The Stretch Hood pallet stretch hooding system is an innovative packaging technology that is becoming an increasingly popular end-of-line technology for many companies. Even so, many of its benefits and features are still unknown and many companies that decide to switch to Stretch Hood have questions and doubts about the suitability of Stretch Hood for their product. In addition to knowing the differences concerning other systems such as stretch wrapping or shrink hooding, many questions are raised about the Stretch Hood process itself, the film and its properties, the working dimensions, and the installation itself, among others.
In today&#;s article, we will answer the most common questions, following our series of articles on the Top 10 FAQ (Frequent Asked Questions) of end-of-line packaging systems.
Stretch Hood is a unique pallet packaging system, as it protects the pallet using a hood that adapts to the load without the need to apply heat. Stretch Hood uses a tubular stretch film (Stretch Hood film) which stretches and applies to the load, covering it completely and protecting it on all sides. Unlike other systems, it only uses the exact amount of film needed to protect the load, resulting in a better-protected package with less film usage.
Stretch Hood and shrink hood pallet wrapping systems are similar only in that they both use tubular film to protect the load. But unlike shrink hooding, the Stretch Hooder stretches the film and adjusts it to the load without the use of heat ( most commonly by gas combustion ). The hooding process works this way:
Stretch Hood film is an advanced packaging film under continuous development and improvement to offer different gripping and protection results. It is a multilayer tubular film composed of Linear Low-Density Polyethylene (mLLDPE) and to a lesser extent EVA polymer, with properties for impermeability, stretchability, and elasticity.
Its multilayer structure normally used contains inner layers that offer mechanical strength and stretch (usually composed with some EVA), while its outer layers contain additives that offer resistance to puncturing and friction, as well as sealing and waterproofing (which are those composed with LLDPE).
When choosing a film to protect cargo, it is important to know the objectives of securing, protection, visibility, etc. to determine the necessary thickness, stretch properties, or protection additives (e.g. anti-UV filters).
At Innova, our technical team can advise you in choosing the type of Stretch Hood film that best suits your load. Our Stretch hood system is certified by most commercial film manufacturers in the market with different formats and types of film.
Stretch Hood is the packaging system that offers the best protection and sealing performance due to two factors: the stretch hooding process and the properties of the film.
During the stretch hooding process the machine stretches and applies the film so that it is sealed from the top to the bottom of the pallet. It can also perform a special type of wrapping with extra protection at the base so that the wooden pallet does not get wet in extremely rainy conditions.
Load Stretch hooded down to the base to protect the pallet on which the load is transportedIn addition, Stretch Hood film has waterproof properties in the composition of the film. As it is a Low-Density Linear Polyethylene material, puncture and friction resistance is added to the film itself, so that it does not permit the stage of humidity and rain.
In contrast, other solutions such as the shrink wrapper can leak moisture or raindrops between the wrapping layers. In the case of the heat shrink system, the application of heat itself can generate cracks or perforate the plastic.
Depending on the type of load, the Stretch Hood provides total support for transport and handling. This is the case for stable pallets (e.g. for sack loads) or light pallets (e.g. for logistics or pharmaceuticals). However, in the case of heavy and light loads (e.g. ceramics or building materials), it is advisable to use an additional securing solution such as strapping systems or stretch wrapping with a roping application.
Nevertheless, due to advances in the development of Stretch Hood films, there are more and more films on the market with increased strength and hold-down that allow the load to be secured with a single hood. The key to securing lies in the properties of the film combined with the correct stretch application by the Stretch Hood machine.
Food cargo wrapped with Stretch HoodThe Stretch Hood system usually adapts to various heights required by the customer and common commercial formats. For example, Innova&#;s system usually wraps pallets up to 2,500 mm (8 ft), and even pallets that can be towed (as in the case of bulk / FIBC bags). Thanks to the modularity of our Stretch Hooder system, the machine can be adapted to higher loads.
Innova Stretch Hood installation for special pallet heightsWith the adaptability of the Stretch Hood, unstable and high pallets can be protected with a single cover from head to toe, using much less film than a stretch wrapper for the same type of pallet.
The Stretch Hood System is famous for being able to adapt to different pallet sizes and shapes. Stretch Hood film has a high stretch capacity and there are films on the market that can stretch up to 120% for adaptability to different load sizes, in the case of multi-format production. In addition, most Stretch Hood systems offer a 2-3 reel holder capacity to accommodate these formats.
In the case of Innova&#;s Stretch Hood system, the standard pallet sizes are x mm (52 x 49 inches), but we also have the option of Stretch Hood large formats for loads of x mm (130 x 55 inch).
There are several sizes of Stretch Hood machines on the market depending on the manufacturer and customer needs. In Innova&#;s case, the Stretch Hood machine measures x mm (length x width) &#; 212 x 256 inches &#; with a height of mm (193 inches) and can be extended in height according to the customer&#;s wrapping needs (even with high loads). The Innova Stretch Hood system has been designed taking into account the modularity of the system itself, the safety requirements for the handling of the machine, the standard dimensions of the loads, and the standard dimensions of the production plants.
Our Stretch hood has a 4-pillar frame to provide more safety and stability in wrapping, compared to other manufacturers that only use two columns in their Stretch hoods. It also has an upper safety stop for hood carriage maintenance and the possibility of adapting to different safety requirements for access to the hooding carriage.
Yes, Innova&#;s Stretch Hood system can be integrated into any automatic packaging line that requires it. Although the other systems should be of the same brand, the Innova Stretch Hood system can be retrofitted to lines with existing strapping or stretch wrapping systems to offer the advantages of stretch hooding.
In the case of such integration, our engineering team adapts both the conveyor line and the communication systems to ensure a smooth packaging process.
Combination of Stretch Wrapper and Stretch Hood in one packaging lineAt Innova, we connect with the most commonly used communication and PLC systems in the packaging and end-of-line industry. We offer integrations and compatibility with Omron, Siemens, Rockwell, or Schneider systems among others.
Consult without obligation the compatibility of Stretch Hood with the system of your factory.
In short, there are many generic questions about the Stretch Hood system and other more specific questions about the system manufactured by Innova. Whether they are issues of mechanics, electronics, components, film consumption, or system integrations&#; our Engineering and Technical and Commercial Consulting teams can solve them without obligation.
Do not hesitate to contact us with any questions regarding the Stretch Hood system or any other Innova packaging solution, we will be happy to assist you.
-09-07
The stretch hood, also called pallet wrapping plastic is an innovative packaging technology that provides protection for all types of palletized loads. Despite its growing popularity, many businesses still have questions and concerns about the system&#;s benefits, features, and suitability for their specific products. In addition to knowing the stretch hood wrapping differs from other packaging methods, such as stretch wrap film and shrink wrap film, many questions are raised about the stretch Hood process itself, including the process, film properties, how to work, and applications, to make a comprehensive overview of this cutting-edge process.
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Q1: What is stretch hood system, and how does it differ from traditional pallet wrapping methods?
The stretch hood pallet stretch hood system is an advanced packaging technology that uses a stretchable film to cover and secure palletized loads. Unlike traditional pallet wrapping methods, such as stretch wrap film and shrink film, the stretch hood system does not require heat or additional equipment to shrink the film around the load. Instead, the stretch hooder pulls and releases the film during the hooding process. It stretches and wraps tightly around the load, a secure fit that conforms to the shape of the load. This method offers superior load stability and protection, reduces material usage, and enhances the efficiency of the packaging process.
Q2: What are stretch hood machines and how do they work&#;
The hood machine cuts the film to the required length based on the height of the pallet. Then, the machine pulls the film both horizontally and vertically to form a hood shape that can fit over the pallet, and when the film is over the top of the pallet, and released. As the film contracts, it tightly wraps around the pallet, securing the load from all sides. Furthermore, stretch hood packaging is known for its efficiency and ability to provide superior load stability, protection from environmental factors, and adaptability to varied pallet sizes and shapes. They are extensively utilized in sectors of the economy where quick packing and load security are vital.
Q3: What are the key benefits of using a Stretch Hood System for industrial packaging?
The hood machine stretches and applies the film during the hooding process so that the pallet is sealed from the top to the bottom. It can also perform a special type of wrapping with extra protection at the base so that the wooden pallet does not get wet in extremely rainy conditions.
Stretch hood, a low-density linear polyethylene material, puncture, and friction resistance is added to the film itself so that it does not permit the stage of humidity and rain. Additionally, the stretch hood film creates a secure cover that holds the pallet in place, reducing the risk of product load shifting, toppling, or damage during transportation and storage. The wrapping provides a protective barrier against dust, moisture, and other environmental factors, ensuring that the products arrive at their destination in optimal condition.
Q5: Can the Stretch Hood System be customized for different pallet sizes and shapes?
Yes, the stretch hood packaging is versatile enough to wrap around different pallet shapes effectively due to high elasticity, whether the product has regular or sharp edges. The stretch hood film conforms tightly around the pallet, providing complete protection and stability for the products. Additionally, the film can be adjusted to apply different levels of tension and film thickness, ensuring that it fits securely around any load configuration. This customization ensures the unique requirements of various packaging applications, offering a tailored solution for every pallet.
Q6: What types of materials are used in stretch hood films, and how do they contribute to sustainability?
Stretch hood films are typically made from high-performance polyethylene (PE) materials, known for their strength, elasticity, and durability. These films can be produced from recycled materials and are often recyclable themselves, contributing to a circular economy. Additionally, because the stretch Hood film uses less material than traditional wrapping methods, it helps reduce overall plastic consumption and waste, aligning with sustainability goals and reducing the environmental impact of packaging operations.
Q7: What industries benefit most from using a Stretch Hood System?
Logistics and Distribution: The hood that is securely wrapped and protected provides excellent load stability, reducing the risk of damage during transit and ensuring that goods arrive safely at their destination.
Food and Beverage: The stretch hood process offers hygienic and moisture-resistant packaging against contaminants, ensuring that food and beverage products remain fresh and safe.
Construction Materials: Provides strong, durable wrapping for heavy and irregularly shaped loads. Stretch hood packaging&#;s exceptional elasticity and resistance to punctures make them perfect for securing large or irregularly shaped building supplies, guaranteeing their stability and protection during transportation and storage.
Consumer Goods: Enhances the presentation and protection of retail products, reducing damage and returns. The transparent hood film enhances both product look and safety by making it simple to identify products while keeping them safe, secure, and free of moisture, dust, and filth.
Conclusion
In summary, the hooding process offers a robust and versatile solution for securing palletized load, yet many businesses are still exploring its full potential. I hope that by addressing the most frequently asked questions, we aim to clarify the advantages of this packaging technology. At Yuandian, with many years of specialization in packaging systems, we manufacture our stretch hood to meet customer requirements.
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