Forming of consumer properties of alkid paint composition

Purpose. The purpose of the article is the commodity evaluation of new coloring compositions and paint coatings for wood based on alkyd resins. Methodology. The methods of fundamental and applied research were used. Analysis of paintwork materials on the Ukrainian market was carried out in accordance with the current standards. Materials of articles and Internet conferences were also used during the research. Results. The formation of paint coatings on hardwood on the basis of the coloring composition provides a wide range of its application with coating varnishes of different physical and chemical properties, ensures its versatility. Previous studies have established that the complex structure of wood causes the complexity of the deep penetration of dyes inside the wood. During the surface staining it is impossible to ensure deep penetration of the coloring composition, the maximum depth is 0.07-0.2 mm, which occurs due to the incommensurability of the size of the dye particles, cells and pores of wood. As a result of the application of a rationally designed composition, the drying time of the coating is reduced to 21 minutes, which differs significantly from other alkyd resin-based coatings, the drying time of which is 180 minutes. This occurs because of the low content of varnish in the painting composition. A rational depth of penetration of the coloring composition into the wood (4.10 microns) was established. This depth of penetration was achieved due to the physicochemical properties of the solvent and low content of varnish in the painting composition. Scientific novelty. The rational parameters of the coloring composition formulation based on alkyd resins for the formation of a paint and varnish coating on hardwood were determined; the new formulation provides improved performance indicators; the optimal technological parameters of applying the coloring composition and alkyd paint coatings on hardwood are determined. Practical value. The use of the developed alkyd coloring composition provides high-quality coatings on hardwood, excluding the intermediate grinding operation, combining priming and painting at a sufficiently low cost. The use of an alkyd coloring composition reduces the surface roughness of painted wood by filling the cut cavities of cells and vessels with a primer-coating layer, creating a microfilm on the surface of the wood substrate, covering all structural irregularities. This composition is evenly distributed on the wood substrate, providing a uniform color, while maintaining the texture of wood

painting composition; paint coating; varnish; white spirit; roughness; wood