Mária Šmidriaková

Technical University of Zvolen · Department of Furniture and Wood Products

This paper deals with the influence of dark and light exposure on the colour change of a transparent two-component polyurethane surface finish. The surface finish with polyacrylic and aldehyde resin was applied to the surfaces of untreated and hydrothermally treated European beech, alder, Norway maple, and Paper birch wood. The test specimens were...

The colour difference of transparent surface finish on hydrothermally treated beech wood in the interior. The paper deals with the influence of ageing of transparent surface finish in the dark and in the light in interior conditions. The colour difference of the tested samples with surface finishes (∆E*ab) was measured after the ageing of native wo...

The paper deals with the effect of the coating film thickness of various types of coating material on the quality of surface finish on lightweight plywood. Three surface finishes (solvent-based, water-based and hard wax) were formed of coating materials on the lightweight plywood sheathed with pressed beech veneer. The coating materials were applie...

Colour stability of surface finishes on thermally modified beech wood. The paper deals with the influence of the type of transparent surface finish on the change of colour of the surfaces of native beech wood and thermally modified wood. At the same time, the colour stability of three surface finishes on the surfaces of native and thermally modifie...

In this study, natural linseed oil, hard wax oil, and hard wax, commonly used as finishes for wooden furniture and parquet, were used for surface finishes on Turkey oak wood (Quercus cerris L.), thermally modified at temperatures of 175 °C and 195 °C for 4 h. Several resistance surface properties were investigated. The mechanical resistance propert...

Quality of Surface Finish on Furniture Doors of MDF Board. The paper deals with the assessment of the quality of furniture door surface. The properties were tested on the following types of the surface finish on MDF doors: PVC foil (glossy and matt), acrylic foil, and PUR pigmented coating material. The following physical and mechanical properties...

The effect of mechanical treatment of beech wood surface on quality of surface finish. The paper deals with the quality of three surface finishes intended into interior. Three types of coating materials were tested (polyurethane, waterborne, wax). Each type of the surface finish was created on beech wood surface in three various coating thicknesses...

Quality of surface finishes for beech stairs. The article deals with quality of oil varnish surface finish when compared with a standard polyurethane finish. The manufacturer recommends both surface finishes to be used for stairs. The tested surface finishes were created on beech wood according to producer recommendations. The quality comparison wa...

The surface quality of silicone resin coating on the veneer surface was evaluated. Silicone resins of various types (weakly, moderately, strongly hydrophobic, and hydrophilic resins) were applied on veneer and cured. The quality of the coatings was assessed according to the impact resistance of the surface and the resistance to cold liquids (acetic...

The quality of pigmented surface finish intended into interior is presented in the paper. The pigmented surface finish was formed as a system of the basic polyester coating material and the top polyurethane coating material. Two types of top coating materials were tested (gloss and matte). Each type of the surface finish was created in two various...

Lowering of formaldehyde emission from wood-based panels by modification of polycondensation adhesives with natural fillers, additives and activators. Modification of polycondensation resin were directed to urea-formaldehyde (UF) adhesives with the application in woodworking industry. Fibril proteins of skin mainly collagen and keratin, polymer pol...

Lowering of formaldehyde emission from wood based panels by modification of polycondensation adhesives with natural fillers, additives and activators. Modification of polycondensation resins were directed to urea-formaldehyde adhesives with the application in woodworking industry. Fibril proteins of skin, mainly collagen and keratin, polymer polyph...

The article deals with the roughness of transparent finishes on the surface of aspen poplar wood. The influences of the type of transparent finish and the thickness of the coating, and also the method of machining of the surface on the roughness of surface of aspen poplar wood were monitored. Aspen poplar wood was machined by one of five different...

The article deals with the hardness of transparent coatings and the impact resistance of the coatings on aspen poplar wood. Transparent finishes, the thickness of coating, and the method of machining of aspen poplar wood were monitored. Aspen poplar samples were machined by one of five different ways of surface machining (milling, sanding, and thre...

The forest based sector, even at the stage of logging, loses approximately 15 % of wood raw material in the form of branches, bark, tree tips, etc. The general utilisation of waste branches is combustion, production of biofuel or building skidding roads. The paper describes a method of using of one type of cutting waste-tree branches-as a decorativ...

Quality of finish on bonded layered material made from beech veneer and foamed PVC. The article deals with quality of finish on bonded layered material made from beech veneer and foamed PVC. The finish was formed of water-based coating materials. Physical and mechanical properties were evaluated according to the standards STN 67 3082/a Testing of i...

The paper deals with the evaluation of 3D formability of veneers modified by moistening and steaming. Formability of three wood species (Fagus sylvatica L., Betula pendula Roth. and Fraxinus excelsior L.) was compared. To determine the 3D formability, the method based on the principle of forming by air pressure was used. 3D formability was evaluate...

The present article discusses the aesthetic property of transparent coating on beech wood surface. Influence of type of transparent coating, the number of coats, and method for wood surface machining on the gloss of coating on beech wood are monitored. Before finishing, the beech specimens were machined by one of ten different combinations of sandi...

Adhesion of foils to MDF board. The article deals with adhesion of foils to MDF board. Foiled furniture parts made from MDF board are one of the alternatives of coating. The aim of our work was to study the effect of adhesive spread on adhesion of two types of foils (PVC and PET). Two-component polyurethane adhesive was used. The adhesive spread wa...

The article deals with the proposition of wood composite material coated with slices made of natural wood. The aim was to investigate the possibility of production of decorative and formaldehyde low-emission particleboard covered with slices of pine wood branches (Pinus Sylvestris L.). The paper describes the technology of slices preparation to cre...

Different thermoplastic and thermosetting adhesives have been used for production of engineered wood products. Polyvinyl acetate (PVAC) adhesives have good bending properties and water resistance. Due to health hazards of formaldehyde emissions from formaldehyde based adhesives, there is growing interest in the application of PVAC-based composites...

Influence of wood surface processing on roughness and wetting. The paper gives the evaluation of the influence of various ways of technological processing of aspen wood surface on the roughness, and consequently on wetting of the wood surface with a liquid. The wood surface was processed by three various technologies: milling, sanding, and pressing...

Influence of modification of veneers on 3D – forming. The paper gives the evaluation of influence of modification of beech veneers on 3D – forming. We researched the influence of type of veneer and type of modifying substance on maximal deformation at bending. The tests were done in beech veneers-tangential and radial veneers. Veneers were modified...

Bending strength of layered material based on wood and foamed PVC. The paper deals with measurement of the strength and modulus of elasticity at bending of 3–layer material according to STN EN 310. The layered material consists from two beech veneers oriented in parallel in the surface layers, and one core layer of foamed PVC. The layers are glued...

Influence of resin coating on strength and tensile deformation of beech veneer. The paper deals with evaluation of tensile strength and tensile deformation of beech veneers, which were untreated or treated by coating with a hydrophilic silicone resin on one side or both sides of the veneer. We researched the influence of modification (one sided or...

(NH2)2/CH2 resin adhesive (UF) was modified by addn. of a collagen hydrolyzate (Cr-tanned leather waste) and used for making plywood. The addn. of collagen resulted in an increase in the adhesive viscosity and a decrease in CH2O content and emission from the plywood as well as in a decrease in shearing strength of the plywood.

Heat resistance is one of most important properties of glued joints. The significance of this work consists in pointing out the fact that adhesive joints may be at conditions of increased temperature the weak points of the wood glued structure. The aim of this work is determination of relationship of the strength of glued joints at increased temper...

This research was aimed at determining the possible usefulness (ecologic, efficiency, and economic) of collagen material, after de-chroming, to modify polycondensation adhesives for application in the woodworking industry. The de-chroming technology of leather chromium waste was proposed in our previous work.(1) In this work, condensation adhesives...

This research was aimed at determining the possible usefulness (ecologic, efficiency, and economic) of collagen material, after de-chroming, to modify polycondensation adhesives for application in the woodworking industry. The de-chroming technology of leather chromium waste was proposed in our previous work.1 In this work, condensation adhesives b...

Wood moisture content from 8 % to 12 % is recommended for the process of gluing of wood. Only a few kinds of adhesives are able to join wood at higher levels of wood moisture content. The aim of this work was to develop the adhesive mixtures suitable for gluing of wood at higher moisture content. We tested biopolymers (waste polymers or lower value...

Gluing belongs to the very important technological operations in woodworking industry. The aim of this work was preparation of hardener based on biopolymers (waste animal polymers) for melaminformaldehyde (MEF) adhesives suitable for gluing of plywood. Glued joints were expected to be classified as resistant to water in the class 3. In the experime...