초록 ▼

A cigarette carton structure having a releasable adhesive seal to permit reopening of a temporarily sealed carton without damage to the carton. The seal includes a release coating on one of two carton surfaces to be adhesively joined. One of the surfaces may be a top flap and the other surface may b

A cigarette carton structure having a releasable adhesive seal to permit reopening of a temporarily sealed carton without damage to the carton. The seal includes a release coating on one of two carton surfaces to be adhesively joined. One of the surfaces may be a top flap and the other surface may be a closure flap. An adhesive is placed on the release coating, and the two surfaces are joined. The release coating may be a weakly cohesive material such as a metallic ink printed on the carton surface so that when the surfaces are separated, the release coating separates without damaging the carton. Alternatively the release surface can be a layer of material that adheres poorly to the adhesive, so that the adhesive readily separates from the release layer. In either case the initial temporary bonding must be sufficiently strong to allow handling, packing and unpacking of the cartons without premature opening.

대표청구항 ▼

A releasably sealed container, comprising: a carton blank having side walls, end flaps, a top flap, and an opposed closure portion for sealingly engaging said top flap; an adhesive-releasing layer formed on at least one predetermined region of one of said top flap and carton closure portion; permane

A releasably sealed container, comprising: a carton blank having side walls, end flaps, a top flap, and an opposed closure portion for sealingly engaging said top flap; an adhesive-releasing layer formed on at least one predetermined region of one of said top flap and carton closure portion; permanent adhesive means for sealing said end flaps upon assembly of said carton; a permanent adhesive layer on only said adhesive releasing layer and in an area out side of said region of the top flap and the carton closure portion opposite to said adhesive releasing layer, said permanent adhesive layer bonding to said top flap and the opposed closure portion in the region of said adhesive-releasing layer to initially releasably seal said carton closure upon closing of said top flap; wherein at least a portion of the remaining area outside of the region of said top flap and closure portion surrounding said region having adhesive-releasing layer form a permanent adhesive receiving area for permanently resealing said carton top flap to the closure after release of said initial seal.