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Search Tag: ISTT
- A cost-effective method of reducing loose grain damage during the bating process
IntroductionEnzymatic bating is an important part of the leather making process. Bating enzymes help remove unwanted skin components from the hide structure, as well as any scud present on the grain layer. Good bating leads to clean, soft leather. Under bating results in poor removal of unwanted skin components, and a firmer crust leather ...moreAcid swelling – how does it affect chrome tanning and the resultant leather?
IntroductionMost new tanners learn, either through courses that they attend, or from experienced tanners in the tannery where they are employed, that it is important to use normal salt (sodium chloride) in the pickling process prior to tanning in order to prevent acid swelling of the hides or skins. Almost all wet blue plants use salt in ...moreThe debate – and heat – over the closure of ICLT needs to end, and there are ways forward
In a fascinating 3-way Teams discussion (4, but I was just an observer) last month between SATRA’s Dr Christine Anscombe, the ISTT’s Dr Clive Jackson-Moss and Authenticae’s Karl Flowers, the likely future of training in the tanning industry in Europe, and in countries which traditionally sent students to Europe, took som ...moreThe potential of water hyacinth as a source of vegetable tannins
IntroductionDepending on the type of leather being produced, hides and skins are normally tanned using either a mineral or a vegetable tanning process. Chrome tanning accounts for more than 90% of the world’s leather production, but there is concern over the environmental impact of this tanning method. Vegetable tanning is a more en ...moreDecoding Tanning Science: Short – term preservation of hides using wheat bran
IntroductionIn order to prevent hides from rotting between the time the animal is slaughtered and the time the hide is processed in the tannery, they need to undergo some form of preservation. The most commonly used form of preservation is salting, which dehydrates the hide and thus prevents bacterial growth. It is estimated that at least ...moreDialdehyde starch, a sustainable, environment-friendly tanning chemicalThis is part of a series contributed by the International School of Tanning Technology (ISTT) in Grahamstown, E. Cape, SA, summarising complicated research papers into short articles more readily comprehensible to a wider audience. ...moreFactors that affect the area yield of leather in a tannery
Grahamstown, E. Cape, SA - This article is a summary of practical experience that was gained by a tanner working in a shoe upper tannery over a period of close to 40 years. ...more
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