Anti-bacterial medical waterproof material and sheet made of the same

Abstract

A waterproof material of a circular knitted fabric woven from a first yarn and a second yarn. The first yarn is a nylon filament containing ultra-micro silver ions and the second yarn is a polyester yarn. The fabric is made of approximately 20 to 40% of the first yarn and 60-80% of the second yarn. An antibacterial waterproof sheet has a multilayer construction for controlling bacterial growth, eliminating odor and resisting wear and includes a polyurethane film having an upper and lower side forming an innermost layer. A layer of polyurethane adhesive is disposed on each upper and lower side of the film. A layer of knitted material is disposed on each layer of adhesive forming opposed outer layers of the sheet. The knitted material is woven from the first yarn and a second yarn. The silver powder ions are 1 micron or less.

1 . A waterproof material comprising a knitted fabric woven from a first yarn and a second yarn, the first yarn being a nylon filament containing ultra-micro silver ions and the second yarn being a polyester yarn.  
   
   
       2 . The material of  claim 2 , wherein the fabric is made of approximately 20 to 40% of the first yarn and 60-80% of the second yarn.  
   
   
       3 . The material of  claim 1 , wherein the material has a gauge of 28 to 32 stitches.  
   
   
       4 . An antibacterial waterproof sheet made of the material of  claim 1 .  
   
   
       5 . The material of  claim 1 , wherein the silver powder ions are 1 micron or less.  
   
   
       6 . An antibacterial waterproof sheet having a multilayer construction for controlling bacterial growth, eliminating odor and resisting wear, comprising: 
 a polyurethane film having an upper and lower side forming an innermost layer;    a layer of polyurethane adhesive disposed on each upper and lower side of the film; and    a layer of knitted material disposed on each layer of adhesive forming opposed outer layers of the sheet, the knitted material being woven from a first yarn and a second yarn, the first yarn being a nylon filament containing ultra-micro silver ions and the second yarn being a polyester yarn.    
   
   
       7 . The sheet of  claim 6 , wherein the material is made of approximately 20 to 40% of the first yarn and 60-80% of the second yarn.  
   
   
       8 . The sheet of  claim 7 , wherein the material has a gauge of 28 to 32 weaves of fiber.  
   
   
       9 . The sheet of  claim 6 , wherein the polyurethane film has a thickness of about 0.05 to 0.15 mm.  
   
   
       10 . The sheet of  claim 6 , wherein the silver powder ions are 1 micron or less.