Paperboard carton having an audible locking sound

Abstract

An improved recloseable paperboard package for containing a granular material, includes a container base and a lid formed from a single piece of paperboard. The container base includes a first panel which forms a locking mechanism with the lid. When the lid is closed, an audible locking sound is heard having a sound pressure level of at least about 78 dB SPL .

What is claimed is:  
     
         1 . A reclosable paperboard package for containing a granular material comprising: 
 A. a container base comprising a first panel; and    B. a lid attached to the container base by a folded hinge,    wherein the container base and the lid are formed of a single piece of paperboard,    wherein the lid and the first panel form a locking mechanism, and wherein when the closing of the lid creates an audible locking sound having a sound pressure level of at least about 78 dB SPL .    
     
     
         2 . The reclosable paperboard package of  claim 1 , wherein the locking sound has a sound pressure level of from about 80 dB SPL  to about 100 dB SPL .  
     
     
         3 . The reclosable paperboard package of  claim 1 , wherein the lid has a peak first opening strength of less than about 70 N.  
     
     
         4 . The reclosable paperboard package of  claim 1 , wherein when in the closed position after the peak first opening, the lid and the first panel are separated by a distance of from about 0.5 mm to about 15 mm.  
     
     
         5 . The reclosable paperboard package of  claim 1 , wherein the paperboard has a stiffness of from about 5 (mN)*(m) to about 80 (mN)*(m) in the cross-machine direction and a stiffness of from about 35 (mN)*(m) to about 120 (mN)*(m) in the machine direction.  
     
     
         6 . The reclosable paperboard package of  claim 1 , wherein the lid and the first panel form at least 2 locking mechanisms.  
     
     
         7 . The reclosable paperboard package of  claim 1 , wherein the locking mechanism is distal from the folded hinge.  
     
     
         8 . The reclosable paperboard package of  claim 1 , further comprising a granular detergent composition therein.  
     
     
         9 . The reclosable paperboard package of  claim 3 , further comprising a half-cut seal between the lid and the first panel.  
     
     
         10 . A reclosable paperboard package for containing a granular material comprising: 
 A. a container base comprising a first panel and a second panel distal to the first panel; and    B. a lid attached to the second panel by a folded hinge, and a half-cut seal attaching the lid to the first panel,    wherein the container base and the lid are formed of a single piece of paperboard having a stiffness of from about 5 (mN)*(m) to about 80 (mN)*(m) in the cross-machine direction and a stiffness of from about 35 (mN)*(m) to about 120 (mN)*(m) in the machine direction, wherein the lid and the first panel form a locking mechanism, wherein the lid has a peak first opening strength of less than about 70 N, wherein when in the closed position after the peak first opening, the lid and the first panel are separated by a distance of from about 0.5 mm to about 15 mm, and wherein when the closing of the lid creates an audible locking sound having a sound pressure level of at least about 78 dB SPL .