Here are some best practices you can follow in buying heat-shrinking labeling machinery:

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1. Focus on the heat tunnel, with an eye to throughput.

A properly functioning heat tunnel is the key to successful long-term operation. Heat tunnels are more than simple caverns with a conveyor where heat is applied; they are highly engineered machines, and each is specifically designed to meet unique packaging line conditions. It is virtually impossible to create an apples-to-apples comparison of heat tunnels from different manufacturers based solely on specifications, because the heat-shrink process is too complex. Look instead at throughput. In specifying machinery, require a written commitment of throughput efficiency while evaluating machines. You&#;ll likely choose a vendor that commits to a 99.5% throughput efficiency vs. another that claims 85%. However, it&#;s just as important to specify that the throughput rate must be confirmed prior to placement of the order.

2. Always consider size and shape.

Package size and shape are two critical production variables for specifying heat-shrink label equipment. For example, the shrink characteristics of a film label for a straight side-walled container will be different from an hourglass-shaped package. The equipment supplier must take shape and size into consideration when designing the system. To achieve lowest total cost of ownership, the brand owner should determine whether the size and shape of the package might change in the next three to five years. If change is likely, provide the equipment supplier with enough information to design a system today that incorporates the flexibility to accommodate changes tomorrow.

3. Don&#;t forget material composition.

The material composition of the package also affects the design considerations of the shrink-label solution. For example, a glass jar can absorb more heat than a PET container, and various compositions of PET handle heat differently. With all the effort to make packaging more sustainable, brand owners are lightweighting and using materials with greater recycled content. These changes may affect the shrink-label process. Look three to five years ahead and envision potential changes to the composition of the package. Work with the equipment manufacturer to include the flexibility needed to accommodate a range of materials.

4. Remember the need for speed.

The speed of the line impacts the configuration of the applicator and heat tunnel. You should identify the machine with the greatest throughput upstream of the sleeve applicator and heat tunnel, and then determine tunnel throughput based on that speed. Engineer the shrink-label process to have 20% higher throughput, so that it can serve as a buffer. You should also plan for scenarios that call for higher speeds over a reasonable time period, even three to five years, to reduce total cost of ownership.

5. Take care with film selection.

Every type and formulation of shrink film, whether PET-G, polylactic acid (PLA), or polyvinyl chloride (PVC), has its own shrink characteristics. A film&#;s specifications and cost are only starting points in the selection process. How that film will conform to the size and shape of the package at the line speeds required is a function of actual conditions in the heat tunnel. For example, simply assuming that the label will shrink uniformly may not be correct; dark colors on a label absorb heat more quickly than light colors. Certainly, you may wish to start out with a first choice for a film, but work with the equipment manufacturer and film supplier for package lab testing prior to making a final decision on film choice.

6. Buy a service contract.

Shrink labeling is a process that needs to be maintained within precise parameters. Having a service technician visit the plant on a regular basis to adjust the process, replace worn components, and provide ongoing training for operators pays dividends in terms of less downtime and waste as well as high throughput.

Everything About Shrink Wrapping Machine | Process | Features & Types Of Shrink Wrapping

Shrink Wrapping Machine:-

Shrink Wrapping, Shrink Packaging, or Bundle Wrapping is a packaging process in where a group of products is wrapped in shrinkable plastic film which, after exposing to hot air, holds the products firmly together for transport, as a sales unit or for ease of inventory management.
However, Shrink packaging like any packaging process involves: Preparation of wrapping material (film), Preparation of product, Enclosing (wrapping) in a sleeve of LDPE film then Shrinking/cooling and discharge.
Moreover, Each part of the process including the product itself can affect the speed, versatility, and quality resultant pack. However, the two main factors are product collation and wrapping system.

Shrink Wrapping Machine Process:-

The shrink wrapping process consists of 3 steps:-

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1. Product grouping
The products are arranged into a group (e.g. 3×2 bottles to form a 6-pack), In slower machines the product is fed a single lane, and grouping are done inside the machine by successive strokes of pneumatic or electric pusher (or lifter.) In faster machines, the product is introduced in multilane or pre-collated outside of the machine. while high-speed machines use continuous motion grouping.After that,
2. Bundle forming
A sheet of shrink film is wrapped around the products forming a bundle. there are currently two main ways for wrapping the product, &#; using two rolls with hot knife cutting and sealing
&#; using single roll with cold knife cutting and overlap sealing in the tunnel
3. Heat shrinking
The bundle passes through a heated zone of the shrink tunnel, where re-circulated hot air causes the film to shrink and conform to the shape of enclosed products. Once outside, the pack is cooled by forced air to tighten the film-forming semi-rigid pack ready for stacking on a pallet or further downstream packaging.

The Benefits of Shrink Wrapping:-

Shrinkwrapping makes products more sealed and keeps out dampness and light introduction as well as protecting the product during transit. Shrinkwrapping, for instance, is excellent for CDs as you can observe the cover, as well as food products and pharmaceuticals. Shrinkwrap is also known for being a low-cost packaging solution, with an outlay for the packaging machine, polyolefin shrink wrap film is very economically friendly. Polyolefin shrink wrap film may seem thin &#; it is, in fact, the thinnest on the market &#; but this doesn&#;t compromise its strength.
Having been tried and tested for many years, these are just some of the reasons that shrink wrap is one of the leading packaging solutions in the world.

Features:-

These are certain features available with Shrink wrapping machine:-
1.) Firstly, Sealing line on Two sides of the product
2.) Secondly, Counter& Timer controlled System
3.)Thirdly, Heavy-duty Conveyor System
4.)High-speed Blower System with Continuous Rating
5.)High-Quality Heating Element
6.) Easy Operations
7.)Longer Service Life
8.)most importantly, Resistant Against Corrosion
9.) Two Roll of shrink film Operations

The Benefits of Shrink Wrap Machinery:-

If you decide to use shrink wrap in your business, there are many reasons to prefer using shrink wrapping machinery over alternative packaging methods. For one, automatic shrink wrapping machinery dramatically speeds up your production line.

By substituting manual wrapping for an automated machine, you do not need to complete the tedious, time-consuming tasks of packaging products in shrink film, which gives you more time to achieve more meaningful work. You also save on film costs:

automatic shrink wrapping machinery is much more efficient with the amount of film it uses on each product than someone could hope to be by hand, which means shrink wrapping machinery can save you even more money in the long run.
Shrinkwrapping machinery also helps significantly with inventory control. On the one hand, when you use the right shrink wrapping machine, your goods will be securely wrapped to prevent damage from dirt, dust, and moisture. This can give you added peace of mind that your stock is ready for shipping.
On the other hand, shrink wrapping lets you bring consistency to how much shrink wrap you use per product, allowing you to more accurately know how much material you will need at any one time and reduce your storage requirements.

Advantages Of Shrink Wrapping Machine:-

Now understand the benefits of the shrink-wrapping machine more by some Points:-
1.)Firstly, Protection from dust, Moisture, and foreign Particles.
2.)Secondly, Give stability to the pack
3.)Scratch Resistant
4.)Handling becomes easy and fast
5.) Economical Mode of packing
6.) Prevent Telescoping of Rolls
7.)most importantly, Saving Packaging Labor and time
8.)Attractive Packing Than printed boxes

Video:-

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