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Twenty-first Procter memorial lecture Procter's text-book of tanning - 1885 : a retrospective review in the centennial year / R. L. Sykes 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. 1-10 Titre : Twenty-first Procter memorial lecture Procter's text-book of tanning - 1885 : a retrospective review in the centennial year Type de document : texte imprimé Auteurs : R. L. Sykes, Auteur Année de publication : 1986 Article en page(s) : p. 1-10 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Henri Richardson Procter, FRS, came from a tanning family and was self-educated in the best traditions of the Victorian age, so much so that colleagues at the Yorkshire College, forerunner of the University of Leeds, considered that he could have held a chair in any of half-a-adozen departments : the Royal Society elected him a Fellow and the leather-sellers' Company made him a Honorary Liveryman. Having had the privilege of studying in the Leather Department at Leeds University with teachers such as McCandlish and Atkin, who had themselves worked with Procter, it is a great honour to be giving this, the twenty-first Procter Memorial Lecture and repay some of the debt which I owe to them and to the Society, particularly as the tradition of Procter Memorial Lectures is to invite an eminent scientist from outside the industry. The leather industry was fortunate in having such a person to establish formal higher education in leather studies in the UK, for not only did he make a successful transition from industry to academic life, but he was also instrumental in establishing the International Association of Leather Trades' Chemists. This progenitor of the IULTCS was formed during an inaugural meeting held in London (28-30 september 1897) with corresponding secretaries in Austria, France, Germany, Scandinavian countries and the USA. Procter and Dr J. Gordon Parket of Herold's Institute (subsquently the National Leather-sellers' College) were the joint secretaries. It is interesting that the inaugural meeting, at which discussion cenred around the need for consistent analytical methods for vegetable tanning materials, included representatives from leather research stations in Berlin, Copenhagen, Freiberg (Saxony, DDR) and Vienna : three of which are still functioning today, the Copenhagen centre celebrating its centenary this year. It took British tanners another 35 years before they established a research centre. The theme I wish to pursue in this Memorial Lecture is a retrospective review of Procter's Text-Book of Tanning, published 100 years ago in 1885, with a look to the future. Procter's book did not confine itself to the science and technologies of leather manufacture, but incluede chapters on engineering matters as well as commerce, economics and statistics. This latter point will serve as useful base for this discourse. En ligne : https://drive.google.com/file/d/1uIwFlEbOXngvF_z8NP5TsrMWy5CjjA_f/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9189 [article]

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Environmental aspects of tanning with chromium / J. Gauglhofer 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. 11-13 Titre : Environmental aspects of tanning with chromium Type de document : texte imprimé Auteurs : J. Gauglhofer, Auteur Année de publication : 1986 Article en page(s) : p. 11-13 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Methods of preventing the discharge of chromium from tanneries to the environment and their effectiveness and practicability are discussed, viz. Complete uptake and fixation at tanning, direct recycling of spent chrome liquors and precipitation of spent chrome liquors, including reconstitution of new chrome tanning material. However, the chromium cannot be prevented completely from dissipating into the environment. The naturally occuring chromium in soils and the uptake of chromium by plants is discussed. Effects of chromium of chromium on wastewater treatment plants, soils, plants and animals including man are considered, distinguishing between hexavalent and trivalent chromium. En ligne : https://drive.google.com/file/d/1inzx4klbn7OD2UlcLUxokQK2-oOiYqBv/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9192 [article]

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Studies on enzymatic dehairing : Part III. Enzymatic depilation of pigskins modified by alkalisation / Barbara Felicjaniak 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. 14-17 Titre : Studies on enzymatic dehairing : Part III. Enzymatic depilation of pigskins modified by alkalisation Type de document : texte imprimé Auteurs : Barbara Felicjaniak, Auteur Année de publication : 1986 Article en page(s) : p. 14-17 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The pancreatic enzymes and the bacterial enzymatic preparation, proteopol BP, are characterized by their vigorous activity against the grain of pigskins in the depilation process. The tests described in parts I and II of this work showed that there is possibility of limiting grain destruction through alkaline preparation of the skin substrate. The effectiveness of the method developed required industrial checking which, with complementary testings of the enzymatic process, is the subject of the present part of the work. En ligne : https://drive.google.com/file/d/1Aa8IoxOOmg9iHQTq7A9S-v1P2TWldcYQ/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9193 [article]

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Studies on enzymatic dehairing : Part IV. Methods of preparing calfskins for enzymatic depilation / Barbara Felicjaniak 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. 17-18 Titre : Studies on enzymatic dehairing : Part IV. Methods of preparing calfskins for enzymatic depilation Type de document : texte imprimé Auteurs : Barbara Felicjaniak, Auteur Année de publication : 1986 Article en page(s) : p. 17-18 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Quantitative differences in the composition and structure of animal skin are significant. Even collagen, considered to be its most consistent component, shows characteristic chemical differences. Therefore, it is necessary to check the usefulness of the tanning methods for one type of skin before using them for others. The purpose of the work discussed below was to check whether the method for enzymatic dehairing, elaborated and successfully used for pigskins on a commercial scale, may be used also for other kinds of skins. Calfskins were chosen as a subject to compare. Calfskins from animals about one month old were sujbected to testing. The tests had a practical aspect in respect of environmental protection and the reclamation of hair which is valuable for felt production. En ligne : https://drive.google.com/file/d/1WUi-QHgL37qim9fF0lBbk48IJ8oHil5u/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9194 [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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The effect of antiseptics and fungicides used in the leather industry on domestic sewage purified by activated sludge treatment / W. M. Fowler 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. 22-23 Titre : The effect of antiseptics and fungicides used in the leather industry on domestic sewage purified by activated sludge treatment Type de document : texte imprimé Auteurs : W. M. Fowler, Auteur ; S. G. Shuttleworth, Auteur Année de publication : 1986 Article en page(s) : p. 22-23 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antifongiques Antiseptiques Boues d'épuration Cuirs et peaux Eaux usées Index. décimale : 675 Technologie du cuir et de la fourrure En ligne : https://drive.google.com/file/d/1EdbdGKBaUk8jWH2XSEKqkpDUmFGB43kU/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9196 [article]

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The use of aluminium (III) to improve chrome tannage / Anthony D. Covington 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. 33-38 Titre : The use of aluminium (III) to improve chrome tannage Type de document : texte imprimé Auteurs : Anthony D. Covington, Auteur Année de publication : 1986 Article en page(s) : p. 33-38 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The efficiency and effectiveness of chromium (III) tannage can be enhanced in a modification of the typical process by applying the normal or reduced chrome offer to collagenn pre-treated at pH 4 with a small offer of basic masked aluminium (III) sulphate. The mechanism is rationalised by a thermodynamic model in which aluminium (III) has a catalytic function. En ligne : https://drive.google.com/file/d/19Jp0v1GX0F2sc11Zyh44KH7S4VCyDVS8/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9197 [article]

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The modification of protein by transamidification and some physico-chemical and mechanical properties of the product / Asit Baran Mandal 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. 39-45 Titre : The modification of protein by transamidification and some physico-chemical and mechanical properties of the product Type de document : texte imprimé Auteurs : Asit Baran Mandal, Auteur ; Francis Chandrasekaran, Auteur Année de publication : 1986 Article en page(s) : p. 39-45 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : A transamidification reaction was utilised to get low molecular weight peptides from waste skin trimmings and the transamidified peptides were subsequently treated with adipic acid and neutralised with aqueous ammonia which resulted in alkylamide polypeptides. The results of IR spectroscopyindicated that N-alkylamide polypeptides were actually formed. The thermogravimetric analysis has been done and it has been found that the transamidified protein is more stable than casein. The mechanical properties of the film formed using the transamidified polypeptides indicated that it possesses superior properties to those of casein film. The physical properties of leathers finished with transamidified polypeptides are comparable with those finished with casein and both are satisfactory. However, the wet rub fastness of leathers finished with transamidified polypeptide is slightly inferior to that of casein finished leathers. En ligne : https://drive.google.com/file/d/194rQ9EeYsXBmWalRk4bngYanj0ZVJIqE/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9198 [article]

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Modern technology of soft leather production / E. Kukowitsch 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. 46-49 Titre : Modern technology of soft leather production Type de document : texte imprimé Auteurs : E. Kukowitsch, Auteur Année de publication : 1986 Article en page(s) : p. 46-49 Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Note de contenu : 1. Market situation. 2. Beam-house work and 3. fatliquoring : Upper leather - Chrome-tanned leather - Furniture leather - Clothing nappa leather - Split suede - Pigskin clothing leather. En ligne : https://drive.google.com/file/d/1sN_8uDN5fohIJfOhAmEJZ-VtCJI2i1jg/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9199 [article]

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Practical considerations on the sirolime process / R. W. Cranston 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. 50-55 Titre : Practical considerations on the sirolime process Type de document : texte imprimé Auteurs : R. W. Cranston, Auteur ; M. H. Davis, Auteur ; J. G. Scroggie, Auteur Année de publication : 1986 Article en page(s) : p. 50-55 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The sulphide-lime system for removing hair from hides still represents the most easily controllable and cost-efficient method available to a tanner despite the enormous amount of research which has been done in attempting to develop an alternative. Its major drawback today, however, is its severe environmental effect and it is this problem which has prompted the search for a non-polluting method. A number of years ago, we adopted the approach that it would be more advantageous to develope a rapid hair-saving process which utilised, essentially, existing tannery equipment rather than an alternative hair destroying system. Ititially, we worked extensively with enzymes but were unable to find any with sufficient specificity to avoid collagen damage. That is not to say, however, that we have excluded the possibility of using enzymes, as developments in biotechnology may still be able to provide an enzyme of sufficient specificity. The enzyme work enabled us to establish some important principles. Any hair-saving process would need to be a two-stage process. In the first stage, almost all of the hair (at least 90 %) is removed by a rapid chemical treatment. The small amount of redestroying stage, the conditions of which can be chosen to give the normal "liming action" on the hide. Finally there should be an efficient method for separating loosened hair from the hides. Experiments with sulphide had been running concurrently with our enzyme work and eventually an approach using sulphide was developed which has become known as the SIROLIME process. En ligne : https://drive.google.com/file/d/1e_O7PlEdffG3lSNq0zhuWcp9q6h9xH5X/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9207 [article]

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Annual reports on specific topics 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. 61-64 Titre : Annual reports on specific topics Type de document : texte imprimé Année de publication : 1986 Article en page(s) : p. 61-64 Langues : Anglais (eng) Catégories : Atmosphère -- Pollution Boues résiduaires Chimie analytique Confitage Le confitage est une action biochimique effectuée au moyen de produits enzymatiques, qui a pour but de dégrader les fibres élastiques, contribuant ainsi à augmenter la souplesse du cuir. En outre, les enzymes complètent la dégradation des résidus épidermiques, donnant ainsi une fleur plus propre et plus lisse. Cuirs et peaux -- Déchets Eaux usées -- Recyclage Liqueurs de tannage Travail de rivière (cuir) Index. décimale : 675 Technologie du cuir et de la fourrure Note de contenu : 1. WASTE WATERS : Beamhouse operations (from soaking to bating) - Pickling and tanning - Waste water treatment - Criteria for discharges - Analytical methods - Recycling of process liquors 2. SOLID WASTES : Untanned wastes - Tanned wastes - Sludges 3. AIR POLLUTION 4. CHARGES 5. CO-OPERATION WITH THE INTERNATIONAL COUNCIL OF TANNERS En ligne : https://drive.google.com/file/d/1cINisJU1bP8NoRqAarWtWSUf3nllxBLi/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9208 [article]

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Waste processing in the tannery : production of gelatin, reconstituted collagen and glue from chrome-tanned leather splits and trimmings subjected to a modified detanning process / M. Baucells 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. 69-76 Titre : Waste processing in the tannery : production of gelatin, reconstituted collagen and glue from chrome-tanned leather splits and trimmings subjected to a modified detanning process Type de document : texte imprimé Auteurs : M. Baucells, Auteur ; C. Aramon, Auteur ; M. Roura, Auteur Année de publication : 1986 Article en page(s) : p. 69-76 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Note de contenu : 1. INTRODUCTION : By-products of the leather industry / General aspects of research on by-products recovery. 2. EXPERIMENTAL : Process of maximumchrome removal / Determination of residual chromium content by means of inductively coupled plasma atomic emission spectrometry (ICP) : Apparatus and working conditions - Reagents - Sample preparation - Procedure and results / Operative conditions of detanning (dechroming) of this type of by-product. 3. INDUSTRIAL APPLICATIONS OF PROCESSED BY-PRODUCTS : Treatment after dechroming : maceration and extraction / Production of blud and/or gelatin / Reconstitued collagen. Conservation of physico-chemical character and of conformation in the collagen molecule / Production of protein flour / Economic considerations on quality of gelatin, re-constitued collagen, glue and protein flour, obtained by this method. Study to be carried out in future. En ligne : https://drive.google.com/file/d/1mzh0ITY1I9Kc-hwQZ_wXHJQm76U5ZArr/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9209 [article]

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The water authority's service to industry / D. A. Bailey 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. 77-82 Titre : The water authority's service to industry Type de document : texte imprimé Auteurs : D. A. Bailey, Auteur Année de publication : 1986 Article en page(s) : p. 77-82 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The Water Authority's service to industry can be summed up fairly briefly ; it provides a supply of water for manufacturing processes and also for personal use by the workforce and subsequently arranges for its collection and suitable disposal after use together with a controlled level of added contamination. That is a simplified picture but, clearly, the reality is rather more complicated and one can anticipate a few questions. On the supply side, which can be from the mains or a river or both, what is the quality ? What is the cost ? What is the reliability ? Also, on the disposal side, what are the conditions and what is the cost ? These are some of the matters on which I will try to provide information. In order to make the main services available the authority must also attend to other responsibilities which constitute an important part of the overall service. These include the protection of surface and underground resources, i.e. reservoirs, rivers and streams, estuaries and tidal waters. It must also control some of these resources, to some extent, to avoid flooding and to supplement river flow during dry spells. In undertaking its multiple roles the water authority must operate within a tangle of legislation and other constraints as illustrated in Fig. 1. A paper which I presented to the Northampton Group in 1976 dealt with the disposal of tannery wastes in relation to a Wather Authority's requirements. That paper explained why various conditions needed to be imposed and also provided some suggestions on how to meet those requirements. A second paper to the SCI explained the much wider role of the Water Authority. Much of what I said then remains relevant today but, since the publications are readily available for anyone still wishing to obtain the wider view, it would be wasteful now to go over the same ground. During the ensuing nine years there have been quite a few changes, for example, more legislation, bulk transfers of water and alterations in the methods of charging customers. The objects of the present paper is to consider these changes in relation to their impact upon industry. En ligne : https://drive.google.com/file/d/1g9qXxpIfhG_mrytVy4m7XR3z4JwA6rbH/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9210 [article]

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Short-term preservation of hides in Zimbabwe / J. C. Barrett 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. 83-89 Titre : Short-term preservation of hides in Zimbabwe Type de document : texte imprimé Auteurs : J. C. Barrett, Auteur Année de publication : 1986 Article en page(s) : p. 83-89 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The Cold Storage Commission produces some 450 000 hides per year wich at present are preserved by salting. This is causing effluent problems at abbatoirs and tanneries and there is great interest in alternative preservation systems, particularly for those hides destined for the local tanning industry where short-term preservation would be adequate. This paper reviews the scope for salt-free preservation of hides in Zimbabwe by improved drying methods, chemical reduction of water activity, radiation sterilisation, chilling, freezing and treatment with bactericides. The overall conclusion is that prospects appear good for developing a short-term hide preservation system appropriate to the needs of the Cold Storage Commissionin Zimbabwe. The most promising systems are based on chilling or treatment with bactericides such as benzalkonium chloride, boric acid Vantocil IB (ICI plc), Busan 30 and Busan 52 (Buckman Laboratories). Each system has different implications for capital costs, operating costs and flexibility in production, storage and marketing. Laboratory studies and field trials comparing selected treatments will be described in subsequent papers. En ligne : https://drive.google.com/file/d/11Z349xH_S5Mf5CzvlcsXJIo4ea1TErEr/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9211 [article]

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The history of chrome tanning materials / Wolfhard Luck 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. 99-103 Titre : The history of chrome tanning materials Type de document : texte imprimé Auteurs : Wolfhard Luck, Auteur Année de publication : 1986 Article en page(s) : p. 99-103 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : The article describes the history of ready-for-tanning chroma tanning materials from the time they were first developed to the present day. The first such product was a liquid chrom tanning material which appeared on the American market. This was followed by drum-dried chrome tanning powders, readily soluble spray-dried chrome tanning materials and, later, by self-basifying chrome tanning materials. Recently, special chrome tanning materials from chrome tanning processes with high float exhaustion have been developed. Industrial progress, new production processes for leather and the development of chrome tanning materials have all interacted with each other. En ligne : https://drive.google.com/file/d/1q3kQwf56M27kStYlsTKhkMrKbvt2hPXF/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9212 [article]

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On the nature of the relationship between the water and oil contents of chrome tanned leather / R. N. Reddie 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. 104-105 Titre : On the nature of the relationship between the water and oil contents of chrome tanned leather Type de document : texte imprimé Auteurs : R. N. Reddie, Auteur Année de publication : 1986 Article en page(s) : p. 104-105 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : The relationship between the water and oil contents for chrome tanned leather has been investigated over the range of oil contents fromzero to more than 40 %. It was established that there is a linear relationship between the factors, with moisture content decreasing from 19.8 to 11.3 % as the oil content increases to 41.3 %, forleather conditioned at 20°C and 65 % r.h. En ligne : https://drive.google.com/file/d/1C4y2s58BMDPmIRnzMku90Esu2oLbxZMv/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9213 [article]

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Simultaneous tanning and fatliquoring of skins / Anita Przepiórkowska 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. 106-110 Titre : Simultaneous tanning and fatliquoring of skins Type de document : texte imprimé Auteurs : Anita Przepiórkowska, Auteur Année de publication : 1986 Article en page(s) : p. 106-110 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : The results of studies presented refer to calfskin compact tanning with the aim of producing leather fast to washing in organic solvents. The attempt was made to prepare and apply bifunctional preparations synthetised from chromium nitrate and a liquid fraction of molten pig fat waste. The composition of the preparation was studied using thin-layer chromatography technique and spectrophotometric methods. The technological usability assessment was made on the grounds of test tanning. The leather tanned with the tanning/fatliquoring preparation was fast to washing and contained 6.5 % of chemically bonded fat. The bifunctional preparation obtained can also be utilised as a finishing agent for skins in a wet blue state. En ligne : https://drive.google.com/file/d/1YQS-0qHaosKNso6uSo7G5EqqaqGSNBEQ/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9214 [article]

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Report of the XVIII meeting held in Paris on 8 september 1985 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. 116-123 Titre : Report of the XVIII meeting held in Paris on 8 september 1985 Type de document : texte imprimé Année de publication : 1986 Article en page(s) : p. 116-123 Note générale : IULTCS Physical Testing Commission Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Note de contenu : 1. MEASUREMENT OF ABRASION RESISTANCE OF UPHOLSTERY LEATHER : Alternative test to be Bally Flexometer. 2. MEASUREMENT OF LEATHER SURFACE. 3. TOLERANCES APPLIED TO VARIOUS TESTS : Tolerances applied to the tear test (IUP/8) / Tolerances applied to the lastometer test (IUP/9) / Tolerances applied to the tensile strength test (IUP/6). 4. HEAT RESISTANCE OF INDUSTRIAL GLOVING. 5. FACTORY LABORATORY : Upper leather - Other methods of more limited usefulness - Upholstery leather - Garment leather. 6. DYNAMIC WATERPROOFNESS TEST FOR BOOT AND SHOE UPPER LEATHER : REVISION OF METHOD IUP/10. 7. SUGGESTIONS FOR NEW AGENDA ITEMS. 8. FLAMMABILITY TESTING. 9. STANDARDISATION OVER THE WORLD : Cold crack test (IUP/29) / Relations with committee ISO-TC/120. Addendum : IUP/16. Measurement of shrinkage temperature. En ligne : https://drive.google.com/file/d/1ppNwY-Y9XHjvQao2gdEOzbzVF8ythuqR/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9215 [article]

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Draft method IUP/10 (modified version) : Water resistance test for flexible leathers 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. 123-125 Titre : Draft method IUP/10 (modified version) : Water resistance test for flexible leathers Type de document : texte imprimé Année de publication : 1986 Article en page(s) : p. 123-125 Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Scope : This method is intended for use with any shoe upper leather and other flexible leathers. Principle of the method : The leather specimen is flexed on a machine in a manner simulating conditions of wear. En ligne : https://drive.google.com/file/d/12dZYLvtaxObmAB1nJ0av9z6pkIsdoT1J/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9216 [article]

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Some observations on industrial leathers / T. Waite 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. 129-134 Titre : Some observations on industrial leathers Type de document : texte imprimé Auteurs : T. Waite, Auteur ; P. Elliott, Auteur Année de publication : 1986 Article en page(s) : p. 129-134 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The background and activities of the once thriving industrial leather production of the United Kingdom is described, with reference to the history of a typical small company engaged in this field. Some reasons are proposed for the over-decline of the industry, together with a plea for increased recognition of the capabilities of the remaining producers and their relevance to the leather industry as a whole. En ligne : https://drive.google.com/file/d/1M6tUDRdWdB8UBo49nkebSpHTSztUixk0/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9229 [article]

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Process selection for the improvement of low quality stock / C. Sibborn 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. 135-137 Titre : Process selection for the improvement of low quality stock Type de document : texte imprimé Auteurs : C. Sibborn, Auteur Année de publication : 1986 Article en page(s) : p. 135-137 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : The ever-increasing cost of European domestic material, coupled with effluent and environmental problems in processing from the raw, has lead to an increasing tendency to process from wet blue or pickled imported stock of a generally recognised lower quality. At the same time, tanners from areas of the world associated with indigenous, low quality raw material are exporting their leather into the very lucrative and competitive European and North American markets. Both trends have led to an increase in technical considerations of process selection for the improvement of low quality stock. The origin of this stock literally circumvents the globe from South America through Africa to India and the Far East. It is the purpose of this paper to suggest purely practical considerations, in leather production, of process control of lower quality to upbrade this material artificially. En ligne : https://drive.google.com/file/d/10Zo6WrhC2c8Jpa00bvPkaUuuqgOm4-eG/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9230 [article]

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The recovery and re-use of chromium obtained from shavings and buffing dust / S. Nkambule 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. 142 Titre : The recovery and re-use of chromium obtained from shavings and buffing dust Type de document : texte imprimé Auteurs : S. Nkambule, Auteur Année de publication : 1986 Article en page(s) : p. 142 Langues : Anglais (eng) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Note de contenu : - Procedure for tannage - Variations of tanning methods - Basification - Test used - Results - Conclusions. En ligne : https://drive.google.com/file/d/1Tvg9WgiYYJwPDD1RR406twyP7Dy0WF0z/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9231 [article]

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Newer syntans / J. C. Bickley 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. 143-144 Titre : Newer syntans Type de document : texte imprimé Auteurs : J. C. Bickley, Auteur Année de publication : 1986 Article en page(s) : p. 143-144 Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Note de contenu : Syntans as dispersing agents - Neutralising agents and Syntan acidification - Dyeing of Syntan treated leather - Light fastness - Protein-containing Syntans - Acrylic type Syntans - Polyurethanes - Combination with aluminium. En ligne : https://drive.google.com/file/d/1yhBjzPzEVxuzXdkH-Pdx5FDdRbD_sWMb/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9232 [article]

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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)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 70 (Année 1986) . - p. 151-154 Titre : A study of the ageing characteristics of mimosa-Al leather Type de document : texte imprimé Auteurs : David A. Boast, Auteur ; Desmond R. Cooper, Auteur ; S. G. Shuttleworth, Auteur Année de publication : 1986 Article en page(s) : p. 151-154 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : During the past decade a great deal of reserach work has been aimed at developing an alternative process to chrome tannage. The reasons for this search are welle known and will not be dwelt upon, but it has always been considered that such an alternative tannage must produce leather having similar properties to chrome tanned leather, particularly as regards hydrothermal stability. Several avenues have been followed by researchers, but the most promising approach seems to be that of a combination tannage involving vegetable tannins and aluminium salts. The value of this type of combination tannage has been known for many years and has been employed to produce leather with hydrothermal stability, perspiration resistant leather and more durable bookbinding leather. However, this earlier work was performed without paying much attention to the theoretical side of the process and it was not until Slabbert of the South African Leather Industries Research Institute (LIRI) presented a paper to the Congress of the IULTCS held in Versailles in 1979 that there was an attempt to rationalise the theory of a vegetable/aluminium tannage. Since publication of that initial report, other papers have added to the fund of knowledge pertaining to the mechanism. As things stand at present, by using the theory coupled with practical tanning processes in which the latest technology is employed, it can be said that a vegetable aluminium tannage which is typified by the Mimosa-Al tannage is established as a viable process. It can be employed to produce a wide range of leathers from firm shoeupper to soft garment in a rational and cost-effective manner. To process has the added attraction that crust stocks may be prepared at a number of stages to allow shipment and sorting, for example, to be carried out without the problem of rehydration which is associated with chrome tanned leather. It is the object of this paper to report on a characteristic of Mimosa-Al leather which, because of the known properties of vegetable/aluminium tanned leather, was not anticipated to raise problems but which, nevertheless, has been investigated for the sake of throughness and to dispel any doubts on this score. It is well known that, unless certain precautions are taken, chrome tanned leather which is subsequently heavily retanned with vegetable tannins is prone to become weaker in strength after storage under hot/humid conditions and it has been suggested that the same is true of Mimosa-Al leather. LIRI has performed many trials with the Mimosa-Al process over the past years and it has been possible to make a study of the ageing characteristics of leathers produced by this tannage as compared to other combination tannages. En ligne : https://drive.google.com/file/d/1G0EQ2I6eQFXxYotuZajInSb3crKjv6eH/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9234 [article]

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A comparison of the dyeing characteristics of leather tanned with combinations of mimosa, aluminium and glutaraldehyde / C. Barthelet 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. 155-162 Titre : A comparison of the dyeing characteristics of leather tanned with combinations of mimosa, aluminium and glutaraldehyde Type de document : texte imprimé Auteurs : C. Barthelet, Auteur ; N. J. Cutting, Auteur Année de publication : 1986 Article en page(s) : p. 155-162 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Note de contenu : PLANT OF EXPERIMENTS. RESULTS OF PRELIMINARY TRIALS : Ionic charge of crust leather - Fastness to light of crust leather - Dyebath exhaustion - Exhaustion from a neutral bath - Dye penetration - Brightness of dyeings - Apparent yield of surface colour. CONCLUSIONS DRAWN AFTER PRELIMINARY WORK. SECOND STAGE TRIALS. RESULTS OF SECOND STAGE TRIALS : Quality of dyeing - Fastness tests. En ligne : https://drive.google.com/file/d/1nFiNakQwkd11q668D6OOF6gLOJeNn_mg/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9235 [article]

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The utilisation of a lactobacillus culture in the beamhouse / L. Schlösser 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. 163-168 Titre : The utilisation of a lactobacillus culture in the beamhouse Type de document : texte imprimé Auteurs : L. Schlösser, Auteur ; W. Keller, Auteur ; E. Heidemann, Auteur Année de publication : 1986 Article en page(s) : p. 163-168 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : A novel method of depilation in an acid medium by the use of a certain lactobacillus culture is reported. The procedure and the attack on hide substance, especially the proteoglycans, are described. Under special conditions, a soft or super-soft leather can be obtained. Note de contenu : Some important observations - Test procedure - Attack on hide substance - Decompositions of proteoglycans. En ligne : https://drive.google.com/file/d/1_vfHdjKsUeXBrV9pcxXh1bzq8KXz4sIL/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9236 [article]

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Leather : State of the art in the United States / J. A. Ollech 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. 172-175 Titre : Leather : State of the art in the United States Type de document : texte imprimé Auteurs : J. A. Ollech, Auteur Année de publication : 1986 Article en page(s) : p. 172-175 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : This paper will discuss trends and changes in the United States leather industry starting with the slaughterhouse and following through to the end of the chrome cycle. Thses will include the future of salt curing in the USA, new trends in chrome tan methods, environmental and effluent considerations and the economics of a tannery in the 1980s. Note de contenu : The slaughterhouse to the tannery - The beamhouse - Fungicides and their testing - Effluent control and environmental concerns - Economics trends in the US tanning industry - Addendum : Process for salt-free chemical curing. En ligne : https://drive.google.com/file/d/1EAf9p22jlUvpdhEcTmyQcklXNLUzkz3w/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9237 [article]

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Deying faults / D. A. Mills 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. 144-147 Titre : Deying faults Type de document : texte imprimé Auteurs : D. A. Mills, Auteur Année de publication : 1986 Article en page(s) : p. 144-147 Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Note de contenu : PROCESSING FAULTS. EQUIPMENT : Internal drum damage - Clean drums - Overloaded drums - Dissolving vessel capacity - Dyestuff/powdered products store. PROCESSING : Neutralisation - Washing - Levelling agent - Formic acid - Cationic agents. DYESTUFF FAULTS : At the tannery - From the supply company - Dye matching service - Strength and shade - Solubitlity - Dyestuff changes - Wrong dyestuff - Foreign objects. En ligne : https://drive.google.com/file/d/1q6ksmnnVj7hFihEPgu38DPZq9LJY3VjZ/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9238 [article]

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