The Dyeing of Wool–Polyester Blends with Reactive Disperse Dyes

The dyeing behaviour of the Procinyl (ICI) range of reactive disperse dyes on wool–polyester blends is described. Two of the dyes were found to dye both components of such blends to approximately the same depth, whilst the remaining three dyes in the range strongly favoured the wool component.     

Equilibrium Studies on the Dyeing of Polyester Fibre with Disperse Dyes in the Presence of Carriers

The effect of four pure carrier compounds on the equilibrium adsorption isotherm of a disperse dye on polyester fibre has been studied, and an attempt has been mads to relate the nature and magnitude of this effect to the aqueous solubility of the carrier, the partition of carrier between fibre and water, and the solubilising effect of the carrier on the dye.     

Carrier Dyeing of Polyester Fibre Part II – The Influence of Carriers on the Diffusion of Disperse Dyes

The influence of carriers on the diffusion of disperse dyes in polyester fibre has been studied. The extent to which the diffusion rate of a dye is increased is independent of the chemical structure of the carrier but depends on the molar concentration of carrier in the fibre and on the chemical structure of the dye. The influence on the diffusion rate decreases with increase in temperature, and the rates of decrease increase with increase in the activation energies of diffusion of the dyes when no carrier is present. The presence of carrier reduces the activation energies of diffusion of the dyes, the reduction being related to the decrease in the entropies of activation of diffusion brought about by the plasticizing action of the carrier. This reduction in the activation energy of diffusion leads to the existence of a temperature at which the presence of carrier would have no effect on the diffusion coefficient of the dye, and above which the presence of carrier would actually reduce the diffusion coefficient. The value of this temperature depends upon the carrier concentration in the fibre and the specific dye.     

The Dyeing Properties of Monoazo Reactive Disperse Dyes Derived from –Chloro–4–aminoacetophonone on Polyester Fibre Blends

The preparation of monoazo reactive disperse dyes from –chloro–4–aminoacetophenone and the dyeing properties of these dyes on polyester–cotton and polyester–wool blends are reported.     

The Dyeing Properties on Polyester Fibre Blends of Monoazo Reactive Disperse Dyes Containing a Vinylsulphonyl Group

The preparation of monoazo reactive disperse dyes containing a vinylsuphonyl group as the coupling component is described, as well as the dyeing properties of these dyes on polyester-cotton and polyester-wool blends. The suitability of the dyes for heat-transfer printing has been examined.     

Basofil纤维分散染料染色性能研究

该文以不同结构的分散染料对难染色的Basofil纤维染色,就其上染情况进行分析并得出染料结构与扩散系数和染色活化能的关系.     

New Experimental Evidence about the Dyeing of Polyester Materials with Disperse Dyes

It is shown for the polyester-water-disperse dye system that the thermodynamic parameters obtained from sorption data can differ from those obtained from the saturation solubilities of the dye in the two phases. The difference is due to deviations from linearity in the sorption isotherms. The causes of these deviations for disperse dyes on polyester materials are discussed in some detail.     

涤/棉混纺织物分散/活性染料一浴染色工艺研究

本实验选择双一氯均三嗪结构的活性染料和耐碱型分散染料,探讨涤/棉(65/35)混纺织物分散/活性染料一浴染色工艺。通过单因素实验分析了染色温度、染色时间、无水硫酸钠浓度和碳酸钠浓度对织物染色效果的影响,得到优化的工艺。红色在硫酸钠60 g/L、碳酸钠2 g/L、温度120℃、时间30分钟工艺条件下染色;蓝色在硫酸钠浓度45 g/L、碳酸钠浓度2g/L、温度130℃、时间60分钟工艺条件下染色。     

几种聚酯超细纤维染色用分散染料染色性能的研究

选用4只分散染料对聚酯超细纤维进行染色,并对其移染性、皂洗牢度及染料的高温分散性进行了研究。结果表明:染料的移染性与染料分子结构有关,分子量小,移染性好;皂洗牢度与染浴浓度有关,在相同条件下,染色浓度为4%时比12%高1级。碱性染色结果表明:BlueUP—GF在碱性条件下酯基水解严重,不适合碱性染色。     

Report of the Committee on the Dyeing Properties of Disperse Dyes III—Disperse Dyes on Nylon

Three tests are prescribed for assessing the dyeing properties of disperse dyes on nylon fibres. The tests are to determine migration, temperature-range properties and rate of dyeing. They are designed to correspond to practical dyeing conditions and to permit individual dyes to be rated on an A-E scale. Assessment is based on the use of the SDC Grey Scale for assessing Change in Colour.     

Effect of Crystal Modification on Dyeing Behaviour of Disperse Dyes

Meetings of the Manchester Region held at the Manchester Literary and Philosophical Society, Manchester, on 15 January 1970, Mr H. R. Hadfield in the chair; and of the Leeds Junior Section, held in the Department of Colour Chemistry and Dyeing, University of Leeds, on 19 January 1970, Mr K R. F. Cockett in the chair The dye 2-nitroaniline-4-ethylsulphone, 1-phenyl-3-methyl-5-aminopyrazole (aminopyrazole yellow) has been isolated in five different crystal modifications. The saturation values of these modifications in cellulose acetate have been determined at 80°C. Crystal modifications are important in the disperse dyeing of cellulose acetate and polyester materials because of their influence on colour yield and the stability of the dispersion.     

超细涤纶微胶囊分散染料染色动力学及热力学参数

将偶氮、蒽醌、杂环三种不同结构类型的微胶囊分散染料对涤纶超细织物进行无助剂高温高压染色,结合IOB值(无机/有机平衡值),考察了扩散系数Dt、半染时间t1/2、比速率常数k’及吸附等温线类型等染色动力学和热力学参数。结果表明:与织物IOB值相近或较大的微胶囊分散染料具有较高的Dt值;随Dt值增大,平衡吸附量C∞增大,k’值增大,但t1/2值减小;不同结构类型的微胶囊分散染料在涤纶超细织物上的吸附呈现Lang-muir型和混合型吸附类型。     

Physico–chemical and Dyeing Properties of Disperse Dyes containing Phthalimide Residues

The relationship between the constitution and the physico–chemical and dyeing properties of disperse dyes containing phthalimide residues has been studied. The influence of the –NH or –NCH₃ group in the phthalimide residues on the thermal and spectral properties of dyes has been investigated. Their influence on the dyeing process and on the colour and fastness properties of dyed polyester have also been studied.     

载体复配对涤纶分散染料常压沸染的影响研究

将N-正丁基邻苯二甲酰亚胺、自制苯酯助剂和WLS联合应用于涤纶常压沸染染色中,结果表明:N-正丁基邻苯二甲酰亚胺和苯酯助剂具有增塑涤纶的作用,而苯酯助剂和WLS具有阳离子结构,可促进分散染料阴离子胶束吸附涤纶,这3种助剂按适当比例复配有协效作用。复配载体应用于涤纶织物分散染料常压染色,染料上染百分率、染色织物表观深度、耐摩擦牢度及耐皂洗牢度与传统高温高压染色工艺效果相当。     

The Role of Benzyl Alcohol in the Solvent–assisted Dyeing of Acrylic Fibres

The mechanism of the solvent–assisted dyeing of acrylic fibres using benzyl alcohol has been investigated. The carrier action of benzyl alcohol plays a major role in increasing the rate of dyeing.     

Carrier Dyeing of Polyester Fibre Part III – The Role of Water in Solvent Dyeing

The role of water as an auxiliary in solvent dyeing of polyester fibre has been studied. The addition of water results in a lowering of the glass transition temperature, an increase in the diffusion coefficient and reductions in the energy of activation of diffusion and the entropy of activation of diffusion. The increase in the diffusion coefficient is smaller at higher temperatures and varies from dye to dye, being related to the energy of activation of diffusion. These effects are similar to those reported previously for carriers in the aqueous dyeing of polyester fibre and demonstrate that the role of water in solvent dyeing is similar to that of a carrier in aqueous dyeing.     

低聚物对聚酯织物分散染料染色废液COD_(Cr)的影响

采用原位聚合法在不同芯壁比条件下对纯分散染料进行微胶囊化,将其对溶剂萃取过低聚物的TTT及PET织物进行染色,采用紫外分光光度法测定染色废液CODCr值,并与相应的商品分散染料染色废液CODCr值进行比较.结果表明,低聚物的存在将增大PTT及PET织物染色废液的CODCr值;对于相同分散染料,芯壁比为1:2的微胶囊染色废液CODCr值大于芯壁比为1:4的微胶囊染色废液CODCr值;微胶囊分散染料染色废液CODCr值远低于相应商品分散染料的染色废液CODCr值.     

聚乳酸纤维分散染料染色工艺的研究

本文主要研究了聚乳酸纤维用分散染料的染色工艺染料在高于7n℃时上色，在100～110℃上染率达到最大，上染率随时间延长而增加，30分钟达到平衡；染浴的pH在3～7时对纤维的损伤较小，浴比对上染率影响较小，pH值上升．纤维强度随之降低，选择适合的染色助剂可提高上染率。     

Report of the Committee on the Dyeing Properties of Disperse Dyes

Four tests are prescribed for assessing the dyeing properties of disperse dyes on polyester fibres. The tests for migration and build-up properties correspond essentially to those already developed for disperse dyes on other fibres. The critical temperature test classifies dyes in terms of relative rate of initial strike. The diffusion test is a simple means of comparing relative rates of penetration of dye into polyester. As with tests recommended in previous reports, these tests permit individual dyes to be rated on an A-E scale for each property, with the exception of the critical temperature test where an A-D scale is used.     

Dyeing of Wool–Polyester Blends with Reactive Disperse Dyes: Variation of Dye Distribution and Reactivity for Wool

The dyeing behaviour of structural analogs of some commercial reactive disperse dyes on a simulated 70:30 wool–polyester blend has been studied. By varying the hydrophi/ic– hydrophobic balance of the dye molecule major changes in the distribution of dye between wool and polyester were observed. The reactivity of the γ–halo–β–hydroxypropyl group was found to be dependent on the halogen atom, while the reactivity of the N–bromoalkylsulphonamide group was found to be dependent on the position of the bromine atom.