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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)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CV, N° 2 (02/2010) . - p. 34-40 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 -- Défauts Index. 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 : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8156 [article]

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Comparison of finishing application for aliphatic polyurethane dispersions and polyurethane/polyacrylate composite emulsions / Shuling Chai in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CV, N° 2 (02/2010)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CV, N° 2 (02/2010) . - p. 41-50 Titre : Comparison of finishing application for aliphatic polyurethane dispersions and polyurethane/polyacrylate composite emulsions Type de document : texte imprimé Auteurs : Shuling Chai, Auteur ; Zhongyi Zhang, Auteur Année de publication : 2010 Article en page(s) : p. 41-50 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Alliages polymères Composés aliphatiques Cuirs et peaux Dispersions et suspensions Emulsions Polyacrylates Polyuréthanes Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Aliphatic and aromatic cationic aqueous polyurethane (PU-1, PU-2), aliphatic anionic aqueous polyurethanes (PU-3, PU-4) were prepared with polyether glycol, polyether polyol, toluene diisocyanate and isophorone diisocyanate as raw materials. The core-shell polyurethane/polyacrylate composite emulsions (PUA-5, PUA-6) as well as interpenetrating PUA composite emulsions (PUA-7£¬PUA-8) were prepared by seeded emulsion polymerization, the aliphatic anionic aqueous PU dispersions were used as seed particles, glycidyl methacrylate was used as the bridge of core and shell in second stage polymerization. A study using different finishing applications for pigskin garment leather was carried out with the aliphatic anionic PU dispersion, the core-shell and interpenetrating structure PUA hybrid emulsions as film forming agents. The wet rub fastness, solvent resistance, flex resistance, adhesive fastness of the coating in finished leather were measured respectively. The results are as follows: (1) the anionic PU dispersions, the core-shell and interpenetrating PUA composite emulsions showed good film forming, good covering grain damage and mending properties, and strong adhesive force to leather. The finished leathers were soft, flat, smooth, non-sticky and their grain patterns were clear; (2) The interpenetrating PUA is better than core-shell PUA and the core-sell PUA is better than the PU dispersion at wet rub fastness, solvent resistance, adhesive resistance. Both PU dispersion and core-shell PUA were better than the interpenetrating PUA at flex resistance by comparison. En ligne : https://drive.google.com/file/d/1ZlcX0wzWcoxb_Ue3dND3kXA-U6eTnyNA/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8163 [article]

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Behavior of leather as a protective heat barrier and fire resistant material / Anna Bacardit in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CV, N° 2 (02/2010)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CV, N° 2 (02/2010) . - p. 51-61 Titre : Behavior of leather as a protective heat barrier and fire resistant material Type de document : texte imprimé Auteurs : Anna Bacardit, Auteur ; M. D. Borràs, Auteur ; Jaume Soler, Auteur ; V. Herrero, Auteur ; J. Jorge, Auteur Année de publication : 2010 Article en page(s) : p. 51-61 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Cuir Essais de comportement au feu Protection thermique Résistance thermique Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Leather is a natural material with many applications: automotive, domestic upholstery, buildings, aviation, maritime, personal safety, etc. For each of these sectors, fire behavior is a field of particular interest. Unfortunately, there are many testing methods and different flammability standards depending on material application and end use. Therefore, there are different ways of approaching the whole flammability issue. In this work, different approaches for analyzing the fire resistance of leather are examined: (i) influence of the type of tannage, (ii) influence of the type of leather, (iii) influence of the type of retannage, (iv) influence of the type of fatliquor, and (v) influence of the use of flame retardants. The results indicate that leather presents natural fire resistance. However, the type of leather, type of tannage, retannage and fatliquor affect the flammability behavior of leather. In addition, the use of flame retardants slightly improves the smouldering properties of leather. En ligne : https://drive.google.com/file/d/1xi66mAyVuy55q-L8iz9H4coTTKPI7VNN/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8164 [article]

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Possibility of using sigla tree (liquidambar orientalis mill. var orientalis) storax as bactericide in the soaking float / Eser Eke Bayramoglu in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CV, N° 2 (02/2010)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CV, N° 2 (02/2010) Titre : Possibility of using sigla tree (liquidambar orientalis mill. var orientalis) storax as bactericide in the soaking float Type de document : texte imprimé Auteurs : Eser Eke Bayramoglu, Auteur Année de publication : 2010 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Antibactériens Liquidambar orientalis Peaux brutes -- Trempe Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : An increasing amount of research work has been directed to limiting the use of synthetic biocides for preventing microorganism formation on finished leather, and the development of more suitable substitute products. Much of this work has been directed towards the protective effects of natural bioactive materials. The known antibacterial impact of storax against a variety of bacteria has now put this technology on the leather industry research agenda. In the present study, Sýðla (Liquidambar orientalis Mill.var orientalis) storax was investigated for antibacterial activity during the soaking float. In this investigation, 1% , 2%, 5% of storax and 1% essential oil of Origanum onites mixed with the storax were tested for their antimicrobial activity in parallel with 50 % organosulfur compound as commercial bactericides commonly used in the leather. The results showed that storax has an antibacterial effect in soaking with increasing concentrating rates and when it is mixed with the oil of oregano, the bactericidal activity was increased. It was found that Sýðla Storax contains 1.39% essential oils and styrene accounts for 96.55% of this oil. These findings suggested Sýðla storax and oregano essential oil has synergic effect and the mixture of Sýðla storax and oregano essential oil could be used as bactericidal agents in leather industry. En ligne : https://drive.google.com/file/d/1_w49wmkaBMkEOkAKwyFHWuRSO8AEuj5_/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8165 [article]

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