{"id":47193,"date":"2025-10-03T11:13:20","date_gmt":"2025-10-03T11:13:20","guid":{"rendered":"https:\/\/www.linxglobal.com\/?post_type=blog&#038;p=47193"},"modified":"2025-10-03T11:18:27","modified_gmt":"2025-10-03T11:18:27","slug":"ensuring-reliable-traceability-coding-in-a-changing-world-of-plastic-types","status":"publish","type":"blog","link":"https:\/\/www.linxglobal.com\/en-gb\/blog\/ensuring-reliable-traceability-coding-in-a-changing-world-of-plastic-types\/","title":{"rendered":"Ensuring Reliable Traceability Coding in a Changing World of Plastic Packaging"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-navi-blue-color has-text-color has-link-color wp-elements-769c1ad4dc09e1dc0de3c4461c10fdcf\" id=\"h-why-traceability-on-plastic-coding-matters\">Why Traceability on Plastic Coding Matters<\/h2>\n\n\n\n<p>As global pressure mounts to reduce <strong>plastic waste<\/strong> and transition to more sustainable packaging, manufacturers are being asked to do more with less. Consumers demand recyclable, lightweight, and eco-friendly <a href=\"https:\/\/www.linxglobal.com\/en-gb\/coding-solutions\/applications\/plastic-marking-machines\/\"><strong>plastic packaging<\/strong><\/a> \u2014 yet businesses must still ensure <strong>clear, durable, and compliant traceability codes<\/strong> on every pack.<\/p>\n\n\n\n<p>Recent studies, such as <em>The Big Plastic Count<\/em>, highlight the challenge: billions of single-use plastics including snack wrappers and produce packaging \u2014 remain unrecycled each year. These material shifts, combined with tightening regulations, make <strong>reliable coding and marking solutions<\/strong> essential to maintaining supply chain integrity, product safety, and consumer trust.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-navi-blue-color has-text-color has-link-color wp-elements-6837420f631d3f8dff53aa961aafe97d\" id=\"h-how-plastic-packaging-is-evolving-and-what-it-means-for-coding\">How Plastic Packaging is Evolving \u2014 and What It Means for Coding<\/h2>\n\n\n\n<p>Over the past decade, plastic packaging has undergone a transformation. Some of the key trends include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-small-font-size\"><strong>Shift to lighter films and mono-materials<\/strong> for recyclability.<\/li>\n\n\n\n<li class=\"has-small-font-size\"><strong>Increased use of laminates and flexible films<\/strong>, often harder to code.<\/li>\n\n\n\n<li class=\"has-small-font-size\"><strong>Regulatory requirements<\/strong> demanding higher traceability and legibility.<\/li>\n\n\n\n<li class=\"has-small-font-size\"><strong>Elimination of certain additives<\/strong> that once improved ink adhesion.<\/li>\n<\/ul>\n\n\n\n<p>While these changes support sustainability goals, they introduce new challenges for <strong>coding equipment, inks, and substrates<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.linxglobal.com\/wp-content\/uploads\/2024\/09\/plastic-packaging-image-layers.jpg\" alt=\"How Plastic Packaging is Evolving\" title=\"How Plastic Packaging is Evolving\"\/><\/figure>\n\n\n\n<p>With the current worldwide focus on sustainability and reducing plastic waste, many manufacturers are moving towards flexible laminated films of PE (such as LDPE (Low Density PE) and HDPE (High Density PE), PP, and OPP (oriented polypropylene) to reduce the amount of plastic used. These films are typically used as <a href=\"https:\/\/www.linxglobal.com\/en-gb\/coding-solutions\/applications\/plastic-film\/\">flow wrap films<\/a> and <a href=\"https:\/\/www.linxglobal.com\/en-gb\/coding-solutions\/applications\/pouches\/\">pouches<\/a> for dry and fresh foods and household products.<\/p>\n\n\n\n<p>Mono-plastic <a href=\"https:\/\/www.linxglobal.com\/en-gb\/coding-solutions\/applications\/packaging\/\">packaging<\/a>, made from a single type of plastic, such as polyethylene, is also growing due to its recyclability.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-navi-blue-color has-text-color has-link-color wp-elements-359ef6e65ca125fa57ca986e542832e1\" id=\"h-the-challenge-ink-adhesion-and-traceability-coding-on-plastics\">The Challenge: Ink Adhesion and Traceability Coding on Plastics<\/h2>\n\n\n\n<p>Not all plastics are created equal when it comes to printing. The science of <strong>surface energy<\/strong> plays a key role:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-small-font-size\"><strong>PET (polyethylene terephthalate):<\/strong> relatively high surface energy due to oxidised groups (C=O, \u2013OH). Inks wet and adhere more easily, making it simpler to mark.<\/li>\n\n\n\n<li class=\"has-small-font-size\"><strong>PE (polyethylene) &amp; PP (polypropylene):<\/strong> dominated by hydrophobic hydrocarbon chains. Their <strong>low surface energy<\/strong> makes it harder for inks to bond.<\/li>\n<\/ul>\n\n\n\n<p>The result? On materials like PE and PP, <strong>codes may smudge, scratch off, or fade<\/strong> during handling. This is particularly problematic on <strong>laminated films<\/strong> or <strong>flexible mono-layer plastics<\/strong>, where ink adhesion is often poor.<\/p>\n\n\n\n<p>Without the right inks and printers, manufacturers risk:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-small-font-size\"><strong>Illegible <a href=\"https:\/\/www.linxglobal.com\/en-gb\/coding-solutions\/coding-types\/batch-coding\/\">batch codes<\/a> or expiry dates<\/strong><\/li>\n\n\n\n<li class=\"has-small-font-size\"><strong>Compliance issues<\/strong> with traceability requirements<\/li>\n\n\n\n<li class=\"has-small-font-size\"><strong>Customer complaints and recalls<\/strong><\/li>\n\n\n\n<li class=\"has-small-font-size\"><strong>Wasted product<\/strong> due to unreadable codes<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading has-navi-blue-color has-text-color has-link-color wp-elements-923e0afdb294806b2eee44fca9ffa7f9\" id=\"h-how-to-ensure-reliable-traceability-coding-on-plastics\">How to Ensure Reliable Traceability Coding on Plastics<\/h2>\n\n\n\n<p>To overcome these challenges, manufacturers should consider several best practices:<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-medium-font-size\">1. Choose inks designed for low-surface-energy plastics<\/h3>\n\n\n\n<p>Specialist inks are formulated to bond with PE, PP, and laminated substrates. Look for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-small-font-size\"><strong>Fast-drying, abrasion-resistant properties<\/strong><\/li>\n\n\n\n<li class=\"has-small-font-size\"><strong>Strong adhesion on non-porous surfaces<\/strong><\/li>\n\n\n\n<li class=\"has-small-font-size\"><strong>Durability under humidity, heat, and transport conditions<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-medium-font-size\">2. Conduct real-world trials on your packaging<\/h3>\n\n\n\n<p>Coding results can vary by plastic grade, treatment, and environmental conditions. Always test inks and printers directly on your packaging lines before rollout.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-medium-font-size\">3. Ensure regulatory compliance<\/h3>\n\n\n\n<p>Modern inks must meet strict standards, such as:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-small-font-size\"><strong>PFAS-free and CMR-free<\/strong> formulations<\/li>\n\n\n\n<li class=\"has-small-font-size\">Alignment with <strong>EuPIA exclusion policies<\/strong><\/li>\n\n\n\n<li class=\"has-small-font-size\">Compliance with <strong>regional food safety and packaging regulations<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-medium-font-size\">4. Select printers proven for plastic substrates<\/h3>\n\n\n\n<p>Continuous Inkjet (CIJ) printers remain the most versatile option for high-speed plastic packaging lines. Features to prioritise:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-small-font-size\"><strong>Consistent drop placement<\/strong> for sharp, legible codes<\/li>\n\n\n\n<li class=\"has-small-font-size\"><strong>Automated cleaning systems<\/strong> to minimise downtime<\/li>\n\n\n\n<li class=\"has-small-font-size\"><strong>Flexibility<\/strong> to switch between different plastics and packaging formats<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-medium-font-size\">5. Partner with an experienced supplier<\/h3>\n\n\n\n<p>Expert support ensures you get tailored recommendations, ongoing maintenance, and access to the latest ink innovations.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.linxglobal.com\/en-gb\/sample-printing\/\">Request Print Sample<\/a><\/div>\n<\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.linxglobal.com\/wp-content\/uploads\/2024\/09\/surface-energy-image.jpg\" alt=\"Coding on Plastic Packaging\" title=\"Coding on Plastic Packaging\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-navi-blue-color has-text-color has-link-color wp-elements-7f404180110427e5484cdfd542b6777f\" id=\"h-key-checklist-for-choosing-a-coding-solution\">Key Checklist for Choosing a Coding Solution<\/h2>\n\n\n\n<p>When evaluating traceability coding solutions for plastic packaging, consider the following checklist:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-small-font-size\">Adhesion on your specific substrates (PE, PP, PET, laminates, films)<\/li>\n\n\n\n<li class=\"has-small-font-size\">Dry time and resistance to smudging or abrasion<\/li>\n\n\n\n<li class=\"has-small-font-size\">Compliance with regulatory and sustainability standards<\/li>\n\n\n\n<li class=\"has-small-font-size\">Trial validation in real production environments<\/li>\n\n\n\n<li class=\"has-small-font-size\">Printer uptime, ease of maintenance, and cleaning intervals<\/li>\n\n\n\n<li class=\"has-small-font-size\">Availability of inks and support in your local market<\/li>\n\n\n\n<li class=\"has-small-font-size\">Durability of codes across logistics, storage, and consumer use<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading has-navi-blue-color has-text-color has-link-color wp-elements-afdba70d54aac4520f2594cc5af3d401\" id=\"h-the-future-of-traceability-coding-on-plastics\">The Future of Traceability Coding on Plastics<\/h2>\n\n\n\n<p>As sustainability regulations tighten, we can expect further innovations in packaging \u2014 from bio-based plastics to advanced mono-layer films. Coding solutions must evolve in parallel, offering:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-small-font-size\"><strong>More environmentally responsible inks<\/strong><\/li>\n\n\n\n<li class=\"has-small-font-size\"><strong>Improved adhesion technologies<\/strong><\/li>\n\n\n\n<li class=\"has-small-font-size\"><strong>Smart integration with traceability systems<\/strong> (IoT, blockchain, supply chain analytics)<\/li>\n<\/ul>\n\n\n\n<p>Manufacturers that invest now in future-proof coding systems will be best positioned to meet tomorrow\u2019s challenges. <strong>Contact Linx today to arrange sample trials on your plastic packaging and discover the coding solution best suited to your production line.<\/strong><\/p>\n\n\n\n<p class=\"has-navi-blue-color has-text-color has-link-color has-medium-font-size wp-elements-50b43e6926452a9196b9ca233201ef0a\"><strong>Data references:<\/strong><\/p>\n\n\n\n<p><a href=\"https:\/\/thebigplasticcount.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">Home | The Big Plastic Count<\/a><br><a href=\"https:\/\/www.greenpeace.org\/static\/planet4-international-stateless\/2024\/04\/eaa6997d-survey-results-global-plastics-treaty.pdf?_gl=1*1j3p7bn*_up*MQ..*_ga*MTAyODI0MzIzNS4xNzE1OTM1NzQ1*_ga_94MRTN8HG4*MTcxNTkzNTc0NS4xLjAuMTcxNTkzNTc0NS4wLjAuMjEyMzc3MjA1*_ga_99CSX66YC1*MTcxNTkzNTc0NS4xLjAuMTcxNTkzNTc0NS4wLjAuMA..*_ga_0CCB1GTVV6*MTcxNTkzNTc0NS4xLjAuMTcxNTkzNTc0NS4wLjAuMA..\" target=\"_blank\" rel=\"noreferrer noopener\">eaa6997d-survey-results-global-plastics-treaty.pdf (greenpeace.org)<\/a><br><a href=\"https:\/\/www.greenpeace.org\/static\/planet4-international-stateless\/2024\/04\/b9f6a209-survey-results-global-plastics-treaty-executive-summary.pdf?_gl=1*1j3p7bn*_up*MQ..*_ga*MTAyODI0MzIzNS4xNzE1OTM1NzQ1*_ga_94MRTN8HG4*MTcxNTkzNTc0NS4xLjAuMTcxNTkzNTc0NS4wLjAuMjEyMzc3MjA1*_ga_99CSX66YC1*MTcxNTkzNTc0NS4xLjAuMTcxNTkzNTc0NS4wLjAuMA..*_ga_0CCB1GTVV6*MTcxNTkzNTc0NS4xLjAuMTcxNTkzNTc0NS4wLjAuMA..\" target=\"_blank\" rel=\"noreferrer noopener\">b9f6a209-survey-results-global-plastics-treaty-executive-summary.pdf (greenpeace.org)<\/a><br><br><a href=\"https:\/\/www.greenpeace.org.uk\/news\/the-uks-largest-plastic-waste-survey-reveals-1-7-billion-pieces-of-plastic-packaging-still-being-thrown-away-by-households-weekly\/\" target=\"_blank\" rel=\"noreferrer noopener\">The UK\u2019s Largest Plastic Waste Survey Reveals 1.7 Billion Pieces of Plastic Packaging Still Being Thrown Away by Households Weekly | Greenpeace UK<\/a><br><br><a href=\"https:\/\/www.europarl.europa.eu\/news\/en\/press-room\/20240419IPR20589\/new-eu-rules-to-reduce-reuse-and-recycle-packaging\" target=\"_blank\" rel=\"noreferrer noopener\">New EU rules to reduce, reuse and recycle packaging | News | European Parliament (europa.eu)<\/a><br><a href=\"https:\/\/ec.europa.eu\/eurostat\/web\/products-eurostat-news\/w\/ddn-20231019-1\" target=\"_blank\" rel=\"noreferrer noopener\">EU packaging waste generation with record increase &#8211; Eurostat (europa.eu)<\/a><br><br><a href=\"https:\/\/www.bpf.co.uk\/\" target=\"_blank\" rel=\"noreferrer noopener\">The UK&#8217;s Leading Plastic Trade Association (bpf.co.uk)<\/a><br><a href=\"https:\/\/www.earthday.org\/what-you-need-to-know-about-the-plastics-treaty\/\" target=\"_blank\" rel=\"noreferrer noopener\">What You Need to Know About the Plastics Treaty &#8211; Earth Day<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Why Traceability on Plastic Coding Matters As global pressure mounts to reduce plastic waste and transition to more sustainable packaging, manufacturers are being asked to do more with less. Consumers demand recyclable, lightweight, and eco-friendly plastic packaging \u2014 yet businesses must still ensure clear, durable, and compliant traceability codes on every pack. Recent studies, such as The Big Plastic Count, highlight<a class=\"moretag\" href=\"https:\/\/www.linxglobal.com\/en-gb\/blog\/ensuring-reliable-traceability-coding-in-a-changing-world-of-plastic-types\/\"> Read More<\/a><\/p>\n","protected":false},"author":9,"featured_media":47043,"menu_order":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-47193","blog","type-blog","status-publish","has-post-thumbnail","hentry"],"acf":{"exclude_from_html_sitemap":false},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.1 (Yoast SEO v22.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Reliable Traceability Coding on Plastic Packaging | Linx UK<\/title>\n<meta name=\"description\" content=\"Discover how to ensure reliable traceability coding on plastic packaging. 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