摘要
采用分散金黄E-TD、分散红3B和分散蓝2BLN染色阻燃涤纶,通过制定不同的染色工艺以及配方,探讨温度、pH、分散剂用量对阻燃涤纶染色上染率及K/S值的影响;计算3只染料在纤维上的染色速率常数,研究动力学吸附性能,并与普通涤纶纤维进行对比.结果表明：分散染料在上染阻燃涤纶纤维时,在80-100℃上染速率较快,在100℃即可达到较高的上染率,而普通涤纶需在120℃以上才能获得较高的上染率;阻燃涤纶纤维染色最适宜的pH为5;分散剂用量过高会导致染料的利用率降低;染色速率随着温度的升高而升高,染色速率常数随着温度的升高而增大.
The flame-retardant polyester fibers were dyed with disperse golden yel ow E-TD, disperse red 3B and disperse blue 2BLN through different dyeing process and formulation. The influences of dyeing temperature, pH and dosage of dispersant on the dyeing behavior of flame-retardant polyester fibers were in-vestigated, and the dye uptake and K/S values were measured. The dyeing rate constants of the three dyes in the dyeing of fibers were calculated and the kinetic adsorption was studied, which were compared with the conventional polyester fibers. The results showed that： during the dyeing of flame-retardant polyester fiber with disperse dyes, dyeing rate was high at 80-100 ℃ and the dye uptake could be high at 100 ℃, however the conventional polyester fibers need more than 120 ℃ in order to obtain a high uptake percentage. The opti-mal pH of flame-retardant polyester fiber dyeing was 5, the excess dispersant would result in lower dye utili-zation. The dyeing rate and rate constant increased with the increasing of dyeing temperature.
出处
《印染助剂》
CAS
北大核心
2014年第8期13-18,共6页
Textile Auxiliaries
基金
河南省科技厅重点攻关项目(082102280002)
关键词
分散染料
阻燃涤纶
普通涤纶
染色
动力学
disperse dyes
flame-retardant polyester fibers
conventional polyester fibers
dyeing
dynamics
