Curing methods for wet salted hides / Desmond R. Cooper in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXI (Année 1966)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXI (Année 1966) . - p. 162-170 Titre : Curing methods for wet salted hides : II. The re-use of salt for the curing of hides Type de document : texte imprimé Auteurs : Desmond R. Cooper, Auteur ; A. C. Galloway, Auteur Année de publication : 1966 Article en page(s) : p. 162-170 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Chlorure de sodium -- Analyse Chlorure de sodium -- Réutilisation Cuirs et peaux -- Analyse Cuirs et peaux -- Conservation Cuirs et peaux -- Propriétés physiques Evaluation Peaux brutes -- Salage Qualité -- Contrôle Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Curing trials with large numbers of hides have shown that the repeated use of salt for preparing wet-salted hides is not to be recommended. As the salt is used over again hide and leather quality and leather strength decrease even when the salt is re-used only four times Note de contenu : - Table 1 : Plan of trial for curing hides with used salt - Table 2 : The shrinkage during curing with used salt - Table 3 : Hide quality assessment after 14 days storage - Table 4 : Hide quality assessment after 103 days storage - Table 5 : Final hide quality assessment just prior to soaking - Table 6 : Hide quality assessment on the lime yard rounding table - Table 7 : Blue sorting of leather produced from the hides curing with used salt - Table 8 : Crusting sorting of leather produced from the hides cured with used salt - Table 9 : Physical properties of leather produced from hides cured with used salt - Table 10 : Salt analysis from each stack - Table 11 : Analysis of hide pieces from each stack En ligne : https://drive.google.com/file/d/1hre6bq7-rHXtGq0m5H5AJcVu8tYEE0gU/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37940 [article]

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Determination of bacterial growth rates and their practical significance / Desmond R. Cooper in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 58 (Année 1974)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 58 (Année 1974) . - p. 25-31 Titre : Determination of bacterial growth rates and their practical significance Type de document : texte imprimé Auteurs : Desmond R. Cooper, Auteur ; A. C. Galloway, Auteur ; D. R. Woods, Auteur Année de publication : 1974 Article en page(s) : p. 25-31 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bactéries -- Croissance Biodégradation Collagène -- Détérioration Cuirs et peaux Peaux brutes Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The growth rates of mixed population of hide bacteria and of pure strains of collagenolytic and non-collagenolytic bacteria have been determinated to show the practical significance of high growth rates in delayed curing and in cured hides. Most of the hide bacteria studied have mean generation times of less than 4 h, which means that under exponential growth rate conditions these bacteria double their number in less than 4 h. This fact and the rate of collagen decomposition by the collagenolytic bacteria can have a significant effect in commercial curing. En ligne : https://drive.google.com/file/d/12bcWOckvbIpPkazWB6l31BTIMggpuf9O/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20429 [article]

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Direct recycling of tannery wastewater purified by the silflo air flotation system / David A. Boast in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 70 (Année 1986)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 70 (Année 1986) . - p. 19-21 Titre : Direct recycling of tannery wastewater purified by the silflo air flotation system Type de document : texte imprimé Auteurs : David A. Boast, Auteur ; Desmond R. Cooper, Auteur Année de publication : 1986 Article en page(s) : p. 19-21 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : The patented silflo air flotation process has been operated successfully at several tanneries to purify tannery wastewater (mainl to remove suspended solids but it does not remove dissolved inorganic salts. The next obvious step was to see whether this treated wastewater could be recycled back into all or some of the tanning operations in the interests of water conservation. Trials in the LIRI experimental tannery have shown that the crust leather produced with the silflo liquor from two tanneries - where this was used in all operations from the pre-soak to retanning - was as good as the crust leather made with tap water. This will now require confirmation in large-scale tanning. En ligne : https://drive.google.com/file/d/1cLM4AYuZ03vN3hg_LGlL_QbwJIRVhyi3/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9195 [article]

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Evaporation ponds : a solution for tannery effluent disposal / R. A Rowswell in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 69 (Année 1985)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 69 (Année 1985) . - p. 123-129 Titre : Evaporation ponds : a solution for tannery effluent disposal Type de document : texte imprimé Auteurs : R. A Rowswell, Auteur ; Desmond R. Cooper, Auteur ; S. G. Shuttleworth, Auteur Année de publication : 1985 Article en page(s) : p. 123-129 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : This study takes a look into the factors affecting the efficient operation of the Evaporation Pond system used for the disposal of tannery effluent. Guidelines are given for improving the efficiency of the evaporation pond operation which will minimise grounds for complaints due to the occurence of anaerobic conditions. The climatic conditions for the region are very important factors in making the system economically viable, i.e. the evaporation rate. The results for monitoring, over a period of 16 months, one such system which has been in continuous operation for 15years are evaluated. These results show that the pond system is a cost-effective and low technology method for handling tannery effluent. The disadvantages are the possible production of smell and corrosive hydrogen sulphide, the land area required for the ponds and the fact that the saline wastewater cannot, at present, be recycled back into the tannery. These factors must be balanced against the cost, high technology and close supervision required for more modern methods of wastewater management, which, however, have the potential for water recycling. Note de contenu : - The principles of Evaporation Pond Operation. - Factors affecting the efficient operation of the Evaporation Pond System. - The evaluation of one suche Evaporation Pond System in operation. En ligne : https://drive.google.com/file/d/1Z-fbmR9hGftw5lhy2ZsibSj3ek2TgzWq/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9408 [article]

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Fungicide evaluation for the protection of wet blue hides / Alan E. Russell in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 69 (Année 1985)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 69 (Année 1985) . - p. 135-143 Titre : Fungicide evaluation for the protection of wet blue hides Type de document : texte imprimé Auteurs : Alan E. Russell, Auteur ; S. Pinchuck, Auteur ; Desmond R. Cooper, Auteur Année de publication : 1985 Article en page(s) : p. 135-143 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Details are given of various laboratory methods for assessing fungicides for the protection of wet blue hides and evaluating storage margins in production wet blue leathers. Using these methods, a survey of nine commercial fungicide formulations applied to wet blue cuttings has been carried out. Products examined included a number previously found to fall into the low, medium and higher dosage levels (concentrations extending from 0.01 to 0.5 % m/v in 100 % float) to ensure four-month, residual protection. Experimental factors varied including fungicide addition point (pickle or rinse addition) and post-treatment wet blue handling (draining, rinsing, sammying and splitting). The treatment variations examined were aimed at gaining insight into uptake and penetration of the fungicide was found to give markedly improved prediction of field performance. Pickle additionof fungicide was found to give markedly improved storage protection in a number of cases. Post-treatment handling tended to reduce storage protection in effective products only at higher application levels in pickle addition. Decreases due to rinsing and sammying were comparable but tended to be greater after splitting, depending on the degree of fungicide penetration. Post-treatment effects were less marked in rinse application. The results indicate that more detailed assessment of fungicide effectiveness under various conditions in laboratory surveys can provide a better basis for prediction of field performance. Note de contenu : - METHOD : 1. Preparation of the fungal suspension used to inoculate wet blue cuttings - 2. Fungicide treatment method - 3. Testing of treated wet blue leathers - 4. Minimum inhibiting concentration of nutrient agar (MIC). - EXPERIMENTAL : 1. Factors varied - 2. Preparation of wet blue leathers - 3. Fungal growth assessment. - RESULTS AND DISCUSSION : 1. Order of fungicide effectiveness - 2. Concentration effectiveness - 3. Fungicide addition point - 4. Effect of post-treatment wet blue handling. En ligne : https://drive.google.com/file/d/1VbuynA9MCiqx05UYIB6B-24YmxBh3l4_/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9410 [article]

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Fungicides for treating wet blue hides / A. C. Galloway in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 58 (Année 1974)  

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A new look at curing / Desmond R. Cooper in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 57 (Année 1973)  

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Physical 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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La préservation à court terme des peaux / Desmond R. Cooper in REVUE TECHNIQUE DES INDUSTRIES DU CUIR, Vol. LXVI (Année 1974)  

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Review of accumulated experience of the liritan process / S. G. Shuttleworth in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXI (Année 1986)  

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Short-term preservation of hides and skins. Storage for three weeks / Desmond R. Cooper in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 58 (Année 1974)  

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Storage qualities of wet-blue leathers / Alan E. Russell in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 59 (Année 1975)  

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Studies on the source of contamination of hides by collagenolytic bacteria / D. E. Rawlings in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 58 (Année 1974)  

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A study of the ageing characteristics of mimosa-Al leather / David A. Boast in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 70 (Année 1986)  

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The effect of sodium chloride on anaerobic digestion / C. A. Jackson-Moss in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXIV (Année 1989)  

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The relationship between conductivity and dissolved solids in tannery wastewater / R. A Rowswell in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. N° 71 (Année 1987)  

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The use of ambient temperatures in the liritan sole leather system / David A. Boast in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXII (Année 1987)  

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Theoretical and practical aspects of polar interactions between hide collagen and aqueous media in curing and tanning / Alan E. Russell in JOURNAL OF THE SOCIETY OF LEATHER TRADES' CHEMISTS, Vol. 54, N° 12 (12/1970)

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Theoretical and practical aspects of polar interactions between hide colllagen and aqueous media in curing and tanning / Alan E. Russell in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 54, N° 12 (12/1970)  

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