分散染料基本知识.ppt

Basic knowledge for Disperse Dyes its application fields 分散染料的基础知识及其应用领域 Properties of Disperse Dyes Polyester Fibres 分散染料和聚酯纤维的特性 Acid dyeing of polyester fibres with disperse dyes 分散染料的聚酯纤维酸性染色 Printing of polyester fibres with disperse dyes 分散染料的聚酯纤维印花 Chemical properties of Disperse Dyes分散染料的化学特性 Non-ionic 非离子 small molecular size 小分子 water-insoluble 不溶于水 form aqueous dispersion with the aid of dispersing agent 在分散剂的作用下形成水分散体 Chemical Description of Disperse Dyes分散染料的化学说明 Determines the shades properties of disperse dyes 决定分散染料的色光和特性 classified into 2 main groups - Azo Anthraquinone 分成2大类- 偶氮和蒽醌 Others are cumarin derivate, quinoline, hetero, indigo naphtoquinone, nitro 其余的有豆香素衍生物, 喹啉, 靛蓝, 硝基 Characteristics of Azo compound 偶氮化合物的特性 For example, 例如 (Dianix Brill. Red ETD 300%) 大爱尼克司艳红ETD 300% molecular weight - (350-500) 分子量 – (350-500) full spectrum from yellow, orange, red, violet to blue colour 整个色谱, 包括黄橙红紫蓝 high colour yield good colour fastness 高得色量和色牢度 Cheap big volume for production 生产成本低产量大 most important for production of disperse dyes (more than half) 对分散染料的生产最重要(超过半数) Characteristic of Anthraquinone 蒽醌特性 For example, 例如 (Dianix Red E-FB 220%) 大爱尼克司 红 E-FB 220% molecular weight - (250-400) 分子量 – (250-400) Brilliant, mainly red, violet blue colours 色艳, 主要有红紫蓝 High diffusion rate 高扩散率 Good levelling properties alkaline stability 匀染性和对碱稳定性好 Good light fastness 光牢度好 Expensive 价格贵 25 - 30% of disperse dyes made of anthraquinone 25-30%的分散染料由蒽醌组成 Chemical Nature of Polyester Fibres 聚酯纤维的化学性质 forms by reacting an acid (e.g. Terephthalic acid) and an alcohol (e.g. ethylene glycol) 由一种酸(例如: 对苯二酸)和一种醇(例如: 乙二醇)反应形成 For example, Dacron 例如, 达可纶 The Polymer (Polyethylene terep