{"id":61942,"date":"2026-03-03T10:02:10","date_gmt":"2026-03-03T10:02:10","guid":{"rendered":"https:\/\/www.linxglobal.com\/?post_type=blog&#038;p=61942"},"modified":"2026-08-21T10:49:34","modified_gmt":"2026-08-21T10:49:34","slug":"struggling-with-smudged-printing-on-films-and-foils-heres-the-solution","status":"publish","type":"blog","link":"https:\/\/www.linxglobal.com\/en-gb\/blog\/struggling-with-smudged-printing-on-films-and-foils-heres-the-solution\/","title":{"rendered":"Struggling with Smudged Printing on Films and Foils? Here&#8217;s the Solution"},"content":{"rendered":"\n<p class=\"has-small-font-size\">A clear code on flexible packaging can quickly become a smudged, faded or unreadable one if the printer, ribbon or ink isn&#8217;t suited to the material.<\/p>\n\n\n\n<p class=\"has-small-font-size\">Films and foils can stretch, move and react differently during production, making them more challenging to code than many rigid surfaces.<\/p>\n\n\n\n<p class=\"has-small-font-size\">So, if your date codes or batch numbers are smudging, what&#8217;s causing it\u2014and how can you fix it?<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-navi-blue-color has-text-color has-link-color wp-elements-c8d790994f107e973632eae2fdd36f46\">Why does printing smudge on films and foils?<\/h2>\n\n\n\n<p class=\"has-small-font-size\">There isn&#8217;t one single cause.<\/p>\n\n\n\n<p class=\"has-small-font-size\">Poor print quality on flexible packaging can come from the packaging material, coding technology, production speed or even the way the film moves through the packaging machine.<\/p>\n\n\n\n<p class=\"has-small-font-size\">Common causes include:<\/p>\n\n\n\n<ul class=\"wp-block-list has-small-font-size\">\n<li>Ink or ribbon that isn&#8217;t compatible with the film<\/li>\n\n\n\n<li>Poor adhesion to glossy or coated surfaces<\/li>\n\n\n\n<li>Incorrect printer settings<\/li>\n\n\n\n<li>Film movement, wrinkling or slipping<\/li>\n\n\n\n<li>Printing at unsuitable production speeds<\/li>\n\n\n\n<li>Incorrect printhead setup<\/li>\n\n\n\n<li>Heat-sensitive packaging<\/li>\n\n\n\n<li>Code position<\/li>\n<\/ul>\n\n\n\n<p class=\"has-small-font-size\">The first step is therefore to understand <strong>where the problem is coming from<\/strong>, rather than simply adjusting the printer.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-navi-blue-color has-text-color has-link-color wp-elements-6d8081c639ba8b8b7585aabc7a70c7bb\">Check your packaging material first<\/h2>\n\n\n\n<p class=\"has-small-font-size\">Not all flexible packaging behaves in the same way.<\/p>\n\n\n\n<p class=\"has-small-font-size\">Plastic films, laminated films, foils, pouches, flow wraps and lidding films can have very different surface properties.<\/p>\n\n\n\n<p class=\"has-small-font-size\">A code that works perfectly on one film may not perform in the same way on another.<\/p>\n\n\n\n<p class=\"has-small-font-size\">Before choosing a coding solution, consider:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-small-font-size\"><strong>What material are you printing on?<\/strong><\/li>\n\n\n\n<li class=\"has-small-font-size\"><strong>Is it coated, laminated or glossy?<\/strong><\/li>\n\n\n\n<li class=\"has-small-font-size\"><strong>Does the film move continuously or intermittently?<\/strong><\/li>\n\n\n\n<li class=\"has-small-font-size\"><strong>Will the finished code be exposed to heat, cold, grease or rubbing?<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"has-small-font-size\">Testing the printer and consumables on your <strong>actual production material<\/strong> is one of the simplest ways to avoid print-quality problems later.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-navi-blue-color has-text-color has-link-color wp-elements-42e63db3438edf50da997b536c22e809\">TTO, CIJ or laser: which is best for films and foils?<\/h2>\n\n\n\n<p class=\"has-small-font-size\">There&#8217;s no single technology that&#8217;s right for every flexible packaging line.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-navi-blue-color has-text-color has-link-color wp-elements-f5291030a9224ab7b656649fd1a43b0e\">Thermal Transfer Overprinting (TTO)<\/h3>\n\n\n\n<p class=\"has-small-font-size\">TTO is particularly well suited to printing high-resolution information directly onto flexible films and foils.<\/p>\n\n\n\n<p class=\"has-small-font-size\">A heated printhead transfers ink from a ribbon onto the packaging material. The result is a sharp code that is <strong>dry immediately<\/strong>, with no liquid ink drying time.<\/p>\n\n\n\n<p class=\"has-small-font-size\">TTO can be used for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-small-font-size\">Best-before and use-by dates<\/li>\n\n\n\n<li class=\"has-small-font-size\">Batch and lot numbers<\/li>\n\n\n\n<li class=\"has-small-font-size\">Barcodes<\/li>\n\n\n\n<li class=\"has-small-font-size\">QR and Data Matrix codes<\/li>\n\n\n\n<li class=\"has-small-font-size\">Ingredients<\/li>\n\n\n\n<li class=\"has-small-font-size\">Allergen information<\/li>\n\n\n\n<li class=\"has-small-font-size\">Logos and graphics<\/li>\n<\/ul>\n\n\n\n<p class=\"has-small-font-size\">It can also be integrated with VFFS, HFFS and flow-wrap packaging machinery.<\/p>\n\n\n\n<p class=\"has-small-font-size\">For many flexible packaging applications, TTO should be one of the first technologies you consider.<\/p>\n\n\n\n<p><strong><a href=\"https:\/\/www.linxglobal.com\/en-gb\/products\/tto-printer\/\">Explore Linx Thermal Transfer Overprinters<\/a><\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading has-navi-blue-color has-text-color has-link-color wp-elements-26cf12c28bc3d344785303a92f9acf47\">Continuous Inkjet (CIJ)<\/h3>\n\n\n\n<p class=\"has-small-font-size\">CIJ is a versatile, non-contact option that uses fast-drying inks to apply variable codes.<\/p>\n\n\n\n<p class=\"has-small-font-size\">It can be useful when the packaging application or production setup makes non-contact printing preferable.<\/p>\n\n\n\n<p class=\"has-small-font-size\">The correct ink is particularly important. Adhesion and durability will depend on the film, coating and conditions the finished pack experiences.<\/p>\n\n\n\n<p><strong><a href=\"https:\/\/www.linxglobal.com\/en-gb\/products\/cij-printers\/\">Explore Linx Continuous Inkjet Printers<\/a><\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading has-navi-blue-color has-text-color has-link-color wp-elements-57dbf05920deb6e89a608f1f948d0080\">Laser coding<\/h3>\n\n\n\n<p class=\"has-small-font-size\">Laser coding can create permanent marks on compatible packaging without using ink or ribbon.<\/p>\n\n\n\n<p class=\"has-small-font-size\">However, flexible packaging varies significantly in composition, coatings and sensitivity to heat, so the laser and substrate must be carefully matched.<\/p>\n\n\n\n<p class=\"has-small-font-size\">Testing is essential before specifying a laser solution for films or foils.<\/p>\n\n\n\n<p><strong><a href=\"https:\/\/www.linxglobal.com\/en-gb\/products\/laser-coders\/\">Explore Linx Laser Coding Systems<\/a><\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-navi-blue-color has-text-color has-link-color wp-elements-7b9abd744a700db8b217cb88db535b16\">Why TTO can help prevent smudged codes<\/h2>\n\n\n\n<p class=\"has-small-font-size\">One of TTO&#8217;s biggest advantages on flexible packaging is that it is a <strong>dry printing process<\/strong>.<\/p>\n\n\n\n<p class=\"has-small-font-size\">There is no liquid ink waiting to dry.<\/p>\n\n\n\n<p class=\"has-small-font-size\">When the correct ribbon is matched to the packaging material, TTO can produce sharp, high-resolution codes that are dry immediately.<\/p>\n\n\n\n<p class=\"has-small-font-size\">This makes it particularly useful for packaging lines where clear dates, batch numbers, barcodes or 2D codes are important.<\/p>\n\n\n\n<p class=\"has-small-font-size\">But ribbon selection still matters.<\/p>\n\n\n\n<p class=\"has-small-font-size\">Different films and operating conditions can require different ribbon formulations. The code should be tested against the handling, sealing, storage and distribution conditions the finished pack will experience.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-navi-blue-color has-text-color has-link-color wp-elements-9d112f5a0f574be1b21110f9208997f3\">Don&#8217;t forget production speed<\/h2>\n\n\n\n<p class=\"has-small-font-size\">Sometimes the packaging isn&#8217;t the problem.<\/p>\n\n\n\n<p class=\"has-small-font-size\">The coding system may simply not be correctly matched to the way your packaging line operates.<\/p>\n\n\n\n<p class=\"has-small-font-size\">At higher speeds, poor setup can lead to:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-small-font-size\">Incomplete prints<\/li>\n\n\n\n<li class=\"has-small-font-size\">Misaligned codes<\/li>\n\n\n\n<li class=\"has-small-font-size\">Reduced clarity<\/li>\n\n\n\n<li class=\"has-small-font-size\">Inconsistent positioning<\/li>\n<\/ul>\n\n\n\n<p class=\"has-small-font-size\">When choosing a printer, don&#8217;t look at maximum print speed alone.<\/p>\n\n\n\n<p class=\"has-small-font-size\">Consider the packaging machine&#8217;s movement, packs per minute, print area, message size and the time available to complete each print.<\/p>\n\n\n\n<p class=\"has-small-font-size\">A printer that works well with the actual movement of your packaging line is more important than the biggest speed number on a specification sheet.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-navi-blue-color has-text-color has-link-color wp-elements-959b944055008530d9adc9fb82e59bed\">How to stop codes smudging on flexible packaging<\/h2>\n\n\n\n<p class=\"has-small-font-size\">If you&#8217;re experiencing poor print quality, work through these five checks:<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-navi-blue-color has-text-color has-link-color wp-elements-4def16502a41ad36182fa2e64fb4ec0d\">1. Check the substrate<\/h3>\n\n\n\n<p class=\"has-small-font-size\">Identify exactly what film, foil or laminate you&#8217;re printing on.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-navi-blue-color has-text-color has-link-color wp-elements-db0de91110b3137f32cee48f967415bf\">2. Check the ink or ribbon<\/h3>\n\n\n\n<p class=\"has-small-font-size\">Make sure the consumable is suitable for the packaging surface and the conditions the finished pack will experience.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-navi-blue-color has-text-color has-link-color wp-elements-4155286459bad3754ec279e48b9f4cd3\">3. Check the printer setup<\/h3>\n\n\n\n<p class=\"has-small-font-size\">Review printhead position, pressure, temperature and other relevant settings for your coding technology.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-navi-blue-color has-text-color has-link-color wp-elements-d44ec449d0815d55a7c7decf5a44e1c9\">4. Check the production line<\/h3>\n\n\n\n<p class=\"has-small-font-size\">Look for film movement, wrinkles, vibration or speed changes that could affect print quality.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-navi-blue-color has-text-color has-link-color wp-elements-9364f1d00bc0abe27288b1b729101a69\">5. Test before changing packaging<\/h3>\n\n\n\n<p class=\"has-small-font-size\">If you&#8217;re introducing a new film, foil or supplier, test the coding application before full production starts.<\/p>\n\n\n\n<p class=\"has-small-font-size\">A small packaging change can make a big difference to print performance.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-navi-blue-color has-text-color has-link-color wp-elements-c42e9247376ee2bf369eeee0dd7054e9\">What&#8217;s the best printer for flexible packaging?<\/h2>\n\n\n\n<p class=\"has-small-font-size\">It depends on your application.<\/p>\n\n\n\n<p class=\"has-small-font-size\">For flexible films, foils, pouches and flow wraps, <strong>TTO is often a strong option<\/strong> because it produces sharp, instantly dry codes and integrates with common flexible packaging machinery.<\/p>\n\n\n\n<p class=\"has-small-font-size\">CIJ may be preferable where a versatile non-contact printing solution is needed, while laser can provide permanent coding on compatible materials.<\/p>\n\n\n\n<p class=\"has-small-font-size\">The best way to choose is to test the technology using your <strong>actual packaging, code and production requirements<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-navi-blue-color has-text-color has-link-color wp-elements-2d87b9651191d4459170fb4cbcd4de70\">Get a clear code on your packaging<\/h2>\n\n\n\n<p class=\"has-small-font-size\">Smudged printing doesn&#8217;t necessarily mean there&#8217;s something wrong with your packaging\u2014or your printer.<\/p>\n\n\n\n<p class=\"has-small-font-size\">Often, the issue is simply that the <strong>substrate, consumable, printer settings and production conditions aren&#8217;t properly matched<\/strong>.<\/p>\n\n\n\n<p class=\"has-small-font-size\">Linx offers TTO, CIJ and laser coding solutions for flexible packaging applications, including films, foils, pouches, labels and flow wraps.<\/p>\n\n\n\n<p class=\"has-small-font-size\"><strong>Not sure which will work on your packaging?<\/strong><\/p>\n\n\n\n<p class=\"has-small-font-size\"><strong>Send us a sample of your film or foil and we&#8217;ll help you find the right coding solution.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-navi-blue-color has-text-color has-link-color wp-elements-c612da908a4abd7503b9f2cbbd65ce1e\"><strong>Take Actions Now:<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-small-font-size\"><a href=\"https:\/\/www.linxglobal.com\/en-gb\/sample-printing\/\"><strong>Request a Print Sample<\/strong><\/a>&nbsp;to see the solution in action&nbsp;&nbsp;&nbsp;<\/li>\n\n\n\n<li class=\"has-small-font-size\"><a href=\"https:\/\/www.linxglobal.com\/en-gb\/support\/documentation\/\"><strong>Download Product Brochure<\/strong><\/a>&nbsp;for detailed specifications&nbsp;&nbsp;&nbsp;<\/li>\n\n\n\n<li class=\"has-small-font-size\"><a href=\"https:\/\/www.linxglobal.com\/en-gb\/contact-us\/\"><strong>Talk to an Expert<\/strong><\/a>&nbsp;to find the right coding solution for your retail operations&nbsp;<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A clear code on flexible packaging can quickly become a smudged, faded or unreadable one if the printer, ribbon or ink isn&#8217;t suited to the material. Films and foils can stretch, move and react differently during production, making them more challenging to code than many rigid surfaces. So, if your date codes or batch numbers are smudging, what&#8217;s causing it\u2014and how<a class=\"moretag\" href=\"https:\/\/www.linxglobal.com\/en-gb\/blog\/struggling-with-smudged-printing-on-films-and-foils-heres-the-solution\/\"> Read More<\/a><\/p>\n","protected":false},"author":72,"featured_media":61957,"menu_order":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-61942","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>Struggling with Smudged Printing on Films and Foils? Here\u2019s the Solution<\/title>\n<meta name=\"description\" content=\"High-performance coding solutions for films and foils. Designed for fast production lines and reliable results on flexible packaging.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.linxglobal.com\/en-gb\/blog\/struggling-with-smudged-printing-on-films-and-foils-heres-the-solution\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Struggling with Smudged Printing on Films and Foils? Here\u2019s the Solution\" \/>\n<meta property=\"og:description\" content=\"High-performance coding solutions for films and foils. Designed for fast production lines and reliable results on flexible packaging.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.linxglobal.com\/en-gb\/blog\/struggling-with-smudged-printing-on-films-and-foils-heres-the-solution\/\" \/>\n<meta property=\"og:site_name\" content=\"Linx Printing Technologies\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/people\/Linx-Printing-Technologies-UK\/61587101996275\/\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-21T10:49:34+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.linxglobal.com\/wp-content\/uploads\/2026\/03\/LX4212-e1772531749753.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"534\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":[\"Article\",\"BlogPosting\"],\"@id\":\"https:\/\/www.linxglobal.com\/en-gb\/blog\/struggling-with-smudged-printing-on-films-and-foils-heres-the-solution\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.linxglobal.com\/en-gb\/blog\/struggling-with-smudged-printing-on-films-and-foils-heres-the-solution\/\"},\"author\":{\"name\":\"Rebecca Barsby\",\"@id\":\"https:\/\/www.linxglobal.com\/en-gb\/#\/schema\/person\/fffabe9b511e67e5227ef84755f21289\"},\"headline\":\"Struggling with Smudged Printing on Films and Foils? 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