New methods for improving the dyeability of cellulose fibres with reactive dyes*

Lewis, David M.; Lei, X P

doi:10.1111/j.1478-4408.1991.tb01312.x

Cited by 61 publications

(28 citation statements)

References 3 publications

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“…Improvement of the reactive dye uptake by surface modification of cellulose fabrics can increase the utilization efficiency of the dyes and reduce the concentration of salt required for dyeing. Considerable attention has focused on the introduction of cationic groups, commonly quaternized amino groups, by means of pre-treatment of the cotton fibers or cotton fabrics to increase the attraction between the fibers and anionic dyes and consequently enhance the dye-fibers substantivity (Lewis and Lei 1991;Broadmann 1999;Burkinshaw et al 2000).…”

Section: Introductionmentioning

confidence: 98%

Treatment of oxidized cellulose fabric with chitosan and its surface activity towards anionic reactive dyes

2008

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The surface modification of cellulose fabric with chitosan was achieved through an oxidation of the fabric with KIO 4 followed by reductive ammination with chitosan. The chitosan content in the fabric determined by Kjeldahl nitrogen analysis technique was 1.69%. The scanning electron micrograph revealed submicron particles of chitosan attached on the fabric surface. Dyeing of the modified fabrics with mono-chloro-triazine and vinyl sulfone anionic reactive dyes, showed vastly improved exhaustion and color yield (K/S) indicating that this method of surface modification is effective for changing surface activity of the fabric. The enhancement of the dye uptake brought about an improved dyeing process in which the dye and salt used could be reduced by half and 14%, respectively. A Significant drop in burst strength upon the oxidation but no discernable adverse color fastness property was observed for the chitosan-modified fabric.

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Section: Introductionmentioning

confidence: 98%

Treatment of oxidized cellulose fabric with chitosan and its surface activity towards anionic reactive dyes

2008

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“…As result the low absorption and exhaustion was occurred. Plasma is one of the newest surface modification techniques which are widely used in the textile industry and can useful for this defect 29,30 . …”

Section: Introductionmentioning

confidence: 99%

Effect of Nitrogen Plasma Treatment and Direct Dye on Zeta Potential of Cotton Fabric

Aboltakhty¹,

Rashidi²,

Yazdanshenas³

et al. 2018

Orient. J. Chem

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In this paper, cotton fabrics were washed, bleached and then treated with low-temperature plasma of nitrogen then dyed with direct dyes. Some properties of the samples such as zeta potential, weight loss, crystal intensity, dyeability and washing fastness were investigated. The relative color strength and reflection properties of dyed samples were measured by using reflective spectrophotometry. The morphological changes of cotton samples after nitrogen plasma were studied by scanning electron microscope. Also chemical changes and zeta potential of samples have been investigated by using Fourier Transform Infrared Spectroscopy (FTIR) and zeta sizer respectively. The results show that zeta potential of cotton fabrics influenced by plasma treatment and also dye, plasma treatment cause to improve color strength near 20%.

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“…[4][5][6][7][8][9][10][11] Essentially, the pretreatment of cellulose fibers before their dyeing with direct and reactive dyes can improve the substantivity of the anionic dyes for the substrate through the operation of ion-ion forces of interaction between the anionic (commonly sulfonate) groups in the dye and the cationic groups in the pretreated fibers. 12,13 The most common approach is to reduce the amount of salt required (or to eliminate salt altogether) and to increase the efficiency of the dye-fiber covalent bonding reaction via reactions of various types of amino compounds with cotton. Improvements in dye fixation and a reduction of the impact of the effluent on the environment have been principal areas of attention.…”

Section: Introductionmentioning

confidence: 99%

Dye behavior of cationically treated silk

Xiang

Cai

2008

J of Applied Polymer Sci

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To increase the performance of silk fabrics, especially their dyeability, a cationic modifying agent, 3-(trimethoxysilyl) propyl dodecyl dimethyl ammonium chloride (HSQA), was prepared in our laboratory. The dye behavior of the cationized silk was examined with five leveling-type acid dyes. Better color shades and good washing fastness were achieved after silk was cationized by HSQA, and it was possible to dye silk under neutral conditions at 708C. The equilibrium adsorption isotherm and kinetic properties of the cationized silk dyed with CI Acid Orange 7 were investigated. The adsorption of CI Acid Orange 7 onto the HSQA-cationized silk was also in good agreement with the Langmuir isotherm, with an enthalpy and an entropy of 220.13 kJ/mol and 230.06 J/mol K respectively. A pseudo-second-order kinetic model agreed well with the dynamic behaviors for the adsorption of CI Acid Orange 7 onto the cationized silk under neutral conditions, with the activation energy decreasing from 61.87 to 53.32 kJ/mol.

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New methods for improving the dyeability of cellulose fibres with reactive dyes*

Cited by 61 publications

References 3 publications

Treatment of oxidized cellulose fabric with chitosan and its surface activity towards anionic reactive dyes

Treatment of oxidized cellulose fabric with chitosan and its surface activity towards anionic reactive dyes

Effect of Nitrogen Plasma Treatment and Direct Dye on Zeta Potential of Cotton Fabric

Dye behavior of cationically treated silk

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