EP0532813B1 - Structure de plaque de carton ondulé à triple cannelures - Google Patents

Structure de plaque de carton ondulé à triple cannelures Download PDF

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Publication number
EP0532813B1
EP0532813B1 EP91420334A EP91420334A EP0532813B1 EP 0532813 B1 EP0532813 B1 EP 0532813B1 EP 91420334 A EP91420334 A EP 91420334A EP 91420334 A EP91420334 A EP 91420334A EP 0532813 B1 EP0532813 B1 EP 0532813B1
Authority
EP
European Patent Office
Prior art keywords
thickness
layers
corrugated cardboard
sheet
inner layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91420334A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0532813A1 (fr
Inventor
Jacques Petiard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CELTA
Original Assignee
CELTA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CELTA filed Critical CELTA
Publication of EP0532813A1 publication Critical patent/EP0532813A1/fr
Application granted granted Critical
Publication of EP0532813B1 publication Critical patent/EP0532813B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30Multi-ply
    • D21H27/40Multi-ply at least one of the sheets being non-planar, e.g. crêped

Definitions

  • the present invention is in the field of laminate products, and more particularly relates to a triple corrugated corrugated cardboard plate.
  • the object of the present invention is in particular to increase the overall rigidity of a corrugated cardboard sheet of this type.
  • a corrugated board of the kind in question is characterized in that the outer layers are thinner than the inner layer.
  • the outer layers are of substantially equal thicknesses, while the thickness of the inner layer is at least equal to half the total thickness of said corrugated cardboard plate.
  • the thickness of any of the outer layers is at most equal to half the thickness of the inner layer, and by substantially equal thicknesses is meant that the ratio between the thickness of a of the outer layers and the thickness of the other outer layer is between 0.75 and 1.35.
  • the thickness of the internal layer is equal to 6.5 millimeters and the thickness of the plate is equal to 12 millimeters, the external layers having a thickness in the order of 3 millimeters.
  • the thicknesses of the strata the plate of the invention preferably meet the definitions given above, namely: 0.75 ⁇ e1 / e3 ⁇ 1.35 and e2 ⁇ E / 2 Thanks to the characteristic arrangement of the invention, a considerable increase in the flexural strength has been observed.

Landscapes

  • Laminated Bodies (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
EP91420334A 1990-08-31 1991-09-18 Structure de plaque de carton ondulé à triple cannelures Expired - Lifetime EP0532813B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9011051A FR2666356A1 (fr) 1990-08-31 1990-08-31 Structure de plaque de carton ondule a triple cannelures.

Publications (2)

Publication Number Publication Date
EP0532813A1 EP0532813A1 (fr) 1993-03-24
EP0532813B1 true EP0532813B1 (fr) 1995-07-19

Family

ID=9400115

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91420334A Expired - Lifetime EP0532813B1 (fr) 1990-08-31 1991-09-18 Structure de plaque de carton ondulé à triple cannelures

Country Status (5)

Country Link
EP (1) EP0532813B1 (enrdf_load_stackoverflow)
AT (1) ATE125319T1 (enrdf_load_stackoverflow)
DE (1) DE69111447T2 (enrdf_load_stackoverflow)
ES (1) ES2075393T3 (enrdf_load_stackoverflow)
FR (1) FR2666356A1 (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ245923A (en) * 1993-02-17 1996-05-28 Print Ueb Ltd Panel formed from large pitch and depth corrugated board between liners; details of corner construction between such panels

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR804234A (fr) * 1935-03-26 1936-10-19 Produit en papier à plusieurs couches et son procédé de fabrication
GB793011A (en) * 1953-06-10 1958-04-09 Augustus Gordon Elliott Improvements in and relating to the manufacture of corrugated sheeting from paper
NL283569A (enrdf_load_stackoverflow) * 1961-10-19 1900-01-01
FR1488484A (enrdf_load_stackoverflow) * 1965-07-21 1967-11-02
US3616163A (en) * 1969-07-18 1971-10-26 Atton Box Board Co Corrugated fiberboard
DE2108658A1 (enrdf_load_stackoverflow) * 1971-02-24 1972-09-07
DE2458260A1 (de) * 1974-12-10 1976-06-16 Karlheinz Schulz Bauelement

Also Published As

Publication number Publication date
ATE125319T1 (de) 1995-08-15
ES2075393T3 (es) 1995-10-01
FR2666356B1 (enrdf_load_stackoverflow) 1995-01-27
FR2666356A1 (fr) 1992-03-06
EP0532813A1 (fr) 1993-03-24
DE69111447D1 (de) 1995-08-24
DE69111447T2 (de) 1996-03-21

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