Thermographic
Printing is a special technique relying on heat to print letters or
create images on a sheet of paper. This printing technique is also a
post print process done inline with the printing.Types of Thermal Printing
- Direct Thermal Printing: This method involves
coating the paper with a material that changes color when heated.
- Thermal Transfer Printing: This method is more
complex wherein a ribbon melts off onto a sheet of paper while
heating. This is also known as thermal ink transfer printing.
Special thermography powder is sprayed on a paper sheet after it is removed from an offset printing press. The powder is then vacuumed off of the sheet and is left only where there is an image, or printed ink. The sheet then travels through a heat tunnel; causing the powder to melt and leave behind a raised image like on business cards, or envelopes.
Application of Thermography
- Fax Printers
- Business Cards
- Letter Head
- Invitation
