大豆蛋白纤维针织物碱/变性浴染色工艺研究

利用科华素三原色系列活性染料对大豆纤维染色性能进行了系统实验,旨在探索大豆纤维碱性浴和变性浴染色的基本染色规律。实验结果表明,乙烯砜/一氯均三嗪双活性基活性染料对大豆纤维的碱性浴理想染色温度为60℃,中色染色的纯碱用量为5～6g／L。乙烯砜/一氯均三嗪双活性基活性染料较佳的酸性浴染色pH值为3～4,续染时间为40min。对大豆蛋白纤维采用活性染料变性浴的染色方法,可以达到良好的效果。     

二氟一氯嘧啶型染料在蚕丝织物上的应用研究

通过测定在不同的温度、pH值下,二氟一氯嘧啶型染料在蚕丝、羊毛和棉纤维上的上染率、固着率和总固着率,初步探索该染料在蚕丝纤维上的成键性能.研究表明,该染料在温度为70℃、pH值为8.5～9.5时,对蚕丝织物有较佳的染色效果.     

对氨基苯基-β-羟乙基砜硫酸酯合成工艺研究进展

乙烯砜型活性染料市场应用前景广阔,对氨基苯基-β-羟乙基砜硫酸酯(对位酯)是合成乙烯砜型活性染料的重要中间体,研究并探索其合成工艺非常重要。综述了以乙酰苯胺、对硝基氯苯等为起始原料合成对氨基苯基-β-羟乙基砜硫酸酯的工艺路线,指出了各种工艺路线的优缺点及改进方法,对每条工艺路线作出了客观评价。在对合成对位酯中间体酯化方法进行综合分析的基础上,指出了对氨基苯基-β-羟乙基砜硫酸酯的发展前景:重视新路线的开发,采用清洁工艺和新技术,大力发展优势产品,加快染料中间体的发展速度,向高附加值产品方向发展。     

活性染料反应性能与柞丝绸上染色性能的关系

活性染料染色时,染料与纤维的反应率取决于染料、纤维的结构以及染色工艺条件的影响。本文以母体结构相似的1-氨基-4-芳胺基蒽醌2-磺酸系六只活性染料,经提纯后在不同pH缓冲液中900170染色90min,测定其上色率、利用率、固色率以及共价结合反应率(表1),通过上述参数分析研究活性基结构对柞丝绸染色的影响。为进一步探讨染色机理、确定合理的染色工艺提供基础。 用活性染料染纤维素纤维时,在中性或弱酸性介质中,多数活性染料反应率很低,因为纤维素分子要在碱性介质中才能离子化,形成碱性纤维素,从而对染料进行有效的亲核攻击。而丝纤维则由蛋…     

乙烯砜型活性染料水解率模型的研究

研究了乙烯砜型活性染料的水解反应,且将水解反应简化为一级串行反应,并建立了水解率动力学模型.以C.I.活性蓝19为例,测定了该染料在温度为50℃和pH值为10条件下的水解速率常数,并在该条件下利用建立的水解率动力学模型计算不同时刻下活性染料的水解率,并与实际测得的水解率进行比较.实验结果表明,理论分析与实际相吻合.     

具有超高固色效应的多胺型交联染料合成及应用研究

合成了吡唑啉酮单偶氮黄色和1,4-二氨基蒽醌系蓝色四乙烯五胺型交联染料,利用分子链上剩余氨基的高反应性及同一分子链上存在多个可反应基团的优点,通过交联染色和固色实现染料在纤维上的超高固色率,实现染色的绿色化.用浸染和轧染的染色方法将交联染料应用于丝绸和棉纤维染色,然后用硫酸酯乙基砜型交联剂,两浸两轧、焙烘固色染色纤维.研究结果表明在pH为4时该两只染料竭染率最高,并且用交联剂固色后交联率均大于98%,染色纤维具有较好的日晒牢度、摩擦色牢度和水洗色牢度.     

亚麻纤维接枝染色同浴工艺探讨

以高锰酸钾和柠檬酸氧化还原体系作为引发剂,用丙烯酰胺单体对亚麻纤维进行接枝改性,并且同浴加入活性染料对亚麻纤维进行染色处理,主要研究接枝温度、时间、pH值对染料上染率的影响。     

活性染料染色动力学研究——(Ⅰ)磺酰氟型、乙烯砜型及氯乙酰型活性染料的吸附舆固着

用磺酰氟型、乙烯碸型及氯乙酰型活性染料在棉纖維与柞絲綢上染色,測定了它們的吸附率与固着率。討論了溫度及电解質的用量对纖維吸附率的影响。以碳酸鈉为固着剂測定了染料在纖維上的固着率。     

乙烯砜染料水解动力学及其反应机理的研究

合成了6个苯环上引入取代基的乙烯砜活性中间体,並与β-萘酚、N,N-二甲基苯胺偶合生成染料。采用薄层扫描法测定乙烯砜活性染料碱性水解前后的含量,得到其碱性水解的■一级反应速度常数在0.028—0.088 min~(-1)之间,利用Hückel分子轨道法进行理论计算,求得超离域因子,定域能,电子密度等理论指数,发现乙烯砜活性染料碱性水解速度常数的对数值与超离域因子S_(rn)值之间有较好的线性关系。探讨了其碱性水解反应的亲核加成反应机理,推测了决定反应速度的过渡态为部分π电子离域的结构:     

含β-羟乙基砜硫酸酯基的活性分散染料在锦纶上染色性能的研究

研究了含β－羟乙基砜硫酸酯基的活性分散染料在锦纶上的染色性能。经生 产中放样证明：这类染料具有色泽鲜艳、盖染性优异以及良好的耐光、耐湿处 理牢度等优点。     

Leveling Improvement for the Dyeing of the Shrinkproofed Wool

In this paper,the dyeing behavior of shrinkproofed woolusing Lanasol reactive dyes was studied.Good dyeinglevelness was obtained by modifying the common dyeingprocess.To minimize the strength loss,low temperaturedyeing process was chosen.The strength loss of shrink-proofed wool dyed at low temperature and high tempera-ture were compared.The exhaustion and fixation werealso determined at different temperature and pH.     

大豆蛋白纤维针织物活性染料染色工艺研究

选用3种类型的活性染料(Cibacron Red LS-2G,Cibacron Yellow HW,Cibacron Red FN—R)对大豆蛋白纤维针织物染色.用正交实验的方法,探讨工艺条件(碱剂的用量、促染剂的用量、温度)对吸尽率、固色率的影响.以固色率为主要标准,优化工艺条件,确定染色工艺.实验结果表明,这3种活性染料对大豆蛋白纤维的固色率不是太高,可用于染淡色和中色.     

Union Dyeing Behavior on the Blends of Tencel and Shrink-proofing Wool with the Same Reactive Dyestuffs in One Bath

In order to obtain union colour on the blends of Tencel and shrink-proofing wool and improve the efficiency of dyeing process, the dyeing behavior on the blends of Tencel and shrink-proofing wool in the same bath was studied. The Argazol TW reactive dyestuffs were involved in the dyeing process. The parameters under different conditions such as exhaustion, fixation, compatibility as well as soaping fastness were investigated in detail. It is shown that the Argazol TW reactive dyestuffs are suitable for dyeing of blends of Tencel and shrink-proofing wool and good dyeing behavior can be expected.     

One-bath Dyeing of Polyester/Wool Blend with Disperse Dyes

The role of auxiliary LAB as vehicle in dyeing polyester/ wool blends with disperse dyes is described. Dye exhaustion and bonding on polyester/wool samples are studied under different experimental conditions - the LAB amount, the temperature and pH value - to achieve optimum conditions. The results are compared with those obtained with and without conventional dyeing auxiliary products. Although dye exhaustion is higher in the presence of commercial carriers, the dye bonded increases markedly in the presence of auxiliary LAB in both fibers. The role played by auxiliary LAB in polyester/wool blend dyeing can provide a new method for this process.     

Determination of Absorbable Organic Halogen (AOX) Concentration in Wool Dyeing Effluent of Lanasol Dyes

In this paper, the absorbable organic halogen (AOX) amounts in the effluents from Lanasol reactive wool dyeing were determined using DIN 38409 H14 methods and compared with the remaining chromophore concentratlons which were determined spectrophotometrically. It was found that the dyes remaining in the dyeing effluents did result in AOX concentratiom. By measuring the adsorption rates of Lanasol dyes on activated charcoal at different temperatures and pH values, the maximum adsorption on activated charcoal and optimum adsorption conditions of the Lanasol reactive dyes were determined. The experiments showed that the AOX values of the dyes measured by these two methods were not in agreement.he reasons for this observation are discussed.     

蚕蛹蛋白纤维活性染料染色性能探讨

选用两类活性染料(Cibacron Red LS-2G,Cibacron Blue FN-R)对蚕蛹蛋白纤维长丝染色,讨论了工艺条件(Na2CO3的用量、NaCl的用量、温度)对两类活性染料固色率的影响.实验结果表明,两类活性染料对蚕蛹蛋白纤维均有较高的固色率,LS型活性染料的固色率大于FN型活性染料。NaCl对FN型活性染料的促染效果大于LS型活性染料,LS型活性染料在低盐条件下,也有较高的固色率。活性染料染色后,蚕蛹蛋白纤维长丝的强力损失小于10%.     

New Technology of Disperse Dyes Solubilized by Auxiliaries Dyeing to Wool

The new technology of disperse dyes solubilized by auxil-iary dycing to wool is put forward creatively.On the ef-fect of agent HM made by ourselves,the wool can bedyed by disperse dyes.The effects of temperature,pHvalue,liquor ratio,electrolyte and concentration ofHM,on the percentage of exhaustion,dyeing rate andpermeability,levelness are researched.This technologyhas many advantages,e.g.superior levelness and wet-fastness,saving dyes,simple process and bright shadeetc.,this project has utmost values of theory researchand practice application.     

超声波对超细羊毛纤维中性染料染色的影响

采用超声波处理对超细羊毛纤维进行不同深度的染色其影响不尽相同。研究表明,对于染料用量3 %(owf)以下的中浅色,染色前对纤维进行超声波处理,75 ℃染色可达到常规沸染的效果;而对于染料用量5 %(owf)的深色,超声波处理对染色有一定帮助,但作用与中浅色相比相差较多;超声波处理可以将染色温度降为85 ℃,减少纤维损伤,节约能源。     

Study on Application of Natural Plant Dye Gardenia on Cotton Coloration and the Dyeing Mechanism

IntroductionIn thelast fewyears ,the application of natural dyes intextile dyeing is being explored worldwide .In comparisonwith synthetic dyes , the natural dyes are generallyenvironmental friendly and nontoxic . Natural dyes canexhibit better biodegradability and generally have a highercompatibility with the environment . Correlative researchwork is being under way around the world on theapplication of natural dyes . The introduction of naturaldyes into modern dyeing procedures that can be …     

纤维反射红外特征光谱分析

通过染色纤维、未染色纤维以及紫外光照．皂煮及摩擦等方法模拟纤维老化过程，并通过反射红外光谱法进行分析，发现染色纤维上的染料对反射红外光谱无影响，通过紫外光照后纤维会发生光催化氧化，皂煮后棉纤维会出现羰基红外反射，摩擦作用将对纤维的结晶峰有影响。