{"id":12601,"date":"2026-07-14T10:49:58","date_gmt":"2026-07-14T08:49:58","guid":{"rendered":"https:\/\/wood-kplus.at\/?p=12601"},"modified":"2026-07-14T10:53:36","modified_gmt":"2026-07-14T08:53:36","slug":"fundamentals-for-reliable-ink-jet-printed-codes-on-wood-for-tracing","status":"publish","type":"post","link":"https:\/\/wood-kplus.at\/en\/fundamentals-for-reliable-ink-jet-printed-codes-on-wood-for-tracing\/","title":{"rendered":"Fundamentals for reliable ink-jet printed codes on wood for tracing"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"12601\" class=\"elementor elementor-12601\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-782e52b2 e-flex e-con-boxed e-con e-parent\" data-id=\"782e52b2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d72d3c5 elementor-widget elementor-widget-post-info\" data-id=\"d72d3c5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"post-info.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"elementor-inline-items elementor-icon-list-items elementor-post-info\">\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-91cc4ef elementor-inline-item\" itemprop=\"datePublished\">\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-calendar\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M12 192h424c6.6 0 12 5.4 12 12v260c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V204c0-6.6 5.4-12 12-12zm436-44v-36c0-26.5-21.5-48-48-48h-48V12c0-6.6-5.4-12-12-12h-40c-6.6 0-12 5.4-12 12v52H160V12c0-6.6-5.4-12-12-12h-40c-6.6 0-12 5.4-12 12v52H48C21.5 64 0 85.5 0 112v36c0 6.6 5.4 12 12 12h424c6.6 0 12-5.4 12-12z\"><\/path><\/svg>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-date\">\n\t\t\t\t\t\t\t\t\t\t<time>7-14-2026<\/time>\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-41761e53 elementor-widget elementor-widget-text-editor\" data-id=\"41761e53\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>In the course of our ongoing research project trace-wood, we are looking into fundamental insights about labelling techniques for wood to ensure end-to-end tracing along its value chain. We are happy to present the first results, recently published in the journal of Wood Material Science and Engineering, which demonstrate the high potential and robustness of this labelling technique.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6165a16 elementor-widget elementor-widget-image\" data-id=\"6165a16\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"768\" height=\"725\" src=\"https:\/\/wood-kplus.at\/wp-content\/uploads\/2026\/07\/direct-marking-of-wood-with-an-ECC-200-2D-matrix-code-printed-I-768x725.webp\" class=\"attachment-medium_large size-medium_large wp-image-12599\" alt=\"direct marking of wood with an ECC 200 2D matrix code printed\" srcset=\"https:\/\/wood-kplus.at\/wp-content\/uploads\/2026\/07\/direct-marking-of-wood-with-an-ECC-200-2D-matrix-code-printed-I-768x725.webp 768w, https:\/\/wood-kplus.at\/wp-content\/uploads\/2026\/07\/direct-marking-of-wood-with-an-ECC-200-2D-matrix-code-printed-I-300x283.webp 300w, https:\/\/wood-kplus.at\/wp-content\/uploads\/2026\/07\/direct-marking-of-wood-with-an-ECC-200-2D-matrix-code-printed-I-1024x967.webp 1024w, https:\/\/wood-kplus.at\/wp-content\/uploads\/2026\/07\/direct-marking-of-wood-with-an-ECC-200-2D-matrix-code-printed-I.webp 1200w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Conceptual vision of the study: direct marking of wood with an ECC 200 2D matrix code printed onto a log disc using drop-on-demand (DOD) inkjet printing (\u00a9Photo by: Wood K plus)<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9df420e e-grid e-con-boxed e-con e-parent\" data-id=\"9df420e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c0414a4 elementor-widget elementor-widget-text-editor\" data-id=\"c0414a4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4><span style=\"color: #b37652;\"><strong>From labels to digital wood identity:<\/strong><\/span><\/h4><p>Reliable traceability is becoming a key requirement for sustainable wood value chains. New European regulations, including the EU Deforestation Regulation (EUDR), underline the need for transparent documentation of wood origin and product movement. The trace-wood project addresses this challenge by developing technologies for seamless, tamper-proof, and unambiguous identification of wood &#8211; from the tree to the final product. Within this project, the team Digital Technologies &amp; Sustainable Building at the research Area Wood Materials Technologies in Tulln is investigating printed, ink-based codes applied directly to uncoated wood surfaces. This approach could link digital information directly to the material itself, without additional labels or external tags.\u00a0<\/p><h4><span style=\"color: #b37652;\"><strong>First scientific milestone:<\/strong><\/span><\/h4><p>A first scientific milestone has now been reached: the publication \u201cEffects of Hardwood Properties and Surface Topography on the Morphology of Inkjet-Printed Dots\u201d has been accepted in the journal Wood Material Science &amp; Engineering. The study focuses on the smallest but essential unit of a printed matrix code: the inkjet-printed dot. In drop-on-demand digital printing, each code is built from many individual dots. Their size and shape are crucial for reliable code readability. So far, research and quality evaluation of printed two-dimensional codes have mainly focused on conventional substrates such as paper, labels, or industrial surfaces. Wood, however, is natural, porous, anisotropic, and highly variable. This study therefore systematically investigates printing quality directly on uncoated hardwood species.<\/p><h4><span style=\"color: #b37652;\"><strong>Basis for robust traceability:<\/strong><\/span><\/h4><p>The novelty of the work lies in linking inkjet dot morphology with uncoated solid wood properties and surface topography. Five hardwood species, different cutting methods, and two moisture levels were studied. The results show that wood anatomy strongly affects ink spreading: printed dots tended to elongate along the radial direction, indicating the influence of wood rays. Surface roughness also affected dot formation, while moisture mainly influenced ink accumulation in surface valleys. Diffuse-porous species such as alder, cherry, and maple produced smaller and more regular dots, while oak and walnut showed stronger spreading and more deformed dots. This means that printing parameters cannot be defined independently of the wood species. Instead, they must be adapted to the anatomical structure and surface condition of the material to ensure stable dot formation and reliable code readability. This accepted publication is the first achievement in an ongoing research path. Future publications will focus on the durability of printed codes, the applicability across the entire value chain and on the readability of codes under various realistic conditions.<\/p><h4><span style=\"color: #b37652;\"><strong>Further information:<\/strong><\/span><\/h4><p>Moradivandkolehjouei, S., Pinkl, S., Gindl-Altmutter, W., Riegler, M. (2026) Effects of Hardwood Properties and Surface Topography on the Morphology of Inkjet-Printed Dots. Wood Material Science and Engineering, <a href=\"https:\/\/doi.org\/10.1080\/17480272.2026.2680592\" rel=\"noopener\">https:\/\/doi.org\/10.1080\/17480272.2026.2680592<\/a><\/p><p><a href=\"http:\/\/www.trace-wood.at\" rel=\"noopener\">www.trace-wood.at<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-cd3e9c9 e-grid e-con-boxed e-con e-parent\" data-id=\"cd3e9c9\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-09a1233 elementor-widget elementor-widget-image\" data-id=\"09a1233\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"489\" height=\"489\" src=\"https:\/\/wood-kplus.at\/wp-content\/uploads\/2026\/07\/2D-and-3D-microscopic-imaging-for-quantitative-analysis-of-individual-inkjet-printed-dots-I.webp\" class=\"attachment-large size-large wp-image-12595\" alt=\"2D and 3D microscopic imaging for quantitative analysis of individual inkjet-printed dots I\" srcset=\"https:\/\/wood-kplus.at\/wp-content\/uploads\/2026\/07\/2D-and-3D-microscopic-imaging-for-quantitative-analysis-of-individual-inkjet-printed-dots-I.webp 489w, https:\/\/wood-kplus.at\/wp-content\/uploads\/2026\/07\/2D-and-3D-microscopic-imaging-for-quantitative-analysis-of-individual-inkjet-printed-dots-I-300x300.webp 300w, https:\/\/wood-kplus.at\/wp-content\/uploads\/2026\/07\/2D-and-3D-microscopic-imaging-for-quantitative-analysis-of-individual-inkjet-printed-dots-I-150x150.webp 150w\" sizes=\"(max-width: 489px) 100vw, 489px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">2D and 3D microscopic imaging for quantitative analysis of individual inkjet-printed dots (bottom) (\u00a9Photo by: Wood K plus)<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>In the course of our ongoing research project trace-wood, we are looking into fundamental insights about labelling techniques for wood to ensure end-to-end tracing along its value chain. 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