Dyed veneer fancy plywood Industry specific terminology or jargon
If the buyer does not understand these industry-specific terms or jargon, it is difficult to compare the price and quality level.
Carefully selected birch is a pleasure to colour. Our expertise is based on the control of colours during the dying process. In through dying we utilize environmentally friendly methods, which contains no harmful substances. We continuously develop our processes and technologies in order to achieve the best results.
Materials made from through-dyed veneer can be used in replacing endangered wood species from rainforests or developing countries, such as brown merbau or blackish wenge. Thanks to through-dying, wood can receive the tone the customer needs in an ecological way.
We want our customers to be able to enjoy products made from through-dyed veneer for as long as possible. Thanks to through-dying, the colour penetrates through the entire thickness of the material, and the surface can be renewed by sanding without loss of colour. Through-dyed veneer allows for a longer product lifetime, thereby putting less of a burden on the environment.
As it grows, wood binds carbon dioxide from the air. Products made from wood act as carbon storage as the carbon stays in the products throughout their lifecycle.
Mechanism of veneer dyeing for production of multilaminar veneer from plantation-grown Eucalyptus globulus
Large plantations of Eucalyptus globulus wood established in Australia have mainly been grown to produce pulpwood. This resource is not suitable for the production of decorative products, principally because of the low wood quality grades and unattractive colour. The manufacture of veneer-based products has recently been identified as an unprecedented opportunity to promote higher value utilization of plantation resources. However, many uncertainties remain regarding the impacts of the inferior wood quality of young plantation trees on product recovery and value, as well as the optimal processing techniques. Moreover, the quality of veneers and veneer-based products is far from optimal because these trees are young and have small diameters. The veneers also have substantial colour variation that affects the added value of the final products. Developing production methods that can enhance the appearance of low-quality veneers produced from young, small-diameter logs has great potential. An innovative method for enhancing the appearance of low-quality veneers has been developed by ALPI, a company in Italy that is involved in the production of multilaminar veneers, which are also called “reconstructed veneers”. One of the most important stages in multilaminar production is dyeing the veneer throughout its entire thickness, which can be achieved by using dyes of different colours depending on the appearance of the products, their design, and market demand. In the current multilaminar veneer manufacturing process, veneer dyeing is normally applied to give veneers a colour similar to that of another timber or to minimise variations and make the veneers more homogeneous in colour. Basically, veneer dyeing methods are based on the deep colouration of wood, which is known as wood dyeing, as opposed to surface colouration (varnishing and painting). The method used depends on the applications of the veneers. The benefit of dyeing is that the colour cannot be removed by sanding because the veneer is dyed throughout its entire thickness. Although veneer dyeing technology is well advanced in Italy, it has focused on poplar (Populus) veneers, using plantation wood that is characterised by a low density, even colour, small number of defects, and high permeability. Conversely, the majority of plantation eucalypts have a medium to high density, many defects, uneven colour, and low permeability. Therefore, a detailed study is required to investigate the veneer dyeing process for eucalypt veneers. The aim of this PhD study was to investigate the enhancement of veneer appearance through veneer dyeing technology for the production of high value veneer-based products from plantation grown Eucalyptus globulus. The specific objectives were to: • investigate the dyeing methods and types of dyes that would be the most suitable for dyeing Eucalyptus globulus veneers; • investigate the effect of dyeing parameters such as dye concentration, dyeing time and temperature on the dye uptake, dye penetration and colour difference of dyed veneer; • investigate Ultraviolet (UV) – driven discolouration of dyed wood veneers. The study investigated dyeing methods (soaking and vacuum-pressure), types of dye (direct dye and reactive dye), and dyeing parameters (dye concentration, dyeing time, and temperature) in the veneer dyeing process for Eucalyptus globulus grown on plantations in Australia. Two different reactive dyes were used: Procion H-EXL and Procion Brown P2RN. One direct dye was used, which was a mixture of Sirius Red F-4BL, Sirius Yellow K-GRL, and Sirius Grey K-CGL. Veneers with two different moisture content (MC) levels were used: green veneer (80% ± 5% MC) and dried veneer (12% MC). The study showed that the reactive dye at a concentration of 2% resulted in a significantly higher dye penetration than other dyes. Soaking was not recommended as the dyeing method for this species because the dyed samples were severely damaged by the pre-treatments and high temperatures. Therefore, an alternative method, the vacuum pressure method, was investigated. The results showed the vacuum-pressure method had a significant influence on the dye uptake, dye penetration, and colour change; in particular, a reactive dye penetration of 100% was achieved with a dyeing time of 120 minutes, pressure of 1000 kPa, and the addition of 20 g/L of sodium chloride. Attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy and scanning electron microscopy (SEM) analyses were conducted. The results indicated that the reactive dye was able to react with the wood compounds (cellulose, hemicellulose, and lignin), a large amount of the dye molecules diffused into wood lumens, and various dye molecules aggregated around the surface of wood fibres. A comparison of two dye uptake measurement methods (the liquid uptake-based method and the spectrophotometry method) has been conducted and analysed. The new technique for the measurement of dye penetration of the wood veneer using ImageJ program has been developed. UV-driven discolouration of veneers dyed at the optimal dyeing parameters was investigated. Results showed that there was no significant difference in the colour change of the tight and loose sides of sapwood and heartwood of the dyed green and dry veneer samples after 504 hours of UV light exposure.
Our dyed wood veneer products make it easy to create and enhance your final pieces.
At Sauers & Company Veneers, we believe you should have the option to make your project stand out and be able to enjoy the unique features that wood veneers have to offer. If you are looking for something different from the traditional stained wood effect, then our dyed wood veneers may offer the unique qualities you require. Dyed Wood Veneer
Color Consistency – One of the greatest advantages of dyed wood veneer is that it offers color consistency. We make sure each color is consistent and pressure cooked throughout each leaf during manufacturing.
Natural Beauty – Dyed wood veneer is also wonderful for drawing out the natural beauty of the wood grain. You’ll see all of the effortless lines and enhancements while also enjoying a pop of color.
Project Flexibility – Being able to achieve your goals for your project begins with having a great selection of wood veneers to choose from. Our dyed wood veneer products make it easy to create and enhance your final pieces.
We offer dyed wood veneer in more than twenty different color choices, as well as a variety of sizes and combinations to meet your needs. Some of our dyed wood veneer is even available in packs and assortments to ensure that you get the most for your project at a cost-effective price. Contact us at Sauers & Company Veneers today to learn more about our dyed wood veneer and our other high-quality wood veneer products. We look forward to working with you!
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