Stamp printing

Stamps printed with phosphor-containing inks... 

Bonding embossed or die-stamped printed-circuit boards Bonding copper foil to dielectric material (laminates or flexible film)... 

The stamp printed by the German government in the honor of Kekule s discovery. 

Chemists also have been honored on U.S. postage stamps. One example is a 29< stamp printed in 1993 honoring Percy L. Julian, an African-American chemist who was the grandson of siaves. Juiian is noted for his synthesis of steroids used to treat glaucoma and rheumatoid arthritis. As a holder of more than 100 patents, he was inducted into the National Inventors Hall of Fame in 1990. 

Table 1. Advancing Water Contact Angles Measiu-ed on the Surfaces of Stamp Materials and Glass Coverslips before and after Flat-Stamp Printing...

Stamps and molds are usually prepared from a master with relief structure on its surface by replica molding where the elastomer precursor is cast onto the master and is peeled off after polymerization. As elastomer most notably polydimethyl-siloxane (PDMS) is used. With micro-contact printing, a nonphotolithographic technique, the stamp prints the replica information onto a support, often in the form of self-assembling monolayers changing the surface characteristics to lipophilic on the contact spots (Fig. 18.4). The noncontacted area can be etched off or plated by deposition in an ensuing step. " ... 

Stamp printing utilises a soft stamp which is coated, for instance by screen printing, and the pattern is eventually transferred onto a substrate by physical contact. This technique is particularly useful for the patterning not planar substrates, such as ceramic dishes. 

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