Evaluation of degreasers as brine curing additives / Eduard Hernàndez Balada in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIV, N° 5 (05/2009)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CIV, N° 5 (05/2009) . - p. 169-176 Titre : Evaluation of degreasers as brine curing additives Type de document : texte imprimé Auteurs : Eduard Hernàndez Balada, Auteur ; William N. Marmer, Auteur ; Peter H. Cooke, Auteur ; John G. Phillips, Auteur Année de publication : 2009 Article en page(s) : p. 169-176 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The length of time needed for brine curing of raw hides and skins, a minimum of 18 h, is a time consuming process. In this paper we initially report the results of an investigation of the stratigraphic distribution of sodium chloride and water in fleshed hides cured for varying intervals of time. We demonstrated that salt entered the hide mainly from the flesh side. Water, on the other hand, was withdrawn from both sides of the hide; the epidermis acted as a semipermeable membrane. Three commercial degreasers as well as a glycolipid surfactant (sophorolipid) were tested as brine curing additives and their efficiency evaluated according to the moisture, salt, salt saturation and fat content levels in the brine cured hide. One of the commercial degreasers, when used at 0.5% w/w, significantly removed fat from the hide as well as enhanced the uptake of salt. The sophorolipid also was an effective degreasing agent, decreasing the fat content of the brine-cured hide and, if used in excess, significantly increasing the uptake of salt. The data presented here confirmed that the usage of an appropriate degreasing agent in the brine is a suitable option for reducing the turn-around times in raceways and thus creating additional curing capacity. En ligne : https://drive.google.com/file/d/1tmXZ4iHYvy-Z0bbk5GIKX19K_j6wLkuB/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5218 [article]

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Wet process technology I. determination of precision for various analytical procedures / Maryann M. Taylor in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXI (Année 1986)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXI (Année 1986) . - p. 4-18 Titre : Wet process technology I. determination of precision for various analytical procedures Type de document : texte imprimé Auteurs : Maryann M. Taylor, Auteur ; Edward J. Diefendorf, Auteur ; John G. Phillips, Auteur Année de publication : 1986 Article en page(s) : p. 4-18 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : A study of the chemical and physical changes which take place as a raw hide is converted to the blue was initiated at the Eastern Regional Research Center(ERRC) in Philadelphia. Using the procedures outlined in a detailed survey distributed to individual members of the industry, pilot scale tanning runs were conducted. Accurate and reproducible procedures for sampling and analyses is given along with an evaluation of the precision of the methods which were used. Reports of the actual studies will be presented in later publications. En ligne : https://drive.google.com/file/d/1uHchObE4uuyxOgjM6WQSqBnDmqosj0lS/view?usp=share [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9121 [article]

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Wet process technology II. the effect of process variations on hides and effluents + / Maryann M. Taylor in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXI (Année 1986)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXI (Année 1986) . - p. 19-34 Titre : Wet process technology II. the effect of process variations on hides and effluents + Type de document : texte imprimé Auteurs : Maryann M. Taylor, Auteur ; Edward J. Diefendorf, Auteur ; John G. Phillips, Auteur ; Mary V. Hannigan, Auteur ; Bohdan Artymyshyn, Auteur ; Stephen H. Feairheller, Auteur ; David G. Bailey, Auteur Année de publication : 1986 Article en page(s) : p. 19-34 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Detailed processes supplied by cooperating tanners describing the conversion of raw hides to the blue were duplicated in the Eastern Regional Research Center pilot scale tannery. Chemical analyses of the hides and the effluents were carried out on sample from each processing stage. In addition, physical testing and histological evaluation were performed on the hide at each stage of processing. This paper discusses some of the effects of process variations on the compositions of the hides and the effluents. En ligne : https://drive.google.com/file/d/1lrs1SnxaDF4-kuSGBj4C-9Iorc4otKFl/view?usp=share [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9122 [article]

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Wet process technology III. development of a standard process / Maryann M. Taylor in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXI (Année 1986)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXI (Année 1986) . - p. 43-61 Titre : Wet process technology III. development of a standard process Type de document : texte imprimé Auteurs : Maryann M. Taylor, Auteur ; Edward J. Diefendorf, Auteur ; Mary V. Hannigan, Auteur ; Bohdan Artymyshyn, Auteur ; John G. Phillips, Auteur ; Stephen H. Feairheller, Auteur ; David G. Bailey, Auteur Année de publication : 1986 Article en page(s) : p. 43-61 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : A standard process which converts rawhide to the blue was developed which was typical of current techniques. A baseline of information was obtained which could be used to evaluate innovative processes. A description will be given of the process, its reproducibility, and the resulting chemical and physical analyses. En ligne : https://drive.google.com/file/d/1QytjRCS70D7OaMSlJBdX2cDizAfMJY-6/view?usp=share [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9123 [article]

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