Partially coated two-piece tinplate can

Abstract

A two-piece can ( 10 ) having a can body drawn from a tinplate. The can body having an end wall ( 12 ) and an integral side wall ( 14 ) which extends from the periphery of the end wall ( 12 ) to a terminal portion defining a mouth of the body. The can body is provided with a coating ( 24 ) such that the end wall ( 12 ) of the can body being substantially covered with coating ( 24 ) and the side wall ( 14 ) of the can body being substantially an exposed tin surface.

1 . A can body drawn from a tinplate to comprise an end wall and an integral side wall, the side wall extending from the periphery of the end wall to a terminal portion defining a mouth of the body, wherein
 at least 25% of the end wall interior surface area is covered with a coating and more than 50% of the side wall interior surface area comprises an exposed tinplate surface.   
     
     
         2 . A can body as claimed in  claim 1  wherein between 75% and 100% of the end wall interior surface area is covered with a coating. 
     
     
         3 . A can body as claimed in  claim 1  wherein the coating on the end wall is located centrally and extends radially from the centre of the end wall. 
     
     
         4 . A can body as claimed in  claim 1  wherein the side wall is provided with a coating material, the coating material covering 0 to 20% of the interior surface area of the side wall. 
     
     
         5 . A can body as claimed in  claim 4  wherein the side wall coating forms is applied with an annular ring of coating adjacent to the terminal portion. 
     
     
         6 . A can body as claimed in  claim 4  wherein at least a portion of the coating on the side wall is deposited in an annular ring located at 50% of the height of the side wall. 
     
     
         7 . A can body as claimed in  claim 4  wherein at least a portion of the coating material is deposited in the part of the side wall adjacent to the end wall. 
     
     
         8 . A can body as claimed in  claim 1  wherein the side wall is provided with at least one bead and the interior surface of the side wall is provided with an annular ring of coating over the inner surface of the bead. 
     
     
         9 . A can body as claimed in  claim 1  wherein the side wall is provided with a plurality of beads and the interior surface of the side wall is provided with an annular ring of coating over the inner surface of at least one of the plurality of beads. 
     
     
         10 . (canceled)