Soil-resistant fiber fabric and method for producing same
A soil-resistant fiber fabric having excellent water/oil repellency and excellent soil dirt resistance is obtained by fixing colloidal silica to a fiber fabric, and by subsequently treating the fiber fabric with a water/oil repellent fluorine compound, thereby having the water/oil repellent fluorine compound adhere to a surface of the fiber fabric.
1. A method for producing a soil-resistant fiber fabric, the method comprising:
fixing colloidal silica to a fiber fabric in a fixation amount of 1 to 6 g/m 2 using a mixed solution containing a binder resin and colloidal silica and having a concentration of the binder resin of 1.0 to 5.5 wt %, wherein an application amount of the binder resin to the fiber fabric is within a range of 0.1 to 3 g/m 2 (dry weight); and then
treating the fiber fabric with a water and oil repellent fluorine compound to adhere the water and oil repellent fluorine compound to the colloidal silica fixed to a surface of the fiber fabric in an adhesion amount of 0.1 to 3 g/m 2 , whereby a fluorine-based water and oil repellent group of the fluorine compound faces the outermost side of the fabric.
2. The method of claim 1 , wherein the colloidal silica has an average particle diameter of 0.01 to 1 μm.
3. The method of claim 1 , wherein the water and oil repellent fluorine compound is a fluorocarbon resin composition.
4. The method of claim 1 , wherein the binder resin is at least one selected from the group consisting of an acrylic resin, a urethane resin, and a polyester resin.