[article]
| Titre : |
Biocolorant for leather dyeing applications : an eco-benign evaluation of natural coloring agent |
| Type de document : |
texte imprimé |
| Auteurs : |
C. Kurinjimalar, Auteur ; Gladstone Christopher Jayakumar, Auteur ; A. Tamil Selvi, Auteur ; Rajangam Venba, Auteur ; Malathy Jawahar, Auteur ; Swarna Vinodh Kanth, Auteur |
| Année de publication : |
2021 |
| Article en page(s) : |
p. 322-331 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Analyse spectrale
Caractérisation
Colorants végétaux
Croûte (cuir)On entend par "cuir en croûte" des cuirs ayant subi les opérations jusqu'au tannage, à l'exclusion de toute opération de corroyage ou de finissage, mais qui, par opposition aux wet-blue ont été séchés.
Cuirs et peaux -- Propriétés organoleptiques
Cuirs et peaux -- Teinture
Extraction (chimie)
Garance et constituants
Granulométrie
Solidité de la couleur
Stabilité thermique
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Exploration of biocolorant in leather industry is explored widely owing to its environmental limitation. Besides, employing synthetic dyes in leather process requires high end of pipe treatment due to their complex chemical structure. Therefore, an attempt has been made on exploiting madder root dye (Rubia cordifolia L.) for leather dyeing application. The effect of varying pretreatment regimen on madder colorant extraction, chemical characterizations (including UV-Vis, IR, particle size, zeta potential value, and thermal studies) and optimum operating leather dyeing conditions are studied. The results revealed dissolving medium pH 5, 100oC, and 60 min duration of extraction is optimum. Thus, obtained dye characteristics showed maximum absorption peak at 460 nm, with an average particle size of 166 nm. It also shows a negative zeta potential value of -5.31 which is indicative for dyeing application. The optimum leather dyeing is found at leather pH 5.5, 10% dye concentration and 4 h duration. At optimum dyeing parameters it shows good fastness, perspiration, organoleptic properties without affecting the physical characteristic. Novelty of the present research would lead to develop eco-dyeing method in leather manufacture. Moreover, the study unravels a new application of eco-benign dye to achieve sustainable process. |
| Note de contenu : |
- Graphical abstract
- MATERIALS AND METHODS : Materials - Optimization on madder dye extraction - Preparation and characterization of madder dye - Spectral characteristics - Thermal property analysis - Leather dyeing application and analysis
- RESULTS AND DISCUSSION : Optimization on madder dye extraction - Spectral characteristic analysis - Particle size and stability analysis - Thermal stability analysis - Leather dyeing optimization trials - Effect of concentration (Trial 1) - Effect of pH (Trial 2) - Effect of time (Trial 3) - Effect of mordants (Trial 4) - Grain surface analysis - Characterization of dyed leather - Color fastness analysis - Organoleptic properties analysis
- Table 1 : Post-tanning procedure for dyeing using madder dye
- Table 2 : Color value analysis of crust leather dyed using madder dye
- Table 3 : Organoleptic and fastness properties of crust leather dyed using madder dye |
| DOI : |
https://doi.org/10.34314/jalca.v116i9.4397 |
| En ligne : |
https://drive.google.com/file/d/1rlk3HayVEXpRVU8p3Wop0diFyOqa6Xfd/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36404 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXVI, N° 9 (09/2021) . - p. 322-331
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Biocolorant for leather dyeing applications : an eco-benign evaluation of natural coloring agent in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVI, N° 9 (09/2021)
