Packaging

Abstract

A closed cell board including a core sandwiched between first and second liner sheets wherein the second liner sheet has a stronger construction than the first liner sheet, or vice versa.

What we claim is:  
     
         1 . A closed cell board including a core sandwiched between first and second liner sheets wherein the second liner sheet has a stronger construction than the first liner sheet, or vice versa. 
     
     
         2 . A method of manufacturing a protective edge from a sheet of closed cell composite board which has first and second liner sheets on either side of a core, the method comprises the step of:
 a) cutting a line through:
 the first liner sheet; and 
 the core; 
   
       of the closed cell board to form a slit that extends along, or is parallel to, a major axis of the board but wherein said slit does not penetrate the second liner sheet. 
     
     
         3 . A method as claimed in  claim 2  wherein the method comprises the further step of:
 b) folding the closed cell board along the slit to create first and second sides angled with respect to one another with the slit forming an external corner of the protective edge. 
 
     
     
         4 . A method of manufacturing a protective shroud from a sheet or strip of closed cell board which has first and second liner sheets on either side of a core the method comprises the step of:
 a) cutting at least two parallel lines through the first liner sheet and core of the closed cell board to form slits that are parallel to one common axis but wherein said slits do not penetrate the second liner sheet.   
     
     
         5 . A method substantially as described above wherein the method comprises the further step of:
 b) folding the closed cell board along each slit to create three or more sides angled with respect to one another with the slits forming an external corner or corners of the protective shroud.   
     
     
         6 . A protective shroud blank made from a sheet or strip of closed cell board which includes a first and second liner sheets on either side of a core and wherein the sheet or strip of closed cell board includes:
 two parallel slits for subsequently creating a u-shaped channel; or   three or more parallel slits for subsequently creating a sleeve; and   
       wherein the slits are cut through the first liner sheet and core of the closed cell board and wherein said slits do not penetrate the second liner sheet. 
     
     
         7 . A protective shroud blank made from a sheet of closed cell board which includes a planar surface and first and second liner sheets on either side of a core and wherein formed along at least one edge of the planar surface are:
 two parallel slits for subsequently creating a u-shaped channel; or   three or four parallel slits for subsequently creating a sleeve;   
       wherein the slits are cut through the first liner sheet and core of the closed cell board wherein said slits are parallel to said edge and wherein said slits do not penetrate the second liner sheet. 
     
     
         8 . A protective shroud made from a sheet or strip of closed cell board which includes a first and second liner sheets on either side of a core and wherein the sheet or strip of closed cell board includes:
 two parallel slits for subsequently creating a u-shaped channel; or   three or more parallel slits for subsequently creating a sleeve; and   
       wherein the slits are cut through the first liner sheet and core of the closed cell board and wherein said slits do not penetrate the second liner sheet and wherein said u-shaped channel(s) and/or said sleeve(s) have outside corner edges in the form of splits formed by folding along the parallel slits cut through the first liner sheet and core of the closed cell board. 
     
     
         9 . A protective shroud made from a sheet of closed cell board which includes a planar surface and first and second liner sheets on either side of a core and wherein formed along at least one edge of the planar surface is/are:
 at least one u-shaped channel formed from two parallel slits; and/or   at least one sleeve formed from three or more parallel slits;   
       wherein the slits are cut through the first liner sheet and core of the closed cell board wherein said slits are parallel to said edge and wherein said slits do not penetrate the second liner sheet and wherein said u-shaped channel(s) and/or said sleeve(s) have outside corner edges in the form of splits formed by folding along the parallel slits cut through the first liner sheet and core of the closed cell board. 
     
     
         10 . The use of a protective edge or protective shroud made from a sheet of closed cell board as claimed in  claim 8  or  claim 9  to protect an object or an edge of an object. 
     
     
         11 . A closed cell board container which comprises:
 at least one sleeve forming a body portion; and   at least one u-shaped channel forming a base;   
       of the container, wherein said sleeve and said u-shaped channel are formed via parallel lines cut through the first liner sheet and core of the closed cell board to form slits that are parallel to one common axis of the closed cell board and wherein said slits do not penetrate the second liner sheet, and wherein said u-shaped channel(s) and/or sleeve(s) have outside corner edges in the form of splits formed by folding along parallel slits cut through the first liner sheet and core of the closed cell board wherein said slits do not penetrate the second liner sheet. 
     
     
         12 . A protective packaging system wherein the system includes:
 at least one protective shroud as claimed in any one of  claims 6 - 9  which, in use, can protect at least an edge or side and one surface of an object.   
     
     
         13 . A protective packaging system substantially as claimed in  claim 12  wherein the protective shroud has at least planar surface and at least one edge formed as a u-shaped channel or a sleeve.