Views: 0 Author: Site Editor Publish Time: 2026-10-19 Origin: Site
The right film decides efficiency, load safety, and cost in automated pallet packaging. You must check five things: film material, thickness and strength, machine compatibility, load stability, and cost-efficiency. A step-by-step approach prevents film breaks, downtime, and product damage.
Modern co-extruded stretch hood film reaches pre-stretch levels above 80% and thicknesses as low as 1.6 mils. This makes the film cost per pallet highly competitive with spiral stretch-wrapping. You can also set your pallet packaging system to use a non-sealed sleeve for the lowest possible film use. Heat shrink-hooding uses more film and energy, because the bag needs a larger pre-shrunk circumference than the pallet perimeter. Choose your machine stretch hood film with these trade-offs in mind, and your pallet packaging line will run reliably.
Choose a film with the right resin blend and additives to match your load's needs.
Match film thickness to your load weight and sharpness for best protection and cost.
Check that the film's stretch ratio and width fit your machine to avoid breaks and downtime.
Test the film on your own line to confirm performance and measure savings.
Compare total cost per pallet, not just price per kilogram, to see the real value.
Stretch hood film is made from polyethylene blends. Most formulas include LLDPE and VLDPE. These resins give your automatic line the strength and stretch it needs.
Manufacturers make stretch hood film from PE blends. ULDPE often makes up the elastic core at 50 wt% or more. It gives elastic recovery of at least 55% at 100% elongation and dart impact of 350–700 g/mil. LDPE adds processability and cuts haze from 25–30% down to 18–24%. mLLDPE in the skin layers gives steady cling, with a coefficient of friction above 0.4 on the inner skin. VLDPE at 10–30 wt% in the inner skin boosts surface tackiness for layer-to-layer adhesion.
Resin | Role | Key Property |
|---|---|---|
ULDPE (core, ≥50 wt%) | Elastic foundation | Elastic recovery ≥55% at 100% elongation |
LDPE (0–40 wt%) | Processability | Reduces haze to 18–24% |
mLLDPE (skin) | Cling | COF µ >0.4 inner skin |
VLDPE (10–30 wt%, inner skin) | Cling enhancement | Surface tackiness |
LLDPE (20–50 wt%, outer skin) | Abrasion resistance | Structural support |
Co-extrusion blends these resins into one tubular film. A 3-layer structure gives basic flexibility. A 5-layer option adds performance without a second lamination step. A 7-layer line meets most packaging needs with better barrier and strength. ECOPACK's Pallet Stretch Hood uses multi-layer co-extruded LLDPE in 3–7 layers. This stretch hood film delivers high stretch ratio with excellent puncture resistance.
Additives adjust each stretch hood film to fit its job. UV stabilizers protect outdoor loads from sun damage. Anti-slip additives raise surface friction and stop layers from shifting during transport. Anti-static formulas protect sensitive goods from electrostatic discharge. Color tinting helps with branding and product identification.
Transparency matters too. Clear hood film lets scanners read barcodes through the wrap. Your team can check inventory without opening the load. A quality stretch hood film gives five-sided coverage in a single motion, so dust and water stay out. Pick your resin blend and additives together, and the stretch hood film will protect your loads through transport and outdoor storage.
Film thickness sets the balance between protection and material cost. Standard machine stretch hood film runs from 50 to 150 microns. Heavy or high-value products need thicker, tougher film. Lighter loads allow downgauging to save material. Co-extrusion lowers thickness with only minimal loss of strength and holding force, so you pack products at lower cost with reduced environmental impact. Stronger puncture resistance plus high holding force permits a substantial cut in film usage while pallet stability stays intact.
Gauge alone does not tell the whole story. Thicker film gives more material cross-section to resist tension and puncture. Load-holding strength, elongation, and tear resistance generally scale with gauge, but not always linearly. Modern high-performance resins can outperform heavier commodity films at lower gauges. One multi-layer LLDPE/mLLDPE stretch hood film in the 60–150 micron range delivers puncture resistance of 600–750 g/mil and stretchability of 250–300%, using 15–20% less material. Match gauge to load weight and sharpness, then confirm performance with a trial.
Automatic stretch hood machines measure pallet height and use the correct amount of film. The one-piece hood structure covers the load in a single motion. Stretch ratios up to 100–200% must fit the machine's capabilities. A hood film typically operates at a stretch ratio of 1:3 to 1:5 while maintaining compression forces of 300–600 N across the pallet. Loads with protruding layers overstress the hood film. Leaning loads can trigger film breaks or rejection-sensor trips. Thicker films may require pre-stretch ratio and carriage-speed adjustments to prevent motor overload or uneven wrapping.
Check machine specifications before you select a film. Confirm layflat width against the machine opening range. A width that is too small causes overstretch and tearing. An oversized width gives weak holding force. Verify gusset depth, hood cut length, thickness tolerance, roll diameter, core size, and maximum roll weight. Film width and gusset combinations are available between 1000 mm and 3400 mm. Virgin material thickness can be customized from 35 to 150 µm, with a minimum of 60 µm for PCR options. Review the film path, roller contact, required slip behavior, and cutting and sealing conditions. These checks matter most on fully automatic high-speed systems, where a single mismatch stops the whole end-of-line packaging flow.
Universal compatibility: works with all major vertical and horizontal stretch hood machines.
A trial run settles the question. Test your chosen stretch hood film on the actual stretch hood machine, measure film usage, and watch for breaks or jams. Reliable stretch hood systems reward this preparation with steady cycles and fewer stoppages.
You need to match your stretch hood film to the load type on your line. Heavy loads need high holding force and strong puncture resistance. Mixed loads put different carton sizes and weights on one pallet. These loads need balanced stretch and strength. Irregular, mixed, or uneven loads make gaps and sharp edges that stress the film during stretching. Pick a film with high stretch and good memory for these cases. A fitted cap forms over the top corners and holds the stack together. The sealed top surface keeps the hood in place during handling.
High-volume, uniform products let you use thinner film and higher stretch ratios. Uniform, stackable products get steady compression across every layer. Irregular loads need thicker gauge and anti-slip additives to stop shifting. Your film choice should reflect the many load types and sizes in your operation. One film grade rarely fits every pallet. Work with your supplier to pick grades for each load category on your line.
Stretch hood film makes a tight, protective cover that seals the load from dust and water. The hood shape cuts water pooling and protects from rain. This makes it good for outdoor storage of construction materials, food and beverage cartons, chemicals, glass, and appliances. Compare the protection levels across packaging methods:
Packaging Method | Weather Protection | Dust Protection | Water Protection |
|---|---|---|---|
Stretch Hood Film | Strong side and top protection; resists weather | Resists dust | Hood shape reduces water pooling and protects from rain |
Stretch Wrap | Limited top coverage unless top sheet or hood added | Protects primarily from dust | Only light moisture protection |
Shrink Wrap | Tight conforming seal | Seals against contaminants | Seals well against moisture, but needs heat equipment and may harm heat-sensitive products |
Stretch hood film gives top weather protection against rain, dust, and sunlight. You get confident outdoor storage in all seasons. The five-sided coverage from a single hood gives a five-sided seal that stretch wrap cannot match without extra materials. Your goods stay dry and clean without water damage or dirt.
The film's stretch and memory help keep steady load containment during transport and storage. The film stretches over the load and then pulls back. This memory keeps tension on the stack throughout the journey. Pallet stability stays strong even after vibration and handling. Hood-wrapped pallets resist layer shifting better than wrapped alternatives. For long-term outdoor storage, stretch hood film is the better choice for keeping goods dry and clean.
ECOPACK's Pallet Stretch Hood offers customizable dimensions to fit standard pallet sizes and load heights. Standard pallets measure 48" x 32". Industrial pallets from GMA and CHEP measure 40" x 48". The range is not limited to U.S. pallets. Minimum pallet size is 600 mm L x 400 mm W (23.6 x 15.7 in). Maximum pallet size is 1600 mm L x 1400 mm W (63 x 55.1 in). A reference pallet height of 2000 mm (78.7 in) and transport height of 600 mm (23.6 in) are available, with other sizes on request. These options let you cover diverse load types and sizes without custom tooling. Your pallet packaging line gains flexibility across every product family you ship.
The stretch hood vs stretch wrap comparison begins with how much film you use. Stretch hood film usually uses less film per pallet than stretch wrap. The film itself costs more per kilogram. That higher unit price often tricks buyers at first. Look at the whole picture instead.
Reel coverage shows the real difference. One hood film reel wraps about 800 to 1200 pallets. A regular stretch film reel covers around 150 pallets. That gap changes your per-pallet film cost and your reorder schedule.
Film Type | Pallets Wrapped per Reel |
|---|---|
Stretch Hood film | 800 to 1200 pallets |
Conventional stretch film | approximately 150 pallets |
Stretch hood systems also add labor savings to the math. Automatic wrappers run without an operator at the load, so your team can do other tasks. You can program the stretch hood machine to pick the right setting for each job. A non-sealed sleeve option gives the lowest film use on loads that fit it. This flexibility makes stretch hood vs stretch wrap a question of total cost, not sticker price.
A trial run answers the stretch hood vs stretch wrap question for your operation. Test the stretch hood film on your real line before you place a large order. Measure film per pallet during the trial. Watch for breaks, jams, and uneven coverage.
Run the same loads through your current method to get a fair baseline. Compare film per pallet, cycle time, and downtime side by side. Confirm the hood film fits your stretch hood machines in width, thickness tolerance, and core dimensions. Check that your stretch hood machine handles the stretch ratio without overload. Write down the results, then figure out your real cost per pallet. This validation step protects your pallet packaging budget and proves the stretch hood vs stretch wrap choice with data from your own floor.
You now have a clear path for choosing machine stretch hood film. Treat film type, thickness, machine compatibility, load stability, and cost as one connected decision. A strong resin blend means little if the gauge does not match your loads. A perfect gauge fails if the film does not fit your machine. Weigh every criterion together, and you avoid breaks, downtime, and product damage.
Use this list as your checklist before you commit to any order. Request samples and run a trial on your own line. Suppliers like ECOPACK can supply stretch hood film in the layers, thicknesses, and dimensions your loads demand. Test the film, measure usage, and confirm the fit.
The right machine stretch hood film is a strategic investment. It protects your products, keeps your line running, and lowers long-term costs. Choose with care, and you gain the right pallet packaging solution for years of reliable operation.
Machine stretch hood film comes in 50 to 150 microns. Heavy or sharp loads need a thicker gauge for puncture resistance. Light, uniform loads let you downgauge and save material. Match the gauge to your load weight, then confirm the choice with a trial run on your line.
Yes. The hood seals the top and four sides in one piece, so rain runs off instead of pooling. UV stabilizers shield the film from sun damage. Construction materials, chemicals, and appliances stay dry and clean through outdoor storage in all seasons.
It does. Stretch hood film reaches ratios up to 100–200%, and your machine must handle that range without overload. A mismatch causes breaks, jams, or uneven coverage. Check your machine's specifications for stretch capability before you order film.
One stretch hood reel wraps roughly 800 to 1200 pallets. A conventional stretch film reel covers about 150 pallets. Stretch hood also uses less film per pallet. The higher price per kilogram pays back through lower consumption and fewer reel changes.
Always. Run the film on your actual line and measure film usage per pallet. Watch for breaks, jams, and uneven coverage. Confirm width, thickness tolerance, and core dimensions fit your machine. Suppliers like ECOPACK can supply samples in the layers and dimensions your loads demand.
