World congress to meet in Washington

The next XXIX Congress of the IULTCS and the 103rd annual convention of the American Leather Chemists Association will be taking place from June 20-24, 2007, at the JW Marriott Hotel in Washington, DC, United States of America. ALCA president Dennis Shelly and IULTCS president Marc Folachier will open the technical programme at 8 am on Thursday, June 21, with the opening ceremony. This year's technical programme is being organized by vice-president William N Marmer and will offer a wide array of leather technologies covering tanning to finishing to environmental issues. The Heidemann Lecture will commence at 9 am with Lorenz Siggel of BASF giving a lecture on the topic of leather-related collagen modelling. The John Arthur Wilson Lecture will be held at 1:15 pm featuring Richard P Daniels of Green Croft giving a presentation entitled 'Effluent Treatment in the Root Zone. Working with Nature.' Technical sessions will run the entire day from 8 am to 4:45 pm. Technical Programme Schedule - All sessions to be presented in English Session 1 - Tanning emphasis Exploring a Role in Tanning for the Gap Region of the Collagen Fibril by Eleanor M Brown - USDA, ARS, Eastern Regional Research Center, 10:20-10:40am Quo Vadit, Chromium? The Future Directions of Tanning Science by A D Covington - British School of Leather Technology, 10:40-11:00am A New Copolymer of Maleinuric Acid with Acrylic Derivatives for Stable Aluminum Tannage by Hongru Wang - Shaanxi University of Science and Technology, 11:00-11:20am Turning to Nature for 'Eco-benign' Stabilization of Skin Protein by C Muralidharan - Central Leather Research Institute, 11:20-11:40am Optimization of Various Parameters in Vegetable Tanning Using Ultrasound by J M Morera - Igualada Technical Engineering School, 11:40-12:00 noon 48th John Arthur Wilson Memorial Lecture : Tannery Effluent and Reedbeds - Working with Nature - Richard P Daniels, UK, 1:15-2:30pm Session 2 - Environmental emphasis World Environmental Update from International Union of Environment (IUE) Commission of IULTCS by S Rajamani - Central Leather Research Institute 2:30-2:50pm REACH Brings a Major Challenge for the Chemical and Leather Imports into the European Community by Alois Püntener - VESLIC, 2:50-3:10pm Introduction to Visual Displays, 3:10-3:15pm Break and Visual Displays, 3:15-3:45pm Session 3 Evaluation of Environmental Impact of Typical Leather chemicals. Part I: Biodegradability of Fatliquors under Activated Sludge by Bi Shi - Sichuan University, 4:45-4:15pm A Novel Bacterial Enzyme for Destruction/Degradation of Tanned Collagen Materials by Sayeed Sadulla - Central Leather Research Institute, 4:15-4:45pm Friday June 22nd - Day Two Session 4 Transformation Plant for Chromium Waste in Chemical Products for the Leather Industry by J Cot - CSIC, 8:00-8:20am Removal of Phenolic Carboxylic Acids from Aqueous Solution by Using Chrome Leather Waste as Adsorbent by Mina Zhang - Sichuan University, 8:20-8:40am Patented Process for Dry Removal of VOCs from Tannery Gaseous Effluents by M Tomaselli - Stazione Sperimentale per l'Industria delle Pelli, 8:40-9:00am Introduction to Visual Displays, 9:00-9:05am Break and Visual Displays, 9:05-9:55am Session 5 Soaking: An Investigation of How Contemporary Tanners Seek to Balance Operational and Quality Issues in Utilizing Both Fresh and Brine-Cured Hides by George Stockman - Buckman Laboratories inc, 9:55-10:15am Reduction of Water Demand and Treatment Cost in Tanneries Through Reuse Technique by M Gutterres - Federal University of Rio Grande do Sul, 10:15-10:35am Lollar Award Paper - Alternatives to Sulfide Dehairing: Use of Oxidative Agents by Robert L Dudley - United States Department of Agriculture, ARS, ERRC, 10:35-10:55am Life Cycle Assessment (LCA) of the Oxidative Unhairing Process by Hydrogen Peroxide by Sandra Vitolo - Dipartimento di Ingegneria Chimica, 10:55-11:15am ALCA annual business meeting, 11:15-11:45am Saturday June 23rd - Day Three Session 6 Silicates for Hide Curing and in Leather Technology: Curing by Karl Heinz Munz - Testing & Research Institute for Leather Industry, 8:00-8:20am Compact Tanning: Deliming and Pickling Replacement for a Conditioning Compact System by Francisco J Fava - Seta SA, 8:20-8:40am Variational Regularity of Compressibility of Semi-Finished Products in Manufacture of Goatskin - Sheepskin Garment Leather by Zhang Xiao-lei - China Leather & Footwear Industry Research Institute, 8:40-9:00am Study on the Stress-Relaxation Behavior of Nappa Upper Pig Leather by Keyong Tang - Zhengzhou University, 9:00-9:20am Processing changes in the Structure of Lambskin in Relation to the Quality of the Leather by T Allsop - New Zealand Leather And Shoe Research Association, 9:20-9:40am Introduction to Visual Displays, 9:40-9:45am Visual Displays, 9:45-10:15am Session 7 Natural Dyeing of Leathers Using Natural Materials by J Raghava Rao - Central Leather Research Institute, 10:15-10:35am The Future of the Softening of Leather by Wolfgang Herrmann - Münzing Chemie GmbH, 10:35-10:55am Synthesis and Application in the Leather Industry of a New Antimicrobial Complex of Copper (II) with Benzothiazole Derivative by Chen Wuyong - Sichuan University, 10:55-11:15 am Improvements for Infrared Drying: A Leather Finishing Application by S Alonso - CIATEC, 11:15-11:35 am Stick-Slip Behaviour of Leather by Andrea Maedler - FILK, 11:35-11:55 am Session 8 Annoying Energy. II. Solar Heating of Dark Leather by Jerome F Levy - Stahl International, 1:15-1:35pm Novel Acrylic/Silica-Free Matting Technology for Furniture Upholstery Top Coat Finishes by E Nungesser - Rohm And Haas Company, 1:35-1:55pm Investigations into the Water Vapour Permeability of Leather by Heinz-Peter Germann - Lederinstitut Gerberschule Reutlingen, 1:55-2:15pm Introduction to Visual Displays, 2:15-2:20pm Break and Visual Displays, 2:20-3:10pm Session 9 New Micro-sphere Applications in the Leather Industry by Dietrich Tegtmeyer - LANXESS Deutschland GmbH, 3:10-3:30pm The Application of Computerised Image Analysis to Determine Physical Properties of Leather by G Attenburrow - British School Of Leather Technology, 3:30-3:50pm Nondestructive Evaluation of Leather Quality by Means of Acoustic Emission and Airborne Ultrasonics by Valery F Godinez-Azcuaga - Physical Acoustics Corporation (PAC), 3:50-4:10pm Intelligent Traceability: An Innovative Technology in the Leather Industry by Eric Valot - CTC, 4:10-4:30pm Closing Ceremony, 4:30 -5:00 pm Reception and Awards Banquet, 7:00-11:00pm List of Visual Displays Time Slots: Thursday, June 21, 2007 1. Modelling of salt diffusion in raw hide: an optimization of the curing process. Eduard Hernàndez Balada (1), William N Marmer (1), Karel Kolomazník (2) and Robert L Dudley (1). (1) USDA, ARS, Eastern Regional Research Center, USA; and (2) Tomas Bata University, Zlin, Czech Republic. 2. Silicates for Hides and Leather Technology: I. Curing. Karl Heinz Munz (1), Heinz-Peter Germann (2), Chandra Babu Narasimhan Kannan (3), and Richard Daniels (4) (1) Testing & Research Institute for Leather Industry, Vienna/ Austria; (2) Lederinstitut - Gerberschule, Reutlingen/ Germany; (3) Central Leather Research Institute, Chennai/ India; (4) Northampton/ UK. 3. Silicates for hides and leather technology: II. Unhairing. Karl Heinz Munz (1), Heinz-Peter Germann (2), Chandra Babu Narasimhan Kannan (3) and Richard Daniels (4). (1) Testing & Research Institute for Leather Industry, Vienna/Austria; (2) Lederinstitut - Gerberschule, Reutlingen/ Germany; (3) Central Leather Research Institute, Chennai/ India; (4) Northampton/ UK. 4. Silicates for hides and leather technology: soaking liquors for irrigation. Karl Heinz Munz (1), Heinz-Peter Germann (2), Chandra Babu Narasimhan Kannan (3), and Richard Daniels (4). (1) Testing & Research Institute for Leather Industry, Vienna/ Austria; (2) Lederinstitut - Gerberschule, Reutlingen/ Germany; (3) Central Leather Research Institute, Chennai/ India; (4) Northampton/ UK. 5. Research on application of vacuum technology in leather wet processing. Peng Wen-li (1), Dang Xi-an (2), Cheng Feng-xia (1), Chen Shu-ru (1), Wen Huai-xing (2). (1) College of Resources and Environments, Shaanxi University of Science & Technology, China; and (2) College of Mechanical and Electrical Engineering, Shaanxi University of Science & Technology, China. 6. Studies on influence of sodium hydrosulfide and peroxide upon hair-saving enzyme-assisted unhairing. Wei Xu, Lifen Hao. Shaanxi University of Science and Technology, Xian Yang City, PR China. 7. Tanning with condensate of tetrahydroxymethyl phosphonium chloride and urea. Kaiqi Shi, Shuangxi Shao, Ya Li, Lan Jiang, and Ying Han. Institute of Applied Chemistry, Ningbo University of Technology, China. 8. Study on synthesis and application properties of modified starch retannages. Lu Sheng-hua, Li Fang, and Zhou Zhi-Wei. College of Resource & Environment, Shaanxi University of Science & Technology, 9. The inducement and modulation of collagen fibril on crystal morphology of calcium carbonate. Fu Lihong (1) Chai Shuling (1) Cheng Jingqiu (2) . (1) Shandong Key Laboratory of Leather Chemistry and Engineering, Shandong Institute of Light Industry, (2) Division of Transplant Immunology Key Laboratory of Transplant Engineering and Immunology, Ministry of Health PR China. 10. A comparative study on the photochromic colour changing performance of leather substrates with other protein and polyamide substrates dyed with photochromic acid dyes. M R B Shah (1), R M Christie (2), K M Morgan (2), R Shamey (3). (1) Bangladesh College of Leather Technology, Bangladesh; (2) School of Textiles and Design, Heriot-Watt University, Galashiels / UK; and (3) TECS, North Carolina State University, USA. 11. Synthesis and characterization of fluorinated polyacrylate emulsion with hard-core/soft-shell structure. Chuan Wang, Xue-Pin Liao, Bi Shi. The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, PR China. 12. Synthesis characterization and comparison of cationic aqueous polyurethane. Chai Shu-ling (1), Fu Li-hong (1), Tan Hui-min (2). (1) School of Light Chemistry and Environmental Engineering, Shandong Institute of Light Industry, China; and (2) School of Material Science and Engineering, Beijing Institute of Technology, China. 13. Studies on surface properties of leather - effect of finishing formulations. Swarna V Kanth, C Kalai Selvi, and Aruna Dhathathreyan, Central Leather Research Institute, India. 14. The characterization of chemicals used in finishing. B Naviglio, G Calvanese, G Tortora, D Caracciolo, R Aveta. Stazione Sperimentale per l'Industria delle Pelli, Italy. 15. Changes in mechanical behaviour by shrinkage of leather. Keyong Tang, Boen Zhang, Pengxiang Jia, Shufa Qin. College of Materials Science and Engineering, Zhengzhou University, China. 16. Chromium recovery from the ash from incineration of waste leather for the production of sodium chromate. S V Pereira (1); N R Marcílio (1); A Rozek1; and M Gutterres (2), Federal University of Rio Grande do Sul (UFRGS), Department of Chemical Engineering: (1)Laboratory of Waste Processing and (2) Laboratory of Leather and Environment Studies, Brazil. 17. Study of fatliquoring parameters using experimental design. Letícia Melo dos Santos, Mariliz Gutterres. Departamento de Engenharia Química - Universidade Federal do Rio Grande do Sul, LaCouro - Laboratório de Estudos em Couro e Meio Ambiente, Brazil. 18. Study on determination of Chromium (VI) in leather. Bing Shen, Qi Hui Xi and Meng Meng Zhang. Comprehensive Laboratory of Jiaxing Entry-Exit Inspection and Quarantine Bureau, PR China. 19. A new process to improve the efficiency of isolating collagen protein from chrome shavings by recycling and increasing its concentration. Ding Zhiwen, Jia Jizhang, Pang Xiaoyan. China Leather & Footwear Industry Research Institute, China. 20. The methanogenic treatment of tannery wastewater. Gao Zhongbai (1), Johan van Groenestijn (2) and Peter Letitre (2). (1) China Leather & Footwear Industrial Research Institute (CLFI), China; (2) TNO Environmental, Energy and Process Innovation (TNO-MEP), the Netherlands. 21. The UV shielding, antimicrobial and antifungal effect of novel nano-SiO2/collagen materials. Li Hui, Zhou Rongqing, Fan Haojun, Huang Jun, Liu Yan and Shi Bi. The key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, China. 22. Preparation of zirconium(IV)-loaded adsorbent by using skin waste and its adsorption properties to arsenate. Li-Min Jiao, Yan-Jie Huang, Xue-Pin Liao. The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, PR China. 23. Evaluation of environmental impact of typical leather chemicals. Part II ÅF Biodegradability of organic tanning and retanning agents under activated sludge. Danhong Sun, Wenjun Zhang, Yulu Wang, Qiang He, and Bi Shi. The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, PR China. 24. Evaluation of environmental impact of typical leather chemicals. Part III ÅF Biodegradability of vegetable tannin extracts under activated sludge. Qiang He, Danhong Sun, Wenjun Zhang, Wei Lin, and Bi Shi. The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, P. R. China. 25. The effect of chrome in leather making and the influence of chrome tannage on the environment. Cheng Baozhen. Tianjin University of Science and Technology, China. 26. Bioactive protein-based additives and new materials obtained from leather manufacture byproducts. Carmen Gaidau (1), Mihaela Ghiga( 1), Laurentiu Filipescu (2), Emil Stepan (3), and Dragos Taloi (2). (1) Leather and Footwear Research Institute Bucharest, Romania, (2) Politehnica University of Bucharest, Romania; and (3) National Institute for R&D for Chemistry and Petrochemistry 'ICECHIM', Romania. Friday, June 22, 2007 27. Bio-additives-aided skin preservation - An approach for salinity reduction. N Vedaraman, V John Sundar, T Rangasamy, C Muralidharan, and G Swaminathan. Central Leather Research Institute, Chemical Engineering Division, India. 28. A new approach for separating and purifying bacillus subtilis AS1.398 enzyme by affinity chromatography. Wang Rui, Li Zhi-qiang, Liao Long-li, Chen Min, Cheng Hai-min, Wang Ying-mei, Li Zhou, and Duan Wu-wu. Key Laboratory of Leather Chemistry and Engineering, Sichuan University, Ministry of Education, China. 29. Enzymatic hydrolysis of animal hair using commercial proteases. N Vedaraman (1), R Mueller (2), R Jayakumar (1), C Muralidharan (1) and P G Rao (1). (1) Central Leather Research Institute, Chemical Engineering Division, India; (2) Arbeitbereiche Bio technologie II, TUHH, Germany. 30. No-pickling and high exhaustion chrome: Tanning technology - A review. Chen Jiping and Chen Wuyong. The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, PR China. 31. An eco-friendly and economizing water technique: recycling reclaimed water from the tannery in pickling and chrome tanning. Kunyu Wang, Shu Liu, Haiyan Ju. Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education, PR China. 32. Modified fleshing hydrolysate as a tanning agent and chrome exhaust aid for improved leather properties. J Kanagaraj, N K Chandra Babu and S Sadulla. Central Leather Research Institute, Leather Processing Division, India. 33. Effect of retanning on the dry heat shrinkage behaviour of cattlehide collagen fibres. Keyong Tang, Boen Zhang, Pengxiang Jia, Bin Ren. College of Materials Science and Engineering, Zhengzhou University, China. 34. Application of melamine formaldehyde condensate as a retanning agent for leather processing. Sanjeev Gupta, S Jaisankar, J Kanagaraj and R Ganesh Jeevan. Central Leather Research Institute, Leather Process Technology Division, India. 35. Carbodiimides in Leather Finishing. II. Recent Advances. Rens Hesselmans, Andre Derksen, and Willem Posthumus, Stahl International bv, The Netherlands. 36. Biosorption of phenolic compounds from post tanning sectional stream using chemically modified seaweed. R Aravindhan, J Raghava Rao, Balachandran Unni Nair. Central Leather Research Institute, Chemical Laboratory, India. 37. Biosorption performance of bacillus subtilis biomass for removal of chromium from tannery effluents. R Aravindhan, J Raghava Rao, Balachandran Unni Nair. Central Leather Research Institute, Chemical Laboratory, India. 38. Tanning hide collagen for controlling Chromium (VI). Dipankar Chaudhuri (1) and Pinaki Bhattachariya (2). (1) Regional Centre for Extension and Development (Central Leather Research Institute, India, and (2) Department of Chemical Engineering, Jadavpur University, Jadavpur, India. Saturday June 23, 2007 39. Reversed processing for the production of bovine high quality chrome-tanned leathers. Domenico Castiello (1), Monica Puccini (2), Maurizio Salvadori (1), Sandra Vitolo (2). (1) Po.Te.Co. Scrl - Polo Tecnologico Conciario, Italy; and (2) Dipartimento di Ingegneria Chimica, Chimica Industriale e Scienza dei Materiali - Università di Pisa, Italy. 40. Oxidative dehairing: To relime or not to relime? Robert L Dudley and William N Marmer. USDA, ARS, Eastern Regional Research Center, USA. 41. Improved monitoring of decorin in hides during their processing into leather. Mila L Aldema-Ramos, Renée W Latona, and William N Marmer. USDA, ARS, Eastern Regional Research Center, USA. 42. High exhaust chromium tanning - role of enzymes in tanning process. G C Jayakumar, T E Rajkumar, G Sankar, Swarna V Kanth, R Venba, and N K Chandrababu. Central Leather Research Institute, India. 43. Biodegradable leathers: role of biopolymers as tanning agents. Swarna V Kanth, B Madhan, P Saravanan, J Raghava Rao, Balachandran U Nair. Central Leather Research Institute, Chemical Laboratory, India. 44. Levelling and fixation of leather dyes. Campbell T Page. TFL Ledertechnik AG, Switzerland. 45. Application of some new environmentally friendly liquid dyes in dyeing protein supports. Carmen Gaidau (1), Anca Angela Athanasiu (2), Elena Ionita (2), Maria Giurginca (3), and Aurelia Meghea (3). (1) Leather and Footwear Research Institute Bucharest, Romania; (2) National Institute for R&D for Chemistry and Petrochemistry 'ICECHIM', Romania; and (3) Politehnica University of Bucharest, Romania. 46. Drying chrome-free leather using a combination of vacuum and toggling. C-K Liu, N Latona, P Cooke, G DiMaio. USDA, ARS, Eastern Regional Research Center, USA. 47. New direct approach for evaluation and quality control of fatliquor and leather extract: triglyceride finger print analytical method. R Vago1, G Gambarini (2), and A Papagni (3). (1) Analytical Laboratory, SOGRAF Chemical, Italy; (2) Formulation Laboratory, KRABE Chemie, Italy; and (3) Deptartment of Materials Science and CNISM, University of Milano Bicocca, Italy. 48. Preparation and characterization of fillers produced from renewable resources: Evaluation of treated leather. M M Taylor, W N Marmer and E M Brown. USDA, ARS, Eastern Regional Research Center, USA. 49. Chitosan as a finishing agent for shoe upper leather. S Jeyapalina (1), R J Heath (1), B Haworth (1), T.Staikos (2) and S Rahimifard (2). (1) Institute of Polymer Technology and Material Engineering, Loughborough University, UK; (2) The Wolfson School of Mechanical and Manufacturing Engineering, Loughborough University, UK 50. Abrasion test of leather and artificial leather for upholstery and cars. Anja Weisse and Haiko Schulz. FILK - Forschungsinstitut für Leder und Kunststoffbahnen gGmbH, Germany. 51. Chemical engineering experience for tannery optimization. Karel Kolomaznik, Hana Charvatova, Miloslav Fialka and Dagmar Janacova. Tomas Bata University, Zlin, Czech Republic. 52. Use of renewable energies for electricity supply in tanneries. L F Cabeza, M Medrano, J Roca and M Nogués. University of Lleida, EPS - CREA, Spain. 53. Two-stage leather drying process. S Jeyapalina (1), G E Attenburrow (2) and A D Covington (2). (1) Institute of Polymer Technology and Material Engineering, Loughborough University, UK; (2) British School of Leather Technology, University of Northampton, UK. 54. Mechanical and chemical properties of modified gelatin obtained through thermal hydrolysis of chrome shavings. M Catalina (1), G Attenburrow (1), Jaume Cot (2), A D Covington (1) A P M Antunes (1). (1) British School of Leather Technology, University of Northampton; and (2) Consejo Superior de Investigaciones Científicas (CSIC), Spain. 55. Elimination of free formaldehyde in leather by Vinca rosea and Camellia sinensis Extracts. Eser Eke Bayramoglu, Aysegül Korgan Deniz Kalender, Gürbüz Gülümser, Bugra Okcu and Eylem Kiliç. Ege University, Faculty of Engineering, Department of Leather Engineering, Türkiye. 56. Alternative tannery effluent treatment using reedbed and nanofiltration technology. Wolfram Scholz ( 1), Amélie Lapoulle (2), Dave Cruickshank(2) and Jean-Marie Gigante (2). (1) W2O Environment Ltd, UK; and (2) Tanneries des Cuirs d´Indochine et de Madagascar, France. 57. Alternative process to treatment and upgrading of raw collagen wastes. F Fernández Hervas (1), P Celma Serra (1), J Cisa Ribas (1), J Cot Cosp (2); A Marsal Monge (2); and A Manich Bou (2) E Hernandez-Balada(3). (1) Institut Químic de Sarrià (IQS), Ecotechnology Section, Spain; (2) Consejo Superior de Investigaciones Científicas (CSIC), Research and Development Center (CID), Ecotechnologies Department, Spain; and (3)USDA, ARS, Eastern Regional Research Center, USA. 58. The use of a centrifuge to continuously clarify the liming liquor during lambskin processing. R L Edmonds, New Zealand Leather and Shoe Research Association, New Zealand. 59. Leather as an adsorbent - special characteristics of emission tests. Bernd Matthes and Haiko Schulz. FILK - Forschungsinstitut für Leder und Kunststoffbahnen, Germany. 60. Polyethylene-collagen hydrolysate blends: A new reutilization route to transform a waste of the leather industry into environmentally degradable plastics. Domenico Castiello (1), Emo Chiellini (3), Patrizia Cinelli (3), Salvatore D'Antone (3), Monica Puccini (2), Maurizio Salvadori (1), and Sandra Vitolo (2). (1) Po.Te.Co. Scrl - Polo Tecnologico Conciario, Italy; (2) Dipartimento di Ingegneria Chimica, Chimica Industriale e Scienza dei Materiali - Università di Pisa, Italy; and (3) Laboratorio Materiali Polimerici Bioattivi per applicazioni biomediche ed ambientali - U O Consorzio INSTM - Dipartimento di Chimica e Chimica Industriale - Università di Pisa, Italy. 61. Analytical methods for determining substances under restriction. B Naviglio, G Comite, C Florio, V Girardi, M Scotti. Stazione Sperimentale per l'Industria delle Pelli, Italy. 62. Collagen hydrolysate-tannin complexes -An option for obtaining wealth from chrome shaving wastes. C Shanthi (1), W Madhulatha (2), Suseela Rajkumar (2) and N.K.Chandrababu(2). (2) Central Leather Research Institute, India and (1) Vellore Institute of Technology, India. 63. Biological reduction of Chromium (VI) in leather by chromate reductase. R Venba, Swarna V Kanth, and N K Chandrababu. Central Leather Research Institute, India.