>> High-fastness fatliquors from sustainable resources
New fatliquors based on renewable raw materials have been developed that provide outstanding light and heat fastness performance together with excellent softening effects. This paper gives an overview of the chemistry of fatliquors, and compares the technical performance of these essential products on leather, with their environmental impact expressed as carbon footprint values.
>> World Leather April/May 2012 (395 KB / pdf)
>> Erhöhung der Lebensdauer und Wertbeständigkeit von Leder
Es sind die bekannten Faktoren Licht, Temperatur, Feuchtigkeit und Luftverschmutzung, welche einen wesentlichen Einfluss auf die Lebens- und Gebrauchsdauer von Leder haben. Dazu kommt noch der Einfluss von Schmutz und Pflegemitteln. Je nach Gebrauch spielt sich die Exposition unter verschieden starker mechanischer Belastung ab. Hier soll ein neues Zuricht- und Schutzsystem neu beleuchtet werden.
>> ProLeder 02/2012 (534 KB / pdf)
>> Leather topcoats with anti-soiling and -squeak properties
December 2011/January 2012
In the last few years upholstery and automotive interior designers have increasingly selected leathers in light colours such as white, beige or grey. At the same time, they have chosen to use more leathers with a very high degree of matting. These leathers provide the modern and elegant look designers strive for.
But these leathers are a concern for the quality departments of manufacturers. Very often, the pristine look in the showroom is lost due to soiling of the leather surfaces. It can be said that today soiling is among the main reasons for claims regarding upholstery and automotive leather.
>> World Leather December 2011/January 2012 (943 KB / pdf)
>> Methods for managing chrome in leather making
Today approximately 80% of total leaather tanned is chromium based. Although many alternatives have been studied and do exist, chrome tanning offers significant economic and technical advantages, which cannot be ignored and still make it the preferred way of tanning hides.
>> Leather International Nov/Dec 2011 (2299 KB / pdf)
>> Salt in wastewater from leather manufacturing
The tanning industry generates considerable amounts of solid, liquid and gaseous wastes. However, well planned, clean technology practices, such as the efficient use of resources like chemicals and water, as well as recycling and purification of process floats, allow tanners to reduce disposal costs and comply with environmental waste discharge regulations.
>> Salt in wastewater from leather manufacturing (253 KB / pdf)
>> New development in low salt pickling technology
One of the major environmental problems of the tanning industry is the liquid effluents generated. These contain high amounts of organic matters, sulfates and chlorides. In tannery wastewater the high salinity cannot easily be corrected.
>> New development in low salt pickling technology
(2623 KB / pdf)
>> Advances in the degreasing of hides
A new lipase product is described that provides good degreasing when compared to the use of standard surfactants. It provides additional benefits such as improved grain thightness, better flatness, cleanliness of the hide, improved dyeing levelness , and has the potential to reduce fogging characteristics and improve hydrophobing.
>> Competence Borron (1053 KB / pdf)
>> Fogging for automotive leathers - a new test method
One of the key emission tests that leather is required to undergo by the automotive industry is its propensity to fogging, that is, the ability when heated to emit substances that form a haze-like layer on the windscreen of a car.
>> Fogging for automotive leathers (181 KB / pdf)
>> Reduction of the Salt Freight in Tannery Effluent
In our modern, industrialised society responsibility for active environmental protection is already one of the most important aspects. Not surprisingly environmental awareness has grown immensely in leather production as it has elsewhere too. Tough official regulations governing effluents, waste air and solid waste disposal provide the legislative background to this increased environmental sensitivity. To meet the specified limit values products and application methods must measure up to stringent requirements. Optimum exhaustion of products, environmental compatibility of the by-products formed and avoidance of waste are very important. Compliance with stricter effluent legislation and landfill regulations are difficult challenges to both the leather industry and the industry supplying it with chemicals. In a modern, look-ahead tannery, environmental protection is therefore every bit as important as leather quality, productivity and profitability.
>> Reduction of the salt Freight in Tannery Effluent (253 KB / pdf)
>> OROPON advanced bating technology to optimise useable area
Since O. Röhm introduced enzymatic bating in 1907 the bating process evolved due to the achievements brought about by modern biotechnology. OROPON bating products have been optimised continuously and adjusted to the ever changing conditions of the industry. Further milestones include the introduction of acid OROPON bating products by Röhm, now TFL, in the 60´s respectively beginning of the 80´s. These products were used for pickled skins and wet-blues in order to improve layout and cleanliness.
>> OROPON (427 KB / pdf)
>> Automotive and furniture leather
The demands in characteristics and performance of automotive leather have been changed due to different reasons like competition, globalisation, attractiveness, comfort customers demands or image. Nowadays automotive leather moves in the direction of furniture leather. What will be the compromise between the leather character and the performance?
>> Automotive and furniture leather (462 KB / pdf)