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Auteur Balachandran Unni Nair
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Council of Scientific and Industrial Research - Central Leather Research Institute, Chemical Laboratory - Adyar - Chennai - India
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An approach for the treatment of vegetable tan liquor containing hydrolysable tannins / A. Sharli in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVIII, N° 10 (10/2003)
[article]
Titre : An approach for the treatment of vegetable tan liquor containing hydrolysable tannins Type de document : texte imprimé Auteurs : A. Sharli, Auteur ; Balachandran Unni Nair, Auteur ; Jonnalagadda Raghava Rao, Auteur ; Balaraman Madhan, Auteur Année de publication : 2003 Article en page(s) : p. 381-387 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : In recent times leather industry is looking at options for a tanning system especially based on the natural products such as vegetable tanning materials. Nevertheless there is also a clear shortcoming in the usage of vegetable tanning materials because of the high organic load in the effluent generated, which is difficult to degrade and hence leads to high biological or chemical oxygen demand. Hence, in this study, methods to treat the effluent liquor containing myrobalan, a widely used hydrolysable tannin have been explored to reduce the pollution load generated by the same. Two methods have been adopted for the treatment of the myrobalan liquor. The first method involves breaking down of vegetable tannins to simpler compounds by oxidative degradation using hydrogen peroxide. The second method involves the precipitation of vegetable tannins using zinc sulfate as the precipitant. A 28% reduction in the COD has been obtained for the effluent liquor treated with H2O2 in the presence of Zerolite-Iron catalyst at 50°C. Myrobalan liquor precipitated with zinc sulfate at a pH of 10 has resulted in the reduction of COD by 74%. Additional reduction in the COD has been obtained by adapting the precipitation followed by oxidative degradation method in the presence of Zerolite-Iron catalyst, which has resulted in the reduction of COD load by 96%. En ligne : https://drive.google.com/file/d/1Mo8tKhLCzhOEqy3KmF-imU8IneHay7x8/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4152
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Code-barres Cote Support Localisation Section Disponibilité 001592 - Périodique Bibliothèque principale Documentaires Disponible An assessment of differences between butt and belly regions of indian sheep skin / Dagnew Negasa in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CX, N° 6 (06/2015)
[article]
Titre : An assessment of differences between butt and belly regions of indian sheep skin Type de document : texte imprimé Auteurs : Dagnew Negasa, Auteur ; Punitha Velmurugan, Auteur ; Kalarical Janardhanan Sreeram, Auteur ; Jonnalagadda Raghava Rao, Auteur ; Balachandran Unni Nair, Auteur Année de publication : 2015 Article en page(s) : p. 165-176 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Cuirs et peaux -- Analyse
Cuirs et peaux de moutons
Peau -- HistologieIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Skins and hides undergo changes in biochemical and biophysical properties during the leather processing. Biochemical composi-tion varies with respect to different portions of the skin like butt, belly, shank, and neck. Belly part looseness is the main problem in leather making from sheepskin. To address this issue, the present work focuses on analysis of histology and biochemical prop-erties of butt and belly portion of sheepskin from the southern part of India. Globular proteins are relatively higher in the butt portion than the belly, whereas it is reverse in the case of fibrous proteins except collagen. Interestingly, the presence of proteo-glycans content in butt regions is significantly high compared to belly and in case of fat content it is reverse. Acid soluble colla-gen contribution is higher in butt region than belly and vice-versa in the case of pepsin soluble collagen. In general, collagen con-tent is significantly higher in butt than belly, which may be the major cause for the higher strength characteristics of butt regions. Cr2O3 content is higher in butt region than belly, which corroborates with protein content and its interaction with tanning agents. Distribution of pore size influences the breathability property of leather, which has been altered in all the unit operations. Scan-ning electron microscopy study reveals the morphology of the grain and cross-section of the skin changes during leather pro-cessing. Thus, this study aids in better understanding of the butt and belly regions of Indian sheepskin. Note de contenu : - EXPERIMENTAL : Materials - Sample preparation - Non-collagenous proteins analysis - Fat content and chromic oxide content analysis - Thermal stability determination and pore size distribution - Collagen extraction and analysis - Conformational analysis - Scanning electron microscopic analysis - Histological examination
- RESULTS AND DISCUSSION : Non-collagenous protein analysis - Fat content analysis - Thermal stability - Pore size distribution - Chromic oxide content analysis - Determination of collagen content - Scanning electron analysis - Histological examinationEn ligne : https://drive.google.com/file/d/193mZgED0wKCjT-NWI09j55OhjbuB5McX/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24231
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Code-barres Cote Support Localisation Section Disponibilité 17260 - Périodique Bibliothèque principale Documentaires Disponible An eco-benign tanning system using aluminium, tannic acid, and silica combination / N. N. Fathima in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCIX, N° 2 (02/2004)
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Titre : An eco-benign tanning system using aluminium, tannic acid, and silica combination Type de document : texte imprimé Auteurs : N. N. Fathima, Auteur ; Balachandran Unni Nair, Auteur ; Jonnalagadda Raghava Rao, Auteur ; Subramani Saravanabhavan, Auteur Année de publication : 2004 Article en page(s) : p. 73-81 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : One of the best ways to combat chrome pollution is to avoid chromium itself in tanning. With this view, a chrome-free combination tanning system has been established using aluminium, tannic acid, a precursor to vegetable tannins and silica. Since tannic acid has low molecular weight compared to vegetable tannins, it can be successfully used to make a variety of leathers and the problems associated with vegetable tannins like hard biodegradability of tannins, fullness and darkness of leathers can be avoided. The presence of aluminium not only improves the hydrothermal stability of leather but also gives a pleasant pastel color to the leather due to the formation of aluminium-tannic acid complex, which produces colour in the matrix thus leading to the concept of natural dyeing. The fastness properties of the color obtained have been studied and have been found to be significantly good. The presence of silica in the combination system gives rise to softness and fluffiness. The amount of tannic acid, aluminium sulfate and sodium metasilicate has been chosen as 10, 5, and 5% (on pelt weight), respectively. In order to avoid pollution due to pickling operation, pickle-less tanning has been carried out. Both upper and garment leathers have been made and the characteristics of the same have been studied. The shrinkage temperature of the leathers obtained from this combination tanning system is about 95°C. The physical strength characteristics and the organoleptic properties of the leathers obtained are on par with or better than the conventional chrome tanned leathers. The effluent arising from this tanning system has been analyzed for its environmental impact. The exhaustion of aluminium is about 98%. Also, there is significant reduction in the COD and TDS. Thus, an eco-benign chrome-free combination tanning system has been established. En ligne : https://drive.google.com/file/d/1r-90QymqgKFRS1dTnYGfvzvHwoxG55AG/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4182
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Code-barres Cote Support Localisation Section Disponibilité 001597 - Périodique Bibliothèque principale Documentaires Disponible 001598 - Périodique Bibliothèque principale Documentaires Disponible An enzymatic beamhouse process coupled with semi-metal tanning and eco-benign post tanning leads to cleaner leather production / Subramani Saravanabhavan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. C, N° 5 (05/2005)
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Titre : An enzymatic beamhouse process coupled with semi-metal tanning and eco-benign post tanning leads to cleaner leather production Type de document : texte imprimé Auteurs : Subramani Saravanabhavan, Auteur ; Balachandran Unni Nair, Auteur ; Jonnalagadda Raghava Rao, Auteur ; Palanisamy Thanikaivelan, Auteur Année de publication : 2005 Article en page(s) : p. 174-186 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Leather industry in the world is presently undergoing radical transformation due to environmental pollution and discharge statutes. Hence, the industry is stressed to search for cleaner leather processing. Present leatherprocessing methodologies are known to contribute higher pollution loads. This method of tanning process comprises 'do-undo' logic. In addition, the conventional methods followed in leather processing subject the collagen matrix to wide variation in pH (2.8 - 13.0). This is evidenced from the emission of huge amount of pollution loads such as bio-chemical oxygen demand (BOD), chemical oxygen demand (COD), total dissolved solids (TDS), total solids (TS), sulfates, chlorides and chromium. In the study illustrated here, the hair and flesh removal as well as fiber opening have been achieved using bio-products at pH 8.0, pickle free semi-metal tanning employing aluminium, vegetable tannins and silica followed by post-tanning using environmental benign chemicals. Hence, eco-benign chemicals have been used throughout the leather processing. It has been observed that the extent of hair removal and opening up of fiber bundles are comparable to that of conventionally processed leathers. This has been demonstrated through scanning electron microscopy (SEM) and softness measurements. The shrinkage temperature of the experimental leathers obtained from this combination tanning system is about 100°C. Performance of the leathers is shown to be on par with conventionally chrome-tanned leathers through physical strength and hand evaluation. The developed process also exhibits significant reduction in BOD, COD, TDS and TS loads by 46, 33, 91, and 92%, respectively. Further, the developed process appears to be economically viable. En ligne : https://drive.google.com/file/d/1C3W77yjX6Y9IzNX6AsVESIapVLntwBAh/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=4065
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Code-barres Cote Support Localisation Section Disponibilité 002056 - Périodique Bibliothèque principale Documentaires Disponible An integrated eco-friendly tanning method for the manufacture of upper leathers from goatskins / Subramanian Saravanabhavan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 87, N° 4 (07-08/2003)
[article]
Titre : An integrated eco-friendly tanning method for the manufacture of upper leathers from goatskins Type de document : texte imprimé Auteurs : Subramanian Saravanabhavan, Auteur ; Rathinam Aravindhan, Auteur ; Palanisamy Thanikaivelan, Auteur ; B. Chandrasekaran, Auteur ; Jonnalagadda Raghava Rao, Auteur ; Balachandran Unni Nair, Auteur Année de publication : 2003 Article en page(s) : p. 149-158 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Coût-Efficacité
Cuir -- teneur en chrome
Cuirs et peaux de chèvres
Déchets -- Réduction
Eau -- Consommation -- Réduction
Eaux usées -- Analyse
Epilage enzymatique
Tannage au chromeIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Present leather-making processes cause difficulties, with regard to their perceived environmental impact. Pre-tanning and tanning processes contribute more than 90% of the total pollution load from leather processing.
Conventional process methods subject the skin to wide variations in pH. Such pH changes, lead to salt formation which results in a net increase in COD, TDS, chlorides, sulphates and chromium levels in tannery wastewaters.
In this study, a three-step process sequence has been explored to limit the pH range in leather processing to between 4.0-8.0. A sequence of operations, viz. enzyme unhairing, NaOH based fibre opening and pickle-less chrome tanning produces leathers matching the functional performance of conventionally processed leathers but leading to substantial environmental benefits in the reduction of COD and total solids by 43 and 70%, respectively. Water consumption for processing is reduced to 17.81/Kg raw hide. The process sequence explored appears to be economically viable.Note de contenu : - EXPERIMENTAL METHODS :
- Standardisation of dehairing process
- Standardisation of opening up of fibre bundles
- Experimental tanning process (E)
- Conventional tanning process (C, as followed in India)
- EXAMINATION OF THE LEATHERS :
- Input-output analysis
- Scanning electron microscopic examination
- RESULTS AND DISCUSSION :
- Standardisation of dehairing system
- Standardisation of NaOH for opening up of fibre bundles
- INTEGRATED THREE STEP TANNING PROCESS : AN APPRAISAL
- Softness measurements
- Scanning electron microscopic analysis
- Chromium in leather
- OBJECTIVE AND SUBJECTIVE METHODS OF EVALUATION OF THE LEATHER
- Strength characteristics
- Tactile properties
- Environmental benefits
- Techno-economic viability
- INPUT-OUTPUT AUDIT OF THE EXPERIMENTAL AND CONTROL PROCESS
control process
- Table 1 : Composition of depilatory mixture* for different methods of application
- Table 2 : Extent of swelling and cross section pH of the pelts from preliminary fibre opening trials
- Table 3 : Compression measurement and gradient data for control (C) and experimental (E) crust Leathers
- Table 4 : Comparison of chromium content in wet blue leathers from control (C) and experimental (E) processes
- Table 5 : Physical testing data of control (C) and experimental (E) leathers
- Table 6 : Composite liquor analysis
- Table 7 : Comparison of water requirement and discharge for control (C) and experimental (E) leather processing of 1 kg raw skins
- Table 8 : Time and power consumption for the conventional (C) and experimental tanning (E) processes
- Table 9 : Cost estimates of the conventional (C) and experimental tanning (E) processes
- Table 10 : Input-output audit for both control and experimental processEn ligne : https://drive.google.com/file/d/1jxj7vQuxr9IAA_lOPXzd04eZ-44Kkiva/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39771
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 87, N° 4 (07-08/2003) . - p. 149-158[article]An organic approach for wet white garment leathers / Marimuthu Pradeep Kumar in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIV, N° 3 (03/2009)
PermalinkApproach towards zero discharge tanning : exploration of NaOH based opening up method / Palanisamy Thanikaivelan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVI, N° 6 (06/2001)
PermalinkApproaches toward elucidating the mechanism of tanning using an organo-zirconium complex / Kalarical Janardhanan Sreeram in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCV, N° 10 (12/2000)
PermalinkAugmentation of garment sheepskin type properties in goatskins : Role of chromium-silica tanning agent / N. N. Fathima in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 87, N° 6 (11-12/2003)
PermalinkA bio-driven lime and pickle free tanning paves way for freener garment leather production / Rathinam Aravindhan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCIX, N° 2 (02/2004)
PermalinkBioaccumulation route for secured recovery and recoup of chromium from tannery wastewaters / Rathinam Aravindhan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCIX, N° 5 (05/2004)
PermalinkChrome-melamine syntan : a step towards developing fuller leather / P. Balasubramanian in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CX, N° 10 (10/2015)
PermalinkChromium(III) pigments : Use of leather wastes as alternative starting material / Kalarical Janardhanan Sreeram in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVI, N° 7 (07/2011)
PermalinkChromium (VI) formation : thermal studies on chrome salt and chrome tanned hide powder / N. N. Fathima in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVI, N° 11 (11/2001)
PermalinkCombination tanning based on tara : an attempt to make chrome-free garment leathers / Balaraman Madhan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CII, N° 6 (06/2007)
PermalinkConsequence of UV irradiation on the zirconium tanned collagen : a molecular level study / N. N. Fathima in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIII, N° 12 (12/2008)
PermalinkCost effective fixing process for post tanning operation / N. N. Fathima in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CV, N° 3 (03/2010)
PermalinkDevelopment of formaldehyde-free leathers in perspective of retanning : Part 1. Benchmarking for the evolution of a single syntan system / Palanisamy Thanikaivelan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CII, N° 10 (10/2007)
PermalinkDevelopment of a leather processing method in narrow pH profile : Part 1. Standardisation of dehairing process / Palanisamy Thanikaivelan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 84, N° 6 (11-12/2000)
PermalinkDevelopment of leather processing method in narrow pH profile : Part 2. Standardisation of tanning process / P. Thanikaivlaen in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 85, N° 3 (05-06/2001)
PermalinkDevelopment of natural colors in Cr-Fe tanned upper leathers / Jonnalagadda Raghava Rao in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVII, N° 7 (07/2002)
PermalinkDevelopment of natural colours in Cr-Fe tanned garment leathers / J. R. Rao in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 86, N° 3 (05-06/2002)
PermalinkDevelopment of natural garment leathers : a metal-free approach / Kalarical Janardhanan Sreeram in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CV, N° 12 (12/2010)
PermalinkDirect chrome liquor recycling under indian conditions : Part 1. Role of chromium species on the quality of the leather / Kalarical Janardhanan Sreeram in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. C, N° 6 (06/2005)
PermalinkDoped oxides of cerium as inorganic colorants / Cheruvathoor Poulose Aby in COLORATION TECHNOLOGY, Vol. 123, N° 6 (2007)
PermalinkGreen chemistry approach in leather processing : a case of chrome tanning / Marimuthu Pradeep Kumar in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVI, N° 4 (04/2011)
PermalinkGreen solution for salinity in tannery wastewater : a step forward in leather processing / Subramanian Saravanabhavan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIX, N° 7 (07/2014)
PermalinkHigh exhaust chrome-aluminium combination tanning : Part 1. Optimization of tanning / Kalarical Janardhanan Sreeram in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CI, N° 3 (03/2006)
PermalinkHydration in matrix stabilization of collagen fibres : relevance to mechanistic insight into tanning / Balaraman Madhan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVIII, N° 7 (07/2003)
PermalinkIntegration of chrome tanning and wet finishing process for making garment leathers / Palanisamy Thanikaivelan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. C, N° 6 (06/2005)
PermalinkInteraction of aluminum and hydrolysable tannin polyphenols : An approach to understanging the mechanism of aluminum vegetable combination tannage / Balaraman Madhan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CI, N° 9 (09/2006)
PermalinkIsolation and characterization of a low affinity chromium(III) complex in chrome tanning solutions / Jonnalagadda Raghava Rao in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 81, N° 6 (11-12/1997)
PermalinkMetal organic based syntan for multi-stage leather processing / Gladstone Christopher Jayakumar in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CX, N° 9 (09/2015)
PermalinkMixed metal complexes of zirconium : A step towards reducing usage of chromium in tanning / Kalarical Janardhanan Sreeram in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCIX, N° 3 (03/2004)
PermalinkMixed metal tanning using chrome-zinc-silica : A new chrome-saver approach / N. N. Fathima in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVIII, N° 4 (04/2003)
PermalinkA modified leather processing method for water and pollution reduction in tannery / Subramani Saravanabhavan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIII, N° 1 (01/2008)
PermalinkA molecular level investigation of dialdehyde starch interaction with collagen for eco-friendly stabilization / Gladstone Christopher Jayakumar in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CX, N° 5 (05/2015)
PermalinkMolecular level understanding of tanning using an organo-zirconium complex / Balaraman Madhan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVIII, N° 11 (11/2003)
PermalinkNatural dyeing of leathers using natural materials / Jonnalagadda Raghava Rao in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIII, N° 3 (02/2008)
PermalinkA new chromium-zinc tanning agent : a viable option for less chrome technology / Balaraman Madhan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVII, N° 5 (05/2002)
PermalinkA new leather-making process for meeting eco-label standards : Processing of goatkins / Subramani Saravanabhavan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CI, N° 5 (05/2006)
PermalinkA novel approach towards preservation of skins / K. C. Kannan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CV, N° 11 (11/2010)
PermalinkA novel formaldehyde-free synthetic chrome tanning agent for pickle-less chrome tanning : comparative study on syntan versus modified basic chromium sulfate / Palanisamy Thanikaivelan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVII, N° 4 (04/2002)
PermalinkPhysico-chemical and structural studies on leathers tanned using high exhaust basic chromium sulphate salt / Jonnalagadda Raghava Rao in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCIII, N° 5 (07/1998)
PermalinkPhytoremediation of soil using Sesuvium Portulacastrum - Part I / Swarna Vinodh Kanth in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIV, N° 1 (01/2009)
PermalinkRecovery and reuse of chromium from semichrome liquors / Jonnalagadda Raghava Rao in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVII, N° 3 (03/2002)
PermalinkReuse of solid waste from juice industry (citrus sinensis peel) in the extraction of antioxidants with enhanced activity through polymer encapsulates for the preservation of skin / Marimuthu Pradeep Kumar in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIX, N° 7 (07/2014)
PermalinkRole of phenolics in the stabilization of collagen / Balaraman Madhan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCIX, N° 4 (04/2004)
PermalinkA semi-empirical quantum mechanical modeling study on the interaction of collagen-like peptides with polyphenolic molecules : An attempt to gain insights into vegetable tanning / Balaraman Madhan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVIII, N° 7 (07/2003)
PermalinkSingle step hair removal and fiber opening process : Simultaneous and successive addition of protease and a-amyiase / Palanisamy Thanikaivelan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CI, N° 11 (11/2006)
PermalinkStepping into third millennium : Third generation leather processing : A three step tanning technique / Palanisamy Thanikaivelan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVIII, N° 5 (05/2003)
PermalinkStimuli responsive leathers using smart retanning agents / Sangeetha Subramanian in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVII, N° 6 (06/2012)
PermalinkStudies on phosphonium based combination tanning : less chrome approach / N. N. Fathima in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVI, N° 9 (09/2011)
PermalinkStudies on tanning with zirconium oxychloride : Part I. Standardization of tanning process / A. Sundarrajan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVIII, N° 3 (03/2003)
PermalinkStudies on tanning with zirconium oxychloride : Part II. Development of a versatile tanning system / Balaraman Madhan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVIII, N° 3 (03/2003)
PermalinkStudies on the development of leathers from formaldehyde-free melamine syntan / Swarna Vinodh Kanth in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVII, N° 5 (05/2012)
PermalinkStudies on the development of a multi-functional syntan / R. Nataraj in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIV, N° 7 (07/2009)
PermalinkStudies on the development of pickle-sess vegetable tanning / Subramani Saravanabhavan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCIX, N° 7 (07/2004)
PermalinkStudies on the removal of inter-fibrillary materials part I : Removal of protein, proteoglycan, glycosoaminoglycans from conventional beamhouse process / Balaraman Madhan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CV, N° 5 (05/2010)
PermalinkStudies on the removal of inter-fibrillary materials. Part II : removal of protein, proteoglycan and glycosoaminoglycans from biobased pre-tanning process / Balaraman Madhan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CV, N° 6 (06/2010)
PermalinkStudies on the stabilization of collagen using dialdehyde starch : Part I. Effect of autoclaving on dialdehyde starch / Swarna Vinodh Kanth in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CI, N° 12 (12/2006)
PermalinkStudies on the use of Sesuvium Portulacastrum - Part II / Swarna Vinodh Kanth in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIV, N° 1 (01/2009)
PermalinkTannic acid-phosphonium combination : A versatile chrome-free organic tanning / N. N. Fathima in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CI, N° 5 (05/2006)
PermalinkTanning agent based on mixed metal complexes of aluminium and zinc / Balaraman Madhan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVI, N° 9 (09/2001)
PermalinkTanning studies with basic chromium sulfate prepared using chrome shavings as a reductant : A call for 'wealth from waste' approach to the tanning industry / Jonnalagadda Raghava Rao in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCIX, N° 4 (04/2004)
PermalinkThe development of an integrated rechroming-neutralization-post tanning proces manufacture of upper leathers from goatskins / T. Ayyasamy in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 89, N° 2 (03-04/2005)
PermalinkThe three pot solution for chromium, tannins and solid waste : Recovery and reuse technique for spent semi-chrome liquor and chrome shavings / Subramanian Saravanabhavan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 88, N° 5 (09-10/2004)
PermalinkThermochromism for smart leathers / Vairaperumal Tamilmani in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CX, N° 6 (06/2015)
PermalinkTowards sustainable leather production vegetable tanning in non-aqueous medium / Narayana Reddy Gari in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CX, N° 4 (04/2015)
PermalinkUnderlying principles in chrome tanning : Part 1. Conceptual design of pickle-less tanning / Wondu Legesse in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVII, N° 12 (12/2002)
PermalinkUnderlying principles in chrome tanning : Part 2. Underpinning mechanism in pickle-less tanning / Palanisamy Thanikaivelan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCIX, N° 2 (02/2004)
PermalinkUse of ternary solvent (water - ethanol - ethyl acetate) medium for leather processing : a possible paradigm change / Bhargavi Narayana Reddy Gari in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXI, N° 7 (07/2016)
PermalinkUtilization of calcium alginate beads as adsorbent for removal of dyes from tannery wastewaters / Rathinam Aravindhan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CI, N° 6 (06/2006)
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