ENHANCED COMPACTNESS
RICHER COLOURS
INCREASED THICKNESS
It is a powder of natural polymers which have been specially modified to be more similar to the leather and they interact with collagen fibres in different ways depending on the parameters of the tanning bath.
TECSINT VRP is used for all types of chrome retanning, including pure aniline leather and patent leather, as well as for vegetable tanned leather when you wish to maintain or increase leather thickness.
If TECSINT VRP is used as a retanner before chromium in a dosage of 2-4%, it gives a uniform thickness and a full grain finish to the hide, and it favours the exhaustion of chromium in the tanning baths, thus enabling to obtain a fuller leather. If used as a syntan for retanning after neutralisation in a dosage of 4%-8% it creates a very firm, compact and full split. It is particularly suitable for rawhides which tend to have an overly elastic grain and weak sides; at the same time, it also enhances colour fastness and the application of the finishing.
In a dosage of 4%-10% in vegetable tanning or retanning, the leather appears firmer and more compact, with an excellent filling and it will also be possible to decrease the vegetable natural tannin of a few percentage points; by increasing the affinity with the dyes, the baths are increasingly exhausted and the dyes are richer and brighter compared to traditional methods, which, on the contrary, produce dull colours.
Various tests show that on sheep leather all the features listed above are amplified, and on spongy leather we can observe an excellent filling effect even after drumming, as well as a perfect grain. This means that in the following finishing phase the grain is not too wide and there are no marks left by drumming.
TECSINT VRP produce leather that is easy to finish because it do not affect absorption. From the several tests performed on various types of leathers of different thicknesses, we have noticed that when the retanning agent is used together with other polymers of the VR line, in some specific cases, the surface increases by up to 15% and there are no decreases after the trimming or drumming phases.