槐米染色织物色牢度提升方法的研究

Enhancing colour Fastness of Flos Sophora Buds Dyed Fabric

本文以槐米为原料,采用水煮法从中提取色素作为天然染料,然后用直接染色法对纯棉织物进行染色,分别用交联剂CX-100和固色剂2518对染色后的棉织物进行整理,以提高染色后织物的色牢度。实验结果表明,槐米色素的最佳提取工艺为:槐米用量15g/L,在100℃下水煮60min;直接法染色时的最佳pH值为9,染色温度为90℃,染色时间为60min;交联剂处理的最佳工艺为:染色棉织物→两浸两轧(交联剂用量50g/L,轧余率60%)→预烘(70℃×3min)→焙烘(110℃×3min)。采用固色剂处理时,固色剂最佳用量为9%(o.m.f.),固色温度为50℃,时间为15min。

The pigment was extracted from flos sophora buds by water boiling method.The flos sophora buds dyes was used to dye cotton fabrics by direct dyeing method.Then the dyed fabrics were subjected to the treatments with cross-linking agent(2518)and fixing agent(CX-100)in order to enhance the colour fastness.Experimental results revealed that the optimum extraction conditions for flos sophora buds:amount of flos sophora buds 15g/L,boiling with water at 100℃;when used by direct dyeing,the optimum conditions:pH=9,dyeing at 90℃ for 60min;theoptimum crosslinking process:dyed fabrics→double-dip-double-nip(fixing agent 50g/L,pickup 60%)→pre-drying(70℃×3min)→curing(110℃×3min);the optimal fixing process:fixing agent concentration 9%(o.m.f),treating at 50℃ for 15min.