Physico‐chemical modelling of the dyeing of cotton with reactive dyes

Ferus-Comelo, Martin; Clark, Matthew

doi:10.1111/j.1478-4408.2004.tb00234.x

Cited by 4 publications

(3 citation statements)

References 15 publications

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“…The pore model has been frequently employed to interpret observations concerning the dyeing process in which water-soluble dyestuffs 11,12 are used. Pores in the fiber are mainly caused by the imperfect lateral packing of microstructural elements, 13,14 which can be measured by using nitrogen sorption, 15 mercury porosimetry, 16 differential scanning calorimetry, 17 dye diffusion/sorption 18 or inverse size exclusion chromatography (ISEC) methods.…”

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confidence: 99%

Effect of liquid ammonia treatment on the pore structure of mercerized cotton and its uptake of reactive dyes

Sun

Zhou

Xing

2016

Textile Research Journal

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Structural changes in mercerized cotton by liquid ammonia (LA) treatment were investigated and correlated with changes in dyeability of cotton fabrics with reactive dyes. The pore structures of mercerized cotton and mercerized-liquid ammonia (M-LA) treated cotton were characterized by inverse size exclusion chromatography (ISEC). Results showed that when the mercerized cotton was subjected to LA treatment, cumulative accessible volume of smaller pores (e.g., 25.2 Å) increased, whereas that of the larger pores (e.g., 56.7 Å) decreased. These results might be related to the changes in the amorphous region of cotton fiber. The decrease in crystallinity of cotton fiber would increase accessible volume of smaller pores. The larger pores might be compressed by extrusion during swelling of microfibrils or elementary fibrils in water. The change in dyeability of fabrics with reactive dyes of various molecular weights could be rationalized using the observed changes in pore structure. Results also showed that ISEC was more suitable than the method employing Chrastil's diffusion equation for analyzing the pore structure of cotton fiber.

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confidence: 99%

Effect of liquid ammonia treatment on the pore structure of mercerized cotton and its uptake of reactive dyes

Sun

Zhou

Xing

2016

Textile Research Journal

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“…In this case, the process of dye migration from the liquor to the fibre is an exhaust dyeing procedure with a short liquor ratio (1:0.7–1:1) . The amount of dye adsorbed onto the fibre surface is a function of its affinity (Δ μ ), which in turn depends on temperature, as presented in Eqn – the higher the dye liquor temperature (T), the lower the dye substantivity:

- Δ {italicμ}^{0} = RT ln K + z F ψ

…”

Section: Resultsmentioning

confidence: 99%

Effect of the water content of padded cotton fabrics on reactive dye fixation in the pad‐steam process

Zhang

Fang

et al. 2016

Coloration Technology

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A series of padded cotton fabrics with various water contents were obtained through vacuum dehydration. The effects of the water content on the fabric temperature variation during steaming, the colour properties, and the dye fixation rate (%F) were investigated. Dye distribution in the dyed cotton fibres was assessed. The influences of steaming time and sodium carbonate concentration on K/S value and %F of the dyed fabrics with low water content were also evaluated. The results indicate that reducing the water content of the padded cotton fabric to around 25.0% prior to steaming was favoured for reactive dyeing. The temperature of the wet fabric rose rapidly, the K/S value and %F were enhanced, and in addition the dye penetration into the dyed cotton fibres was sufficient. However, for padded fabrics with extraordinarily low and high water contents (e.g. 1.4% and 70.9% respectively), both the K/S value and %F were decreased. Furthermore, a white core phenomenon was evident for the fibres of the dyed fabric with a water content of 1.4%. Variation in the L* values was in line with the K/S values as the fabric water content varied. As expected, steaming time and sodium carbonate dosage can also affect reactive dye fixation greatly and should be determined accordingly for dyeing cotton fabric with low water content.

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“…At present, at the area of wood dyes application, wood acid dyes is widely adopted, the combination mechanism of acid dyes and wood is physical adsorption, and the combining ability is weak [2]. But under certain conditions, reactive dyes will react with wood fiber cellulose and semihydroxyl to form a stable chemical bond, in this way it can fix on the wood [3]. At the same time it has many advantages, such as low price, good resistance to light, good permeability and chemical stability, completed chromatography, wide sources, etc [4].In the experiment, we dyeing the fraxinus mandshurica by reactive dyes (reactive red X-3B), and we researched the influence of factors of Fraxinus mandshurica on the Dye-uptake of Veneer.…”

Section: Introductionmentioning

confidence: 99%

Studies on the Dye-Uptake of Fraxinus Mandshurica Veneer with Reactive Dyes

Guo

Liu

2010

AMM

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In order to explore the factors of fraxinus mandshurica veneer dye-uptake, the discourse made use of reactive dyes. The result showed that significant effects of fraxinus mandshurica veneer dye uptake are reactive dye concentration, dyeing temperature, dyeing time and sodium chloride concentration. The artificial dyeing technology of fraxinus mandshurica was defined finally. Using reactive dyes, reactive red X-3B 10 g/L, temperature 95 °C, the dyeing time 240 min, sodium chloride 30 g/L. The study provided a theory gist and a practical guidance role for imitation precious wood.

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Physico‐chemical modelling of the dyeing of cotton with reactive dyes

Cited by 4 publications

References 15 publications

Effect of liquid ammonia treatment on the pore structure of mercerized cotton and its uptake of reactive dyes

Effect of liquid ammonia treatment on the pore structure of mercerized cotton and its uptake of reactive dyes

Effect of the water content of padded cotton fabrics on reactive dye fixation in the pad‐steam process

Studies on the Dye-Uptake of Fraxinus Mandshurica Veneer with Reactive Dyes

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