The recognition of the spectra of expendable materials for traditional convection offset printing is shown. The theoretical analysis (calculation) of thermodynamic compatibility and assessment of dynamics of interaction of various liquids with polymer that is part of offset blanket is carried out.
In this paper, we will discuss a method used to reduce friction and ink set-off in web-fed machines through implementing an air cushion between the web and the air bar used to influence the web trajectory. In the available academic literature, there is no study of the friction force between said two surfaces. Our goal is to establish a correlation between air tension, tensile and the web’s width. A specially designed experimental air bar was created; in a series of experiments, air was fed into the gap between the bar and the wrapping web. The results (friction force’s dependence on air tension, tensile and web’s width) are to be taken into account while designing web conductors for web-fed printing machines.
We have investigated flexible composite materials of test objects (mires) intended for setting the aviation optical equipment for remote sensing of the Earth. The brightness fields and control images of the mire contrasting elements are obtained by the method of ink-jet printing on banner fabric. We have proposed a new layered structure of the material for the operating contrast control. We have established quantitative patterns of changes in the optical characteristics of test objects when using an outer layer made of a transparent polymer film, which makes it possible to vary the characteristics of test objects for adjusting thermal imaging devices and aviation optical equipment using low-cost polygraphic methods.
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