Abstract: A method for functionalising a textile substrate made of a hydrophilic material in order to impart humidity transfer properties thereto, wherein the method includes the steps of: preparing a formulation of at least one hydrophobic material containing at least one group reacting under ionising radiation; forming a discontinuous layer using the formulation on a surface of the textile substrate; and applying an ionising radiation onto the discontinuous layer in order to graft the hydrophobic material on the surface of the substrate by the reaction of the reactive groups.

Abstract: A method for grafting functional chemical groups to a textile substrate is provided, wherein the substrate is impregnated with a solution of a functional molecule, containing the functional chemical group and a group that is reactive to ionising radiation, as well as a surfactant molecule that can improve the wettability of the textile substrate by the solution. The surfactant molecule contains at least two types of groups that are reactive to ionising radiation. Subsequently, ionising radiation is applied to the impregnated textile substrate and the reaction of the reactive groups bridge-grafts the functional molecules to the surfactant molecules. A textile substrate and a battery separator grafted using the above method are also described.

Abstract: A medium for the filtration of a fluid containing molecules of a Lewis acid is described, wherein the medium comprises a fluid-porous textile substrate having molecules grafted thereto, the molecules including at least one group having the properties of a Lewis base, such that the molecules of the above-mentioned Lewis acid can be retained in the textile substrate upon complexation with the grafted groups. A method for producing one such medium and a method for removing boric acid from an aqueous solution using one such filtration medium are described.

Abstract: In order to produce a fusible interfacing, dots of a hot-melt polymer are deposited on the right side of an interfacing support selected from textile and nonwoven supports and the wrong side of the interfacing support undergoes electron bombardment. The dots of hot-melt polymer are based on at least one functionalized polymer comprising functional groups that can react with free radicals generated by the action of an electron bombardment and/or which are themselves generators of free radicals under the action of an electron bombardment. The penetration depth of the electrons into the polymer dots is adjusted to obtain self-crosslinking of said functionalized polymer over a limited thickness e with respect to the mean thickness E of the polymer dots. The functional groups preferably comprise functions containing an ethylenically unsaturated bond, for example of the acrylate, methacrylate, allyl, acrylamide, vinylether, styrene, maleic or fumaric type.

Abstract: The invention is a method of manufacturing, by friction spinning, a reinforcing thread (1) for fabric covering or a technical textile intended to be incorporated in a textile base, in which: the spinning machine (7) is supplied with a core thread (2); and simultaneously with a silver (9) of fibers (3, 4), the fibers (3, 4) being individualised and then associated with the said core thread (2). The silver (9) of fibers is formed from a mixture of hot-melt fibers (3) and high melting point fibers (4).

Abstract: In order to produce a fusible interfacing, dots of a hot-melt polymer are deposited on the right side of an interfacing support selected from textile and nonwoven supports and the wrong side of the interfacing support undergoes electron bombardment. The dots of hot-melt polymer are based on at least one functionalized polymer comprising functional groups that can react with free radicals generated by the action of an electron bombardment and/or which are themselves generators of free radicals under the action of an electron bombardment. The penetration depth of the electrons into the polymer dots is adjusted to obtain self-crosslinking of said functionalized polymer over a limited thickness e with respect to the mean thickness E of the polymer dots. The functional groups preferably comprise functions containing an ethylenically unsaturated bond, for example of the acrylate, methacrylate, allyl, acrylamide, vinylether, styrene, maleic or fumaric type.