Articles - Leather Technology Magazine Nš78
Latest developments in non-chrome
articles
Enrique Comes1, Olga Ballús1,
Ramón Palop1
1Cromogenia Units, S.A, Farell No. 9, Barcelona, Spain,
Telephone: 34-93-2643464,
e-mail: curtidos@cromogenia.com
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Latest developments in non-chrome
articles
Key Words: Wet white, Aldehydes, Footwear, Upholstery, Physical Resistance
ABSTRACT
There is a growing demand for the manufacturing of chrome-free
leather from the Tanning Industry, especially for footwear and
upholstery.
In this study, in the first place, we have optimized the conditions
of application of two aldehyde polymers (P.W.W-1 and P.W.W-2).
A W. W. process was developed therefrom, where it is used as a
single product.
In the second place, an OPTIMAL retanning process was studied,
assessing the influence of 11 synthetic retanning agents, as well
as tara and mimosa.
In the third place, and as a consequence of the foregoing, a
complete process for non-chrome leather is proposed, which is
adaptable to the different articles required.
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