植物染料及其在纺织品中的应用前景

植物染料利于环保,用其染色后的纺织品色泽柔和、无毒无害、对环境友好,还具有保健功能。文章介绍了植物染料的来源、特点、染色方法,并展望了其应用前景。     

Preparation of P(St-BA-VBT)/dye Colored Nanoparticles

P (St-BA-VBT)/dye colored nanoparticles were prepared by staining P (Styrene-Butyl Acrylate-VinylBenzyl Trimethylammonium chloride) nanoparticles synthesized by soap free cationic emulsion polymerizati...     

Modeling of Light-Induced Changes in Reflectance Spectra: A Predictive Tool for the Effect of an Arbitrary Spectral Irradiance

Optical radiation is capable of altering the spectral reflectance of layers of colorants. Light damage is of particular importance in respect to unique historical objects in exhibitions. The major parameter governing this process is the spectral irradiance applied to the surface. As this may vary significantly for different light sources, an experimental investigation of the damage potential of the numerous illuminants available is a cumbersome task. In this work a numerical algorithm for the prediction of modifications of the spectral reflectance of colorants subject to a given arbitrary spectral irradiance over a given time is presented. It uses the temporal evolution of the spectral reflectance of the dye or pigment at issue when irradiated by a set of narrowband light sources as input data. The predicted reflectance spectra and the resulting color changes are compared to those measured for samples irradiated with common polychromatic light sources. The concept described in this work aims at the implementation of a standardized procedure and database for the prediction of radiative damage for a comprehensive range of pigments and dyes.     

Unveiling the colour palette of Arraiolos carpets: Material study of carpets from the 17th to 19th century period by HPLC-DAD-MS and ICP-MS

Wool samples collected from thirteen Arraiolos carpets from the 17th–19th century belonging to the National Museum of Ancient Art (NMAA, Lisboa, Portugal) collection were analysed to identify the natural dyes and mordants employed in the traditional dyeing process, in a way to complement and improve actual knowledge on this rugs. Natural dyes were extracted from Arraiolos historical wool fibres using a mild extraction method, followed by high-performance liquid chromatography with diode array and mass spectrometry detection (HPLC-DAD-MS) for compound identification. Colourimetry was used to measure colour parameters in all historical samples. Quantification of mordants in the historical fibres was carried out by inductively coupled plasma-mass spectrometry (ICP-MS). Weld, indigo, spurge flax, brazilwood, madder and cochineal were identified as dye sources in the fibres. Alum was the most commonly used mordant, but the presence of iron and zinc was also detected in some darker samples. The use of madder and cochineal is not referred in the available historical dyeing recipes. This study also proved that the actual visual perception of these carpets is strongly affected by the natural dyes photodegradation, which was mostly unaccounted for before.     

β-环糊精在酸性染料染色上的应用初探

本文主要利用紫外-可见分光光度法分析β-环糊精与四种酸性染料之间的作用，并探讨了加入不同浓度的β-环糊精对酸性染料染色性能的影响。     

乙二胺二邻苯基乙酸钠的合成以及在皂洗中的应用

乙二胺二邻苯基乙酸钠（EDDHA-Na）是一种含有2个苯环的酰胺类的化合物,具有极佳的吸附和分散作用,能够牢牢结合水解的活性染料,是一种良好的活性染料防沾色皂洗剂。介绍了EDDHA的合成方法,通过质谱分析确定了实验室合成物的分子结构,将其用于活性染料皂洗工艺中,结果显示自制的EDDHA—Na和进口的同类产品具有相当的牢度性能和防沾色效果。     

用于重写式光盘有机染料的研究进展

对重写式光盘染料的基本要求、主要类别以及结构与性能之间的关系进行了综述,并展望了今后的发展趋势     

液相色谱-串联质谱法快速测定纺织品中6种致敏性分散染料

应用高效液相色谱-三重串联四级杆质谱技术,建立了纺织品中6种致敏性分散染料同时测定的快速分析方法。纺织品样品经甲醇提取后直接上样测定,前处理简便快捷,适合大批量样品分析。利用三重四级杆串联质谱的多重反应监测技术(MRM),可以减小基质干扰,降低检出限和增加定量准确性。该方法定量限10×10-9,线性范围0.1～100μg/mL,添加回收率不低于90%,RSD5%。     

有机染料分光光度法测定蛋白质的研究进展

病毒给人类的生存造成了严重危机,因此寻求快速检测病毒的方法具有重要的社会意义.本文对有机染料分光光度法分析检测蛋白质的研究进展进行了综述.     

酞菁光盘染料的研究进展

总结了酞菁光盘染料近十几年的合成进展,以及其基本类型、结构与光物理性质之间的关系,并在应用方面总结了酞菁光盘染料结构与应用性能之间的关系,对其在CDR的应用前景方面作了简要分析。