
THE LANGSTON MACHINE COMPANY LIMITED [GB/GB]; 11 Tanners Drive Blakelands Milton Keynes MK14 5LU, GB (AllExceptUS)
CAHILL, Michael, John [GB/GB]; GB (UsOnly)
STUTT, Colin [GB/GB]; GB (UsOnly)
Inventors:
CAHILL, Michael, John; GB
STUTT, Colin; GB
Agent:
HIRSH, Ivan, Yehudi ; Molins PLC Group Patent Department Haw Lane, Saunderton High Wycombe Bucks HP14 4JE, GB
Priority Data:
9010814.315.05.1990GB
9010815.015.05.1990GB
Title (EN) CORRUGATED BOARD MANUFACTURE
(FR) PROCEDE DE FABRICATION DE CARTON ONDULE
Abstract:
(EN) The invention concerns a process for manufacturing corrugated board comprising two layers of corrugated medium joined together in tip-to-tip registration between the corrugations of the two mediums, without an intermediate liner, and with at least one outer liner, the process comprising feeding webs (7) of corrugating material between respective pairs of corrugating rolls (4, 5) to form the webs into corrugated mediums, applying adhesive (32, 33) to the tips of one of the mediums to permit adhesion with the tips of the other medium, and conveying the two mediums along adjacent linear paths (23, 24) with tip-to-tip registration between the corrugations of the two mediums, while applying pressure urging the mediums into contact with one another while the adhesive is caused or allowed to set at least partially, at least one outer liner (11) being applied either before or after the corrugated mediums are conveyed along the linear paths in which the tips of their corrugations are brought together.
(FR) Procédé de fabrication de carton ondulé comprenant deux couches de papier ondulé jointes par alignement des sommets des ondulations des deux couches de papier, sans couche intermédiaire, et avec au moins une couche externe. Ledit procédé consiste à introduire des bandes de carton à onduler entre des paires respectives de rouleaux à onduler de manière à transformer lesdites bandes en carton ondulé, à appliquer de la colle sur les sommets des ondulations de l'une des bandes de carton ondulé, afin de permettre l'adhésion avec les sommets de l'autre bande de carton ondulé, et à faire passer les deux bandes de carton ondulé le long de voies linéaires adjacentes avec alignement sommet à sommet des ondulations des deux bandes de carton, tout en exerçant une pression qui place les bandes en contact l'une avec l'autre tandis que l'on permet ou active le séchage au moins partiel de la colle. Au moins une couche extérieure est appliquée soit avant, soit après le passage des bandes de carton ondulé le long des voies linéaires où les sommets de leurs ondulations sont fixés les uns aux autres.
Designated States: AU, BR, CA, DK, FI, JP, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0597840JPH05506825AU1991078741