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D. BALMFORTH C. A. BOWERS J. W. BULLINGTON T. H. GUION T. S. ROBERTS 《Coloration Technology》1966,82(11):405-409
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. 相似文献
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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. 相似文献
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K. NISHIDA S. OKANO T. HOTSUTA H. IWAMOTO H. TODA K. MINEKAWA 《Coloration Technology》1974,90(9):329-331
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. 相似文献
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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. 相似文献
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The rates of dyeing of polyester fibre with amino– and hydroxy–substituted anthraquinones in aqueous N, N–dimethylformamide (DMF) using microwave and conductive heating have been compared. Structural changes, commonly associated with interactions between DMF and polyester fibre, were limited and minimal shrinkage occurred due to the low DMF to water ratio and short dyeing times. Tensile properties reflected this minimal shrinkage through increased elongation at break, and differential scanning calorimetry also indicated that structural changes were minimal. Microwave radiation increased dye diffusion, shrinkage, and elongation at break compared to conductive heating. It is believed that molecular oscillation within the microwave–irradiated dyebath increases the rate of migration of dye to the fibre interface and enhances the plasticization of the polymer by DMF, thereby increasing the rate of dye diffusion within the fibre. Localization of energy associated with the use of microwave radiation is believed to be the predominant cause of increase in the rate of dyeing. 相似文献
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Aspects of the diffusion of carriers in polyester fibre have been studied using several compounds representative of commercial carriers. The apparent diffusion coefficients, activation energies of diffusion, and entropies of activation of diffusion have been determined. The apparent diffusion coefficients were found to be several orders of magnitude greater than those of disperse dyes, whilst the apparent activation energies and entropies of activation of diffusion were lower. A major difference in the diffusion behaviour of carriers, compared with that of disperse dyes, is the concentration–dependence of the diffusion coefficients of the former class of compound. 相似文献
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K. NISHIDA T. ISHII T. MORIMOTO T. HOTSUTA H. IWAMOTO H. TODA 《Coloration Technology》1978,94(2):53-55
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. 相似文献
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Thermofixation of the reactive disperse azo dye, 2-hydroxy-5-methyl-4′-sulphonazidoazobenzene (I) containing a sulphonazido group, with polyester fibre leads to chemical bonding of the generated sulphonylnitrene with the fibre substrate. The nitrene interacts with the benzene ring of the polyester substrate through the formation of a sulphonamido link as well as through insertion followed by ring expansion of the adduct to yield the relevant N-sulphonyl-azepine. The mechanism is confirmed by means of a suitable model experiment of interaction of I with dimethyl terephthalate. 相似文献
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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. 相似文献
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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. 相似文献
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阐述了分散染料及助剂在实验室染色工艺研究,并就染色后的污点、色点形成原因及处理作了分析,某企业运用该工艺后取得了较好的效果,在生产中有推广价值。 相似文献
14.
几种聚酯超细纤维染色用分散染料染色性能的研究 总被引:1,自引:0,他引:1
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。 相似文献
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《Coloration Technology》1972,88(8):296-298
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. 相似文献
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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。 相似文献
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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. 相似文献
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The behaviour on unmodified polypropylene fibre and film of two commercial disperse dyes and Dimethyl Yellow has been examined. The results indicate that disperse dyes capable of dyeing polypropylene fibre have high diffusion coefficients and low saturation values. Linear adsorption isotherms were obtained with Dimethyl Yellow. The behaviour of polypropylene fibre towards disperse dyes in general is discussed. 相似文献