Different dopants with certain concentrations could be added into the films by printing with different dopant inks and printing frequency. Highest resistance and sensitivity to acetone vapor were obtained when the film was prepared by printing only once on it. It was found that the morphology and electrical properties of the films changed significantly with the thickness of the films, which can be adjusted simply by printing on the film with increasing frequency. After the drying and heating treatment processes, continuous ZnO films were formed and studied by scanning electron microscopy, X-ray diffraction and by a home-made gas sensitivity measuring system. ZnO inks with appropriate viscosity and surface tension were prepared by sol-gel techniques, and printed onto substrates using a commercial printer. The preparation of ZnO based gas-sensing thin films by ink-jet printing methodĪn ink-jet printing technique was applied to prepare ZnO based gas-sensing thin films. Results showed that increasing number of layers, as well as the right choice of substrates, can improve the behaviour of printed product during exploitation. Based on spectrophotometricaly obtained data, colour differences ΔE2000 were calculated. Spectrophotometric measurements were conducted before and after the light treatment. Samples were exposed to light after the printing process. A test card consisting of fields of CMYK colours was created and printed, varying the number of ink layers applied. As printing substrates, two different types of materials were used (ORACAL 640 - Print Vinyl and LG Hausys LP2712. Samples used in this research were printed by digital ink jet printing technique using Mimaki JV22 printing machine and J-Eco Subly Nano inks. Print Quality of Ink Jet Printed PVC Foilsĭirectory of Open Access Journals (Sweden)įull Text Available Digital printing technique is used for a wide variety of substrates, one of which are PVC foils. Choosing as a chromatic standard the Canon inks and for the physicochemical properties the edible inks from Thailand, it was prepared a yellow edible printing ink which was characterized by same methods The main considered methods were the spectrocolourymetrical, rheological, electrochemical. The analysed inks were the Canon inks and edible inks from Thailand. The paper presents the results obtained by using different physical methods for analysis of some jet printing inks types. An important component of this technology is the ink. The automatic reproduction of images with edible materials is a new method used lately to decorate cakes. Preliminary researches regarding edible jet printing inks the range of color tonality, colorimetric stability and print quality, can be used by the ink and paper manufacturers in new formulations, offer data for the printer producers for further production and evaluation of the position of their products. The results of these researches, except the scientific contribution in the domain of understanding and explaining the environmental conditions on the gamut size, i.e. The dye-based inks and the pigmented inks based on water and the low solvent inks were used. The prints obtained by piezoelectric and thermal ink jet technologies were used in the researches. The aim of this paper is the result presentation of some optical properties research for ink jet prints after: exposing the prints to the mixed daylight and artificial light, exposing of prints to the sun-light through the glass window, and exposing of prints to outdoor conditions during the summer months. International Nuclear Information System (INIS)ĭobric, E Mirkovic, I Bolanca Bolanca, Z
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