AB—8树脂吸附和分离红花黄色素

本文研究了用树脂吸附和分离红花黄色素,比较了五种树脂对红花黄色素的吸附,选用AB－8树脂作吸附剂,洗脱剂用80％乙醇,产品质量较传统法好,产品杂质少,色价高,AB－8树脂非常稳定,使用17次后其吸附率仅降低2．32％。     

染颜料工业“十五”发展展望

对染、颜料工业作了回顾并对“十五”发展规划提出了看法。     

高档纺织品涂料印染研究进展

介绍涂料印花,涂料染色在高附加值纺织品上的实际应用及其最新发展动向。     

从柑桔皮中连续提取色素、果胶的工艺研究

研究了以柑桔皮为原料,乙醇浸提色素,酸水解乙醇沉淀法提取果胶的工艺。在实验中用Ｌ９（３＾４）正交实验法对果胶提取的最佳条件进行探讨,对提取酸度,时间、温度等因素在三个不同水平上进行优选实验,以果胶得率＊粘度＝胶凝单元数（ｊｏｉｙｕｎｉｔｓ）作为衡量果胶产量的综合指标。实验中选择乙醇为浸取剂,果胶用盐酸水解,最佳条件：ＰＨ１．５,温度８０℃,时间２ｈ,果胶得率１３．８８％。     

Allochroic effect of praseodymium doped neodymium molybdate pigment synthesized by solid-state reaction

This paper was to synthesize praseodymium-doped neodymium molybdate allochroic pigments with different molar ratios of molybdenum (Mo), neodymium (Nd) and praseodymium (Pr) through solid-state reactions. The pigments synthesized were investigated by X-ray diffraction (XRD), selected area electron diffraction (SAED), thermogravimetry and differential thermal analysis (TG-DSC), diffuse reflectance spectroscopy, X-ray photoelectron spectroscopy (XPS) and colorimeter. The results show that a pure neodymium molybdate (i.e., Nd₂MoO₆) can be formed after sintering at 1000 °C for 3 h, and praseodymium-doped neodymium molybdate can be synthesized after sintering at 1000 °C for 3 h due to praseodymium ions entering in the lattice of Nd₂MoO₆. The crystal structure in the pigment synthesized can transform from cubic to tetragonal depending on the molar ratio of neodymium/molybdenum and sintering procedure. The color properties of pigments were measured in color space CIEL*a*b* under different standard illuminants (i.e., solar-light (D65), incandescent light (A), cool white fluorescent lamp (F2), and three-band fluorescent lamp (F11)). The results show that the colors of the pigments vary under different illuminants. According to the color difference (ΔE) analysis, neodymium molybdate pigment exhibits a maximum color difference of 10.69, and the maximum color difference of praseodymium-doped neodymium molybdate pigment with doping content of 0.2 increases to 17.63 due to the Pr³⁺ ions substitution for Nd³⁺ ions in the lattice. In addition, the color difference of the pigments with allochroic effect was discussed based on the colorimetry. The color difference of the pigments is due to a high reflectance region at 540–550 nm and a low reflectance region at 380–500 nm.     

Self-stratifying coatings containing barrier and active anticorrosive pigments

The influence of decorative and anticorrosive pigments on the distribution of pigments and protective properties of self-stratifying epoxy/acrylic coating systems was investigated. The separation of pigments was determined basing on their properties and the type of additives used and was expressed as a factor determining the separation of the pigments between the upper and bottom layer. The pigment distribution coefficient was calculated basing on the colour difference between the upper and bottom layer as well as by means of the XRF method.     

树脂法提取玫瑰李红色素的工艺研究

研究了用树脂吸附和分离玫瑰李红色素，实验结果表明：X－5树脂对玫瑰李红色素的吸附效果最好。被吸附的玫瑰李红色素用70％的乙醇溶液洗脱，流速为1．4BV／min。X－5树脂非常稳定，使用22次后，其吸附能力无明显减弱。     

竹笋壳色素的提取及性质的研究

研究竹笋壳天然棕色素的提取工艺，并对所提取的色素对光、酸碱性、氧化剂、还原剂和常用食品添加剂的稳定性进行了研究，目的在于开发一种新的天然棕色素，也为竹笋壳的利用提供一条新的途径。     

涂料全满地平网印花

涂屯花具有工艺简单、成本低、污染省等优点，并有较大的市场潜力。本文介绍在平钢印花机上生产全满地涂料印花织物，并就平网印花机的接版印问题、印花涂料的选择、工艺条件等进行了探讨。     

柚皮色素的提取及其稳定性研究

本文报道了从柚皮中提取食用色素的试验，对提取剂进行了优化实验，并在不同条件下探索了柚皮色素的稳定性。