How a new approach to the tannery drum developed [premium content]
A historical look at the evolution of the drum and of Swiss tannery Huni.
World Leather - Feb/Mar 2013
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Machines in the Tannery: Innovators & Research - Turner [premium content]
The core business of the company is the production of classic tannery machinery, including fleshing, setting and shaving machines.
World Leather - Feb/Mar 2012
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Innovation Part 1: Recycling and regeneration [premium content]
Twenty world standard tanneries have opened their doors for in-depth study as part of Tannery of the Year Awards 2009 and 2011. Considerable technical information has been published in World Leather following these visits, and there has been an emphasis on environmental aspects. This article is the first in a series that picks out some of the highlights from the innovation stories these top tanneries have shared with us.
World Leather - Oct/Nov 2011
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The mechanisms of effective soaking: Fresh and brine-cured hides [premium content]
The soaking of fresh cattle hides differs from the soaking of salted or brine-cured cattle hides. This paper reveals the differences between these two types of raw material, including the relationship between hyaluronic acid extraction from the hide into the float and effective soaking, and other related issues.
World Leather - Feb/Mar 2010
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Carbon dioxide deliming of full thickness hides [premium content]
In World Leather May 2007, a list was given of 45 papers that had been published which addressed various aspects of salinity that arise from leather manufacture. To make the compendium as complete as possible, some papers that were still awaiting publication were also included.
This was an unusual step but, with consideration to the growing environmental pressures that tanners are facing, and to make the compendium comprehensive, it was considered right to include this material.
The following is one of the papers that was awaiting publication, and concerns the use of carbon dioxide as a proven method of reducing the total dissolved solids (TDS) content of wastewaters.
CSIRO was at the forefront in the investigation of this technology and its introduction into commercial use. When reading this paper, it should be remembered that the original report was produced in the early 1990s and, as it has only been subject to a very light edit, some minor details will have now changed. The information set down is, however, fundamental to the highly successful technology and this is probably the most informative study written on this subject.
World Leather - 01 - Feb/Mar 2008
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The soaking, unhairing and liming process – Part 3 of 3: Managing the ... [premium content]
In Parts 1 and 2 of this three-part series, detailed guidelines for the successful soaking and unhairing/liming of bovine hides were presented, but there is a problem in practical manufacture. Not only are these initial steps in leather-making the foundation of good quality leather, but the appearance of hides and skins after unhairing and liming is difficult to relate with the final leather.
World Leather - 05 - Aug/Sept 2007
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The practicalities of the unhairing/liming process. Part 2 of 3 [premium content]
This second paper provides detailed information on the key aspects that underpin good practice within commercial unhairing/liming systems.
World Leather - 02 - April 2007
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The soaking, unhairing and liming process: Part 1 of 3 [premium content]
The practicalities of the soaking process.
World Leather - Nov 2006
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Technologies to improve the useful area of leather [premium content]
The manufacturing of leather is facing diverse challenges including pressure from the eco-toxicity point of view, in the form of stringent new regulations. The measures necessary to deal with these issues add to the cost pressure that tanners are experiencing.
World Leather - Aug/Sep 2006
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Back to Basics: Modifying the skin structure & Hides and skins and mec... [premium content]
Essay 1: Before first-time drying and the formation of a flat stable substrate, the conversion of hides and skins into leather can be viewed as two distinct stages: the removal of unwanted skin components and the location of specific materials within the collagen structure. Essay 2: The role of the process vessel in leather manufacture is greater than that of a chemical reactor. While chemical reactions take place, considerable forces are applied to the goods undergoing process. The way these forces are received, and the outcome, strongly affects the chemical distribution within each hide or skin.
World Leather - Nov 2005
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