| 摘要 |
Method for imparting a permanent flame retardant finish to cellulose fibers and articles comprising cellulose fibers comprises swelling the fibers under alkaline conditions and then treating them with a 4,6-dichloro-1,3,5-triazin-2-ylamine (I) in an aqueous alkaline medium. Method for imparting a permanent flame retardant finish to cellulose fibers and articles comprising cellulose fibers comprises swelling the fibers under alkaline conditions and then treating them with a 4,6-dichloro-1,3,5-triazin-2-ylamine (I) of formula (Ia) or (Ib) in an aqueous alkaline medium: R<1>, R<2> = H, 1-6C alkyl, benzyl, phenyl, 2-6C w-aminoalkyl, 2-6C w-hydroxyalkyl, (CH2)mX, (CH2)nPO(OR')2, sulfamoylphenyl or trimethylammoniophenyl, or R<1>+R<2> is ethylene, trimethylene or bismrethyleneimino; X = SO3H, COOH or their amides; m = 1 or 2; n = 1-3; R' = H, Me or Et; R<3> = p- or m-phenylene, 1,4-, 1,3- or 2,6-naphthylene, 2-6C alkylene, C2H4-NH-C2H4, C2H4-NH-C2H4-NH-C2H4, C2H4-O-C2H4 or C6H4-NHCONH-C6H4; R<4> = H, 1-3C alkyl, aminoethyl or aminopropyl, or R<4>+R<4> is ethylene or propylene. An Independent claim is also included for permanently flameproofed cellulose fibers and articles comprising such fibers, in which the cellulose glucose units are of formula (IIa) or (IIb): R<5> = Cl, OH, OCell, OR<6> or NHR<6>; R<6> = a dye residue; Cell = a cellulose anhydroglucose unit; q = 0-3. |
