环保型黑色分散染料的复配及表征

本文探讨了环保型黑色分散染料的复配技术。以当前使用较广的分散黑ECT为标样,研究C.I.分散紫93、C.I.分散蓝291∶1、C.I.分散橙73以及C.I.分散橙44为原料进行复配,以求获得染色性能更为优越的复配型分散黑染料。实验表明,4支分散染料有良好的配伍性能;复配后并未产生明显的团聚现象,且粒径分布基本没有改变;复配染料的染色性能已接近于商用ECT染料,并在深度上有所提高。     

对人体有害的敏感性染料

近年,人们对染料的敏感性愈来愈重视。研究证明,不少分散染料属于敏感性染料,如C.I.分散黄3、C.I.分散橙3、C.I.分散红1、C.I.分散红17、C.I.分散蓝3、C.I.分散蓝106和C.I.分散蓝124,还有色酚AS。它们不仅能用于聚酯纤维的染色,而且还可用于聚酰胺纤维和三醋酸纤维素纤维的染色。这些染料容易从纤维上移出,对皮肤等引起敏感作用。对人体有害的敏感性染料@鹏膊~~     

吡啶酮系偶氮型分散染料结构与性能的研究 Ⅱ:吡啶酮系偶氮型分散染料结构与应用性能关系

本文对36种吡啶酮偶氮染料及C.I.分散黄119进行了砂磨处理.研究了重氮组份与偶合组份上基因与染料应用性能的关系,脱氰基吡啶酮系分散染料的固色率相对较低.对其中四种吡啶酮分散染料作了牢度测试,其值接近于C.I.分散黄119的指标.     

意大利阿克纳公司分散黄221和分散蓝344的结构剖析

前言1981年,我厂从意大利阿克纳公司引进一批染料(还原染料17只,分散染料29只),其中大部份染料可以从染料索引查到它的化学结构,但有一些品种只有索引号而无化学结构。最近几年,我厂为了搞好分散染料的色谱配套,研究新的工艺路线,剖析了阿克纳公司的两只分散染料。一个是黄色品种(C.I.分散黄221,Tersetile黄TGL),另一只是蓝     

我国专利中有关染(颜)料部分介绍

聚酯材料印染用分散染料配制品公开号 90 1045406 申请人 VEB比特费尔德化学联合公司本发明是将低共熔的混合分散染料按一定比例混合,这样的拼混染料具有高的坚牢度、好的匀染性和高的染浴吸尽率。例如,由70.42％C.I.分散黄54、28.17％C.I.分散黄13和1.41％C.I.分散橙25组成染料A;由3.23％C.I.分散黄54、32.25％C.I.分散橙25和64.52％C.I.分散红73组成染料B;由85％C.I.分散蓝19、4％C.I.分散橙25和11％C.I.分     

C．I．分散红60对聚乳酸纤维的上色研究

本文通过研究C.I.分散红60在较低温度下和一定的染浴浓度范围内对聚乳酸纤维的上色率和纤维内的染料浓度讨论了分散染料对聚乳酸纤维染色过程,并进一步探讨了分散染料对聚乳酸纤维的染色动力学.计算了不同温度下C.I.分散红60对聚乳酸纤维的分配系数K、扩散系数DT.结果证明,在分散染料对聚乳酸纤维的上色过程中,上色速率与染液中的染料浓度关系不大,同时染料的上染速率与纤维中染料浓度有关,染料分布与染色时间有关.     

分散染料粒径及分布对聚乳酸纤维混纺织物染色性能的影响

测定了C.I.分散蓝56等6种染料的上染百分率。系统地研究了影响C.I.分散蓝56分散稳定性的因素。测定了染料颗粒重量平均粒径Dw,重量比表面积Sw。应用JL9200激光粒度仪,测试进口DyStar Dianix嫩黄XF染料平均粒径约为0.85μm;染料颗粒粒径分布服从正态分布,粒径小于0.98μm的染料颗粒约占85%。对比两种国产染料的粒径测试发现都在1.6μm以上,累积平均粒径基本在8～10μm之间,是进口染料9倍,且分布不均匀。通过研究分散染料粒径与染色性能关系,选取了球磨工艺条件,得到均匀稳定分散染料液体。用研磨改进细度后分散染料染色,上色率平均提高7%以上。     

浙江艳棱股份有限公司开发1,8系列蒽酮型分散染料产品

浙江艳棱股份有限公司是专业生产分散染料的厂家。近年来,根据染料市场对1,8系列蒽醌型分散染料的迫切需求,该公司采用先进的蒽醌硝化分离技术,成功开发了1,8系列蒽醌型分散染料新品种,除已投产的C.I.分散蓝77、81以外,正在开发的尚有C.I.分散蓝27、54等产品。 C.I.分散蓝77是由1,8-二羟基4,5-二硝基蒽醌与苯胺缩合而成,该染料在英国和希腊有生产,商品牌号为Serilene Blue BF-LS(YCL)、Vioperse Blue BF-LS(VIO)。染色强度≥500％。C.I.分散蓝77有优良的耐晒牢度等应用性能,可用于汽车装     

C.I.分散黄27性能研究

为提高C.I.分散黄27的提升力,探究了染料商品化加工过程中,助剂对染料提升力等染色性能的影响。结果表明,助剂A和木质素按1∶10复配、经2.5 h砂磨处理后得到的色浆,经筛网过滤、喷塔喷干制成染料产品,可提高C.I.分散黄27的提升性能。染料还具有良好的扩散性、分散性、高温分散稳定性及良好的耐碱和耐氧化性。     

不同分散染料微胶囊的制备及应用

采用原位聚合法进行双层造壁，对不同结构的分散染料进行胶囊化。将分散染料高速均化后，在pH=4～6时加入TMM，65℃保温1．5小时，再滴加一定量PEHMM，在75℃时保温2.5小时进行双层造壁、C.I.分散橙30染料胶囊的粒径平均值为13．53μm，中值8．732μm；C.I．分散蓝56微胶囊粒径平均值为36.3μm，中值24.87μm。胶囊染色结果显示：这两只染料性能优于传统染料，染色后其废液的吸光度分别为0.021和0.003，比传统染色废水的1.286和0.786低很多。     

分散黄棕SE-2RLM增效效应的研究

本文研究了C. I. 分散橙30与C. I. 分散橙76相混合(分散黄棕SE-2RLM)的增效效应。通过熔点图、上染量和提升力的测定,确证了分散黄棕SE-2RLM存在增效效应。分散黄棕SE-2RLM为一具有最低共熔点的共熔物。最低共熔组成的分散黄棕在聚酯纤维上具有最大的上染量,该组成的分散黄棕在原染料强度、提升力、热熔曲线、pH依存性和升华牢度等。方面明显地优于两组份染料。或两组份染料之一。     

Monolayer Studies of the Mechanism of Disperse Dyeing*

The Langmuir film balance and the Davies surface-film viscous traction apparatus have been used with films of cellulose triacetate alone and in presence of two different disperse dyes; these were C.I. Disperse Red 13, an azo dye having both proton-donating and proton-accepting groups in its molecule, and C.I. Disperse Yellow 13 (methoxybenzanthrone), which has only proton-accepting groups. The results show that a 1:1 complex is formed between either dye molecule and a hexa-acetylcellobiose unit of the cellulose triacetate molecule, and possibly also a complex with an aggregate of the yellow dye. This indicates a face-to-face association of the dye molecules (which are planar) with cellulose acetate. The association is probably a hydrogen-bonding interaction.     

利用1-氨基蒽醌废渣制备分散染料的研究

以1-氨基蒽醌生产过程中产生的废渣为原料,不需分离提纯直接制备出分散紫、分散红棕、分散黄和分散蓝等染料品种。介绍了这些染料的制备方法,指明了该方法的工业化优势。     

Investigation of Factors Affecting the Particle Properties of C.I. Disperse Yellow 3

The importance of particle size, shape and crystal form of pigments and disperse dyes is discussed. Methods for controlling the particle properties of insoluble azo colorants are outlined. A detailed account of the use of surface-active agents and the effects of coprecipitation of related azo compounds in controlling the particle properties of C.I. Disperse Yellow 3 is given.     

Preparation of Aqueous Nanodispersions of Disperse Dye by High-Gravity Technology and Spray Drying

Disperse dyes are poorly water-soluble and difficult to stably disperse in an aqueous medium, which greatly limits their application in dyeing synthetic fibers. Micronization can solve this problem. Herein, a facile way to prepare stable aqueous nanodispersions of disperse dye (C.I. disperse yellow 54) is presented by combining high-gravity antisolvent precipitation in a rotating packed bed (RPB) with spray drying. The as-prepared product had an average particle size of 120 nm, which could be readily redispersed in water. Compared with raw dye, the wettability and dispersibility of disperse dye nanoparticles were remarkably improved. Furthermore, the dyeing properties of the nanodispersions were obviously better than those of the commercial dye, which was micronized by ball milling.     

九种致癌染料剥色工艺的优化

针对纺织品上可能存在的九种致癌染料(C.I.酸性红26、C.I.分散橙11、C.I.分散黄3、C.I.分散蓝1、C.I.直接蓝6、C.I.直接黑38、C.I.直接红28、C.I.碱性红9、C.I.碱性紫14),本文研究并比较了不同剥色工艺对不同致癌染料剥色效果的影响.并提出选用加入尿素的甲醇作为剥色剂,使用超声功率为100W的超声波在70℃处理30分钟可以获得比较理想的剥色效果.     

棉热转移印花用分散染料的研究

本文从蒽醌型分散染料在纯棉织物上的热转印机理出发,并结合皂洗变色原因和蒽醌型分散染料的结构特点,对现有的蒽醌型红色分散染料C.I.分散红60进行改性,将它们应用于纯棉织物的热转印,评定皂洗等级,确定了较好的改性结构,初步试制出了适合于棉转印的品红分散染料.     

VIS absorption spectrophotometry of disperse dyes

In the investigations of the dyeing processes, the low solubility of disperse dyes in water represents a practical problem for the determination of dye concentration in dyebaths and waste waters. Therefore the use of an organic solvent which, dissolves disperse dyes, is recommended in visible spectrophotometry of disperse dyes. Three organic solvents (ethanol, N,N-dimethylformamide, acetone) and two disperse dyes, the disazo dye C.I. Disperse Orange 29 and the anthraquinone dye C.I. Disperse Blue 56, were used for spectroscopic analysis in this present work. The absorbance of aqueous dye dispersions and various organic solvent dye solutions was measured to evaluate the effect of the solvent on the shape and intensity of the absorption spectra and on the wavelength shift of maximum absorption. The validity of Beer–Lambert’s law in each system was ascertained. A suggestion is made how VIS absorption spectrophotometry can be used to determine the dye concentration in disperse dyebaths. The addition of organic solvent to the dyebath leads to dye dissolution, and the Beer-Lambert’s law is then fulfilled. The optimum ratio between the dyebath dispersion and the organic solvents for the dyes investigated is also determined.     

分散红73和分散蓝183及其混合物在超临界二氧化碳中溶解度的测定与关联(英文)

The solubility of disperse dyes and their mixture in supercritical carbon dioxide is an important property in study and development of supercritical fluid dyeing technology. In this study, solubilities of C.I. Disperse Red 73, C.I. Disperse Blue 183 and their mixture in supercritical CO2 are measured at temperatures from 343.2 to 383.2 K and pressures from 12 to 28 MPa with a static recirculation method. Under the experimental conditions for the binary (C.I. Disperse Red 73 + CO2 or C.I. Disperse Blue 183 + CO2) and ternary (C.I. Disperse Red 73 + C.I. Disperse Blue 183 + CO2) systems, the solubilities increase with pressure. The solubility of C.I. Disperse Blue 183 decreases with the increase of temperature when the pressure is lower than 16 MPa, and the trend is opposite when the pressure is higher than 16 MPa. However, there is no crossover pressure for C.I. Disperse Red 73. The solubilities are also affected by molecular polarity of dyes. The co-solvent effect exhibited in the dissolving process of mixed dyes promotes their disso-lution in supercritical CO2. The experimental data of solubilities of C.I. Disperse Red 73, C.I. Disperse Blue 183, and their mixture are correlated with the Chrastil model and Mendez-Santiago/Teja model. The former is more accurate.     

INVESTIGATION OF METHINE TYPE DISPERSE DYES OF BENZTHIOPHEN-ONE DERIVATIVES Ⅰ. STUDY ON THE RELATION BETWEEN DYES MOLECULAR STRUCTURES AND THEIR ABSORPTION SPECTRA

A series of Methine Type Disperse Dyes of Benzthiophen-one derivatives for polyester fiber was devised and prepared. The adsorption spectra of these disperse dyes in solution were measured. The relation between the molecular structures of these dyes and their adsorption spectra was studied and discussed.