FIELD: physics, computer engineering.
SUBSTANCE: invention relates to a method of forming an image on a substrate, including on a thin flexible substrate, which can be used in making printed-circuit boards, electronic displays and printed sensors. The method includes the following steps: first depositing onto a substrate a colour-forming polyin which can be activated by heating and is nonreactive; activating the polyin in three areas of the substrate where the image is to be formed; after activation, the polyin becomes reactive; converting the activated polyin to its coloured form to obtain an image; the polyin is an amide which is formed by a primary amine and diacetylene mono- or dicarboxylic acid.
EFFECT: invention enables to obtain any colour images on substrates and make durable devices with printed electronic circuits which may be exposed to the environment without changes in conductivity.
15 cl, 15 ex
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