Circular economy and recycling of postconsumer textile waste is gaining momentum. Its major obstacle is lowquality recycled products. This review article analyses commercial postconsumer textile materials, their recycling and applications. Modernization of fibre processing and recycling technology has assumed an indispensable role in the quality enhancement of post consumer products. A futuristic overview of fabric materials, their processing, recycling and applications is presented by the example of commercial polymers. Different types of recycling -primary, secondary, tertiary, quaternary, and biological -used with ultramodern compatibilization and crosslinking are explored. Additionally, the conventional and proposed "JustinTime" (JIT) remanufacturing and recycling technologies for enhancing circular economy are demonstrated.

Nowadays physical vapour deposited (PVD) coatings are widely used in a variety of different applications to reduce the wear of tools. Thin hard coatings have good wear resistance only when they have good adhesion and certain surface roughness. Thus, dry micro-abrasive blasting method with SiC abrasive was implemented as a pre-treatment process on WC-Co substrates. Post-treatment was conducted by using drag grinding method. The effect of surface preand post-treatment on the adhesion and tribological properties of TiN hard coatings have been investigated. TiN hard coatings were deposited by means of lateral rotating cathode arc method with the thickness of 2.3 |im. The surface roughness was measured by means of Mahr Perthometer and the standard Rockwell adhesion test was implemented to evaluate the adhesion of PVD TiN coatings. Tribological properties were determined by ball-on-disk method. The experimental part was focused on the effect of microblasting on the tribological properties of the coating. The relation between post-treatment of the coating and friction coefficient is indicated.

R&D activities in the field of surface engineering are conducted in three areas: thermal sprayed (TS), plasma transferred arc (PTA) welded and physical vapour deposited (PVD) wear resistant coatings. In the field of TS coatings, the study is aimed at the production of composite coatings based on recycled hardmetal powders and commercial Fe-based self-fluxing alloy powders, in PTA welding-at the production of thick metal-matrix composite hardfacings, based on Fe-and Ni-based commercial spray powders and hardmetal/cermet reinforcements. Potential areas of application of coatings are the following cost-sensitive areas like mining, energy production, road building, agriculture, etc. Thin hard PVD coatings (mono-, multilayer and composite coatings of TiN, TiAIN, AlTiN; nanocoating nACo, etc.) and different coating systems (hardmetal + coatings, high speed steel + coatings, nitrided steel + coatings) were studied. To extend the application areas of thin hard coatings, the duplex coatings and duplex treatments (self-lubricated films on PVD coatings, laser hardening of PVD coated surfaces) were investigated. As a result of the studies, the principles for coatings selection under different operation conditions are formulated.

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The contribution deals with analysis of the influence of the substrate surface laser ablation before deposition process to improve the adhesion of coating-substrate system. The coatings were applied to the high-speed steel 6-5-2-5 (STN 19 852) and WC-Co cemented carbide with cobalt content of 10 wt%. LAteral Rotating Cathodes (LARC®) process was chosen for evaporation of individual CrN layers. Influence of laser ablation on the substrate morphology, structure, roughness, presence of residual stresses inside the substrates and layers and their adhesion behavior between the layers and the base material was studied. Scanning electron microscopy fitted with energy dispersive spectroscopy was utilized to investigate morphology and fracture areas of substrates with CrN layers. X-ray diffraction analysis was employed to detect the residual stresses measurements. Adhesion between the coatings and substrate was analyzed using “Mercedes” testing.