Thermal papers are those that receive a coating on their surface that makes them heat sensitive. Consequently the thermal printing system does not require ink in the printer, as this is applied directly to the paper. Thermal paper is a special paper type that is manufactured with a special coating that aids in ink less printing. On application of heat to the coating, a clear image is formed on the paper with no requirement for ribbons or inks. It provides high-definition images that stay intact for a long time and therefore are reliable and more useful for important documents. Thermal papers are used for a wide range of applications such as tax receipts, credit card receipts, bank statements, boarding passes, adhesive labels, lottery tickets and others.lottery tickets and others.

Thermal paper of Oji (Thailand) Ltd. is produced under the brand name of "Thermax" utilizing the advanced technological know-how from Oji Paper Group. Images developed from Oji are clear-cut with high density and easy to read. With enhanced store-ability, anti-fading, resistance to heat and light, and high durability, developed images of Oji paper are sustainable over an extended period of time. Oji paper contains suitable ion content and pigment for longer head life of thermal print-head