Thanks to digital imaging and printing technologies of heat transfer, anyone can now own a t-shirt, coffee cup, or hat, that all he wants to say. Screen printing and offset lithography, print the main alternatives for heat transfer, are laborious processes, messy with ink and odorous chemicals. However, making prints a heat transfer is relatively clean and fast, accessible to anyone with a computer and a printer, and only leave behind as waste paper.
There are two ways to print a heat transfer. Both require inks, a source of heat, and a receptive surface, or substrate, but they differ in their details. One is a topical transfer, which places the ink on top of the fabric. The other, called sublimation printing allows the ink from the tissue by means of a chemical reaction.
An iron-on applied on a t-shirt printing is a topical heat transfer at its simplest. The iron-on is a digital image on special transfer paper, which is coated with a clear film. The on the back of the transfer paper iron softens the clear film so that, along with the image, stick to the shirt. In commercial settings, a machine called a heat press is used in place of iron. A heat transfer exerts pressure higher heat and a larger, more evenly distributed pressure. The press may be either a plate, which consists of a flat bed with a hinged lid, or a pressure roller. The use of either creates a tighter bond between the tissue and film than an iron does. However, the ink that will link the image to the fibers of the fabric together only on the surface, and a few flaking and loss of ink over time.
Sublimation printing inks, in particular, which, when exposed to pressure and heat, a part of the tissue - the inks in place on the tissue. Sublimation The word comes from the Latin meaning beyond suggesting the threshold that goes beyond the physical or tangible. Sublimation is a chemical reaction in which a substance transforms from a solid to a gas, skipping the liquid state. In a heat transfer printing produced with the sublimation inks, the substrate and the transfer paper through a press. Under intense heat of about 400 degrees Fahrenheit, and sublimate the inks, such as gas, penetrate the substrate.
Not all work surfaces with sublimation. Because the inks used to print this way, a heat-transfer largely insoluble in water, they form bonds with uniform water-insoluble materials, such as polyester and other plastics. Objects not made of synthetic materials, such as ceramic mugs, however, can receive images transferred by sublimation as they are for the first time coated with a polymer film. This kind of thing, however, require specially designed presses and, in general, can not be achieved with existing tools at home.