Decal art is very old and I think its origins date back to the XNUMXth century in England. Is decorative technique It was invented by a Frenchman who gave it the name decalquer, from which it derives its current name.
This decoration technique It originated with the main function of ceramics and was later used for other purposes, such as in the photography branch it is still used to print photographs and color images on various surfaces. This technique applied to the ceramic decor, is used, in addition to pre-industrial levels, even at home in the hobby.
Ceramic printing at an industrial level is carried out with an application of the cold figure on the surface, it is then fixed by heating in a furnace at very high temperatures. The objects are usually processed tiles, dishes, vases, porcelains and ceramics, in general, any object.
In terms of DIY work Quite cold is carried out, first of all by applying the decoration has been printed on paper, then that object must be completely submerged in water for about twenty minutes. On the surface it comes out easily and the desired representation will be etched on the surface.
After the execution, the work must be left to rest for at least two days and then it can not be obligatory, if you want to correct the figure, apply a layer of transparent varnish.
However, there are other types of adhesives that transfer through heat. For example, to transfer onto fabric, after placing the texture to be imparted by a hot iron, just make a last with a little more pressure and the image adheres perfectly, merging with the fabric of the fabric.
More information - Decorating glass dishes with decoupage
Source - pourfemme.it