Patent EA-002141-B1 (EA)
Title: Method for the flame-retardant processing of textile materials
Inventor: ZUBKOVA NINA SERGEEVNA
IPC: D06M15/693
Filed: 1998-02-13
Abstract: 1. Process for fire protection treatment of textile materials by imprignating the material with a fire-retardant composition, characterized in that it includes the following sequence of operations: impregnation of the material with an aqueous solution of melamine-type resin; drying of the material impregnated with this solution; impregnation of the material with an aqueous solution containing carbamide and a complex compound of the ammonium salt of amidoalkylphosphonic acid with ammonium chloride of the following formula: (I)   where R is the alkyl radical C = 1-3; drying of the material and heat treatment at a temperature of approximately 140-170 degree C. 2. Process in accordance with claim 1, characterized in that after the said heat treatment, the material is further washed and dried. 3. Process in accordance with claim 1, characterized in that a silicon-containing compound is also added to the aqueous solution of melamine-type resin. 4. Process in accordance with claim 3, characterized in that the said aqueous solution contains 20-30 g/litre of melamine-type resin and 3 0-50 g/litre of silicon-containing compounds. 5. Process in accordance with any of the preceding claims, characterised in that anion complexes of metals are also added to the aqueous solution of carbamide and Formula (I) complex compound. 6. Process in accordance with any of the preceding claims, characterized in that latexes containing fluorine are also introduced into the aqueous solution of carbamide and Formula (I) complex compound. 7. Process for fire protection treatment of textile materials, characterized in that it includes the following sequence of operations: impregnation of the material with an aqueous solution of silicon-containing compounds; drying of the material impregnated with this solution; impregnation of the material with an aqueous solution containing carbamide and a complex compound of the ammonium salt of amidoalkylphosphonic acid with ammonium chloride of the following formula: (I)   where R is the alkyl radical C = 1-3; drying of the material and heat treatment at a temperature of approximately 140-170 degree C. 8. Process in accordance with claim 7, characterized in that after the said heat treatment, the material is further washed and dried. 9. Process in accordance with claim 7 or 8, characterized in that anion complexes of metals are also added to the aqueous solution of carbamide and Formula (I) complex compound. 10. Process in accordance with claims 7-9, characterized in that latexes containing fluorine are also added to the aqueous solution of carbamide and Formula (I) complex compound. 11. Process in accordance with any of the preceding claims, characterized in that textile materials composed of natural fibres are subjected to the treatment. 12. Process in accordance with any of claims 1-10, characterized in that textile materials composed of chemical fibres are subjected to the treatment. 13. Process in accordance with any of claims 1-10, characterized in that textiles composed of mixtures of natural and chemical fibres are subjected to the treatment. 14. Composition for fire protection treatment of textile materials, characterized in that it consists of an aqueous solution containing carbamide and a complex compound of the ammonium salt of amidoalkylphosphonic acid with ammonium chloride of the following formula: (I)   where R is the alkyl radical C = 1-3. 15. Composition in accordance with claim 14, characterized in that it contains (g/litre): Formula (I) complex compound - 200-350 carbamide - 20-40 water - the remainder. 16. Composition in accordance with claim 14 or 15, characterized in that it also contains anion complexes of metals in quantity 2-10 g/litre. 17. Composition in accordance with claim 16, characterised in that the anion complexes of metals are selected from the group of anion complexes W, Zr and Ti. 18. Composition in accordance with any of claims 14-17, characterised in that it also includes latexes containing fluorine in quantity 30-50 g/litre. 19. Composition in accordance with any of claims 14-17, characterised in that is also contains a water repellent, for which purpose organosilicon substances are used. 20. Textile materials composed of natural and chemical fibres and mixtures of them, subjected to fireproofing treatment in accordance with any of claims 1-13. 21. Textile materials composed of natural and chemical fibres treated with a fireproofing composition in accordance with any of claims 14-19.