水分散辣椒红色素的稳定性研究

本文对水分散性辣椒红色素的稳定性进行了研究，结果表明，ｐＨ值、温度、氯化钠、柠檬酸、蔗糖、氧化剂、抗氧剂均不影响该色素乳状液的稳定性，仅在含酒精的水溶液中有破乳现象。该色素在碱性条件下颜色保留率比酸性条件下高，一定浓度的氯化钠、柠檬酸、蔗糖、酒精溶液中保留率较好，有抗氧剂存在时，保留率很高，为其颜色保存提供较好条件。     

羊毛纤维与丙烯酸酯类单体接枝共聚物活性染料染色

通过染浴 p H值对固色率的影响 ,接枝对固色率、对色光及匀染性、对皂洗牢度的影响等实验 ,讨论了羊毛纤维与甲基丙烯酸甲酯接枝共聚物用活性染料染色的染色性能。结果表明 ,接枝羊毛染色的固色率高、匀染性好 ,皂洗牢度比酸性染料染色的羊毛有较大提高。     

辐照处理彩色钻石的缺陷中心及阴极发光谱

鉴于钻石的发光光谱与其吸收光谱之间在镜对称关系这一性质,采用ＥＰＭＡ－阴极发光仪和阴极发光显微镜,对辐照处理彩色钻石的阴极发光及发光变特征进行研究。结果表明,辐射处理彩钻多属发光,其发光色调、强度、谱位与钻石内部杂质氮、氢原子、塑性形变、辐射损伤等缺陷中心密切相关。在发光结系组合中,除Ｎ２,Ｎ３氮原子心和５９５,ＧＲ１（７４１）辐射损伤心外,还存在由钻石晶格自振动产生的晶格振动心,另出了５１５,５     

Seasonal variations in theaflavins,thearubigins, total colour and brightness of Kangra orthodox tea (Camellia sinensis (L) O Kuntze) in Himachal Pradesh

Variations in theaflavins, thearubigins, total colour and brightness of orthodox black tea were studied for four consecutive years (1993–1996) with a view to evaluating the effects of changing weather conditions on the quality of Kangra tea. A degree of withering of 600–650 mg g⁻¹ during the first, second and fourth seasons was optimal for the development of significantly higher brightness and total colour characteristics. The quality of rainy season teas suffered owing to high chlorophyll content and low degree of withering. Hot air circulation through the withering troughs to assist evaporation of leaf moisture increased the brightness and total colour of rainy season teas. High atmospheric demand during the dry season assisted loss of green leaf moisture, but withering and brightness exhibited significant negative correlations with high relative humidity and rainfall. Summer season teas were superior in their total colour and brightness. © 2000 Society of Chemical Industry     

Skin colour assessment in safety testing of cosmetics. An overview

Synopsis
Few subjects are as problematical to dermatologists, cosmetologists and related experimenters involved in safety testing as the clinical assessment of skin colour. At the core of the problem is the word erythema, which does not communicate a sense for the nuance of red. In addition, light shades of red are not visible in dark-skinned people. Human assays aiming at evaluating the irritancy and allergic potential of cosmetics take advantage to use instrumental assessments of skin colour. However, there are pitfalls related to the complex biological aspects of the cutaneous reactivity, to the design of the in vivo assay, and to technical aspects bound to the principle of the measuring methods. Sound information can only be reached when these concerns are solved.
Résumé
Peu de sujets sont aussi problématiques pour les dermatologues, cosmétologues et autres expérimentateurs impliqués dans les tests de sûreté que l'évaluation clinique des couleurs cutanées. Au centre du problème est le mot érythème qui ne communique pas la notion des nuances de rouge. De plus, un érythème discret peut ne pas être visible chez des individus à la peau foncée. Les tests humains visant àévaluer les potentialités d'irritation et d'allergie aux cosmétiques bénéficient des évaluations instrumentales de la couleur cutanée. Cependant, il existe des pièges liés aux aspects biologiques complexes de la réactivité cutanée, au choix du test in vivo et à des aspects techniques en relation avec le principe du système de mesure. Une information adéquate ne peut être obtenue qu'après avoir résolu ces problèmes.     

装饰色彩琐谈

论述了装饰色彩研究的对象，探讨了建筑与环境的色彩对比、室内设计中光和色的合理应用等方面的规律，并用实例加以说明。     

散射参考光法制作真彩色全息图

本文提出了用散射参考光制作2D真彩色全息图的原理,按本原理制作的全息图比用散射物光法制作的图像清晰得多,并且使记录激光能量得到充分利用,特别适用于记录大幅面彩色全息图。     

不锈钢化学着色工艺

通过改变传统化学着色配方成分的方法，研究了１Ｃｒ１８Ｎｉ９Ｔｉ奥氏体不锈钢化学着色新工艺．结果表明：在传统的铬酸－硫酸系化学着色液中添加少量Ｈ３ＢＯ３和羧酸钠，可有效地改善膜的均匀性，添加二价锰离子可显著提高膜的色彩饱和度，加入微量混合稀土元素可大大缩短着色时间．     

彩板幕墙技术研究及其应用

本文介绍了一种新型的幕墙结构——彩板幕墙。彩板幕墙是一项新技术,具有强度高、刚性好、防火性能优良等特点。本文对其结构体系和性能进行了研究分析,并对其成果应用进行了阐述。     

纺织品沾色程度的仪器评级研究

使用ＳＳＲ８９仪器评级公式对纺织品的沾色程度进行了评价，并与目测评级做了对比。论证了沾色程度仪器评级的可行性，同时指出了存在的一些问题。