The Effect of Water-Based Primer Pretreatment on the Performance of Water-Based Inkjet Coatings on Wood Surfaces

Abstract

Wood surface staining suffers from volatile organic gas (VOC) emissions and uneven staining at knots, and these environmental and decorative performance issues are the main restrictions in the application of wood products, indoors and outdoors. Herein, the method of wood-based panel surface staining is presented for improving environmental and decorative performance using environmentally friendly water-based inks, water-based primers, and digital inkjet coloring technology. The wood-based panels’ dye coatings were prepared with oak plank as the sample substrate, a one-component water-based primer as the interfacial adhesive, and a water-based ink as a coating agent. The application amount of water-based primer was 15 g per square meter, applied twice by a roller, and the coating thickness reached approximately 20 μm. The influence of the one-component water-based primer on the interfacial properties of water-based inkjet coatings was investigated via Fourier-transform infrared (FTIR) spectroscopy, a video contact angle analyzer, and environmental scanning electron microscopy (SEM). The results showed that the one-component water-based primer connected the plain board to the inkjet-printed coating. The addition of a water-based primer coating reduced the contact angle of the wood surface from 41.69° to 37.28° and increased wettability. This helped enhance the adhesion of the water-based inkjet coating, and the primer treatment in the semi-closed state covered the scar defects of the plain board while preserving the path of grain holes on the wood surface. With image editing and inkjet dyeing, the surface of the oak plank obtained a uniform staining effect on the primer coating while maintaining the original natural pore texture of the wood. This study proves that a one-component water-based primer pretreatment process for water-based inkjet printing coatings on wood surfaces has excellent modification ability and interface adhesion. It provides a feasible method of color modification for artificial panel surfaces.

The State of the Art of Biomechanics Applied in Ergonomic Furniture Design

“…The first is functional design, which involves determining the intended function of furniture and identifying the primary benefits it is expected to provide (Figure 1) [1]. Aesthetic design, on the other hand, focuses on the artistic aspects of furniture design, encompassing features such as form, texture, color, and shape, while taking into consideration the influence of relevant cultures or fashion trends, as well as the demands of consumers [2][3][4][5]. Engineering design, which is the last key element of design, is the process of determining the most appropriate ergonomic criteria, materials, construction techniques, and manufacturing technologies [6][7][8][9][10][11][12].…”

Effect of TiO2@CaCO3 Waterborne Primer on the Coloring Performance of Inkjet-Printed Wood Product Coatings

“…In addition, the UV inkjet technology [17] requires a white background substrate to match the conventional colors, and there is an adhesion issue with conventional top coating used as a base for direct inkjet printing [18]. Therefore, the primer-treated substrate can improve the mechanical properties and printing quality of the paint film [19]. However, research on water-based primer [20,21] printing systems for wood applications is still limited, and research on the coloring performance of wood product coatings needs to be addressed.…”

“…CaCO 3 is characterized by low cost, abundant reserves, high stability, and permeability, making it suitable for industrial use that requires mass production [22][23][24][25]. In addition, field research found that oak planks [19] are commonly used in the floor production line of solid wood materials. Their texture is firm, and they have beautiful grain, but part of the surface of the oak boards has scars, scratches, stains, and other defect phenomena.…”