纤维素纤维用C.I.活性红195的染色性能研究

本文研究了CI活性红195(活性红M-3BE)在6种纤维素纤维棉麻粘胶竹纤Lyocell以及Modal纤维上的染色性能及其之间的差异,探讨了工艺因素变化(碱剂中性盐温度)对活性染料染色性能的影响,并总结出一个较优的纤维素纤维用活性染料染色的工艺     

活性染料染色进展(一)

该文系统地介绍了活性染料染色的进展,从活性染料染色的一些基本性能出发,分析了活性染料的低盐染色、受控染色、中性固色、深色品种染色、坚牢品种染色以及新纤维、非纤维素纤维和多组分纤维纺织品染色的理论、工艺、问题和发展方向.     

活性染料染色进展(二)

该文系统地介绍了活性染料染色的进展,从活性染料染色的一些基本性能出发,分析了活性染料的低盐染色、受控染色、中性固色、深色品种染色、坚牢品种染色以及新纤维、非纤维素纤维和多组分纤维纺织品染色的理论、工艺、问题和发展方向.     

硅氮系阻燃再生纤维素纤维染色工艺的研究

采用正交试验设计确定了活性红3BE、活性黄3RE、活性黑B三支染料对硅氮系阻燃再生纤维素染色的最佳工艺,比较了硅氮系阻燃再生纤维素纤维和普通再生纤维素纤维的染色性能,分析了活性染料染色对硅氮系阻燃再生纤维素纤维阻燃性能的影响。结果表明,硅氮系阻燃再生纤维素纤维的染色性能与普通再生纤维素纤维接近,色泽鲜艳且水洗色牢度优良;活性染料染色对硅氮系阻燃再生纤维素纤维的阻燃性能影响很小。     

油剂及其他助剂

20002330用多功能活性染料染色的lyocellM iosga Erwin;Am.Dyest.Rep.,1998,87,(9),p .24,26一27(英)多功能纤维一活性染料的交联性能为lyocell纤维的染色,包括绳状染色减少后原纤化提供了机会。此外,这个方法减少了纤维在使用时原纤化。在染色过程中对原纤化有益的影响不受树脂整理的影响。因为树脂整理在最后阶段执行。(张桂水)纤维素纤维染色活性染料 20002331聚丙烯纺丝油剂及润滑剂的进展N iestegge R.;Chem.Fibers Int.,1997,47,(6),p .490一491(英)文章采用了2篇参考文献,综述了聚丙烯纺丝油剂和润滑剂的要求、组成与质量评定。(…     

最近活性染料的发展及其应用

活性染料是一类有发展前途的重要染料,在纤维素纤维的染色中占有重要的地位,在聚酰胺纤维(天然和合成)的染色中越来越为人们所注目.该文从市场和环境保护的要求出发阐述了活性染料在这两种纤维中的新发展和新的应用加工.     

大豆蛋白纤维染色中的染料选择

大豆蛋白纤维的分子结构中有多种极性基团,这些基团各有吸色性,使其显示出介于纤维素纤维与化学纤维之间的染色性能。本文着重其结构对染色性能的影响,探讨现阶段那些染料适合对其染色,分析了大豆纤维染色用染料的适用性(如直接染料、活性染料、中性络合染料、酸性染料)。     

新型阳离子活性染料的合成及染色性能研究

合成了一类同时含有聚醚胺和季铵盐水溶性基团及一氯均三嗪型活性基的阳离子活性染料,并将其用于棉织物的无盐染色工艺。实验结果表明,含聚醚胺链段阳离子活性染料对纤维素纤维具有很高的直接性。在无盐染色工艺中,此类阳离子活性染料竭染率高,当染料用量为4%(o.w.f.,下同)时,染料的竭染率可达到90%以上,固色率达70%以上;染料的匀染性和色牢度性能良好。染料对棉织物的无盐染色工艺为:pH值6,室温入染后,升温至85℃保温60 min,浴比1∶30,固色剂为Na2CO3(6%,按染液重量计)。     

纤维素纤维用活性染料技术进展(续)

纤维素纤维用活性染料是当今最重要的活性染料。本文从提高固着率的技术、提高染着率的技术、提高色牢度的技术、提高匀染性和重现性的技术、开发低盐染色用染料和提高黑色活性染料的乌黑度技术等六个方面阐述了纤维素纤维用活性染料的技术进展。文中也阐述了纤维素纤维的活性染色技术的进展。它们为更快地发展纤维素纤维用活性染料指明了方向。     

纤维素纤维用活性染料技术进展

纤维素纤维用活性染料是当今最重要的活性染料。本文从提高固着率的技术、提高染着率的技术、提高色牢度的技术、提高匀染性和重现性的技术、开发低盐染色用染料和提高黑色活性染料的乌黑度技术等六个方面阐述了纤维素纤维用活性染料的技术进展。文中也阐述了纤维素纤维的活性染色技术的进展。它们为更快地发展纤维素纤维用活性染料指明了方向。     

非反应型阳离子助剂在一浴法无盐轧蒸染色工艺中的应用

使用自制的非反应型阳离子助剂对棉织物进行预处理,分别选用活性黄K-RN、活性艳红K-2BP、活性艳蓝KN-R进行一浴法无盐轧蒸染色试验.确定了阳离子助剂处理棉织物的最佳方式和使用的最佳浓度,并与常规有盐染色进行性能对比.结果表明,采用一浴法无盐轧蒸染色对染样的固色率、色光和牢度未产生影响.阳离子助剂的使用能够替代电解质的加入,染料利用率提高25％～40％.棉纤维阳离子化能够在相对较低的温度下进行,提高了该工艺的适用范围,最终达到节能减排的目的.     

Colour recipe prediction using ant colony algorithm: principle of resolution and analysis of performances

This paper presents a new method for colour recipe prediction using ant colony optimisation. Three reactive dyes, namely CI Reactive Yellow 145, CI Reactive Red 238 and CI Reactive Blue 235, were used for colour formulation. Samples of 100% cotton fabrics were used for dyeing. The objective was to assure, control and optimise the colour formulation step by determining the dyes to be applied and their respective concentrations to reproduce the desired shades. The criterion of optimisation is to minimise the colour differences [Colour Measurement Committee (2:1)] between the target colour and the colour obtained by the proposed recipe. Errors between the proposed recipe and actual concentrations are also evaluated. The developed algorithm showed good performances with small colour differences between the target and reproduced colours (all lower than 0.7).     

季铵型阳离子聚丙烯酰胺的无盐染色行为

以季铵型阳离子聚丙烯酰胺作为一种新的阳离子助剂对棉纤维进行处理,应用于活性染料无盐染色,对染色过程中染料与处理后棉纤维之间的吸附类型、吸附热力学及吸附动力学进行了研究。结果表明,无盐染色过程符合Langmuir吸附模型;吸附过程是放热自发进行的,低温有利于染料的吸附;吸附动力学符合二级动力学模型,属于化学吸附过程。与传统有盐染色结果相比,染色后的阳离子化棉纤维色深增加,染料利用率提高。     

活性黑KN-B的日晒牢度与染色工艺关系的研究

本文对活性黑KN-B(C.I.Reactive　Black 5)染纯棉织物的染料浓度,固色率和染色后处理条件与日晒牢度的关系,以及三原色拼色时对日晒牢度的影响做了探讨,同时对涤/棉织物两浴法染色的活性黑KN-B与分散蓝HBGL对其日晒牢度的影响做了研究。结果表明:活性黑KN-B染纯棉织物,其日晒牢度随染料浓度和固色率的增加而提高,且固色率为70％以上时,日晒牢度大幅度提高。染色后处理,碱剂与皂煮对日晒牢度亦有一定的影响。使用活性黑KN-B,活性红M-3BE,活性黄M-3RE拼色对织物染色时,在KN-B的浓度为1％以下,其日晒牢度随浓度的增加而下降,在KN-B的浓度超过1％时其日晒牢度随浓度的增加而升高;日晒牢度随活性红M-3BE与活性黄M-3RE的浓度的增加而增大。采用分散/活性二浴法染涤/棉织物,其日晒牢度随KN-B浓度的增加,先降低后升高,在染料浓度大于1％时,日晒牢度几乎不在变化;但其日晒牢度随分散蓝HBGL的浓度的增加而增大。     

活性染料无盐无碱染色研究

通过对活性染料染色整理一浴的工艺条件进行分析,得出最佳的染色工艺条件:浸轧(80%轧余率)→堆置(18小时~24小时)→烘干(100℃×3分钟)→焙烘(160℃×3.5分钟)→后处理。筛选出了适合染色整理一浴的活性染料:活性翠蓝、活性红HE-7B、活性黄HE-4G、活性红HE-3B。同时不仅考虑了染料浓度对皂洗后染料的提升性能、染料浓度对织物物理性能的影响,还分析了不同有机硅油柔软剂对织物的折皱恢复角和撕破强力的影响,得出用20g/L的柔软剂T689较适合该工艺。     

The use of trisodium nitrilo triacetate in the pad–steam dyeing of cotton with reactive dyes

This paper presents results on the use of trisodium nitrilo triacetate, a biodegradable alkaline organic salt, for pad–steam dyeing of cotton with reactive dyes as a replacement for conventionally used inorganic electrolyte and alkali. Two widely used dyes, CI Reactive Red 147 and CI Reactive Blue 250, were used in the study. The colour yield, dye fixation and ultimate colour fastness achieved by using trisodium nitrilo triacetate were closely comparable with those obtained by using inorganic electrolyte and alkali. The tensile breaking force and wrinkle recovery angle of the dyed fabrics were also measured and were slightly improved when using organic salt. Additionally, the dyeing effluent showed reductions in total dissolved solids content with trisodium nitrilo triacetate.     

C.I.活性蓝19及其对位异构体性能的研究二、染色性能的研究

研究了C.I.活性蓝19及其对位异构体的上色性能及固色性能,并计算出它们的直接性S、竭染率E、固色率F、反应性R值,通过比较,分析了其结构与染色性能的关系。结果发现:C.I.活性蓝19反应活性较高,固色性能较好;而C.I.活性蓝19对位异构体对纤维的亲和力较大,上色性能较好。两只染料的最终固色率接近。     

Pretreatment of cotton with poly(vinylamine chloride) for salt-free dyeing with reactive dyes

Poly(vinylamine chloride) has been investigated as a pretreatment for the salt-free dyeing of cotton with reactive dyes. Dye fixation was found to be much higher than by conventional dyeing without pretreatment, even in the presence of a large amount of salt. The influence of pretreatment conditions on dye fixation, such as pad–bake variables and the concentration of poly(vinylamine chloride), has been studied. The dyeing behaviour of CI Reactive Red 2 on pretreated cotton was examined and found to follow a Langmuir-type adsorption curve. Dyed cotton pretreated with poly(vinylamine chloride) showed excellent wash fastness and good rub fastness. It is concluded that poly(vinylamine chloride) is effective as a pretreatment for salt-free dyeing with reactive dyes.     

Reactive dyeing of cellulosic fibers: Use of cationic surfactants and their interaction with reactive dyes

Cotton fabrics were dyed with three reactive dyes, C.I Reactive Blue 263, C.I Reactive Red 269, and C.I Reactive Yellow 208, after pretreatment of the fabrics with three alkyl trimethyl‐ammonium bromides (tmabs) having 12, 14, and 16 carbon atoms in the alkyl chain. The pretreated samples were dyed with standard dyeing methods using conventional, reduced amounts of electrolyte, and no electrolyte. Pretreatment with the three cationics (tmabs) resulted in an increase in dye exhaustion with all dyes used, whereas total dye fixation was lower for both red and blue dye and equal for the yellow, when compared to the reference untreated samples dyed according to the same standard dyeing method. The interaction between dodecyl trimethyl‐ammonium bromide and the three dyes was studied and the stoichiometry of the various dye/dodecyl trimethyl‐ammonium bromide (12‐tmab) complexes formed has been deduced. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008     

Application of genetic algorithm to color recipe formulation using reactive and direct dyestuffs mixtures

Color reproduction is a science in constant development. In this article, a new model to solve the color recipe prediction problem using a genetic algorithm is proposed. The objective is to optimize the color recipe prediction stage by determining the dyes to use in a mixture and their respective proportions to reproduce the target color. Two ranges of dyes were used for dyeing 100% cotton woven fabrics: three reactive dyes (CI Reactive Red 238, CI Reactive Yellow 145, and CI Reactive Blue 235) and four direct dyes (CI Direct Orange 34, CI Direct Red 227, CI Direct Blue 85, and CI Direct Black 22). The criterion of optimization, in reproducing the desired shades, is to minimize the CMC color difference between the desired reference color and the color resulting of the predicted recipe. The proposed algorithm revealed good results with small CMC color differences between target and reproduced colors. The effectiveness of the algorithm was also evaluated and proven by calculating errors between the predicted concentrations in the proposed recipes and the actual concentrations.