| Titre : |
Automated clean leather dyeing assisted by wringing, ultrasound and microwave |
| Type de document : |
texte imprimé |
| Auteurs : |
Ying Gong, Auteur ; Kang Cheng, Auteur ; Tao Zhang, Auteur ; Wuyong Chen, Auteur |
| Année de publication : |
2011 |
| Article en page(s) : |
p. 127-132 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Cuirs et peaux -- Teinture
Diffractométrie de rayons X
Micro-ondes
Microscopie électronique à balayage
Ultrasons
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
A “clean” leather dyeing was designed with wringing (8-10 kg/cm2), ultrasound (28 kHz, 2.4 W/cm2) and microwave (2450 MHz, 10 W/L). Twenty leathers samples were successively colored with this method in a laboratory scale trial. The dye exhaustion (%), the color values and the color rub fastnesses were determined. Also, the grain surface and the cross-section of the leathers were analyzed before and after dyeing. As presented, it only required 5 minutes to color with this method and the dye exhaustions averaged 2.3%, helpful for the recycling of the dye solution. The color for the test group of ten leathers varied within a small range ( ?E <1) when the solution was directly recycled without dye replenishment. The color fastnesses reached as much as the 4-5 dry rub scale and 3 wet rub scale after the leathers were coated with a typical shoe upper finishing formula. Furthermore, the grain and the collagen fibers were not significantly damaged during the dyeing process as demonstrated by Scanning Electron Microscope and X-ray diffraction analysis. In summary, this clean and quick dyeing could be considered a potential option for leather dyeing. |
| Note de contenu : |
- EXPERIMENTAL : Materials - experimental set-up - Leather dyeing - Analysis methods : analysis of dye exhaustion - determination of color difference : Determination of fastness to wet and dry rub - scanning electron microscopc study (SEM) - X-ray diffraction study (XRD)
- RESULTS AND DISCUSSION : Dye exhaustion - color measurements and fastnesses - SEM analysis - XRD analysis. |
| En ligne : |
https://drive.google.com/file/d/1CQ_v-nJ9ZzVIL7AXa72ZpxuKiLDcpZRP/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11315 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CVI, N° 4 (04/2011) . - p. 127-132
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Automated clean leather dyeing assisted by wringing, ultrasound and microwave in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVI, N° 4 (04/2011)
