One roll of stretch film is enough for 150\u2013200 pallets. One roll of stretch hood film \u2014 for 800\u20131200. This is not a calculation error or a marketing slide. It’s a different physical packaging mechanism that most companies in Poland don’t account for in their line’s TCO \u2014 because “we’ve always used stretch film.” In this guide, I will show you how stretch hood film technically works, why it’s not a commodity, and how to recognize when the change starts to pay off. No sales pitch. Just specifics from production lines. <\/p>\n\n
Stretch wrap is a spiral of film. The film is unwound from a roll, pre-stretched, and wound around a rotating pallet. Each layer overlaps the previous one, and stabilization is provided by the sum of tensions from several rotations. Plus: inexpensive machine. Minus: the pallet only receives tension from four sides and only in the areas where the film was stretched. <\/p>\n\n
Stretch hood works differently. The tubular film (sleeve) is cut to the length of the pallet, sealed at the top, and stretched by four applicator arms to 80\u2013100% of its original width. This stretched hood is lowered onto the pallet, the arms release, and the film elastically shrinks \u2014 on its own, without heat \u2014 generating uniform pressure from five sides: top and four sides. Plus, it tucks under the pallet base. <\/p>\n\n
It’s different physics. Stretch wrap holds the load by friction between layers and the tension of the spiral. Stretch hood holds it by the elastic memory of the material \u2014 the film wants to return to its original dimension and does so throughout the entire logistics cycle. The consequences are measurable. The packaging cycle on Lachenmeier or Beumer lines takes 15\u201325 seconds per pallet. An automatic stretch wrapper needs one or two minutes. Film consumption is 30\u201350% less because instead of building a spiral with several layers, you apply one fitted layer. And the pallet is sealed on five sides \u2014 rain, dust, and UV do not penetrate as easily. <\/p>\n\n
Stretch wrap is a good compromise for small volumes. Stretch hood is packaging engineering for lines that produce more than a dozen pallets per hour. <\/p>\n\n
A stretch hood cycle consists of five steps and typically takes 15\u201325 seconds. It’s worth breaking them down, as this explains why the film is not a commodity. <\/p>\n\n
Step 1: Unwinding the film from the roll. <\/strong>The stretch hood sleeve is produced as a tubular film on a roll, 1300\u20132200 mm wide. The line unwinds a section matched to the pallet’s height. This sounds simple but requires geometric stability of the sleeve \u2014 the width must be repeatable along the entire length of the roll, as any deviation translates into uneven stretching by the four arms in step 3. <\/p>\n\n Step 2: Sealing and cutting the hood. <\/strong>The top edge of the cut sleeve is sealed, creating a hood closed at the top. The seal must withstand the tension force in step 3 and the elastic tension throughout the entire logistics cycle. A weak seal = a torn hood at the first transshipment. <\/p>\n\n Step 3: Stretching the hood with 4 applicator arms. <\/strong>This is a critical moment. Four mechanical arms enter the open bottom of the hood and stretch it to 80\u2013100% of its original width. In this phase, the film is in an elastic state \u2014 stressed but still flexible. If the film’s formulation is poor, the hood will tear or lose its elastic memory in this phase. <\/p>\n\n Step 4: Lowering the hood onto the pallet. <\/strong>The stretched hood is lowered vertically, pulled over the pallet, and tucked under its base. Geometry is crucial here \u2014 the film must be longer than the pallet’s height by a constant margin (usually 100\u2013200 mm) to effectively cover the bottom edge of the load. <\/p>\n\n Step 5: Releasing the arms. <\/strong>The arms release, the film elastically shrinks, and embraces the load from five sides. This is where all the magic of hold force happens \u2014 the clamping force that the film generates throughout the entire logistics cycle. And this is where the advantage of a 5-layer mLLDPE construction over a standard 3-layer one becomes apparent. <\/p>\n\n In a 5-layer film, each layer has a different task. One is designed for shrinkage force (mLLDPE, two metallocenes in the middle), another for edge tear resistance (high-purity LDPE), a third for PCR inclusion without parameter loss, and subsequent layers for slip and external surface control. In a 3-layer film, there are more compromises \u2014 because you have less room for selective design. From my experience: the difference in hold force for long export routes can be around 15\u201320%, with the same film thickness. <\/p>\n\n This is why stretch hood film is not an off-the-shelf product. It is a product designed for a specific application. <\/p>\n\n Four parameters that a production manager should demand from a supplier. Not one, not two \u2014 all four, because each of them individually explains why a specific hood tears or holds. <\/p>\n\n High stretch without loss of hold force. <\/strong>The film must be able to stretch in the applicator to 80\u2013100% of its width while retaining the ability to generate clamping force after the arms are released. These are opposing material properties. The easier you stretch, the harder it is to maintain return force. mLLDPE in the middle layer resolves this compromise better than classic LLDPE \u2014 and this is the real reason why 5-layer constructions have become standard in demanding applications. <\/p>\n\n Elastic memory. <\/strong>After stretching, the film must “want” to return. This parameter determines whether the pallet arrived at the recipient sealed or sagged. In cheaper formulations, elastic memory degrades within 24\u201348 hours after application. In a well-designed 5-layer film, it lasts for weeks. For exports to Southern Europe or Scandinavia, this is not a minor detail. <\/p>\n\n Edge tear resistance. <\/strong>This is where most inexpensive films fail. Pallet edges, sharp corners, wooden elements of a EUR pallet \u2014 each of these points poses a risk of initiating a tear that then propagates through the entire hood. The layered construction allows a layer with high tear resistance to be placed exactly where it is most needed. <\/p>\n\n Dimensional stability of the sleeve on the roll. <\/strong>This is a parameter not seen in specifications, but it determines the repeatability of the process. If the sleeve width changes by \u00b15 mm along the length of the roll, each such deviation translates into uneven stretching of the hood in step 3. Result: some pallets perfectly packed, some loose, some with a torn hood. Micro-downtime on the line. OEE decreases. <\/p>\n\n These are the four things that separate a commodity from an engineered film. And that’s why stretch hood is a product for fewer manufacturers than classic stretch film \u2014 because it requires a different extruder, different raw material know-how, and validation for a specific client line. <\/p>\n\n In Europe, the stretch hood applicator market is dominated by four brands: Lachenmeier (Danish, belongs to Signode), Beumer (German, premium segment), MSK (German, strong in cement plants and chemicals), and Bocedi (Italian, popular in pallet applications in Southern Europe). <\/p>\n\n Each of them has its own applicator arm geometry, stretch speed, sealing parameters, and operating characteristics. A film that works perfectly on a Lachenmeier machine might tear on an MSK machine in step 3. A formulation that provides excellent hold force on a Beumer machine might have too low a friction coefficient on a Bocedi machine in step 4. <\/p>\n\n This is why “we’ll buy stretch hood film from the cheapest supplier in Turkey” rarely works. The film must be selected to match the parameters of the client’s specific line. In practice, it looks like this: the supplier receives the applicator’s technical data, product characteristics (pallet geometry, weight, edge sharpness, transport conditions), complaint history, and then creates a matching formulation. Then, validation is performed on a sample at the client’s site \u2014 usually 2\u20134 pallets under target conditions, with hold force measured over time. <\/p>\n\n At Kablonex, we do this as standard, because our 5-layer extrusion lines allow us to change the layer configuration for specific applications. This is not “magic.” It’s a different delivery model than an off-the-shelf roll from a wholesaler. <\/p>\n\n And this, in my opinion, is the biggest myth in the market \u2014 that stretch hood can be bought “off the shelf.” It can. But then you’re not utilizing the technology; you’re just paying more for film of suboptimal thickness. <\/p>\n\n From our experience, the threshold is 15\u201320 pallets per hour coming off the production line. Above this threshold, stretch hood begins to win on three dimensions simultaneously: <\/p>\n\n Less film per pallet (eliminating several spiral layers, one fitted layer). Higher packaging process efficiency (pallet secured in seconds vs. minutes on a wrapper). Higher load stability (pallet as a single unit, sealed on five sides, not a spiral on four). <\/p>\n\n Additionally, there’s reduced labor costs (less handling at the packaging line), improved OHS (eliminating manual wrapping), fewer complaints for transport damage, and better protection against weather conditions.<\/p>\n\n But stretch hood is not for everyone. The CAPEX for an applicator is 150\u2013500 thousand EUR, depending on speed, integration, and automation. For a company packaging 50 pallets a day \u2014 it makes no sense. For a company packaging 300 pallets per shift \u2014 the payback period is measured in months, not years. <\/p>\n\n Trade-off explicit: stretch hood makes sense if you have a volume above 15\u201320 pallets\/hour, relatively stable load geometry, and any logistical aspect that stretch wrap handles poorly (export, outdoor storage, long transport, demanding recipient).<\/p>\n\n It makes no sense if the volume is low, pallets have highly variable geometry (e.g., mixed assortment day-to-day), or the CAPEX for the applicator is prohibitive. In that case, it’s better to stick with stretch film and optimize the wrapper. <\/p>\n\n This is where it gets interesting, because stretch hood is not just a way to package. It’s a path to implementing PCR and ESG without modifying the packaging line \u2014 which for many companies is the only sensible way to meet PPWR requirements. <\/p>\n\n In practice: the 5-layer construction allows up to 35% PCR (post-consumer recycled) to be placed in the middle layer of the hood, while maintaining mechanical parameters in the skin layers. The applicator doesn’t know the film contains recycled content \u2014 it works the same way. The client’s packaging line requires no changes. And the PPWR report shows a real reduction in virgin plastic. <\/p>\n\n A specific case from our portfolio. A manufacturer of crates for the German market was packaging pallets with an exceptionally thin 50 \u00b5m standard stretch hood. German retailers began requiring PCR content in transport packaging. Most market PCR formulations at this thickness lose mechanical properties. We implemented NEX-HOOD PCR 50 \u00b5m in a dedicated “PCR HQ” formulation with 35% recycled content, enhanced parameters for high-stretch applications, and maintained transparency. Validation was performed on the client’s line before the first delivery. No change in thickness, no applicator modification, with a stronger position in negotiations with retailers. <\/p>\n\n Second dimension: printing. Stretch hood can be printed directly with up to 6 colors using flexo technology. NEX-HOOD NHD offers printing from our partner print shop in 1800 mm width, with the option to combine printing with PCR dosing. What does this mean for business? The pallet ceases to be an anonymous block of film. It becomes a brand carrier in the logistics chain \u2014 visible in the warehouse, during distribution, and at the end customer. No attached labels, no banding. <\/p>\n\n A client from the fertilizer industry, a domestic producer exporting to Europe, had a problem with the red color in their logo fading on pallets after several weeks of outdoor storage at distributors. We implemented NEX-HOOD NHD 70 \u00b5m in a white opaque version, with UV-resistant inks and a UV stabilizer in the film itself. Plus, we achieved downgauging from 90 \u00b5m to 70 \u00b5m. The result: elimination of complaints for print fading, 22% less film per pallet, the pallet maintains visual brand consistency throughout the entire logistics cycle. Implementation without line modification. <\/p>\n\n These are things that stretch wrap physically cannot do. It doesn’t shrink in a way that maintains legible printing on the sides of the pallet. It doesn’t have a layered construction to accommodate 35% PCR without losing parameters. It doesn’t cover the pallet on five sides, so UV still penetrates. <\/p>\n\n Stretch hood opens up a space in this dimension that a spiral wrapper simply doesn’t have.<\/p>\n\n Before you start talking to applicator or film suppliers, do three things. In order. In this sequence. <\/p>\n\n Step 1: Check your volume. <\/strong>How many pallets leave your line per hour on a typical production day? If the number exceeds 15\u201320 pallets\/hour on a single line \u2014 proceed to step 2. If not \u2014 postpone the topic, optimize your wrapper. The CAPEX for a stretch hood applicator with low volume pays off in years, not months. <\/p>\n\n Step 2: Check geometry and logistics. <\/strong>Do your pallets have consistent or similar dimensions (tolerance \u00b110\u201315%)? Is the load going for export, stored outdoors, exposed to UV, rain, multiple transshipments? If the answer to both questions is “yes” \u2014 stretch hood will likely pay off. If pallet geometry varies widely (different assortments, different heights) or everything stays in the warehouse and travels 50 km to the recipient \u2014 stretch film remains competitive. <\/p>\n\n Step 3: Check your cost map. <\/strong>Calculate four numbers in a spreadsheet: film cost per pallet, labor cost for packaging, cost of complaints for transport damage from the last 12 months, energy cost of the wrapper. Sum them up. Compare with the hypothetical cost of stretch hood (film + applicator CAPEX amortization + energy + labor). If the difference favors stretch hood by more than 15% \u2014 you have a business case to build a presentation for management. If the difference is below 5% \u2014 stick with stretch film and revisit this in 2 years when applicator CAPEX drops or volume increases. <\/p>\n\n Three steps. A week of analyst work. A decision for years. <\/em><\/p>\n\n Does your wrapper consume labor, energy, and 4\u00d7 more film than stretch hood? Are transport damage complaints ruining your export profitability? Do German networks require PCR, and you don’t know how to implement it without replacing your line? <\/strong><\/p>\n\n We offer stretch hood films that work on each of the four dominant lines in Europe (Lachenmeier, Beumer, MSK, Bocedi), in variants from 50 to 150 \u00b5m, with up to 35% PCR and printing up to 6 colors. The 5-layer construction with mLLDPE allows selective property design \u2014 it’s not an off-the-shelf commodity. 55 years of experience, BRC, ISCC PLUS, EcoVadis. <\/p>\n\n Expect: 30\u201360% less film per pallet, shorter packaging cycle, fewer damage complaints, a ready PPWR\/ESG path without CAPEX for a new line.<\/p>\n\n Send us your specifications. We respond the same business day \u2014 a technologist will contact you and provide a TCO calculation for your volume. <\/strong><\/p>\n\n <\/p>\n","protected":false},"excerpt":{"rendered":" One roll of stretch film is enough for 150\u2013200 pallets. One roll of stretch hood film \u2014 for 800\u20131200. This is not a calculation error or a marketing slide. It’s a different physical packaging mechanism that most companies in Poland don’t account for in their line’s TCO \u2014 because “we’ve always used stretch film.” In […]<\/p>\n","protected":false},"author":2,"featured_media":2064,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","footnotes":""},"categories":[25],"tags":[],"class_list":["post-2063","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"yoast_head":"\nWhat Stretch Hood Film Must Physically Be Able to Do<\/strong><\/h2>\n\n
Compatibility with Packaging Lines \u2014 Lachenmeier, Beumer, MSK, Bocedi<\/strong><\/h2>\n\n
When Stretch Hood Starts to Pay Off<\/strong><\/h2>\n\n
ESG, PCR, and Printing \u2014 What Stretch Hood Can Do Beyond Pallet Stabilization<\/strong><\/h2>\n\n
3-Step Checklist \u2014 Does Stretch Hood Make Sense for You?<\/strong><\/h2>\n\n