高RFT值活性染料—Everzol ED Dyes

Everzol ED系列染料是由台湾永光化学集团开发、具有高"一次成功率"的新型活性染料.该文介绍了该系列染料染色的工艺及配方、应用性能和实际染色结果.结果表明Everzol ED系列活性染料具有染色用盐量少、重现性优良以及高吸收、高固着的特点,是一种既经济,又符合环保要求的新型活性染料.     

永光公司推出Everzol~ FC活性染料

<正>在2015年上海国际染料展期间,台湾永光化学工业股份有限公司推出一套新型染料,名为EverzolFC。EverzolFC系列是为了解决纤维素纤维在明亮色系及色域上的缺点而设计出来的活性染料,能缩小纤维素纤维与合成纤维在高彩度明亮色系方面的差异,在配件或主体服饰上符合流行的     

活性染料染色特性十大参数分析(二)

活性染料染色特征的十大参数即S、E、R、F值,移染指数MI值,匀染因子LDF值,易洗涤因子WF值,提升力指数BDI值,无机性值/有机性值和溶解度.十大参数对于活性染料的主要性能如上染率、直接性、反应性、固色率、匀染性、重现性、拼混染料相容性和染色牢度等有重大的指导性和实用性.充分掌握了十大参数的含义和方法,对于染料生产者可以开发有用的染料和提供技术服务;对于染料应用者可以选好用好染料,提高印染织物质量.     

活性染料染色特性十大参数分析(一)

活性染料染色特征的十大参数即S、E、R、F值,移染指数MI值,匀染因子LDF值,易洗涤因子WF值,提升力指数BDI值,无机性值/有机性值和溶解度.十大参数对于活性染料的主要性能如上染率、直接性、反应性、固色率、匀染性、重现性、拼混染料相容性和染色牢度等有重大的指导性和实用性.充分掌握了十大参数的含义和方法,对于染料生产者可以开发有用的染料和提供技术服务;对于染料应用者可以选好用好染料,提高印染织物质量.     

柞丝绸B型活性染料染色性能研究

本文对柞丝绸B型活性染料染色性能进行了研究。选用三种B型活性染料,设定不同温度、盐浓度、碱剂浓度、浴比、染料浓度等工艺条件对柞丝绸进行染色,然后通过对染后纤维的色深值、染色牢度以及强力等项目的测试分析,最终推出最佳工艺条件。并通过活性染料的染色特征值与染色性能的关系,对柞蚕丝B型活性染料染色的可行性问题进行了探讨。     

活性染料在D201大孔树脂上的脱色性能

研究了活性染料KN-B,K-2BP和KN-R在D201大孔树脂上的吸附特性.结果表明,3种染料的吸附脱色率均随初始pH值降低、温度升高、染料初始浓度降低、树脂用量增加及NaCl浓度提高而增加.在pH=7和温度298K条件下,3种染料在D201上的等温吸附规律均符合Freundlich和Langmuir模型,最大饱和吸附量分别为129.38,94.79和133.28mg/g,吸附为物理性自发吸附过程.动力学实验数据用准一级和准二级模型方程处理,准一级拟合比准二级拟合更接近实验值,相同条件下3种活性染料在D201上的吸附效果为KN-RKN-BK-2BP.     

活性染料配伍因子测定及其影响因素研究

选择了9只高、中、低S.E.F.R.值的活性染料,研究了其配伍值及其影响因素。研究结果表明:染色工艺参数改变时对染料的S、MI、LDF、T50值有明显影响。高S.E.F.R.值的染料,当染色温度在30℃-70℃之间变化,染料的MI%值的变化幅度为12%-20%,并随染色温度的上升而下降,当盐的浓度变化时,MI%值变化不大,但随浴比的升高而升高;中等S.E.F.R.值的染料,染色温度对MI.%值影响不大,随染色浓度的升高而下降,盐浓度的影响较小,而随浴比的升高而上升;低S.E.F.R.的染料,随染色温度上升,染料的MI.%逐渐上升,超过50℃时有所下降,并随着染色浓度的上升而下降,盐的浓度增加MI.%下降,但随浴比的上升而增加。     

活性染料配伍因子测定及其影响因素研究

选择了9只高、中、低S.E.F.R.值的活性染料,研究了其配伍值及其影响因素。研究结果表明:染色工艺参数改变时对染料的S、MI、LDF、T50值有明显影响。高S.E.F.R.值的染料,当染色温度在30℃-70℃之间变化,染料的MI%值的变化幅度为12%-20%,并随染色温度的上升而下降,当盐的浓度变化时,MI%值变化不大,但随浴比的升高而升高:中等S.E.F.R.值的染料,染色温度对MI.%值影响不大,随染色浓度的升高而下降,盐浓度的影响较小,而随浴比的升高而上升:低S.E.F.R.的染料,随染色温度上升,染料的MI.%逐渐上升,超过50℃时有所下降,并随着染色浓度的上升而下降,盐的浓度增加MI.%下降,但随浴比的上升而增加。     

活性染料染深色莫代尔纤维

选用了EX型、BF型两类活性染料,在不同质量浓度下对莫代尔纤维进行染色。通过722型分光光度计,测出了它们的上染率、固色率及浮色量,分析比较了它们染色特征值的差异,结果表明：EX型染料比BF型染料更适合于莫代尔纤维染色。     

Hostalan活性染料用于羊毛染色的研究

引言Hostalan染料是近年来发展的一类新型毛用活性染料,用于染羊毛,可以有效的控制染料同羊毛的反应速度,获得十分理想的勾染效果。本文着重对进口的Hostalan活性染料羊毛染色的工艺因素进行了优选,测定了在最佳工艺条件下染料的上染率和固色率及pH值、温度、助剂等条件对染色工艺的影响;对染料的移染匀染性进行了考察,而且还对后处理的条件进行了研究。通过实验得出以下结论:1.Hostalan染料用于羊毛染色,其固色率一般可达80％左右,染色品色牢度高。2.用这类染料染色时,染浴的pH值应     

Equilibrium studies on the adsorption of reactive azo dyes into zeolite

Zeolite was used as a low-cost adsorbent to evaluate its ability to remove color from textile effluents. The zeolit (clinoptilolite) used in this study is a natural clay mineral from the Gbrdes region of Turkey. The adsorption of reactive dyes into zeolite was investigated by a series of batch adsorption experiments. Three reactive dyes (Everzol Black, Everzol Red, Everzol Yellow) were used in laboratory studies. Adsorption test were carried out as a function of solids concentration, conditioning time and dye concentration. The degree of hydrophilicity was found to play an important role in the uptake of reactive dyes. The adsorption results indicated that natural zeolite has a limited adsorption capacity for reactive dyes but can be distinctly improved by modifying its surfaces with quaternary amines. A comparison of natural and modified zeolites at 5% solids concentration indicated that, while the adsorption densities of dyes with natural zeolite yielded negative or slightly positive values, those with modified zeolite gave adsorption densities in the range of 2.9 to 7.6 mg/g.     

活性染料用于拉细羊毛染色的研究

研究了四类活性染料染拉细羊毛的工艺条件和十二个染色配方。与媒介染料相比，用活性染料对拉细羊毛染色可获得更好的效果。染料的溶解度、匀染性、上色率、固色率均好于媒介染料，颜色的批差小。研究结果表明：除煮呢沾色牢度外，染色羊毛的各项牢度均优于媒介染料。     

Optimal dyeing systems for resistance to the physical strength loss of the PLA/cotton blended fabric

In this study, optimization of disperse/reactive dyeing systems for resistance to the physical strength loss of Poly(lactic acid) (PLA)/cotton blended fabric was investigated. The blended fabric underwent a two‐bath, two‐stage dyeing process in which the PLA component of the blended fabric was dyed using two disperse dyes, followed by the cotton component being dyed with six reactive dyes containing different reactive groups—dichlorotriazine, monochlorotriazine, sulphatoethylsulphone, monofluorotriazine, monochlorotriazine/sulphatoethylsulphone, and monofluorotriazine/sulphatoethylsulphone groups. The optimal dyeing systems were established according to the fixation rate of the dyes, tear/tensile strength loss, and SEM micrographs of the fabric. To avoid the strength loss during the disperse/reactive dyeing process, the recommended disperse dyeing conditions were 110°C, pH 5 for 20 min, whereas the reactive dyeing conditions should be temperature ≤60°C and alkali concentration ≤3 g/L. In this regard, reactive dyes containing monofluorotriazine and monofluorotriazine/sulphatoethylsulphone groups were especially suitable for the reactive dyeing systems. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011     

活性染料对莲纤维的染色性能研究

为了了解活性染料对莲纤维的染色性能,采用单因素分析法,在改变温度、浴比、时间、元明粉浓度、纯碱浓度等工艺条件下,分别采用两种不同类型的活性染料对莲纤维进行染色,并测试其上染率、固色率、耐皂洗色牢度和耐汗渍色牢度。结果表明:活性大红X-3B上染莲纤维的最佳染色工艺为染色温度40℃,染液浴比1∶40,染色时间60 min,元明粉质量浓度20 g/L,纯碱质量浓度30 g/L;活性嫩黄X-7G上染莲纤维的最佳染色工艺为染色温度40℃,染液浴比1∶50,染色时间60 min,元明粉质量浓度10 g/L,纯碱质量浓度20 g/L;活性染料耐皂洗色牢度和耐汗渍色牢度都在3级以上。     

Reactive dyes containing a benzimidazolone residue

During the investigation of dyeing properties of reactive dyes containing a benzimidazolone residue the negative influence of salt concentration on their exhaustion was demonstrated. In the case of model dyes not containing the reactive group, change in aggregation state at various temperatures was investigated. It has been shown that the reactive dyes containing a benzimidazolone residue may undergo excessive aggregation in concentrated sodium chloride solution. This may cause difficulties in the dyeing process.     

Reactive dyeing of silk using commercial acid dyes based on a three‐component Mannich‐type reaction

Acid dyes are employed for commercially dyeing silk, which results in ionic bonds between the silk fibroin and the dye. This generally leads to low wet fastness properties for dyed silk fabrics. In this work, three commercial acid dyes with aromatic primary amine structures were selected to dye silk using a Mannich‐type reaction, resulting in improved wet fastness of dyed silk by forming covalent bonds between silk fibroin and dye. The Mannich‐type reactive dyeing was applied to silk fabrics at both 30 and 90°C in trials. Dyeing at 90°C can shorten the dyeing time compared with dyeing at 30°C, even although dye exhaustion and relative fixation at 90°C were a little lower. The dyeing process was optimised when the dyeing temperature was 90°C, dyebath pH 4, dye‐to‐formaldehyde ratio 1:30 and holding dyeing time 60 minutes. The results showed that the dye exhaustion on silk fabrics for the three aromatic primary amine‐containing acid dyes exceeded 94% and their relative fixation was over 80%. Their washing and rubbing fastness reached grade 4 or higher. Hence, the colour fastness properties of dyed silk fabrics using the Mannich‐type reactive dyeing method is superior to the conventional acid dyeing method using the same aromatic primary amine‐containing acid dyes. The Mannich‐type reactive dyeing for silk fabrics at 90°C can be developed into a novel and rapid reactive dyeing method, promising an effective dyeing process with excellent colour fastness.     

世界染料与染整工艺科技创新

根据染料母体的生物相容性论述了非诱变性染料和仿生染料在纺织纤维着色中的发展方向；论述了实现高固色率活性染料的有效途径以及通过交联染色方法实现染料与纤维近100％化学结合的可行性；介绍了环境友好染色新工艺，活性染料无盐染色，还原染料和硫化染料生化法还原或电还原法染色，非水溶剂染色以及喷墨印染技术。     

锦/棉交织物活性染料一浴法染色工艺的研究

锦纶和棉的染色性能不同，所以锦/棉交织物的同色性染色工艺较为复杂。传统的染色方法是采用分散/活性，分散/直接，酸性/活性等两浴法染色。本文用活性染料对锦/棉织物进行一浴两步法染色。选择pH值4.5-5可以对锦纶染色，在碱性条件下对锦纶不上色或轻微上色的活性染料，首先在酸性条件下对锦纶纤维染色，然后调节pH值到碱性对棉纤维染色，得到了优异的同色性。     

One‐bath dyeing of polyester/cotton blends with disperse and bis‐3‐carboxypyridinium‐s‐triazine reactive dyes. Part 2: Application of substantive reactive dyes to cotton at 130 °C and neutral pH†

An earlier paper reported that the reactive dyes (not the disperse dyes) were responsible for the inability to achieve heavy depths of shade, when dyeing polyester/cotton blends by a one‐bath process at 130 °C and neutral pH using reactive dyes containing a 3‐carboxypyridinium‐s‐triazinyl group. It was shown that the poor colour yield of the bis‐3‐carboxypyridinium‐s‐triazine reactive dyes was because of their low exhaustion level at 130 °C and pH of 7.0–7.5. We now report the synthesis and evaluation of some bis‐3‐carboxypyridinium‐s‐triazine reactive dye structures, possessing highly substantive chromophores, as a means of obtaining high colour yield, on 100% unmercerised cotton, under the specified dyeing conditions. The technical performance of these dyes under such conditions was compared with that of selected Novacron (Cibacron) LS and Procion H‐E dyes, applied under their recommended (atmospheric) dyeing conditions.     

羊毛活性/分散染料染色染料相互作用研究

在一定工艺条件下，用活性染料染羊毛，再用分散染料套染，其K／S值大于单独使用活性和分散染料染色的K／S值之和，活性染料对羊毛起到了改性作用，使分散染料染色湿牢度有显著提高。随着活性染料浓度的增加，分散染料的上染率也增加。用分散染料套染活性染料，其匀染性相对于单独使用活性染料有提高。