The whitening of textiles

Cardamone, Jeanette M.; Marmer, William N.

doi:10.1007/978-94-011-0595-8_2

Cited by 19 publications

(17 citation statements)

References 27 publications

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“…It can be speculated that the capillary constant for samples k and l changes noticeably because of possible losses of chain-shortened 'hydrocellulose' during bleaching (Zeronian and Inglesby 1995;Cardamone and Marmer 1995), which we anticipate to be associated with the fiber damage. In an attempt to check this hypothesis, the values of capillary constant are plotted against DP for the samples investigated (Fig.…”

Section: Wetting Propertiesmentioning

confidence: 91%

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Analysis of the effects of catalytic bleaching on cotton

et al. 2007

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Hydrogen peroxide can be catalyzed to bleach cotton fibers at temperatures as low as 308C by incorporating dinuclear tri-l-oxo bridged manganese(IV) complex of the ligand 1,4,7-trimethyl-1,4,7-triazacyclononane (MnTACN) as the catalyst in the bleaching solution. The catalytic system was found to be more selective under the conditions applied than the non-catalytic H 2 O 2 system, showing better bleaching performance while causing slightly lower decrease in degree of polymerization (DP) of cellulose. In order to gain fundamental knowledge of the bleach effect on cotton fibers and cellulose as its main component, especially after catalytic bleaching, X-ray Photoelectron Spectroscopy (XPS) was used to study surface chemical effects. The Washburn method was applied to investigate wetting properties, and liquid porosity was used to obtain pore volume distribution (PVD) plots. Parallel analyzes performed on model cotton fabric, i.e. ''clean'' cotton fabric stained with morin -a pigment regularly found in native cotton fiber, helped to differentiate between pigment oxidation and other bleaching effects produced on the (regular) industrially scoured cotton fabric. Bleaching was not limited to the chemical action but also affected cotton fiber capillary parameters most likely due to the removal of non-cellulosic materials as well as chain-shortened cellulose.

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Section: Wetting Propertiesmentioning

confidence: 91%

“…pulp/paper or textiles. If the bleaching parameters are carefully controlled, hydrogen peroxide causes low damage to cellulose, at the same time imparting permanent whiteness to the bleached material (Cardamone and Marmer 1995).…”

Section: Introductionmentioning

confidence: 99%

Analysis of the effects of catalytic bleaching on cotton

et al. 2007

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“…The main purpose of the bleaching process is to modify and/or remove the lignin and lignin degradation products, extractive substances, metal ions, non-cellulosic carbohydrate components and any coloring materials in the paper poultry by using appropriate chemical substances and systems (Singh, 1978). Sodium hypochlorite (NaClO) is stable above pH 10 (Cardamone and Marmer, 1995). It is a very cheap oxidizer, with higher redox potential than hydrogen peroxide, and bleaches rapidly at room temperature (Karmakar, 1999;Ibrahim et al, 2010).…”

Section: Ključne Riječi: Linter Celuloza Izbjeljivanje Natrijev Hipmentioning

confidence: 99%

Evaluation of Linter Cellulose as an Alternative Raw Material for Tissue Paper Production

2017

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• The study was carried out to evaluate Linter Cellulose (LC) as an alternative raw material for tissue paper production. Since LC is generally dark brown in color, it must be bleached before being used in tissue paper production. Bleaching process was applied to LC after impurities and oils were removed. LC was bleached in 9 different conditions with sodium hypochlorite (NaClO (Reeve, 1996). The main purpose of the bleaching process is to modify and/or remove the lignin and lignin degradation products, extractive substances, metal ions, non-cellulosic carbohydrate components and any coloring materials in the paper poultry by using appropriate chemical substances and systems (Singh, 1978). Sodium hypochlorite (NaClO) is stable above pH 10

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“…A number of attempts have been discussed the possibility of modifying the cellulosic component via pre-amination or cationization for facilitating the union dyeing of both components [1][2][3][4][5][6][7] . With this in mind, the present work is aimed at exploring the effect of pre-finishing of wool=viscose and cotton=wool blends using different finishing formulations and conditions on the extent of subsequent union dyeing using anionic dyestuffs.…”

Section: Introductionmentioning

confidence: 99%

Union Dyeing of Easy Care-Finished Wool/Viscose and Cotton/Wool Blends

Ibrahim

Allam

EL-Hosamy

et al. 2006

Polymer-Plastics Technology and Engineering

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Wool/viscose (60/40) and cotton/wool (70/30) blended fabrics have been easy-care finished in the presence of certain nitrogenous additives to produce readily dyeable cationic cellulose for competitive dyeing with wool dyes. The enhancement of easy care properties and improvement in post-dyeing of the finished fabrics were determined by the nature of substrate (wool/viscose > cotton/wool), type of catalyst (ammonium persulfate > ammonium sulfate > ammonium chloride > none), the kind of nitrogenous additive, as well as the type of polyethylene glycol (PEG-400 > PEG-200 > NONE). Using triethanolamine hydrochloride as a reactive/nitrogenous additive (30 g/L) in the finishing formulation as well as curing at 150 C/ 3 min make it possible to attain higher fabric resiliency along with better dye receptivity, regardless of the used anionic dye. However, the change in dyeing and fastness properties of obtained dyeing is governed by the nature of the anionic dye.

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The whitening of textiles

Cited by 19 publications

References 27 publications

Analysis of the effects of catalytic bleaching on cotton

Analysis of the effects of catalytic bleaching on cotton

Evaluation of Linter Cellulose as an Alternative Raw Material for Tissue Paper Production

Union Dyeing of Easy Care-Finished Wool/Viscose and Cotton/Wool Blends

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