酸性络合染料在锦纶织物上的染色

本文以几支酸性络合染料在锦纶织物上染色为例,对染色的浴比、竭染率、上色率、助剂对染色的影响进行了研究,确定了合理的染色方法。同时对不同织物的色光、强度进行目测和电子测色的比较。结果表明:酸性络合染料的染色色光和强度目测结果和电子测色结果有很好的一致性,电子测色减少了人为误差。     

CR-39树脂镜片染色工艺的研究

介绍了CR 39树脂镜片的染色工艺,详细地介绍了有关CR 39树脂镜片着色时的拼色及拼色原理、拼色时应注意的问题以及CR 39树脂镜片染色用的分散颜料的基本性能和色光、强度、日晒牢度等染色指标以及这些指标如何指导生产和染液的配制。     

分散蓝2BLN分子异构体的分离和测定

分散蓝2BLN 是用途广泛的主色染料,具有高的日晒牢度和中等升华牢度,并有较好的染深性、匀染性和覆盖能力,染浴 pH 和温度对色光的影响较小。它常与分散黄 RGFL 和红3B 组成三原色,用以配染各种色泽。分散蓝2BLN 还可作为主色染料与活性染料等相混合,用于拼染涤/棉混纺织物,而且拼色相容性和高温高压法匀染性均好。因此,其在印染行业使用的染料中,占有重要地位。     

染料、有机颜料的应用问与答 直接混纺染料的若干应用技术（十）

问：如何防止涤/粘混纺织物分散/直接一步法染色沾色？ 答：实际生产中,用分散染料染涤纶,直接染料染粘胶,经常会产生互相沾色,尤其在同浴一步法加工时更为突出,甚至影响色光。     

分散蓝S-3R改进工艺消除三废

分散蓝 S-3R,因原料来源较多、合成工艺简单、成本低、升华牢度等较好,虽然色光偏红、日晒牢度稍低(4～5级)可作拼色使用。天津染化九厂从1973年投产,主要供分散灰S-BG 使用,当时的生产工艺如下:     

涤/棉深墨绿用分散/活性一浴法轧染的工艺探讨

多年来,涤/棉织物深墨绿在染色工艺上一般采用分散/还原一浴法或二浴法轧染及分散/还原二浴法竭染。由于棉上用染料Solanthrene绿F2F(国产还原艳绿FFB)及还原灰BG价格昂贵,因此染料成本高达40～45元/百米。后来,我们选用了还原橄榄绿B、还原蓝RSN及少量还原黄G拼色代替Solanthrene绿F2F及还原灰BG,染料成本降到23元/百米,但色光灰暗且不浓艳,尤其在一浴法轧染中,因高温焙烘使还原橄榄绿B色光变萎,还原蓝RSN常因过氧化或过还原而导致色光萎暗,工艺难以控制,前后色差大,因此我们开始寻找一种既     

一只新Remazol黄染料

德司达公司推出一只通用的和非常经济的新黄色染料:Remazol黄GN gran。该染料带绿色光,非常鲜艳,既可用作三原色拼色,也可用作翠蓝/绿色拼色染色。它     

开展全面质量管理——208酸性蓝黑10B提高质量

208酸性蓝黑系双偶氮染料,主要用于羊毛织物的染色,也大量用做拼色染料。天津市染化四厂过去为了消除废水污染,在产品质量没有保证的情况下,砍掉了生产的后处理设备—板框压滤机,致使产品质量在力度方面只达到标准的82.5%,色光较标准下降     

非离子表面活性剂作用下分散染料对棉沾色机理研究

通过研究非离子表面活性剂结构和浓度对C.I.分散红60增溶量、分散体系的高温稳定性、C.I.分散红60的上染率以及染浴中染料残留量的影响,探讨了在非离子表面活性剂作用下C.I.分散红60对棉沾色的机理。结果表明:非离子表面活性剂用量较低(0.5 g/L左右)时,分散体系有较好的高温稳定性,此时非离子表面活性剂对分散染料的增溶量为影响沾色的主要因素,分散染料的增溶有利于减少其对棉的沾色;随着非离子表面活性剂用量的增加(≥1 g/L),染料的上染百分率和分散体系的高温稳定性降低,分散染料对棉的沾色加重,沾色等级降低到2级。     

利用“优选法”对还原深灰3T染深灰色布的试验

还原深灰(又称铁灰)色布,具有坚牢度好,色泽大方的特点,深受广大群众喜爱。过去郑州印染厂利用灰BG拼棕BR染深灰色布。近年来,天津市染化八厂生产出一只还原深灰3T。他们曾利用它作过几次试验,但由于该染料黄光很大,色光十分难看,没有成功。为了广大工农兵的需要,他们又进行了多     

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。     

芳纶1313的超高温高压染色研究

本文采用超高温高压法对芳纶1313进行染色,分别研究了染料种类和染色温度对芳纶1313纱线染色日晒牢度、K/S值及染透性等方面影响,结果发现,分散染料所染纱线的各项染色性能都比阳离子染料和还原染料好;随染色温度升高,日晒牢度、纤维表面颜色深度及其纤维染透性都得到了不同程度的改善,而纱线的断裂强度随染色温度的升高变化不大。     

Application of rare earth as mordant for the dyeing of ramie fabrics with natural dyes

Selecting appropriate metallic compounds as mordants is essential for dyeing with natural dyes. This paper presents the application of rare earth compounds as mordant for the dyeing of ramie fabrics with four kinds of natural dyes. The influences of pre-mordanting, simultaneous mordanting, and post-mordanting on the dyeing effect were explored. The post-mordanting was proved to give rise to the highest dye uptake. The effects of dyeing conditions including dyeing temperature and time, dyeing bath pH and the concentration of rare earth on the dye uptake were investigated systematically. The fabrics dyed with natural dyes in presence of rare earth as mordant exhibited high color shade stability in the baths with pH varying from being acidic to neutral and alkaline. Employing rare earth as mordant apparently raised the color fastness to washing, rubbing and light of the ramie fabrics dyed with the natural extracts. In comparison with the commonly used metallic salts, using rare earth chlorides as mordants can greatly reduce the ionic concentration employed in natural dyeing. This study proved that rare earth would be a kind or promising environmentally friendly mordant in natural dyeing.     

The reduction of vat dyes by indirect electrolysis

The reduction of vat dyes by an indirect electrolytic process is described. The dyeing procedure and the relevant dyeing parameters for this new reduction technique are discussed. The dyeing results are comparable with those obtained by standard experiments using sodium dithionite. After removal by filtration techniques of the remaining dye from the exhausted dyebath, regeneration of the reducing agent by cathodic reduction is possible. The results demonstrate the applicability of this reduction method for larger-scale vat dyeing procedures.     

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)。     

直接染料对甲壳胺纤维的染色性能

探讨了中性盐、温度、染料用量对甲壳胺纤维直接染料染色性能的影响，比较了脱脂棉和甲壳胺纤维的染色性能。实验结果表明：中性盐对染料的影响与染料的磺酸基的数目有关，对4～6个磺酸基，中性盐起促染作用．对双磺酸基，起缓染作用：而在70℃时染色的上染速度明显快于40℃，染料浓度在2％时几乎尽染，当上升到8％时上染率仍在70％以上；甲壳胺纤维的上染速度和上染率明显高于棉，其可染性、染色速度、表观染色深度远高于棉易产生染色不匀现象。     

Dyeing fine denier polypropylene fibers with phenylazo- β -naphthol-containing sulfonamide disperse dyes

A series of phenylazo-β-naphthol-containing sulfonamide disperse dyes were prepared from C.I. Acid Orange 7 by successive reactions of chlorination and amination, and their chemical structures were characterized by FTIR, ¹H NMR, and mass spectrometry. The dyes were applied to coloring of knitted fabrics from fine denier polypropylene fibers by exhaust dyeing and their optimal dyeing conditions, such as dyebath pH, dyeing temperature, dyeing time, and dye concentration were investigated in detail. Then, dye exhaustion, color strength, and color fastnesses of the dyes on the fibers were assessed and summarized. In view of dye exhaustion and color strength of the sulfonamide dyes on fine denier PP fabrics, 90°C was selected as the best dyeing temperature at dye concentration below or equal to 3.0% owf. For achieving higher color strength, 130°C was the better choice when the dye concentration was above 3.0% owf. The sulfonamide dyes, especially secondary sulfonamide dyes, exhibited superior dye exhaustion and color fastnesses to washing, sublimation, and rubbing on fine denier PP fabrics in comparison to C.I. Solvent Yellow 14 bearing the same chromophore but without sulfonamide group.     

Effect of the bio-salt trisodium citrate in the dyeing of cotton

Sodium chloride and trisodium citrate have been studied as exhausting agents for dyeing bleached cotton fabrics with reactive, direct and solubilised vat dyes. The effect of dye concentration, exhausting agent concentration, dyeing time and temperature were studied and the resulting shades obtained by dyeing with trisodium citrate and sodium chloride were compared. Dye uptake values were estimated and found to be higher for trisodium citrate than for sodium chloride. The total dissolved solids content of the spent liquors was lower with trisodium citrate than with sodium chloride.     

蓝色活性染料的合成及拼混增效

本文设计合成了22只含复合双活性基的蓝色活性染料。测定了活性染料的四个特征参数S、E、R和F值,考察了染料结构与直接性的关系。测定了染料的提升力,根据染料的相容性和染料的结构特征选择拼混染料;不同类活性染料的拼混和同类活性染料的拼混都得到染深性很好的混合染料。测定了活性染料的耐碱性,耐碱性好的染料与耐碱性差的染料通过适当比例混合后,混合染料具有优异的耐碱性。     

Metal-complex Dyes for Wool and Nylon — 1930 to date

An introduction outlining the scope and limitations of this paper is followed by a brief explanation of the essential structural features of metal-complex dyes. The earliest metal-complex dyes were produced directly within the fibre material by reacting a metallisable dye with a chromium compound in situ. The first chromium complex dyes prepared in substance, were the chromium complexes containing sulpho-groups, synthesised by R Bohn of BASF, in 1912, the application of which was first made possible after the discovery by Ciba of a satisfactory dyeing process based on the use of a dyebath made strongly acid with sulphuric acid. These two classes of dye dominated the dyeing industry into the 1950s. At that time 1:2 metal-complex dyes without sulphonic acid groups but containing nonionic substituents as solubilising groups were introduced. These complexes were applicable from neutral to weakly acid dyebaths, which minimised the damage to the fibres. These dyeings were characterised by high fastness to light and wet treatments. Later, for commercial reasons, sulphonic acid groups were again introduced into the dye molecule to increase their hydrophilic properties. These dyes also have become well established as a result of the introduction of new dyeing methods and the development of dyeing auxiliaries designed to promote level dyeing. In addition to these types of metal-complex dyes, further metal-complex dyes selected from the extensive patent literature of the last 50 years because of their interesting structure are described.