Comparative study of moisture permeability of three natural leathers / Zhong Anhua in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 104, N° 6 (11-12/2020)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 104, N° 6 (11-12/2020) . - p. 271-274 Titre : Comparative study of moisture permeability of three natural leathers Type de document : texte imprimé Auteurs : Zhong Anhua, Auteur ; Wang Jie, Auteur ; Ling Yali, Auteur Année de publication : 2020 Article en page(s) : p. 271-274 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cuirs et peaux -- Analyse Cuirs et peaux de bovins Cuirs et peaux de moutons Cuirs et peaux de porcs Humidité Perméabilité Température Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Pigskin, cowhide and sheepskin are commonly used clothing materials in our life. The study of moisture permeability is very important. In this paper, the effects of temperature and humidity on the moisture permeability of three kinds of leather were studied. The results showed that the moisture permeability of the three kinds of leather increased with the increase of temperature, and the rising trends of pigskin and sheepskin were similar. When the temperature was greater than 20°C, their order of moisture permeability was cowhide > pigskin > sheepskin. With the increase of humidity, the moisture permeabilities of the three kinds of leather were close to each other, the changing trend of moisture permeability of pigskin and sheepskin was very similar. The moisture permeability of sheepskin is greatest at high humidity. By comparing the 3d surface and the mathematical model, it was found that humidity has a greater influence on its moisture permeability than temperature. Note de contenu : Pigskin, cowhide and sheepskin are commonly used clothing materials in our life. The study of moisture permeability is very important. In this paper, the effects of temperature and humidity on the moisture permeability of three kinds of leather were studied. The results showed that the moisture permeability of the three kinds of leather increased with the increase of temperature, and the rising trends of pigskin and sheepskin were similar. When the temperature was greater than 20°C, their order of moisture permeability was cowhide > pigskin > sheepskin. With the increase of humidity, the moisture permeabilities of the three kinds of leather were close to each other, the changing trend of moisture permeability of pigskin and sheepskin was very similar. The moisture permeability of sheepskin is greatest at high humidity. By comparing the 3d surface and the mathematical model, it was found that humidity has a greater influence on its moisture permeability than temperature. En ligne : https://drive.google.com/file/d/1qqfYYxLyy-dux_NUF9qJTPa22QcR-v42/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34903 [article]

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The influence of temperature and humidity on the moisture permeability of natural cattle leather / Zhong Anhua in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 104, N° 3 (05-06/2020)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 104, N° 3 (05-06/2020) . - p. 141-144 Titre : The influence of temperature and humidity on the moisture permeability of natural cattle leather Type de document : texte imprimé Auteurs : Zhong Anhua, Auteur ; Ling Yali, Auteur Année de publication : 2020 Article en page(s) : p. 141-144 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Calcul Cuirs et peaux -- Analyse Cuirs et peaux -- Effets de l'humidité Cuirs et peaux de bovins Perméabilité Polymères -- Effets de la température Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : This article mainly studied the incidence of temperature and humidity on the moisture permeability of natural cattle leather. Firstly, it analysed the influence of a single factor of temperature or humidity on the moisture permeability of natural cattle leather based on the measured data. Then it analysed the comprehensive influence of temperature and humidity on the moisture permeability of natural cattle leather. Finally, the regression equation for the comprehensive influence of temperature and humidity on the moisture permeability of natural cattle leather was established by using the principle of least squares method through matlab software. The research shows that the higher the ambient temperature, the better the moisture permeability of natural cattle leather, when the humidity is about 67%, the moisture permeability of natural cattle leather is the highest, when the humidity is about 74%, the moisture permeability of natural cattle leather is the worst. The comprehensive influence surface of temperature and humidity on moisture permeability of natural cattle leather is. z = -0.0006x2 + 0.0485x - 0.0011xy + 7.899y2 - 11.9y + 4.247. Note de contenu : - EXPERIMENTAL DETAILS : Experimental materials - Tools and instruments - Moisture permeability calculation - RESULTS AND DISCUSSION : Influence of temperature on moisture permeability of cattle leather - Influence of humidity on moisture permeability of cattle leather - The comprehensive influence of temperature and humidity on the moisture permeability of natural cattle leather - Appendix : MOCON permeability tester En ligne : https://drive.google.com/file/d/13yr4L4eJMukT3jgn__-xoCXYr1yjnhX5/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34243 [article]

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