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675 : Technologie du cuir et de la fourrure |
Ouvrages de la bibliothèque en indexation 675
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Photochromatic acid dyes for leather / M. R. B. Shah in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CII, N° 7 (07/2007)
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Titre : Photochromatic acid dyes for leather Type de document : texte imprimé Auteurs : M. R. B. Shah, Auteur ; Robert M. Christie, Auteur Année de publication : 2007 Article en page(s) : p. 209-215 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Photochromic materials have a variety of functional and fashionable applications. So far there are no reports of attempts to produce photochromic leather that can change color after exposure to daylight or UV irradiation. In this paper, the application of a specifically-synthesized photochromic acid dye is reported used for the direct coloration of leather, in terms of dyeing, printing and surface coating. The leather obtained successfully changed color under UV irradiation and thus has the potential to be used as fashionable gloving, garment or special types of upper leather and for a variety of other applications in leather and allied industries. A study is reported of the color build up after UV irradiation or sunlight exposure on the photochromic leather, evaluated using color measurement techniques, in relation to a range of processing factors. Wash fastness and photo-stability properties of the photochromic leather were evaluated using specially developed techniques. En ligne : https://drive.google.com/file/d/1Ruy2gYkqZBurxrw9DfCk928sEQTWHuAk/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3347
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CII, N° 7 (07/2007) . - p. 209-215[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 008081 - Périodique Bibliothèque principale Documentaires Disponible Photochromic dyeing / Shah M. Reduwan Billah in LEATHER INTERNATIONAL, Vol. 213, N° 4806 (01-02/2011)
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Titre : Photochromic dyeing Type de document : texte imprimé Auteurs : Shah M. Reduwan Billah, Auteur ; Robert M. Christie, Auteur ; Renzo Shamey, Auteur ; Korshed Alam, Auteur ; Keith M. Morgan, Auteur Année de publication : 2011 Article en page(s) : p. 34-36 Langues : Anglais (eng) Catégories : Cuirs et peaux -- Teinture
Photochromisme
Pigments à effets spéciaux
PolyamidesUn polyamide est un polymère contenant des fonctions amides -C(=O)-NH- résultant d'une réaction de polycondensation entre les fonctions acide carboxylique et amine.
Selon la composition de leur chaîne squelettique, les polyamides sont classés en aliphatiques, semi-aromatiques et aromatiques. Selon le type d'unités répétitives, les polyamides peuvent être des homopolymères ou des copolymères.Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Comparative study on the photochromic colour changing performance of leather with protein and polyamide substrates dyed with photochromic acid dyes. En ligne : https://drive.google.com/file/d/1W6N-Fmvfu7Di71qDmURwlQNvWaLmG08o/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11118
in LEATHER INTERNATIONAL > Vol. 213, N° 4806 (01-02/2011) . - p. 34-36[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012915 - Périodique Bibliothèque principale Documentaires Disponible 012939 - Périodique Bibliothèque principale Documentaires Disponible Photometric determination of chromium (VI) using 1,5-diphenylcarbazide in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 72 (Année 1988)
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Titre : Photometric determination of chromium (VI) using 1,5-diphenylcarbazide Type de document : texte imprimé Année de publication : 1988 Article en page(s) : p. 107-108 Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : 1. Scope : The procedure described is suitable for the determination of chromium(VI) in natural waters, in solutions leached from leather or in waste waters, in concentrations of 0.5-4 mg/litre. The chromium(VI) must be in solution and this is generally the case. The presence of barium, lead and silver ions may lead to the precipitation of chromates ; in such cases the chromium(VI) present would be underestimated..
2. Principle : The procedure involves the photometric determination of chromium(VI) after reactionwith 1,5-diphenylcarbazide. It is based on German standard DIN 38406-E-10-3.
Chromium(VI) oxidises 1,5-diphenylcarbazide to 1,5-diphenylcarbazone which gives rise to a red/violet complex with chromium. the degree of spectral adsorption (i.e. extinctionp of this dye shows a linear relationship to the chromium(VI) concentration and is measured at 550 nm.
Chromium(III) and other metals are precipitated from a phosphate-buffred solution by the addition of aluminium sulphate prior to the chromium(VI) determination. Valency change of chromium due to oxidising or reducing substances is avoided through the addition of sulphites in the neutral sample followed by oxidation with hypochlorite.En ligne : https://drive.google.com/file/d/1-CKqppZfCQR3idpH7T8ARtsBvczGgBR4/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9100
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Code-barres Cote Support Localisation Section Disponibilité 007134 - Périodique Bibliothèque principale Documentaires Disponible Physical and antimicrobial characteristics of Aloe Vera treated split suede leather / Behzat Oral Bitlisli in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CV, N° 2 (02/2010)
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Titre : Physical and antimicrobial characteristics of Aloe Vera treated split suede leather Type de document : texte imprimé Auteurs : Behzat Oral Bitlisli, Auteur ; I. Yasa, Auteur ; Ahmet Aslan, Auteur ; B. H. Cadirci, Auteur ; Bahri Basaran, Auteur Année de publication : 2010 Article en page(s) : p. 34-40 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Aloe vera et constituants
Antimicrobiens
Cuirs et peaux -- DéfautsIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : This study examined some characteristics of split suede leathers that were treated with a range of Aloe vera concentrations. Following the tanning process of split suede leathers, Aloe vera was applied at five different concentrations (2%, 4%, 6%, 8% and 10%). Leathers treated with Aloe vera took on a yellowish-brown color. Also, the moisture content and softness of the leathers increased according to the concentration of Aloe vera used, and the highest levels of both moisture content and softness were obtained at 8% and 10% application concentrations. The leathers that were treated with 6% or more Aloe vera had slightly higher tear load values when compared with control leathers. In addition, ethanol-based and water-based extracts of Aloe vera showed antimicrobial properties against some Gram (-) and Gram (+) bacteria and C. albicans. En ligne : https://drive.google.com/file/d/1A3fMyV6DVufBDJU8hbuj0PEaBWB7Lxq5/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8156
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Code-barres Cote Support Localisation Section Disponibilité 011917 - Périodique Bibliothèque principale Documentaires Disponible Physical and fastness properties of leather dyed with a natural dye extracted from beetroot peels using a biomordant / Louret A. Andalo in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 107, N° 6 (11-12/2023)
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Titre : Physical and fastness properties of leather dyed with a natural dye extracted from beetroot peels using a biomordant Type de document : texte imprimé Auteurs : Louret A. Andalo, Auteur ; Paul K. M. Sang, Auteur ; Rose Tanui, Auteur Année de publication : 2023 Article en page(s) : p. 226-231 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acacia et constituants
Colorants végétaux
Cuirs et peaux -- Propriétés mécaniques
Cuirs et peaux -- Propriétés physiques
Cuirs et peaux -- Teinture
Cuirs et peaux de chèvres
Mordants (chimie)
Post-tannage
Tannage au chromeIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Leather dyeing is an essential process in the leather industry, where synthetic dyes are predominantly used. However, the environmental concerns associated with synthetic dyes have led to rising interest in natural dyes as sustainable alternatives. The use of biomordants is however, gaining attention due to their eco-friendly nature and potential to enhance dye fixation and colour fastness. This study aimed at determining the physical and fastness properties of leather dyed using natural dye extract from beetroot peels with the assistance of a biomordant derived from Acacia nilotica barks and banana pseudo stem sap. The dyeing process involved the use of the biomordant in both a pre and post-mordanting technique. Various fastness properties of dyed leather were investigated to assess the quality and durability of the dyeing process including water spotting fastness according to ISO 15700, mild washing fastness according to ISO 15703, and rub fastness (dry and wet rub fastness) according to ISO 11640. To determine the effect of the biomordant on the strength properties of the leather, the physical properties of the dyed leather were also evaluated. The tensile and tear strength of the dyed leather were measured on an Instron using IUP 6. The dye bath exhaustion was measured using spectrophotometric analysis. The dyed leatherʼs fastness properties were discovered to be good to excellent on a grey scale of 5. All of the samples exceeded the minimum recommended values (UNIDO 1996) for tensile strength (>20N/mm2), percentage elongation at break (>40%), and tear strength (>30N/mm). The samples dyed with Acacia nilotica bark as a biomordant had the highest dye bath exhaustion, followed by banana pseudo stem sap, and leather dyed without any mordant had the lowest dye bath exhaustion. According to the results obtained in this study, the use of biomordant in the dyeing of leather with natural dye from beetroot peels improved the fastness properties of the dyed leather as well as the strength of the resulting leather. Furthermore, the biomordant promoted dye uptake. Note de contenu : - MATERIALS AND METHODS : Materials - Methods - Physical properties of the dyed leather
- RESULTS AND DISCUSSION : Analysis of the physical properties of the dyed leather -
- Table 1 : Process for pre tanning goatskin
- Table 2 : Process for chrome tanning of goat wet-blue
- Table 3 : Post tanning process
- Table 4 : Tensile strength and percentage elongation of the dyed leather
- Table 5 : Tear strength of the dyed leather
- Table 6 : Fastness properties of the dyed leather both the mordanted and the umordanted samples on a grey scale of 5En ligne : https://drive.google.com/file/d/1G2w2KoZPKkzUblyRJeLJYFRmat4LDXbz/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40242
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Code-barres Cote Support Localisation Section Disponibilité 24370 - Périodique Bibliothèque principale Documentaires Disponible Physical gelation of gelatin solutions : effect of gelatin concentration, pH, ionic strength and solvents / Guangfeng Feng in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 103, N° 3 (05-06/2019)
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PermalinkPhysical property studies for leather lubricated with various types of fatliquors / Cheng-Kung Liu in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVII, N° 11 (11/2002)
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PermalinkPhysical testing of karakul pelts / Alan E. Russell in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 57 (Année 1973)
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PermalinkPhysico-insight on sewability properties of crust leathers using melamine syntan and synthetic fatliquor / Gladstone Christopher Jayakumar in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVII, N° 10 (10/2022)
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PermalinkPhysicochemical properties of collagen, gelatin and collagen hydrolysate derived from bovine limed split waste / Zhongkai Zhang in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 90, N° 1 (01-02/2006)
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PermalinkPhysicochemical properties of collagen isolated from calf limed splits / Guoxing Li in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVIII, N° 6 (06/2003)
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PermalinkPhysiological and cell biological properties in vitro of collagen isolated from calf limed splits / G. I. Ly in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 88, N° 2 (03-04/2004)
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PermalinkPigment finishing in the drum / H. Wachsmann in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXV (Année 1990)
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PermalinkPigments in drum coloring - A way to upgrade leather / H. Slaats in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXXI, N° 4 (04/1996)
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PermalinkPigments in modern leather finishing / M. J. Osgood in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 74 (Année 1990)
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PermalinkPilot-plant study of flocculation of suspended solids in lime-sulfide unhairing effluents / E. H. Bitcover in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXV (Année 1980)
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PermalinkA pilot plant study of the effects of quebracho and wattle on anaerobic digestion / J. David Eye in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XXVII (Année 1982)
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PermalinkUne pince auto-serrante pour le montage des selles / Jérôme Darragon in CTC ENTREPRISES, (10/2012)
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PermalinkPlanar chromatographic analysis of leather dyes - A review / D. Muralidharan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 79, N° 6 (11-12/1995)
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