Novel Light Flame-Retardant Heat-Insulated Warm-Retention Protective Fabric and Preparation Method Thereof

A method for preparing a novel light flame-retardant heat-insulated warm-retention protective fabric, characterized by, comprising the following process steps:

• 2a. making soluble fibers and wrapped fiber into core spun yarns by one of the following spinning methods:
• ring spun core-spun spinning method, Siro-spun core-spun spinning method, compact spun core-spun spinning method, air-jet spun core-spun spinning method or friction spun core-spun spinning method, the soluble fibers are interior fiber structure of the wrapping fibers, the soluble fibers include soluble filament yarns or soluble staple fiber yarns, and are soluble PVA fibers or soluble polyester fibers, the wrapping fibers are flame-retardant fibers or cotton fibers, and the flame-retardant fibers include aramid fiber, flame-retardant viscose, flame-retardant polyester or Modacrylic;
• 2b. placing the made core spun yarns into hot water or an alkaline solution to dissolve the soluble fibers so as to prepare hollow yarns;
• Wherein, weaving the core spun yarns using colored fibers as wrapping fibers into the grey fabric by a loom;
• dissolving the soluble fibers in the grey fabric, wherein for core spun yarns made by soluble PVA fibers, the grey fabric can be placed into hot water to dissolve the soluble PVA fibers;
• for the core spun yarns made by soluble polyester fibers, the grey fabric can be placed into an alkaline solution to dissolve the soluble polyester fibers;
• the hollow yarns can be woven into a hollow yarn grey fabric by a loom for the wrapping fibers consisting of colored fibers;
• the hollow yarns can be woven into a hollow yarn grey fabric by a loom after being dyed for the wrapping fibers consisting of non-colored fibers;
• 2d. making the hollow yarn grey fabric in step 2b into the novel light flame-retardant heat-insulated warm-retention protective fabric upon finishing procedure.