METHOD FOR THE ANTIMICROBIAL PROTECTION OF HIDES DURING THE TANNING PROCESS WHICH INCLUDES A BIOCIDAL COMPOSITION AND A LUMINESCENT ADDITIVE ALLOWING THE IDENTIFICATION THEREOF

The present invention relates to a method for antimicrobial protection applied to hides in the tanning process incorporating a biocidal composition and an additive allowing the identification of its presence by means of a luminescent effect, as well as certifying its originality using luminescence e...

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1. Verfasser: BELTRÁN AZNAR, Noelia
Format: Patent
Sprache:eng ; fre ; spa
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Zusammenfassung:The present invention relates to a method for antimicrobial protection applied to hides in the tanning process incorporating a biocidal composition and an additive allowing the identification of its presence by means of a luminescent effect, as well as certifying its originality using luminescence encryption techniques, wherein the composition is added in the tanning process immediately after adding the chromium or titanium salts and in an amount between 0.1% and 5% by weight of the material to be tanned and comprises: phosphate glass with silver between 3% and 5%; silicone in an amount between 1% and 3.5%; aliphatic hydrocarbons between 0.1% and 0.30%; and water between 90% and 95%, and the luminescent additive is added in an amount between 0.1% and 5% of the weight of the material to be tanned and comprises between 20% and 40% silica; alumina in a proportion between 10% and 30%; calcium fluoride between 30% and 50%; erbium (III) fluoride between 0.5% and 3%; ytterbium (III) fluoride between 5% and 15%; thulium (III) fluoride in a maximum amount of 5%; and europium (III) fluoride in a maximum amount of 5%, with respect to the total weight of the luminescent additive. La presente invención revela un método de protección antimicrobiano aplicado a los cueros en el proceso de curtido que incorpora una composición biocida y un aditivo que permite la identificación de su presencia por medio de un efecto luminiscente, además de certificar su originalidad con técnicas de encriptación de la luminiscencia, donde la composición se añade en el proceso de curtido inmediatamente después de la adición de las sales de cromo o titanio y en una cantidad entre el 0.1 y 5% del peso del material a ser curtido y comprende: vidrio de fosfato con plata entre 3 a 5%; silicona en un 1 y 3.5 %; hidrocarburos alifáticos ente 0.1 y 0.30%; y agua en 90 y 95%, y el aditivo luminiscente se añade en una cantidad entre el 0.1 y 5% del peso del material a ser curtido y comprende entre 20 y 40 % de sílice; alúmina en una proporción entre 10 y 30%; fluoruro de calcio entre 30 y 50%; fluoruro de Erbio (III) entre 0.5 y 3%; fluoruro de iterbio (III) entre 5 y 15%; fluoruro de tulio (III) en un máximo de 5 %; y fluoruro de europio (III) en un máximo de 5%, con respecto al peso total del aditivo luminiscente. La présente invention concerne une méthode de protection antimicrobienne appliquée aux cuirs dans le processus de tannage qui comprend une composition biocide et un additif qui permet l'ide