Dry Instant Cold Pack and Method of Use

Abstract

A dry instant cold pack includes approximately 50 g-55 g raw chemical fill materials contained in a pouch having a water filling nozzle. The raw chemical fill material is preferably ammonium nitrate, calcium ammonium nitrate (CAN) or urea, and the bag or pouch is preferably made of PE or PE Nylon. The dry instant cold pack has lower manufacturing cost and is easy to carry, transport and store. To activate and use, the user simply adds some water through water filling nozzle to produce a cooling effect within 30 seconds. The one-way nozzle prevents the water from flowing back out of the pouch.

What is claimed is: 
     
         1 . An instant cold pack comprising:
 a pouch containing a fill material capable of producing a cooling effect; and   a fill nozzle or valve in the pouch.   
     
     
         2 . The instant cold pack of  claim 1 , wherein the pouch containing the fill material is substantially flat prior to use. 
     
     
         3 . The instant cold pack of  claim 1 , wherein the pouch containing the fill material is light weight prior to use. 
     
     
         4 . The instant cold pack of  claim 1 , wherein the pouch containing the fill material does not include, a water bag. 
     
     
         5 . A method of using an instant cold pack comprising the steps of:
 adding water through a nozzle into a pouch containing a fill material capable of producing a cooling effect when mixing with water; and   applying the pouch to a treatment area.