{"product_id":"blown-film-multilayer-technologies-course-p7","title":"Online Course: Multilayer Technologies in PE Film Production (Part 7) – BLFIL-P7-1007","description":"\u003ch2 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\"\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003eMultilayer Blown Film Technologies \u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\"\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003eYour team runs a 3- or 5-layer line. But do they actually understand what each layer does?\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003eMost multilayer film is designed by copying. This course teaches your team to design by understanding.\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eIn many plants, the layer structure is something that was set up years ago — by the equipment supplier, by a previous technologist, or by trial and error. The team produces it, but nobody can explain \u003cstrong\u003ewhy\u003c\/strong\u003e the outer layer is 20% and not 30%, what the core layer actually contributes, or what would happen if you swapped the inner layer resin.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eWhen a problem appears — poor sealability, insufficient stiffness, bubble instability — the team adjusts process parameters. But in multilayer blown film, \u003cstrong\u003ethe cause is often in the layer structure itself\u003c\/strong\u003e, not in the settings. And if you don't understand the structure, you can't fix what you can't see.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThis course gives your team the logic behind multilayer film construction — so they stop copying structures and start understanding them.\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003eWhat your team will learn to do:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e— Understand the \u003cstrong\u003efunction of each layer\u003c\/strong\u003e — outer (surface properties, printability, resistance), core (stiffness, stability), inner (sealing, slip, adhesion) — and how they work together as a system\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e— Analyze \u003cstrong\u003etypical 3-layer film and 5-layer film configurations\u003c\/strong\u003e — symmetric and asymmetric — and understand why each structure is designed the way it is\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e— Understand \u003cstrong\u003eco-extrusion\u003c\/strong\u003e: how the melt is distributed in a multilayer die head and how the layers are formed into a single tubular structure\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e— Control \u003cstrong\u003elayer ratios\u003c\/strong\u003e and understand how the percentage of each layer affects film properties, process stability, and material cost\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e— Recognize how \u003cstrong\u003ebubble formation and cooling behave differently\u003c\/strong\u003e in multilayer blown film extrusion compared to monolayer — and what that means for frost line, thickness uniformity, and film quality\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e— Make \u003cstrong\u003erational material allocation decisions\u003c\/strong\u003e — putting the right resin in the right layer to optimize both performance and cost\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003eWho is this course for?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e— \u003cstrong\u003eMachine operators\u003c\/strong\u003e running 3-layer or 5-layer blown film lines who want to understand how the layer structure affects what they see on the line — bubble behavior, thickness, film properties\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e— \u003cstrong\u003eProduction engineers and technologists\u003c\/strong\u003e responsible for layer structure design, material selection, and process setup on multilayer blown film extrusion lines\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e— \u003cstrong\u003eQuality specialists\u003c\/strong\u003e who need to connect film performance issues with specific layers in the structure\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e— \u003cstrong\u003eProduction managers and plant directors\u003c\/strong\u003e planning new multilayer extrusion lines, expanding into multilayer production, or evaluating layer design changes for cost optimization\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e— \u003cstrong\u003eCompanies currently producing monolayer PE film\u003c\/strong\u003e that want to understand multilayer blown film technology before investing in new equipment\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003eWhy this course matters\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eMultilayer film is the future of blown film production — but only if your team understands the technology, not just operates the equipment.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eA 5-layer blown film line that runs structures copied from a supplier recommendation \u003cstrong\u003eleaves performance and cost savings on the table\u003c\/strong\u003e. The team produces film that works, but nobody knows if it could work better, cost less, or use cheaper resin in the core without losing properties.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThis course gives your team the ability to \u003cstrong\u003ethink in layers\u003c\/strong\u003e — to understand why a structure is built the way it is, what each layer contributes, and what changes are possible without breaking the system.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe result: \u003cstrong\u003estructures designed with purpose, better material utilization, fewer \"we've always done it this way\" decisions\u003c\/strong\u003e, and a team ready for the next step — advanced 7- and 9-layer configurations.\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003eWhat will you learn?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eTypes of blown film — monolayer, 3-layer, 5-layer\u003c\/strong\u003e When each type makes sense, what drives the decision to add layers, and the logic behind choosing a film structure based on product requirements.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eLayer functions — outer, core, inner\u003c\/strong\u003e What each layer is responsible for and how it contributes to the overall film properties — mechanical strength, surface quality, sealability, and processability.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eTypical 3-layer and 5-layer configurations\u003c\/strong\u003e Symmetric and asymmetric structures used in blown film production — how they are designed, why certain combinations work, and what trade-offs are involved.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eCo-extrusion — how multilayer blown film is formed\u003c\/strong\u003e How the melt from multiple extruders is combined in the die head and distributed into a layered tubular structure — and where problems can originate in the co-extrusion process.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eBubble formation in multilayer blown film extrusion\u003c\/strong\u003e How the presence of multiple layers affects bubble stability, frost line behavior, and cooling — and why multilayer bubbles behave differently from monolayer.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eDesigning layer ratios for optimal performance\u003c\/strong\u003e How the percentage of each layer affects film properties, process stability, and raw material costs — and how to find the right balance between quality and cost.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eRational use of raw materials in multilayer structures\u003c\/strong\u003e How to allocate PE resins across layers to maximize performance while minimizing cost — putting expensive resin only where it adds value to the final product.\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003eCourse format\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e— \u003cstrong\u003ePractical PDF materials\u003c\/strong\u003e covering multilayer blown film logic, layer functions, co-extrusion principles, and layer structure design\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e— \u003cstrong\u003eVideo and audio explanations\u003c\/strong\u003e for selected topics — co-extrusion flow, layer formation, structure analysis\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e— \u003cstrong\u003eFinal quiz\u003c\/strong\u003e to verify your understanding of multilayer construction and its effect on film properties and process behavior\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e— \u003cstrong\u003eRolbatch Academy certificate\u003c\/strong\u003e upon successful completion\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003eThis course is the foundation for advanced multilayer blown film training.\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eParts 1–6 give your team the complete knowledge of the blown film extrusion process — from fundamentals through materials, machine, optimization, supporting technologies, and specialized films. Part 7 opens the door to \u003cstrong\u003emultilayer thinking\u003c\/strong\u003e — the ability to design film structures, not just produce them. Advanced courses P10 and P11 build directly on this foundation with complex 7- and 9-layer configurations.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eSee the \u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003e\u003ca aria-describedby=\"a11y-new-window-message\" rel=\"noopener\" href=\"https:\/\/www.rolbatch.eu\/collections\/blown-film-extrusion-complete-training-program-p1-p9\" target=\"_blank\"\u003efull course series (P1–P9) →\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003ePractical details\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e— \u003cstrong\u003eAccess duration:\u003c\/strong\u003e 30 days — learn at your own pace\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e— \u003cstrong\u003eCertificate:\u003c\/strong\u003e Rolbatch Academy certificate and diploma\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e— \u003cstrong\u003eAvailable languages:\u003c\/strong\u003e German, English, Polish, Spanish. Other languages upon request\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e— \u003cstrong\u003ePrice:\u003c\/strong\u003e net price. VAT will be added at checkout where applicable. EU companies with a valid VAT ID (verified in VIES) may qualify for 0% VAT — contact us before purchase.\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eQuestions? Need a quote for your team?\u003c\/h4\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eVisit our Contact page for pricing, group discounts, and language availability.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eAvailable in 14 languages\u003c\/strong\u003e — English, German, Polish, Spanish, Italian, French, Russian, Slovak, Czech, Turkish, Chinese, Swedish, Ukrainian, Portuguese.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eSee \u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003e\u003ca aria-describedby=\"a11y-new-window-message\" rel=\"noopener\" href=\"https:\/\/www.rolbatch.eu\/pages\/language-versions\" target=\"_blank\"\u003eall language options and conditions →\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003ca aria-describedby=\"a11y-new-window-message\" rel=\"noopener\" href=\"https:\/\/www.rolbatch.eu\/pages\/certificates\" target=\"_blank\"\u003eCertificates -\u0026gt;\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003ca aria-describedby=\"a11y-new-window-message\" href=\"https:\/\/www.rolbatch.eu\/pages\/contact-rolbatch-academy\" rel=\"noopener\" target=\"_blank\"\u003eContact -\u0026gt;\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003ca aria-describedby=\"a11y-new-window-message\" rel=\"noopener\" href=\"https:\/\/www.rolbatch.eu\/pages\/faq-online-trainings-plastics-recycling\" target=\"_blank\"\u003eFAQ -\u0026gt;  \u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003ca aria-describedby=\"a11y-new-window-external-message\" href=\"https:\/\/www.linkedin.com\/in\/drmagdalenalaabs\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003c\/strong\u003eVisit us on LinkedIn -\u0026gt;\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBrowse \u003ca aria-describedby=\"a11y-new-window-message\" rel=\"noopener\" href=\"https:\/\/www.rolbatch.eu\/collections\/blown-film-extrusion-complete-training-program-p1-p9?pb=0\" target=\"_blank\"\u003e\u003cstrong\u003eall courses in this series -\u0026gt;\u003c\/strong\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"text-align: left;\"\u003e\n\u003cimg\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0767\/8282\/9835\/files\/plastics-processing-online-course-training-webinar-RolbatchAcademy-DrMagdalenaLaabs-GreeTech-Innovation-Technology-Sustainability_600x600.jpg?v=1733751745\" alt=\"Rolbatch Academy - Dr Magdalena Laabs - Plastics Processing\" style=\"float: none;\"\u003e\n\u003c\/h3\u003e","brand":"ROLBATCH ACADEMY","offers":[{"title":"1. English - presales","offer_id":53110286516491,"sku":"BLFIL-P7-1007-EN","price":649.0,"currency_code":"EUR","in_stock":true},{"title":"2. Polish - presales","offer_id":53110286549259,"sku":"BLFIL-P7-1007-PL","price":649.0,"currency_code":"EUR","in_stock":true},{"title":"3. German - presales","offer_id":53110286582027,"sku":"BLFIL-P7-1007-DE","price":649.0,"currency_code":"EUR","in_stock":true},{"title":"4. Spanish - presales","offer_id":53110286614795,"sku":"BLFIL-P7-1007-ES","price":649.0,"currency_code":"EUR","in_stock":true},{"title":"5. Italian - translation available upon request","offer_id":53110286647563,"sku":"BLFIL-P7-1007-IT","price":649.0,"currency_code":"EUR","in_stock":true},{"title":"6. French - translation available upon request","offer_id":53110286680331,"sku":"BLFIL-P7-1007-FR","price":779.0,"currency_code":"EUR","in_stock":true},{"title":"7. Russian - translation available upon request","offer_id":53110286713099,"sku":"BLFIL-P7-1007-RU","price":779.0,"currency_code":"EUR","in_stock":true},{"title":"8. Slovak - translation available upon request","offer_id":53110286745867,"sku":"BLFIL-P7-1007-SK","price":779.0,"currency_code":"EUR","in_stock":true},{"title":"9. Czech - translation available upon request","offer_id":53110286778635,"sku":"BLFIL-P7-1007-CZ","price":779.0,"currency_code":"EUR","in_stock":true},{"title":"10. Turkish - translation available upon request","offer_id":53110286811403,"sku":"BLFIL-P7-1007-TR","price":779.0,"currency_code":"EUR","in_stock":true},{"title":"11. Chinese (Simplified) - translation available upon request","offer_id":53110286844171,"sku":"BLFIL-P7-1007-ZH","price":909.0,"currency_code":"EUR","in_stock":true},{"title":"12. Swedish - translation available upon request","offer_id":53110286876939,"sku":"BLFIL-P7-1007-SE","price":1038.0,"currency_code":"EUR","in_stock":true},{"title":"13. Ukrainian - translation available upon request","offer_id":53110286909707,"sku":"BLFIL-P7-1007-US","price":909.0,"currency_code":"EUR","in_stock":true},{"title":"14. Portuguese - translation available upon request","offer_id":53110286942475,"sku":"BLFIL-P7-1007-PT","price":779.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/8282\/9835\/files\/Kurs-7-FOLIE-English-07.png?v=1778578541","url":"https:\/\/www.rolbatch.eu\/products\/blown-film-multilayer-technologies-course-p7","provider":"ROLBATCH ACADEMY","version":"1.0","type":"link"}