Zenith pioneers green leather fungicides

Green fungicide technologies
Published:  26 August, 2015

Dennis L. Dalton, Zenith Industrial Chemicals, Singapore. Article first published in ILM May-June 2015 edition. For more information about Zenith Industrial Chemicals please contact the author: info@zenithindustrialchem.com


Review of proteolytic enzyme activity using Löhlein-Volhard

Published:  24 June, 2015

Dr Heinrich Francke, Zschimmer & Schwarz, Lahnstein, Germany. Report of the work carried out by the VGCT-commission/TEGEWA-Leather Auxiliaries Work Group in Germany

Rodolfo Ampuero

The importance of leather smell

Rodolfo Ampuero, Team Leader, Automotive Leather Division, Zschimmer & Schwarz
Published:  10 June, 2015

Article first published in ILM January-February 2015 edition. "If you are ambitious to have found a new science, measure a smell”, Alexander Graham Bell, 1914. If I said you have to lose one of your senses, but you get to choose which one, most of you would probably choose your sense of smell, especially if you compare it to vision or hearing. The sense of smell is a very subtle sense in our world. It’s a sort of background sense and it seems we don’t spend a lot of time paying attention to smells.


Electrostatic charging of leather – influencing factors

Electrostatic charging
Published:  10 June, 2015

Dr Anke Mondschein and Dr Michael Meyer, Forschungsinstitut für Leder und Kunststoffbahnen (FILK), Freiberg, Germany. Article first published in ILM January-February 2015 edition. 


New water-based PU coating concept

Finishing technology
Published:  28 January, 2015

A new environmentally-sound hydro PU coating system for leather and non-leather substrates. By Shahram Madi, TFL China Ltd, China and Dr Jürgen Christner, TFL Ledertechnik AG, Switzerland. This article was first published in ILM September-October 2014 edition page 84.

Elton Hurlow

Fungicides – meeting regulatory & RSL requirements

Elton Hurlow, Buckman International
Published:  22 January, 2015

A Restricted Substances List (RSL), or the more recent Manufacturers Restricted Substances List (MRSL), notifies us of those chemicals that should either not be used in leather processing, or specifies a maximum allowed level of use. The chemicals on these lists originate from government regulation of potentially hazardous substances (it is the duty of governments to protect the health of their citizens and the environment) or from various brands or eco-label agencies whose desire is to promote “greener” or “safer” products by restricting chemicals that are perceived to be hazardous (Fig 1). 

Xavier Marginet

Alternative technology for sustainable degreasing

Beamhouse technology
Published:  30 December, 2014

AkzoNobel presented its patented technology at the Society of Leather Technologists & Chemists 117th annual conference in Northampton on April 26, 2014, providing an alternative technology for a sustainable degreasing and preserving process.

Prof. Andrew Abbott with Amanda Michel, SLTC President at the 2014 SLTC conference in Northampton.

Ion age processing of leather

Ionic liquids in leather making
Published:  31 December, 2014

Prof. Andrew Abbott,a   Dr Paula Antunesb and William R. Wiseb


Leather nanostructure and performance

Leather nanostructure
Published:  30 December, 2014

Katie H. Sizeland1, Hannah C. Wells1, Melissa M. Basil-Jones1, Richard L. Edmonds2, Richard G. Haverkamp1* 


Is RSL enough?

By BLC Leather Technology Centre
Published:  29 October, 2014

Chemical compliance within the leather industry is a fiercely energetic topic, which is not surprising; leather production is a chemical intensive process and, wherever it is you sit in the leather supply chain, this is a topic that cannot be ignored. 


Testing the mould resistance of wet-white

Testing wet-white
Published:  15 October, 2014

Dr Kathrin Leppchen-Fröhlich, FILK, on behalf of TEGEWA AG Lederhilfsmittel (leather auxiliaries)/VGCT Lederhilfsmittel-Kommission (leather auxiliaries commission), project group mould fungi resistance


Modern chrome tanning is safe

By Dr Dietrich Tegtmeyer and Dr Volker Rabe, Lanxess
Published:  01 October, 2014

Leather is a natural product with a unique set of physical and aesthetic properties. It exhibits high durability and stability in certain environmental conditions, such as variable humidity, extreme temperatures or even, for example, exposure to chemicals. These extraordinary properties are the result of the chemical treatment that the raw hides receive during their conversion into leather, most importantly the tanning process.


Sulphide-free hair save process

Beamhouse technology
Published:  20 August, 2014

Spanish leather chemical maker Cromogenia Units has devised a novel sulphide-free hair save liming process known as the ECO system. The system uses a reducing agent and enzyme treatment under strict processing conditions to remove the hair.

Chris Tysoe

Safe unhairing with enzymes

Enzyme unhairing
Published:  17 August, 2014

ILM interview with Chris Tysoe, Lanxess Deutschland GmbH, concerning the new enzyme-based process technology X-Zyme. 


Beamhouse sustainability

Ecological leather making
Published:  13 August, 2014

Italian leather chemical maker Gruppo Biokimica has introduced a range of eco-friendly products for the beamhouse for the wetting back, soaking and degreasing steps.


Preventing chrome VI formation in leather

Article submitted by Zschimmer & Schwarz
Published:  13 August, 2014

Only a few years ago, Chrome VI was not an issue that concerned the leather industry. At some point it started to be discussed, and more recently cases came to light where high values of chrome VI were detected in consumer products. This occurs mainly with shoes or garments made of leather. 

Georgina Mawer

Small but perfectly formed

Published:  19 April, 2014

Georgina Mawer, Chemical and Regulatory Advisor, BLC Leather Technology Centre

Dr Michaela Schröpfer

Effect of elastin degradation on quality

Physical properties
Published:  26 March, 2014

Analysis concerning the influence of elastin degradation on the leather quality, in particular with regard to elongation behaviour and distortion tendency. Dr Michaela Schröpfer and Dr Michael Meyer, Forschungsinstitut für Leder und Kunststoffbahnen (FILK), Freiberg, Germany


Ecotan for sustainable leathers

Chrome-free leather
Published:  04 November, 2013

In the leather industry all tanners face the same problems of minimising the environmental and health impact of their processes when selling into the global market.

X-Zyme from Lanxess

Innovative biotechnology for soaking and liming

New beamhouse innovation
Published:  20 August, 2013

Leather chemical makers Lanxess introduce a new enzyme based beamhouse system which they have developed with Danish enzyme experts, Novozymes