Method of sealing corrugated board

Details Method of sealing corrugated board Method of sealing corrugated board

1975-01-27

1976-08-03

Coan, James F.

93 36PC, 93 49M, 93 584, 93 59ES, B31B 120

Patent

active

039722708

ABSTRACT:
A waterproof corrugated board construction for use in the Hydro-cooling process for preparation of produce and/or fruit shipped in a container formed of the corrugated board. The box construction using the corrugated board comprises a combination of a corrugated sheet having attached to the crest of the corrugation at least one substantially flat waterproof lining with the construction also containing a coating of a deformable waterproof composition and having the edges of the corrugated sheet compressed and retained by the action of the deformable composition in an amount sufficient to seal the edges from entry of water during the Hydro-cooling process.
Also disclosed is a method for providing a liquid sealed box from the corrugated board construction. In addition, there is disclosed an improved cutting die for use in forming the waterproof box blank described herein.

REFERENCES:
patent: 1723149 (1929-08-01), Gannon et al.
patent: 2333998 (1943-11-01), Gordon
patent: 3406052 (1968-10-01), Peters
patent: 3540354 (1970-11-01), Tachibana
patent: 3603219 (1971-09-01), Hallis, Jr.
patent: 3793056 (1974-02-01), Stease

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