Lining toilet training seat chambers

Abstract

A liner for a toilet training seat chamber and a method for manufacturing the liner are described. The liner has a cup-shaped body, sized to line a toilet training seat chamber. The material of the liner is a biodegradable and water-dispersible material. The liner allows the for easy cleaning of the toilet training seat after use.

What is claimed is:  
     
         1 . A liner for a toilet training seat chamber, the liner comprising a cup-shaped body, sized to line a toilet training seat chamber and consisting essentially of a biodegradable and water dispersible material.  
     
     
         2 . The liner of  claim 1 , wherein the material has a thickness when dry of between about 450 and 700 microns.  
     
     
         3 . The liner of  claim 1 , wherein the material has a wet tensile strength between about 100 and 350 Newton per meter.  
     
     
         4 . The liner of  claim 1 , wherein the material has a dry tensile strength between about 250 and 800 Newton per meter.  
     
     
         5 . The liner of  claim 1 , wherein the material has a basis weight between about 50 to 70 grams per meter.  
     
     
         6 . The liner of  claim 1 , wherein the material has a flush tube test-first break between about 5 and 9 turns.  
     
     
         7 . The liner of  claim 1 , wherein the material has a flush tube test-many break between about 12 and 18 turns.  
     
     
         8 . The liner of  claim 1 , wherein the body is dimensionally stable and has generally smooth perimeter walls.  
     
     
         9 . The liner of  claim 1  wherein the liner bottom defines non-planer features.  
     
     
         10 . The liner of  claim 1 , wherein the body has a ridge running around a perimeter wall of the cup-shaped body.  
     
     
         11 . The liner of  claim 10 , wherein the ridge is disposed near a midway point between upper and lower edges of the wall.  
     
     
         12 . The liner of  claim 1 , wherein the material comprises a non-woven substrate with an applied stiffening agent.  
     
     
         13 . The liner of  claim 12 , wherein the stiffening agent comprises starch.  
     
     
         14 . The liner of  claim 1 , wherein the body has an unpleated distal rim.  
     
     
         15 . The liner of  claim 14 , wherein the rim is substantially circular.  
     
     
         16 . The liner of  claim 14  wherein the rim forms a lip extending outwardly from an upper edge of a peripheral wall of the body.  
     
     
         17 . The liner of  claim 1  wherein the body has a graspable tab extending from one side of a perimeter wall.  
     
     
         18 . The liner of  claim 1  wherein the body has perimeter walls with a height of about ½ to 5 inches.  
     
     
         19 . The liner of  claim 1  wherein the body has a bottom diameter of about 5 to 7 inches.  
     
     
         20 . The liner of  claim 1  wherein the body has a total surface area of about 10 to 450 cubic inches.  
     
     
         21 . A method for making a child's potty training chamber liner, the method comprising of 
 providing a sheet of water dispersible and biodegradable material and    forming the material into a cup-shaped body sized to line a toilet training seat chamber.    
     
     
         22 . The method of  claim 21  wherein the forming process involves pressing the material into the cup-shaped body.  
     
     
         23 . The method of  claim 21  including trimming excess material from the cup-shaped body after forming.  
     
     
         24 . The method of  claim 21  further comprising applying a stiffening agent to the material.  
     
     
         25 . The method of  claim 24  wherein the stiffening agent is applied by spraying the agent as a wet dispersion onto the material, and then drying the stiffener on the material after the material has been formed.  
     
     
         26 . The method of  claim 21  further comprising: printing a pattern on the material.  
     
     
         27 . The method of  claim 26  wherein the pattern is produced from a color changing dye.