Delayed release delivery system for laundry and other applications

Abstract

A delayed release delivery system, comprising: a container for housing contents to be delivered; wherein the container is insoluble in water and sealable and comprises one or more conditionally sealed orifices; and a sealing member for conditionally sealing the one or more conditionally sealed orifices.

We claim: 
     
         1 . A delayed release delivery system, comprising:
 a container for housing contents to be delivered, wherein the container is insoluble in water and sealable and comprises one or more conditionally sealed orifices; and   a sealing member for conditionally sealing the one or more conditionally sealed orifices.   
     
     
         2 . The delayed release delivery system of  claim 1 , wherein the container comprise a front sheet, a back sheet, edges sealing the front sheet to the back sheet and defining a cavity disposed between the front sheet and the back for holding the contents to be delivered. 
     
     
         3 . The delayed release delivery system of  claim 1 , wherein the one or more conditionally sealed orifices comprise one or more flaps. 
     
     
         4 . The delayed release delivery system of  claim 1 , wherein the one or more conditionally sealed orifices comprise at least one orifice in the front sheet. 
     
     
         5 . The delayed release delivery system of  claim 1 , wherein the one or more conditionally sealed orifices comprise at least one orifice in the front sheet. 
     
     
         6 . The delayed release delivery system of  claim 1 , wherein the sealing member comprise a water soluble sticker. 
     
     
         7 . The delayed release delivery system of  claim 6 , wherein the sticker comprises a face sheet, the backing material, and an adhesive. 
     
     
         8 . The delayed release delivery system of  claim 6 , wherein the sticker comprises a permanent acrylic adhesive, a paper backing, and a surface coat. 
     
     
         9 . The delayed release delivery system of  claim 1 , wherein the container comprises a laminate film packaging material. 
     
     
         10 . The delayed release delivery system of  claim 9 , wherein the laminate film packaging material comprises a layered structure of PET/Polyester/Polytheylene/Aluminum/polyethylene/LLDPE. 
     
     
         11 . The delayed release delivery system of  claim 1 , wherein the orifice is configured so that substantially all of the contents of the container are released upon opening of the orifice. 
     
     
         12 . The delayed release delivery system of  claim 1 , wherein a combination of mechanical force and solubility of the sticker open the orifice and spill the contents. 
     
     
         13 . The delayed release delivery system of  claim 1 , wherein the container comprises a first container and the delayed release delivery system comprises one or more additional containers for holding the same or different contents than the first container. 
     
     
         14 . The delayed release delivery system of  claim 13 , wherein the first container and the one or more additional containers are configured to burst at different delay times. 
     
     
         15 . The delayed release delivery system of  claim 13 , wherein the first container and the one or more additional containers are configured to burst at simultaneous delay times. 
     
     
         16 . The delayed release delivery system of  claim 1 , wherein the contents of the container comprise a water soluble or water dispersible powder. 
     
     
         17 . The delayed release delivery system of  claim 1 , wherein the contents of the container comprise a laundry detergent. 
     
     
         18 . A method of delayed delivery of a water soluble or water dispersible powder to an aqueous system, comprising:
 contacting the aqueous system with a delayed release delivery system, comprising:
 a container for housing the water soluble or water dispersible powder; wherein the container is insoluble in water and sealable and comprises one or more conditionally sealed orifices; and 
 a sealing member for conditionally sealing the one or more conditionally sealed orifices; and 
   applying mechanical agitation to the aqueous system.   
     
     
         19 . The method of  claim 18 , wherein the water soluble or water dispersible powder comprises a laundry detergent.