Alphabet – T
2. Tabloid: The word Tabloid refers to the single sheet or page equivalent to half the size of standard News Paper or 11’’ x 17’’. Newsletters are frequently printed on tabloid size paper (and then folded to letter size). Some of the sensational weekly Newspapers and Posters are often printed in tabloid size paper. Such Tabloid size News Papers are called Tabloid journalism. While universally many countries have accepted the ISO standards for the Paper sizes, the Tabloid paper dimensions are still officially used in USA and Canada both of who have not officially accepted the ISO standard for the paper. The most commonly used sizes of Paper in these two countries are Letter, Legal, Ledger and Tabloid.
- Print the matter in letterpress
- Immediately apply the resin powder on the still partially wet ink. The powder sticks to the wet ink.
- Dust it to remove the excess powder from the paper surface other than the one stuck on image. Alternately if you have a vacuum system, then remove excess powder from non print areas of the substrate or paper by vacuum.
- Then place the powdered image print inside a heat chamber or hold it above an low heat apparatus.
- The resin will instantly fuse or melt to show a embossed image
- Remove and stack it.
4. Thermochromic inks : Do not confuse it with Thermographic resin powder used in Thermographic printing. Thermochromic ink is a special ink used for printing on garments, Children’s play kits etc. In addition specially formulated Thermochromic inks are used for printing some of the security documents since the Thermochromic ink’s reaction to temperature changes cannot be replicated on a color copier or laser printer.
Thermochromic inks are sensitive to temperature changes and will appear or disappear at different temperature ranges. Therefore the inks are temperature activated to change their color and are manufactured in various temperature sensitivities as per customer demand provided the ordered volume is high. Otherwise the Thermochromic inks comes even to react in less temperatures such as 15-20°C. When rubbed with a finger, or held between the thumbs that has slight body heat, or exposed to differing temperatures, or blow through mouth the ink changes from a colorless state or to another color and quickly reverts to its original color.
5. Thermal printing : Thermal print refers to those copies obtained on thermal papers which produce images by heat process. There are two types of thermal printers available to produce the digital images. One is the thermal paper, which has shiny look with very smooth feel. They have special coating that reacts with the beamed light source to change its colour to black on exposed areas. When the thermal printer transmit the image it turns into some form of electrical impulse and sends it to the printer head. The sheet reacts to the heat of the printer head which transmit the heat in a specific pattern. This pattern of heat transfer is responsible for creating images in the form of text, symbols or pictures. Many varieties of Thermal papers are available in the market.
The other form of thermal printer uses a ribbon coated wax base ink that melts and form the image by the heat element incorporated print head to cause the images to appear. In both the cases the digitally transferred light beam in micro dots causes the image to appear through heat process.
Color printing is also possible in Thermal printing. Thermal printers print faster and are noiseless than the Dot matrix printers though its system is similar to dot matrix printer only. While the dot matrix printer cause the images to appear by several pins that pushes the ribbon ink on to the paper, in Thermal printing the captured images turns into electrical impulses which heats up the print head to heat those portions of the images on the ribbon to release the wax ink on to the substance to form the image. Few of the classic cases that use the Thermal Paper include the Paper on Fax machines, ATM outlet receipts, hand held billing machines, Queue Coupon issuing machines in banks etc. The thermal printers cause the images to appear using internet transmitted images too. The classic example is the check in coupons issued in the Airports by hand held printers by the Airport staff. This printer works really well for standard text or black and white documents, and they generally print as fast as other printers. Thermal printers are more popular for printing the receipts because they are faster than most normal printers.