Even in the 21st Century, the manufacture of leather retains an air of the dark arts, still somewhat shrouded in the mysteries of a millennia old, craft based industry. Despite the best efforts of a few scientists over the last century or so, much of the understanding of the principles of tanning is still based on received wisdom and experience. Leather is made from (usually) the hides and skins of animals - large animals such as cattle have hides, small animals such as sheep have skins. The skin of any animal is largely composed of the protein collagen, so it is the chemistry of this fibrous protein and the properties it confers to the skin with which the tanner is most concerned. In addition, other components of the skin impact on processing, impact on the chemistry of the material and impact on the properties of the product, leather. Therefore, it is useful to understand the relationships between skin structure at the molecular and macro levels, the changes imposed by modifying the chemistry of the material and the eventual properties of the leather. This book aims to contribute to changing the thinking in the industry, to continue building a body of scientific understanding, aimed at enhancing the sustainability of an industry which produces a unique group of materials, derived from a natural source. The Science of Leather is the only current text on tanning science, and addresses the scientific principles which underpin the processes involved in making leather. It is concerned with the chemical modification of collagen, prior to tanning and the tanning reactions in particular. The subject is covered in the following order: collagen chemistry, collagen structure, skin structure, processing to prepare for tanning, the tanning processes and processing after tanning. The aim of the book is to provide leather scientists and technologists with an understanding of how the reactions work, the nature of their outcomes and how the processes can be controlled and changed. The objective is to synthesise a scientific view of leather making and to arrive at an understanding of the nature of tanning - how the wide range of chemistries employed in the art can change the properties of collagen, making leather with different properties, especially conferring different degrees of stabilisation as measured by the hydrothermal stability. Environmental issues are not treated as a separate theme - the impact of leather making on the environment is a thread running through the text, with the assumption that better understanding of the science of leather making will lead to improved processing. The book also reflects on the ways leather technology may develop in the future based on the foundation of understanding the scientific principles which can be exploited. It also includes a subject index, references and a glossary. The book provides the reader with insights into the role science plays in leather technology and provides fundamental understanding, which should be the basis for scientific and technological research and development for the benefit of the global leather industry. The book is aimed at students, leather scientists and technologists, in both academia and industry, in leather production and in chemical supply houses.

The Profitability of leather processing is dependent on a good product and requires the consistent implementation of well under stood process. This book covers latest techniques of leather processing and tanning, so that the industries involved in this process and new entrants can grow up with new technology. Leather tanning as an industry has been subjected to evolutionary forces as technology makes use of new materials, techniques and concepts. This book has been written having all the aspects in mind. This book is an attempt to fill the need of those desirous of starting leather processing industry. The book is very useful for new entrepreneurs, existing units, technocrats, technical institutions etc.

This pioneering volume brings together specialists from contemporary craft and industry and from archaeology to examine both the material properties and the cultural dimensions of leather. The common occurrence of animal skin products through time, whether vegetable tanned leather, parchment, vellum, fat-cured skins or rawhide attest to its enduring versatility, utility and desirability. Typically grouped together as 'leather', the versatility of these materials is remarkable: they can be soft and supple like a textile, firm and rigid like a basket, or hard and watertight like a pot or gourd. This volume challenges a simple utilitarian or functional approach to leather; in a world of technological and material choices, leather is appropriated according to its suitability on many levels. In addressing the question Why leather? authors of this volume present new perspectives on the material and cultural dimensions of leather. Their wide-ranging research includes the microscopic examination of skin structure and its influence on behaviour, experiments on medieval cuir bouilli armour, the guild secrets behind the leather components of nineteenth-century industrial machinery, new research on ancient Egyptian chariot leather, the relationship between wine and wineskins, and the making of contemporary leather wall covering. The Archaeological Leather Group promotes the study of leather and leather objects from archaeological and other contexts. The Group aims to provide a focus for the investigation of leather, and to develop new research by bringing together a broad range of knowledge and experience both practical and academic. Leather is explored through its manufacture, function, context, processing, recording, conservation, care and curation. Members come from a variety of disciplines and include archaeologists, historians, conservators, artefact specialists, materials engineers and leather workers. The Group normally meets twice a year and organises one scholarly meeting in the spring, and visits a museum, working tannery or other place of leather interest in the autumn. The Archaeological Leather Group Newsletter is published twice a year, and the website maintains a comprehensive and expanding leather bibliography.

Since the beginning of the leather industry in America, Peabody and leather have always been considered synonymous. The Civil War and Reconstruction Era brought great prosperity to the industry, and by the late 19th century, the leather industrys success was firmly established in Peabody. After the great Boston fire of 1872, many leather shops in Boston were completely destroyed, leaving Peabodys tanneries unrivaled. In 1894, Arthur C. Lawrence and his A. C. Lawrence Leather Company arrived in Peabody, employed thousands of workers, and secured the citys place in history as the largest manufacturer of calf and sheep skins in the world, earning Peabody the title of Leather Capital of the World.

Energy from Toxic Organic Waste for Heat and Power Generation presents a detailed analysis on using scientific methods to recover and reuse energy from Toxic waste. Dr. Barik and his team of expert authors recognize that there has been a growing rise in the quantum and diversity of toxic waste materials produced by human activity, and as such there is an increasing need to adopt new methods for the safe regeneration and minimization of waste produce around the world. It is predominately broken down into 5 sections: - The first section provides and overview on the Toxic waste generation addressing the main components for the imbalance in ecosystem derived from human activity - The second section sets out ways in which toxic waste can be managed through various methods such as chemical treatment, cracking and Electro-beam treatment - The final 3 sections deliver an insight in to how energy can be extracted and recycled into power from waste energy and the challenges that these may offer This book is essential reference for engineering industry workers and students seeking to adopt new techniques for reducing toxic waste and in turn extracting energy from it whilst complying with pollution control standards from across the world. - Presents techniques which can be adopted to reduce toxic organic waste while complying with regulations and extract useable energy it - Includes case studies of various global industries such as nuclear, medical and research laboratories to further enhance the readers understanding of efficient planning, toxic organic waste reduction methods and energy conversion techniques - Analyses methods of extracting and recycling energy from toxic organic waste products

Textile Auxiliaries And Chemicals With Processes And Formulations Isbn 81-86732-93-4 Rs. 950/- Or Us $ 100/- The Book Covers Classificat Ions And Chemistry, Manufacturing Processes Of Textile Auxiliaries, Commercial Textile Auxiliaries, Formulations Of Textile Auxiliaries, Classification Of Surfactants, Details Of Raw Materials, Anionic Surfactants, Cationic Surfactants, Non-Ionic Surfactants, Miscellaneous Important Compounds, Detergent Paste (Textile Grade), Dispersant For Textiles, Leveling And Dispersing Agent, Non-Ionic Surfactants Wetting Agents, Pigment Emulsion For Textiles, Pigments Binders For Textile Printing, Poly Vinyl Acetate Emulsion, Rosin Sizing Agent, Silicone Emulsion, Silk Sizing Liquid (Water Soluble), Softeners (Cationic, An-Ionic And Non-Ionic), Textile And Finishing Agents, Auxiliaries, Textile Chemicals, Textile Printing Paste.

Written by a group of world-renowned experts, the second volume in this groundbreaking set continues where the first volume left off, focusing on fermentation products that contribute to human welfare across a variety of industries. Green technologies are no longer the "future" of science, but the present. With more and more mature industries, such as the process industries, making large strides seemingly every single day, and more consumers demanding products created from green technologies, it is essential for any business in any industry to be familiar with the latest processes and technologies. It is all part of a global effort to "go greener," and this is nowhere more apparent than in fermentation technology. This second volume in the groundbreaking new set, High Value Fermentation Products, focuses on industries that a concerned with human welfare, including the leather industry, textiles, pharmaceutical and medical, food processing, and others. Covering topics such as chitin and chitosan, microbial polyhydroxyalkanoates, propanediol, and many others, the editors and contributors have contributed to an extremely important facet of chemical and process engineering and how to move these industries into a much more sustainable and environmentally conscious direction. From converting waste into apparel to creating healthier foods and more effective medicines, this is truly a monumental work that is a must-have for any chemical engineer, scientist, or chemist.