CAJ | 학술논문

为减少活性染料染色过程中无机盐的用量,用染座剂对棉织物进行改性以增加棉纤维上的染座数目.研究棉织物经染座剂改性后对活性染料染色性能的影响,包括改性对碱用量和加入时间的影响,对无机盐用量的影响,对上染速率的影响,对染色牢度、匀染性和色光的影响等.结果表明,改性棉织物对活性红 RO2 的吸附符合Langmuir 模型,Langmuir 吸附常数K和饱和吸附量S都随温度升高而降低,染座剂改性后最佳碱用量减少,碱加入时间与常规染色一致,染色时无机盐质量分数可以减少40%～60%,上染速率增加,染色牢度和匀染性有所改善,色光不受影响.
위감소활성염료염색과정중무궤염적용량,용염좌제대면직물진행개성이증가면섬유상적염좌수목.연구면직물경염좌제개성후대활성염료염색성능적영향,포괄개성대감용량화가입시간적영향,대무궤염용량적영향,대상염속솔적영향,대염색뇌도、균염성화색광적영향등.결과표명,개성면직물대활성홍 RO2 적흡부부합Langmuir 모형,Langmuir 흡부상수K화포화흡부량S도수온도승고이강저,염좌제개성후최가감용량감소,감가입시간여상규염색일치,염색시무궤염질량분수가이감소40%～60%,상염속솔증가,염색뇌도화균염성유소개선,색광불수영향.
To reduce the amount of salt in dyeing cotton with reactive dyes,the dye-site improver was used to impart cotton fibers increased dye-sites.The effects of modification with dye-site improver on the dyeability of cotton fabric were investigated,including effects on alkaline concentration and adding time,salt concentration,dye-uptake rate,color fastness,level dyeing property and hue of the dyed fabric.The results show that the absorptive behavior of the modified cotton during dyeing with Reactive Red RO2 was conformed with Langmuir-type adsorption curve,and adsorption constant(K) and saturated adsorbing capacity (S) decreased along with rising of the temperature.The dye-site improver modified cotton needed less alkaline,less salt (reduced by 40%-60% on weight ),exhibited accelerated dye uptake rate,improved color fastness and level dyeing without affecting the shade.As to adding time of alkali,it was similar to traditional dyeing process.