What is a Shrink Wrap Machine?
A Shrink Wrap Machine is machinery that shrinks any material to be wrapped or to call it in simple terms &#; a shrink wrapper. It is included in a plethora of industries most dominant being the food and beverages industry. However, all segments including pharmaceuticals have majorly started using the Shrink Wrap machines extensively. Shrink Wrap is done with the help of a Shrink film and shrink machine which albeit looks thin but is ultra-strong as it comprises of a few layers and bonded strongly. The purpose of this packaging can be varied like giving a compact packing which helps to brand easier and catchy so that it&#;s picked off the shelf easily. Shrink Wrap Machine wraps an item in a free sleeve or a loose polyolefin shrink film and heat is used to shrink the film tightly around. Shrink packing machines are very handy when a bulk of goods needs to be shrink-wrapped.
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Why do industries need a Shrink Wrap Labeler?
Living in a globalized economy, everything is transported here and there and when things have to travel a long way, it has to be ensured that water, rough handling, or air does not destroy the actual nature of the product. A barrier would be the right word to call it a security guard. Shelf life can thus be extended of products leading to a more profitable business. Any uncertainty of bump and scratches can just be eliminated and a gift shrink wrap can just send love to your near and dear ones. A low-cost solution and an economy-friendly way of procuring business cannot beat any packaging model. The storage requirements are reduced as goods can be dispatched as per the demand and supply curve. To sum up in a nutshell why industries need a shrink wrap machine is:
- Low-cost enabler
- Profit doubler
- Effective in Inventory management
- Reduces loss and wastages in the business model
- Low power consumption
Benefits of Using Shrink Wrap Machine
One benefit that just can&#;t be missed out is the sustainability it gives to products. Minimum labour with maximum output. The input of the Shrink wrapper is most commonly available and a very affordable option because the wrap material can shrink up to 50% of its size or more. Depending on the type of business, one may opt for a manual shrink wrap machine, A semi-automatic shrink wrap machine, or a fully automatic shrink wrap machine. The price variants/ Shrink wrap machine price depends on the type opted for and which Industry demands which type of machinery. High-speed version machine are also available and packs per minute define the volume the shrink packaging machine can give.
Industries that use Shrink Wrap Machine
Ever thought of packaged water available in a small refreshment shop? Well, it uses the same technology. Packaged water bottles and other PET bottles make adequate use of the automatic shrink wrap machinery. Shrink wrapping machine for bottles play a major role in the market. A shrink wrap machine manufacturer customizes manifold and presents it to the consumer.Scaffold wrap containment of bridges and building and disaster contingency and relief projects such as damaged buildings and roofs also entail its uses. The shrink wrap manufacturer customizes its product depending on the client&#;s requirement. Food Industry benefits from it like you can store your favourite Pizza or French fries. Cosmetic companies could avail this to pack cold-pressed soaps. Tamper evident shrink wrap is nowadays being used for transporting physical money shipped by an armed transport or even where portable disks or DVDs carrying information needs to reach unscathed. Given all the uses and thinking beyond for which mankind is known, the shrink wrap packaging machine in due course of time is a gadget or device which industries might see a rare possibility of avoiding.
- Wednesday, May 29,
Shrink wrapping is one of the most popular packaging methods today. This method creates a form-fitting layer of packaging when you want to provide your products with extra protection and branding. Shrink wrapping is used daily in the packaging world. A wide selection of styles is available to meet different application needs.
Shrink Wrapping Type
Material
Application
Examples of Items Wrapped
Shrink Banding
PVC Film
Wrapping bottles for safety seal; prevents tampering
Liquid medicines, bottled drinks, shampoos, salad dressings
Shrink Bags
PVC or Polyolefin Shrink Wrap
Packaging with three closed sides, open at the top
CDs, DVDs, books, soap, toys, printed stationary, biscuits
Shrink Sleeves
Pre-cut Printed Shrink Film
Slid over bottles and jars for advertising and info
Drink bottles, medicine bottles, cleaning supplies
Shrink Bundling Film
Single-wound Polyethylene Sheeting
Bundling multiple items together; flat off the roll
Bottled goods, canned goods
So, how do you package products with shrink wrap? A shrink wrap machine is all you need. This machine is like a reliable assistant for your packaging process. Whether you're a first-time user or looking to get the most out of your shrink wrap machine, you must know how this machine works. That's why we composed this post. By the end of the post, you will grasp everything essential to use the shrink wrap machine properly.
Types of Shrink Wrap Machines
Like most packaging machinery, shrink wrap machines come in an array of styles. Each has varying levels of automation and packaging capacity. There are three major types of shrink wrap machines in the market right now. They are:
- I-Bar Shrink Wrap Systems
- L-Bar Shrink Wrap Systems
- Continuous Shrink Wrap Machines
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How Does a Shrink Wrap Machine Work
Although there are many different types of shrink wrap machines, they work on a similar principle. The shrink wrap machine working principle is quite straightforward. These machines work by using heat to shrink a plastic film to form a tight, protective cover around a product. The heat source is typically from a heat gun or a heat tunnel.
How to Use a Shrink Wrap Machine
Using a shrink wrap machine is not a complicated task. Yet, it can vary slightly depending on your machine type. Let's explore how to use different types of shrink wrap machines.
I-Bar Shrink Wrap System
An I-Bar shrink wrap machine consists of two parts: an I-Bar sealer and a heat gun. The I-bar sealer is an impulse sealer. It's typically a manual device with a single sealing bar and a feed roll. The heat gun generates heat to shrink the film wrapped around the product.
(Screenshot Source: US Packaging & Wrapping)
STEP 1: Turn on the power switch of the I-Bar sealer. Set the sealing temperature.
STEP 2: Pull the length of the centerfold shrink film depending on the size of the product being wrapped.
STEP 3: Place your product within the centerfold shrink film. Make sure the product is positioned properly for wrapping.
STEP 4: Lower the sealing bar to cut the film to the desired size. A straight seal is created on the open end of the film.
STEP 5: Raise the sealing bar. Use a hand-held heat gun (often included in the machine) to apply heat to the wrapped product. The heat shrinks the film and creates a snug fit around the product.
STEP 6: Place the wrapped product aside to let it cool down. Check if the shrink wrapping is intact. If not, repeat the process until a tight finish is formed around the product.
L-Bar Shrink Wrap System
Like the I-Bar option, L-Bar shrink wrap systems perform the wrapping process by using an L-Bar impulse sealer and a heat source for shrink. The L-Bar sealer comes in a square frame with two sealing bars intersecting to form an L. Compared with the I-Bar systems, they are more efficient as they can run at a higher speed and often work together with a conveyor. Additionally, L-Bar shrink wrap systems are available in manual and automatic models.
STEP 1: Turn on the power switch on the control panel of the L-Bar sealer. Adjust the temperature and conveyor settings.
STEP 2: Insert the product to be wrapped into the centerfold shrink film. Make sure it's properly aligned.
STEP 3: Pull the centerfold shrink film with the product. Ensure the film length is enough for cutting.
STEP 4: Pull the square frame down, allowing the L-shaped sealing bars to cut and seal the film on two adjacent sides. A L-shaped seal is formed around the product.
STEP 5: Raise the frame. It's worth mentioning that if you choose an automatic L-Bar sealer, the sealing bars will lift by themselves.
STEP 6: Use a heat gun to shrink the film. In the case of a shrink tunnel, place the wrapped product on the conveyor of the tunnel. As the product passes through the tunnel, the heat is evenly distributed onto the film to form a tight fit around the product. If you're using an automatic L-Bar sealer, connect the sealer's conveyor to the tunnel's conveyor. This allows the wrapped product to be transferred to the tunnel when the square frame rises.
STEP 7: Place the product aside and allow it to cool. Inspect the shrink wrapping effect. Repeat the process if any issue is found.
Continuous Shrink Wrap Machine
A continuous shrink wrap machine is typically a fully automatic shrink wrapping machine. It can wrap and seal products without human involvement. The continuous shrink wrap machine can handle a constant flow of products at a high speed. This type of machine is ideal for high-volume shrink wrapping operations. It can often be integrated into an existing packaging or production line.
STEP 1: Turn on the shrink wrap machine. Set all parameters on HMI. Start the shrink wrapping process.
STEP 2: The products to be wrapped are fed into the machine through a feed conveyor. A pair of spacer wheels is mounted on both sides of the conveyor. These components are used to stop the passing products for seconds and allow them to be even spaced to enter the machine.
STEP 3: A feed roll feeds the shrink film into the machine.
STEP 4: As a product is in place, the shrink film is cut off and placed on the product.
STEP 5: The loose-wrapped product continues to ride on the conveyor and travel into a shrink tunnel.
STEP 6: The shrink tunnel applies heat to each passing product to cause the film to shrink. The film conforms to the shape of the product, creating a tight-fitting layer around the product.
STEP 7: The shrink-wrapped products are discharged from the tunnel. Suppose your continuous shrink wrap machine is connected to a production line. In that case, these products will be transferred to the downstream equipment for further processing.
The Bottom Line
Understanding the shrink wrap machine working principle helps you better utilize your machine. By following the steps in this article, you can master how to use different types of shrink wrap machines. Additionally, with the proper knowledge of the shrink wrap machine working principle, you can optimize your packaging process.
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