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Dyeing properties of natural leather using red natural dyes / Sang Chul Lee in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 98, N° 6 (11-12/2014)
[article]
Titre : Dyeing properties of natural leather using red natural dyes Type de document : texte imprimé Auteurs : Sang Chul Lee, Auteur ; Eun Chul Shin, Auteur ; Won Ju Kim, Auteur Année de publication : 2014 Article en page(s) : p. 252-258 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Champignons microscopiques
Cochenilles
Colorants végétaux
Cuirs et peaux -- Teinture
Extraction (chimie)
Frottements (mécanique)
Photostabilité
Plantes tinctorialesIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : An environment-friendly, non-toxic, red-dyed leather was developed using four naturel dyes -cochineal, lac, beet red, and monascus. The affects of the dye concentration, dyeing time, and temperature on the light fastness, rubbing fastness, colour difference, and K/S values (i.e., each dyed sample's apparent depth value) were investigated to find the hast natural dye for eco-dyeing the Ieather. When dyeing the leather red, the K/S value generally increased as concentrations of cochineal, monascus, lac, or beet red dyes were increased. However, the increase in the K/S value was substantially lowered when more than 5.0% o.w.l. (on the weight of Ieather) was used, indicating that the optimal dye concentration is 5.0 % o.w.l. A dyeing Urne of 100 minutes was found to be optimal because the K/S value stabilized aller 100 minutes. The use of cochineal 5.0 % o.w.l. resulted in a 9.18 RP (plum) and the use of lac 5.0 % o.w.l. resulted in a 9.52 RP. These resuits indicate colours that were the closest to red. Their ?E* values, which were the levelling property indicators of the leather, were 0.56 and 0.13, respectively, showing superior characteristics compared to the other two dyes. Note de contenu : - EXPERIMENTAL PROCEDURES : Materials and apparatus - Process of leather manufacturing and extraction of natural dyes - Measuring of physical properties
- RESULTS AND DISCUSSION : pH change with natural dye content - Effect of dyeing time on colour - Effect of the concentration of natural dyes on colourEn ligne : https://drive.google.com/file/d/1lYRs_tVWfcynfmT9IFH0GUGfzUE5c16R/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22646
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 98, N° 6 (11-12/2014) . - p. 252-258[article]Réservation
Réserver ce documentStudy on possibility of oil migration according to fatliquoring agent characteristics / Jae-Hyung Park in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 102, N° 5 (09-10/2018)
[article]
Titre : Study on possibility of oil migration according to fatliquoring agent characteristics Type de document : texte imprimé Auteurs : Jae-Hyung Park, Auteur ; Young-Woo Kim, Auteur ; Won Ju Kim, Auteur ; In-Kye Paik, Auteur ; Eun-Ji Kim, Auteur ; Hyun-Dae Cho, Auteur ; Hyung-Joon Youn, Auteur ; Han-Do Kim, Auteur ; Eun-Chul Shin, Auteur Année de publication : 2018 Article en page(s) : p. 247-250 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cuir dans les automobiles
Cuirs et peaux -- Analyse
Cuirs et peaux -- Détérioration
Fourier, Spectroscopie infrarouge à transformée de
Huiles et graisses
Hydrolyse
Produits chimiques -- Migration
Produits de nourriture du cuir
Réflexion totale atténuéeIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The natural leather used for car interior materials is a traditional and high-quality material that can be applied to diverse purposes such as the steering wheel, knob, seat and internal trim. However, continuous friction and sweat from the driver causes the hydrolysis of high-molecular resins and the painted surfaces weakened under the high-temperature conditions of the car interior often lead to slipperiness and increased lustre owning to the migration of the fatliquoring agent. Thus, this study investigated the bonding between the leather and different types of fatliquoring agent, and their influence on oil migration by facilitating ageing (hydrolisis). The results revealed that the silicon- and lecithin-based fatliquoring agents had a significant influence on oil migration owning to the low bonding to the leather under the ageing condition. Note de contenu : - EXPERIMENTAL PROCEDURES : Materials and apparatus - Process of leather manufacturing and measuring of physical properties
- RESULTS AND DISCUSSION : Fat content in leather - Oil migration after hydrolisis - Attenuated total reflection-Fourier transform infrared characterisation of oil migration
- Table 1 : Characteristics of fatliquoring agent
- Table 2 : Process for fatliquoring with chrome-tanned steer hide leather
- Table 3 : Extraction solvents of fat in leather
- Table 4 : Oil contents of leather sample treatment with fatliquoring agent according to extraction solvents
- Table 5 : The results of monitoring of the oil migration on each specimen
- Table 6 : Oil absorption film after oil migration
- Table 7 : Main component of migration oilEn ligne : https://drive.google.com/file/d/1R2nzOqKwZm8GXwa9AsqB8OCMZcyvdHUp/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31108
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 102, N° 5 (09-10/2018) . - p. 247-250[article]Réservation
Réserver ce document