Shrink wrapping is one of the most common methods of packaging adopted in most industries. It is a process that involves packaging of products by encapsulating them using a plastic film that shrinks upon heating. It provides security and tamper evidence to the products as well as a clean appearance of the products.
This article will give you the information on shrink wrap machines, materials, applications, and advantages.
What is a Shrink Wrapper?
A shrink wrapper is a machine that packs products in shrink wrap. It harnesses heat, which shrinks parts snugly with a plastic film that ensures the safety of pieces in storage and transportation. That is why it is a widespread packaging method since it is long-lasting and low-priced. In the retailing, manufacturing, and logistics sectors, shrink wrappers may be used. Shrink wrap materials are also available, including those that bear the name Aseah.
Shrink Wrap Materials
The choice of materials that you use in shrink wrap packaging is also significant, and all materials have their uses.
- Polyolefin (POF)
Polyolefin (POF) is elastic, tough, and can be widely used in packages of food and retailing. It will provide you with a professional and clean finish; therefore, it can be used in multiple applications.
- Polyvinyl Chloride (PVC)
Polyvinyl chloride (PVC) is tough and transparent. It is widely applicable in electronics commodities, toy packs, and also in consumer products. One can easily seal it and provide a good view of the products.
- Polyethylene (PE)
Polyethylene is thick and moisture-proof and has the quality of defending against external factors. You can generally use it in heavy-duty packaging, such as industrial products or bulky products.
One of the ways through which you can make your product safe and intact as far as shipping and storage is concerned is by making the right choice of material to use.
The Shrink Wrapping Process
Step 1: Wrapping
Another tool one can utilize as a means of supply is prefabricated wrapping, which, on most occasions, is cheaper. One is the process of placing the product on a conveyor belt, or placing the product manually. The film is tailored in a safe manner towards the shape of the product. This amount of measure assists in enveloping the product and getting it ready to embark on the final part.
Step 2: Heating
The product, after being filled, is then taken to a shrink tunnel or oven. The process is tamper-evident and tamper-proof. The shrink wrap is applied with shrink wrap to indicate the form of the product, and then the film shrinks itself to take the product’s form. The process provides a tamper-proof and tamper-evident seal. The heat also makes the material hard, which further makes it better in its protective nature.
Step 3: Cooling:
After the shrinking process (the film has enveloped the product), a cooling period is experienced. The item that is wrapped is left to cool down and solidify. This will secure the shape in place, thus making the film tight and strong. The product is then cooled, followed by storage or shipment.
This is because when you use these steps, shrink wrapping will be the safe package solution, where there is protection against dust, moisture, and destruction.
Types of Shrink Wrap Machines
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Manual Shrink Wrap Machines
The shrink wrap machines that are manual are suited to small scales. The process of wrapping and sealing is done by you. This machine is more time-consuming and labour-intensive but flexible. It is ideal for businesses whose production requirements are minimal and require a cost-effective option. When dealing with small-scale and medium-scale items, you can employ manual machines in packaging.
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Semi-Automatic Shrink Wrap Machines
An automatic shrink wrap machine involves a considerable amount of cost, whereas the semi-automatic type offers a balance between cost and efficiency. Using this machine, you have to manually put the product; however, sealing is done by the machine. It helps to accelerate the production, but even so, it also needs manual participation. Such machines will fit well in medium-sized companies that will have a stable flow of production. They present reliable production using fewer efforts compared to manual machines.
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Fully Automatic Shrink Wrap Machines
It is performed with the help of a fully automatic shrink wrap machine. It is automatic: wrapping, loading, and sealing of the products are a whole process of the packaging. The machine increases productive output and reduces human labor. It is ideal when dealing with bulk business. The quality level will be very high with a minimal number of interventions. The machines could be used by large manufacturers who would be looking forward to streamlining their packaging.
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Heat Tunnels
There should be heat tunnels that will limit the wrapping of your product. These are the machines that utilize hot air to shrink the film on the item. It is merged with the assistance of the other shrink wrap machines, a heat tunnel. It provides an equal distribution of heat to ensure that the shrink wrap may coil very close to the product. Heat tunnels can be used in both the automatic as well as manual shrink wrapping systems. They are applicable in large quantity packing and are fast and efficient.
Each kind of shrink wrap machine has its advantages. Depending on your production needs and the budget available, you are expected to choose an appropriate machine.
Applications of Shrink Wrapping
- Food Industry
Shrink wrapping is also widely applied in the food industry. It enables freshness and shelf life. The high seal screen guards against contamination and destruction in transportation.
- Retail Products
Retail products are often shrink-wrapped. It provides a professional, clean appearance and holds things in place. Shrink wrapping is being used on many consumer products, such as toys and electronics.
- Industrial Applications
Shrink wrapping helps to cover tools and equipment in the industry. They protect them against dirt, moisture, and damage in the process of storage and transportation.
- Specialty Uses
There are also custom cases of shrink wrapping, such as wrapping pharmaceuticals or groups of products. It makes unique packaging quick and safe to handle.
Benefits of Shrink Wrapping
- Protection
Shrink wrapping provides good protection for products. It protects it during the transportation process against dirt, moisture, and physical damage.
- Tamper Evidence
The shrink wrapping enhances the presentation of the product. It makes the items look clean and professional by boosting brand image.
- Cost-Effectiveness
Shrink wrapping is low-priced. It uses little material and too little labor and provides a cheap way of packaging.
- Aesthetic Appeal
The shrink wrapping enhances the presentation of the product. It makes the items look clean and professional by boosting brand image.
- Space Efficiency
The technique of shrink wrapping is space economy. The film snugly fits the product where no storage can be used, and the cost of shipping is low.
Considerations and Limitations
In case of shrink wrapping, think about the nature of the product being packaged. There are objects that have to be properly protected using specific materials. The cost of shrink wrap can be costly than other forms of packaging. It can also generate waste, which affects the sustainability of the environment.
Maintenance and operational costs of machines are also an aspect you should not ignore. It may require a fully automatic machine when dealing with high-volume applications. There should always be the correct film and equipment to prevent packaging problems. Answer your needs and judge to make the right decision.
Conclusion
Shrink wrapping is a good solution for packaging almost every industry. It offers shielding, consistency, and a business-like application. Jochamp offers all kinds of shrink wrap machines in every size. You can use it when you need a manual or automatic machine, as it provides flexibility. Contact us to find out more.
FAQ’s
Is shrink wrap recyclable?
Shrink wrap is recyclable, yes. It should, however, be well cleaned and sorted out before it is recycled. It is important to make sure to consult local rules on recycling.
How long does shrink wrap last?
The shelf life of shrink wrap varies from several months to a few years, again depending on the storage conditions. Its durability can be altered by UV exposure as well as temperature.
Can shrink wrap be used for irregularly shaped objects
The answer is yes, shrink wrap can fit into strange shapes. It is stretchable and wraps perfectly around various objects with a firm fit.
Can shrink wrap be used for long-term storage?
Shrink wrap is applicable in long-term storage. It not only saves the products against osmosis and dilution but keeps off damage, dirt, and even falls of rain, but it can undergo deterioration.