无硝血红蛋白着色剂的研制

以新鲜猪血为原料,分离血清,依次进行防腐、发色和抗氧化处理,制成浆状的无硝血红蛋白着色剂。它的优良性能,经紫外－可见光光谱测定测定存放和光照实验,得到了验证。     

仙人球红色素的提取与性质

研究从仙人球中提取红色素的方法、理化性质和稳定性。提取方法简便易行，在酸性和中性环境下，该色素对光和大部分金属离子都是稳定的，对热在不太高的温度下亦有一定的稳定性。     

纳米复合彩色薄膜的制备

以正硅酸乙酯、乙醇、生物染色剂为主要原料 ,通过溶胶 -凝胶法制备了掺有有机染料的SiO2 溶胶 ,利用提拉法在普通玻璃上成功镀制了均匀透明、色泽丰富的彩色涂层 ,该涂层颜色在高温下会彻底分解消失 ,实现了玻璃的可回收利用 .运用光谱分析、扫描探针显微镜研究了薄膜的结构 ,以及工艺参数对薄膜在可见光区光谱性能的影响 .     

Colorant Formulation Using 3 - layer Artificial Neural Networks

The colorant formulation using artificial neural networks (ANN) was investigated in this study. A simple 3 -layer, input - hidden - output system was constructed for the recipe formulation of one - , two - , and three -dye mixtures. Comprehensive tests were carried out to explore the properties of a 3 - layer simple ANN systematically . These properties include number of neurons in the hidden layer, learning rate of the network, momentum factor of the network, as well as the number of epochs for the learning process. The tests show accurate results for one - and two - dye mixtures while less accurate but comparable results to conventional colorant formulation systems for three - dye mixtures. It is also found that the optimum values of the neural network parameters are important towards the accuracy of the colorant formulation.     

Recipes Prediction by Matching to K/S Values Based on New Two-constant Theory

A concept of new two-constant of colorant, both （ R/St ） and （s/St）, is introduced based on the Kubelka-Munk theory. A new two-constant theory for color matching is presented. Basic equations used in matching to K/S values are given in matrix form based on the new two-constant theory. Algorithm for a least-squares match to K/S values of a sample is developed by use of the new two-constant theory. The algorithm is suitable for single-constant theory as well as two-constant theory. The experimental data show that calculating K/S values of disperse dyes based on new two- constant theory are accordant with the measuring ones. The recipes predicted by new two-constant theory arc closer to the actual recipes of the standard sample than the recipes predicted by single-constant theory. The sample according to the recipe predicted by new two-constant theory has smaller color difference against for the standard than the sample according to the recipe predicted by single-constant theory. The results show that the scattering of disperse dyes cannot be negligible, and that the recipes match to textiles colored by disperse dyes should be predicted by using of new two-constant theory.     

准直照明下Atherton理论的修正

本文纠正了Atherton理论中的错误,导出了在准直照明条件下色料反射率R_∞与吸收系数和散射系数之比(K/S)的关系——CI函数。K-M函数、Atherton函数和CI函数在色料反射率R_∞不是很大时,都主要是反射率的反商函数。假设染料的散射可忽略,那么他们都与染料浓度存在线性关系,因此在单常数配色时,染料强度评价和颜色深度评价时,都能得到相同的结果。     

五流L型连铸中间包流场优化的水模分析

采用水模型模拟的方法,对某钢厂十机十流连铸机中间包中的一个完全不对称结构的五流L型中间包进行流场优化。试验结果表明:控流最优方案为湍流抑制器T+副导流墙D2+上2孔倾角为25°下靠近后墙单孔倾角30°的3孔主导流墙D1a。采用该方案可使染色剂到达各出口的时间增加,各流响应时间差减小,RTD峰值浓度减小以及高浓度存在的时间延长,各流之间的死区比例减小。     

高效液相色谱法同时测定食品中8种合成着色剂

建立了高效液相色谱法同时测定食品中8种合成着色剂(柠檬黄、苋菜红、胭脂红、日落黄、诱惑红、亮蓝、酸性橙、赤藓红)的方法。样品经超声提取、离心定容、过膜,经Warters-C18(250mm×4.6mm,5μm)色谱柱分离,以甲醇+0.01mol/L乙酸铵为流动相进行梯度洗脱,用二极管阵列检测器,在254nm、629nm波长处检测,8种物质的线性相关系数大于0.998,方法检出限为0.0502～0.6119μg/mL。8种合成着色剂的回收率范围在85.4%～99.3%之间,RSD(n=6)范围在1.36%～3.89%之间。方法简便、准确、快速。     

黑色色精与白色涂料质量配比对涂层表面光反射率的影响

首先,在水溶性白色涂料中混合不同质量比的黑色色精,形成几种混合涂浆,将混合涂浆均匀地涂在纸板上,并自然干燥,得到不同灰度的表面涂层试样.其次,通过一种称为圆盘-亮度的方法测量并计算每个试验样品的光反射率,并验证圆盘-亮度方法测量涂层表面光反射率的有效性.最后,根据Kubelka-Munk散射和Lambert-Beer定律,推导出涂层表面光反射率的计算关系模型,并根据该模型进行实测数据拟合.结果表明:涂层表面的光反射率计算模型可以很好地用于拟合实测数据;提出的计算模型或经验公式可用于指导白色涂料与黑色色精混合配制,获得所需的表面光反射率涂层.     

水溶性硫化黑BR染色性能和检验办法

介绍了水溶性硫化黑BR的标准技术指标，从强度和色光检测、分光强度测定等方面阐述了水溶性硫化黑BR染色性能和检验方法。