Concrete curing blankets and anti-bacterial textile fibers

Abstract

Disclosed are concrete curing blankets of multiple layers, which combinations of materials, and provide high performance beyond 14 days of concrete curing, without having to rewet the blankets. Also disclosed are antibacterial textile fibers.

1 . A concrete curing blanket comprising:
 a contact layer including at least one nonwoven fabric, for contact with a concrete surface; a cover layer including a polymer film which functions as a water barrier; and,   a storage layer including a super absorbent polymer material for storing liquid therein, the storage layer intermediate the contact layer and the cover layer.   
     
     
         2 . The concrete curing blanket of  claim 1 , wherein the super absorbent polymer material coats fibers in a nonwoven fabric forming the storage layer, and/or is in a powder form dispersed within the fabric. 
     
     
         3 . (canceled) 
     
     
         4 . The concrete curing blanket of  claim 1 , wherein the contact layer, storage layer and cover layer are joined together by lamination with a heat activated bonding agent. 
     
     
         5 . The concrete curing blanket of  claim 1 , wherein the nonwoven fabric of the contact layer includes one or more of: polypropylene, polyethylene, polypropylene co-polyethylene, or polyacrylonitrile (PAN), Nylon, or, Polyester, fibers, and the nonwoven fabric of the storage layer includes one or more of: polypropylene, polyethylene, polypropylene co-polyethylene, or polyacrylonitrile (PAN), Nylon, Polyester fibers, Rayon, or cellulose three acetate. 
     
     
         6 . (canceled) 
     
     
         7 . The concrete curing blanket of  claim 1  wherein the nonwoven fabrics are produced by processes including: Spun bonding, Spunbonding-Meltblowing-Spunbonding (SMS), Carding, Calender Bonding, Hydro-entanglement, Air through bonding, Chemical Bonding, Airlaid processes, Needle punching, Stitch Bonding, or, Wet laid process. 
     
     
         8 . (canceled) 
     
     
         9 . The concrete curing blanket of  claim 1 , wherein the super absorbent polymer (SAP) material is selected from the group of: Sodium Polyacrylate and Sodium Polyacrylamide. 
     
     
         10 . (canceled) 
     
     
         11 . A concrete curing blanket comprising:
 a cover layer including a polymer film which functions as a water barrier; and,   a storage layer including a super absorbent polymer material for storing liquid therein and overlying a concrete surface.   
     
     
         12 . A textile comprising:
 a plurality of fibers, each fiber comprising:   at least 40 miliequvalents per Kg amino end groups and a transition metal and/or cation dispersed inside the polymer at weight contents within the range of approximately 0.10% 15.00%; and,   the fibers blended in a textile fabric at a weight content within the range of 0.015%-50.0% of the fibers of the textile fabric to render the textile as an antibacterial textile in accordance with American Association of Textile Chemists and Colorists (AATCC) 100-2012 standard.   
     
     
         13 . (canceled) 
     
     
         14 . The textile of  claim 12 , wherein said each fiber includes a transition metal cations complex formation with primary amino groups having K complexing values greater than 2,000. 
     
     
         15 . The textile of  claim 12 , wherein the content of the transition metal and/or cation in the textile fabric is within the range of approximately 5-100 ppm. 
     
     
         16 . The textile of  claim 12 , wherein the antibacterial protection of the textile fabric lasts for between 3 to 12 months. 
     
     
         17 . The textile of  claim 12 , wherein the antibacterial protection of the textile fabric lasts after 50 wash machine cycles at 60 degrees C., in accordance with the machine freshness standard of AATCC 100-2012. 
     
     
         18 . The textile of  claim 12 , wherein the complex metals or Ions are of the Nano scale sizes that is lower than 0.5 microns median dimeter. 
     
     
         19 . The textile of  claim 12 , wherein said each fiber is of Partially Oriented Yarn (POY) type of tenacity within the range of approximately 3.0-4.5 grams per dtex and elongation within the range of approximately 60%-80%. 
     
     
         20 . The textile of  claim 12 , wherein said each fiber is made of one or more of: Nylon 6.6 polymer, Nylon 6 polymer, and copolymers comprising any combination of the monomers of: Nylon 6, Nylon 10 or Nylon 12. 
     
     
         21 . The textile of  claim 20 , wherein each said fiber of Nylon 6.6 polymer or Nylon 6 polymer includes amino content greater than 70 miliequivalents per Kg. 
     
     
         22 . The textile of  claim 12  wherein said each fiber includes metal selected from the group consisting of: Copper, Silver, and silver cations. 
     
     
         23 . The textile of  claim 12 , wherein each said fiber is at least one of a thickness is within the range of approximately 0.05-8.00 dtex, or each said fiber is of a length within the range of approximately 0.1-100 mm. 
     
     
         24 . (canceled) 
     
     
         25 . The textile of  claim 12 , wherein each said fiber is in the form of a continuous yarn. 
     
     
         26 . The textile of  claim 12 , wherein each said fiber includes secondary and tertiary amino end groups.