Textiles are finished by impregnating them with an aqueous solution of a quaternary nitrogen salt of a melamine formaldehyde condensation product and decomposing the salt by subjecting the textiles to heat at temperatures above 80 DEG C. and setting the resin on the textile fibres. Methylol melamines or their alcohol reacted products are used in their uncured state in preparing the quaternary nitrogen salts, i.e. in unpolymerized or only partially polymerized products of general formula <;FORM:0587572/IV/1>; <;FORM:0587572/IV/2>; where A is -NH2, NHCH2OR or -N(CH2OR)2, B is -NH.CH2OR or -N(CH2OR)2, R1 is hydrogen or CH2OR, R is hydrogen or an alcohol forming radical, Mx represents the nucleus of a partially polymerized melamine - formaldehyde condensation product. In the alkylated products the alcohol used may be methyl, ethyl, propyl, isopropyl, butyl, isobutyl, amyl or isoamyl, but the water repellancy of the product is improved by using a higher aliphatic alcohol such as octyl, decyl, dodecyl, tetradecyl or octadecyl alcohols. Cyclo-aliphatic and aliphatic alcohols, e.g. cyclohexanol and benzyl alcohol respectively may be used. The more important classes of nitrogen bases to be condensed with the monomeric or uncured melamine formaldehyde products described above include the two of the formul <;FORM:0587572/IV/3>; <;FORM:0587572/IV/4>; where X1, X2 and X3 are alkyl radicals, Z is the residue of a pyridine base, Y is an anion, e.g. chlorine, bromine and iodine. The salts are prepared by heating the melamine-formaldehyde and tertiary nitrogen compounds together at temperatures not substantially higher than 80 DEG C., methanol or ethanol being present if desired. Salts of pyridine bases react quickly with the melamine-aldehyde condensation products at 50-70 DEG C. The salts are applied to the textiles in aqueous solution either alone or mixed with other materials, e.g. monomeric methylol melamines or their water-soluble methyl ethers, water-soluble methylol ureas, curing accelerators such as acid salts of phosphoric acid, hexamethylene tetramine, starches, gums and sulphonated oils. The textiles are impregnated by immersion, spraying or other mechanical means, then suspended in a drying oven at temperatures preferably between 240-300 DEG F. The cloth is washed with aqueous soap solution containing sodium carbonate. Cotton, linen, wool, viscose, cellulose acetate, spun rayon and silk may be satisfactorily treated as above.;FORM:0587572/IV/4>;FORM:0587572/IV/3>;FORM:0587572/IV/2>;FORM:0587572/IV/1>
纺织品通过浸渍含有三元氮盐的
三聚氰胺-
甲醛缩合物的
水溶液并在高于80摄氏度的温度下加热分解盐,使
树脂在纤维上固定。在制备三元氮盐时,使用
甲醇基
三聚氰胺或其醇反应产物的未固化状态,即在未聚合或仅部分聚合的一般式为<;FORM:0587572/IV/1>; <;FORM:0587572/IV/2>; 的产物中。其中A为-NH2,NHCH2OR或-N(CH2OR)2,B为-NH.CH2OR或-N(CH2OR)2,R1为氢或CH2OR,R为氢或形成醇基的醇,Mx代表部分聚合
三聚氰胺-
甲醛缩合物的核。在烷基化产物中,所使用的醇可以是甲基、乙基、丙基、异丙基、丁基、异丁基、戊基或异戊基,但使用较高的
脂肪醇,如
辛醇、
癸醇、
十二烷基醇、
十四烷基醇或
十八烷基醇,可以提高产品的防
水性。环烷基和
脂肪醇,例如
环己醇和
苄醇,也可以使用。要与上述单体或未固化
三聚氰胺-
甲醛产品缩合的氮碱的更重要的类别包括两种公式<;FORM:0587572/IV/3>; <;FORM:0587572/IV/4>; 其中X1、X2和X3是烷基,Z是
吡啶碱的残基,Y是阴离子,例如
氯、
溴和
碘。如果需要,可以在不高于80摄氏度的温度下将
三聚氰胺-
甲醛和三级氮化合物一起加热制备盐,
甲醇或
乙醇可以存在。
吡啶碱盐在50-70摄氏度下与
三聚氰胺-
甲醛缩合物迅速反应。这些盐可以单独或与其他材料混合在
水溶液中应用于纺织品,例如单体
甲醛三聚氰胺或其
水溶性
甲醚、
水溶性
甲醛脲、固化
促进剂,例如
磷酸的酸性盐、
六亚甲基四胺、淀粉、胶和磺化油。纺织品通过浸泡、喷涂或其他机械手段进行浸渍,然后悬挂在干燥炉中,温度最好在240-300华氏度之间。布料用含有
碳酸钠的
水性肥皂溶液清洗。棉、亚麻、羊毛、粘胶、
醋酸纤维素、人造丝和真丝都可以通过上述方法得到满意的处理。