Accueil
Détail de l'auteur
Auteur Arife Candas Adigüzel Zengin |
Documents disponibles écrits par cet auteur
Ajouter le résultat dans votre panier Affiner la recherche
Carbon footprint of a tanning company / Eylem Kiliç in LEATHER INTERNATIONAL, Vol. 217, N° 4863 (08/2016)
[article]
Titre : Carbon footprint of a tanning company Type de document : texte imprimé Auteurs : Eylem Kiliç, Auteur ; Rita Puig, Auteur ; Gökhan Zengin, Auteur ; Arife Candas Adigüzel Zengin, Auteur Année de publication : 2016 Article en page(s) : p. 20-23 Langues : Anglais (eng) Catégories : Bilan des émissions de gaz à effets de serre
Cuirs et peaux -- Industrie -- Aspect de l'environnement
Cuirs et peaux -- Industrie -- Turquie
Tannage -- Aspect de l'environnementIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Over the past few decades, climate change has evolved into an issue of global concern. The measures taken to reduce greenhouse gas emissions, and the significant and increasing awareness on the environmental impact of the production processes, force leather manufacturers to meet higher environmental standards and improve the sustainability of the leather tanning process.
The leather industry is one of the significant sectors of the Turkish economy in terms of industrial production, employment and export earnings. However, there is a gap in the literature regarding a carbon footprint assessment of the Turkish leather industry. It is important to analyse the leather production processes in order to identify the 'hotspots' and environmental improvements that could transform the constraints into opportunities for improving the environmental performances of Turkish tanneries. Considering these aspects, this study aims to provide basic information, and raise awareness of carbon emissions and energy efficiency in Turkish leather production.Note de contenu : - FIGURES : 1. Turkey's electricity mix - 2. Greenhouse gas emission values for each scope - 3. Contribution of different processes considered in Scope 3 to total carbon footprint - 4. Relative contribution of greenhouse gas emissions from different processes to total carbon footprint of Turkish tannery En ligne : https://drive.google.com/file/d/1W2yVVNtaYZLalZo0FGHQnhkDypgOWphj/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26904
in LEATHER INTERNATIONAL > Vol. 217, N° 4863 (08/2016) . - p. 20-23[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 18278 - Périodique Bibliothèque principale Documentaires Disponible Improving the fastness properties of thermochromic leathers : the effects of UV absorbent and cross-linkers / Arife Candas Adigüzel Zengin in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 101, N° 5 (09-10/2017)
[article]
Titre : Improving the fastness properties of thermochromic leathers : the effects of UV absorbent and cross-linkers Type de document : texte imprimé Auteurs : Arife Candas Adigüzel Zengin, Auteur ; Eylul Kucukakin, Auteur ; Behzat Oral Bitlisli, Auteur Année de publication : 2017 Article en page(s) : p. 242-249 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Absorbants et adsorbants
Absorbeurs de rayonnement ultraviolet
Additifs
Colorimétrie
Photostabilité
Pigments à effets spéciaux
Résistance à l'abrasion
Réticulants
ThermochromieIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The emerging new applications of thermochromic pigments in leather industry could give a promising opportunity to create innovative designs of smart thermochromie leathers and these leathers are well known with their colour changing effect depending on thermal activation temperature of the thermochromic pigments. A long product his also needed for thermochromic leathers due to the demand for additive use which will enhance the fastness properties of the microencapsulated thermochromic pigments. This study aimed at increasing the light and rubbing fastness values of the leathers that change colour with temperature. Touch (magenta ; 31°C) and cold (blue; 15°C) activated two thermochromic pigments were used in order to provide the colour change of the finished leathers, UV absorbent and Cross-linking chemical additives were used along. with thermochromic pigments in the finishing procedure to increase the fastness properties of the leathers. Colour change features, rubbing and light fastness properties of thermochromic leathers were analyged by a spectrophotometric method in addition to ISO standards of related fastness properties. The use of a UV absorbent in the finishing procedure lead to an increase in the light fastness values of touch and. cold activated therrnochromic leathers. Likewise it was revealed that the use of cross-linker in the top coat of finishing process.improved the rubbing fastness properties of thermochromic leathers. Note de contenu : - Colour measurements of thermochromic leathers
- Fastness properties of thermochromic leathersEn ligne : https://drive.google.com/file/d/1ZrhUEu363ZeuXd_JhEoD124dYFZdDsOG/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29239
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 101, N° 5 (09-10/2017) . - p. 242-249[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 19275 - Périodique Bibliothèque principale Documentaires Disponible Quantitative determination of enzymatic and chemical dehairing of skins by an electronic force sensor / Arife Candas Adigüzel Zengin in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVI, N° 12 (12/2011)
[article]
Titre : Quantitative determination of enzymatic and chemical dehairing of skins by an electronic force sensor Type de document : texte imprimé Auteurs : Arife Candas Adigüzel Zengin, Auteur ; Behzat Oral Bitlisli, Auteur ; N. T. Eriksen, Auteur Année de publication : 2011 Article en page(s) : p. 367-371 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Epilage enzymatique
KératinasesIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The dehairing effect of 2 keratinolytic enzyme preparations from liquid cultures of Bacillus cereus IZ-06b and B. cereus IZ-06r and 3 commercial proteolytic enzyme formulations used in leather manufacturing for soaking, dehairing, and bating processes were quantified by a computerized force sensor. Measurements of the force needed to remove individual hairs from skin, showed that the keratinolytic enzymes did loosen hairs from sheepskins. These enzyme preparations may therefore be useful alternatives to present days’ beamhouse chemicals, although the traditional dehairing procedure with lime and sulphide still exhibited the strongest effect in hair loosening. Note de contenu : - Enzymatic preparations and production
- Enzymatic and chemical treatment of skins
- Force measurements
En ligne : https://drive.google.com/file/d/1IT2Yqo-PafgoRiJ4unqwojTatjMJUPGi/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12898
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CVI, N° 12 (12/2011) . - p. 367-371[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 13609 - Périodique Bibliothèque principale Documentaires Disponible Skin characteristics of Cervus Elaphus L. from Republic of Tuva in Russia / Urana Dandar in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIX, N° 5 (05/2014)
[article]
Titre : Skin characteristics of Cervus Elaphus L. from Republic of Tuva in Russia Type de document : texte imprimé Auteurs : Urana Dandar, Auteur ; Selime Menteş Çolak, Auteur ; Remziye Deveci, Auteur ; Arife Candas Adigüzel Zengin, Auteur ; Gökhan Zengin, Auteur Année de publication : 2014 Article en page(s) : p. 146-153 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation
Chimie analytique
Cuirs et peaux de cerfs
Histochimie
Morphologie (matériaux)Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Characteristics of an animal raw skin are closely related to the physical properties of finished leather obtained from the skin. Although numerous studies have been performed on determination of physical properties of tanned deerskin, characteristics of raw deerskin have not yet been described in literature. In the present study, data on morphological, histochemical and chemical characteristics of wild red deer (Cervus elaphus L.) skins obtained from Republic of Tuva within the Russia Federation are presented and the relevant differences between skins of other animal species described. Table Top Scanning Electron Microscopy (TSEM) and Scanning Electron Microscopy (SEM) were used to determine the morphological characteristics of raw deerskins. For histochemical studies the cross section of skins were observed by Research Microscopy (RM). Hydroxyproline content, Total Kjeldahl Nitrogen (TKN), volatile matter, fat content, water-soluble-matter, sulphated total ash and fatty acid contents of raw deerskins were analyzed to further characterize the chemical composition of deerskin. Deerskin has comparatively higher TKN values, lower fat content with higher unsaturated fatty acid ratio, when compared to sheepskin. TSEM and SEM analysis showed that fur fibers and guard hairs of red deer skin were characterized by large cortex and medulla respectively that provides good isolation properties. In addition, high hydroxyproline content, low fat content, and tightly packed collagen fibers revealed by histochemical observations consolidates the long lasting property of deer skin. Assessment of skin characteristics enabled gathering data on physical and chemical properties of red deer skin, which is significant in choosing appropriate potential raw material that will produce the most suitable leather for a specific application. Note de contenu : - EXPERIMENTAL : Materials - Methods - Morphological and histochemical investigations of deer skins - Chemical characterization of deer skins
- RESULTS AND DISCUSSION : Morphological and histochemical investigations of deer skins - Chemical analysisEn ligne : https://drive.google.com/file/d/1HUExMNVJrr2S7qawXJdqI7dimEiEjIJC/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21286
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CIX, N° 5 (05/2014) . - p. 146-153[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 16230 - Périodique Bibliothèque principale Documentaires Disponible Temperature sensitive colour changing leathers with thermochromic pigments / Aybeniz Salom in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 100, N° 6 (11-12/2016)
[article]
Titre : Temperature sensitive colour changing leathers with thermochromic pigments Type de document : texte imprimé Auteurs : Aybeniz Salom, Auteur ; Arife Candas Adigüzel Zengin, Auteur ; Behzat Oral Bitlisli, Auteur Année de publication : 2016 Article en page(s) : p. 314-320 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorimétrie
Cuirs et peaux -- Finition
Cuirs et peaux -- Teinture
Pigments à effets spéciaux
Statistique
ThermochromieIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Thermochromic dyes and pigments offer significant potential for functional and aesthetic design of smart textile materials and in the area of the leather industry potential application of thermochromic pigment dispersions opens up a new issue. In this study, thermochromic pigments were applied in the leather finishing process in order to obtain leathers changing colour with temperature and their potential for innovative design concepts accompanied with an evaluation of technical features of the materials is presented. Two thermochromic pigments, providing colour change at 15°C and 31°C were applied at different proportions in the base-coat of the finishing process. The colour measurements and colour change of the thermochromic leathers were determined by a Minolta CM-3600d spectrophotometer bath prior to and subsequent to the rubbing fastness tests.
To and fro rubbing, crockmeter and light fastness properties of leathers were examined according to TS EN ISO 11640, ASTM D5053 and ISO 105-B02 standards respectively. Leathers coloured with thermochromic pigments showed a significant color changing effect depending on temperature and, as expected, the thermochromic effect was improved by a higher thermochromic pigment proportion in the finishing formulation. Fastness properties of thermochromic leathers, except light fastness, were found to be adequate compared to conventionally finished leathers. The findings suggest that the thermochromic pigments could be alternatively used with concentional conventional pigments in leather finishing applications according to leather fashion trends and different designs of leather products in addition to technical leathers and textiles in the field of medical and protective wear applications.Note de contenu : - MATERIALS AND METHODS
- RESULTS AND DISCUSSION : Colour measurements - Fastness properties of thermochromic leathersEn ligne : https://drive.google.com/file/d/1J_MG-VBKtJSWe-KjiCd-aLI72oNpuA7m/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27667
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 100, N° 6 (11-12/2016) . - p. 314-320[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 18546 - Périodique Bibliothèque principale Documentaires Disponible