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Instituto de Ciencia de Materiales de Madrid - Materials Science ...

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13. Tintas resistentes a altas temperaturas<br />

para sistemas <strong>de</strong> impresión por<br />

or<strong>de</strong>nador <strong>de</strong> productos semiacabados<br />

Palabras clave: tintas alta temperatura, nanoparticulas,<br />

fritas<br />

El Proyecto tiene como objetivo la preparación <strong>de</strong> tintas<br />

para ser impresas sobre superficies vítreas, cerámicas<br />

o metálicas mediante sistemas controlados por or<strong>de</strong>nador<br />

y a muy altas temperaturas (800-1100 °C) en aplicaciones<br />

<strong>de</strong>corativas <strong>de</strong> productos semiacabados.<br />

A<strong>de</strong>más, estos materiales tienen que tener buenas características<br />

mecánicas, química, buena adhesión y estabilidad<br />

a luz UV. El método Sol-Gel se presenta como<br />

una interesante opción a ser utilizada en este proyecto,<br />

principalmente por su capacidad <strong>de</strong> po<strong>de</strong>r manipular<br />

las matrices (inorgánicas o híbridas orgánicas-inorgánicas)<br />

y obtener los pigmentos o nanopartículas a<strong>de</strong>cuadas<br />

que cumplan los requisitos a<strong>de</strong>cuados para su<br />

uso en tintas <strong>de</strong> color <strong>de</strong> estas características. El consorcio<br />

<strong>de</strong> este proyecto esta formado por Coates<br />

Electrographics, que es una importante industria<br />

experta en manufacturación <strong>de</strong> tintas; Cer<strong>de</strong>c, que es<br />

un fabricante <strong>de</strong> pigmentos; Philips, St Gobain, y<br />

Hoogovens, que serán los tres mayores end-users en<br />

diferentes sectores industriales <strong>de</strong> los materiales en<br />

<strong>de</strong>sarrollo y en su aplicación; Wie<strong>de</strong>nbach, que es un<br />

lí<strong>de</strong>r en la fabricación <strong>de</strong> impresoras y equipamiento<br />

para impresión controlada; y dos centros <strong>de</strong> investigación:<br />

Bristol University en la parte <strong>de</strong> coloi<strong>de</strong> química<br />

y el ICMM para la investigación fundamental y <strong>de</strong>sarrollo<br />

<strong>de</strong> la tecnología Sol-Gel, Nanopartículas, pigmentos<br />

y colorantes.<br />

13. High-temperature Inks and computerized<br />

reliable prynting system for marking<br />

and <strong>de</strong>coration of products and semifinished<br />

products - INCOREDEC<br />

Keywords: high temperature Inks, nanoparticles technology,<br />

liquid frits<br />

Ever-increasing market requirements impose new<br />

<strong>de</strong>mands on fast and flexible marking and <strong>de</strong>coration<br />

of products and semi-finished products, especially in<br />

processes and products that involve high temperatures<br />

(up to 800 ?C). Marking is important for tracing purposes<br />

during the manufacturing process, thus allowing<br />

quality control and yield improvement; Decorating<br />

activities should take place at the end of the production<br />

line, where items can be given distinctive, customised,<br />

markings. To achieve this a very reliable process is<br />

necessary, because the ad<strong>de</strong>d value is high. A computer-controlled<br />

printing process will be nee<strong>de</strong>d; and<br />

for current software-driven/computer-controlled printing<br />

processes no satisfactory temperature-resistant<br />

inks are available. For satisfactory high-temperature<br />

applications, inks will require:high-temperature resistance,<br />

mechanical resistance to abrasion in everyday<br />

use, chemical resistance to household cleaners, resistance<br />

to UV light, good adhesion to product surfaces.<br />

This project aims to <strong>de</strong>velop a range of inks that are<br />

suitable for marking/<strong>de</strong>corating glass, ceramics, and<br />

metals; that have the advantages listed above; and that<br />

can be used in software-controlled, non-contact, printing<br />

equipment. Such inks will have to be resistant to<br />

high temperatures over a long period of time.<br />

1. M. Zayat and D. Levy, Chem. Mater. 12(9), 2000: 2763-2769.<br />

2. M. Zayat and D. Levy, J. Sol-Gel Sci. and Technol., 25(3), 2002: 201-206.<br />

Proyectos<br />

CE-BRITE/EURAM: BE97-4605 (COST CONTRACT N.BRPR-CT98-0732): “High-Temperature Inks and Computerized Reliable Prynting<br />

System for Marking and Decoration of Products and Semi-Finished Products”- INCOREDEC<br />

CICYT-MAT98-1637-CE: “Tintas <strong>de</strong> Alta Temperatura y Sistemas <strong>de</strong> Imprenta Fiables por Or<strong>de</strong>nador y Productos Semiacabados.<br />

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